CN2571995Y - Under pump oil leakage device for petroleum sucking pipe type pump - Google Patents
Under pump oil leakage device for petroleum sucking pipe type pump Download PDFInfo
- Publication number
- CN2571995Y CN2571995Y CN 02252935 CN02252935U CN2571995Y CN 2571995 Y CN2571995 Y CN 2571995Y CN 02252935 CN02252935 CN 02252935 CN 02252935 U CN02252935 U CN 02252935U CN 2571995 Y CN2571995 Y CN 2571995Y
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- oil
- steel body
- pump
- valve body
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to an under pump oil leakage device for a petroleum sucking pipe type pump, which solves problems that the accidents is many, the pollution is serious, and the harm for personnel bodies exists of an old oil leakage device. The utility model comprises a connecting steel body arranged on an oil pipe, and a sealing valve body in the steel body, wherein, a balancing piston is sheathed on the sealing valve body; cutting holes are arranged on the balancing piston; one hollow oil leakage shear pin is arranged on each connecting steel body corresponding to the cutting holes. The balancing piston of the oil leakage device has short travel and quick balancing pressure; the stroke loss of form 50 mm to 80 mm can be effectively decreased; the utility model can not be influenced by pump touch and vibration; the reliability is strong. A well can be conventionally washed; the pollution of oil layers caused by well washing can be reduced; the no pressure well operation and the goal for protecting the oil layers can be realized; thereby, the operation is direct after the operation of the oil well. Compared with other oil leakage devices which can be broken, the effective passing area of the oil pump can be ensured. The utility model can avoid the ground pollution caused by lifting a pipe column in the lifting process; the utility model can effectively prevent the harm for the personnel health for repairing the well. The utility model can be used matched with pumps of different series.
Description
Technical field: the utility model relates to a kind of oil field rod pumping pump bleeder.
Background technology: at present, zones such as domestic some oil field such as Dagang Oilfield south, its oil property extreme difference has high sticking, Gao Ning, high thick characteristics, as uses common baffle plate bleeder, causes baffle plate to break easily owing to influenced by wellhead back pressure.In addition, in case of around during the destruction of individual persons, close by force and produce valve, back pressure valve, also can cause the baffle plate pressurized to break.Though the side valve type bleeder has flexibly, the be not stressed advantage of size variation influence of switch, brushed up against vibration effect and can cause guiding valve to be thrown off, and ineffective.At the problems referred to above, the someone can adopt any more the lifting technology design of bleeder, and this way causes on the one hand carries the ground pollution that tubing string causes, and endangers the healthy of well workover worker on the other hand, does not also meet environmental requirement.Simultaneously, because above-mentioned two aspects certainly will cause the increase of environmental protection expense and operation cost.
Summary of the invention: the utility model purpose is that the old-fashioned bleeder accident of solution is many, seriously polluted, worker's health is existed problems such as harm.
The oil oil pumping tubing pump oil drainer arranged below pump that the utility model provides, comprise the connection steel body and the interior sealed valve body of steel body that are installed on the oil pipe pipeline, the sealed valve body that it is characterized in that connecting in the steel body is outside for stepped, its butt end be connected steel body internal diameter and closely cooperate and relative fixed, it is carefully held and is connected and forms one section cavity between the steel body internal diameter, be isolated into two sections by being enclosed within dummy piston on the sealed valve body and sealing ring with this cavity is airtight therebetween, its hypomere cavity be dummy piston with the sealed valve body butt end between be connected the balance oil hole that has on the steel body with the oil pipe external communications, the top of dummy piston has one to four shearing perforation, a hollow draining respectively is installed on the steel body cuts off with corresponding connection of each shearing perforation position, the end that hollow draining cuts off stretches in the shearing perforation on the dummy piston, the inner up big and down small shoulder hole for being communicated with up and down with oil pipe of sealed valve body.
Connect that the hollow draining of installing on the steel body cuts off and interior hollow section is outside big, inner promptly terminal little stepped.
The utility model advantage: 1, this bleeder safe coefficient height, when not needing draining, because oil pipe is communicated with up and down, dummy piston is accepted little, and the draining pin can not cut off; 2, when draining, in oil pipe, drop into steel ball, sealed valve body is closed, dummy piston top pressurization makes pressure reach 22-24Mpa, reaches the draining purpose so be easy to the draining pin cut off; 3, the dummy piston stroke is short, and equilibrium pressure is fast, can effectively reduce by the loss of plunger stroke of 50～80mm; 4, this bleeder is not bumped the influence of pump and vibration, good reliability; 5, well-flushing just, the oil layer pollution that well-flushing brings in the time of can reducing operation is simultaneously realized snubbing serving, reaches protection oil reservoir purpose, directly goes into operation after making the oil well operation; 6, can to pound bleeder different with other, can guarantee effective Liu of mistake of oil well pump feed liquor area; 7, can avoid lifting technology because of carrying the ground pollution that tubing string causes, prevent that effectively it is to the healthy harm that causes of well workover worker; 8, this product can with the supporting use of pump type of different series.
Description of drawings:
Fig. 1, oil oil pumping tubing pump oil drainer arranged below pump structural representation;
Fig. 2, the bleeder actual use installment state schematic diagram in oil pipe.
The specific embodiment:
Embodiment 1
As shown in Figure 1, this bleeder comprises the connection steel body 1 that is installed on the oil pipe pipeline, sealed valve body 4 in the steel body, the sealed valve body outside is stepped, its butt end by sealing ring 8 be connected steel body internal diameter and closely cooperate and relative fixed, it is carefully held and is connected and forms one section cavity between the steel body internal diameter, therebetween by being enclosed within dummy piston 3 and the sealing ring 6 on the sealed valve body, 7 are isolated into two sections with this cavity is airtight, its hypomere cavity be dummy piston with the sealed valve body butt end between be connected the balance oil hole that has on the steel body with the oil pipe external communications, the top of dummy piston has one to four shearing perforation, by sealing ring 5 a hollow draining is installed respectively on the steel body and cuts off 2 with corresponding connection of each shearing perforation position, hollow draining cuts off and interior hollow section is outside big, inner promptly terminal little stepped, the end that hollow draining cuts off stretches in the shearing perforation on the dummy piston, and sealed valve body inside is the up big and down small shoulder hole that is communicated with oil pipe.
The actual use installment state of bleeder in oil pipe seen Fig. 2, and the bleeder 11 that has draining mechanism 12 is installed on the oil pipe 13, and oil pipe is communicated up and down, the outer mounting sleeve 10 of oil pipe.During draining, in oil pipe, drop into steel ball 9, when steel ball reaches in the sealed valve body shoulder hole, sealed valve body 4 is closed, make oil pipe airtight isolation (see figure 1) about in the of 13, in oil pipe, pressurize simultaneously, when the pressure of dummy piston top reaches 22-24Mpa, dummy piston moves down rapidly and hollow draining is cut off and cuts off, the oil of piston below then flows in the outer oil sets annular space 14 of oil pipe by the balance oil hole that connects on the steel body, and dummy piston is restored balance rapidly, meanwhile the liquid 16 in the oil pipe space 15, cut off in the outer oil sets annular space 14 of inner hollow inflow oil pipe by hollow draining, realize the draining purpose.
Claims (2)
1. oil oil pumping tubing pump oil drainer arranged below pump, comprise the connection steel body and the interior sealed valve body of steel body that are installed on the oil pipe pipeline, the sealed valve body that it is characterized in that connecting in the steel body is outside for stepped, its butt end be connected steel body internal diameter and closely cooperate and relative fixed, it is carefully held and is connected and forms one section cavity between the steel body internal diameter, be isolated into two sections by being enclosed within dummy piston on the sealed valve body and sealing ring with this cavity is airtight therebetween, its hypomere cavity be dummy piston with the sealed valve body butt end between be connected the balance oil hole that has on the steel body with the oil pipe external communications, the top of dummy piston has one to four shearing perforation, a hollow draining respectively is installed on the steel body cuts off with corresponding connection of each shearing perforation position, the end that hollow draining cuts off stretches in the shearing perforation on the dummy piston, and sealed valve body inside is the up big and down small shoulder hole that is communicated with oil pipe.
2. oil according to claim 1 oil pumping tubing pump oil drainer arranged below pump is characterized in that: connect that the hollow draining of installing on the steel body cuts off and interior hollow section is little stepped of outside big, inner i.e. end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02252935 CN2571995Y (en) | 2002-08-30 | 2002-08-30 | Under pump oil leakage device for petroleum sucking pipe type pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02252935 CN2571995Y (en) | 2002-08-30 | 2002-08-30 | Under pump oil leakage device for petroleum sucking pipe type pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2571995Y true CN2571995Y (en) | 2003-09-10 |
Family
ID=33722242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02252935 Expired - Fee Related CN2571995Y (en) | 2002-08-30 | 2002-08-30 | Under pump oil leakage device for petroleum sucking pipe type pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2571995Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869320A (en) * | 2016-09-23 | 2018-04-03 | 中国石油化工股份有限公司 | Anti- return of one kind tells flushing valve |
| CN109578255A (en) * | 2018-10-30 | 2019-04-05 | 中国石油天然气股份有限公司 | A kind of double structure can draining oil well pump |
| CN109931031A (en) * | 2017-12-17 | 2019-06-25 | 江苏康群科技发展有限公司 | Fluid pressure type bleeder |
-
2002
- 2002-08-30 CN CN 02252935 patent/CN2571995Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869320A (en) * | 2016-09-23 | 2018-04-03 | 中国石油化工股份有限公司 | Anti- return of one kind tells flushing valve |
| CN109931031A (en) * | 2017-12-17 | 2019-06-25 | 江苏康群科技发展有限公司 | Fluid pressure type bleeder |
| CN109578255A (en) * | 2018-10-30 | 2019-04-05 | 中国石油天然气股份有限公司 | A kind of double structure can draining oil well pump |
| CN109578255B (en) * | 2018-10-30 | 2020-04-24 | 中国石油天然气股份有限公司 | Double-structure oil drainage oil well pump |
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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 |