CN109339724B - Mud and sand removing device for drilling fluid - Google Patents
Mud and sand removing device for drilling fluid Download PDFInfo
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- CN109339724B CN109339724B CN201811597020.6A CN201811597020A CN109339724B CN 109339724 B CN109339724 B CN 109339724B CN 201811597020 A CN201811597020 A CN 201811597020A CN 109339724 B CN109339724 B CN 109339724B
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- 238000005553 drilling Methods 0.000 title claims abstract description 69
- 239000012530 fluid Substances 0.000 title claims abstract description 64
- 239000004576 sand Substances 0.000 title claims abstract description 37
- 239000002002 slurry Substances 0.000 claims abstract description 63
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 239000007790 solid phase Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010297 mechanical methods and process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000003113 dilution method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
- E21B21/106—Valve arrangements outside the borehole, e.g. kelly valves
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- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Cyclones (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention relates to a mud and sand removing device for drilling fluid, belonging to the field of petroleum machinery. The device comprises a rotational flow desilter, a beaker, a valve, a collecting pipe, a desander slurry inlet pipe, a desander overflow pipe, a desilter slurry inlet pipe, a desilter overflow pipe, a vertical pipe support column, a small screen, a support pipe, a rotational flow desander, a vibrating screen, a stirring device and the like, wherein when the valve is opened, the drilling fluid in the collecting pipe flows into the beaker through the valve, so that the drilling fluid after desilting and desanding can be sampled conveniently to analyze the using effect of the drilling fluid desilting and desanding device; the structure is compact, and the cyclone sand remover and the cyclone mud remover are arranged in a centralized way, so that the waste solid phase of the treated drilling fluid is discharged in a centralized way, and the floor area of the device is saved; a vertical pipe is arranged in the cyclone desander, a small screen is arranged at the lower end of the vertical pipe, and the small screen filters the silt in the drilling fluid again, so that the cyclone desanding effect of the drilling fluid is enhanced; the small screen can be turned over in the vertical pipe to shake off the silt on the small screen.
Description
Technical Field
The invention relates to a mud and sand removing device for drilling fluid, belonging to the field of petroleum machinery.
Background
Solid particles in the mud drilling fluid are divided into harmful solid phases and useful solid phases, wherein detritus is the most main harmful solid phase in the mud drilling fluid, the density of the detritus is higher than that of other components in the drilling fluid, the physical properties of the drilling fluid are influenced in the whole drilling process, the density, viscosity, dynamic shear force, water loss, mud cakes, abrasiveness, viscosity and flow resistance of the drilling fluid are increased, the detritus can damage an oil-gas layer in the drilling process, the drilling speed is reduced, the torque of a rotary table is increased, drilling resistance is caused, adhesion and drilling sticking are caused, underground complex conditions such as well leakage, blowout and the like are caused, and meanwhile, the detritus in the mud drilling fluid can cause serious abrasion on a circulating system. In order to make mud drilling fluid recyclable, the harmful solid phase in the drilling fluid needs to be removed and the useful solid phase needs to be reserved by a solid control technology so as to meet the requirement of the drilling process on the performance of the drilling fluid. Common solid control technologies comprise a dilution method, an alternative method, a mechanical method and a chemical method, wherein the most economic and effective mode is the mechanical method, equipment generally adopted in the mechanical method comprises a vibrating screen, a sand remover, a mud remover and the like, but the sand remover and the mud remover are generally arranged in a dispersing way, harmful solid phases with different particle size ranges in the drilling fluid are treated, and the treated waste solid phases of the drilling fluid are respectively discharged in a dispersing way, so that the occupied area is large; secondly, the prior cyclone desander has low desanding efficiency; in addition, the drilling fluid after desilting and desanding is sampled periodically on site to analyze the use effect of the solid control equipment, so as to better control the performance and cost of the drilling fluid, therefore, how to provide a device for desilting and desanding the drilling fluid, which has a compact structure and high desanding efficiency and is convenient for sampling, is a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
In view of the above, the technical problems to be solved by the present invention are: how to provide a compact structure, high, the drilling fluid desilting sand removal device of being convenient for sample of desanding efficiency.
In order to achieve the purpose, the invention provides a mud and sand removing device for drilling fluid, which adopts the following technical scheme:
a mud and sand removing device for drilling fluid comprises a fixed support frame, a rotational flow mud remover, an electronic scale support, an electronic scale, a beaker, a valve, a collecting pipe, a third mud pipe, a second mud pipe, a fourth mud pipe, a mud remover slurry inlet pipe, a sand remover overflow pipe, a mud remover slurry inlet pipe, a mud remover overflow pipe, a first mud pipe, a large support plate, a vertical pipe support column, a first support column, a small screen, a second support column, a support pipe, a rotational flow sand remover, a vibrating screen and a stirring device, wherein the vibrating screen comprises a spring, a fixed column, a base, a screen support plate, a vibrating box body, a vibrating motor, a motor support frame, an upper screen and a lower screen, the stirring device comprises an impeller shaft fixing rod, an impeller shaft and an impeller, the lower end of the collecting pipe is provided with a connecting pipe, the valve plays a role of opening and closing, and the upper end of the valve is connected with the connecting pipe of the, the device is used for controlling whether drilling fluid in a collecting pipe flows to a beaker below the collecting pipe or not, the beaker is arranged on an electronic scale, the electronic scale is arranged in a shallow groove on the upper end surface of a support of the electronic scale, four impeller shaft fixing rods are arranged, one end of each impeller shaft fixing rod is fixedly connected with the inner wall of the collecting pipe, the other end of each impeller shaft fixing rod is fixedly connected with an impeller shaft so as to fix the impeller shaft in the collecting pipe, the impellers are rotatably arranged on the impeller shaft, four springs are arranged, the upper ends of the springs are arranged on an L-shaped plate on one side of a vibration box body, the lower ends of the springs are fixed on a cylinder on the upper end of the base, the fixing support frames stretch across the base, two screen support plates are symmetrically fixedly connected on the inner side surface of the vibration box body, the outer side surface of each screen support, the mesh of the upper screen is larger than that of the lower screen, the vibrating motor is fixed on a motor support frame, the motor support frame is fixedly connected on a vibrating box body, the large support plate is fixed on a fixed support frame, the third slurry pipe, the second slurry pipe, the fourth slurry pipe and the first slurry pipe are all fixed on the fixed support frame, two cyclone desanders are arranged, the first slurry pipe is fixedly connected with a desander slurry inlet pipe, one side of each cyclone desander is connected with the desander slurry inlet pipe, the upper end of each cyclone desander is connected with a desander overflow pipe, the number of the cyclone desanders is eight, the cyclone desanders are distributed on two sides of the second slurry pipe, the lower end of the second slurry pipe is fixedly connected with two desander overflow pipes, two sides of the second slurry pipe are fixedly connected with four desander slurry inlet pipes, the third slurry pipe and the fourth slurry pipe are symmetrically arranged on two sides of the second slurry pipe, one side of each cyclone desilter is connected with the corresponding to the corresponding desilter slurry inlet pipe, the upper end of the third slurry pipe is connected with the mud remover overflow pipe, the lower end of the third slurry pipe is fixedly connected with four mud remover overflow pipes, the lower end of the fourth slurry pipe is fixedly connected with four mud remover overflow pipes, the collecting pipe is connected with the third slurry pipe and the fourth slurry pipe so as to collect slurry in the third slurry pipe and the fourth slurry pipe into the collecting pipe, the upper end of the vertical pipe is clamped on the cyclone sand remover, four vertical pipe supporting columns are arranged, one end of each vertical pipe supporting column is fixedly connected to the inner wall of the cyclone sand remover, the end face of the other end of each vertical pipe supporting column is an arc face and is completely attached to the outer wall face of the vertical pipe, the small screen is horizontally installed on the vertical pipe through the first supporting column and the second supporting column, the outer diameter of the small screen is slightly smaller than the inner diameter of the vertical pipe, the second supporting column is inserted into the supporting pipe, and the supporting.
Preferably, the cyclone desander comprises a desander body, a first through hole, a second groove and a third groove, wherein the four third grooves are circumferentially distributed at the upper end of the desander body, the first through hole and the second through hole are coaxial at the lower end of the desander body, and the two second grooves are symmetrically arranged on the hole wall of the second through hole.
Preferably, the vertical pipe comprises a vertical pipe main body, a limiting protrusion, a round angle, a vertical pipe lifting column and a third through hole, the two third through holes are symmetrically formed in the lower portion of the vertical pipe main body, the four vertical pipe lifting columns are evenly distributed on the upper end face of the vertical pipe main body, the limiting protrusion is fixedly connected to the vertical pipe lifting columns, the round angle is formed in the limiting protrusion, the limiting protrusion is clamped in the third groove, the vertical pipe lifting columns are made of elastic materials, the two circular grooves are symmetrically formed in the outer frame of the small screen, one end of the first supporting column penetrates through the first through hole and the third through hole in sequence and is inserted into the circular groove in the outer frame of the small screen and is in interference fit with the circular groove, and the other end of the first supporting column stretches out of the cyclone desander.
Preferably, the second support column includes that second support column body, second support column are protruding, the one end symmetry of second support column body is equipped with two second support column archs, and the other end passes second through-hole, third through-hole in proper order and inserts in the circular recess on the little screen cloth outline and interference fit with it, the second support column body is equipped with that the bellied one end of second support column stretches out the whirl desander.
Preferably, the supporting tube comprises a first supporting tube section, a second supporting tube section, first grooves and supporting tube protrusions, one end of the first supporting tube section is fixedly connected with the second supporting tube section, the inner diameters of the first supporting tube section and the second supporting tube section are equal, the two supporting tube protrusions are symmetrically arranged on the outer wall of the second supporting tube section, the two first grooves are symmetrically arranged on the inner wall of the supporting tube, the second supporting tube section is inserted into the second through hole, the supporting tube protrusions are matched with the second grooves to prevent the supporting tube from rotating on the cyclone desander, the diameter of the first supporting tube section is larger than that of the second supporting tube section to prevent the supporting tube from completely entering the second through hole, and the first grooves are matched with the second supporting tube protrusions to prevent the second supporting tube and the supporting tube from.
The invention has the following advantages:
(1) the rotating impeller stirs the drilling fluid converged by the converging pipe, so that the solid phase in the drilling fluid is uniformly distributed; the valve is opened, the drilling fluid in the confluence pipe flows into the beaker through the valve, so that the drilling fluid after desilting and desanding can be sampled conveniently to analyze the using effect of the drilling fluid desilting and desanding device;
(2) the structure is compact, and the cyclone sand remover and the cyclone mud remover are arranged in a centralized way, so that the waste solid phase of the treated drilling fluid is discharged in a centralized way, and the floor area of the device is saved;
(3) a vertical pipe is arranged in the cyclone desander, a small screen is arranged at the lower end of the vertical pipe, and the small screen filters the silt in the drilling fluid again, so that the cyclone desanding effect of the drilling fluid is enhanced; the small screen can be turned over in the vertical pipe to shake off the silt on the small screen.
(4) The lower parts of the cyclone sand remover and the cyclone mud remover only need to be provided with a vibrating screen, the cost of the device is saved, the vibrating screen is provided with two layers of screen meshes, the screen mesh of the lower screen mesh is smaller than the screen mesh of the upper screen mesh positioned above the lower screen mesh, solid-phase particles contained in the underflow of the cyclone sand remover are relatively larger, the solid-phase particles contained in the underflow of the cyclone mud remover are relatively smaller, the underflow of the cyclone sand remover is filtered by the upper screen mesh and the lower screen mesh, and the underflow opening of the cyclone mud remover only needs to be filtered by the lower screen mesh.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1: the invention has the overall structure schematic diagram;
FIG. 2: the first structure of the invention is shown schematically;
FIG. 3: a second structural schematic of the present invention;
FIG. 4: the third structure of the invention is schematic;
FIG. 5: the cross-sectional structure of the collecting pipe and the stirring device is shown schematically;
FIG. 6: the cyclone desander and the first sectional structure at the vertical pipe are schematic;
FIG. 7: the cyclone desander and the vertical pipe are in a second sectional structure schematic view;
FIG. 8: the cross-sectional structure of the small screen is schematic;
FIG. 9: the upper part of the cyclone desander is in a schematic sectional structure view;
FIG. 10: the invention relates to a schematic view of the lower section structure of a cyclone desander;
FIG. 11: the structure of the vertical pipe of the invention is shown schematically;
FIG. 12: the structure schematic diagram of the second support column of the invention;
FIG. 13: the first structure of the supporting tube is shown schematically;
FIG. 14: the second structure of the supporting tube is shown schematically.
Description of the symbols:
1. a spring, 2, a fixed column, 3, a base, 4, a fixed support frame, 5, a cyclone descaler, 6, a screen support plate, 7, a vibration box, 8, an electronic scale support, 9, an electronic scale, 10, a beaker, 11, a valve, 12, a manifold, 13, a third slurry pipe, 14, a second slurry pipe, 15, a fourth slurry pipe, 16, a vibration motor, 17, a motor support frame, 18, a desander slurry inlet pipe, 19, a desander overflow pipe, 20, a desander slurry inlet pipe, 21, a desander overflow pipe, 22, a first slurry pipe, 23, an impeller shaft fixing rod, 24, an impeller shaft, 25, an impeller, 26, an upper screen, 27, a lower screen, 28, a large support plate, 29, a vertical pipe, 30, a vertical pipe support column, 31, a first support column, 32, a small screen, 33, a second support column, 34, a support pipe, 35, a cyclone desander, 2901, a vertical pipe body, 2902. spacing arch, 2903, fillet, 2904, vertical pipe carry post, 2905, third through-hole, 3301, second support column body, 3302, second support column arch, 3401, a stay tube section, 3402, stay tube second section, 3403, first recess, 3404, stay tube arch, 3501, desander body, 3502, first through-hole, 3503, second through-hole, 3504, second recess, 3505, third recess.
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.
The invention is further illustrated by the following figures and examples:
as shown in figures 1-14, the mud and sand removing device for drilling fluid comprises a fixed support frame 4, a cyclone mud remover 5, an electronic scale support 8, an electronic scale 9, a beaker 10, a valve 11, a collecting pipe 12, a third mud pipe 13, a second mud pipe 14, a fourth mud pipe 15, a sand remover slurry inlet pipe 18, a sand remover overflow pipe 19, a mud remover slurry inlet pipe 20, a mud remover overflow pipe 21, a first mud pipe 22, a large support plate 28, a vertical pipe 29, a vertical pipe support column 30, a first support column 31, a small screen 32, a second support column 33, a support pipe 34, a cyclone sand remover 35, a vibrating screen and a stirring device, wherein the vibrating screen comprises a spring 1, a fixed column 2, a base 3, a screen support plate 6, a vibrating box 7, a vibrating motor 16, a motor support frame 17, an upper screen 26 and a lower screen 27, the stirring device comprises an impeller shaft fixing rod 23, an impeller shaft 24, a lower screen 27 and a motor support rod, Impeller 25, the lower end of the collecting pipe 12 is provided with a connecting pipe, the valve 11 plays a role of opening and closing, the upper end of the valve is connected with the connecting pipe of the collecting pipe 12 and is used for controlling whether the drilling fluid in the collecting pipe 12 flows into the beaker 10 below the collecting pipe, the beaker 10 is arranged on the electronic scale 9, the electronic scale 9 is arranged in a shallow groove on the upper end surface of the electronic scale support 8 to prevent the electronic scale 9 from shaking on the electronic scale support 8, four impeller shaft fixing rods 23 are arranged, one end of each impeller shaft fixing rod is fixedly connected with the inner wall of the collecting pipe 12, the other end of each impeller shaft fixing rod is fixedly connected with the impeller shaft 24 so as to fix the impeller shaft 24 in the collecting pipe 12, the impeller 25 is rotatably arranged on the impeller shaft 24, the four springs 1 are arranged, the upper ends of the four springs are arranged on an L-shaped plate on, the two screen mesh supporting plates 6 are symmetrically and fixedly connected to the inner side surface of the vibrating box body 7, the outer side surface of each screen mesh supporting plate 6 is fixed on the vibrating box body 7 through four fixed columns 2 which are arranged at equal intervals, the upper screen mesh 26 is installed at the lower ends of the two screen mesh supporting plates 6, the lower screen mesh 27 is installed on the vibrating box body 7, the screen mesh of the upper screen mesh 26 is larger than that of the lower screen mesh 27, the vibrating motor 16 is fixed on a motor supporting frame 17, the motor supporting frame 17 is fixedly connected on the vibrating box body 7, the large supporting plate 28 is fixed on the fixed supporting frame 4, the third slurry pipe 13, the second slurry pipe 14, the fourth slurry pipe 15 and the first slurry pipe 22 are all fixed on the fixed supporting frame 4, the two cyclone desander 35 are arranged, the first slurry pipe 22 is fixedly connected with the desander slurry inlet pipe 18, one side of the cyclone desander 35 is connected with the desander slurry inlet pipe 18, the upper end of the cyclone desilter 5 is connected with a desander overflow pipe 19, eight cyclone desilters 5 are arranged and distributed on two sides of a second mud pipe 14, the lower end of the second mud pipe 14 is fixedly connected with two desander overflow pipes 19, two sides of the second mud pipe 14 are fixedly connected with four desilter slurry inlet pipes 20, a third mud pipe 13 and a fourth mud pipe 15 are symmetrically arranged on two sides of the second mud pipe 14, one side of the cyclone desilter 5 is connected with the desilter slurry inlet pipe 20, the upper end of the cyclone desilter 5 is connected with the desilter overflow pipe 21, the lower end of the third mud pipe 13 is fixedly connected with four desilter overflow pipes 21, the lower end of the fourth mud pipe 15 is fixedly connected with four desilter overflow pipes 21, the collecting pipe 12 is connected with the third mud pipe 13 and the fourth mud pipe 15 so as to collect the mud in the third mud pipe 13 and the fourth mud pipe 15 into the collecting pipe 12, the upper end of the vertical pipe 29 is clamped on a cyclone desilter 35, and the vertical pipe support column 30 is provided with four cyclone desilter pipes, one end of the small screen 32 is fixedly connected to the inner wall of the cyclone desander 35, the end face of the other end of the small screen is an arc surface and is completely attached to the outer wall surface of the vertical pipe 29, the small screen 32 is horizontally installed on the vertical pipe 29 through the first supporting column 31 and the second supporting column 33, the outer diameter of the small screen 32 is slightly smaller than the inner diameter of the vertical pipe 29, interference between the small screen 32 and the vertical pipe 29 in the overturning process is prevented, the second supporting column 33 is inserted into the supporting pipe 34, and the supporting pipe 34 is inserted into the cyclone desander 35.
The cyclone desander 35 comprises a desander body 3501, a first through hole 3502, a second through hole 3503, a second groove 3504 and a third groove 3505, wherein the upper end of the desander body 3501 is provided with four third grooves 3505 which are circumferentially distributed, the lower end of the desander body 3501 is provided with the first through hole 3502 and the second through hole 3503 which are coaxial, and the wall of the second through hole 3503 is provided with two second grooves 3504 which are symmetrically arranged.
The vertical pipe 29 comprises a vertical pipe main body 2901, a limiting protrusion 2902, a fillet 2903, vertical pipe lifting columns 2904 and third through holes 2905, two third through holes 2905 are symmetrically arranged below the vertical pipe main body 2901, four vertical pipe lifting columns 2904 are uniformly distributed on the upper end face of the vertical pipe main body 2901, the limiting protrusion 2902 is fixedly connected to the vertical pipe lifting columns 2904, the fillet 2903 is arranged on the limiting protrusion 2902, the limiting protrusion 2902 is clamped in a third groove 3505, the vertical pipe 29 is prevented from rotating and vertically moving in the cyclone sand remover 35, the vertical pipe lifting columns 2904 are made of elastic materials, the limiting protrusion 2902 can be separated from the third groove 3505 by bending the vertical pipe lifting columns 2904 inwards, the vertical pipe 29 is convenient to be taken out of the cyclone sand remover 35, two circular grooves are symmetrically arranged on the outer frame of the small screen 32, and one end of the first supporting column 31 sequentially penetrates through the first through hole 3502, and the first through hole 3502, The third through hole 2905 is inserted into the circular groove on the outer frame of the small screen 32 and is in interference fit with the circular groove, and the other end extends out of the cyclone desander 35.
The second support column 33 comprises a second support column body 3301 and second support column protrusions 3302, two second support column protrusions 3302 are symmetrically arranged at one end of the second support column body 3301, the other end of the second support column body penetrates through the second through hole 3503 and the third through hole 2905 in sequence and then is inserted into the circular groove on the outer frame of the small screen 32 and is in interference fit with the circular groove, and the cyclone sand remover 35 is extended out of one end of the second support column body 3301, which is provided with the second support column protrusions 3302.
The support tube 34 includes a support tube section 3401, a support tube section 3402, a first recess 3403, and a support tube protrusion 3404, one end of the support tube section 3401 is fixedly connected to the support tube section 3402, the inner diameters of the two are equal, two support tube protrusions 3404 are symmetrically arranged on the outer wall of the support tube section 3402, two first grooves 3403 are symmetrically arranged on the inner wall of the support tube 34, the support tube segments 3402 are inserted into the second through holes 3503, the support tube protrusions 3404 cooperate with the second grooves 3504 to prevent the support tube 34 from rotating on the desander 35, the support tube section 3401 has a diameter greater than the support tube section 3402, preventing the support tube 34 from passing entirely into the second through bore 3503, the first recess 3403 cooperates with the second support column protrusion 3302 to prevent the second support column 33 and the support tube 34 from rotating relative to each other, thereby preventing the small screen 32 from turning inside the vertical tube 29.
As shown in fig. 1-14, when the invention is used, a mud drilling fluid to be subjected to desilting and desanding is introduced into a first mud pipe 22, the drilling fluid in the first mud pipe 22 enters two cyclone desanders 35 through two desander slurry inlet pipes 18 respectively, the cyclone desander 35 separates the mud drilling fluid into a low-density overflow flow and a high-density underflow flow, the low-density overflow flow is filtered again by a small screen 32 arranged on a vertical pipe 29, the cyclone desanding effect of the drilling fluid is enhanced, the low-density overflow flow finally enters a second mud pipe 14 from an overflow port above the cyclone desander 35 through a desander overflow pipe 19, the high-density underflow flow is discharged from the lower end of the cyclone desander 35 and falls on an upper screen 26, and is screened out by the screening action of an upper screen 26 and a lower screen 27 of a vibrating screen to leave mud fluid and particles smaller than the meshes of the lower screen 27, the mud slurry and the particles smaller than the meshes of the lower screen 27 finally return to a mud circulating system, after the mud slurry and the particles smaller than the meshes of the lower screen 27 are used for a period of time, part of solid-phase particles can be accumulated on the lower end surface of the small screen 32, at the moment, the supporting pipe 34 can be pulled out, the second supporting column 33 and the first supporting column 31 are rotated, the small screen 32 is driven to turn over in the vertical pipe 29, mud and sand on the small screen 32 are shaken off, and then the supporting pipe 34 is installed again; the drilling fluid in the second mud pipe 14 enters the cyclone mud remover 5 through the mud remover slurry inlet pipe 20, the cyclone mud remover 5 separates the mud drilling fluid into low-density overflow and high-density underflow again, the low-density overflow of the cyclone mud remover 5 enters the third mud pipe 13 and the fourth mud pipe 15 through the mud remover overflow pipe 21, the drilling fluids in the third mud pipe 13 and the fourth mud pipe 15 converge through the converging pipe 12, the converged drilling fluid impacts the impeller 25, the impeller 25 rotates around the impeller shaft 24, the rotating impeller 25 stirs the converged drilling fluid to enable solid phases in the drilling fluid to be uniformly distributed, and the drilling fluid stirred by the impeller 25 finally enters a mud circulation system; when the drilling fluid after desilting and desanding needs to be sampled to analyze the using effect of the drilling fluid desilting and desanding device, the valve 11 is opened, the drilling fluid in the collecting pipe 12 flows into the beaker 10 through the valve 11, the valve 11 is closed when the drilling fluid in the beaker reaches the maximum scale value of the beaker, the electronic scale 9 weighs the weight of the beaker and the drilling fluid therein, the difference M-N between the mass M of the drilling fluid before desilting and desanding and the mass N after desilting and desanding in a unit volume (the maximum scale value of the beaker) is calculated, then the difference M-N is divided by the mass M of the drilling fluid before desilting and desanding in the unit volume (the maximum scale value of the beaker), and then the difference M-N is multiplied by 100% to calculate the percentage Q (M-N)/M-100%, and the Q value is used for primarily judging whether the desilting and desanding effects of the drilling fluid desilting and desanding device can meet the requirements or not, wherein the specification of the beaker can be selected according to the requirement; the high-density underflow of the cyclone desliming device 5 is discharged from the lower end of the cyclone desliming device 5 and falls on the lower screen mesh 27, the mud and sand in the high-density underflow of the cyclone desliming device 5 are screened out through the screening action of the vibrating screen, the mud liquid and the particles smaller than the mesh of the lower screen mesh 27 are left, and the mud liquid and the particles smaller than the mesh of the lower screen mesh 27 are finally returned to the mud circulating system; the lower parts of the cyclone desander 35 and the cyclone desilter 5 only need to be provided with one vibrating screen, the cost of the device is saved, the vibrating screen is provided with two layers of screen meshes, the screen mesh of the lower screen mesh 27 is smaller than the screen mesh of the upper screen mesh 26 positioned above the lower screen mesh, the solid phase particles contained in the underflow of the cyclone desander 35 are relatively large, the solid phase particles contained in the underflow of the cyclone desilter 5 are relatively small, the underflow of the cyclone desander 35 is filtered by the double-layer screen meshes of the upper screen mesh 26 and the lower screen mesh 27, and the underflow opening of the cyclone desilter 5 only needs to be filtered by the lower screen mesh 27.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a drilling fluid desilting sand removal device which characterized in that: the device comprises a fixed support frame, a rotational flow mud remover, an electronic scale support, an electronic scale, a beaker, a valve, a collecting pipe, a third mud pipe, a second mud pipe, a fourth mud pipe, a sand remover mud inlet pipe, a sand remover overflow pipe, a mud remover mud inlet pipe, a mud remover overflow pipe, a first mud pipe, a large support plate, a vertical pipe support column, a first support column, a small screen, a second support column, a support tube, a rotational flow sand remover, a vibrating screen and a stirring device, wherein the vibrating screen comprises a spring, a fixed column, a base, a screen support plate, a vibrating box body, a vibrating motor, a motor support frame, an upper screen and a lower screen, the stirring device comprises an impeller shaft fixing rod, an impeller shaft and an impeller, the lower end of the collecting pipe is provided with a connecting pipe, the valve plays a role of opening and closing, the upper end of the valve is connected with the connecting pipe of the collecting pipe and is used for controlling whether drilling fluid in the collecting, the beaker is arranged on the electronic scale, the electronic scale is arranged in a shallow groove on the upper end surface of a support of the electronic scale, four impeller shaft fixing rods are arranged, one end of each impeller shaft fixing rod is fixedly connected with the inner wall of a collecting pipe, the other end of each impeller shaft fixing rod is fixedly connected with an impeller shaft so as to fix the impeller shaft in the collecting pipe, the impeller is rotatably arranged on the impeller shaft, four springs are arranged, the upper ends of the springs are arranged on an L-shaped plate on one side of the vibration box body, the lower ends of the springs are fixed on a cylinder on the upper end of the base, the fixing support frames cross over the base, two screen support plates are symmetrically and fixedly connected on the inner side surface of the vibration box body, the outer side surface of each screen support plate is fixed on the vibration box body through four fixing columns which are arranged at equal intervals, the upper screen, the vibrating motor is fixed on a motor support frame, the motor support frame is fixedly connected on a vibrating box body, the large support plate is fixed on a fixed support frame, the third slurry pipe, the second slurry pipe, the fourth slurry pipe and the first slurry pipe are all fixed on the fixed support frame, two cyclone desander are arranged, the first slurry pipe is fixedly connected with a desander slurry inlet pipe, one side of the cyclone desander is connected with the desander slurry inlet pipe, the upper end of the cyclone desander is connected with a desander overflow pipe, the number of the cyclone desander is eight, the cyclone desander is distributed on two sides of the second slurry pipe, the lower end of the second slurry pipe is fixedly connected with two desander overflow pipes, two sides of the second slurry pipe are fixedly connected with four desander slurry inlet pipes, the third slurry pipe and the fourth slurry pipe are symmetrically arranged on two sides of the second slurry pipe, one side of the cyclone desander is connected with the desander slurry inlet pipe, and the upper end of the cyclone desilter overflow pipe is connected with the desilter overflow pipe, the lower extreme of third mud pipe links firmly four deslimer overflow pipes, the lower extreme of fourth mud pipe links firmly four deslimer overflow pipes, the collecting pipe is connected with third mud pipe, fourth mud union coupling to with the intraductal mud of third mud pipe, fourth mud collection pipe, the upper end card of vertical pipe is on the cyclone desander, vertical pipe support column is equipped with four, and its one end links firmly on the cyclone desander inner wall, and the terminal surface of the other end is the arc surface, laminates with the outer wall of vertical pipe completely, little screen cloth passes through first support column and second support column horizontal installation on vertical pipe, the external diameter of little screen cloth slightly is less than the internal diameter of vertical pipe, the second support column inserts in the supporting pipe, the stay tube is inserted on the cyclone.
2. The mud and sand removing device for drilling fluid according to claim 1, wherein: the cyclone desander comprises a desander body, a first through hole, a second groove and a third groove, wherein the four third grooves distributed circumferentially are arranged at the upper end of the desander body, the first through hole and the second through hole which are coaxial are arranged at the lower end of the desander body, and the two second grooves which are symmetrically arranged are arranged on the hole wall of the second through hole.
3. A device for removing mud and sand from drilling fluid according to claim 1 or 2, wherein: the vertical pipe comprises a vertical pipe main body, a limiting protrusion, a round angle, a vertical pipe lifting column and a third through hole, wherein the two third through holes are symmetrically arranged below the vertical pipe main body, the four vertical pipe lifting columns are uniformly distributed on the upper end face of the vertical pipe main body, the limiting protrusion is fixedly connected to the vertical pipe lifting columns, the round angle is arranged on the limiting protrusion, the limiting protrusion is clamped in the third groove, the vertical pipe lifting columns are made of elastic materials, two circular grooves are symmetrically arranged on the outer frame of the small screen, one end of the first supporting column is inserted into the circular groove in the outer frame of the small screen after sequentially passing through the first through hole and the third through hole and is in interference fit with the circular groove, and the other end of the first supporting column stretches out of the cyclone desander.
4. The mud and sand removing device for drilling fluid as claimed in claim 2, wherein: the second support column comprises a second support column body and a second support column protrusion, wherein the two second support column protrusions are symmetrically arranged at one end of the second support column body, the other end of the second support column body penetrates through the second through hole and the third through hole in sequence and then is inserted into the circular groove in the outer frame of the small screen and is in interference fit with the circular groove, and the second support column body is provided with one end of the second support column protrusion and stretches out of the cyclone desander.
5. The mud and sand removing device for drilling fluid as claimed in claim 4, wherein: the utility model discloses a cyclone sand remover, including the support tube, the support tube is including support tube one section, support tube two sections, first recess, support tube arch, one section one end of support tube links firmly with the support tube two sections, and the internal diameter between them equals, the symmetry is equipped with two support tube archs on the outer wall of support tube two sections, the symmetry is equipped with two first recesses on the inner wall of support tube, the support tube two sections are inserted in the second through-hole, the cooperation of second recess and support tube arch prevents that the support tube from rotating on the cyclone sand remover, one section external diameter of support tube is greater than the external diameter of support tube two sections, prevents that the support tube from all getting into in the second through-hole, the cooperation of first recess and second support column arch prevents to take place rotation between second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597020.6A CN109339724B (en) | 2018-12-26 | 2018-12-26 | Mud and sand removing device for drilling fluid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597020.6A CN109339724B (en) | 2018-12-26 | 2018-12-26 | Mud and sand removing device for drilling fluid |
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| CN109339724B true CN109339724B (en) | 2020-03-03 |
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| CN201811597020.6A Expired - Fee Related CN109339724B (en) | 2018-12-26 | 2018-12-26 | Mud and sand removing device for drilling fluid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109779546B (en) * | 2019-03-19 | 2024-06-04 | 核工业二0三研究所 | Uranium ore green investigation drilling fluid while-drilling treatment equipment and method |
| CN109973030A (en) * | 2019-05-22 | 2019-07-05 | 成都西部石油装备股份有限公司 | A kind of desanding desilts integrated apparatus and cleaner |
| CN111608604A (en) * | 2020-05-21 | 2020-09-01 | 博科丝特工业技术(江苏)有限公司 | Novel oil is desilter for solid accuse equipment |
| CN116641668B (en) * | 2023-07-27 | 2023-10-24 | 大庆辰平钻井技术服务有限公司 | Drilling fluid circulating sand removal equipment and horizontal well half-way well cementation completion method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8715506B2 (en) * | 2009-07-23 | 2014-05-06 | National Oilwell Varco, L.P. | Apparatus and method for density separator for drilling fluid |
| CN202645476U (en) * | 2011-12-30 | 2013-01-02 | 新疆地质矿产勘查开发局第九地质大队 | Slurry purifying sand removing device |
| CN105735922A (en) * | 2016-02-17 | 2016-07-06 | 成都高峰石油机械有限公司 | Grit catcher used for oil blowout pipeline |
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