CN116412312A - Sleeved coiled tubing repairing device and coiled tubing repairing method based on same - Google Patents
Sleeved coiled tubing repairing device and coiled tubing repairing method based on same Download PDFInfo
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- CN116412312A CN116412312A CN202111679080.4A CN202111679080A CN116412312A CN 116412312 A CN116412312 A CN 116412312A CN 202111679080 A CN202111679080 A CN 202111679080A CN 116412312 A CN116412312 A CN 116412312A
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- connecting piece
- coiled tubing
- oil pipe
- continuous oil
- pipe section
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 230000007704 transition Effects 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 20
- 230000008439 repair process Effects 0.000 claims description 14
- 238000004321 preservation Methods 0.000 claims description 7
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 7
- 238000011084 recovery Methods 0.000 description 6
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229910001000 nickel titanium Inorganic materials 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The invention discloses an outer sleeve type coiled tubing repairing device and a coiled tubing repairing method based on the same. During restoration, the connecting piece is expanded and deformed at low temperature, so that two sections of continuous oil pipe sections are respectively inserted into the connecting piece from two ends, the heating coil heats the connecting piece inserted into the continuous oil pipe section at a temperature higher than the transition temperature, heat is preserved, the connecting piece is restored to a state higher than the transition temperature, and restoration of the continuous oil pipe is realized through contact pressure. The coiled tubing repaired by the process has high reliability, saves the cost of the coiled tubing, and promotes the field application and development of the coiled tubing.
Description
Technical Field
The invention belongs to the technical field of oil and gas field exploration and development, and particularly relates to an outer sleeve type coiled tubing repairing device and a coiled tubing repairing method based on the same.
Background
In the drilling operation process in oil and gas exploration and development, the coiled tubing is widely applied to drilling and completion operations such as fracturing, sand washing and the like. The coiled tubing is a tubing made of low-carbon alloy steel, has good flexibility, is also called a flexible tubing, and has a length of several kilometers. The continuous oil pipe operation equipment has the characteristics of pressurized operation and continuous lifting, and is small in size, quick in operation period and low in cost. Because the coiled tubing is integrally formed by a pipe, when the pipe is damaged locally or broken and fails in the use process, the traditional welding type repairing mode has a plurality of procedures and high requirements, different welding wires are required to be adopted for different pipes, and the quality of welding seams is difficult to ensure.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an outer sleeve type coiled tubing repairing device and a coiled tubing repairing method based on the same, which are used for solving the technical problems of complex repairing formula, high requirement, need to adopt different welding wires and the like in the prior art.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the invention discloses an outer sleeve type coiled tubing repairing device which comprises a connecting piece, wherein a heating coil is arranged outside the connecting piece, and a first continuous oil pipe section and a second continuous oil pipe section are sleeved inside the connecting piece;
the first continuous oil pipe section and the second continuous oil pipe section are identical in material, outer diameter and wall thickness;
the connecting piece is in a circular ring shape and is made of a one-way shape memory alloy material;
the two sides of the inner surface of the connecting piece are respectively provided with a plurality of first negative angle zigzag grooves and second negative angle zigzag grooves; the first negative angle zigzag groove and the second negative angle zigzag groove are the same in shape and opposite in direction.
Further, the transition temperature of the connecting piece is more than or equal to 45 ℃ and the length is 80-150 mm.
Further, the inner diameter of the connecting piece after deformation below the transition temperature is 0.2-0.4 mm larger than the outer diameters of the first continuous oil pipe section and the second continuous oil pipe section; after the memory of the connecting piece is restored, the inner diameter of the connecting piece is 0.3-0.5 mm smaller than the outer diameter of the continuous oil pipe section, and the wall thickness is the same as the wall thickness of the first continuous oil pipe section and the second continuous oil pipe section; the material strength of the connecting piece after restoring memory is greater than or equal to the material strength of the first continuous oil pipe section and the second continuous oil pipe section.
Further, the number of the first negative angle zigzag grooves and the second negative angle zigzag grooves is 3-7.
Further, the negative angles of the first negative angle zigzag groove and the second negative angle zigzag groove are minus 3 degrees to minus 5 degrees, the slope surface angle is 30 degrees, the groove depth is 5-10% of the wall thickness of the connecting piece, the tooth top width is 1-2mm, and the tooth bottom width is 2-3mm.
The invention also discloses a coiled tubing repairing method based on the jacket type coiled tubing repairing device, which comprises the following steps:
firstly, deforming the connecting piece below the transition temperature, respectively sleeving the first continuous oil pipe section and the second continuous oil pipe section into the connecting piece, wherein the sleeving depth is 1/2 of the length of the connecting piece, then heating the connecting piece by adopting a heating coil, and after heat preservation, obtaining the repaired continuous oil pipe.
Further, the heating temperature is 50-65 degrees, and the heat preservation time is 15-20 min.
The invention also discloses a repaired coiled tubing obtained by the repairing method, wherein the connection strength of the repaired coiled tubing at the connecting piece is greater than 80% of the connection strength of the pipe body, and the sealing strength is greater than 85% of the internal pressure resistance of the pipe body.
Further, the service working condition temperature of the repaired coiled tubing is-20-220 ℃.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses an outer sleeve type coiled tubing repairing device, which adopts a connecting piece made of a single-pass memory alloy material as a connecting material, and the connecting piece is heated by a heating coil, so that the dimensional expansion of the connecting piece below the transition temperature can be realized, the connecting pieces are respectively inserted into two sections of continuous oil pipe sections from two ends, the heating coil is used for heating the connecting piece inserted into the continuous oil pipe sections above the transition temperature, the heat is preserved, the connecting piece is restored to a state above the transition temperature, the repairing of the coiled tubing is realized by the contact pressure, welding equipment is not needed, and the heat treatment is not needed for welding the welding seam of the welded repaired coiled tubing.
Further, a plurality of negative angle zigzag grooves are respectively formed in two sides of the inner surface of the connecting piece, the inner surface of the connecting piece can be divided into a plurality of annular small contact surfaces to be contacted with the continuous oil pipe section, and the contact force and the sealing effect of the connecting piece and the continuous oil pipe section can be improved.
The invention also discloses a method for repairing the coiled tubing by adopting the sleeved coiled tubing repairing device, which is simple and easy to operate, does not need additional welding equipment, and has low cost and high reliability.
The performance of the joint of the repaired coiled tubing obtained by the coiled tubing repairing method reaches more than 80% of that of the tubing body, so that the coiled tubing can be effectively reused, the cost of the coiled tubing is saved, and the field application and development of the coiled tubing are promoted.
Drawings
FIG. 1 is a schematic diagram of a jacket type coiled tubing unit according to the present invention;
FIG. 2 is a schematic view of a connector structure according to the present invention;
FIG. 3 is a schematic view of the structure of a negative angle zigzag groove in a connector of the present invention;
wherein: 1-a first continuous oil pipe section; 2-a second continuous oil pipe section; 3-connectors; 31-first negative angle zigzag grooves; 32-second negative angle zigzag grooves; 4-heating coil.
Detailed Description
So that those skilled in the art can appreciate the features and effects of the present invention, a general description and definition of the terms and expressions set forth in the specification and claims follows. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and in the event of a conflict, the present specification shall control.
The theory or mechanism described and disclosed herein, whether right or wrong, is not meant to limit the scope of the invention in any way, i.e., the present disclosure may be practiced without limitation to any particular theory or mechanism.
All features such as values, amounts, and concentrations that are defined herein in the numerical or percent ranges are for brevity and convenience only. Accordingly, the description of a numerical range or percentage range should be considered to cover and specifically disclose all possible sub-ranges and individual values (including integers and fractions) within the range.
Herein, unless otherwise indicated, "comprising," "including," "having," or similar terms encompass the meanings of "consisting of … …" and "consisting essentially of … …," e.g., "a includes a" encompasses the meanings of "a includes a and the other and" a includes a only.
In this context, not all possible combinations of the individual technical features in the individual embodiments or examples are described in order to simplify the description. Accordingly, as long as there is no contradiction between the combinations of these technical features, any combination of the technical features in the respective embodiments or examples is possible, and all possible combinations should be considered as being within the scope of the present specification.
The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
The following examples use instrumentation conventional in the art. The experimental methods, in which specific conditions are not noted in the following examples, are generally conducted under conventional conditions or under conditions recommended by the manufacturer. The following examples used various starting materials, unless otherwise indicated, were conventional commercial products, the specifications of which are conventional in the art. In the description of the present invention and the following examples, "%" means weight percent, and "parts" means parts by weight, and ratios means weight ratio, unless otherwise specified.
Example 1
The utility model provides a coat type coiled tubing repairing device, includes connecting piece 3 that the material is nickel titanium shape memory alloy, connecting piece 3 outside is equipped with heating coil 4, and inside cover has first continuous oil pipe section 1 and second continuous oil pipe section 2; the first continuous oil pipe section 1 and the second continuous oil pipe section 2 are identical in material, outer diameter and wall thickness;
the connecting piece 3 is annular, the transition temperature is equal to 45 ℃, the length is 110mm, the inner diameter of the connecting piece is 0.3mm smaller than the outer diameter of the continuous oil pipe section when the connecting piece is above the transition temperature (after memory recovery), the connecting piece 3 is subjected to reaming expansion deformation below the transition temperature before the continuous oil pipe repair construction, the inner diameter after deformation is greater than the outer diameter of the continuous oil pipe section by 0.4mm, and the wall thickness is the same as the wall thickness of the continuous oil pipe section; the material strength of the connecting piece 3 after memory recovery is more than or equal to the material strength of the continuous oil pipe section 1.
As shown in fig. 2 and 3, a plurality of negative angle zigzag grooves are respectively processed on two sides of the inner surface of the connecting piece 3, the first negative angle zigzag grooves 31 and the second negative angle zigzag grooves 32 on the left side and the right side are the same in shape, opposite in direction and 5 in number; the negative angle is-5 degrees, the slope angle is 30 degrees, the depth of the groove is 8% of the wall thickness, the width of the tooth top is 1.5mm, and the width of the tooth bottom is 2.5mm.
Example 2
The utility model provides a coat type coiled tubing repairing device, includes connecting piece 3 that the material is nickel titanium shape memory alloy, connecting piece 3 outside is equipped with heating coil 4, and inside cover has first continuous oil pipe section 1 and second continuous oil pipe section 2; the first continuous oil pipe section 1 and the second continuous oil pipe section 2 are identical in material, outer diameter and wall thickness;
the connecting piece 3 is in a circular ring shape, the transition temperature is equal to 50 ℃, the length is 90mm, the inner diameter of the connecting piece is 0.4mm smaller than the outer diameter of the continuous oil pipe section when the connecting piece is above the transition temperature (after memory recovery), the connecting piece 3 is subjected to reaming expansion deformation under the transition temperature before the continuous oil pipe repair construction, the inner diameter after deformation is greater than the outer diameter of the continuous oil pipe section by 0.25mm, and the wall thickness is the same as the wall thickness of the continuous oil pipe section; the material strength of the connecting piece 3 after memory recovery is more than or equal to the material strength of the continuous oil pipe section 1.
As shown in fig. 2 and 3, a plurality of negative angle zigzag grooves are respectively processed on two sides of the inner surface of the connecting piece 3, the first negative angle zigzag grooves 31 and the second negative angle zigzag grooves 32 on the left side and the right side are the same in shape, opposite in direction and 3 in number; the negative angle is-4 degrees, the slope angle is 30 degrees, the depth of the groove is 5% of the wall thickness, the width of the tooth top is 1mm, and the width of the tooth bottom is 2mm.
Example 3
The utility model provides a coat type coiled tubing repairing device, includes connecting piece 3 that the material is nickel titanium shape memory alloy, connecting piece 3 outside is equipped with heating coil 4, and inside cover has first continuous oil pipe section 1 and second continuous oil pipe section 2; the first continuous oil pipe section 1 and the second continuous oil pipe section 2 are identical in material, outer diameter and wall thickness;
the connecting piece 3 is in a circular ring shape, the transition temperature is equal to 60 ℃, the length is 80mm, the inner diameter of the connecting piece is 0.5mm smaller than the outer diameter of the continuous oil pipe section when the connecting piece is above the transition temperature (after memory recovery), the connecting piece 3 is subjected to reaming expansion deformation under the transition temperature before the continuous oil pipe repair construction, the inner diameter after deformation is greater than the outer diameter of the continuous oil pipe section by 0.2mm, and the wall thickness is the same as the wall thickness of the continuous oil pipe section; the material strength of the connecting piece 3 after memory recovery is more than or equal to the material strength of the continuous oil pipe section 1.
As shown in fig. 2 and 3, a plurality of negative angle zigzag grooves are respectively processed on two sides of the inner surface of the connecting piece 3, the first negative angle zigzag grooves 31 and the second negative angle zigzag grooves 32 on the left side and the right side are the same in shape, opposite in direction and 6 in number; the negative angle is-3 degrees, the slope angle is 30 degrees, the depth of the groove is 7% of the wall thickness, the width of the tooth top is 2mm, and the width of the tooth bottom is 2.5mm.
Example 4
Unlike the embodiment 1, the outer-casing coiled tubing repairing device is different in that the length of the connecting piece 3 is 150mm, and the number of the first negative angle saw-tooth grooves 31 and the second negative angle saw-tooth grooves 32 on the left side and the right side is 7; the negative angle was-3 °, the groove depth was 10% of the wall thickness, the tooth tip width was 2mm, the tooth bottom width was 3mm, and the remaining composition and materials were the same as in example 1.
Application example 1
The continuous related repair was performed using the jacketed coiled tubing repair device of example 1, comprising the steps of:
the first continuous oil pipe section 1 and the second continuous oil pipe section 2 are sleeved into the connecting piece 3 respectively, the sleeved depth is 1/2 of the length of the connecting piece 3 respectively, then the connecting piece 3 is heated by the heating coil 4, the heating temperature is 60 degrees, and the repairing of the continuous oil pipe is completed after the heat preservation is carried out for 19 minutes.
The connection strength of the repaired coiled tubing at the connecting piece 3 is greater than 80% of the tensile strength of the body of the coiled tubing section 1, and the sealing strength is greater than 85% of the internal pressure resistance strength of the coiled tubing section 1.
As shown in FIG. 1, the use condition of the repaired coiled tubing is-20-220 ℃.
Application example 2
The continuous related repair was performed using the jacketed coiled tubing repair device of example 1, comprising the steps of:
the first continuous oil pipe section 1 and the second continuous oil pipe section 2 are sleeved into the connecting piece 3 respectively, the sleeved depth is 1/2 of the length of the connecting piece 3 respectively, then the connecting piece 3 is heated by the heating coil 4, the heating temperature is 65 degrees, and after 20 minutes of heat preservation, the repair of the continuous oil pipe is completed.
Application example 3
The continuous related repair was performed using the jacketed coiled tubing repair device of example 3, comprising the steps of:
the first continuous oil pipe section 1 and the second continuous oil pipe section 2 are sleeved into the connecting piece 3 respectively, the sleeved depth is 1/2 of the length of the connecting piece 3 respectively, then the connecting piece 3 is heated by the heating coil 4, the heating temperature is 55 degrees, and the continuous oil pipe is repaired after heat preservation is carried out for 16 minutes.
Application example 4
The continuous related repair was performed using the jacketed coiled tubing repair device of example 4, comprising the steps of:
the first continuous oil pipe section 1 and the second continuous oil pipe section 2 are sleeved into the connecting piece 3 respectively, the sleeved depth is 1/2 of the length of the connecting piece 3 respectively, then the connecting piece 3 is heated by the heating coil 4, the heating temperature is 50 degrees, and after 15 minutes of heat preservation, the repair of the continuous oil pipe is completed.
The coiled tubing repaired by the embodiment has high reliability, the performance of the joint reaches more than 80% of that of the tube body, the reuse of the coiled tubing can be effectively realized, the cost of the coiled tubing is saved, and the field application and development of the coiled tubing are promoted.
The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (9)
1. The jacket type coiled tubing repairing device is characterized by comprising a connecting piece (3), wherein a heating coil (4) is arranged outside the connecting piece (3), and a first continuous oil pipe section (1) and a second continuous oil pipe section (2) are sleeved inside the connecting piece;
the first continuous oil pipe section (1) and the second continuous oil pipe section (2) are identical in material, outer diameter and wall thickness;
the connecting piece (3) is in a circular ring shape and is made of a one-way shape memory alloy material;
a plurality of first negative angle zigzag grooves (31) and second negative angle zigzag grooves (32) are respectively arranged on two sides of the inner surface of the connecting piece (3); the first negative angle sawtooth-shaped groove (31) and the second negative angle sawtooth-shaped groove (32) are the same in shape and opposite in direction.
2. The sleeved coiled tubing repairing device according to claim 1, wherein the transition temperature of the connecting piece (3) is greater than or equal to 45 ℃ and the length is 80-150 mm.
3. The sleeved coiled tubing repairing device according to claim 1, wherein the inner diameter of the connecting piece (3) after deformation below the transition temperature is 0.2-0.4 mm larger than the outer diameters of the first continuous oil pipe section (1) and the second continuous oil pipe section (2); after the memory of the connecting piece (3) is restored, the inner diameter of the connecting piece (3) is 0.3-0.5 mm smaller than the outer diameter of the continuous oil pipe section (1), and the wall thickness is the same as that of the first continuous oil pipe section (1) and the second continuous oil pipe section (2); the material strength of the connecting piece (3) after restoring the memory is more than or equal to the material strength of the first continuous oil pipe section (1) and the second continuous oil pipe section (2).
4. A casing coiled tubing unit according to claim 1, wherein the number of the first negative angle saw-tooth grooves (31) and the second negative angle saw-tooth grooves (32) is 3-7.
5. The sleeved coiled tubing repairing device according to claim 1, wherein the negative angles of the first negative angle sawtooth-shaped groove (31) and the second negative angle sawtooth-shaped groove (32) are minus 3 degrees to minus 5 degrees, the slope surface angle is 30 degrees, the groove depth is 5-10% of the wall thickness of the connecting piece (3), the tooth top width is 1-2mm, and the tooth bottom width is 2-3mm.
6. A coiled tubing retrieval method using an outer casing coiled tubing retrieval device according to any of claims 1 to 5, comprising the steps of:
firstly, deforming a connecting piece (3) below a transition temperature, then sleeving a first continuous oil pipe section (1) and a second continuous oil pipe section (2) into the connecting piece (3) respectively, wherein the sleeving depth is 1/2 of the length of the connecting piece (3), then heating the connecting piece (3) by adopting a heating coil (4), and obtaining the repaired continuous oil pipe after heat preservation.
7. The coiled tubing repair method of claim 6, wherein the heating temperature is 50-65 degrees and the holding time is 15-20 minutes.
8. The repaired coiled tubing obtained by the method for repairing the coiled tubing according to claim 6 or 7 is characterized in that the connection strength of the repaired coiled tubing at the connecting piece (3) is greater than 80% of the connection strength of the pipe body, and the sealing strength is greater than 85% of the internal pressure resistance strength of the pipe body.
9. The repaired coiled tubing of claim 8 wherein the service operating temperature of the repaired coiled tubing is from-20 ℃ to 220 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111679080.4A CN116412312A (en) | 2021-12-31 | 2021-12-31 | Sleeved coiled tubing repairing device and coiled tubing repairing method based on same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111679080.4A CN116412312A (en) | 2021-12-31 | 2021-12-31 | Sleeved coiled tubing repairing device and coiled tubing repairing method based on same |
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| Publication Number | Publication Date |
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| CN116412312A true CN116412312A (en) | 2023-07-11 |
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| CN202111679080.4A Pending CN116412312A (en) | 2021-12-31 | 2021-12-31 | Sleeved coiled tubing repairing device and coiled tubing repairing method based on same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117454561A (en) * | 2023-12-19 | 2024-01-26 | 成都信息工程大学 | Analysis method and system for ultimate extension distance of coiled tubing in horizontal well |
-
2021
- 2021-12-31 CN CN202111679080.4A patent/CN116412312A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117454561A (en) * | 2023-12-19 | 2024-01-26 | 成都信息工程大学 | Analysis method and system for ultimate extension distance of coiled tubing in horizontal well |
| CN117454561B (en) * | 2023-12-19 | 2024-03-08 | 成都信息工程大学 | Analysis method and system for ultimate extension distance of coiled tubing in horizontal well |
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