CN113047805B - Self-sealing type oil field packer for oil field exploitation - Google Patents
Self-sealing type oil field packer for oil field exploitation Download PDFInfo
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- CN113047805B CN113047805B CN202110557362.0A CN202110557362A CN113047805B CN 113047805 B CN113047805 B CN 113047805B CN 202110557362 A CN202110557362 A CN 202110557362A CN 113047805 B CN113047805 B CN 113047805B
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- sliding sleeve
- packer
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- upper portion
- outer tube
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- 238000007789 sealing Methods 0.000 title claims abstract description 62
- 238000012856 packing Methods 0.000 claims abstract description 30
- 238000010030 laminating Methods 0.000 claims description 5
- 239000003129 oil well Substances 0.000 description 25
- 230000000694 effects Effects 0.000 description 5
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
- E21B33/1285—Packers; Plugs with a member expanded radially by axial pressure by fluid pressure
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- Life Sciences & Earth Sciences (AREA)
- 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)
- Earth Drilling (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention provides a self-sealing type oil field packer for oil field exploitation, and relates to the field of oil field packers. This proclaim oneself type oil field packer of oil field exploitation, including center tube and last sealing member, center tube upper portion pipe wall evenly distributed has the spout, the interior circumference of sliding of outer tube upper portion is provided with the sliding sleeve down, the upper portion of sliding sleeve slides and sets up at the interior circumference of the lower part of last outer tube, the interior circumference of sliding sleeve upper end is provided with spacing draw-in groove, upper portion periphery is provided with the packing element in the sliding sleeve, outer tube bottom evenly distributed has logical groove down, center tube bottom periphery evenly distributed has the third spring, go up sealing member top fixedly connected with screw post, go up sealing member lower extreme fixedly connected with seal pin, go up sealing member middle part external diameter less than or equal to center tube internal diameter. Through the fixed setting of packer, make the packing element can fine use, avoid the packing element to lead to the leakproofness to disappear or warp because of pressure deformation, the packing element can used repeatedly, is worth wideling popularize.
Description
Technical Field
The invention relates to the technical field of oil field packers, in particular to a self-sealing oil field packer for oil field exploitation.
Background
The packer refers to a downhole tool which is connected to a downhole tubular column and used for packing an annular space between an oil pipe and an oil and gas well casing or an open hole well wall, when the annular space between the oil pipe and the oil and gas well casing or the open hole well wall needs to be packed, the packer is connected to the downhole tubular column, after the annular space reaches the designed depth, a packing part on the packer is expanded in a hydraulic driving mode and the like to pack the annular space between the oil casing and the annular space, and the packers with different forms have different starting modes and unpacking modes.
Present a lot of packers are more of a specified duration of service in the well, all use corresponding cutting device to cut the packer in the deblocking, although this operation can be very convenient deblocking oil well, but use consuming time power still to make the packer can not used repeatedly, consume the equipment, secondly present packer many cases all be direct directly with the direct extrusion of packer sealing packing element at the oil well inner wall, the packing element receives the power of each direction, it loses sealed effect to make its deformation very easily, still can make the packing element scrap simultaneously.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a self-sealing type oil field packer for oil field exploitation, which solves the problems that the existing oil field packer cannot be repeatedly used and easily loses the sealing effect.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a proclaim oneself type oil field packer for oil field exploitation, includes center tube and last sealing member, center tube upper portion periphery cover is equipped with the outer tube, center tube lower part periphery cover is equipped with lower outer tube, center tube upper portion pipe wall evenly distributed has the spout, the interior week slip of outer tube upper portion is provided with the sliding sleeve down, the upper portion slip of sliding sleeve sets up in the lower part of last outer tube is interior, the interior week of sliding sleeve upper end is provided with spacing draw-in groove, the upper portion periphery is provided with the packing element in the sliding sleeve, outer tube bottom evenly distributed has logical groove down, center tube bottom periphery evenly distributed has the third spring, go up sealing member top fixedly connected with screw post, go up sealing member lower extreme fixedly connected with seal pin, go up sealing member middle part external diameter less than or equal to center tube internal diameter.
Preferably, the connector is gone up to center tube upper end fixedly connected with, go up connector lower part external diameter and equal to the external diameter of last outer tube and go up connector lower part and last outer tube fixed connection, connector under the center tube lower extreme fixedly connected with, connector upper portion external diameter equals down outer tube external diameter and connector upper portion and lower outer tube fixed connection down.
Preferably, the inner side of the middle part of the upper outer tube is uniformly distributed with a limiting groove, the limiting groove is rotatably connected with a clamping block through a rotating shaft, one side of the upper part of the clamping block is connected with one side of the top wall of the limiting groove through a first spring, and the limiting groove is just opposite to the outer side of the sliding groove and the inner diameter of the limiting groove is equal to the inner diameter of the sliding groove.
Preferably, a pressure cavity is formed between the middle part and the central tube in the sliding sleeve, through holes are uniformly distributed in the side wall of the middle part of the central tube, and the through holes are communicated with the pressure cavity.
Preferably, the middle-lower part of the periphery of the pipe wall of the central pipe is uniformly distributed with limiting blocks, the middle-lower part of the inner wall of the sliding sleeve is uniformly distributed with mounting grooves, the limiting blocks are all arranged in the mounting grooves in a sliding manner, the tops of the limiting blocks are all fixedly connected to the lower ends of the second springs, and the upper ends of the second springs are all fixedly connected to the top wall in the mounting grooves.
Preferably, the through grooves are all rotatably connected with fixing rods through rotating shafts, the inner sides of the upper ends of the fixing rods are fixedly connected to one ends, away from the central tube, of the third springs, the fixing rods are all arranged in a V shape, and the outer sides of the lower portions of the fixing rods are fixedly connected with friction blocks.
Preferably, the bottom of the central tube is fixedly connected with a lower sealing element, the peripheries of the middle part of the upper sealing element and the periphery of the upper part of the lower sealing element are both provided with uniformly distributed helical teeth, and the bottom end of the sealing pin is circular.
Preferably, sliding sleeve upper portion periphery fixedly connected with clamping ring, the lower part laminating of clamping ring is at the packing element top.
The working principle is as follows: when the packer is used, firstly, the upper connector is connected with the lower end of an upper oil pipe, the lower connector is connected with the upper end of a lower oil pipe, then the packer is put into an oil well to be sealed, an upper sealing element is put into the oil pipe, a sealing pin of the upper sealing element is downward, the upper sealing element slowly falls into a central pipe, the lower end of the sealing pin is inserted into the lower sealing element, the helical teeth of the upper sealing element and the helical teeth of the lower sealing element are relatively overlapped, the sealing pin tightly seals the lower end of the central pipe, pressure is introduced into the central pipe from the oil pipe, a pressurizing device continuously pressurizes the central pipe through the oil pipe, the pressure enters a pressure cavity through a through hole, the pressure cavity enables a sliding sleeve to downwards move around the central pipe, when the sliding sleeve downwards moves, the lower part of the sliding sleeve is obliquely arranged, the upper part of a fixed rod is obliquely arranged, and the bottom of the sliding sleeve enables the upper part of the fixed rod to inwards move, the friction block at the lower part of the fixed rod is pushed out by the fixed rod, along with the superposition of the sliding sleeve and the fixed rod, the friction block is tightly attached to the inner wall of the oil well, the packer is fixed in the oil well, the rubber cylinder cannot deform due to the force outside the seal when being attached to the sealed oil well, the sealing effect of the rubber cylinder is good, the rubber cylinder is difficult to lose efficacy or scrap due to pressure deformation, when the sliding sleeve moves downwards, the sliding sleeve presses the rubber cylinder through the pressing ring, the middle part of the rubber cylinder expands to be tightly attached to the inner wall of the oil well, the sealing in the oil well is realized, the sliding sleeve slides downwards to a certain degree, the first spring pushes the clamping block to be clamped in the limiting clamping groove, the inner side of the clamping block extends into the central tube, the sliding sleeve is always in a downward state, the rubber cylinder is always sealed on the inner wall of the packer, the friction block is always fixed in the oil well to avoid the deformation of the rubber cylinder during sealing, and when the packer needs to be unpacked, let in the thread bush that can threaded connection on the screw post from the central tube, take out seal pin from lower sealing member afterwards, go up the sealing member and need pass through the central tube when taking out, when shifting up, go up the sealing member with the one end jack-up of fixture block in the central tube, make the fixture block break away from spacing draw-in groove, second spring promotion sliding sleeve rebound above the stopper at this time, the third spring promotes the fixed link and drives the friction piece and resets, the sliding sleeve does not give pressure to the packing element, the packing element resumes deformation, thereby can be fine with the packer deblocking and take out, the packing element passes through the support of fixed link and friction piece, make the packing element can not suffer the damage when sealed, packing element after the deblocking can well use, be convenient for the used repeatedly of packing element, be worth widelyly promoting.
The invention provides a self-sealing type oil field packer for oil field exploitation. The method has the following beneficial effects:
1. according to the invention, one end of the clamping block in the central tube is jacked up through the upper sealing element, so that the clamping block is separated from the limiting clamping groove, the second spring pushes the sliding sleeve to move upwards through the limiting block, the third spring pushes the fixing rod to drive the friction block to reset, the sliding sleeve does not apply pressure to the rubber sleeve, and the rubber sleeve recovers deformation, so that the packer is unsealed and unfixed from the inner wall of the oil well, the packer can be well taken out, the rubber sleeve is supported by the fixing rod and the friction block, so that the rubber sleeve can only realize the outward expansion sealing effect and cannot be damaged, the rubber sleeve after being unsealed can be well used, the rubber sleeve can be conveniently reused, packer equipment is saved, and the unsealing is convenient.
2. According to the invention, the sliding sleeve moves downwards to realize that the friction block at the lower part of the fixed rod is pushed out by the fixed rod, and along with the superposition of the sliding sleeve and the fixed rod, the friction block is tightly attached to the inner wall of the oil well, so that the packer is fixed in the oil well, and the rubber cylinder is not deformed due to the force outside the sealing when being attached to the sealed oil well, so that the rubber cylinder has a good sealing effect, is not deformed and scrapped, and is worthy of great popularization.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional structural view of the present invention;
FIG. 3 is a perspective view of the upper seal of the present invention;
FIG. 4 is an enlarged view of FIG. 2 at A;
FIG. 5 is an enlarged view of FIG. 2 at B;
FIG. 6 is an enlarged view at C of FIG. 2;
FIG. 7 is an enlarged view of FIG. 2 at D;
FIG. 8 is a perspective view of a center tube of the present invention;
figure 9 is a perspective view of the sliding sleeve of the present invention.
Wherein, 1, connecting head; 2. an upper outer tube; 3. fixing the rod; 4. a through groove; 5. a lower connector; 6. a friction block; 7. a rubber cylinder; 8. a central tube; 9. a sliding sleeve; 10. a lower seal member; 11. helical teeth; 12. a threaded post; 13. a seal pin; 14. a first spring; 15. a chute; 16. a clamping block; 17. a limiting clamping groove; 18. a through hole; 19. a pressure chamber; 20. a limiting block; 21. a second spring; 22. a third spring; 23. a rotating shaft; 24. a lower outer tube; 25. mounting grooves; 26. pressing a ring; 27. an upper seal member; 28. a limiting groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-9, an embodiment of the present invention provides a self-sealing type oil field packer for oil field exploitation, which includes a central tube 8 and an upper sealing member 27, wherein an upper outer tube 2 is sleeved on an outer periphery of an upper portion of the central tube 8, a lower outer tube 24 is sleeved on an outer periphery of a lower portion of the central tube 8, sliding grooves 15 are uniformly distributed on a tube wall of the upper portion of the central tube 8, a sliding sleeve 9 is slidably disposed on an inner periphery of an upper portion of the lower outer tube 24, an upper portion of the sliding sleeve 9 is slidably disposed on an inner periphery of a lower portion of the upper outer tube 2, a limiting clamping groove 17 is disposed on an inner periphery of an upper end of the sliding sleeve 9, a rubber cylinder 7 is disposed on an outer periphery of an upper portion of the sliding sleeve 9, when the sliding sleeve 9 moves downward, the sliding sleeve 9 presses the rubber cylinder 7 by a pressing ring 26, a middle portion of the rubber cylinder 7 expands to be tightly attached to an inner wall of an oil well, so as to realize sealing in the oil well, through grooves 4 are uniformly distributed at a bottom of the lower outer tube 24, 8 bottom periphery evenly distributed of center tube has third spring 22, go up 27 top fixedly connected with threaded column 12 of sealing member, go up 27 lower extreme fixedly connected with seal pin 13 of sealing member, go up 27 middle part external diameters less than or equal to 8 internal diameters of center tube, the packer is when using, when needing the deblocking packer, let in the thread bush that can threaded connection above the threaded column 12 in the center tube 8, take out seal pin 13 from lower sealing member 10 afterwards, go up sealing member 27 when taking out and need pass through center tube 8, when shifting up, go up sealing member 27 with the one end jack-up of fixture block 16 in center tube 8, third spring 22 promotes 3 drive friction block 6 resets of dead lever, sliding sleeve 9 is not 7 pressures for the packing element, 7 recovery deformations of packing element, thereby can be fine with the packer deblocking and take out.
Go up 2 inboard evenly distributed in middle part of outer tube have a spacing groove 28, it is connected with fixture block 16 to rotate through pivot 23 in the spacing groove 28, fixture block 16 upper portion one side is connected in spacing groove 28 roof one side through first spring 14, spacing groove 28 all just equals the internal diameter of spout 15 to the internal diameter in the 15 outside of spout and spacing groove 28, sliding sleeve 9 lapse, first spring 14 promotes fixture block 16 block in spacing draw-in groove 17, the inboard of fixture block 16 all stretches into in the center tube 8, make sliding sleeve 9 be in decurrent state always, make packing element 7 seal at the oil well inner wall always, make rubbing block 6 make the packer fix in the oil well avoid packing element 7 to warp when sealed always.
Form pressure chamber 19 in the sliding sleeve 9 between middle part and the center tube 8, 8 middle part lateral wall evenly distributed of center tube have through-hole 18, through-hole 18 all communicates with pressure chamber 19, let in pressure from oil pipe to center tube 8 through supercharging device, supercharging device passes through oil pipe and lasts the pressurization to the center tube 8 in, pressure passes through-hole 18 and gets into in pressure chamber 19, 19 internal pressure of pressure chamber makes sliding sleeve 9 move down around center tube 8, principle through the linker, the removal that the pressure that makes in the center tube 8 oppresses sliding sleeve 9 from pressure chamber 19 and realizes sliding sleeve 9.
The well lower part evenly distributed of 8 pipe wall peripheries of center tube has stopper 20, lower part evenly distributed has mounting groove 25 in the sliding sleeve 9 inner wall, stopper 20 all slides and sets up in mounting groove 25, the equal fixed connection in second spring 21's in stopper 20's top lower extreme, the equal fixed connection in mounting groove 25 roof in second spring 21's upper end, make fixture block 16 break away from spacing draw-in groove 17, second spring 21 above the stopper 20 promotes sliding sleeve 9 rebound at this time, when the deblocking packer, after fixture block 16 breaks away from spacing draw-in groove 17, sliding sleeve 9 is through stopper 20 jack-up that makes progress by second spring 21, realize sliding sleeve 9's automatic re-setting, realize the deblocking of packer in the oil well, realize the restoration and the deformation that resumes of packing element 7.
Through all being connected with dead lever 3 through pivot 23 rotation in the groove 4, 3 upper end inboard equal fixed connection of dead lever is in the one end that third spring 22 kept away from center tube 8, dead lever 3 all sets up to the V-arrangement, 3 lower part outsides equal fixedly connected with clutch blocks 6 of dead lever, clutch blocks 6 can make metal friction device, also can use the clutch blocks 6 of rubber material, clutch blocks 6 are close to the oil well inner wall surface and all are provided with the point of friction, the fixed force of increase clutch blocks 6 and oil well inner wall, when sliding sleeve 9 moves down, sliding sleeve 9 lower part sets up for the slope, 3 upper portions of dead lever set up for the slope, 9 bottoms of sliding sleeve make 3 upper portions of dead lever move inwards, clutch blocks 6 of dead lever 3 lower part are released by dead lever 3, along with the coincidence of sliding sleeve 9 and dead lever 3, clutch blocks 6 close laminating is at the oil well inner wall, realize that the packer fixes inside the oil well, make packing element 7 can not cause packing element 7 to warp because of receiving the power outside sealing when laminating sealed oil well, make packing element 7 sealed effectual, it is difficult for the pressure warp and become invalid or scrap.
Bottom fixedly connected with lower seal 10 in center tube 8, the middle part periphery of going up sealing member 27 and the upper portion periphery of lower seal 10 all are provided with evenly distributed's skewed tooth 11, the bottom of seal pin 13 sets up to circular, drop into upper seal 27 from the oil pipe, seal pin 13 of upper seal 27 is downward, make upper seal 27 slowly fall into center tube 8, make seal pin 13 lower extreme insert down in sealing member 10, make simultaneously the skewed tooth 11 of upper seal 27 and the skewed tooth 11 of lower seal 10 coincide relatively, make seal pin 13 closely seal the lower extreme of center tube 8, seal pin 13 seals down sealing member 10 and realizes that center tube 8 lives well sealedly.
9 upper portion peripheries of sliding sleeve fixedly connected with clamping ring 26, the lower part laminating of clamping ring 26 is at packing element 7 top, through the support of dead lever 3 and clutch blocks 6 to the packer, makes packing element 7 can not suffer the damage in sealed, and packing element 7 after the deblocking can well use, the used repeatedly of packing element 7 of being convenient for.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A self-sealing oilfield packer for oilfield production, comprising a base pipe (8) and an upper seal (27), characterized in that: the upper outer tube (2) is sleeved on the periphery of the upper portion of the central tube (8), the lower outer tube (24) is sleeved on the periphery of the lower portion of the central tube (8), sliding grooves (15) are uniformly distributed on the tube wall of the upper portion of the central tube (8), a sliding sleeve (9) is arranged on the inner periphery of the upper portion of the lower outer tube (24) in a sliding mode, the upper portion of the sliding sleeve (9) is arranged on the inner periphery of the lower portion of the upper outer tube (2) in a sliding mode, limiting grooves (28) are uniformly distributed on the inner side of the middle portion of the upper outer tube (2), clamping blocks (16) are rotatably connected into the limiting grooves (28) through rotating shafts (23), one sides of the upper portions of the clamping blocks (16) are connected to one sides of the top walls of the limiting grooves (28) through first springs (14), the limiting grooves (28) are just opposite to the inner sides of the outer sides of the sliding grooves (15) and the limiting grooves (28) and are equal to the inner diameters of the sliding grooves (15), limiting grooves (17) are arranged on the inner periphery of the upper end of the sliding sleeve (9), rubber cylinders (7) are arranged on the outer portion of the middle upper portion of the sliding sleeve (9), the outer portion of the bottom of the central tube (24) are uniformly distributed, the central tube (4), the central tube (8), the through rotating shafts (4), the through rotating shafts (3), the fixing rods (3) are fixedly connected to one ends of the fixing rods (22), the fixing rods (8), the fixing rods (22) and far away from the fixing rods (8), the equal fixedly connected with clutch blocks (6) in dead lever (3) lower part outside, center tube (8) bottom periphery evenly distributed has third spring (22), go up sealing member (27) top fixedly connected with screw thread post (12), go up sealing member (27) lower extreme fixedly connected with seal pin (13), go up sealing member (27) middle part external diameter less than or equal to center tube (8) internal diameter, the well lower part evenly distributed of center tube (8) pipe wall periphery has stopper (20), lower part evenly distributed has mounting groove (25) in sliding sleeve (9) inner wall, stopper (20) all slide and set up in mounting groove (25), the equal fixed connection in the lower extreme of second spring (21) in top of stopper (20), the equal fixed connection in the mounting groove (25) roof in the upper end of second spring (21).
2. The self-sealing oilfield packer for oilfield production of claim 1, wherein: connector (1) on center tube (8) upper end fixedly connected with, go up connector (1) lower part external diameter and equal to the external diameter of last outer tube (2) and go up connector (1) lower part and last outer tube (2) fixed connection, connector (5) under center tube (8) lower extreme fixedly connected with, connector (5) upper portion external diameter equals outer tube (24) external diameter and connector (5) upper portion and outer tube (24) fixed connection down.
3. The self-sealing oilfield packer for oilfield production of claim 1, wherein: a pressure cavity (19) is formed between the middle part in the sliding sleeve (9) and the central pipe (8), through holes (18) are uniformly distributed in the side wall of the middle part of the central pipe (8), and the through holes (18) are communicated with the pressure cavity (19).
4. The self-sealing oilfield packer for oilfield production of claim 1, wherein: bottom fixedly connected with down sealing member (10) in center tube (8), the middle part periphery of going up sealing member (27) and the upper portion periphery of lower sealing member (10) all are provided with evenly distributed skewed tooth (11), the bottom of seal pin (13) sets up to circular.
5. The self-sealing oilfield packer for oilfield production of claim 1, wherein: sliding sleeve (9) upper portion periphery fixedly connected with clamping ring (26), the lower part laminating of clamping ring (26) is at packing element (7) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110557362.0A CN113047805B (en) | 2021-06-01 | 2021-06-01 | Self-sealing type oil field packer for oil field exploitation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110557362.0A CN113047805B (en) | 2021-06-01 | 2021-06-01 | Self-sealing type oil field packer for oil field exploitation |
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| CN113047805A CN113047805A (en) | 2021-06-29 |
| CN113047805B true CN113047805B (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110557362.0A Active CN113047805B (en) | 2021-06-01 | 2021-06-01 | Self-sealing type oil field packer for oil field exploitation |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4796707A (en) * | 1986-06-23 | 1989-01-10 | Baker Hughes Incorporated | Apparatus for setting, unsetting, and retrieving a packer or bridge plug from a subterranean well |
| CN206693997U (en) * | 2016-12-23 | 2017-12-01 | 中国石油天然气股份有限公司 | Oil field separates adopts technology tubular column |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3556212A (en) * | 1968-08-13 | 1971-01-19 | Baker Oil Tools Inc | Downhole disaster valve with dump unit |
| CN105464614B (en) * | 2015-12-16 | 2018-08-10 | 天津市龙新石油机械制造股份有限公司 | Step-by-step releasable flushing packer |
| CN105545255B (en) * | 2015-12-31 | 2018-05-04 | 中国石油天然气股份有限公司 | Novel long-acting oil-separating production pipe column for oil field |
| CN210948579U (en) * | 2019-12-04 | 2020-07-07 | 杨小栋 | Underground oil testing packer |
| CN111734340B (en) * | 2020-08-05 | 2020-11-06 | 东营市正能石油科技有限公司 | Integrated packer for oil field exploitation |
-
2021
- 2021-06-01 CN CN202110557362.0A patent/CN113047805B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4796707A (en) * | 1986-06-23 | 1989-01-10 | Baker Hughes Incorporated | Apparatus for setting, unsetting, and retrieving a packer or bridge plug from a subterranean well |
| CN206693997U (en) * | 2016-12-23 | 2017-12-01 | 中国石油天然气股份有限公司 | Oil field separates adopts technology tubular column |
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| CN113047805A (en) | 2021-06-29 |
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Effective date of registration: 20221104 Address after: 124000 Xinkai town project cluster, Dawa County, Panjin City, Liaoning Province Applicant after: PANJIN HENGAO RUIJIA INDUSTRIAL CO.,LTD. Address before: 257000 a-413, Hongji building, Huanghe Road, Dongying District, Dongying City, Shandong Province Applicant before: Dongying Haitian Automation Engineering Co.,Ltd. |
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