CN206592271U - A kind of rod-type pumping unit suitable for sanding formation - Google Patents
A kind of rod-type pumping unit suitable for sanding formation Download PDFInfo
- Publication number
- CN206592271U CN206592271U CN201720227465.XU CN201720227465U CN206592271U CN 206592271 U CN206592271 U CN 206592271U CN 201720227465 U CN201720227465 U CN 201720227465U CN 206592271 U CN206592271 U CN 206592271U
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- China
- Prior art keywords
- rod
- seating nipple
- piston
- pumping unit
- type pumping
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Abstract
The utility model provides a kind of rod-type pumping unit suitable for sanding formation, is related to oil tool research field.A kind of rod-type pumping unit suitable for sanding formation described in utility model includes tubing anchor, sucker rod, oil pipe, piston, travelling valve, seating nipple, standing valve, sand stop cover.The sucker rod lower end is provided with piston, and piston lower portion is provided with travelling valve.The piston and travelling valve are stretched into seating nipple.The seating nipple lower end is provided with standing valve.The seating nipple bottom is provided with tubing anchor, and seating nipple is anchored in oil pipe by oil pipe.The standing valve bottom is provided with sand stop cover, prevents fragmented rock particle from entering seating nipple.The rock particles of stratum crushing can be blocked in outside sand stop cover by the utility model, prevent fragmented rock particle from entering seating nipple, play a part of reduction rock particles rod-type pumping unit is worn and torn and destroyed, from the use time of extension rod type oil well pump, it is ensured that production is smoothed out.
Description
Technical field
The utility model is related to oil tool research field, more particularly to a kind of rod pumping suitable for sanding formation
Pump.
Background technology
Rod-type pumping unit is the driven plunger oil-well pump that pumped using sucker rod.Rod-type pumping unit has
The characteristics of simple in construction, strong adaptability, convenient maintenance management and long lifespan, be that the widest machinery of current domestic and international application is adopted
One of oily mode.By whole rod-type pumping unit after ground assembling is complete, the precalculated position inserted with rod string in oil pipe is consolidated
It is fixed, therefore also known as " inserted pump "., can not lower oil tube when removing pump operation.Rod-type pumping unit inspection pump is convenient, it is adaptable to lower pump
Depth is larger, the less oil well of yield.
Shake out be oil gas water well in process of production, because producing pressure differential is excessive, sandstone oil-gas Layer rock loose cementation etc.
Reason, makes reservoir sand flow into pit shaft, blocks gas channel, the phenomenon for causing Oil/gas Well to stop production.Weakly consolidated sand formation or sand
Conglomerate formation strength is relatively low, phenomenon of easily being shaked out in oil well production process, and this stratum is referred to as sanding formation.Sanding formation
The fractured rock particle of generation enters rod-type pumping unit with gas stream, causes the abrasion of piston and seating nipple, causes pump efficiency to drop
It is low, the problems such as damaging rod-type pumping unit.
Utility model content
The purpose of this utility model is to provide a kind of rod-type pumping unit suitable for sanding formation, and it can prevent weak glue
The rock particles of knot stratum crushing enters rod-type pumping unit, so as to reduce abrasion of the rock particles to rod-type pumping unit, extension rod
The service life of formula oil well pump, it is ensured that what oil field was produced is smoothed out.
A kind of rod-type pumping unit suitable for sanding formation described in utility model includes tubing anchor, sucker rod, oil pipe, work
Plug, travelling valve, seating nipple, standing valve, sand stop cover.
The sucker rod lower end is provided with piston, and piston is provided with travelling valve.
The piston and travelling valve are stretched into seating nipple.
The seating nipple lower end is provided with standing valve.
The seating nipple length is 1.1 meters.
The seating nipple bottom is provided with tubing anchor, and seating nipple is anchored in oil pipe by oil pipe.
The standing valve bottom is provided with sand stop cover, prevents fragmented rock particle from entering seating nipple.
The sand stop cover is made up of hard alloy steel.
The sand stop cover is provided with oil flow hole, for crude oil flow.
During upstroke, sucker rod band piston and travelling valve are up, and work cylinder pressure declines, and travelling valve is closed, and works as work
When making cylinder pressure less than standing valve inlet pressure, standing valve is opened, and liquid enters in seating nipple.During down stroke, sucker rod band
Piston and travelling valve are descending, and work cylinder pressure rise, travelling valve is opened, and standing valve is closed, and liquid is discharged out of seating nipple
In oil pipe more than to piston.
The characteristics of the utility model and advantage are：
The utility model uses above technical scheme so that during rod pumping pump work, the rock particles quilt of stratum crushing
It is blocked in outside sand stop cover, seating nipple, abrasion and destruction of the reduction rock particles to rod-type pumping unit, so as to extend will not be entered
The use time of rod-type pumping unit, it is ensured that production is smoothed out.
Brief description of the drawings
The following drawings is only intended to, in doing utility model schematic illustration and explanation, not limit model of the present utility model
Enclose.
A kind of rod-type pumping unit suitable for sanding formation that Fig. 1 provides for the utility model.
In figure：1- oil pipes, 2- sucker rods, 3- pistons, 4- travelling valves, 5- seating nipples, 6- standing valves, 7- sand stop covers, 8- oil
Pipe anchor.
Embodiment
Illustrate specific embodiment of the present utility model below in conjunction with the accompanying drawings.The utility model is related to a kind of suitable for shaking out
The rod-type pumping unit on stratum, including oil pipe 1, sucker rod 2, piston 3, travelling valve 4, seating nipple 5, standing valve 6, sand stop cover 7, oil pipe
Anchor 8.
The lower end of sucker rod 2 is provided with piston 3, and the lower end of piston 3 is provided with travelling valve 4.
The piston 3 and travelling valve 4 are stretched into seating nipple 5.
The lower end of seating nipple 5 is provided with standing valve 6.
The length of seating nipple 5 is 1.1 meters.
The bottom of seating nipple 5 is provided with tubing anchor 8, and seating nipple 5 is fixed in oil pipe 1 by tubing anchor 8.
The bottom of standing valve 6 is provided with sand stop cover 7, prevents fragmented rock particle from entering seating nipple 5.
The sand stop cover 7 has hard alloy steel to be made.
The sand stop cover 7 is provided with oil flow hole, for crude oil flow.
During upstroke, sucker rod 2 is up with piston 3 and travelling valve 4, and pressure declines in seating nipple 5, and travelling valve 4 is closed,
When pressure is less than 6 inlet pressure of standing valve in seating nipple 5, standing valve 6 is opened, and liquid enters in seating nipple 5.During down stroke,
Sucker rod 2 is descending with piston 3 and travelling valve 4, and pressure rise in seating nipple 5, travelling valve 4 is opened, and standing valve 6 is closed, liquid
It is discharged to out of seating nipple 5 in the oil pipe 1 of piston more than 3.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (3)
1. a kind of rod-type pumping unit suitable for sanding formation, including tubing anchor, sucker rod, oil pipe, piston, travelling valve, work
Cylinder, standing valve, sand stop cover, it is characterised in that the sucker rod lower end is provided with piston, piston is provided with travelling valve, the piston
Stretched into travelling valve in seating nipple, the seating nipple lower end is provided with standing valve, the seating nipple lower end is provided with tubing anchor, seating nipple
It is anchored on by oil pipe in oil pipe, the standing valve bottom is provided with sand stop cover.
2. a kind of rod-type pumping unit suitable for sanding formation according to claim 1, it is characterised in that：The work tube length
Spend for 1.1 meters.
3. a kind of rod-type pumping unit suitable for sanding formation according to claim 1, it is characterised in that：The sand stop cover by
Hard alloy steel is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720227465.XU CN206592271U (en) | 2017-03-10 | 2017-03-10 | A kind of rod-type pumping unit suitable for sanding formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720227465.XU CN206592271U (en) | 2017-03-10 | 2017-03-10 | A kind of rod-type pumping unit suitable for sanding formation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206592271U true CN206592271U (en) | 2017-10-27 |
Family
ID=60123683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720227465.XU Expired - Fee Related CN206592271U (en) | 2017-03-10 | 2017-03-10 | A kind of rod-type pumping unit suitable for sanding formation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206592271U (en) |
-
2017
- 2017-03-10 CN CN201720227465.XU patent/CN206592271U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 Termination date: 20180310 |