CN114941516B - Quick rotary extraction well completion tool and quick rotary extraction well completion method - Google Patents
Quick rotary extraction well completion tool and quick rotary extraction well completion method Download PDFInfo
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- CN114941516B CN114941516B CN202210627530.3A CN202210627530A CN114941516B CN 114941516 B CN114941516 B CN 114941516B CN 202210627530 A CN202210627530 A CN 202210627530A CN 114941516 B CN114941516 B CN 114941516B
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- slip
- pump
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000000605 extraction Methods 0.000 title claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000005086 pumping Methods 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 15
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 241000283074 Equus asinus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B33/127—Packers; Plugs with inflatable sleeve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
Abstract
The invention relates to the technical field of underground equipment, in particular to a rapid rotary pumping well completion tool and a rapid rotary pumping well completion method, wherein the rapid rotary pumping well completion tool comprises a pump seat and a limiter, the pump seat comprises a pump seat body, a pump seat shear pin, a pump seat slip seat, a pump seat slip, a pump seat cone, a rubber cylinder, a pump seat outer cylinder, a retaining assembly and a pump seat lower joint, the pump seat body comprises a large-diameter section, a cone section and a small-diameter section which are sequentially and fixedly installed together from top to bottom, and the cone section is in a round table shape with the upper part being large and the lower part being small; the latter procedure is as follows: (1) The limiter is put down by using a steel wire tool, and the upper end of a mandrel of the limiter is sequentially connected with a steel wire rope cap, a weighting rod, a chain type jar and a feeding connector of the limiter from top to bottom. The invention has reasonable and compact structure and convenient use, and the pump seat and the oil pipe annulus are sealed by sequentially putting the limiter and the pump seat into the well without lifting the original well pipe column, so that the invention has the characteristics of stability, reliability and high efficiency.
Description
Technical Field
The invention relates to the technical field of underground equipment, in particular to a rapid rotary extraction well completion tool and a rapid rotary extraction well completion method.
Background
In the initial development stage of the oil-gas well, the general stratum pressure is high, the reserves are high, most of the oil-gas well can be produced by self-injection, the lower oil sleeve annulus is sealed by the lower packer in the well completion, and stratum fluid flows out from the inside of the tubular column through the wellhead under the driving of the stratum pressure, so that the self-injection production is realized. With the extension of production time, formation pressure is reduced, the liquid column pressure of formation fluid to the ground is greater than formation pressure, the oil-gas well can not be produced by self-injection, and the formation fluid is required to be injected into the formation or injected with water for production or pumped to the ground by an oil-well pump. For the production of the original self-injection production well, the original well pipe column and the packer need to be lifted out of the wellhead, the oil pipe column comprising the oil pump seat is put in, and then the oil pump, the sucker rod and the like are put in, so that the rotary pumping operation is completed. And when the wellhead is put forward for the original well pipe column and the packer, overhaul operation is needed, labor and time are wasted, and the production cost is huge.
Disclosure of Invention
The invention provides a rapid rotary pumping well completion tool and a rapid rotary pumping well completion method, which overcome the defects of the prior art, and can effectively solve the problem that the production of a self-injection production well is changed into the production of an oil-well pump, and an original well string and a packer need to be lifted out of a wellhead.
One of the technical schemes of the invention is realized by the following measures: the quick rotary pumping well completion tool comprises a pump seat and a limiter, wherein the pump seat comprises a pump seat body, a pump seat shear pin, a pump seat slip seat, a pump seat slip, a pump seat cone, a rubber cylinder, a pump seat outer cylinder, a retaining component and a pump seat lower joint, the pump seat body comprises a large-diameter section, a cone section and a small-diameter section which are sequentially and fixedly installed together from top to bottom, the cone section is in a round table shape with a large upper part and a small lower part, the outer side of the lower end of the large-diameter section is fixedly provided with the pump seat slip seat through the pump seat shear pin, the lower end of the pump seat slip seat is positioned at the outer side of the upper part of the small-diameter section, the middle part of the pump seat slip seat is provided with at least two installation windows along the circumference at intervals, the pump seat slips are all installed in each installation window in a limiting mode, a cone pipe with the lower end located below the pump seat slips is arranged between the corresponding pump seat slips and the small-diameter section, the upper part of the cone pipe is in a round table shape with the upper part being small at the upper part and the lower part being large at the lower part, an upper taper hole is formed in the inner side of the upper part of the pump seat slips, a lower taper hole is formed in the inner side of the lower part of the pump seat slips, the lower taper hole is in a round table hole with the upper part being small and the lower part being large at the lower part, a pump seat outer cylinder is arranged on the outer side of the lower part of the small-diameter section corresponding to the position below the rubber cylinder, a pump seat lower joint is fixedly installed on the inner side of the lower end of the pump seat outer cylinder, and a stop assembly capable of preventing the pump seat body from ascending relative to the pump seat outer cylinder is arranged between the small-diameter section and the pump seat outer cylinder; the limiter comprises a limiter mandrel, a limiter outer barrel, limiter slips and an outer barrel seat, wherein the limiter mandrel is arranged on the outer side of the lower end of a pump seat body, the limiter mandrel comprises a large-diameter portion, a cone portion and a small-diameter portion which are sequentially and fixedly installed together from top to bottom, the cone portion is in a round table shape with the large upper portion and the small lower portion, the outer barrel seat is arranged on the outer side of the lower end of the small-diameter portion, the limiter outer barrel with the lower end being arranged on the upper end of the outer barrel seat is sleeved on the outer side of the cone portion, at least two installation holes are formed in the middle of the limiter outer barrel at intervals along the circumference, and the limiter slips are all installed in each installation hole in a limiting mode.
The following are further optimizations and/or improvements to one of the above-described inventive solutions:
the retaining assembly can comprise a locking cylinder, outer retaining teeth, inner retaining teeth and anti-rotation screws, wherein the locking cylinder is sleeved on the outer side of a small diameter section corresponding to the position above a lower joint of the pump seat, at least one group of inner retaining teeth are continuously arranged on the inner side of the locking cylinder from top to bottom, the inner retaining teeth are annular platforms with right-angled triangle cross sections, the annular platforms are narrow in upper part and wide in lower part, the outer retaining teeth matched with the inner retaining teeth are arranged on the outer side of the lower part of the small diameter section, and the outer retaining teeth are annular platforms with right-angled triangle cross sections, and are wide in upper part and narrow in lower part; the inner side of the locking cylinder is provided with an anti-rotation groove which is penetrated up and down, and the outer side of the pump seat outer cylinder corresponding to the position of the anti-rotation groove is provided with an anti-rotation screw with the inner end positioned in the anti-rotation groove.
The pump seat slip can further comprise a propping spring, an installation blind hole with an outward opening is formed in the middle of the pump seat slip, and the propping spring with the outer end propped against the pump seat slip barrel is arranged in the installation blind hole.
The stopper slip can comprise a slip part, a connecting part and a limiting part which are sequentially and fixedly installed together from top to bottom, wherein the mounting hole comprises an upper window and a lower window which are arranged at intervals from top to bottom, the slip part is positioned in the upper window, and the limiting part is positioned in the lower window.
The lower end surface of the limiting part can be a conical surface with a high inner side and a low outer side, and the lower side surface of the lower window can be a conical surface with a high inner side and a low outer side.
The second technical scheme of the invention is realized by the following measures: a fast rotary pumping well completion method using the fast rotary pumping well completion tool comprises the following steps:
(1) The limiter is put down by using a steel wire tool, and the upper end of a core shaft of the limiter is sequentially connected with a steel wire rope cap, a weighting rod, a chain type jar and a feeding connector of the limiter from top to bottom, so that the feeding connector of the limiter and the upper end of the core shaft of the limiter are fixedly installed together through a shear pin of the limiter;
(2) Lowering the steel wire, lifting the steel wire and standing until the designed depth is reached, and then quickly lowering the steel wire again to enable the cone part to push the stopper slips to expand in the radial direction, so that the slips part bites the inner wall of the oil pipe;
(3) The tension of the steel wire is reduced, the steel wire is slowly lifted, the chain type jar is pulled, the chain type jar is rapidly lowered and jarred downwards, so that the slip part is better meshed with the inner wall of the oil pipe, when the stopper slip can not move downwards, the shock is performed again, and the stopper shear pin is sheared to separate the stopper feeding joint from the stopper mandrel;
(4) Feeding the limiter into the connector to lift out of the wellhead, so that the limiter is left in the oil pipe, and the running operation of the limiter is finished;
(5) The pump seat is installed on the ground and together with the rod-type oil pump, the pump seat body slowly descends when the pump seat is conveyed and falls below the limiter, the pump seat body downwards extends to the limiter mandrel, when the suspended weight of the pumping rod pipe column descends, the lower part of the pump seat body is inserted into the limiter mandrel, and the upper end face of the limiter mandrel provides support for the lower connector of the pump seat;
(6) When the oil pumping rod drives the pump seat body to move downwards, the pump seat lower joint is kept motionless, the pump seat tile cylinder, the pump seat slip and the pump seat cone are fixed to move downwards along with the pump seat body, the rubber cylinder is compressed, the outer diameter of the rubber cylinder is enlarged until the rubber cylinder is clung to the inner wall of the oil pipe, and the annular sealing of the oil pipe and the pump seat is realized;
(7) With the increase of the downward force of the pump seat body, the rubber cylinder is compressed to the limit, the shear pin of the pump seat is sheared, and the cone section pushes out the pump seat slips to be clamped on the inner wall of the oil pipe, so that the seat seal of the pump seat is realized, and the downward operation of the pump seat is completed.
The invention has reasonable and compact structure and convenient use, and the original well pipe column is not required to be lifted by the stopper and the pump seat which are sequentially put in, the oil pump can be directly put in the original well oil pipe without the Feng Yuanjing packer, and the annular space between the pump seat and the oil pipe is sealed; the oil pump is arranged on the pump seat to finish the rotary pumping operation, and the rotary pumping device has the characteristics of stability, reliability and high efficiency.
Drawings
Fig. 1 is a schematic sectional front view of embodiments 1 to 5 of the present invention in use.
Fig. 2 is an enlarged schematic view of the structure at a of fig. 1.
Fig. 3 is a schematic front sectional view of the stopper in embodiment 6 of the present invention.
Fig. 4 is a schematic diagram showing a cross-sectional front view of a pump base in embodiment 6 of the present invention.
The codes in the drawings are respectively: 1 is a raw well oil pipe, 2 is a pump seat shear pin, 3 is a pump seat slip seat, 4 is a pump seat slip, 5 is a pump seat cone, 6 is a rubber cylinder, 7 is a pump seat outer cylinder, 8 is a pump seat lower joint, 9 is a large diameter section, 10 is a cone section, 11 is a small diameter section, 12 is a mounting window, 13 is a limiter outer cylinder, 14 is an outer cylinder seat, 15 is a large diameter part, 16 is a cone part, 17 is a small diameter part, 18 is a locking cylinder, 19 is an outer retaining tooth, 20 is an inner retaining tooth, 21 is a mounting blind hole, 22 is a jacking spring, 23 is a slip part, 24 is a connecting part, 25 is a limiting part, 26 is an upper window, 27 is a lower window, 28 is a limiter feeding joint, 29 is an oil pump, and 30 is a limiter shear pin.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention is further described below with reference to examples and figures:
example 1: as shown in figures 1 and 2, the quick rotary pumping well completion tool comprises a pump seat and a limiter, wherein the pump seat comprises a pump seat body, a pump seat shear pin 2, a pump seat slip 4 seat 3, a pump seat slip 4, a pump seat cone 5, a rubber cylinder 6, a pump seat outer cylinder 7, a retaining component and a pump seat lower joint 8, the pump seat body comprises a large-diameter section 9, a cone section 10 and a small-diameter section 11 which are sequentially and fixedly installed together from top to bottom, the cone section 10 is in a truncated cone shape with the upper part being big end down, the outer side of the lower end of the large-diameter section 9 is fixedly provided with the pump seat slip 4 seat 3 through the pump seat shear pin 2, the lower end of the pump seat slip 4 seat 3 is positioned at the outer side of the upper part of the small-diameter section 11, at least two installation windows 12 are circumferentially arranged at intervals in the middle of the pump seat slip 4 seat 3, a pump seat slip 4 is arranged in each mounting window 12 in a limiting manner, a cone pipe with the lower end positioned below the pump seat slip 4 is arranged between the corresponding pump seat slip 4 and the small diameter section 11, the upper part of the cone pipe is in a round table shape with the upper part being small at the upper part and the lower part being large at the lower part, an upper taper hole is arranged at the inner side of the upper part of the pump seat slip 4, the upper taper hole is in a round table hole with the upper part being large at the upper part and the lower part being small at the lower part, a pump seat outer cylinder 7 is arranged at the outer side of the lower part of the small diameter section 11 corresponding to the position below the rubber cylinder 6, a pump seat lower joint 8 is fixedly arranged at the inner side of the lower end of the pump seat outer cylinder 7, and a stopping component capable of preventing the pump seat body from ascending relative to the pump seat outer cylinder 7 is arranged between the small diameter section 11 and the pump seat outer cylinder 7; the limiter comprises a limiter mandrel, a limiter outer barrel 13, limiter slips and an outer barrel seat 14, wherein the limiter mandrel is arranged on the outer side of the lower end of a pump seat body, the limiter mandrel comprises a large-diameter portion 15, a cone portion 16 and a small-diameter portion 17 which are sequentially and fixedly installed together from top to bottom, the cone portion 16 is in a round table shape with the upper part being big-end-down, the outer barrel seat 14 is arranged on the outer side of the lower end of the small-diameter portion 17, the limiter outer barrel 13 with the lower end being arranged on the upper end of the outer barrel seat 14 in a sleeved mode is arranged on the outer side of the cone portion 16, at least two installation holes are formed in the middle of the limiter outer barrel 13 along the circumference at intervals, and the limiter slips are all installed in each installation hole in a limiting mode. In the use process, when the limiter is lowered, the limiter is lifted up by 5 meters after being lowered to the designed depth, then the limiter is placed still and then is lowered down quickly, at the moment, as the limiter slips and the limiter outer cylinder 13 are sleeved on the limiter mandrel, the speed difference is generated between the limiter outer cylinder 13 and the limiter slips and the limiter mandrel, the limiter slips are pushed to expand radially under the action of the cone part 16, so that the limiter slips are meshed with the inner wall of the oil pipe, and the limiter is clamped on the inner wall of the oil pipe; when the pump seat is lowered, after the lower end of the pump seat body is inserted into the core shaft of the limiter, the pump seat slip 4 seat 3 and the pump seat cone 5 compress the rubber cylinder 6 before the shear pin is sheared, so that the oil pipe and the pump seat annulus are sealed, and after the shear pin is sheared, the pump seat slip 4 is pushed to radially expand under the action of the cone section 10, so that the pump seat slip 4 is meshed with the inner wall of the oil pipe, and the seat seal of the pump seat is realized; the invention has reasonable and compact structure and convenient use, and can directly lower the oil pump 29 in the original well oil pipe 1 without lifting the original well pipe column or the relief Feng Yuanjing packer by sequentially lowering the limiter and the pump seat, thereby realizing sealing of the pump seat and the oil pipe annulus, and effectively solving the problem that the original well pipe column and the relief Feng Yuanjing packer are required to be lifted out of the wellhead when the self-injection production well is changed into the production of the oil pump 29.
The specific implementation process of the invention is as follows:
(1) Well selection: the original pipe column, well completion and production record inquiry is carried out on the well to be pumped, the outer diameter of the rod-type oil pump 29 to be put in is smaller than the inner diameter of the original well oil pipe 1 by 8-10 mm, the inner diameter of the original well oil pipe 1 is free from deformation, obvious scaling, impurities and the like are not generated in the oil pipe, the stratum and the ground are smooth, and the stratum is free from sand burying and the like;
(2) Well-killing replacement wellhead: the oil and the sleeve control pressure relief, the well is pushed horizontally, the production christmas tree is disassembled under the condition that the stable shaft is ensured, and each blowout preventer is installed and tested to be qualified;
(3) And (3) shaft treatment: scraping walls for 20 meters up and down to the depth of the to-be-lowered limiter and the pump seat for multiple times, ensuring that the to-be-lowered tool is clean in position, free of impurities, scaling and the like, and conducting well dredging on the tubular column above the to-be-lowered limiter, wherein the outer diameter of a well dredging gauge is smaller than the inner diameter of an oil pipe by 6-8 mm, and ensuring that the inner diameter of the oil pipe is free of deformation;
(4) And (3) a lower limit stopper: the method comprises the steps that a steel wire logging truck is used for descending a limiter, a tool string structure of the tool string structure comprises a steel wire rope cap, a weighting rod, a chain type jar, a feeding connector and a limiter from top to bottom, after the tool is descended to a set depth, the descending is stopped, the value of each suspended weight is recorded, the tool is quickly descended in a static state, a limiter slip is clamped on the inner wall of an oil pipe by utilizing the speed difference between a limiter mandrel and a limiter outer cylinder 13, the shock is further performed, the engagement of the limiter slip is firmer, and the lower depth position of the limiter is recorded;
(5) Lower rod type oil pump: the wellhead blowout preventer is disassembled, the oil extraction wellhead is installed, the whole pressure test is qualified according to petroleum industry standards, the sucker rod blowout preventer for well repair is installed, the soft sealing rubber is not cut off before the rod type oil pump 29 enters a well, butter is smeared at a locking claw so as to facilitate later deblocking, the ground pump inspection is qualified, a pump seat is connected to the locking claw at the lowest part of the rod type oil pump 29, the pump seat and the oil pump 29 are lowered according to the lower completion machine pumping rod column standard, the distance is 10-15 meters above a limiter, the limiter is required to be slowly lowered, after the limit is detected, the hanging weight is slowly increased, the hanging weight is not more than 2 tons of seat sealing pump seat, after normal liquid is tried out by a workover rig, the manual blowout preventer is installed, the pumping is tried out at the upper dead center, the anti-collision distance is adjusted to be 0.5m, the rest length is not less than 0.5m after the centering is adjusted, the polish rod is ensured not to be the donkey head, and the rod type oil pump 29 is installed;
(6) Reconstructing a wellhead flow: disassembling and throwing the drill floor, rebuilding a wellhead and a ground flow, and testing pressure according to standard requirements.
The rapid rotary extraction completion tool can be further optimized or/and improved according to actual needs:
example 2: as shown in fig. 1, the retaining assembly comprises a locking cylinder 18, an outer retaining tooth 19, an inner retaining tooth 20 and an anti-rotation screw, wherein the locking cylinder 18 is sleeved on the outer side of a small diameter section 11 corresponding to the upper position of a lower joint 8 of a pump seat, at least one group of inner retaining teeth 20 are continuously arranged on the inner side of the locking cylinder 18 from top to bottom, the inner retaining tooth 20 is a ring table with a right-angled triangle cross section, the upper part of the ring table is narrow and the lower part of the ring table is wide, the outer side of the lower part of the small diameter section 11 is provided with an outer retaining tooth 19 matched with the inner retaining tooth 20, and the outer retaining tooth 19 is a ring table with a right-angled triangle cross section, and the upper part of the ring table is wide and the lower part of the ring table is narrow; the inner side of the locking cylinder 18 is provided with an anti-rotation groove which is penetrated up and down, and the outer side of the pump seat outer cylinder 7 corresponding to the position of the anti-rotation groove is provided with an anti-rotation screw with the inner end positioned in the anti-rotation groove. In the use, through this setting, can realize unidirectional locking, avoid the pump seat body to go upward for pump seat urceolus 7.
Example 3: as shown in fig. 1 and 2, the pump seat slip 4 further comprises a jacking spring 22, an installation blind hole 21 with an outward opening is arranged in the middle of the pump seat slip 4, and the jacking spring 22 with the outer end propped against the pump seat slip 4 cylinder is arranged in the installation blind hole 21. During use. By providing the jack spring 22, the upper and lower tapered holes of the pump seat slips 4 are conveniently and respectively abutted against the cone segment 10 and the pump seat cone 5, thereby facilitating the expansion of the pump seat slips 4.
Example 4: as shown in fig. 1 and 2, the stopper slip comprises a slip part 23, a connecting part 24 and a stopper part 25 which are fixedly installed together from top to bottom in sequence, the installation hole comprises an upper window 26 and a lower window 27 which are arranged at intervals up and down, the slip part 23 is positioned in the upper window 26, and the stopper part 25 is positioned in the lower window 27. In the use, through such setting, be convenient for with stopper slips spacing installation in the mounting hole.
Example 5: as shown in fig. 1 and 2, the lower end surface of the limiting portion 25 is a tapered surface having a high inner side and a low outer side, and the lower side surface of the lower window 27 is a tapered surface having a high inner side and a low outer side. In the use, through this setting, be convenient for strut the stopper slips.
Example 6: as shown in fig. 1 to 4, a fast rotary extraction completion method using the fast rotary extraction completion tool comprises the following steps:
(1) The limiter is put down by using a steel wire tool, and the upper end of a core shaft of the limiter is sequentially connected with a steel wire rope cap, a weighting rod, a chain jar and a limiter feeding connector 28 from top to bottom, so that the limiter feeding connector 28 and the upper end of the core shaft of the limiter are fixedly installed together through a limiter shear pin 30;
(2) After the steel wire is lowered to the designed depth, lifting the steel wire by 5 meters and standing, and then quickly lowering the steel wire again to enable the cone part 16 to push the limiter slips to expand in the radial direction, so that the slips part 23 is meshed with the inner wall of the oil pipe;
(3) The tension of the steel wire is reduced, the steel wire is slowly lifted, the chain type jar is pulled, the chain type jar is quickly lowered and jarred downwards, so that the slip part 23 is better meshed with the inner wall of the oil pipe, when the stopper slip cannot move downwards, the chain type jar is jarred again, and the stopper shear pin 30 is sheared to separate the stopper feeding joint 28 from the stopper mandrel;
(4) Feeding the limiter into the joint 28 to lift the wellhead so that the limiter is left in the oil pipe, and finishing the running-in operation of the limiter;
(5) The pump seat is installed together with the rod-type oil pump 29 on the ground, the pump seat body slowly descends when the pump seat is conveyed and descends to reach 10 to 15 meters above the limiter, the pump seat body downwards detects the limiter mandrel, when the suspended weight of the pumping rod pipe column descends, the lower part of the pump seat body is inserted into the limiter mandrel, and the upper end face of the limiter mandrel provides support for the pump seat lower connector 8;
(6) When the sucker rod drives the pump seat body to move downwards, the pump seat lower joint 8 is kept motionless, the pump seat slip 4 cylinder, the pump seat slip 4 and the pump seat cone 5 are fixed to move downwards along with the pump seat body, the rubber cylinder 6 is compressed, the outer diameter of the rubber cylinder 6 is enlarged until the rubber cylinder 6 is clung to the inner wall of the oil pipe, and the sealing between the oil pipe and the pump seat annulus is realized;
(7) Along with the increase of the downward force of the pump seat body, the rubber cylinder 6 is compressed to the limit, the pump seat shear pin 2 is sheared off, the cone section 10 pushes out the pump seat slip 4 so as to be clamped on the inner wall of the oil pipe, the seat seal of the pump seat is realized, and the downward operation of the pump seat is completed.
Compared with the prior art, the invention has the beneficial effects that:
(1) The original production of the self-injection well-to-pumping unit needs to put forward the original well oil pipe 1 and release the Feng Yuanjing packer, so that a great amount of time is spent;
(2) The lower rod type oil pump 29 and the pump seat are completed at one time, so that the operation time is saved;
(3) Avoiding damaging the original well tubing string, and having the characteristics of small well control risk and low production cost.
The technical characteristics form the optimal embodiment of the invention, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (8)
1. The quick rotary pumping well completion tool is characterized by comprising a pump seat and a limiter, wherein the pump seat comprises a pump seat body, a pump seat shear pin, a pump seat slip seat, a pump seat slip, a pump seat cone, a rubber cylinder, a pump seat outer cylinder, a retaining component and a pump seat lower joint, the pump seat body comprises a large diameter section, a cone section and a small diameter section which are fixedly installed together from top to bottom, the cone section is in a round table shape with a large upper part and a small lower part, the outer side of the lower end of the large diameter section is fixedly provided with the pump seat slip seat through the pump seat shear pin, the lower end of the pump seat slip seat is positioned at the outer side of the upper part of the small diameter section, at least two installation windows are circumferentially arranged in the middle of the pump seat slip seat at intervals, a conical pipe with the lower end positioned below the pump seat slip is arranged in each installation window in a limit way, the upper part of the conical pipe is in a round table shape with a small lower part, the inner side of the upper part of the pump seat slip is provided with an upper conical hole, the upper conical hole is in a round table hole with a large upper part and a small lower part, the inner side of the lower conical hole is arranged on the inner side of the lower part of the conical pipe is in a round table shape with a small conical part, the conical part is arranged with respect to the small inner side of the small conical part of the lower part, the conical pipe is arranged with the small conical part and the small conical part is positioned between the small lower part and the pump seat slip seat lower part and the small outer cylinder seat lower part is arranged with the small outer cylinder seat, and the pump seat lower part is opposite to the small lower part, and the pump seat lower part is fixed with the pump seat lower part of the pump seat; the limiter comprises a limiter mandrel, a limiter outer barrel, limiter slips and an outer barrel seat, wherein the limiter mandrel is arranged on the outer side of the lower end of a pump seat body, the limiter mandrel comprises a large-diameter portion, a cone portion and a small-diameter portion which are sequentially and fixedly installed together from top to bottom, the cone portion is in a round table shape with the large upper portion and the small lower portion, the outer barrel seat is arranged on the outer side of the lower end of the small-diameter portion, the limiter outer barrel with the lower end being arranged on the upper end of the outer barrel seat is sleeved on the outer side of the cone portion, at least two installation holes are formed in the middle of the limiter outer barrel at intervals along the circumference, and the limiter slips are all installed in each installation hole in a limiting mode.
2. The rapid rotary drawing completion tool according to claim 1, wherein the retaining assembly comprises a locking cylinder, outer retaining teeth, inner retaining teeth and anti-rotation screws, the locking cylinder is sleeved outside a small diameter section corresponding to the position above a lower joint of the pump seat, at least one group of inner retaining teeth are continuously arranged inside the locking cylinder from top to bottom, the inner retaining teeth are annular platforms with right-angled triangle cross sections and are narrow at the top and wide at the bottom, outer retaining teeth matched with the inner retaining teeth are arranged outside the lower part of the small diameter section, and the outer retaining teeth are annular platforms with right-angled triangle cross sections and are wide at the top and narrow at the bottom; the inner side of the locking cylinder is provided with an anti-rotation groove which is penetrated up and down, and the outer side of the pump seat outer cylinder corresponding to the position of the anti-rotation groove is provided with an anti-rotation screw with the inner end positioned in the anti-rotation groove.
3. The rapid rotary pumping completion tool according to claim 1 or 2, further comprising a jack spring, wherein the middle part of the pump seat slip is provided with an outward opening installation blind hole, and the jack spring with the outer end propped against the pump seat slip seat is arranged in the installation blind hole.
4. The quick rotary extraction completion tool according to claim 1 or 2, wherein the retainer slip comprises a slip part, a connecting part and a limiting part which are fixedly installed together in sequence from top to bottom, the installation hole comprises an upper window and a lower window which are arranged at intervals from top to bottom, the slip part is positioned in the upper window, and the limiting part is positioned in the lower window.
5. The rapid rotary pumping completion tool according to claim 3, wherein the retainer slip comprises a slip portion, a connecting portion and a limiting portion which are fixedly installed together in sequence from top to bottom, the installation hole comprises an upper window and a lower window which are arranged at intervals from top to bottom, the slip portion is located in the upper window, and the limiting portion is located in the lower window.
6. The tool of claim 4, wherein the lower end surface of the limiting portion is a tapered surface with a high inner side and a low outer side, and the lower side surface of the lower window is a tapered surface with a high inner side and a low outer side.
7. The rapid rotary completion tool according to claim 5, wherein the lower end face of the limiting part is a conical surface with an inner high and an outer low, and the lower side face of the lower window is a conical surface with an inner high and an outer low.
8. A method of rapid rotary extraction completion of a rapid rotary extraction completion tool according to any one of claims 1 to 7, comprising the steps of:
(1) The limiter is put down by using a steel wire tool, and the upper end of a core shaft of the limiter is sequentially connected with a steel wire rope cap, a weighting rod, a chain type jar and a feeding connector of the limiter from top to bottom, so that the feeding connector of the limiter and the upper end of the core shaft of the limiter are fixedly installed together through a shear pin of the limiter;
(2) Lowering the steel wire, lifting the steel wire and standing until the designed depth is reached, and then quickly lowering the steel wire again to enable the cone part to push the stopper slips to expand in the radial direction, so that the slips part bites the inner wall of the oil pipe;
(3) The tension of the steel wire is reduced, the steel wire is slowly lifted, the chain type jar is pulled, the chain type jar is rapidly lowered and jarred downwards, so that the slip part is better meshed with the inner wall of the oil pipe, when the stopper slip can not move downwards, the shock is performed again, and the stopper shear pin is sheared to separate the stopper feeding joint from the stopper mandrel;
(4) Feeding the limiter into the connector to lift out of the wellhead, so that the limiter is left in the oil pipe, and the running operation of the limiter is finished;
(5) The pump seat is installed on the ground and together with the rod-type oil pump, the pump seat body slowly descends when the pump seat is conveyed and falls below the limiter, the pump seat body downwards extends to the limiter mandrel, when the suspended weight of the pumping rod pipe column descends, the lower part of the pump seat body is inserted into the limiter mandrel, and the upper end face of the limiter mandrel provides support for the lower connector of the pump seat;
(6) When the sucker rod drives the pump seat body to move downwards, the pump seat lower joint keeps still, the pump seat slip seat, the pump seat slip and the pump seat cone are fixed to move downwards along with the pump seat body, the rubber cylinder is compressed, the outer diameter of the rubber cylinder is enlarged until the rubber cylinder is clung to the inner wall of the oil pipe, and the annular sealing of the oil pipe and the pump seat is realized;
(7) With the increase of the downward force of the pump seat body, the rubber cylinder is compressed to the limit, the shear pin of the pump seat is sheared, and the cone section pushes out the pump seat slips to be clamped on the inner wall of the oil pipe, so that the seat seal of the pump seat is realized, and the downward operation of the pump seat is completed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210627530.3A CN114941516B (en) | 2022-06-02 | 2022-06-02 | Quick rotary extraction well completion tool and quick rotary extraction well completion method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210627530.3A CN114941516B (en) | 2022-06-02 | 2022-06-02 | Quick rotary extraction well completion tool and quick rotary extraction well completion method |
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| CN114941516A CN114941516A (en) | 2022-08-26 |
| CN114941516B true CN114941516B (en) | 2024-01-12 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484696A (en) * | 2016-01-26 | 2016-04-13 | 新疆华油油气工程有限公司 | Recyclable blanking plug in oil tubing |
| CN209228337U (en) * | 2017-11-09 | 2019-08-09 | 成都维泰油气能源技术有限公司 | A kind of dissolvable bridge plug |
| CN112360392A (en) * | 2020-12-08 | 2021-02-12 | 中国石油天然气集团有限公司 | Maintenance method for oil pipe plugging bridge plug and main valve of gas production tree |
| CN113738314A (en) * | 2020-05-29 | 2021-12-03 | 中国石油化工股份有限公司 | Integrated pumping linkage pressurized rotary pumping pipe column, plugging tool and plugging method |
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2022
- 2022-06-02 CN CN202210627530.3A patent/CN114941516B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484696A (en) * | 2016-01-26 | 2016-04-13 | 新疆华油油气工程有限公司 | Recyclable blanking plug in oil tubing |
| CN209228337U (en) * | 2017-11-09 | 2019-08-09 | 成都维泰油气能源技术有限公司 | A kind of dissolvable bridge plug |
| CN113738314A (en) * | 2020-05-29 | 2021-12-03 | 中国石油化工股份有限公司 | Integrated pumping linkage pressurized rotary pumping pipe column, plugging tool and plugging method |
| CN112360392A (en) * | 2020-12-08 | 2021-02-12 | 中国石油天然气集团有限公司 | Maintenance method for oil pipe plugging bridge plug and main valve of gas production tree |
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| CN114941516A (en) | 2022-08-26 |
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