CN111827946B - Naked fish bone spur yield increasing and screen pipe well completion construction process - Google Patents
Naked fish bone spur yield increasing and screen pipe well completion construction process Download PDFInfo
- Publication number
- CN111827946B CN111827946B CN202010796048.3A CN202010796048A CN111827946B CN 111827946 B CN111827946 B CN 111827946B CN 202010796048 A CN202010796048 A CN 202010796048A CN 111827946 B CN111827946 B CN 111827946B
- Authority
- CN
- China
- Prior art keywords
- groups
- nipple
- fish bone
- improved
- screen pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 54
- 238000010276 construction Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000008569 process Effects 0.000 title claims abstract description 28
- 208000008558 Osteophyte Diseases 0.000 title claims description 14
- 201000010934 exostosis Diseases 0.000 title claims description 11
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 42
- 239000004576 sand Substances 0.000 claims abstract description 33
- 210000002445 nipple Anatomy 0.000 claims description 50
- 238000004519 manufacturing process Methods 0.000 claims description 26
- 238000005516 engineering process Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 7
- 230000000638 stimulation Effects 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 abstract description 5
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 abstract description 5
- 230000002265 prevention Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- -1 natural gas hydrates Chemical class 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- E21B43/25—Methods for stimulating production
-
- 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
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
-
- 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
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
-
- 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
- E21B43/08—Screens or liners
- E21B43/086—Screens with preformed openings, e.g. slotted liners
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of ocean oil and gas resources and sea area natural gas hydrate exploitation equipment, in particular to a naked eye fishbone yield increasing and screen pipe well completion construction process, which can effectively shorten the construction time of a shaft, reduce construction cost, simplify operation modes, improve working efficiency, simultaneously facilitate accelerating the industrialization process of energy exploitation and improve practicability and reliability by improving the equipment structure; the improved fish bone joint comprises a plurality of groups of improved fish bone joint short sections, a plurality of groups of mechanical sand control screen pipes, a continuous oil pipe and a guide shoe, wherein the positions of the plurality of groups of improved fish bone joint short sections and the plurality of groups of mechanical sand control screen pipes are staggered with each other and are connected end to end through buckles on the improved fish bone joint short sections and the plurality of groups of mechanical sand control screen pipes.
Description
Technical Field
The invention relates to the technical field of marine oil and gas resources and sea natural gas hydrate exploitation equipment, in particular to a technique for increasing production of naked-eye fishbone and completing a screen pipe.
Background
As is known, natural gas hydrate reservoirs in sea areas in China belong to deep water shallow soft stratum, the stratum fracture pressure is low, and the control of the construction pressure is particularly needed in the construction process. Reservoir reformation refers to economic and effective technical measures for reservoir characteristics and production conditions, and is researched and adapted to the reservoir characteristics and production conditions so as to improve connectivity between a shaft and a reservoir and achieve the purposes of increasing production and injection. Conventional reservoir reconstruction technologies such as reservoir fracturing and perforation are complex in construction process, long in period, easy to damage shallow and soft stratum, and capable of blocking oil and gas channels and simultaneously causing larger pollution to marine environment. The multi-branch fish bone spur production increasing technology has the advantages of strong diversion capability, simple construction, low cost and the like, and the flexible branch pipes with the diameter of a few millimeters and the length of a dozen meters are penetrated into the stratum to communicate with the reservoir body through the water jet technology, so that the reservoir layer can be effectively communicated without fracturing construction, the purpose of increasing production is achieved, and the multi-branch fish bone spur production increasing technology has a certain supporting effect on the stratum.
For the open hole completion mode, the maximum oil gas infiltration area can be obtained, the resistance of oil gas flowing into the well is reduced, and the advantages are obvious. However, in view of the fact that most natural gas hydrates in sea areas in China are filled in pores, the hydrates are stored in pore media, after the hydrates are decomposed by depressurization exploitation, the rock loses cementing effect to cause a large amount of sand discharge, and sand prevention measures are needed. At present, the traditional sand prevention measures are that a mechanical sand prevention screen pipe or a screen pipe gravel pack is put into sand prevention, after the construction of the reservoir transformation and production increase technology is finished, a shaft is cleaned for many times to remove impurities, and then a sand prevention screen pipe column is put into. The longer the soaking time of the hydrate reservoir in the drilling and completion fluid, the greater the damage to the reservoir.
Therefore, a sand control construction process suitable for the hydrate reservoir is required to be provided, the problems of long construction time, high cost and complex operation procedures of the well completion of the natural gas hydrate reservoir are solved, and the industrialization process of the natural gas hydrate is accelerated.
Disclosure of Invention
In order to solve the technical problems, the invention provides the naked eye fish bone spur yield increasing and screen pipe completion construction process which can effectively shorten the construction time of a shaft, reduce the construction cost, simplify the operation mode, improve the working efficiency, simultaneously facilitate the acceleration of the industrialization process of energy exploitation and improve the practicability and the reliability by improving the equipment structure.
The invention relates to a construction process for increasing production of naked fish bones and well completion of sieve tubes, which comprises a plurality of groups of improved fish bone nipple joints, a plurality of groups of mechanical sand control sieve tubes, a continuous oil tube and a guide shoe, wherein the positions of the groups of improved fish bone nipple joints and the groups of mechanical sand control sieve tubes are staggered with each other and are connected end to end through buckles on the positions of the groups of improved fish bone nipple joints, the guide shoe is arranged at the right end of the bottommost improved fish bone nipple joint, the continuous oil tube is placed into the plurality of groups of improved fish bone nipple joint joints and the groups of mechanical sand control sieve tubes, and the right end of the continuous oil tube is close to the left end of the guide shoe.
According to the construction technology for increasing production of naked fish bones and well completion of sieve tubes, the outer walls of improved fish bone pups are uniformly communicated with a plurality of groups of placing grooves, the inner sides of the plurality of groups of placing grooves are uniformly communicated with liquid inlets, the plurality of groups of liquid inlets are communicated with the inside of the improved fish bone pups, the left sides of the inside of the plurality of groups of placing grooves are provided with turbines, flexible branch pipes are arranged on the plurality of groups of turbines, the plurality of groups of flexible branch pipes are respectively positioned in the plurality of groups of placing grooves, the outer ends of the plurality of groups of flexible branch pipes are provided with drill bits, and the plurality of groups of drill bits are respectively positioned in the plurality of groups of placing grooves.
The mechanical sand control screen pipe can be any one of a precise composite screen pipe, a slotted screen pipe, a wire-wound screen pipe, a metal mesh screen pipe and a pre-filling screen pipe.
According to the open-hole fish bone stimulation and screen pipe well completion construction process, the number of the improved fish bone nipple and the number of the mechanical sand control screen pipes can be increased or decreased according to the thickness of the reservoir.
According to the open hole fish bone stimulation and screen pipe well completion construction process, two sets of hydraulic packers are arranged on the right side of a continuous oil pipe, are respectively positioned on the left side and the right side of the inside of a right side improved fish bone nipple, and are respectively positioned on the left side and the right side of a plurality of sets of liquid inlets on the right side improved fish bone nipple.
According to the open-hole fish bone stimulation and screen pipe well completion construction process, the positioner is arranged on the right side of the continuous oil pipe and is positioned on the right side of the right-side hydraulic packer.
The invention relates to a construction process for increasing production of bone spurs of naked eyes and well completion of a sieve tube, which comprises the following steps:
1) The assembled improved fishbone nipple, the mechanical sand control screen, the improved fishbone nipple, …, the improved fishbone nipple and the guide tube string are put into an open hole well until the designed length is reached;
2) After the pipe string is put in place, the coiled tubing is put to the upper part of the bottom guide shoe, after the position is determined by using the positioner, the coiled tubing is used for pressing the two sets of hydraulic packers, after the two sets of hydraulic packers are determined to be set at the two ends of the improved fishbone nipple at the lowest side, the ground pump is started to pump fluid into the pipe string;
3) The pressure in the pipe string is increased after the fluid is pumped, a plurality of groups of flexible branch pipes on the lowest improved fishbone nipple are released from a plurality of groups of corresponding placing grooves under the action of hydraulic pressure difference, and meanwhile, rock formations are continuously drilled through a drill bit, so that a small-diameter branch well hole is formed until the small-diameter branch well hole extends out completely;
4) After the construction of the first section of improved fishbone nipple is finished, the two groups of hydraulic packers are unsealed, then the coiled tubing string is lifted up, the coiled tubing string is positioned to the adjacent fishbone nipple through the positioner, the second section of yield increasing measure is implemented by repeating the previous construction procedure, and the like until the construction is finished.
Compared with the prior art, the invention has the beneficial effects that:
1) According to the open hole fishbone production increase and screen pipe completion construction process, the pipe string formed by the improved fishbone nipple and the mechanical sand control screen pipe is firstly put in, and then the construction operation is carried out on the improved fishbone nipple, so that frequent operation of putting in the pipe string for many times is avoided, the construction difficulty is greatly reduced, the operation time is saved, and meanwhile impurities which are difficult to remove and influence on the lowering of the subsequent mechanical sand control screen pipe are avoided after the storage and the construction are left in a shaft;
2) The invention relates to a construction process for increasing production of fishbone of an open hole well and well completion of a sieve tube, which is designed with an improved fishbone nipple with a special structure, is convenient for layered operation construction by using a continuous oil pipe to replace a conventional oil pipe, and can avoid the influence of a sieve tube channel on the diversion effect of high-pressure fluid required to enter the fishbone nipple. The normal construction procedure of reservoir reconstruction is ensured, and the underground tool is prevented from being damaged by a large amount of sand which is produced in the subsequent production process and is caused by the blockage of a passage due to the invasion of stratum sand into a shaft;
3) According to the open hole fishbone production increase and screen pipe well completion construction process, continuous oil pipes are used for injection, continuous oil pipe operation equipment does not need connecting buckles because the continuous oil pipe operation equipment is free of couplings, the injection speed is high, continuous circulation can be achieved, meanwhile, the characteristics of rigidity, flexible deflection and the like of the continuous oil pipes are utilized, the continuous oil pipe production increase and screen pipe well completion construction process can be well applied to highly-inclined wells and horizontal wells, the operation efficiency is greatly improved, and meanwhile, the cost is reduced;
4) Through improving equipment structure, can effectively shorten pit shaft engineering time, reduce construction cost, simplify the operation, improve work efficiency, conveniently accelerate the industrialization process of energy exploitation simultaneously, improve practicality and reliability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of the improved fishbone nipple of FIG. 1;
FIG. 3 is an enlarged right-hand cross-sectional schematic view of the improved fishbone sub of FIG. 2;
the reference numerals in the drawings: 1. improving the fishbone nipple; 101. a flexible branch pipe; 102. a turbine; 103. a liquid inlet; 2. mechanical sand control screen pipe; 3. a coiled tubing; 301. a hydraulic packer; 302. a positioner; 4. and (5) guiding shoes.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1 to 3, the construction process for increasing production of naked eyes fish bone and completing a screen pipe comprises a plurality of groups of improved fish bone nipple segments 1, a plurality of groups of mechanical sand control screen tubes 2, a continuous oil tube 3 and a guide shoe 4, wherein the positions of the groups of improved fish bone nipple segments 1 and the groups of mechanical sand control screen tubes 2 are staggered with each other and are connected end to end through buckles on the positions, the guide shoe 4 is arranged at the right end of the bottommost improved fish bone nipple segment 1, the continuous oil tube 3 is lowered into the plurality of groups of improved fish bone nipple segments 1 and the groups of mechanical sand control screen tubes 2, and the right end of the continuous oil tube 3 is close to the left end of the guide shoe 4; the guide shoe 4 can guide the guide tube string to smoothly go in.
According to the technology for improving the production increase of the fish bone by naked eyes and completing the well screen pipe, a plurality of groups of placing grooves are uniformly communicated on the outer wall of the improved fish bone pup joint 1, the inner sides of the plurality of groups of placing grooves are respectively communicated with a liquid inlet 103, the plurality of groups of liquid inlets 103 are respectively communicated with the inside of the improved fish bone pup joint 1, the left side of the inside of the plurality of groups of placing grooves is respectively provided with a turbine 102, the plurality of groups of turbines 102 are respectively provided with a flexible branch pipe 101, the plurality of groups of flexible branch pipes 101 are respectively positioned in the plurality of groups of placing grooves, the outer ends of the plurality of groups of flexible branch pipes 101 are respectively provided with a drill bit, and the plurality of groups of drill bits are respectively positioned in the plurality of groups of placing grooves.
According to the technology for the production increase of the bone spur of the naked eye fish and the well completion construction of the sieve tube, the mechanical sand control sieve tube 2 can be any one type of a precise composite sieve tube, a slotted sieve tube, a wire-wound sieve tube, a metal mesh sieve tube and a pre-filling sieve tube.
According to the technology for increasing production of the naked fish bone and completing the well of the sieve tube, the number of the improved fish bone nipple 1 and the mechanical sand control sieve tube 2 can be increased or decreased according to the thickness of a reservoir.
According to the construction process for increasing production of naked fish bone and completing a sieve tube, two sets of hydraulic packers 301 are arranged on the right side of a continuous oil pipe 3, the two sets of hydraulic packers 301 are respectively positioned on the left side and the right side of the inside of a right side improved fish bone nipple 1, and the two sets of hydraulic packers 301 are respectively positioned on the left side and the right side of a plurality of groups of liquid inlets 103 on the right side improved fish bone nipple 1.
According to the construction process for the production increase of the naked fish bone and the well completion of the sieve tube, the positioner 302 is arranged on the right side of the continuous oil pipe 3, and the positioner 302 is positioned on the right side of the right hydraulic packer 301.
The invention relates to a construction process for increasing production of bone spurs of naked eyes and well completion of a sieve tube, which comprises the following steps:
1) The assembled improved fishbone nipple 1, the mechanical sand control screen 2, the improved fishbone nipple 1, the … and the improved fishbone nipple 1 and the guide shoe 4 pipe string are put into an open hole well until the designed length is reached;
2) After the pipe string is put in place, the coiled tubing 3 is put to the upper part of the bottom guide shoe 4, the position is determined by the positioner 302, then the coiled tubing 3 is used for pressing the two sets of hydraulic packers 301, and after the two sets of hydraulic packers 301 are determined to be set at the two ends of the improved fishbone nipple 1 at the lowest side, the ground pump is started to pump fluid into the pipe string;
3) The pressure in the pipe string is increased after the fluid is pumped, a plurality of groups of flexible branch pipes 101 on the lowest improved fishbone nipple 1 are released from a plurality of groups of corresponding placing grooves under the action of hydraulic pressure difference, and simultaneously, rock formations are continuously drilled through a drill bit, so that a small-diameter branch well hole is formed until the small-diameter branch well hole extends completely;
4) After the construction of the first-section improved fishbone nipple 1 is finished, the two groups of hydraulic packers 301 are unsealed, the string of the continuous oil pipe 3 is lifted up, the string is positioned to the adjacent fishbone nipple through the positioner 302, the second-section yield increasing measure is implemented by repeating the previous construction procedure, and the like until the construction is finished.
The main functions realized by the invention are as follows: through improving equipment structure, can effectively shorten pit shaft engineering time, reduce construction cost, simplify the operation, improve work efficiency, conveniently accelerate the industrialization process of energy exploitation simultaneously, improve practicality and reliability.
The installation mode, the connection mode or the setting mode of the technology for increasing the production of the bone spur of the naked eye fish and completing the well of the sieve tube are all common mechanical modes, and can be implemented as long as the beneficial effects of the technology can be achieved.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (4)
1. The construction process is characterized in that the construction tool comprises a plurality of groups of improved fish bone nipple (1), a plurality of groups of mechanical sand control screens (2), a continuous oil pipe (3) and a guide shoe (4), wherein the positions of the groups of improved fish bone nipple (1) and the groups of mechanical sand control screens (2) are staggered with each other and are connected end to end through buckles on the positions, the guide shoe (4) is arranged at the right end of the bottommost improved fish bone nipple (1), the continuous oil pipe (3) is lowered into the plurality of groups of improved fish bone nipple (1) and the groups of mechanical sand control screens (2), and the right end of the continuous oil pipe (3) is close to the left end of the guide shoe (4);
the improved fishbone nipple (1) of the construction tool is provided with a plurality of groups of placing grooves in a uniform communication manner on the outer wall, the inner sides of the plurality of groups of placing grooves are provided with liquid inlets (103) in a communication manner, the plurality of groups of liquid inlets (103) are communicated with the inside of the improved fishbone nipple (1), the left side of the inside of the plurality of groups of placing grooves is provided with turbines (102), the plurality of groups of turbines (102) are provided with flexible branch pipes (101), the plurality of groups of flexible branch pipes (101) are respectively positioned in the plurality of groups of placing grooves, the outer ends of the plurality of groups of flexible branch pipes (101) are provided with drill bits, and the plurality of groups of drill bits are respectively positioned in the plurality of groups of placing grooves;
two sets of hydraulic packers (301) are arranged on the right side of the coiled tubing (3), the two sets of hydraulic packers (301) are respectively positioned on the left side and the right side of the inside of the right side improved fish bone nipple (1), and the two sets of hydraulic packers (301) are respectively positioned on the left side and the right side of a plurality of groups of liquid inlets (103) on the right side improved fish bone nipple (1);
the right side of the coiled tubing (3) is provided with a locator (302), and the locator (302) is positioned on the right side of the right-side hydraulic packer (301).
2. The technology for production increase of open-hole fish bone and screen pipe completion construction according to claim 1, wherein the mechanical sand control screen pipe (2) can be any one of a precise composite screen pipe, a slotted screen pipe, a wire-wound screen pipe, a metal mesh screen pipe and a pre-filled screen pipe.
3. The open-hole fish bone stimulation and screen pipe completion construction process according to claim 2, wherein the number of the improved fish bone stimulation pup joint (1) and the mechanical sand control screen pipe (2) can be increased or decreased according to the reservoir thickness.
4. A process for the production increase of bone spurs of naked fish and the completion construction of a sieve tube, which comprises the following steps:
1) The assembled improved fish bone spur nipple (1) +the mechanical sand control screen pipe (2) +the improved fish bone spur nipple (1) + … + the improved fish bone spur nipple (1) +the guide shoe (4) is connected in a pipe string into an open hole well until the designed length is reached;
2) After the pipe string is put into place, the coiled tubing (3) is put to the upper part of the bottom guide shoe (4), after the position is determined by the positioner (302), the coiled tubing (3) is used for pressing the two sets of hydraulic packers (301), and after the two sets of hydraulic packers (301) are determined to be set at the two ends of the improved fishbone nipple (1) at the lowest side, the ground is pumped into the pipe string by a pump;
3) The pressure in the pipe string is increased after the fluid is pumped, under the action of hydraulic pressure difference, a plurality of groups of flexible branch pipes (101) on the lowest improved fish bone spur nipple (1) are released from a plurality of groups of corresponding placing grooves, and simultaneously, rock formations are continuously drilled through a drill bit, so that a small-diameter branch well hole is formed until the small-diameter branch well hole is completely extended;
4) After the construction of the first section of improved fishbone nipple (1) is finished, the two groups of hydraulic packers (301) are unsealed, then the string of the continuous oil pipe (3) is lifted, the string is positioned to the adjacent fishbone nipple through the positioner (302), the second section of yield increasing measure is implemented by repeating the previous construction procedure, and the like until the construction is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010796048.3A CN111827946B (en) | 2020-08-10 | 2020-08-10 | Naked fish bone spur yield increasing and screen pipe well completion construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010796048.3A CN111827946B (en) | 2020-08-10 | 2020-08-10 | Naked fish bone spur yield increasing and screen pipe well completion construction process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111827946A CN111827946A (en) | 2020-10-27 |
| CN111827946B true CN111827946B (en) | 2023-12-22 |
Family
ID=72919923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010796048.3A Active CN111827946B (en) | 2020-08-10 | 2020-08-10 | Naked fish bone spur yield increasing and screen pipe well completion construction process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111827946B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282720B (en) * | 2020-11-19 | 2023-11-10 | 广州海洋地质调查局 | Site construction method of fishbone well and corresponding matched equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429848A (en) * | 2007-11-06 | 2009-05-13 | 中国石油大学(北京) | Method apparatus and for hydraulic jet side drilling radial branching borehole |
| FR3017411A1 (en) * | 2014-02-07 | 2015-08-14 | Perf Energy | METHOD AND DEVICE FOR EXTRACTING HYDROCARBONS USING A HEATING SIDE DRILLING TOOL |
| CN106703720A (en) * | 2016-12-02 | 2017-05-24 | 中国石油大学(北京) | Well drilling device with steel wire transmission function |
| CN110344755A (en) * | 2019-06-19 | 2019-10-18 | 中国海洋石油集团有限公司 | A kind of tubodrill formula multiple-limb slim hole completion tool and operating method |
| CN110541673A (en) * | 2019-09-24 | 2019-12-06 | 重庆科技学院 | Releasable multi-branch fishbone drilling connecting tool |
-
2020
- 2020-08-10 CN CN202010796048.3A patent/CN111827946B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429848A (en) * | 2007-11-06 | 2009-05-13 | 中国石油大学(北京) | Method apparatus and for hydraulic jet side drilling radial branching borehole |
| FR3017411A1 (en) * | 2014-02-07 | 2015-08-14 | Perf Energy | METHOD AND DEVICE FOR EXTRACTING HYDROCARBONS USING A HEATING SIDE DRILLING TOOL |
| CN106703720A (en) * | 2016-12-02 | 2017-05-24 | 中国石油大学(北京) | Well drilling device with steel wire transmission function |
| CN110344755A (en) * | 2019-06-19 | 2019-10-18 | 中国海洋石油集团有限公司 | A kind of tubodrill formula multiple-limb slim hole completion tool and operating method |
| CN110541673A (en) * | 2019-09-24 | 2019-12-06 | 重庆科技学院 | Releasable multi-branch fishbone drilling connecting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111827946A (en) | 2020-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110397428B (en) | Displacement coalbed methane yield increasing method for coalbed methane jointly mined by vertical well and U-shaped butt well | |
| CN113738317A (en) | Method for combined exploitation of deep coal bed gas and dry hot rock type geothermal | |
| US11408264B2 (en) | Volumetric fracturing method of temporarily plugging and diverting through functional slick water with oil displacement agent injected simultaneously | |
| CN103362538A (en) | Pressure alternate gas exhausting method by slotting and fracturing coal seams | |
| CN106761612B (en) | The asynchronous water injection oil extraction method of double different wells of pressure break horizontal well of zip mode cloth seam | |
| CN109505578B (en) | Repeated fracturing method for realizing lateral residual oil potential excavation of crack of ultra-low permeability oil reservoir old well | |
| CN114961682B (en) | Hydraulic fracturing device and fracturing construction method thereof | |
| CN111827946B (en) | Naked fish bone spur yield increasing and screen pipe well completion construction process | |
| CN215672164U (en) | Jet pump lifting process pipe column capable of being repeatedly acidified in offshore oil field | |
| CN111594123A (en) | Jet staged fracturing method for bare hole immovable pipe column of ultra-short radius horizontal well | |
| CN102434192A (en) | Device and method for enhancing coal seam fracturing effect | |
| CN113586022B (en) | Method and device for improving yield of natural gas hydrate reservoir through freezing fracturing | |
| CN105649625B (en) | A kind of high-low pressure subregion fracturing anatonosis formula coal-bed flooding method | |
| CN210738530U (en) | Filling tool and well completion string | |
| CN105041274A (en) | Short-range two-layer oil-gas reservoir commingled production technique | |
| CN217001800U (en) | Self-flowing water injection device of ultra-deep fracture-cavity reservoir oil well | |
| CN110608027A (en) | Large-scale hydraulic fracturing permeability-increasing pre-gas-pumping treatment process for directional ultra-long drilling of roadway | |
| CN212837749U (en) | Barefoot fishbone yield increasing and sieve tube well completion | |
| CN112324415B (en) | Combined segmented reconstruction method for selective repeated reconstruction of old well | |
| CN113309502A (en) | Fracturing method for increasing transformation volume of deep shale gas reservoir | |
| CA2911615C (en) | Method of enhanced oil recovery from lateral wellbores | |
| CN221074201U (en) | Layered filling sand control pipe column for highly deviated well | |
| RU2616016C1 (en) | Recovery method for solid carbonate reservoirs | |
| CN112780248B (en) | Coal bed gas horizontal well and construction method thereof | |
| CN112282720B (en) | Site construction method of fishbone well and corresponding matched equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |