CN112696179B - Screen pipe dislocation insertion centralizing repair pipe column and method - Google Patents
Screen pipe dislocation insertion centralizing repair pipe column and method Download PDFInfo
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- CN112696179B CN112696179B CN201911008700.4A CN201911008700A CN112696179B CN 112696179 B CN112696179 B CN 112696179B CN 201911008700 A CN201911008700 A CN 201911008700A CN 112696179 B CN112696179 B CN 112696179B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000003780 insertion Methods 0.000 title claims abstract description 22
- 230000008439 repair process Effects 0.000 title claims abstract description 21
- 230000037431 insertion Effects 0.000 title claims abstract description 20
- 239000004576 sand Substances 0.000 claims abstract description 93
- 230000000903 blocking effect Effects 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 230000004888 barrier function Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 9
- 238000010168 coupling process Methods 0.000 abstract description 8
- 238000005859 coupling reaction Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 4
- 210000002445 nipple Anatomy 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012546 transfer Methods 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
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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
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
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- Engineering & Computer Science (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Pipe Accessories (AREA)
Abstract
The invention discloses a screen pipe dislocation insertion centralizing repair pipe column and a method, comprising the following steps: the fixed pipe of righting, righting fixed union coupling oil pipe in the upper end, righting fixed union coupling including the body, keep off the sand platform, the body is the hollow tube, and the outer wall of righting fixed pipe sets up at least two-layer fender sand platform, and the outer wall that keeps off the sand platform is connected for interference fit with the screen pipe inner wall, and the screen pipe mistake fracture is sealed and is separated between two-layer fender sand platform. The sand blocking table is an annular table, and the outer wall of the sand blocking table is of a conical structure. The invention solves the problem that the prior sieve tube has no effective repairing method after being mistakenly broken. The well repairing operation method provides a brand-new screen pipe dislocation repairing method, completes screen pipe dislocation repairing with lower cost, greatly improves the repair efficiency of the dislocation well, and has wide application prospect in the field of well repairing operation of various oil fields.
Description
Technical Field
The invention relates to the technical field of downhole operation of oil and gas wells, in particular to a screen pipe dislocation insertion centralizing repair pipe column and a screen pipe dislocation insertion centralizing repair method.
Background
With the continuous deep development of oil fields, production stopping wells increase year by year, wherein screen pipe breakage is an important factor causing the production stopping of the oil wells, so that the well pattern is incomplete, and the reserves are out of control. At present, no effective measure is available for repairing the sieve tube after the sieve tube is broken, the sieve tube section is directly clamped and discarded, a new side-drilling well is adopted, and a small-diameter sand control pipe column is put into the new side-drilling well to restore production, so that the construction period is long and the cost is high. Because the screen pipe fault repair lacks effective measures, the stock is increased year by year, and the oil field development effect is seriously influenced.
Application No.: 201610701791.X, filing date: 2016-08-19 discloses a centralizing sand control integrated pipe column, which comprises a suspension head, an automatic expansion centralizing short section, an automatic expansion sealing centralizing short section, a sieve pipe, a guide cone and a sleeve, wherein the suspension head is of an inverted cone structure, the inner wall of a cone extension pipe is provided with internal threads for connecting a rod body of a drill rod, and the root of the cone extension pipe is in threaded connection with the automatic expansion centralizing short section, the automatic expansion sealing centralizing short section and the automatic expansion centralizing short section are sequentially connected through the sleeve; the automatic expansion seal centralizing short section is in threaded connection with the sieve tube, the automatic expansion seal centralizing short section and the guide cone in sequence. And a vulcanized automatic expansion rubber cylinder is arranged at the periphery of the automatic expansion righting nipple/automatic expansion sealing righting nipple. The invention has the beneficial effects that: the problem of conventional sand control tubular column not well in the middle of, do not seal up and lead to the sand control inefficacy or invalid is solved, can stabilize the stratum, prevent that the well from collapsing and go out the sand, the sand control is effectual, and the validity period is long, avoids the oil-water well to scrap.
Application No.: 201820985022.1, application date: 2018-06-26 is a compressible sand control well centralizer, which can effectively solve the adverse effect of the sand control screen pipe centralizer on construction in the later filling stage of the sand control well in the petroleum industry and in the construction of salvaging and milling artificial sand walls. The utility model provides a compressible formula sand control well centralizer includes that compression is right piece, upper portion and is held the cavity and the cavity is held to the lower part, holds the cavity with upper portion and the cavity is held to the lower part and the parent tube welding, and compression is right the piece and is installed on upper portion and is held the cavity and the lower part and hold the parent tube outside between the cavity, block and hold in the cavity is held in upper portion and the cavity is held to the lower part. The anti-sand pipe column is effectively protected from being backed off from the coupling, the fishing construction process in the later period is obviously avoided, the construction period of the casing milling construction is effectively shortened, the operation cost is saved, the production cost is obviously reduced, and the anti-sand pipe column has a good use effect and an application value.
Application No.: 201120060954.3, application date: 2011-03-10 a selfreparing sand control screen pipe, including top connection, the parent tube that punches, outside guard shield, flow baffle, lower clutch, slot inner tube and outside wire winding pipe, its characterized in that be connected with the parent tube that punches, slot inner tube, flow baffle in order in the top connection, the top connection is connected with outside guard shield and lower clutch in order outward, installs outside wire winding pipe on the outside guard shield. The utility model has the characteristics of can balance outer tube inflow fluid's momentum and the redistribution of fluid momentum, reduce the risk that the screen pipe became invalid, reduce the number of times of workover, extension oil well production cycle, incremental recovery, use portably etc, extensively use in oil development sand control technology.
Application No.: 201910202637.1, application date: 2019-03-18 a sand control tubular column of a casing damage repair well, comprising a wire-wound screen pipe, wherein the lower end of the wire-wound screen pipe is screwed with a coupling, the lower end of the coupling is screwed with a double-male nipple, and the lower end of the double-male nipple is screwed with a bottom sand washing tool; the upper end of the wire-wound screen pipe is screwed with a safety joint, the upper end of the safety joint is screwed with a blind pipe, the upper end of the blind pipe is screwed with a top releasing tool, the top releasing tool is provided with a flushing pipe extending downwards along a central line, the lower end of the flushing pipe sequentially penetrates through the blind pipe, the safety joint and the wire-wound screen pipe to be inserted into a coupling center bell and spigot, and the upper female thread of the coupling is screwed with the lower end of the wire-wound screen pipe. The upper part of the lower butt joint is provided with a socket and a locking ring, a packer which can be released is inserted into the lower butt joint after the packer is released, and an upper butt joint at the lower end of the packer is inserted into the socket of the lower butt joint. The sand control pipe column of the casing damage repair well can convey the wire-wrapped screen pipe to the bottom of the well and carry out sand washing, and the wire-wrapped screen pipe is left in the well after the sand control retaining wall is built.
The technical solutions of the above-disclosed technologies, the technical problems to be solved, and the advantageous effects thereof are all different from those of the present invention, and no technical inspiration exists in the above-disclosed technical documents for further technical features, technical problems to be solved, and advantageous effects thereof.
Disclosure of Invention
The invention aims to provide a screen pipe dislocation insertion centralizing repair pipe column and a screen pipe dislocation insertion centralizing repair method, which are used for underground operation of an oil-water well and solve the problem that no effective repair method exists after the screen pipe is in dislocation. The well repairing operation method provides a brand-new screen pipe dislocation repairing method, completes screen pipe dislocation repairing with lower cost, greatly improves the dislocation well repairing efficiency, and has wide application prospect in the field of various oil field well repairing operations.
In order to achieve the purpose, the invention adopts the following technical scheme that the screen pipe dislocation insertion centralization repair pipe column comprises:
the fixed pipe of rightting, right fixed union coupling oil pipe in the upper end, right fixed pipe and include the body, keep off the sand platform, the body is the hollow tube, sets up at least two-layer fender sand platform at the outer wall of rightting fixed pipe, and the outer wall that keeps off the sand platform is connected for interference fit with the screen pipe inner wall, and the screen pipe mistake fracture is sealed and is separated between two-layer fender sand platform.
Furthermore, the sand blocking table is an annular table, and the outer wall of the sand blocking table is of a conical structure.
Furthermore, the outer wall of the sand blocking table is of a conical structure with a large upper part and a small lower part.
Further, the outer wall of the lower port of the body is of a conical guide structure.
Furthermore, the upper port of the body is connected with an upper joint, and the upper joint is connected with an oil pipe.
Further, the method also comprises the following steps:
the casing anchor is connected to the oil pipe and located above the centralizing fixed pipe.
Further, still include:
the hydraulic thruster is connected to the oil pipe and located below the casing anchor, and the hydraulic thruster is located above the righting fixing pipe.
Further, still include:
the safety release is connected to the oil pipe and located below the hydraulic propeller, and meanwhile the safety release is located above the righting fixing pipe.
In order to achieve the purpose, the invention adopts the following technical scheme that the method for righting and repairing the broken sieve tube comprises the following steps:
inserting the centering fixing pipe into the staggered fracture by using a hydraulic propeller, and centering the fixing pipe to form a new production channel to recover production;
the hydraulic thruster directly applies a large load insertion force at the fracture to transfer the point of application from the conventional surface location downhole.
Further, the ground is suppressed and liquid is pumped into through the oil pipe, the casing pipe anchor works and is anchored on the casing pipe, the pressing is continued, the hydraulic propeller converts hydraulic pressure into mechanical thrust, the safety release and the righting fixing pipe are pushed to advance, the fault broken sieve pipe is inserted, the fracture is righted and fixed, finally, the oil pipe is rotated, the release is completed through the safety release, the righting fixing pipe is left in the well, and the oil pipe, the casing pipe anchor, the hydraulic propeller and the safety release are lifted out.
Furthermore, in the production process, when sand returned from the fracture of the fault-fracture screen pipe passes through the centering fixing pipe, the multistage sand retaining tables are used for retaining sand step by step to form a sand prevention barrier.
Compared with the prior art, the invention has the following beneficial effects:
(1) The method solves the problem of repairing the screen pipe of the highly deviated well, particularly the horizontal well, has the advantages of simple process, short construction time, short well occupying period and the like compared with the existing method for repairing the sidetracking new well, finishes repairing the faulted well with the minimum cost, improves the repairing efficiency and reduces the cost.
(2) A brand-new insertion centralizing method is designed, a centralizing fixed pipe is inserted into a staggered fracture by using a hydraulic propeller, the hydraulic propeller directly exerts large load insertion force on the staggered fracture, an acting force point is transferred to the underground from a conventional ground position, the influence of a well trajectory on acting force transmission is avoided, the insertion efficiency is improved, and the problem of repairing the staggered fracture of a well with a complex structure such as a highly deviated well and a horizontal well is solved.
(3) The centralizing fixed pipe is designed, on one hand, the centralizing fixed pipe has the functions of inserting a staggered fracture and centralizing a staggered screen pipe, on the other hand, a multi-stage sand blocking mechanism is designed, and by utilizing the principle of graded sand setting, normal sand prevention can be realized after staggered fracture centralizing, and secondary sand prevention is not needed.
(4) A large-tonnage hydraulic propeller is designed, a multi-stage hydraulic boosting principle is adopted, hydraulic pressure is converted into thrust, large-tonnage acting force is provided for the dislocation sieve tube to enter and centralize, and the problem that large-load centralizing force is needed for dislocation centralization is solved.
Drawings
FIG. 1 is a schematic view of a screen pipe dislocation insertion centralizing and repairing pipe column structure according to the present invention;
fig. 2 is a schematic view of the structure of the centering fixing tube.
In the figure: the device comprises an oil pipe 1, a casing anchor 2, a hydraulic propeller 3, a safety release 4, a centering fixing pipe 5, a fault-broken sieve pipe 6, an upper joint 7, a body 8 and a sand blocking table 9.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1:
referring to fig. 1 to fig. 2, the present invention provides a technical solution: a screen pipe break-insertion centralizing repair string comprising:
righting fixed pipe 5, righting fixed pipe upper end and connecting oil pipe, righting fixed pipe and including body 8, fender sand platform 9, the body is the hollow tube, and the outer wall of righting fixed pipe sets up two-layer at least and keeps off the sand platform, and the outer wall that keeps off the sand platform is connected for interference fit with the screen pipe inner wall, and the screen pipe mistake fracture department is sealed off between two-layer fender sand platform.
Furthermore, the sand blocking table is an annular table, and the outer wall of the sand blocking table is of a conical structure.
Furthermore, the outer wall of the sand blocking table is of a conical structure with a large upper part and a small lower part.
Further, the outer wall of the lower port of the body is of a conical guide structure.
Furthermore, the upper port of the body is connected with an upper joint 7, and the upper joint is connected with an oil pipe.
Further, still include:
and the casing anchor 2 is connected to the oil pipe and is positioned above the centralizing fixed pipe.
Further, the method also comprises the following steps:
and the hydraulic propeller 3 is connected to the oil pipe, is positioned below the sleeve anchor, and is positioned above the righting fixed pipe.
Further, the method also comprises the following steps:
and a safety release 4, wherein the safety release is connected to the oil pipe and is positioned below the hydraulic propeller, and meanwhile, the safety release is positioned above the righting fixed pipe.
The function of the centering fixing pipe is to insert the staggered fracture, center the two ends of the staggered screen pipe, prevent the repeated staggered fracture and form a new production channel; the safety release has the function of rotating the pipe column release after righting to ensure the construction safety; the hydraulic thruster has the functions of converting hydraulic pressure into mechanical force, providing large-tonnage insertion force for the centering fixing pipe, and smoothly inserting and fixing the centering fixing pipe into the staggered fracture; the casing anchor is used for providing anchoring force for repairing the dislocation of the whole sieve tube, and transferring the counterforce of the inserted righting fixing tube to the sieve tube so as to prevent the oil feeding tube from being stressed and ensure the operation safety.
The implementation process of the invention is as follows: firstly, a centering fixing pipe, a safety release, a hydraulic propeller and a casing pipe anchor are connected together on the ground, an oil pipe is used for lowering a screen pipe fracture repairing pipe column into the well to a position above a fracture, a pump truck is started on the ground for pressing, the casing pipe anchor works and is anchored on a screen pipe, and the whole repairing pipe column is fixed; then, the pump pressure is continuously increased, the hydraulic propeller converts the hydraulic pressure into driving force, the centering fixing pipe is pushed to center the fault broken sieve pipe, and the two fractures of the fault broken sieve pipe are inserted and fixed; and finally, releasing the pressure, unsealing the casing anchor, rotating the tubular column to complete releasing, and pulling out the hydraulic thruster and the casing anchor. After the repairing, the invention forms a new production channel, does not need secondary sand control, is directly put into production, and has simple construction and low cost.
Firstly, a righting fixed pipe 5, a safety release 4, a hydraulic propeller 3 and a casing anchor 2 are sequentially connected from bottom to top on the ground, an oil pipe 1 is utilized to convey a pipe column to a dislocation position, then the ground is pressed, liquid is pumped in through the oil pipe 1, the casing anchor 2 works, is anchored on a casing and continues to be pressed, the hydraulic propeller 3 converts hydraulic pressure into mechanical thrust to push the safety release 4 and the righting fixed pipe 5 to advance, a dislocation screen pipe 6 is inserted to righting and fixing a fracture, finally, the oil pipe 1 is rotated, the safety release 4 finishes release, the righting fixed pipe 5 is left under the well, the oil pipe 1, the casing anchor 2, the hydraulic propeller 3 and the safety release 4 are lifted out, a new production channel is formed, and production is recovered. In the production process, when sand returned from the fracture of the fault-breaking screen pipe 6 passes through the centralizing fixing pipe 5, the multistage sand blocking tables 9 block sand step by step to form a sand prevention barrier.
The invention is used in the field of well repair. The method adopts the underground dislocation repair pipe column, centralizes two ends of the dislocation of the sieve pipe, inserts the high-strength centralizing pipe for centralizing and supporting to form a new production channel, does not need secondary sand prevention, and can quickly recover production. The method has the advantages of short construction period and low cost, provides a brand-new means for repairing the screen pipe broken well, and realizes the quick and low-cost repair of the broken well.
Example 2:
referring to fig. 1 to fig. 2, the present invention provides a technical solution: a screen pipe dislocation insertion centralizing and repairing string, comprising:
righting fixed pipe 5, righting fixed pipe upper end and connecting oil pipe, righting fixed pipe and including body 8, fender sand platform 9, the body is the hollow tube, and the outer wall of righting fixed pipe sets up two-layer at least and keeps off the sand platform, and the outer wall that keeps off the sand platform is connected for interference fit with the screen pipe inner wall, and the screen pipe mistake fracture department is sealed off between two-layer fender sand platform.
Furthermore, the sand blocking table is an annular table, and the outer wall of the sand blocking table is of a conical structure.
Furthermore, the outer wall of the sand blocking table is of a conical structure with a large upper part and a small lower part.
Further, the outer wall of the lower port of the body is of a conical guide structure.
Furthermore, the upper port of the body is connected with an upper joint 7, and the upper joint is connected with an oil pipe.
Further, still include:
and the casing anchor 2 is connected to the oil pipe and is positioned above the centralizing fixed pipe.
Further, still include:
and the hydraulic propeller 3 is connected to the oil pipe, is positioned below the sleeve anchor, and is positioned above the righting fixing pipe.
Example 3:
referring to fig. 1 to fig. 2, the present invention provides a technical solution: a screen pipe dislocation insertion centralizing and repairing string, comprising:
righting fixed pipe 5, righting fixed union coupling oil pipe in the upper end, righting fixed pipe and including body 8, fender sand platform 9, the body is the hollow tube, and the outer wall of righting fixed pipe sets up at least two-layer fender sand platform, and the outer wall that keeps off the sand platform is connected for interference fit with the screen pipe inner wall, and screen pipe dislocation department is sealed and is separated between two-layer fender sand platform.
Furthermore, the sand blocking table is an annular table, and the outer wall of the sand blocking table is of a conical structure.
Furthermore, the outer wall of the sand blocking table is of a conical structure with a large upper part and a small lower part.
Further, the outer wall of the lower port of the body is of a conical guide structure.
Furthermore, the upper port of the body is connected with an upper joint 7, and the upper joint is connected with an oil pipe.
Further, still include:
and the casing anchor 2 is connected to the oil pipe and is positioned above the centralizing fixed pipe.
Example 4:
referring to fig. 1 to 2, the present invention provides a technical solution: a screen pipe break-insertion centralizing repair string comprising:
righting fixed pipe 5, righting fixed pipe upper end and connecting oil pipe, righting fixed pipe and including body 8, fender sand platform 9, the body is the hollow tube, and the outer wall of righting fixed pipe sets up two-layer at least and keeps off the sand platform, and the outer wall that keeps off the sand platform is connected for interference fit with the screen pipe inner wall, and the screen pipe mistake fracture department is sealed off between two-layer fender sand platform.
Furthermore, the sand blocking table is an annular table, and the outer wall of the sand blocking table is of a conical structure.
Furthermore, the outer wall of the sand blocking table is of a conical structure with a large upper part and a small lower part.
Furthermore, the outer wall of the lower port of the body is of a conical guide structure.
Furthermore, the upper port of the body is connected with an upper joint 7, and the upper joint is connected with an oil pipe.
Example 5:
referring to fig. 1 to 2, the present invention provides a technical solution: a screen pipe dislocation insertion centralizing and repairing string, comprising:
righting fixed pipe 5, righting fixed pipe upper end and connecting oil pipe, righting fixed pipe and including body 8, fender sand platform 9, the body is the hollow tube, and the outer wall of righting fixed pipe sets up two-layer at least and keeps off the sand platform, and the outer wall that keeps off the sand platform is connected for interference fit with the screen pipe inner wall, and the screen pipe mistake fracture department is sealed off between two-layer fender sand platform.
Furthermore, the sand blocking table is an annular table, and the outer wall of the sand blocking table is of a conical structure.
Although fig. 1 to 2 are used in all the above embodiments, it is obvious to those skilled in the art that separate drawings are not shown as long as the parts or structural features missing in the embodiments are removed from the drawings. As will be clear to the person skilled in the art. Of course, the embodiments with more components are only the best embodiments, and the embodiments with less components are the basic embodiments, but the basic objects of the invention can also be achieved, so all of them are within the protection scope of the invention.
All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again. Such as welding, threading, bolting, etc. The diagrammatic illustration of the invention is thus fully apparent, the mechanical construction of each component being not subject to modification, and the details of the particular connections of all the components will be apparent to those skilled in the art.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and should be construed to include, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a screen pipe dislocation inserts rightting restoration tubular column which characterized in that includes:
the screen pipe comprises a centering fixed pipe, wherein the upper end of the centering fixed pipe is connected with an oil pipe, the centering fixed pipe comprises a body and sand blocking tables, the body is a hollow pipe, at least two layers of the sand blocking tables are arranged on the outer wall of the centering fixed pipe, the outer walls of the sand blocking tables are connected with the inner wall of a screen pipe in an interference fit manner, and the staggered part of the screen pipe is sealed between the two layers of the sand blocking tables; further comprising:
the casing anchor is connected to the oil pipe and positioned above the righting fixed pipe;
the hydraulic thruster is connected to the oil pipe and located below the sleeve anchor, and the hydraulic thruster is located above the righting fixing pipe.
2. The screen pipe dislocation inserting centralizing repairing pipe column according to claim 1, wherein the sand stop table is an annular table, and the outer wall of the sand stop table is a conical structure.
3. The screen pipe dislocation inserting centralizing repairing pipe column according to claim 2, wherein the outer wall of the sand stop is a conical structure with a big top and a small bottom.
4. The screen pipe dislocation insertion centralizing repair string according to claim 2, wherein the outer wall of the lower port of the body is a conical guide structure.
5. The screen pipe dislocation inserting centralizing repairing pipe column according to claim 2, wherein the upper port of the body is connected with an upper joint, and the upper joint is connected with a tubing.
6. The screen pipe dislocation insertion centralizing repair string according to claim 1, further comprising:
the safety release is connected to the oil pipe and located below the hydraulic propeller, and meanwhile the safety release is located above the righting fixing pipe.
7. The method for screen pipe dislocation repair by inserting a centralizing and repairing string according to claim 1, comprising the steps of:
1) Inserting the righting fixing pipe into the staggered fracture by using a hydraulic propeller, righting the fixing pipe to form a new production channel, and recovering production;
2) The hydraulic thruster applies a high load insertion force directly at the break opening, shifting the point of application from the normal surface location downhole.
8. The method of claim 7, wherein surface pressure is pumped through tubing to pump fluid, the casing anchor is operated to anchor to the casing, pressure is continued, hydraulic pressure is converted into mechanical thrust by a hydraulic thruster to push the safety release and centralizing fixed tubing forward, the fracking screen is inserted to centralize and fix the fracture, finally the tubing is rotated, the safety release is completed to release, the centralizing fixed tubing is left downhole, and the tubing, casing anchor, hydraulic thruster, safety release are tripped out.
9. The method of claim 8, wherein the plurality of sand retention stations progressively retain sand to form the sand control barrier as sand returns from the fracture of the frac screen through the centralizing fixture during production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911008700.4A CN112696179B (en) | 2019-10-22 | 2019-10-22 | Screen pipe dislocation insertion centralizing repair pipe column and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911008700.4A CN112696179B (en) | 2019-10-22 | 2019-10-22 | Screen pipe dislocation insertion centralizing repair pipe column and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112696179A CN112696179A (en) | 2021-04-23 |
| CN112696179B true CN112696179B (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911008700.4A Active CN112696179B (en) | 2019-10-22 | 2019-10-22 | Screen pipe dislocation insertion centralizing repair pipe column and method |
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| US20030183395A1 (en) * | 2002-04-01 | 2003-10-02 | Jones Gary W. | System and method for preventing sand production into a well casing having a perforated interval |
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| CN103061700A (en) * | 2011-10-21 | 2013-04-24 | 中国石油化工股份有限公司 | Casing pipe dislocation horizontal well correction and repair method and dedicated integration tools of casing pipe dislocation horizontal well correction and repair |
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