CN2670626Y - Rod oil-sucking pumps - Google Patents
Rod oil-sucking pumps Download PDFInfo
- Publication number
- CN2670626Y CN2670626Y CNU2003201136044U CN200320113604U CN2670626Y CN 2670626 Y CN2670626 Y CN 2670626Y CN U2003201136044 U CNU2003201136044 U CN U2003201136044U CN 200320113604 U CN200320113604 U CN 200320113604U CN 2670626 Y CN2670626 Y CN 2670626Y
- Authority
- CN
- China
- Prior art keywords
- rod
- joint
- pump barrel
- pump
- valve rod
- 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
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a new type rod oil-sucking pump which is composed of a valve rod joint, a valve rod, a valve rod guide sleeve, a plunger assembly, a pump barrel, and a fixing valve cover. The pump barrel is sheathed with an outer tube assembly which is composed of a sealing joint, a coupling, a connecting tube, and a supporting joint which are connected by thread. The contact place of the sealing joint and the supporting tube is provided with a sealing element. The lower end of the fixing valve cover is connected with a locking pawl by thread. By adopting the structure of the bottom supporting and the top sealing, the utility model, which has the advantages of long pump inspection period, high pumping efficiency, and simple assembly, not only has the function of righting the pump barrel, but also increases the sealing reliability of the rod oil-sucking pump.
Description
Technical field
The utility model relates to a kind of rod-type pumping unit, belongs to the down-hole oil production instrument.
Prior art
The Sealing of conventional rod-type pumping unit and supporting element are all at same position, this structure makes sucker rod pump in when work, and it is bigger influenced by the contraction deformation of roofbolt and tubing string, and sucker rod pump is swung around supporting element in oil pipe, cause the mechanical support fatigue ruption, seal fails.
Summary of the invention
The purpose of this utility model is exactly the shortcoming that overcomes prior art, and a kind of novel rod-type pumping unit is provided.
The purpose of this utility model is achieved in that novel rod-type pumping unit is by the valve rod joint, valve rod, the stem guiding cover, plunger piston assembly, pump barrel, standing valve cover is formed, the stem guiding cover, support tube, pump barrel and standing valve cover are threaded and are integral, plunger piston assembly is connected with threaded stem and is loaded in the pump barrel, valve rod passes the stem guiding cover and links to each other with the valve rod joint screw thread, pipe assembly outside on pump barrel, being with, outer pipe assembly is by SEALING FITTING, box cupling, connecting tube, the supported joint composition that is threaded, the SEALING FITTING upper end is provided with outside thread, be provided with seal ring in it and the contacted place of support tube, supported joint inner chamber top is funnel shape, one projection is arranged at the bottom, is provided with outside thread in the lower end of supported joint; The lower end screw thread of fixed valve base is connected with the lock pawl.
Seal ring is V-arrangement or bowl-type.
Between fixed valve base and the lock pawl taper copper ring is housed.
The utility model adopts the structure of bottom support, top seal, not only has the effect of setting upright pump barrel, has also improved the sealing reliability of rod-type pumping unit, has pump detection period length, pumping efficient height, advantages such as simple are installed.
Description of drawings
Fig. 1: the utility model structural representation;
Among the figure: 1-valve rod joint, 2-valve rod, 3-stem guiding cover, 4-support tube, 5-seal ring, 6-SEALING FITTING, 7-plunger piston assembly, 8-pump barrel, 9-connecting tube, 10-standing valve cover, 11-box cupling, 12-copper ring, 13-lock pawl, 14-supported joint;
Embodiment
As shown in Figure 1, the utility model mainly is to separate with support by the sealing of outer pipe assembly with conventional sucker rod pump.Novel rod-type pumping unit is made up of valve rod joint 1, valve rod 2, stem guiding cover 3, plunger piston assembly 7, pump barrel 8, standing valve cover 10, stem guiding cover 3, support tube 4, pump barrel 8 and standing valve cover 10 are threaded and are integral, plunger piston assembly 7 is threaded with valve rod 2 usefulness, be installed in the pump barrel 8, valve rod 2 passes stem guiding cover 3 and links to each other with valve rod joint 1 usefulness screw thread.SEALING FITTING 6, box cupling 11, connecting tube 9, supported joint 14 are threaded and constitute outer pipe assembly, and outer pipe assembly is enclosed within on stem guiding cover 3, support tube 4 and the pump barrel 8; SEALING FITTING 6 upper ends are provided with outside thread, are provided with seal ring 5 in it and support tube 4 contacted places, and seal ring 5 is V-arrangement or bowl-type; Supported joint 14 inner chamber tops are funnel shape, and a projection is arranged at the bottom.Lower end at supported joint 14 is provided with outside thread; The lower end screw thread of standing valve cover 10 is connected with lock pawl 13, and lock pawl 13 can be hooked on the projection of supported joint 14.Between standing valve cover 10 and lock pawl 13, also can install taper copper ring 12 additional.
During use, after the upper and lower back that is threaded of the SEALING FITTING 6 of oil pipe and outer pipe assembly and supported joint 14 is lowered to predetermined stratum with oil pipe, sucker rod pump links to each other with sucker rod, be lowered in oil pipe with sucker rod, to lock pawl 13 and be pressed in the supported joint 14 under the effect of the weight of rod string, in the seal ring group 4 indentation sealing joints 6, be interference fit between them, realize main sealing, and sucker rod pump is played the effect of setting upright; The lock pawl 13 of sucker rod pump relies on the projection that resiliently deformable is hooked on supported joint 14 inner chambers also to lock.Also can install taper copper ring 12 additional at standing valve cover 10 and lock between the pawl 13, taper copper ring 12 can seat on supported joint 14 inner conical surfaces, realize auxiliary seal.
During upstroke, the up drive sucker rod pump of sucker rod plunger piston assembly is up in pump barrel, this moment, the volume of pump barrel bottom increased, pressure reduces, standing valve is opened, and the fluid on stratum enters in the pump barrel under the effect of pressure reduction, and the traveling valve on the plunger piston assembly cuts out simultaneously, fluid lifting with pump barrel top finishes until upstroke.During down stroke, sucker rod is descending, and the volume of the descending pump of plunger bottom diminishes, and pressure raises, and standing valve cuts out, and the traveling valve of plunger is opened, and fluid enters pump top through the plunger endoporus, is become face when next upstroke with giving rise to.
When needs carry out process treating to oil well (as checking pump, sand removal etc.), carry sucker rod on only needing and just sucker rod pump can be tripped out in oil well, after sucker rod pump and supported joint separate, the fluid in the oil pipe will fall into the stratum, also play the effect of oil drainer, do not polluted the well site.
Claims (3)
1, a kind of novel rod-type pumping unit, it is by valve rod joint (1), valve rod (2), stem guiding cover (3), plunger piston assembly (7), pump barrel (8), standing valve cover (10) is formed, stem guiding cover (3), support tube (4), pump barrel (8) and standing valve cover (10) are threaded and are integral, plunger piston assembly (7) is threaded with valve rod (2) and is loaded in the pump barrel (8), valve rod (2) passes stem guiding cover (3) and links to each other with valve rod joint (1) screw thread, it is characterized in that: pump barrel is with outer pipe assembly on (8), outer pipe assembly is by SEALING FITTING (6), box cupling (11), connecting tube (9), supported joint (14) composition that is threaded, SEALING FITTING (6) upper end is provided with outside thread, be provided with seal ring (5) in it and the contacted place of support tube (4), supported joint (14) inner chamber top is funnel shape, one projection is arranged at the bottom, is provided with outside thread in the lower end of supported joint (14); The lower end screw thread of standing valve cover (10) is connected with lock pawl (13).
2, novel rod-type pumping unit according to claim 1 is characterized in that described seal ring (5) is V-arrangement or bowl-type.
3, novel rod-type pumping unit according to claim 1 is characterized in that can installing taper copper ring (12) additional between described standing valve cover (10) and the lock pawl (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201136044U CN2670626Y (en) | 2003-12-31 | 2003-12-31 | Rod oil-sucking pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201136044U CN2670626Y (en) | 2003-12-31 | 2003-12-31 | Rod oil-sucking pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2670626Y true CN2670626Y (en) | 2005-01-12 |
Family
ID=34475104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201136044U Expired - Fee Related CN2670626Y (en) | 2003-12-31 | 2003-12-31 | Rod oil-sucking pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2670626Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235346A (en) * | 2011-05-27 | 2011-11-09 | 中船重工中南装备有限责任公司 | Rod type deep-mining oil-well pump |
| CN102287358A (en) * | 2011-08-30 | 2011-12-21 | 中国石油大学(华东) | Long-plunger type dual-barrel coal-dust resistant discharging and extracting pump |
| CN106640610A (en) * | 2016-11-04 | 2017-05-10 | 中国石油天然气股份有限公司 | Trinity antiscale oil well pump |
| CN108343596A (en) * | 2018-02-07 | 2018-07-31 | 胜利油田金岛实业有限责任公司胜岛石油机械厂 | A kind of double pawl lock claw prisoners consolidate the redundance type oil well pump of valve ball |
| CN109611322A (en) * | 2018-11-23 | 2019-04-12 | 西安石油大学 | A kind of oil well pump |
| CN114687706A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Many rounds of sand washing flowing back integration tubular column |
-
2003
- 2003-12-31 CN CNU2003201136044U patent/CN2670626Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235346A (en) * | 2011-05-27 | 2011-11-09 | 中船重工中南装备有限责任公司 | Rod type deep-mining oil-well pump |
| CN102287358A (en) * | 2011-08-30 | 2011-12-21 | 中国石油大学(华东) | Long-plunger type dual-barrel coal-dust resistant discharging and extracting pump |
| CN102287358B (en) * | 2011-08-30 | 2014-03-12 | 中国石油大学(华东) | Long-plunger type dual-barrel coal-dust resistant discharging and extracting pump |
| CN106640610A (en) * | 2016-11-04 | 2017-05-10 | 中国石油天然气股份有限公司 | Trinity antiscale oil well pump |
| CN108343596A (en) * | 2018-02-07 | 2018-07-31 | 胜利油田金岛实业有限责任公司胜岛石油机械厂 | A kind of double pawl lock claw prisoners consolidate the redundance type oil well pump of valve ball |
| CN109611322A (en) * | 2018-11-23 | 2019-04-12 | 西安石油大学 | A kind of oil well pump |
| CN114687706A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Many rounds of sand washing flowing back integration tubular column |
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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 |
Owner name: ZHONGYUAN ZONGJI PETROLEUM EQUIPMENT CO., LTD. Free format text: FORMER NAME: MACHINERY GENERAL PLANT, ZHONGYUAN PETROLEUM PROSPECTING BUREAU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 457001 No. 365, Daqing Road, Puyang, Henan Patentee after: Zhongyuan Zongji Petroleum Equipment Co., Ltd. Address before: 457001 No. 365, Daqing Road, Puyang, Henan Patentee before: Henan ZYZJ Petroleum Equipment Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050112 Termination date: 20101231 |