CN203403842U - Combined sand removal device for coalbed methane production - Google Patents
Combined sand removal device for coalbed methane production Download PDFInfo
- Publication number
- CN203403842U CN203403842U CN201320442620.1U CN201320442620U CN203403842U CN 203403842 U CN203403842 U CN 203403842U CN 201320442620 U CN201320442620 U CN 201320442620U CN 203403842 U CN203403842 U CN 203403842U
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- CN
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- Prior art keywords
- sucker rod
- associating
- coalbed methane
- removal device
- pump
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Abstract
Provided is a combined sand removal device for coalbed methane production. The combined sand removal device for coalbed methane production is a production construction device for coalbed methane of a coal mine, and solves the problems in the prior art. The combined sand removal device for coalbed methane production is composed of a combined pipe column, a sucker rod hanger, a pump and a circulator in a connected mode, wherein the sucker rod hanger is fixed to the upper end of the interior of the combined pipe column, the pump is connected with the lower portion of the sucker rod hanger, and the circulator is installed at the lower end of the interior of the combined pipe column.
Description
Technical field: the utility model relates to the mining construction technology of colliery coal bed gas, especially coal bed gas extraction associating sand washing machine.
Background technology: at present, the pressure break of conventional coal bed gas well is gone into operation and is divided into sand washing, lower pump two procedures later, generally need two day activity duration just can complete, in mining process, if there is coal dust or the problem of shaking out, need to examine pump and sand washing operation, working procedure is divided into: play former well casing post (comprising oil pipe, pump, sucker rod), sand washing, lower pump three process, construction period is generally at three to five days.
Summary of the invention: the purpose of this utility model is to provide a kind of labour intensity, energy-saving and cost-reducing coal bed gas extraction associating sand washing machine of reducing, it has solved the problem existing in current technology, the purpose of this utility model is to realize like this, it is to be formed by connecting by associating tubing string, sucker rod hanger, pump, circulator, upper end in associating tubing string is fixed wtih sucker rod hanger, the following pump that connecting of sucker rod hanger; Lower end in associating tubing string is installed with circulator.
Application process of the present utility model is, connects flow string at the bottom of lower going-into-well, carry out sand washing operation together by associating tubing string, after sand washing, will on flow string, carry to production position, and being lowered to sucker rod can produce; In mining process, associating tubing string can only need propose pump barrel by the sucker rod of former well and hang in the situation that not tripping out former well casing post, can continue sand washing operation.After sand washing finishes, upper lifting pipe post, to original production position, is laid down sucker rod hanger, deepens sucker rod and makes plunger enter pump barrel can to produce.Circulator adopts unique filtration and flow dividing structure, in sand washing and circulation time, liquid dispersion water conservancy diversion can be formed to fan-shaped impact zone, improves flush efficiency; During mining, during feed liquor, dispersed structure makes liquid enter intake from multiple directions, has expanded suction area and scope, has avoided that intake local velocity is too high causes sucking the generation that a large amount of coal dusts and impurity cause holddown accident.
Meaning of the present utility model is: application the present invention, can greatly reduce the operating cost of enterprise, reduce workman's labour intensity, energy-saving and cost-reducing, shorten the engineering time, the later operation engineering time of pressure break shortens one times than other technology, and the inspection pump engineering time during mining shortens three to five times than other technology; Guaranteed safety in production.
Accompanying drawing explanation: Fig. 1 is the structural representation of coal bed gas extraction associating sand washing machine.In figure 1, associating tubing string 2, sucker rod hanger 3, pump 4, circulator
The specific embodiment: embodiment 1, the utility model are to be formed by connecting by associating tubing string 1, sucker rod hanger 2, pump 3, circulator 4, and the upper end in associating tubing string 1 is fixed wtih sucker rod hanger 2, the following pump 3 that connecting of sucker rod hanger 2.
Embodiment 2, the lower end in associating tubing string 1 are installed with circulator 4.
Claims (2)
1. coal bed gas extraction is combined sand washing machine, it is to be formed by connecting by associating tubing string (1), sucker rod hanger (2), pump (3), circulator (4), it is characterized in that: the upper end in associating tubing string (1) is fixed wtih sucker rod hanger (2), the following pump (3) that connecting of sucker rod hanger (2).
2. coal bed gas extraction associating sand washing machine according to claim 1, is characterized in that: the lower end in associating tubing string (1) is installed with circulator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320442620.1U CN203403842U (en) | 2013-07-24 | 2013-07-24 | Combined sand removal device for coalbed methane production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320442620.1U CN203403842U (en) | 2013-07-24 | 2013-07-24 | Combined sand removal device for coalbed methane production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203403842U true CN203403842U (en) | 2014-01-22 |
Family
ID=49939781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320442620.1U Expired - Lifetime CN203403842U (en) | 2013-07-24 | 2013-07-24 | Combined sand removal device for coalbed methane production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203403842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397858A (en) * | 2013-07-24 | 2013-11-20 | 濮阳泰和油气工程有限公司 | Drainage and production combined sand washing machine for coal bed gas and method for applying drainage and production combined sand washing machine |
-
2013
- 2013-07-24 CN CN201320442620.1U patent/CN203403842U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397858A (en) * | 2013-07-24 | 2013-11-20 | 濮阳泰和油气工程有限公司 | Drainage and production combined sand washing machine for coal bed gas and method for applying drainage and production combined sand washing machine |
| CN103397858B (en) * | 2013-07-24 | 2015-11-04 | 濮阳泰和油气工程有限公司 | Coal bed gas extraction associating sand washing machine and application process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |