CN110685640B - Switching sliding sleeve device for oil gas exploitation, oil gas exploitation tool and switching method of wall body through hole of oil gas exploitation tool - Google Patents
Switching sliding sleeve device for oil gas exploitation, oil gas exploitation tool and switching method of wall body through hole of oil gas exploitation tool Download PDFInfo
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- CN110685640B CN110685640B CN201911102352.7A CN201911102352A CN110685640B CN 110685640 B CN110685640 B CN 110685640B CN 201911102352 A CN201911102352 A CN 201911102352A CN 110685640 B CN110685640 B CN 110685640B
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 60
- 230000001960 triggered effect Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000004080 punching Methods 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 64
- 239000012530 fluid Substances 0.000 claims description 41
- 230000009969 flowable effect Effects 0.000 claims description 27
- 238000011144 upstream manufacturing Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
The invention provides a switching sliding sleeve device for oil gas exploitation, an oil gas exploitation tool and a switching method of a wall body through hole thereof, relates to the technical field of oil gas exploitation, and solves the technical problems that in the prior art, the switching operation steps of the upper wall body through hole of an outer cylinder are complex and complicated, and a large amount of manpower and material resources are required to be consumed. The switch sliding sleeve device for oil gas exploitation and the oil gas exploitation tool comprise an outer barrel, a switch sliding sleeve mechanism and a trigger body, wherein when the trigger body is put into the outer barrel and the switch sliding sleeve mechanism is triggered by punching, the switch sliding sleeve mechanism can be switched from a state of opening a wall body through hole to a state of closing the wall body through hole until the switch sliding sleeve mechanism is triggered by the trigger body or another trigger body again, and then is switched from the state of closing the wall body through hole to the state of opening the wall body through hole. The method for opening and closing the through hole of the wall body of the oil and gas exploitation tool comprises the following steps: and putting the trigger body into the outer cylinder to open the wall body through hole, and putting the trigger body into the outer cylinder again to close the wall body through hole. The invention is convenient for the operation of the wall body through hole switch, and reduces the operation cost.
Description
Technical Field
The invention relates to the technical field of oil gas exploitation, in particular to an oil gas exploitation sliding sleeve device for oil gas exploitation, an oil gas exploitation tool provided with the same and a switching method of a through hole in the upper wall body of the oil gas exploitation tool.
Background
In oil and gas well production processes, it is necessary to shut-in or switch-on the flow of liquids by reciprocating motion. The switch sliding sleeve device for oil and gas exploitation is an important tool in the exploitation process of oil and gas wells.
The existing switch sliding sleeve device for oil gas exploitation comprises an outer barrel, a sliding sleeve and a ball body for triggering, wherein a connecting pin is adopted between the sliding sleeve and the outer barrel to be connected, an internal fluid channel capable of being communicated with the outer barrel and a wall body through hole outside the outer barrel are arranged on the barrel wall of the outer barrel, and after the ball body is put in, the ball body can drive the sliding sleeve to break the connecting pin to descend to close the wall body through hole when falling onto the sliding sleeve under the action of dead weight. When the wall through hole needs to be opened, a special hooking tool needs to be thrown down to lift the pipe column, the sliding sleeve is pulled up to expose the wall through hole, and a plurality of people need to cooperatively work in the operation process.
Those skilled in the art have found that the prior art has at least the following technical problems:
At present, a common ball-throwing method in the prior art controls the on or off of a downhole tool, but the ball-throwing action cannot realize the switching between the on and the off. Therefore, the ball throwing and pressing must be combined with other methods such as the following operations of tools, lifting pipe columns and the like to control the switching action of the tools, and a plurality of persons are required to work cooperatively in the operation process, so that a great deal of manpower and material resources are required to be consumed, and therefore, how to control the underground fluid passage through the mechanical tools becomes a difficult problem which puzzles the production of the oil and gas field.
Disclosure of Invention
At least one object of the invention is to provide a switching sliding sleeve device for oil gas exploitation, an oil gas exploitation tool provided with the switching sliding sleeve device for oil gas exploitation and a switching method of a through hole of an upper wall body of the oil gas exploitation tool, which solve the technical problems that in the prior art, the switching operation steps of the through hole of the upper wall body of an outer cylinder are complex and complicated, and a large amount of manpower and material resources are required to be consumed.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a switch sliding sleeve device for oil gas exploitation, which comprises an outer barrel, a switch sliding sleeve mechanism and a trigger body, wherein:
The wall body through hole capable of communicating the internal fluid channel of the outer cylinder and the outer part of the outer cylinder is formed in the wall body of the outer cylinder, and the switch sliding sleeve mechanism is arranged on the inner side of the outer cylinder;
The axial lead extending direction of the central hole of the switch sliding sleeve mechanism is coincident with or parallel to the axial lead extending direction of the outer cylinder;
When the trigger body is put into the outer cylinder and the switch sliding sleeve mechanism is triggered by punching, the switch sliding sleeve mechanism can be switched from a state of opening the wall body through hole to a state of closing the wall body through hole until the trigger body or the other trigger body is triggered again, and then is switched from a state of closing the wall body through hole to a state of opening the wall body through hole; or when the trigger body is put into the outer cylinder and the switch sliding sleeve mechanism is triggered by punching, the switch sliding sleeve mechanism can be switched from a state of closing the wall body through hole to a state of opening the wall body through hole until the trigger body or the other trigger body triggers again, and then is switched from a state of opening the wall body through hole to a state of closing the wall body through hole.
Preferably or alternatively, the number of triggers is two or more, wherein: the trigger body which is put in for the first time is a first trigger, the trigger body which is put in again or the other trigger body is a second trigger, and the first trigger and/or the second trigger are/is made of a dissolvable or degradable material (preferably made of a dissolvable or degradable material in water).
Preferably or optionally, the first trigger and/or the second trigger is a sphere, an ellipsoid, a cylindrical structure or a truncated cone structure.
Preferably or alternatively, the switch slide mechanism comprises a slide, a seat, and a flowable medium, wherein:
the seat body is connected with the outer cylinder or is of an integrated structure;
the sliding sleeve, the seat body and the outer cylinder form a liquid-sealed flowing medium accommodating chamber, or the switch sliding sleeve mechanism further comprises a liquid-sealed baffle ring which is connected with the inner side of the sliding sleeve in a liquid-sealed manner, and the sliding sleeve, the seat body, the outer cylinder and the liquid-sealed baffle ring form a liquid-sealed flowing medium accommodating chamber;
The flowable medium is filled in the flowable medium accommodating cavity;
The sliding sleeve comprises an inner sliding sleeve and an outer sliding sleeve sleeved outside the inner sliding sleeve, wherein: when one of the first trigger and the second trigger is put into the outer cylinder and the upstream end of one of the inner sliding sleeve and the outer sliding sleeve is stamped, the stamped sliding sleeve in the inner sliding sleeve and the outer sliding sleeve can downwards slide and push the radial through holes in the outer sliding sleeve and the wall through holes to be staggered with each other or the inner sliding sleeve can shield the wall through holes to close the wall through holes, and when the other of the first trigger and the second trigger is put into the outer cylinder and the other of the inner sliding sleeve and the outer sliding sleeve is stamped, the stamped sliding sleeve downwards slides and pushes the radial through holes in the outer sliding sleeve and the wall through holes to coincide by pushing the non-stamped sliding sleeve through the fluid medium, and the inner sliding sleeve exposes the radial through holes in the outer sliding sleeve and the wall through holes to be opened; or a radial through hole is formed in the wall body of the outer sliding sleeve, when one of the first trigger and the second trigger is put into the outer cylinder and the upstream end of one of the inner sliding sleeve and the outer sliding sleeve is stamped, the stamped sliding sleeve in the inner sliding sleeve and the outer sliding sleeve can descend and push the radial through hole in the outer sliding sleeve and the wall body through hole to coincide with each other by pushing the non-stamped sliding sleeve in the outer sliding sleeve through the flowable medium, the inner sliding sleeve exposes the radial through hole in the outer sliding sleeve and the wall body through hole to open the wall body through hole, and when the other of the first trigger and the second trigger is put into the outer cylinder and the other of the inner sliding sleeve and the outer sliding sleeve is stamped, the stamped sliding sleeve descends and pushes the non-stamped sliding sleeve to shift the radial through hole in the outer sliding sleeve and the wall body through hole to each other or enables the inner sliding sleeve to block the wall body through hole to close the wall body through hole; or when one of the first trigger and the second trigger is put into the outer cylinder and the upstream end of the inner sliding sleeve is stamped, the inner sliding sleeve can downwards close the wall body through hole, in the descending process, the inner sliding sleeve pushes the outer sliding sleeve to upwards move through the flowable medium, and when the other one of the first trigger and the second trigger is put into the outer cylinder and the outer sliding sleeve is stamped, the stamped outer sliding sleeve downwards moves and pushes the inner sliding sleeve which is not stamped to upwards move through the flowable medium, so that the inner sliding sleeve is exposed out of the wall body through hole to open the wall body through hole.
Preferably or optionally, the upstream end port size of the outer sliding sleeve is larger than the upstream end port size of the inner sliding sleeve, the first trigger and the second trigger are spheres, and the diameter of the first trigger is different from the diameter of the second trigger; or one of the first trigger and the second trigger is only matched with the shape of the outer sliding sleeve and can only drive the outer sliding sleeve matched with the first trigger to move downwards, and the other one of the first trigger and the second trigger is only matched with the shape of the inner sliding sleeve and can only drive the inner sliding sleeve matched with the first trigger to move downwards.
Preferably or alternatively, the flowable medium is hydraulic oil, water or particles having flowability.
Preferably or optionally, the respective upstream ends of the inner sliding sleeve and the outer sliding sleeve are respectively provided with an inner conical surface or are fixedly connected with a ball seat provided with the inner conical surface, and the inner diameter of the inner conical surface is gradually reduced along the direction from upstream to downstream.
Preferably or optionally, the outer sliding sleeve is provided with a stop flange, and when the outer sliding sleeve descends to a position for closing the wall body through hole, the stop flange is abutted with the upstream end of the inner sliding sleeve; and/or the number of the groups of groups,
The wall body on the inner sliding sleeve is provided with an inner wall through hole, when the radial through hole on the outer sliding sleeve, the inner wall through hole on the inner sliding sleeve and the wall body through hole are overlapped, the wall body through hole is in an opening state, and when the radial through hole on the outer sliding sleeve, the inner wall through hole on the inner sliding sleeve and the wall body through hole are staggered, the wall body through hole is in a closing state.
The oil gas exploitation tool provided by the embodiment of the invention comprises the switch sliding sleeve device for oil gas exploitation, which is provided by any technical scheme of the invention.
Preferably or alternatively, the hydrocarbon production tool is a sliding sleeve tool or packer, wherein:
The packer comprises a rubber cylinder and a fracturing fluid channel, when a wall through hole is in an open state, fracturing fluid in an internal fluid channel of the outer cylinder can sequentially flow out through the wall through hole and the fracturing fluid channel and push the rubber cylinder to deform and be seated in a casing or an oil gas well where the packer is located, when the wall through hole is in a closed state, the fracturing fluid in the fracturing fluid channel can maintain the rubber cylinder to deform and be seated in the casing or the oil gas well where the packer is located, and when the wall through hole is in an open state again, the fracturing fluid in the fracturing fluid channel sequentially flows into the internal fluid channel of the outer cylinder through the fracturing fluid channel and the wall through hole so as to enable the rubber cylinder to recover the shape before being seated and release the seat.
The switching method of the through hole of the wall body of the oil and gas exploitation tool provided by the embodiment of the invention comprises the following steps:
Step A: the triggering body is put into the outer barrel of the switching sliding sleeve device for oil and gas exploitation, and when the triggering body is put into the outer barrel and the switching sliding sleeve mechanism is triggered by punching, the switching sliding sleeve mechanism can be switched from a state of opening the wall body through hole to a state of closing the wall body through hole;
And (B) step (B): and putting the trigger body into the outer cylinder again, and switching the switch sliding sleeve mechanism from a state of closing the wall body through hole to a state of opening the wall body through hole when the switch sliding sleeve mechanism is triggered by the trigger body or another trigger body again.
The switching method of the through hole of the wall body of the oil and gas exploitation tool provided by the embodiment of the invention comprises the following steps:
Step A: the triggering body is put into the outer barrel of the switching sliding sleeve device for oil and gas exploitation, and when the triggering body is put into the outer barrel and the switching sliding sleeve mechanism is triggered by punching, the switching sliding sleeve mechanism can be switched from a state of closing the wall body through hole to a state of opening the wall body through hole;
And (B) step (B): and putting the trigger body into the outer cylinder again, and switching the switch sliding sleeve mechanism from a state of opening the wall body through hole to a state of closing the wall body through hole when the switch sliding sleeve mechanism is triggered by the trigger body or another trigger body again.
Any technical scheme of the invention can at least produce the following technical effects:
In the switch sliding sleeve device for oil and gas exploitation, when the trigger body is put into the outer cylinder and the switch sliding sleeve mechanism is stamped, the switch sliding sleeve mechanism can be switched from a state of opening the wall body through hole to a state of closing the wall body through hole until the switch sliding sleeve mechanism is triggered by the trigger body or another trigger body again, and then is switched from the state of closing the wall body through hole to the state of opening the wall body through hole; or when the trigger body is put into the outer cylinder and the trigger switch sliding sleeve mechanism is stamped, the switch sliding sleeve mechanism can be switched from the state of closing the wall body through hole to the state of opening the wall body through hole until the trigger body is triggered by the trigger body or another trigger body again, and then is switched from the state of opening the wall body through hole to the state of closing the wall body through hole.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a switching process of a switching sleeve device for oil and gas exploitation according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a sliding sleeve tool for use with a switching sliding sleeve device for oil and gas recovery according to one embodiment of the present invention;
FIG. 3 is a schematic view of a sliding sleeve tool used in a switching sliding sleeve device for oil and gas exploitation according to yet another embodiment of the present invention;
FIG. 4 is a schematic illustration of a sliding sleeve tool for use with a switching sliding sleeve device for oil and gas recovery according to yet another embodiment of the present invention;
FIG. 5 is a schematic illustration of a packer for use with a switching sleeve device for oil and gas recovery according to one embodiment of the present invention;
FIG. 6 is an enlarged schematic view of portion A of FIG. 5;
FIG. 7 is a schematic flow chart of a method for opening and closing a through hole in a wall of an oil and gas exploitation tool according to an embodiment of the present invention;
FIG. 8 is a flow chart of another method for opening and closing a through hole in a wall of an oil and gas production tool according to an embodiment of the present invention;
The marks in the figure: 1. an outer cylinder; 10. a wall through hole; 11. an internal fluid passageway; 2. a switch sliding sleeve mechanism; 21. a sliding sleeve; 211. an inner sliding sleeve; 110. an inner wall through opening; 212. an outer sleeve; 120. radial through openings; 22. a base; 23. a flowable medium; 24. a liquid sealing retainer ring; 3. a trigger; 31. a first trigger; 32. a second trigger; 4. a seal ring; 5. a rubber cylinder; 6. a fracturing fluid channel; 71. an outer tube body; 72. an inner tube body; 8. and a fracturing fluid inlet and outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail with reference to fig. 1 to 8. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
The invention provides a switching sliding sleeve device for oil gas exploitation, an oil gas exploitation tool provided with the switching sliding sleeve device for oil gas exploitation and a switching method of the upper wall body through hole of the oil gas exploitation tool, wherein the switching operation steps of the switching of the upper wall body through hole of the outer barrel are simple and convenient, and the cost of manpower and material resources is low.
As shown in fig. 1 to 8, the switch sliding sleeve device for oil and gas exploitation provided by the invention comprises an outer barrel 1, a switch sliding sleeve mechanism 2 and a trigger body 3, wherein:
The wall of the outer cylinder 1 is provided with a wall body through hole 10 which can be communicated with an internal fluid channel 11 of the outer cylinder 1 and the outside of the outer cylinder 1, and the switch sliding sleeve mechanism 2 is arranged at the inner side of the outer cylinder 1;
the axial lead extending direction of the central hole of the switch sliding sleeve mechanism 2 is coincident with or parallel to the axial lead extending direction of the outer cylinder 1;
When the trigger body 3 is put into the outer cylinder 1 and the trigger switch sliding sleeve mechanism 2 is stamped, the switch sliding sleeve mechanism 2 can be switched from a state of opening the wall body through hole 10 to a state of closing the wall body through hole 10 until the trigger body 3 or the other trigger body 3 is triggered again, and then is switched from a state of closing the wall body through hole 10 to a state of opening the wall body through hole 10; or when the trigger body 3 is put into the outer cylinder 1 and the trigger switch sliding sleeve mechanism 2 is stamped, the switch sliding sleeve mechanism 2 can be switched from a state of closing the wall body through hole 10 to a state of opening the wall body through hole 10, and then is switched from a state of opening the wall body through hole 10 to a state of closing the wall body through hole 10 until the trigger body 3 or the other trigger body 3 is triggered again.
According to the invention, the on-off state of the through hole 10 of the upper wall body of the outer cylinder 1 can be switched by only throwing two or two triggering bodies 3, so that the complicated and complicated operation of throwing a special hooking tool to lift the pipe column and pulling the sliding sleeve 21 in the prior art is omitted, the cooperative operation of a plurality of people is not needed, and the cost of the special hooking tool is saved.
As a preferred or alternative embodiment, the number of triggering bodies 3 is more than two, wherein: the first trigger 3 to be released is a first trigger 31, the second trigger 32 is a second trigger 3, and the first trigger 31 and/or the second trigger 32 are/is made of a dissolvable or degradable material. The first trigger 31 and the second trigger 32 are preferably both made of a material that is soluble or degradable in water.
As a preferred or alternative embodiment, the first trigger 31 and/or the second trigger 32 are in the form of spheres, ellipsoids, cylindrical structures or truncated cones. The first trigger 31 and the second trigger 32 are preferably spheres, since spheres are convenient to put in and dissolve and degrade at a high rate.
As a preferred or alternative embodiment, the switching slide mechanism 2 comprises a slide 21, a seat 22 and a flowable medium 23, wherein: the seat body 22 is connected with the outer cylinder 1 or is of an integral structure; the sliding sleeve 21, the seat body 22 and the outer cylinder 1 form a liquid-sealed flowing medium accommodating chamber, or the switching sliding sleeve mechanism 2 also comprises a liquid-sealed baffle ring 24 which is connected to the inner side of the sliding sleeve in a liquid-sealed manner (through a sealing ring), and the sliding sleeve 21, the seat body 22, the outer cylinder 1 and the liquid-sealed baffle ring 24 form a liquid-sealed flowing medium accommodating chamber;
the flowable medium 23 fills the flowable medium accommodating chamber;
the sliding sleeve 21 comprises an inner sliding sleeve 211 (or called an inner sleeve) and an outer sliding sleeve 212 (or called an outer sleeve), and a radial through hole 120 is formed in the wall body of the outer sliding sleeve 212; wherein:
As a preferred or alternative embodiment, as shown in fig. 1 to 6, when the first trigger 31 is thrown into the outer cylinder 1 and the upstream end of one of the inner sliding sleeve 211 and the outer sliding sleeve 212 (the outer sliding sleeve 212 in fig. 1,2 and4, and the inner sliding sleeve 211 in fig. 3) is punched, the punched sliding sleeve 21 (the outer sliding sleeve 212 in fig. 1,2 and4, and the inner sliding sleeve 211 in fig. 3) in both the inner sliding sleeve 211 and the outer sliding sleeve 212 descends and pushes the non-punched sliding sleeve 21 (the inner sliding sleeve 211 in fig. 1,2 and4, and the outer sliding sleeve 212 in fig. 3) in the two through the flowable medium 23 to make the radial through hole 120 and the wall through hole 10 on the outer sliding sleeve 212 offset from each other or make the inner sliding sleeve 211 block the wall through hole 10 to close the wall through hole 10; when the second trigger 32 is put into the outer cylinder 1 and the other one (the inner slide 211 in fig. 1,2 and4, and the outer slide 212 in fig. 3) of the inner slide 211 and the outer slide 212 is punched, the punched slide 21 (the inner slide 211 in fig. 1,2 and4, and the outer slide 212 in fig. 3) descends and pushes the non-punched slide 21 (the outer slide 212 in fig. 1,2 and4, and the inner slide 211 in fig. 3) upward through the flowable medium 23 so that the radial through hole 120 and the wall through hole 10 on the outer slide 212 overlap, and the inner slide 211 exposes the radial through hole 120 and the wall through hole 10 on the outer slide 212 to open the wall through hole 10.
As a preferable or alternative implementation mode, a radial through hole is arranged on the wall body of the outer sliding sleeve, when one of the first trigger and the second trigger is put into the outer cylinder and the upstream end of one of the inner sliding sleeve and the outer sliding sleeve is punched, the punched sliding sleeve in the inner sliding sleeve and the outer sliding sleeve descends and pushes the radial through hole and the wall body through hole on the outer sliding sleeve to overlap through the flowable medium, the inner sliding sleeve exposes the radial through hole and the wall body through hole on the outer sliding sleeve to open the wall body through hole, and when the other one of the first trigger and the second trigger is put into the outer cylinder and the other one of the inner sliding sleeve and the outer sliding sleeve is punched, the punched sliding sleeve descends and pushes the radial through hole and the wall body through hole on the outer sliding sleeve to be staggered with each other or the inner sliding sleeve shields the wall body through hole to close the wall body through the flowable medium.
As a preferred or alternative embodiment, as shown in fig. 5 and 6, when one of the first trigger 31 and the second trigger 32 is put into the outer cylinder 1 and the upstream end of the inner sliding sleeve 211 is punched, the inner sliding sleeve 211 descends to close the wall through hole 10, and during the descending process, the inner sliding sleeve 211 pushes the outer sliding sleeve 212 upward through the flowable medium, and when the other of the first trigger 31 and the second trigger 32 is put into the outer cylinder 1 and the outer sliding sleeve 212 is punched, the punched outer sliding sleeve 212 descends and pushes the inner sliding sleeve 211 upward through the flowable medium 23 to expose the wall through hole 10 to open the wall through hole 10.
The closing operation of the wall through hole 10 can be realized by throwing the first trigger 31, and the opening operation of the wall through hole 10 can be realized by the second trigger 32. Of course, the first trigger 31 and the second trigger 32 may be designed to be interchangeable.
In a preferred or alternative embodiment, the upstream end port size of the outer sleeve 212 is greater than the upstream end port size of the inner sleeve 211; the first trigger 31 and the second trigger 32 are spheres and the diameter of the first trigger 31 is different from the diameter of the second trigger 32. The operators of the trigger bodies 3 with different sizes are not easy to take the trigger bodies by mistake, and the misoperation is not easy to occur.
As a preferred or alternative embodiment, one of the first trigger and the second trigger is only matched with the shape of the outer sliding sleeve and can only drive the outer sliding sleeve matched with the one to move downwards, and the other one of the first trigger and the second trigger is only matched with the shape of the inner sliding sleeve and can only drive the inner sliding sleeve matched with the other one to move downwards.
As a preferred or alternative embodiment, the flowable medium 23 is hydraulic oil, water or particles having flowability, preferably hydraulic oil. The hydraulic oil has relatively good stability and lubricating properties, and is suitable as the flowable medium 23.
In a preferred or alternative embodiment, the upstream ends of the inner sliding sleeve 211 and the outer sliding sleeve 212 are respectively provided with an inner conical surface or are fixedly connected with ball seats provided with the inner conical surfaces, and the inner diameter sizes of the inner conical surfaces gradually decrease along the direction from upstream to downstream. On the one hand, the contact area between the inner conical surface and the trigger body 3 of the sphere structure is large, on the other hand, the trigger can better transfer the impact force, on the other hand, the respective upstream ends of the inner sliding sleeve 211 and the outer sliding sleeve 212 are not easy to smash, on the other hand, the trigger is dissolved, the upstream and the downstream of the respective upstream ends of the inner sliding sleeve 211 and the outer sliding sleeve 212 can be separated before degradation, and the exploitation of oil gas is facilitated.
The invention provides a method for controlling a hydraulic cavity to change a switch by pressing a throwing trigger body 3 (preferably throwing a ball), which is characterized in that the lower ends of an inner sleeve and an outer sleeve are respectively inserted into the same closed hydraulic cavity. Ball seats are respectively arranged at the upper ends of the inner sleeve and the outer sleeve. Are sealed with each other by a sealing ring 4. When the ball seat is arranged on the ball seat of the inner sleeve, the pressure forces the inner sleeve to move downwards, the lower end of the inner sleeve forces the hydraulic cavity to generate pressure, and the inner pressure of the hydraulic cavity pushes the outer sleeve to move upwards. When the ball seat is arranged on the outer sleeve, the pressure forces the outer sleeve to move downwards, the lower end of the outer sleeve forces the hydraulic cavity to generate pressure, and the hydraulic cavity pushes the inner sleeve to move upwards. By setting the attributes of different positions, the reciprocating motion of the sleeve can be reliably controlled through the trigger body 3, and the reciprocating motion among different attributes can be realized.
In a preferred or alternative embodiment, the outer slide sleeve 212 is provided with a stop flange which abuts the upstream end of the inner slide sleeve 211 when the outer slide sleeve 212 is lowered to a position closing the wall through hole 10. The stop flange can reduce the descending distance of the outer sliding sleeve 212, reduce the sliding travel of the outer sliding sleeve 212 in the switching process, and improve the response speed of the switch.
As a preferable or alternative embodiment, the wall body on the inner sliding sleeve 211 is provided with an inner wall through hole 110, when the radial through hole 120 on the outer sliding sleeve 212, the inner wall through hole 110 on the inner sliding sleeve 211 and the wall body through hole 10 are overlapped, the wall body through hole 10 is in an open state, and when the radial through hole 120 on the outer sliding sleeve 212, the inner wall through hole 110 on the inner sliding sleeve 211 and the wall body through hole 10 are staggered, the wall body through hole 10 is in a closed state. When the through holes 10 of the structural wall body are closed, a two-layer closed structure is formed, and the closing effect is better.
The oil gas exploitation tool provided by the embodiment of the invention comprises the switch sliding sleeve device for oil gas exploitation, which is provided by any technical scheme of the invention.
As a preferred or alternative embodiment, the hydrocarbon production tool is a sliding sleeve tool as shown in fig. 2-4 or a packer as shown in fig. 5, 6, wherein:
The packer comprises a rubber cylinder 5 and a fracturing fluid channel 6, wherein the fracturing fluid channel 6 is preferably formed by a gap between an outer pipe body 71, an inner pipe body 72, the rubber cylinder 5 and an outer cylinder 11, when a wall through hole 10 is in an open state, fracturing fluid in the inner fluid channel 11 of the outer cylinder 1 can flow out through the wall through hole 10 and the fracturing fluid channel 6 in sequence and push the rubber cylinder 5 to deform and be seated in a sleeve or an oil gas well where the packer is located, when the wall through hole 10 is in a closed state, the fracturing fluid in the fracturing fluid channel 6 can maintain the deformation and be seated in the sleeve or the oil gas well where the packer is located, and when the wall through hole 10 is in an open state again, the fracturing fluid in the fracturing fluid channel 6 flows into the inner fluid channel 11 of the outer cylinder 1 in sequence through the fracturing fluid channel 6 and the wall through hole 10 so as to enable the rubber cylinder 5 to recover the shape before being seated and release the seated.
The invention can be applied to sliding sleeve tools, and at the moment, holes are formed in the outer cylinder 1, so that the lower part of the outer cylinder is opened, and the upper part of the outer cylinder is closed. The switch of the sliding sleeve 21 can be controlled by different balls. The method can also be applied to a packer (such as a K441 packer) to enable the jacket to block the liquid inlet downwards and open the liquid inlet upwards. The setting and the unsetting of the packer can be controlled by throwing balls.
The method for opening and closing the through hole 10 of the wall body of the oil and gas exploitation tool provided by the embodiment of the invention comprises the following steps:
Step A: the triggering body 3 is put into the outer barrel 1 of the switching sliding sleeve device for oil and gas exploitation, and when the triggering body 3 is put into the outer barrel 1 and the triggering sliding sleeve mechanism 2 is stamped, the switching sliding sleeve mechanism 2 can be switched from a state of opening the wall body through hole 10 to a state of closing the wall body through hole 10; and (B) step (B): the trigger body 3 is put into the outer cylinder 1 again, and when the switch sliding sleeve mechanism 2 is triggered by the trigger body 3 or the other trigger body 3 again, the state of closing the wall body through hole 10 is switched to the state of opening the wall body through hole 10.
The method for opening and closing the through hole 10 of the wall body of the oil and gas exploitation tool provided by the embodiment of the invention comprises the following steps:
Step A: the triggering body 3 is put into the outer barrel 1 of the switching sliding sleeve device for oil and gas exploitation, and when the triggering body 3 is put into the outer barrel 1 and the triggering sliding sleeve mechanism 2 is stamped, the switching sliding sleeve mechanism 2 can be switched from a state of closing the wall body through hole 10 to a state of opening the wall body through hole 10; and (B) step (B): the trigger body 3 is put into the outer cylinder 1 again, and when the switch sliding sleeve mechanism 2 is triggered by the trigger body 3 or the other trigger body 3 again, the state of opening the wall body through hole 10 is switched to the state of closing the wall body through hole 10. In the initial state of the switch slide mechanism 2, the wall through hole 10 can be set manually in an open state or in a closed state.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (11)
1. The utility model provides an oil gas exploitation is with switch sliding sleeve device which characterized in that: comprises an outer cylinder, a switch sliding sleeve mechanism and a trigger body,
Wherein:
the wall body which can be communicated with the internal fluid channel of the outer cylinder and the outside of the outer cylinder is arranged on the wall of the outer cylinder
The switch sliding sleeve mechanism is arranged on the inner side of the outer cylinder;
The axial lead extending direction of the central hole of the switch sliding sleeve mechanism is coincident with or is equal to that of the outer cylinder
Parallel;
When the trigger body is put into the outer cylinder and the switch sliding sleeve mechanism is triggered by punching, the switch sliding sleeve mechanism can be used for controlling the switch sliding sleeve mechanism
Switching from a state of opening the wall body through hole to a state of closing the wall body through hole until receiving the trigger body or the trigger body again
When the other trigger body is triggered, the state of closing the wall body through hole is switched to the state of opening the wall body through hole;
or when the trigger body is put into the outer cylinder and the switch sliding sleeve mechanism is triggered by punching, the switch sliding sleeve mechanism
Can be switched from the state of closing the wall body through hole to the state of opening the wall body through hole until being subjected to the trigger body again
Or the other trigger body is switched from the state of opening the wall body through hole to the state of closing the wall body through hole when triggering
A state;
The number of the triggering bodies is more than two, wherein: the triggering body which is thrown in for the first time is a first triggering object, the triggering body which is thrown in again or the other triggering body is a second triggering object, and the first triggering object and/or the second triggering object are/is made of soluble or degradable materials;
The switch sliding sleeve mechanism comprises a sliding sleeve, a seat body and a flowable medium, wherein:
the seat body is connected with the outer cylinder or is of an integrated structure;
the sliding sleeve, the seat body and the outer cylinder form a liquid-tight flowing medium accommodating chamber;
The flowable medium is filled in the flowable medium accommodating cavity;
the sliding sleeve comprises an inner sliding sleeve and an outer sliding sleeve sleeved outside the inner sliding sleeve, wherein:
the wall body of the outer sliding sleeve is provided with a radial through hole, and the first trigger and the second trigger are arranged in the radial through hole
When being put into the outer cylinder and being stamped at the upstream end of one of the inner sliding sleeve and the outer sliding sleeve, the inner sliding sleeve
The punched sliding sleeve in the sleeve and the outer sliding sleeve descends and pushes the non-punched sleeve in the sleeve and the outer sliding sleeve through the fluid medium
The radial through holes on the outer sliding sleeve and the wall body through holes are staggered with each other or the inner sliding sleeve is blocked
The wall body through hole is used for closing the wall body through hole, and the other of the first trigger and the second trigger is put in
When the other one of the inner sliding sleeve and the outer sliding sleeve is stamped into the outer cylinder, the stamped sliding sleeve descends and
The radial through hole on the outer sliding sleeve and the wall body are driven by the flowing medium to push the non-punched sliding sleeve to move upwards
The through holes are coincided, the inner sliding sleeve exposes the radial through hole on the outer sliding sleeve and the wall body through hole to open the wall body
A through hole; or the wall body of the outer sliding sleeve is provided with a radial through hole, and the first trigger and the second trigger are both provided with
One of them is put into the outer cylinder and is stamped at the upstream end of one of the inner sliding sleeve and the outer sliding sleeve, when
The stamped sliding sleeve in the inner sliding sleeve and the outer sliding sleeve descends and is pushed by the flowable medium to be not in the inner sliding sleeve and the outer sliding sleeve
The punched sliding sleeve is arranged to enable the radial through hole on the outer sliding sleeve and the wall body through hole to coincide, and the inner sliding sleeve is exposed
The radial through hole on the outer sliding sleeve and the wall body through hole are used for opening the wall body through hole, and the first trigger is connected with the outer sliding sleeve
The other one of the second triggers is put into the outer cylinder and the other one of the second triggers is punched on the inner sliding sleeve and the outer sliding sleeve
At one time, the punched sliding sleeve descends and pushes the non-punched sliding sleeve to ascend through the flowable medium to slide outwards
The radial through hole on the sleeve and the wall body through hole are staggered with each other or the inner sliding sleeve shields the wall body through hole to close
The wall body is provided with a through hole.
2. The switching sleeve device for oil and gas exploitation according to claim 1, wherein: the switch sliding sleeve mechanism further comprises a liquid sealing baffle ring which is connected with the inner side of the sliding sleeve in a liquid sealing mode, and a liquid sealing flowing medium accommodating cavity is formed among the sliding sleeve, the seat body, the outer cylinder and the liquid sealing baffle ring.
3. The switching sleeve device for oil and gas exploitation according to claim 1, wherein: when one of the first trigger and the second trigger is put into the outer cylinder and the upstream end of the inner sliding sleeve is punched, the inner sliding sleeve can downwards close the wall body through hole, in the descending process, the inner sliding sleeve pushes the outer sliding sleeve to upwards move through the flowable medium, and when the other one of the first trigger and the second trigger is put into the outer cylinder and the outer sliding sleeve is punched, the outer sliding sleeve which is punched downwards moves and pushes the inner sliding sleeve which is not punched to upwards move through the flowable medium, so that the inner sliding sleeve is exposed out of the wall body through hole, and the wall body through hole is opened.
4. The switching sleeve device for oil and gas exploitation according to claim 1, wherein: said first trigger and +
Or the second trigger is in a sphere, an ellipsoid, a cylindrical structure or a truncated cone structure.
5. The switching sleeve device for oil and gas exploitation according to claim 1, wherein: the upstream end of the outer sliding sleeve
The port size is larger than the port size of the upstream end of the inner sliding sleeve, and the first trigger and the second trigger are spheres
And the diameter of the first trigger is different from the diameter of the second trigger; or the first trigger and
One of the second trigger is only matched with the shape of the outer sliding sleeve and can only drive the second trigger to be matched with the outer sliding sleeve
The outer sliding sleeve descends, and the other of the first trigger and the second trigger is only connected with the inner sliding sleeve
The shape of the inner sliding sleeve is matched with the shape of the outer sliding sleeve, and the inner sliding sleeve can only drive the inner sliding sleeve matched with the inner sliding sleeve to move downwards.
6. The switching sleeve device for oil and gas exploitation according to claim 1, wherein: the flowable medium is liquid
Pressurized oil, water or particles having fluidity; and/or the upstream ends of the inner sliding sleeve and the outer sliding sleeve are respectively provided with an inner cone
The surfaces are fixedly connected with ball seats provided with inner conical surfaces, and the inner diameter sizes of the inner conical surfaces are gradually changed from upstream to downstream
And is reduced in size.
7. The switching sleeve device for oil and gas exploitation according to claim 1, wherein: the outer sliding sleeve is provided with a stop
The position flange is arranged on the upper part of the inner sliding sleeve and is used for stopping the position of the outer sliding sleeve when the outer sliding sleeve descends to a position for closing the wall body through hole
The free ends are abutted; and/or the number of the groups of groups,
An inner wall through hole is formed in the wall body of the inner sliding sleeve, and a radial through hole is formed in the outer sliding sleeve and the inner sliding sleeve
When the inner wall through hole and the wall through hole are mutually overlapped, the wall through hole is in an open state, and the outer sliding sleeve is provided with
When the radial through hole, the inner wall through hole on the inner sliding sleeve and the wall through hole are staggered, the wall through hole is positioned
And a closed state.
8. An oil and gas extraction tool, characterized in that: comprising a switching sleeve for oil and gas exploitation according to any one of claims 1-7
And (3) a device.
9. The hydrocarbon production tool of claim 8, wherein: the oil and gas exploitation tool is a sliding sleeve tool or
A packer, wherein:
The packer comprises a rubber cylinder and a fracturing fluid channel, and when the wall body through hole is in an open state, the inner part of the outer cylinder
The fracturing fluid in the partial fluid channel can flow out through the wall body through holes and the fracturing fluid channel in sequence and push the glue
The cylinder is deformed and is sealed in a sleeve or an oil gas well where the packer is positioned, and when the wall body through hole is in a closed state, the wall body through hole is formed by
The fracturing fluid in the fracturing fluid channel can maintain the deformation of the rubber sleeve and is seated in the sleeve or the oil-gas well where the packer is positioned,
When the wall through hole is in an open state again, the fracturing fluid in the fracturing fluid channel sequentially passes through the fracturing fluid channel
And the wall body through hole flows into the internal fluid channel of the outer cylinder so as to restore the shape of the rubber cylinder before setting and release the rubber cylinder
And (5) setting.
10. A method of opening and closing a wall opening in an oil and gas production tool as claimed in claim 8 or 9, wherein: comprises the following steps
Step A, step B:
step A: releasing trigger into the outer barrel in the switch sliding sleeve device for oil and gas exploitation according to any one of claims 1-7
The triggering body is put into the outer cylinder and can press and trigger the switch sliding sleeve mechanism, and the switch sliding sleeve mechanism can be used for controlling the switch sliding sleeve mechanism
Switching from a state of opening the wall through hole to a state of closing the wall through hole; and (B) step (B): re-casting into the outer cylinder
The trigger body is put, and the switch sliding sleeve mechanism is closed again when being triggered by the trigger body or another trigger body
The state of the wall through hole is switched to the state of opening the wall through hole.
11. A method of opening and closing a wall opening in an oil and gas production tool as claimed in claim 8 or 9, wherein: comprises the following steps
Step A, step B:
Step A: a trigger body is put into the outer cylinder in the switch sliding sleeve device for oil and gas exploitation, and when the trigger body is put into the outer cylinder and the switch sliding sleeve mechanism is triggered by punching, the switch sliding sleeve mechanism can be closed
The state of the wall through hole is switched to the state of opening the wall through hole; and (B) step (B): putting trigger into the outer cylinder again
The switch sliding sleeve mechanism is triggered by the trigger body or the other trigger body again and then opens the wall body
And the state of the through hole is switched to the state of closing the wall through hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911102352.7A CN110685640B (en) | 2019-11-12 | 2019-11-12 | Switching sliding sleeve device for oil gas exploitation, oil gas exploitation tool and switching method of wall body through hole of oil gas exploitation tool |
| US17/083,563 US11608714B2 (en) | 2019-11-12 | 2020-10-29 | Switch sliding sleeve device for oil-gas exploitation and switching method thereof, oil-gas exploitation tool and switching method of wall through hole thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911102352.7A CN110685640B (en) | 2019-11-12 | 2019-11-12 | Switching sliding sleeve device for oil gas exploitation, oil gas exploitation tool and switching method of wall body through hole of oil gas exploitation tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110685640A CN110685640A (en) | 2020-01-14 |
| CN110685640B true CN110685640B (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911102352.7A Active CN110685640B (en) | 2019-11-12 | 2019-11-12 | Switching sliding sleeve device for oil gas exploitation, oil gas exploitation tool and switching method of wall body through hole of oil gas exploitation tool |
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| Country | Link |
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| CN (1) | CN110685640B (en) |
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| WO2012130144A1 (en) * | 2011-03-30 | 2012-10-04 | 克拉玛依特隆油田技术服务有限责任公司 | Hydraulically-controlled multi-switch valve and positioning instrument therefor |
| CN202140065U (en) * | 2011-07-11 | 2012-02-08 | 中国海洋石油总公司 | Hydraulic sliding sleeve |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110685640A (en) | 2020-01-14 |
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