CN201982285U - Soft seal plunger oil well pump - Google Patents
Soft seal plunger oil well pump Download PDFInfo
- Publication number
- CN201982285U CN201982285U CN2011200686060U CN201120068606U CN201982285U CN 201982285 U CN201982285 U CN 201982285U CN 2011200686060 U CN2011200686060 U CN 2011200686060U CN 201120068606 U CN201120068606 U CN 201120068606U CN 201982285 U CN201982285 U CN 201982285U
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- plunger
- oil well
- soft seal
- pump
- valve
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Abstract
The utility model relates to a soft seal plunger oil well pump, which mainly comprises a pump barrel, a plunger, an upper traveling valve, a lower traveling valve and a fixed valve, wherein the plunger is arranged in the pump barrel, and the upper traveling valve is arranged at the upper end of the plunger through an upper joint; and the lower traveling valve is arranged at the lower end of the plunger through a lower joint, and the fixed valve is arranged at the bottom of the pump barrel. The soft seal plunger oil well pump is innovatively characterized in that: a group of soft seal leather cups with upper openings are coaxially connected in series and sleeved between the outer wall of the plunger and the pump barrel, and positioning supporting rings sleeved on the plunger are respectively arranged at the two axial sides of each soft seal leather cups. The soft seal plunger oil well pump has a scientific and reasonable structural design, stuck pump accidents can be effectively prevented in a high-sand-content, easy-to-scale, high-wax-content and heavy oil well, the pump detection period is prolonged, and repair and maintenance costs are reduced. The novel oil well pump has very high popularization and application values.
Description
Technical field
The utility model belongs to the extracting device of oil field, particularly a kind of soft sealing plunger oil well pump.
Background technique
Oil well pump be a kind of with oil by the underground machinery that gives rise to ground, it is widely used in the petroleum production industry, use amount account for the mechanical oil recovery device overall more than 90%.Existing plunger oil-well pump mainly is made of pump barrel, plunger and one group of pump valve, and pump valve comprises the standing valve that is installed in the traveling valve on the plunger and is installed in the pump barrel bottom.The plunger upper end is connected with the sucker rod of external equipment, and sucker rod drives plunger and pumps, and finishes the oil pumping action by the folding of movement of valve and standing valve.Existing oil well pump is easy to generate phenomenons such as containing sand, fouling, wax deposition after operation a period of time, cause the plunger sand card in the oil well; And the phenomenon that sand buries standing valve also appears in existing oil well pump easily, directly influences the proper functioning of oil well pump, increases the maintenance maintenance cost.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of soft sealing plunger oil well pump is provided, and it can effectively prevent holddown, prolongs maintenance period.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of soft sealing plunger oil well pump, mainly constitute by pump barrel, plunger, upper travelling valve, lower travelling valve and standing valve, plunger is installed in the pump barrel, upper travelling valve is installed in the plunger upper end by upper connection, lower travelling valve is installed in the plunger lower end by lower contact, standing valve is installed in the pump barrel bottom, it is characterized in that: the coaxial series connection is set with one group of uncovered soft seal leather cup that makes progress between the outer wall of plunger and pump barrel, and the positioning supports ring that is sleeved on the plunger all is installed in the axial both sides of each soft seal leather cup.
And the open-mouth end of described soft seal leather cup is the lip limit.
And the axial bottom of described positioning supports ring is shaped on the positioning spigot that is nested in soft seal leather cup inside, and the axial top of this positioning supports ring is shaped on guide sleeve, and this guide sleeve upper-end surface is shaped on the inverted cone step, and the lower end surface of this guide sleeve is shaped on the inverted cone bottom surface.
And, in described positioning supports ring, between topmost positioning supports ring and upper connection, be equipped with and seal guide ring, in the positioning supports ring, between bottom positioning supports ring and lower contact, the lower seal guide ring is installed.
And, be fixed with extension pipe in the standing valve upper end, on the tube wall of this extension pipe, be shaped on the multiple tracks spiral chute of arranged radially, be fixed with the sand block cap in the upper end of extension pipe.
Advantage of the present utility model and good effect are:
1. the plunger of this oil well pump adopts fabricated structure, the installation of soft seal leather cup adopts cascaded structure to install, realize quick location and installation by the positioning supports ring, and be convenient to the maintain and replace of soft seal leather cup after the operation, thereby overcome the disposable shortcoming of whole plunger, reduced cost significantly.
2. adopt the soft seal leather cup to seal between plunger of this oil well pump and the pump barrel, the open-mouth end of soft seal leather cup is a lip limit structure, and the lip limit is subjected to the head of liquid spreading when upstroke, is close to the pump barrel inwall, and suction force is big, and wastage is zero, the pump efficiency height; The lip limit loses head of liquid and automatic micro in the down stroke, reduces descending surface friction drag of plunger and roofbolt bending; But leather cup wearing and tearing posterior lip limit spreading automatic compensation gap keeps zero wastage, remains high pump efficiency, has overcome to be easy to generate the drawback that contains sand, fouling, wax deposition in the past, effectively avoids plunger sand card, prolongs the repair cycle, guarantees the long-time proper functioning of oil well pump.
3. the axial bottom of the positioning supports ring of this oil well pump is shaped on the positioning spigot that is nested in soft seal leather cup inside, is used to locate the position of next stage soft seal leather cup; The axial top of this positioning supports ring is shaped on the guide sleeve that strengthens the external diameter section, is used for the assist location and the guiding of soft seal leather cup; Be shaped on the inverted cone step in this guide sleeve upper-end surface, be used for bottom coupling and sealing with upper level soft seal leather cup; The lower end surface of this guide sleeve is shaped on the inverted cone bottom surface, forms preset clearance between the inside of this inverted cone bottom surface and next stage soft seal leather cup, the well liquid that is used for the storage area sand grains and leather cup is expanded.
4. this oil well pump is separately installed with sealing guide ring and lower seal guide ring at the two ends of plunger, is used for the guiding that plunger piston assembly moves back and forth and the sealing of upper and lower end face.
5. this oil well pump has been set up extension pipe on standing valve top, the tube wall side has the multiple tracks spiral chute, and install the sand block cap in extension pipe upper end, when the oil-feed of upstroke standing valve, fluid produces the hydraulic cyclone effect through the multiple tracks spiral chute, prevent the sand grains deposition, make sand grains fully mix the back and discharge in the pump barrel with fluid; Simultaneously, this ring cavity structure can prevent effectively that junk, dirt, the iron rust of operation process king-rod, tube-surface and well head from entering in the valve bonnet of standing valve, thereby prevents that sand from burying standing valve, avoids secondary inefficacy of standing valve and operation again.
6. the utility model scientific structure design is reasonable, contains in sand, easily fouling, the high content of wax, the thick oil well at height effectively to prevent the holddown accident, prolongs pump detection period, reduces the maintenance maintenance cost, is a kind of novel oil well pump with high application value.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A portion enlarged view of Fig. 1.
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of soft sealing plunger oil well pump, mainly constitute by pump barrel 18, plunger 12, traveling valve and standing valve, plunger is installed in the pump barrel, traveling valve is installed on the plunger, traveling valve comprises top traveling valve and bottom traveling valve, the top traveling valve is made of top valve bonnet 2, top valve ball 3, the top valve seat 4 that moves about that moves about that moves about, and the top traveling valve is packed in the plunger upper end by upper connection 5.The bottom traveling valve is made of valve bonnet under the enclosed 14, bottom valve ball 15, the bottom valve seat 16 that moves about that moves about, and the bottom traveling valve is packed in the plunger lower end by lower contact 13, installs bearing pipe close 17 in the lower end of bottom traveling valve.Standing valve is made of closed cage 23, fixed valve ball 24 and fixed valve base 25, and standing valve is packed in the pump barrel bottom by box cupling 22.The coaxial pump barrel box cupling 1 that installs in pump barrel upper end, the pump barrel lower end is coaxial to install reducer fitting 26.
The innovation part of this oil well pump is: the coaxial series connection is set with one group of uncovered soft seal leather cup 8 that makes progress between the outer wall of plunger and pump barrel, and the open-mouth end of soft seal leather cup is the lip limit.The soft seal leather cup is installed 6-20 according to needs are installed.The soft seal leather cup adopts rubber composite to make, and friction factor is low, and is heat-resisting, corrosion-resistant, high temperature resistant, and it is wide to be suitable for the hole condition scope.The quantity of soft seal leather cup, material, hardness can design according to the degree of depth and the conditions such as pump setting depth, hole condition of oil well.
The positioning supports ring 7,9,10 that is sleeved on the plunger all is installed in the axial both sides of each soft seal leather cup, realizes the location and installation of soft seal leather cup by the positioning support ring.Concrete structure is: the axial bottom of positioning supports ring is shaped on the positioning spigot 30 that is nested in soft seal leather cup inside, is used to locate the position of next stage soft seal leather cup.The axial top of this positioning supports ring is shaped on the guide sleeve 28 of enlarged diameter section, is used for the assist location and the guiding of soft seal leather cup.This guide sleeve upper-end surface is shaped on inverted cone step 27, is used for the bottom coupling with upper level soft seal leather cup.The lower end surface of this guide sleeve is shaped on inverted cone bottom surface 29, forms preset clearance between the inside of this inverted cone bottom surface and next stage soft seal leather cup, the well liquid that is used for the storage area sand grains and leather cup is expanded.
Between topmost positioning supports ring and upper connection, sealing guide ring 6 is installed in the positioning supports ring, in the positioning supports ring, between bottom positioning supports ring and lower contact, lower seal guide ring 11 is installed.Be used for the guiding that plunger piston assembly moves back and forth and the sealing of upper and lower end face.
Be fixed with extension pipe 21 in the standing valve upper end, on the tube wall of this extension pipe, be shaped on the multiple tracks spiral chute 20 of arranged radially, be fixed with sand block cap 19 in the upper end of extension pipe.
This oil well pump can effectively prevent plunger sand card and bury the sand standing valve, thereby prolong the repair cycle, the long-time proper functioning of assurance oil well pump.
Claims (5)
1. soft sealing plunger oil well pump, mainly constitute by pump barrel, plunger, upper travelling valve, lower travelling valve and standing valve, plunger is installed in the pump barrel, upper travelling valve is installed in the plunger upper end by upper connection, lower travelling valve is installed in the plunger lower end by lower contact, standing valve is installed in the pump barrel bottom, it is characterized in that: the coaxial series connection is set with one group of uncovered soft seal leather cup that makes progress between the outer wall of plunger and pump barrel, and the positioning supports ring that is sleeved on the plunger all is installed in the axial both sides of each soft seal leather cup.
2. soft sealing plunger oil well pump according to claim 1 is characterized in that: the open-mouth end of described soft seal leather cup is the lip limit.
3. soft sealing plunger oil well pump according to claim 1, it is characterized in that: the axial bottom of described positioning supports ring is shaped on the positioning spigot that is nested in soft seal leather cup inside, the axial top of this positioning supports ring is shaped on guide sleeve, this guide sleeve upper-end surface is shaped on the inverted cone step, and the lower end surface of this guide sleeve is shaped on the inverted cone bottom surface.
4. soft sealing plunger oil well pump according to claim 1, it is characterized in that: in described positioning supports ring, between topmost positioning supports ring and upper connection, be equipped with and seal guide ring, in the positioning supports ring, between bottom positioning supports ring and lower contact, the lower seal guide ring is installed.
5. soft sealing plunger oil well pump according to claim 1 is characterized in that: be fixed with extension pipe in the standing valve upper end, be shaped on the multiple tracks spiral chute of arranged radially on the tube wall of this extension pipe, be fixed with the sand block cap in the upper end of extension pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200686060U CN201982285U (en) | 2011-03-16 | 2011-03-16 | Soft seal plunger oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200686060U CN201982285U (en) | 2011-03-16 | 2011-03-16 | Soft seal plunger oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982285U true CN201982285U (en) | 2011-09-21 |
Family
ID=44609747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200686060U Expired - Fee Related CN201982285U (en) | 2011-03-16 | 2011-03-16 | Soft seal plunger oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781950A (en) * | 2016-04-28 | 2016-07-20 | 铁岭中油机械设备制造有限公司 | Rod type oil well pump for thickened oil exploiting |
-
2011
- 2011-03-16 CN CN2011200686060U patent/CN201982285U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781950A (en) * | 2016-04-28 | 2016-07-20 | 铁岭中油机械设备制造有限公司 | Rod type oil well pump for thickened oil exploiting |
| CN105781950B (en) * | 2016-04-28 | 2017-05-03 | 铁岭中油机械设备制造有限公司 | Rod type oil well pump for thickened oil exploiting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300270 Tianjin Dagang Oilfield Gangnan mine bright road Patentee after: TIANJIN LONGXIN PETROLEUM MACHINERY MANUFACTURING CO.,LTD. Address before: 300270 Tianjin Dagang Oilfield Gangnan mine bright road Patentee before: TIANJIN LONGXIN PETROLEUM MACHINERY MFG Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 300270 Tianjin Dagang Oilfield Gangnan mine bright road Patentee after: TIANJIN LONGXIN PETROLEUM MACHINERY MFG Co.,Ltd. Address before: 300280 Tianjin city Grand Port oilfield Gangnan mining area bright road Patentee before: Tianjin Dagang Longxin Petroleum Machinery Manufacturing Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Oil pump with soft sealing plunger Effective date of registration: 20160606 Granted publication date: 20110921 Pledgee: Tianjin Binhai New Area Investment Company limited by guarantee Pledgor: TIANJIN LONGXIN PETROLEUM MACHINERY MANUFACTURING CO.,LTD. Registration number: 2016120000016 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170405 Granted publication date: 20110921 Pledgee: Tianjin Binhai New Area Investment Company limited by guarantee Pledgor: TIANJIN LONGXIN PETROLEUM MACHINERY MANUFACTURING CO.,LTD. Registration number: 2016120000016 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20180316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |