CN111577208B - Horizontal gas well is with flexible rotatory plunger drainage instrument - Google Patents
Horizontal gas well is with flexible rotatory plunger drainage instrument Download PDFInfo
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- CN111577208B CN111577208B CN202010408751.2A CN202010408751A CN111577208B CN 111577208 B CN111577208 B CN 111577208B CN 202010408751 A CN202010408751 A CN 202010408751A CN 111577208 B CN111577208 B CN 111577208B
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- plunger
- flexible
- measuring instrument
- pressure measuring
- ring
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- Engineering & Computer Science (AREA)
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to the technical field of gas production engineering, and belongs to a flexible rotary plunger drainage tool for a horizontal gas well. The plunger solves the problem that a traditional plunger cannot pass through an inclined section or a well section with large dog-leg degree in a horizontal gas well water drainage and gas production process. The pressure measuring instrument consists of a fishing head (1), a damping spring (2), an upper pressure cap (3), a pressure measuring instrument outer cylinder (4), a pressure measuring instrument (5), a lower pressure cap (6), a positioning joint (7), a flexible assembly upper joint (8), a gasket (9), a retention snap ring (10), metal rubber (11), a plunger tool ring (12), a flexible body (13), a first plunger tool ring (14) with a jet hole, a second plunger tool ring (15) with a jet hole, a flexible assembly lower joint (16) and a rotating tool (17).
Description
Technical Field
The invention relates to the technical field of gas production engineering, and belongs to a flexible rotary plunger drainage tool for a horizontal gas well.
Background
The plunger water draining and gas producing process is one intermittent liquid carrying and lifting method utilizing the energy of reservoir. At present, besides the traditional vertical well development, horizontal wells are also commonly used for developing natural gas resources on site. Traditional plunger gas lift instrument can effectively work in the vertical well, but when moving in the horizontal well, because the plunger itself is the rigidity assembly body, frictional resistance is great when the well section through making inclined section or dog-leg degree is great, probably leads to the descending speed to descend or can't pass through, and the plunger body wearing and tearing are serious to cause the liquid on plunger upper portion to leak out, the unable normal work of system, work efficiency descends.
Disclosure of Invention
The invention aims to provide a flexible rotary plunger drainage tool for a horizontal gas well, which can improve and overcome the defect that the existing plunger tool has poor adaptability when a horizontal well passes through an inclined section or a well section with a large dog-leg degree.
The invention is realized by the following technical scheme: a flexible rotary plunger drainage tool for a horizontal gas well comprises a fishing head, a damping spring, an upper pressing cap, a pressure measuring instrument outer cylinder, a pressure measuring instrument, a lower pressing cap, a positioning joint, a flexible assembly upper joint, a gasket, a retention snap ring, metal rubber, a plunger tool ring, a flexible body, a first plunger tool ring with a jet hole, a second plunger tool ring with a jet hole, a flexible assembly lower joint and a rotary tool, wherein the flexible assembly upper joint, the flexible body, the retention snap ring, the flexible assembly lower joint, the gasket, the metal rubber, the plunger tool ring, the first plunger tool ring with the jet hole and the second plunger tool ring with the jet hole form a flexible assembly part, the fishing head is in threaded connection with the pressure measuring instrument outer cylinder, the positioning joint is in threaded connection with the pressure measuring instrument outer cylinder, the upper pressing cap and the lower pressing cap are arranged in the pressure measuring instrument outer cylinder, the upper end and the lower end of the pressure measuring instrument outer cylinder respectively pass through the damping spring and the fishing head, The flexible body penetrates through a metal rubber, a plunger tool ring, a first plunger tool ring with jet holes and a second plunger tool ring with jet holes in staggered serial connection, 4 flexible bodies are uniformly distributed and arranged, gaskets are arranged at two ends of the flexible bodies, and a limiting position is fixed through a retention snap ring
The metal rubber material is a novel porous nonlinear elastic damping material, is prepared by a special forming process and has the metal performance of the material.
The flexible body is made of reinforced thermoplastic high density polyethylene having flexibility.
The metal rubber is of a space net structure, the outer diameter of the metal rubber is smaller than that of the plunger tool rings, and annular grooves are formed between the adjacent plunger tool rings.
The metal rubber and the plunger tool ring are both hollow annular structures.
The plunger tool ring and the metal rubber may be interchanged.
The first plunger tool ring with the injection holes and the second plunger tool ring with the injection holes are provided with the injection holes which are uniformly distributed in the radial direction.
The circumference of the rotary tool is provided with a diagonal groove.
Compared with the prior art, the invention has the following advantages:
the invention overcomes the defect that the existing rigid plunger can only be used for a vertical well, and ensures the smooth implementation of liquid drainage and gas production operation in a horizontal well. The tool has the advantages of flexibility, interchangeability of parts easy to wear, pressure measurement data storage in the shaft, constant contact with the inner wall of the shaft, good air tightness and lifting effect, rotation acceleration function in the lifting process of the tool and the like.
Description of the drawings: FIG. 1 is a schematic structural view of the present invention; FIG. 2 shows a flexible assembly member
A schematic diagram of (a); FIG. 3 is a radial cross-sectional view A-A of the second plunger tool ring 15 with injection holes; FIG. 4 is a radial cross-sectional view B-B of the first injection-port-containing plunger tool ring 14; fig. 5 is a radial sectional view of the metal rubber 11; FIG. 6 is a schematic view of the fixed connection of the ends of the flexible body 13; FIG. 7 shows the rotationTool 17 is shown schematically.
In the figure, 1-fishing head, 2-damping spring, 3-upper pressing cap, 4-outer cylinder of pressure measuring instrument, 5-pressure measuring instrument, 6-lower pressing cap, 7-positioning joint, 8-flexible assembly upper joint, 9-gasket, 10-retention snap ring, 11-metal rubber, 12-plunger tool ring, 13-flexible body, 14-first plunger tool ring with jet hole, 15-second plunger tool ring with jet hole, 16-flexible assembly lower joint, 17-rotary tool,
-a flexible assembly member.
The specific implementation mode is as follows: the invention will be further described with reference to the accompanying drawings in which: the invention comprises a fishing head 1, a damping spring 2, an upper pressure cap 3, a pressure measuring instrument outer cylinder 4, a pressure measuring instrument 5, a lower pressure cap 6, a positioning joint 7, a flexible assembly upper joint 8, a gasket 9, a retention snap ring 10, metal rubber 11, a plunger tool ring 12, a flexible body 13, a first plunger tool ring 14 with a jet hole, a second plunger tool ring 15 with a jet hole, a flexible assembly lower joint 16 and a rotary tool 17, wherein the flexible assembly upper joint 8, the flexible body 13, the retention snap ring 10, the flexible assembly lower joint 16, the gasket 9, the metal rubber 11, the plunger tool ring 12, the first plunger tool ring 14 with the jet hole and the second plunger tool ring 15 with the jet hole form a flexible assembly component
The fishing head 1 is in threaded connection with an outer cylinder 4 of a pressure measuring instrument, the positioning joint 7 is in threaded connection with the outer cylinder 4 of the pressure measuring instrument, an upper pressing cap 3 and a lower pressing cap 6 are arranged in the outer cylinder 4 of the pressure measuring instrument, the upper end and the lower end of the outer cylinder 4 of the pressure measuring instrument are respectively connected with the fishing head 1 and the positioning joint 7 through damping springs 2, the pressure measuring instrument 5 is arranged in the outer cylinder 4 of the pressure measuring instrument, an upper joint 8 of a flexible assembly is in threaded connection with the positioning joint 7, a lower joint 16 of the flexible assembly is in threaded connection with a rotary tool 17, a flexible body 13 penetrates through a metal rubber 11, a plunger tool ring 12, a first plunger tool ring 14 with injection holes and a second plunger tool ring 15 with injection holes in a staggered serial connection body, 4 flexible bodies 13 are uniformly distributed and arranged, and gaskets 9 are arranged at two ends of the flexible body 13 and fixed and limited through a retention snap ring 10.
The metal rubber 11 material is a novel porous nonlinear elastic damping material, is prepared by a special forming process, and has the metal performance of the material.
The flexible body 13 is made of reinforced thermoplastic high density polyethylene having flexibility.
The metal rubber 11 is a space net structure, and the outer diameter thereof is smaller than that of the plunger tool rings 12, and annular grooves are formed between the adjacent plunger tool rings 12.
The metal rubber 11 and the plunger tool ring 12 are both hollow ring structures.
The plunger tool ring 12 and the metal rubber 11 may be interchanged.
The first plunger tool ring 14 with injection holes and the second plunger tool ring 15 with injection holes are provided with injection holes which are uniformly distributed in the radial direction.
The circumference of the rotary tool 17 is provided with a diagonal groove.
When the tool is used on site, the technological process of a gas well wellhead is modified, the plunger water drainage and gas production technological measures are adapted, and the plunger tool is thrown from the wellhead and enters an oil pipe. When the plunger passes through the deflecting section or the well section with larger dog-leg degree, the plunger automatically deforms and bends under the action of the transverse external force of the wall of the oil pipe, the plunger is driven to integrally and smoothly pass through the deflecting section to reach the horizontal section, and the plunger tool ring 12 is still in contact with the shaft. When the plunger piston works, the plunger piston reciprocates up and down in the oil pipe to discharge accumulated liquid in a shaft, the accumulated liquid is collected and stored in real time along with the change of the well depth, and settled sand, scale and wax in the pipe are removed through the groove between the adjacent plunger piston tool rings 12. The plunger tool runs up and down in the shaft periodically, is easy to wear after long-term running because of always contacting with the well wall, and is periodically salvaged through steel wire operation to replace the worn plunger tool ring 12.
Claims (2)
1. The utility model provides a horizontal gas well is with flexible rotatory plunger drainage instrument which characterized in that: it comprises a fishing head (1), a damping spring (2), an upper pressure cap (3), a pressure measuring instrument outer cylinder (4), a pressure measuring instrument (5), a lower pressure cap (6), a positioning joint (7), a flexible assembly upper joint (8), a gasket (9) and a retention snap ring (10)The flexible assembly comprises metal rubber (11), a plunger tool ring (12), a flexible body (13), a first plunger tool ring (14) with an injection hole, a second plunger tool ring (15) with an injection hole, a flexible assembly lower joint (16) and a rotating tool (17), wherein the flexible assembly upper joint (8), the flexible body (13), a retention snap ring (10), the flexible assembly lower joint (16), a gasket (9), the metal rubber (11), the plunger tool ring (12), the first plunger tool ring (14) with the injection hole and the second plunger tool ring (15) with the injection hole form a flexible assembly part (15)
) The fishing head (1) is in threaded connection with an outer cylinder (4) of a pressure measuring instrument, a positioning connector (7) is in threaded connection with the outer cylinder (4) of the pressure measuring instrument, an upper pressing cap (3) and a lower pressing cap (6) are arranged in the outer cylinder (4) of the pressure measuring instrument, the upper end and the lower end of the outer cylinder (4) of the pressure measuring instrument are respectively connected with the fishing head (1) and the positioning connector (7) through damping springs (2), the pressure measuring instrument (5) is arranged in the outer cylinder (4) of the pressure measuring instrument, an upper connector (8) of a flexible assembly is in threaded connection with the positioning connector (7), a lower connector (16) of the flexible assembly is in threaded connection with a rotary tool (17), a flexible body (13) penetrates through a metal rubber (11), a plunger tool ring (12), a first serial connection body with jet holes and a second plunger tool ring (14) with jet holes, and a second serial connection body with the plunger tool ring (15) with the jet holes, and the 4 flexible bodies (13) are uniformly distributed, gaskets (9) are arranged at two ends of the flexible body (13) and are fixed and limited through a retention snap ring (10); the metal rubber (11) is made of porous nonlinear elastic damping materials, is of a spatial net structure, and can generate compression and stretching deformation according to the track of an oil pipe.
2. The flexible rotary plunger drainage tool for horizontal gas wells as claimed in claim 1, wherein: the metal rubber (11) and the plunger tool ring (12) are both hollow annular structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010408751.2A CN111577208B (en) | 2020-05-14 | 2020-05-14 | Horizontal gas well is with flexible rotatory plunger drainage instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010408751.2A CN111577208B (en) | 2020-05-14 | 2020-05-14 | Horizontal gas well is with flexible rotatory plunger drainage instrument |
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| Publication Number | Publication Date |
|---|---|
| CN111577208A CN111577208A (en) | 2020-08-25 |
| CN111577208B true CN111577208B (en) | 2022-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010408751.2A Active CN111577208B (en) | 2020-05-14 | 2020-05-14 | Horizontal gas well is with flexible rotatory plunger drainage instrument |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296943A (en) * | 2011-07-29 | 2011-12-28 | 中国石油天然气股份有限公司 | Plunger tool for gas recovery by liquid drainage in gas wells |
| CN202152671U (en) * | 2011-07-29 | 2012-02-29 | 中国石油天然气股份有限公司 | Plunger piston tool for gas well liquid drainage and gas recovery |
| CN102373894A (en) * | 2011-09-26 | 2012-03-14 | 中国石油天然气股份有限公司 | Feeding and refloating integrated type plunger tool and working method thereof |
| CN203114252U (en) * | 2013-02-22 | 2013-08-07 | 延长油田股份有限公司 | Sealed type water drainage and gas production plunger for natural gas horizontal well |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6497281B2 (en) * | 2000-07-24 | 2002-12-24 | Roy R. Vann | Cable actuated downhole smart pump |
| US6705404B2 (en) * | 2001-09-10 | 2004-03-16 | Gordon F. Bosley | Open well plunger-actuated gas lift valve and method of use |
| CA2428618C (en) * | 2003-05-13 | 2008-04-29 | Murray Ray Townsend | Plunger for gas wells |
| US7475731B2 (en) * | 2004-04-15 | 2009-01-13 | Production Control Services, Inc. | Sand plunger |
| US7395865B2 (en) * | 2005-02-24 | 2008-07-08 | Well Master Corp. | Gas lift plunger arrangement |
| US20080283236A1 (en) * | 2007-05-16 | 2008-11-20 | Akers Timothy J | Well plunger and plunger seal for a plunger lift pumping system |
| WO2011002562A1 (en) * | 2009-07-02 | 2011-01-06 | Exxonmobil Upstream Research Company | Plunger lift systems and methods |
| CN106499623B (en) * | 2016-10-14 | 2018-08-14 | 中国石油天然气股份有限公司 | A kind of gas lift liquid drainage production method of the plunger of included buffering |
-
2020
- 2020-05-14 CN CN202010408751.2A patent/CN111577208B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296943A (en) * | 2011-07-29 | 2011-12-28 | 中国石油天然气股份有限公司 | Plunger tool for gas recovery by liquid drainage in gas wells |
| CN202152671U (en) * | 2011-07-29 | 2012-02-29 | 中国石油天然气股份有限公司 | Plunger piston tool for gas well liquid drainage and gas recovery |
| CN102373894A (en) * | 2011-09-26 | 2012-03-14 | 中国石油天然气股份有限公司 | Feeding and refloating integrated type plunger tool and working method thereof |
| CN203114252U (en) * | 2013-02-22 | 2013-08-07 | 延长油田股份有限公司 | Sealed type water drainage and gas production plunger for natural gas horizontal well |
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| CN111577208A (en) | 2020-08-25 |
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