CN2628708Y - Screw pump oil production pipe column pressure test apparatus - Google Patents
Screw pump oil production pipe column pressure test apparatus Download PDFInfo
- Publication number
- CN2628708Y CN2628708Y CN 03263839 CN03263839U CN2628708Y CN 2628708 Y CN2628708 Y CN 2628708Y CN 03263839 CN03263839 CN 03263839 CN 03263839 U CN03263839 U CN 03263839U CN 2628708 Y CN2628708 Y CN 2628708Y
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- CN
- China
- Prior art keywords
- valve
- screw pump
- positioning pipe
- string
- valve seat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A pressure testing device for a screw pump oil production string comprises an oil tubing collar, a positioning pipe, an oil drainage dowel, a valve cover, a valve ball, a valve seat, a valve seat connector, a telescopic pipe and a lower connector, wherein the valve cover, the valve ball, the valve seat and the valve seat connector is equivalent to a check valve unit. After the lowering of a screw pump oil production string is finished, a pressure test can be done; after that, a string anchoring device is anchored on a casing, and the string is lowered further; without moving the telescopic pipe, the distance between the valve ball and a pushing rod is shortened, so the valve ball is pushed away from the valve seat to communicate with the upper and lower parts of the string, then a rotor can be lowered. When the rotor is lowered to a certain level, the lower part of the rotor can press the oil drainage dowel broken to communicate with the exterior and the interior of the positioning pipe, so that when the string is lifted in next operation, liquid on the valve ball can be drained out from the oil drainage dowel hole, thereby preventing spray on the lift tubing and avoiding pollution to the environment. The pressure test on the screw pump oil production string can exclude the reworking requirement because of tubing leakage, and guarantee the working quality, therefore shortening the oil well suspension time, reducing the output loss, and lowering the production cost.
Description
One, technical field
The utility model relates to a kind of plant equipment of oil field oil recovery usefulness, particularly a kind of screw pump oil production tubing string pressure testing device.
Two, background technology
In the screw pump oil production tubing string, ball-and-seat can not be installed in the screw pump bottom, because if after ball-and-seat has been installed, the rotor of screw pump is when being lowered to the stator of screw pump, liquid between ball-and-seat and the rotor bottom can not be discharged, and rotor occurs and can not enter the interior problem of stator smoothly.So, ball-and-seat can not be installed in the screw pump bottom, and therefore, present screw pump oil production tubing string can not pressure testing, whether can't find oil pipe misses, do not guarantee operation quality, cause adopt behind some screw pump oil production well operations not fuel-displaced, the operation of need doing over again, increase the oil well off-time, increase the activity duration, reduce well oil output, increase operating cost.
Three, summary of the invention
The purpose of this utility model is a kind of screw pump oil production tubing string pressure testing device of design, make it carry out pressure testing to the screw pump oil production tubing string, can guarantee that again screw pump rotor is lowered in the screw pump stator smoothly, by to the pressure testing of screw pump oil production tubing string, the operation that discharge oil pipe leakage in time causes is done over again, guarantee operation quality, reduce the oil well loss.
The utility model is achieved in that it is made up of tubing coupling, positioning pipe, draining pin, valve bonnet, valve ball, valve seat, valve base joint, telescoping tube, lower contact.Tubing coupling is connected in positioning pipe top, the draining pin is installed on the side opening of positioning pipe bottom, the draining pin enters in the positioning pipe, valve bonnet top connects with the positioning pipe bottom, valve ball, valve seat is installed in the valve bonnet, valve ball is located on the valve seat, valve base joint connects with the valve bonnet bottom, telescoping tube is sleeved on outside the positioning pipe, shoulder is suspended on the outer shoulder of positioning pipe bottom in the telescoping tube top, the port that the draining pin is outer, valve bonnet, valve base joint is in the telescoping tube, and lower contact is connected in the telescoping tube bottom, and lower contact top push rod enters in the valve seat, be under the valve ball, the key piece is arranged under the push rod, and the valve base joint bottom has notch, and the key piece under the push rod of lower contact top is satisfied with in the notch of valve base joint bottom.
Screw pump oil production tubing string pressure testing device is connected under the screw pump, connects the tubing string anchoring device under the screw pump oil production tubing string pressure testing device.Valve bonnet, valve ball, valve seat, valve base joint are equivalent to a cover ball-and-seat, tubing string is airtight after the screw pump oil production tubing string has descended, and just can carry out pressure testing to tubing string, after pressure testing is qualified, the operation tubing string, the tubing string anchoring device is anchored on the sleeve pipe, transfers pile tube again, telescoping tube is motionless, distance between valve ball and the push rod shortens, valve ball is pushed up from valve seat, makes tubing string UNICOM up and down, just can be lowered to rotor smoothly.After putting in place under the rotor, the rotor bottom breaks the draining pin, makes the inside and outside UNICOM of positioning pipe, so that when descending the subjob lift pipe string, the liquid on the valve ball releases in the draining pin hole, does not emit spray to carry oil pipe when guaranteeing operation, avoids dirty seven environment.After the operation completion, rotor rotates in stator, and well liquid enters in the screw pump by extraction through valve bonnet, valve seat, positioning pipe.
The beneficial effects of the utility model are: can carry out pressure testing to the screw pump oil production tubing string, can guarantee that again screw pump rotor is lowered in the screw pump stator smoothly, by to the pressure testing of screw pump oil production tubing string, can discharge the operation that oil pipe leakage causes does over again, guarantee operation quality, the oil well off-time is short, and production loss is few, and operating cost is low.Owing to designed draining mechanism, do not emit spray to carry oil pipe during following subjob, avoided dirty seven environment.
Four, description of drawings
Fig. 1 is the structure sectional view of the utility model embodiment.
Fig. 2 is the sectional drawing after cutting open from A-A among Fig. 1.
Five, the specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described:
As shown in the figure, the 1st, box cupling, the 2nd, positioning pipe, the 3rd, draining pin, the 4th, valve bonnet, the 5th, valve ball, the 6th, valve seat, the 7th, valve base joint, the 8th, telescoping tube, the 9th, lower contact.Be that the utility model is made up of tubing coupling 1, positioning pipe 2, draining pin 3, valve bonnet 4, valve ball 5, valve seat 6, valve base joint 7, telescoping tube 8, lower contact 9.Tubing coupling 1 is connected in positioning pipe 2 tops, draining pin 3 is installed on the positioning pipe 2 bottom side openings, draining pin 3 enters in the positioning pipe 2, valve bonnet 4 tops connect with positioning pipe 2 bottoms, valve ball 5, valve seat 6 is installed in the valve bonnet 4, valve ball 5 is located on the valve seat 6, valve base joint 7 connects with valve bonnet 4 bottoms, telescoping tube 8 is sleeved on outside the positioning pipe 2, shoulder is suspended on the outer shoulder of positioning pipe 2 bottoms in telescoping tube 8 tops, port outside the draining pin 3, valve bonnet 4, valve base joint 7 is in the telescoping tube 8, and lower contact 9 is connected in telescoping tube 8 bottoms, and lower contact 9 top push rods enter in the valve seat 6, be under the valve ball 5, the key piece is arranged under the push rod, and valve base joint 7 bottoms have notch, and the key piece under the lower contact 9 top push rods is satisfied with in the notch of valve base joint 7 bottoms.
Screw pump oil production tubing string pressure testing device is connected under the screw pump, connects the tubing string anchoring device under the screw pump oil production tubing string pressure testing device.Valve bonnet 4, valve ball 5, valve seat 6, valve base joint 7 are equivalent to a cover ball-and-seat, tubing string is airtight after the screw pump oil production tubing string has descended, and just can carry out pressure testing to tubing string, after pressure testing is qualified, the operation tubing string, the tubing string anchoring device is anchored on the sleeve pipe, transfers tubing string again, telescoping tube 8 is motionless, distance between valve ball 5 and the push rod shortens, valve ball 5 from valve seat 4, is made tubing string UNICOM up and down by the top, just can be lowered to rotor smoothly.After putting in place under the rotor, the rotor bottom breaks draining pin 3, makes positioning pipe 2 inside and outside UNICOMs, so that when descending the subjob lift pipe string, the liquid on the valve ball 5 releases in draining pin 3 holes, does not emit spray to carry oil pipe when guaranteeing operation, avoids dirty seven environment.After the operation completion, rotor rotates in stator, and well liquid enters in the screw pump by extraction through valve bonnet 4, valve seat 6, positioning pipe.
Claims (1)
1, a kind of screw pump oil production tubing string pressure testing device, by tubing coupling (1), positioning pipe (2), draining pin (3), valve bonnet (4), valve ball (5), valve seat (6), valve base joint (7), telescoping tube (8), lower contact (9) is formed, it is characterized in that: tubing coupling (1) is connected in positioning pipe (2) top, draining pin (3) is installed on the side opening of positioning pipe (2) bottom, draining pin (3) enters in the positioning pipe (2), valve bonnet (4) top connects with positioning pipe (2) bottom, valve ball (5), valve seat (6) is installed in the valve bonnet (4), valve ball (5) is located on the valve seat (6), valve base joint (7) connects with valve bonnet (4) bottom, telescoping tube (8) is sleeved on outside the positioning pipe (2), shoulder is suspended on the outer shoulder of positioning pipe (2) bottom in telescoping tube (8) top, the port that draining pin (3) is outer, valve bonnet (4), valve base joint (7) is in the telescoping tube (8), lower contact (9) is connected in telescoping tube (8) bottom, lower contact (9) top push rod enters in the valve seat (6), be under the valve ball (5), the key piece is arranged under the push rod, valve base joint (7) bottom has notch, and the key piece under the push rod of lower contact (9) top is satisfied with in the notch of valve base joint (7) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03263839 CN2628708Y (en) | 2003-06-04 | 2003-06-04 | Screw pump oil production pipe column pressure test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03263839 CN2628708Y (en) | 2003-06-04 | 2003-06-04 | Screw pump oil production pipe column pressure test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2628708Y true CN2628708Y (en) | 2004-07-28 |
Family
ID=34255847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03263839 Expired - Fee Related CN2628708Y (en) | 2003-06-04 | 2003-06-04 | Screw pump oil production pipe column pressure test apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2628708Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382131B (en) * | 2008-10-15 | 2010-06-16 | 马子奇 | Pressure testing downhole oil production screw pump |
| CN101358525B (en) * | 2008-09-11 | 2011-12-07 | 中国石油天然气股份有限公司 | Oil well with rod pressure test operation method |
| CN105443060A (en) * | 2016-01-06 | 2016-03-30 | 东营市海天石油科技有限责任公司 | Oil pipe drainage anchor |
| CN107630680A (en) * | 2017-11-15 | 2018-01-26 | 李万鹏 | All-metal screw pump Thickened oil injection-production integrated device |
| CN107905773A (en) * | 2017-11-15 | 2018-04-13 | 李万鹏 | The application method of all-metal screw pump Thickened oil injection-production integrated device |
| CN111827984A (en) * | 2019-04-19 | 2020-10-27 | 中国石油天然气股份有限公司 | Screw pump well abnormity detection device |
| CN112832711A (en) * | 2020-12-10 | 2021-05-25 | 中国石油天然气股份有限公司 | Flow control gauge |
| CN113738305A (en) * | 2021-11-03 | 2021-12-03 | 东营市海天石油科技有限责任公司 | Rotary pressure relief controllable pressure testing valve |
-
2003
- 2003-06-04 CN CN 03263839 patent/CN2628708Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358525B (en) * | 2008-09-11 | 2011-12-07 | 中国石油天然气股份有限公司 | Oil well with rod pressure test operation method |
| CN101382131B (en) * | 2008-10-15 | 2010-06-16 | 马子奇 | Pressure testing downhole oil production screw pump |
| CN105443060A (en) * | 2016-01-06 | 2016-03-30 | 东营市海天石油科技有限责任公司 | Oil pipe drainage anchor |
| CN105443060B (en) * | 2016-01-06 | 2018-10-19 | 东营市海天石油科技有限责任公司 | A kind of oil draining anchoring device of oil pipe |
| CN107630680A (en) * | 2017-11-15 | 2018-01-26 | 李万鹏 | All-metal screw pump Thickened oil injection-production integrated device |
| CN107905773A (en) * | 2017-11-15 | 2018-04-13 | 李万鹏 | The application method of all-metal screw pump Thickened oil injection-production integrated device |
| CN107905773B (en) * | 2017-11-15 | 2019-10-01 | 刘玉友 | The application method of all-metal screw pump Thickened oil injection-production integrated device |
| CN111827984A (en) * | 2019-04-19 | 2020-10-27 | 中国石油天然气股份有限公司 | Screw pump well abnormity detection device |
| CN112832711A (en) * | 2020-12-10 | 2021-05-25 | 中国石油天然气股份有限公司 | Flow control gauge |
| CN113738305A (en) * | 2021-11-03 | 2021-12-03 | 东营市海天石油科技有限责任公司 | Rotary pressure relief controllable pressure testing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |