CN206017131U - A kind of pump hanging component and its chimney filter for coal bed gas well - Google Patents
A kind of pump hanging component and its chimney filter for coal bed gas well Download PDFInfo
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- CN206017131U CN206017131U CN201621032418.1U CN201621032418U CN206017131U CN 206017131 U CN206017131 U CN 206017131U CN 201621032418 U CN201621032418 U CN 201621032418U CN 206017131 U CN206017131 U CN 206017131U
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- chimney filter
- bed gas
- coal bed
- gas well
- hanging component
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Abstract
This utility model is related to a kind of pump hanging component and its chimney filter for coal bed gas well, and pump hanging component includes from top to bottom being sequentially connected：Down-hole pump, with coal bed gas suction inlet；Chimney filter, its are constituted by chimney filter body and located at the intrinsic some blend stops of chimney filter, and wherein, some blend stops rise arrangement in the shape of a spiral in chimney filter body interior, and the upper end of chimney filter is connected to the coal bed gas suction inlet of down-hole pump；Screen casing, its upper end are connected to the lower end of chimney filter；Sand sediment pipe, its upper end are connected to the lower end of screen casing；Plug, its are connected to the lower end of desilting pipe.By installing one section of chimney filter in the top of screen casing so that screen casing does not need bag gauze, even if the coal particle for having major diameter in process of production enters screen casing, when through filter tube, bulky grain solid material can also be leached by this section of chimney filter, reduce the risk of holddown.
Description
Technical field
This utility model belongs to coal-bed gas exploitation Technology field, hangs more particularly, to a kind of pump for coal bed gas well
Component and its chimney filter, be particularly well-suited to a large amount of coal dusts, coal particle, sand and other solid particle outputs coal bed gas well or its
The mining operation of its conventional oil gas well.
Background technology
As unconventional energy resource in the very fast of Chinese development, increasing coal bed gas well puts into mining to coal bed gas.
But, due to the exclusive characteristic of coal bed gas well so as to encounter the problem that many conventional gas and oils are rarely encountered during mining,
For example the problem of coal dust and coal cinder holddown, the problem of gas lock, etc..
At present, during the mining of coal bed gas well, in order to prevent the holddowns such as coal dust, it will usually using wire-wrapped screen or
Gauze is wrapped with common screen casing.But, as the aperture of wire-wrapped screen and gauze is smaller, often blocked by coal dust, affected
Normal water inlet, greatly reduces pump efficiency.If only using common screen casing, without the less wire-wrapped screen of aperture ratio and bag gauze, greatly
Granular solids will be easy to be inhaled in pump and cause holddown.
Utility model content
(1) technical problem to be solved
In order to solve the problems referred to above of prior art, this utility model provides a kind of pump hanging component for coal bed gas well,
Bulky grain solid material can be leached by which so as to be fallen in sand sediment pipe by gravity, reduce the risk of holddown.
This utility model also provides a kind of chimney filter of the pump hanging component for coal bed gas well, and which can be by bulky grain solid thing
Matter is leached so as to fallen in the sand sediment pipe of pump hanging component by gravity, reduces the risk of holddown.
(2) technical scheme
In order to achieve the above object, the main technical schemes that this utility model is adopted include：
A kind of chimney filter of the pump hanging component for coal bed gas well, its by chimney filter body and are located at the intrinsic some gears of chimney filter
Bar is constituted, and wherein, some blend stops rise arrangement in the shape of a spiral in chimney filter body interior.
The chimney filter of the pump hanging component for coal bed gas well of this utility model one embodiment, wherein：Some blend stops are in filter
Rise arrangement at least surrounding inside tube body in the shape of a spiral.
The chimney filter of the pump hanging component for coal bed gas well of this utility model one embodiment, wherein：Some blend stops are in filter
Inclination angle inside tube body along 10 °～80 ° rises arrangement in the shape of a spiral.
The chimney filter of the pump hanging component for coal bed gas well of this utility model one embodiment, wherein：Some blend stops are in filter
Inclination angle inside tube body along 45 ° ± 1.5 ° rises arrangement in the shape of a spiral.
The chimney filter of the pump hanging component for coal bed gas well of this utility model one embodiment, wherein：Between adjacent blend stop
Distance be less than 2mm.
The chimney filter of the pump hanging component for coal bed gas well of this utility model one embodiment, wherein：Chimney filter body is band
There is the tubing nipple of box cupling.
Wherein, tubing nipple offers some through through holes, and blend stop is tinsel, and tinsel is arranged in tubing nipple phase
To two through holes, and be welded in tubing nipple.
Wherein, the long 2m ± 0.2m of tubing nipple, diameter 73mm ± 3.5mm.
Wherein, stainless steel metal wire of the blend stop for 3～4mm of diameter.
This utility model also provides a kind of pump hanging component for coal bed gas well, and which includes from top to bottom being sequentially connected：
Down-hole pump, with coal bed gas suction inlet；
Chimney filter, is any one chimney filter aforementioned, and its upper end is connected to the coal bed gas suction inlet of down-hole pump；
Screen casing, its upper end are connected to the lower end of chimney filter；
Sand sediment pipe, its upper end are connected to the lower end of screen casing；
Plug, its are connected to the lower end of desilting pipe.
(3) beneficial effect
The beneficial effects of the utility model are：
By installing one section of chimney filter in the top of screen casing so that screen casing does not need bag gauze, even if having in process of production
The coal particle of major diameter enters screen casing, and when through filter tube, bulky grain solid material can also be leached this section of chimney filter (such as profit
Solid particle rising is stopped with the bonding jumper in chimney filter and is not drawn into pump barrel, the solid particle being obstructed meeting in the down stroke of pump
Because action of gravity is sunk in sand sediment pipe, ground is carried in workover treatment in future), reduce the risk of holddown.Due to subtracting
Lacked the number of times of holddown, the service life of down-hole pump has been extended so as to increased the production time of coal bed gas well, particularly coal seam
, at the initial stage that has just gone into operation, coal dust, sand, coal cinder quantum of output are big, often cause holddown for gas well.The use of this chimney filter is substantially reduced
This risk, makes coal bed gas well maintain good seriality at the mining initial stage, has not only ensured the high yield of coal bed gas well, very
The good benefit that improve coal bed gas well, while decreasing operations number, reduces the direct cost of coal bed gas well production.
Description of the drawings
Overall structure diagrams of the Fig. 1 for the pump hanging component of this utility model one embodiment；
Overall structure diagrams of the Fig. 2 for the chimney filter of this utility model one embodiment；
Internal structure schematic diagrams of the Fig. 3 for the chimney filter of this utility model one embodiment.
【Description of reference numerals】
1：Down-hole pump；
2：Chimney filter；
21：Chimney filter main body；
22：Perforation；
23：Blend stop；
24：Box cupling；
3：Screen casing；
4：Sand sediment pipe；
5：Plug.
Specific embodiment
In order to preferably explain this utility model, in order to understand, below in conjunction with the accompanying drawings, by specific embodiment, right
This utility model is described in detail.
Referring to Fig. 1, Fig. 2 and Fig. 3, the pump hanging component of this utility model one embodiment, it include from top to bottom connecting successively
Connect：
Down-hole pump, with coal bed gas suction inlet；
Chimney filter, its are constituted by chimney filter body and located at the intrinsic some blend stops of chimney filter, and its upper end is connected to down-hole pump
Coal bed gas suction inlet；
Screen casing, its upper end are connected to the lower end of chimney filter；
Sand sediment pipe, its upper end are connected to the lower end of screen casing；
Plug, its are connected to the lower end of desilting pipe.
Wherein, some blend stops rise arrangement in the shape of a spiral in chimney filter body interior.Can be transport screw or reverse acting spiral.
Wherein, some blend stops rise arrangement some weeks in the shape of a spiral in chimney filter body interior, are formed in chimney filter body interior
Filtration, preferably, in order to improve filter effect, at least helical form rises arrangement surrounding.
Wherein, some blend stops rise arrangement in chimney filter body interior in the shape of a spiral along predetermined inclination angle.Such as 10 °～80 °
Inclination angle, preferably, some blend stops rise arrangement in chimney filter body interior in the shape of a spiral along 45 ° ± 1.5 ° of inclination angle.
Wherein, preset distance is provided between adjacent blend stop, preferably, distance is less than 2mm, to improve filter effect.
During enforcement, chimney filter body can be common tubing nipple, for the ease of installing and using, can be in tubing nipple
One end is with box cupling (for example, it is possible to select long 2m ± 0.2m, the tubing nipple of diameter 73mm ± 3.5mm)；And blend stop can be
Tinsel (for example, it is possible to selecting the stainless steel metal wire of 3～4mm of diameter).It is not only convenient for implementing, and cost is relatively low.
Preferably, in order to improve filter effect, stainless steel metal wire is provided with spiral lamination from outer surface, more preferably,
Threaded stainless steel metal wire is set from one side, threaded one faces down setting.
In one embodiment of the present utility model, stainless steel flexible hose of the blend stop using diameter 3mm.
Wherein, tubing nipple offers some through through holes, and tinsel is arranged in two relative through holes of tubing nipple,
And it is welded in tubing nipple.
When being embodied as, this utility model can be implemented as follows：
1st, plain tubing pipe nipple D73mm is selected, and length 2m just can be with.Select the stainless steel metal wire one of 3～4mm of diameter
Disk；
2nd, spiralling line is drawn on tubing nipple, and the length of helix will ensure around tubing nipple at least surrounding；
3rd, get out the distance between the diameter through hole more slightly larger than bonding jumper diameter, drilling along the helix that finishes to be less than
2mm；
The 4th, tinsel is cut into the bonding jumper of predetermined length, length is matched with tubing nipple external diameter, quantity with drilling
Quantity matches；
5th, ready bonding jumper is penetrated in the drilling being drilled；
6th, point welds the two ends of bonding jumper successively so as to forms an entirety with tubing nipple, and is internally formed in oil pipe
One spiralling network structure formed by bonding jumper, chimney filter manufacture are completed；
7th, the chimney filter that manufacture is completed is connected in the epimere lower going-into-well of common screen casing, carries out normal mining.
Chimney filter of the present utility model, spiral therein can both be single-screw, or Double helix or three spirals, when for
During two or more spiral, the inclination angle of preferably each spiral is identical.
In sum, pump hanging component of the present utility model, by installing one section of chimney filter in the top of screen casing so that screen casing is not
Bag gauze is needed, even if the coal particle for having major diameter in process of production enters screen casing, when through filter tube, in this section of chimney filter
The filtration that some bonding jumpers are constituted can also stop solid particle and rise and be not drawn into pump barrel, and the solid particle being obstructed exists
Ground can be carried in workover treatment in future because action of gravity is sunk in sand sediment pipe during the down stroke of pump, so lead to
Filter tube filters out oarse-grained solid matter, just reduces the risk of holddown.Due to reducing the number of times of holddown, therefore extend
The service life of down-hole pump so as to increased the production time of coal bed gas well, particularly coal bed gas well just gone into operation just
Phase, coal dust, sand, coal cinder quantum of output are big, often cause the use of holddown, this chimney filter to greatly reduce this risk, make coal seam
Gas well maintains good seriality at the mining initial stage, has not only ensured the high yield of coal bed gas well, improves coal bed gas well
The benefit of well, while decreasing operations number, reduces the direct cost of coal bed gas well production.Especially, this utility model
Chimney filter can be processed using tinsel and tubing nipple these common used materials, design and manufacturing process is relatively easy, make
With convenient, with low cost, to the change of flow string in existing well less, but, the mining to coal bed gas well is very useful, significantly
Reduce because down-hole coal dust and coal cinder granule are inhaled into pump barrel and cause the risk of holddown, reduce operations number, therefore reduce
Stop the well time, increased gas production, save cost of winning.
Claims (10)
1. a kind of chimney filter of the pump hanging component for coal bed gas well, it is characterised in which by chimney filter body and is located at chimney filter body
Interior some blend stops are constituted, and wherein, some blend stops rise arrangement in the shape of a spiral in chimney filter body interior.
2. the chimney filter of the pump hanging component of coal bed gas well is used for as claimed in claim 1, it is characterised in that：Some blend stops are in chimney filter
Body interior rises arrangement at least surrounding in the shape of a spiral.
3. the chimney filter of the pump hanging component of coal bed gas well is used for as claimed in claim 1, it is characterised in that：Some blend stops are in chimney filter
Body interior rises arrangement in the shape of a spiral along 10 °～80 ° of inclination angle.
4. the chimney filter of the pump hanging component of coal bed gas well is used for as claimed in claim 3, it is characterised in that：Some blend stops are in chimney filter
Body interior rises arrangement in the shape of a spiral along 45 ° ± 1.5 ° of inclination angle.
5. the chimney filter of the pump hanging component of coal bed gas well is used for as claimed in claim 1, it is characterised in that：Between adjacent blend stop
Distance is less than 2mm.
6. the chimney filter of the pump hanging component of coal bed gas well is used for as claimed in claim 1, it is characterised in that：Chimney filter body be with
The tubing nipple of box cupling.
7. the chimney filter of the pump hanging component of coal bed gas well is used for as claimed in claim 6, it is characterised in that：Tubing nipple is offered
Some through through holes, blend stop are tinsel, and tinsel is arranged in two relative through holes of tubing nipple, and it is short to be welded in oil pipe
Section.
8. the chimney filter of the pump hanging component of coal bed gas well is used for as claimed in claim 7, it is characterised in that：The long 2m of tubing nipple ±
0.2m, diameter 73mm ± 3.5mm.
9. the chimney filter of the pump hanging component of coal bed gas well is used for as claimed in claim 7, it is characterised in that：Blend stop be diameter 3～
The stainless steel metal wire of 4mm.
10. a kind of pump hanging component for coal bed gas well, it is characterised in which includes from top to bottom being sequentially connected：
Down-hole pump, with coal bed gas suction inlet；
Chimney filter, is the chimney filter any one of claim 1 to 9, and its upper end is connected to the coal bed gas suction inlet of down-hole pump；
Screen casing, its upper end are connected to the lower end of chimney filter；
Sand sediment pipe, its upper end are connected to the lower end of screen casing；
Plug, its are connected to the lower end of desilting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032418.1U CN206017131U (en) | 2016-08-31 | 2016-08-31 | A kind of pump hanging component and its chimney filter for coal bed gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032418.1U CN206017131U (en) | 2016-08-31 | 2016-08-31 | A kind of pump hanging component and its chimney filter for coal bed gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206017131U true CN206017131U (en) | 2017-03-15 |
Family
ID=58258782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621032418.1U Active CN206017131U (en) | 2016-08-31 | 2016-08-31 | A kind of pump hanging component and its chimney filter for coal bed gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206017131U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114308606A (en) * | 2021-11-18 | 2022-04-12 | 华能碳资产经营有限公司 | Power plant coal conveying pipeline particle filtering and recycling device |
| CN114382449A (en) * | 2020-10-19 | 2022-04-22 | 北京中能万祺能源技术服务有限公司 | Reinjection water system for coal bed gas well exploitation |
-
2016
- 2016-08-31 CN CN201621032418.1U patent/CN206017131U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382449A (en) * | 2020-10-19 | 2022-04-22 | 北京中能万祺能源技术服务有限公司 | Reinjection water system for coal bed gas well exploitation |
| CN114308606A (en) * | 2021-11-18 | 2022-04-12 | 华能碳资产经营有限公司 | Power plant coal conveying pipeline particle filtering and recycling device |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |