CN2156315Y - Top fixing rod type oil pump - Google Patents
Top fixing rod type oil pump Download PDFInfo
- Publication number
- CN2156315Y CN2156315Y CN 93211816 CN93211816U CN2156315Y CN 2156315 Y CN2156315 Y CN 2156315Y CN 93211816 CN93211816 CN 93211816 CN 93211816 U CN93211816 U CN 93211816U CN 2156315 Y CN2156315 Y CN 2156315Y
- Authority
- CN
- China
- Prior art keywords
- lock sealing
- sealing
- pumping unit
- roof anchorage
- type pumping
- Prior art date
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 238000005086 pumping Methods 0.000 claims description 7
- 239000010985 leather Substances 0.000 claims description 6
- 229910000639 Spring steel Inorganic materials 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 abstract 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000010779 crude oil Substances 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Compressor (AREA)
Abstract
The utility model discloses an improved top fixing rod type oil pump which is fixed at a top part, being especially suitable for the exploitation of crude oil for deep wells in oil fields. The top sealing fixing device of the utility model is fixed and combined with a mechanical locking device by a soft cup packing device, so that a composite sealing and locking fixed structure can be formed. The utility model has the advantages of high successful rate of downhole seat sealing, reliable sealing and locking fixation, simple structure, easy fabrication, etc.
Description
This practical roof anchorage relates to a kind of improved roof anchorage rod-type pumping unit, is specially adapted to the oil field deep well oil extraction.
Existing roof anchorage rod-type pumping unit, its sealing and locking and fixing device have two kinds of patterns, and a kind of is mechanical type, and another kind is the leather cup formula.Pump the sealing and the inefficacy that is locked occur easily in the back of going into the well, thereby influences the proper functioning of pump.
The purpose of this practical roof anchorage provides a kind of improved roof anchorage rod-type pumping unit, and it can realize sealing reliably and being locked in the back of going into the well.
This practical roof anchorage is achieved in that the top seal that adopts the leather cup formula, increase the mechanical lock fixing device, form the compound sealing and the structure that is locked, the mechanical lock fixing device is made of with the lock sealing cover that is contained on the outer tube the elasticity tensioner ring that is contained on the lock sealing parts, after going into the well, mechanical interlocking fixing device and the soft seal of leather cup formula play a role jointly, thereby form reliable operating conditions.
This practical roof anchorage manufacturing is simple, the seat envelope of going into the well success rate height, and sealing and fixing is reliable, use, easy to maintenance.
This practical roof anchorage is provided by following examples:
Figure one is the integrally-built sectional drawing of this practical roof anchorage.
Figure two is part sectioned views of the sealing of this practical roof anchorage and the structure that is locked.
Below in conjunction with accompanying drawing this practical roof anchorage is described in further detail.With reference to figure one and figure two, this practical roof anchorage is mainly by lock sealing parts (1), outer pipe assembly (2), pump barrel assembly (3), plunger piston assembly (4) is formed, the upper connection (5) of lock sealing parts (1) is connected with sealing mandrel (7), form a circular groove in the joint, place the elasticity tensioner ring of making by spring steel (6) in the groove, elasticity tensioner ring (6) circumferentially has a breach, its both ends of the surface have different chamferings, the upper-end surface chamfering is 25 °～40 °, the lower end surface chamfering is 10 °～25 °, do not entering when being locked state, elasticity tensioner ring (6) has a certain clearance radial and axial.In the bottom of lock sealing parts (1) leather cup formula seal ring (9) is housed, lock sealing cover (8) is equipped with in the relevant position of pipe assembly (2) outside, and it is 10 °～30 ° that a circular groove, the chamfering of the both ends of the surface up and down of circular groove are arranged on its endoporus cylndrical surface.When sucker rod pump is gone into the well, outer pipe assembly (2) is connected on tubing string and arrives designed depth up and down, pump barrel assembly (3) is hung by plunger piston assembly (4) and is being connected on rod string up and down to giving the depthkeeping degree subsequently, pipe assembly (2) goes outside pump barrel assembly (3) enters into, be subjected to the action of gravity of rod string, leather cup formula seal ring (9) on the lock sealing parts (1) is squeezed into earlier in the lock sealing cover (8), elasticity tensioner ring (6) shrinks and enters into lock sealing cover (8) subsequently, flick when arriving circular groove, at this moment, the lower end surface step on lock sealing parts (1) top is fallen the upper end of lock sealing cover (8), pump barrel assembly (3) can not continue to fall again, and be stuck in the upper end of the circular groove of lock sealing cover (8) behind elasticity tensioner ring (6) distending, and can not arbitrarily move upward, just form the state that is locked with outer pipe assembly (2), seal ring (9) also forms sealing with lock sealing cover (8), makes sucker rod pump possess the operating conditions of normal suction.
Claims (4)
1, a kind of roof anchorage rod-type pumping unit of being made up of lock sealing parts (1), outer pipe assembly (2), pump barrel assembly (3), plunger piston assembly (4) is characterized in that forming compound seal fixing and locking device by the elasticity tensioner ring (6) on lock sealing parts (1) top and the leather cup formula seal ring (9) of bottom with lock sealing cover (8).
2, roof anchorage rod-type pumping unit according to claim 1 is characterized in that the upper connection (5) of lock sealing parts (1) and sealing mandrel (7) joint form a circular groove, place the elasticity tensioner ring (6) of spring steel in the groove.
3, roof anchorage rod-type pumping unit according to claim 1 and 2 is characterized in that the elasticity tensioner ring (6) on the lock sealing parts (1) circumferentially has a breach; Both ends of the surface are different chamferings, and the upper-end surface is 25 °～40 °, and the lower end surface is 10 °～20 °.
4, roof anchorage rod-type pumping unit according to claim 1 and 2 is characterized in that on lock sealing cover (8) the endoporus cylndrical surface circular groove being arranged, and the upper and lower end face of circular groove is 10 °～30 ° chamferings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93211816 CN2156315Y (en) | 1993-04-27 | 1993-04-27 | Top fixing rod type oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93211816 CN2156315Y (en) | 1993-04-27 | 1993-04-27 | Top fixing rod type oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2156315Y true CN2156315Y (en) | 1994-02-16 |
Family
ID=33793313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93211816 Expired - Fee Related CN2156315Y (en) | 1993-04-27 | 1993-04-27 | Top fixing rod type oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2156315Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420855C (en) * | 2006-10-30 | 2008-09-24 | 张殿瑞 | Double-bridge oil-well pump |
| CN109653710A (en) * | 2018-11-09 | 2019-04-19 | 大港油田集团有限责任公司 | A kind of hydraulic drive reciprocating pump |
| CN110821803A (en) * | 2019-11-25 | 2020-02-21 | 尚云英 | Elastic seat seal rod type pump |
-
1993
- 1993-04-27 CN CN 93211816 patent/CN2156315Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420855C (en) * | 2006-10-30 | 2008-09-24 | 张殿瑞 | Double-bridge oil-well pump |
| CN109653710A (en) * | 2018-11-09 | 2019-04-19 | 大港油田集团有限责任公司 | A kind of hydraulic drive reciprocating pump |
| CN109653710B (en) * | 2018-11-09 | 2021-11-02 | 大港油田集团有限责任公司 | Hydraulic drive reciprocating pump |
| CN110821803A (en) * | 2019-11-25 | 2020-02-21 | 尚云英 | Elastic seat seal rod type pump |
| CN110821803B (en) * | 2019-11-25 | 2023-12-01 | 尚云英 | Elastic seat sealing rod type 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 |