CN202718664U - Flexible drainage system for coal-bed gas well - Google Patents
Flexible drainage system for coal-bed gas well Download PDFInfo
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- CN202718664U CN202718664U CN 201220358121 CN201220358121U CN202718664U CN 202718664 U CN202718664 U CN 202718664U CN 201220358121 CN201220358121 CN 201220358121 CN 201220358121 U CN201220358121 U CN 201220358121U CN 202718664 U CN202718664 U CN 202718664U
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- gas well
- bed gas
- extraction system
- coal bed
- sucker
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Abstract
The utility model relates to a flexible drainage system for a coal-bed gas well. The flexible drainage system comprises a ground device and an underground pumping unit, wherein the ground device is connected with the underground pumping unit through a flexible sucker rod. According to the flexible drainage system, the shaft bottom pulverized coal can be effectively discharged, the leftover on the pipe wall can be scraped to prevent a pump from being clamped; and moreover, the maintenance is convenient, only two persons maintains the system for 10 to 20 minutes for each time, stable and continuous drainage of the coal-bed gas well is guaranteed, and lots of manpower, material resources and financial resources are greatly saved. A steel wire rope is a signal cable, bottom-hole pressure and other production parameters can be easily obtained; and moreover, the energy is saved, and the power is saved by 30 percent compared with the conventional oil extraction machine.
Description
Technical field
The utility model relates to Coal-seam Gas Recovery Technologies, is specifically related to the flexible row of a kind of coal bed gas well extraction system.
Background technology
The row of coal bed gas well adopts and will aspire for stability, continuously, but conventional sucker rod adds the production scheme of pump, be easy to be subject to the impact of coal dust and cause the valve of pump poorly sealed, miss, just need the inspection pump this time, usually need 3-4 days time, so just coal bed gas well has been produced very large impact.Flexible row's extraction system can guarantee that the steady and continuous row of coal bed gas well adopts, and flexible wire ropes can replace cable, the important manufacturing parameters such as acquisition bottom pressure.
The utility model content
In order to solve the difficult problem that tradition row's extraction system can not continuous and stable production, the utility model adopts and has proposed the flexible row of a kind of coal bed gas well extraction system.
The flexible row of a kind of coal bed gas well extraction system comprises ground installation and down-hole oil-sucker, and described oil-sucker passes oil pipe and gos deep into the down-hole, and described ground installation is connected with the down-hole oil-sucker by flexible rod.
The above-mentioned flexible row of a kind of coal bed gas well extraction system, described flexible rod is wire rope.
The above-mentioned flexible row of a kind of coal bed gas well extraction system, described wire rope inside is provided with wire, and the gap filling between described wire and the steel wire has composite material, and the skin of described wire rope also is coated with high-abrasive material.
The above-mentioned flexible row of a kind of coal bed gas well extraction system also is provided with sensor on the oil-sucker of described down-hole, and described sensor installs the parameter that feedback transducer obtains earthward by flexible rod.
The above-mentioned flexible row of a kind of coal bed gas well extraction system, described oil-sucker lower end is connected with weighted lever.
The above-mentioned flexible row of a kind of coal bed gas well extraction system, described ground installation comprises the motor that is fixed on the derrick, the cylinder that is used for twining flexible rod, rope winding jib, brake, reaches automatic control device, described motor-driven drum rotating, rotatablely moving of cylinder drives the rotation of rope winding jib drive sprocket by the chain transmission, drive the chain gyration, slide block on the chain moves back and forth in company with the chain-driving runner frame, runner frame drives wire rope and twines at cylinder synchronously, has reduced because of the disorderly problem that causes the wire rope extruding of device row rope.
The above-mentioned flexible row of a kind of coal bed gas well extraction system, described oil-sucker connects from top to bottom successively is used for connecting the first the first coupling bar, row's powder valve, row's powder draining assembly that connects lock pin, shrink piston, get the powder sensor, riffle, get the powder assembly, function sensor, second connects lock pin, described second connects lock pin also is connected with weighted lever, described weighted lever is connected lock pin by the second coupling bar and connects with second, the lower end of the second coupling bar is fixed with weighted lever, and the weighted lever lower end is connected with the negative pressure valve extractor.。
The above-mentioned flexible row of a kind of coal bed gas well extraction system, described oil pipe is seamless link.
The utility model can effectively be discharged the shaft bottom coal dust, can prevent holddown to the legacy scraping on the tube wall; Be convenient to maintenance, keep in repair and got final product in one time 2 people 10-20 minutes, the steady and continuous that has guaranteed coal bed gas well is arranged and is adopted, and has greatly saved human and material resources, financial resources.Wire rope also is signal cable simultaneously, can easily obtain the manufacturing parameters such as flowing bottomhole pressure (FBHP).Energy conservation is put forward oil machine than routine and can be economized on electricity 30%.
Description of drawings
Fig. 1 is the structural representation of the utility model ground installation.
Fig. 2 is the annexation figure of weighted lever and wire rope.
Fig. 3 is the structural representation of down-hole oil-sucker.
Fig. 4 is the structural representation of weighted lever.
Among the figure, 1, motor, 2, travelling gear, 3, gearbox, 4, intelligent braking, 5, the brake connecting axle, 6, brake ribbon, 7, row's rope slide block chain.8, brake rim, 9, the slide block axle, 10, slide block, 11, rope winding jib, 12, wire rope, 13, the cylinder transmitting gear, 14, gearbox travelling gear, 15, cylinder, 16, slips, 17, fixing silk, 18, the assembly overcoat, 19, first connects lock pin, 20, the first coupling bar, 21, row's powder valve, 22, row's powder draining assembly, 23, shrink piston, 24, get the powder sensor, 25, riffle, 26, get the powder assembly, 27, function sensor, 28, second connects lock pin, 29, the second connecting rod, 30 weighted levers, 31, the negative pressure valve extractor.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, ground installation of the present utility model comprises the motor 1 that is fixed on the derrick, be used for twining the cylinder 15 of flexible rod wire rope 12, rope winding jib 11, brake, and automatic control device, described motor 1 drives gearbox 3 by travelling gear 2, further gearbox 3 head rolls 15 rotations, rotatablely moving of cylinder 15 drives the rotation of rope winding jib drive sprocket by 7 transmissions of row's rope slide block chain, drive the chain gyration, slide block on the chain, described slide block is arranged on slide block 10 axles 9, move back and forth in company with the chain-driving runner frame, runner frame drives wire rope and twines at cylinder 15 synchronously, has reduced because of the disorderly problem that causes the wire rope extruding of device row rope.The below of described cylinder 15 is provided with intelligent braking 4, and intelligent braking 4 is connected with brake connecting axle 5, and described brake connecting axle 5 is complementary with the brake rim 8 interior brake ribbons 6 at cylinder 15 two ends that arrange.
Flexible rod, single, single steel wire all adopt composite material to fill up the inner slit of wire rope fully when weaving, and at the outer integral coating wearing composite material of wire rope main body, make the wire rope compact internal structure, and intensity is high, outer smooth, and wellhead sealing is reliable.In order further to strengthen the sealing effectiveness of well head and the direct contact portion of wire rope, between wire rope and well head, be provided with sealing device, shown steel wire penetrating sealing device enters well head.
As shown in Figure 2, wire rope of the present utility model is connected with by slips 16 and connects the first connection lock pin 19, also is provided with fixing silk 17 and assembly overcoat 18 on the described slips 16, and described connection first connects lock pin 19 and is used for the connection oil-sucker.
Such as Fig. 3, Fig. 4, the structural representation of shown down-hole oil-sucker, the down-hole oil-sucker comprises the first coupling bar 20 that is used for connecting the first connection lock pin 19 that connects successively from top to bottom, row's powder valve 21, row's powder draining assembly 22, shrink piston 23, get powder sensor 24, riffle 25, get powder assembly 26, function sensor 27, second connects lock pin 28, described second connects lock pin 28 also is connected with weighted lever 30, described weighted lever 30 is connected lock pin 28 by the second coupling bar 29 and connects with second, the lower end of the second coupling bar 29 is fixed with weighted lever 30, and weighted lever 30 lower ends are connected with negative pressure valve extractor 31.
The utility model is to control motor 1 with automatic control device, makes wire rope drive transferring the degree of depth and the round frequency of control being arranged of down-hole oil-sucker, reaches conventional pumping unit row's powder draining purpose that is beyond one's reach.Its row's powder effect and anti-sticking effect energy-saving effect be absolute advantage all.
When swab is descending, when running into water and shaft bottom coal dust, be communicated to the ground switch board by sensor, by switch board control motor 1, regulate wire rope transfer the degree of depth and round frequency and shaft bottom swab open drag for the powder valve, sensor response ground switch board motor 1 drives wire rope 12 when repository is bought securities with all one's capital, sensor was passed to switch board and is opened row's powder valve 21 discharge coal dusts when swab was up to well head, finished once and did manual work.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. the flexible row of a coal bed gas well extraction system comprises ground installation and down-hole oil-sucker, and it is characterized in that: described oil-sucker passes oil pipe and gos deep into the down-hole, and described ground installation is connected with the down-hole oil-sucker by flexible rod.
2. a kind of coal bed gas well flexibility according to claim 1 is arranged extraction system, and it is characterized in that: described flexible rod is wire rope.
3. a kind of coal bed gas well flexibility according to claim 2 is arranged extraction system, and it is characterized in that: described wire rope inside is provided with wire, and the gap filling between described wire and the steel wire has composite material, and the skin of described wire rope also is coated with high-abrasive material.
4. each described a kind of coal bed gas well flexibility is arranged extraction system according to claim 1-3, and it is characterized in that: also be provided with sensor on the oil-sucker of described down-hole, described sensor installs the parameter that feedback transducer obtains earthward by flexible rod.
5. a kind of coal bed gas well flexibility according to claim 4 is arranged extraction system, and it is characterized in that: described oil-sucker lower end is connected with weighted lever.
6. each described a kind of coal bed gas well flexibility is arranged extraction system according to claim 1-3, it is characterized in that: described ground installation comprises the motor that is fixed on the derrick, be used for twining the cylinder of flexible rod, rope winding jib, brake, and automatic control device, described motor-driven drum rotating, rotatablely moving of cylinder drives the rotation of rope winding jib drive sprocket by the chain transmission, drive the chain gyration, slide block on the chain moves back and forth in company with the chain-driving runner frame, runner frame drives wire rope and twines at cylinder synchronously, has reduced because of the disorderly problem that causes the wire rope extruding of device row rope.
7. each described a kind of coal bed gas well flexibility is arranged extraction system according to claim 1-3, it is characterized in that: the first coupling bar that is used for connecting the first connection lock pin that described oil-sucker connects from top to bottom successively, row's powder valve, row's powder draining assembly, shrink piston, get the powder sensor, riffle, get the powder assembly, function sensor, second connects lock pin, described second connects lock pin also is connected with weighted lever, described weighted lever is connected lock pin by the second coupling bar and connects with second, the lower end of the second coupling bar is fixed with weighted lever, and the weighted lever lower end is connected with the negative pressure valve extractor.
8. each described a kind of coal bed gas well flexibility is arranged extraction system according to claim 1-3, and it is characterized in that: described oil pipe is seamless link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358121 CN202718664U (en) | 2012-07-24 | 2012-07-24 | Flexible drainage system for coal-bed gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358121 CN202718664U (en) | 2012-07-24 | 2012-07-24 | Flexible drainage system for coal-bed gas well |
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| Publication Number | Publication Date |
|---|---|
| CN202718664U true CN202718664U (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220358121 Expired - Fee Related CN202718664U (en) | 2012-07-24 | 2012-07-24 | Flexible drainage system for coal-bed gas well |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863548A (en) * | 2015-05-26 | 2015-08-26 | 王玉 | Automatic intermittent coalbed methane water draining and gas producing device |
| CN105525894A (en) * | 2014-10-23 | 2016-04-27 | 中国石油天然气股份有限公司 | Method for solving pump clamping problem of coal bed gas well screw pump |
| CN106837251A (en) * | 2017-01-12 | 2017-06-13 | 谭华 | A kind of closed bailing enters ring oil rig |
| CN109882132A (en) * | 2019-03-19 | 2019-06-14 | 中国地质大学（北京） | A kind of coal bed gas self-draining arrangement |
-
2012
- 2012-07-24 CN CN 201220358121 patent/CN202718664U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525894A (en) * | 2014-10-23 | 2016-04-27 | 中国石油天然气股份有限公司 | Method for solving pump clamping problem of coal bed gas well screw pump |
| CN104863548A (en) * | 2015-05-26 | 2015-08-26 | 王玉 | Automatic intermittent coalbed methane water draining and gas producing device |
| CN106837251A (en) * | 2017-01-12 | 2017-06-13 | 谭华 | A kind of closed bailing enters ring oil rig |
| CN106837251B (en) * | 2017-01-12 | 2022-11-22 | 谭华 | Closed bailing ring oil pumping device |
| CN109882132A (en) * | 2019-03-19 | 2019-06-14 | 中国地质大学（北京） | A kind of coal bed gas self-draining arrangement |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20130724 |