CN1186171A - Rod oil sucking pump - Google Patents
Rod oil sucking pump Download PDFInfo
- Publication number
- CN1186171A CN1186171A CN96114661A CN96114661A CN1186171A CN 1186171 A CN1186171 A CN 1186171A CN 96114661 A CN96114661 A CN 96114661A CN 96114661 A CN96114661 A CN 96114661A CN 1186171 A CN1186171 A CN 1186171A
- Authority
- CN
- China
- Prior art keywords
- plunger
- pump barrel
- rod
- valve ball
- joint
- 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.)
- Pending
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Abstract
A rod-type oil-well pump is composed of pull rod, plunger, pump cylinder and anti-sand tube. It features that said pull rod has a joint to prevent ecentric friction and a sealing and locating inner joint to pump cylinder, which has sealing ring and fastening ring. The top edge of plunger has acute angle and an oil-water separator is arranged over the plunger. A set of valve ball assembly is set up at the lower part of plunger and bottom of pump cylinder. Its advantages include preventing ecenetric friction, good lubricating small flow resistance, high flow, long service life and low cost.
Description
The present invention relates to a kind of oil field and promote the pump that crude oil is used, especially sucker rod pump about combining by pump barrel and plunger.
At present, be used to promote the sucker rod pump of crude oil in the oil field, how form by pull bar, pump barrel, plunger and valve ball assembly.Feel in the practice, often because of pump housing external diameter is big, cause oil pipe and pump housing working clearance little, once the tubing wall wax deposition, fouling or oil are thick, and workover eration is easy breaks down, and often because of the ball cover perforate gross area in the valve ball assembly is little, causes flow resistance big, and oil output descends; Often, must play oil outlet tube when picking up pump, cause economic loss because of sucker rod pump down-hole fixed component rapid wear; Also often because of the jump ring modular construction is unreasonable, it is loosening and can't produce oil that pump barrel takes place, and the different size sucker rod pump is difficult to use in same tubing string.
The object of the present invention is to provide a kind of eccentric wear that prevents, reduce friction, the sand control sand removal, the flow resistance small flow is big, oil-proof, and the down-hole fixed component life-span is long, and interchangeability is strong, the rod-type pumping unit that cost is low.
The object of the present invention is achieved like this: promptly comprise helmet, box cupling, pull bar, on delivery connection, travelling valve ball assembly, pump barrel, standing valve ball assembly, sand control pipe joint and anti-sandpipe rod-type pumping unit basically, carried out technological improvement, its way is:
Pull bar top is provided with the rod connector that prevents the plunger eccentric wear and is used to seal the pump barrel spigot that makes the pump barrel location, and the spigot body has outer annular groove, seal ring is housed in the groove and makes the fixing collar of pump barrel.
Pump barrel top is provided with and is used for the pump barrel socket that cooperates with seal ring, collar, and this joint only is connected to is convenient to the box cupling that links to each other with oil pipe.
Be provided with hollow plunger in the pump barrel, the bottom of plug is provided with travelling valve ball assembly, and wherein ball cover has a plurality of bar holes, and the top of plug has the sharp edge edge, and top is connected on the pull bar by last delivery connection.
On the plane of last delivery connection and hollow plunger combination, be provided with the bucket formula oil and water seperator that supplies plunger and the lubricated usefulness of pump barrel by giving tight power in the plunger internal upper part, on the plunger active section that cooperates with it, laterally have the hole that oil can be passed through.
In order to gain in strength and corrosion resistant effect against corrosion, the pump barrel socket adopts high-strength stainless steel material to make, and collar adopts spring steel material to make.
The present invention has following progress compared to existing technology:
1, because pump barrel adopts integral material to make, overcome more piece bush type pump barrel and made that difficulty, assembling trouble, precision are low, the disadvantage of rapid wear.
2, because pull bar top is provided with rod connector, set upright reciprocating parts, overcome the eccentric wear phenomenon and taken place.
3, owing in plunger, be provided with oil and water seperator, improve the lubrication effect between plunger and pump barrel, reduced surface friction drag, prolonged the working life of plunger and pump barrel.
4,,, effectively prevented the holddown phenomenon so the dirt that can remove on the pump barrel inwall amasss thing because plunger head has acute angle thin cartridge type active section.
5, owing to reduced the group number of valve ball assembly and the flow area of increase valve ball cover, make to cause flow resistance decline, oil yield rate increases.
6, owing to adopt stainless steel to make the pump barrel socket, overcome the corrosion-prone shortcoming of existing joint, prolonged its down-hole working life.
7,, therefore overcome the shortcoming of the perishable and poor reliability of hard sealing owing to adopt soft seal.
8, owing to adopt elastic material to make single collar, holder complex structure, processing charges height and the disadvantage that volume is big, safety coefficient is little of overcome by supporting ring, stop to encircle, jump ring being formed.
9, because unified outside dimension is adopted in the pump barrel upper connection, realized the interchangeability of different size pump.
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is the rod-type pumping unit structural representation.
As shown in Figure 1, it comprises rod-type pumping unit: helmet (1), box cupling (4), pull bar (8), last delivery connection (9), travelling valve ball assembly (12), pump barrel (13), standing valve ball assembly (14), sand control pipe joint (15) and anti-sandpipe (16).Wherein: pull bar (8) top is provided with the rod connector (2) of anti-plunger eccentric wear and is used to seal the pump barrel spigot (3) that makes the pump barrel location, this joint (3) body has outer annular groove, and the seal ring (5) that the software high-strength material makes, the collar (6) that rigidity is big, the good springiness material is made are housed in the groove.
Pump barrel (13) top cover is useful on seal ring (5), collar (6) and cooperates, the pump barrel socket (7) that utilizes stainless steel material to make, and this upper end of joint is connected to be convenient to the continuous box cupling (4) of oil pipe.
Be provided with hollow plunger (11) in the pump barrel (13), this plug bottom is provided with travelling valve ball assembly (12), has bar hole on the ball cover in the assembly, and plunger head has sharp edge along (a), and top is connected on the pull bar by last delivery connection (9).
On the plane of last delivery connection (9) and hollow plunger combination, be provided with for plunger and the lubricated bucket formula oil and water seperator (10) of pump barrel in the plunger internal upper part by giving tight power, laterally have the aperture (b) that oil is passed through on the plunger active section that is mated.
Claims (2)
1, a kind of rod-type pumping unit, it comprises helmet (1), box cupling (4), pull bar (8), last delivery connection (9), travelling valve ball assembly (12), pump barrel (13), standing valve ball assembly (14), sand control pipe joint (15) and anti-sandpipe (16) is characterized in that:
Pull bar (8) top is provided with the rod connector (2) that prevents the plunger eccentric wear and is used to seal the pump barrel spigot (3) that makes the pump barrel location, and the body of joint (3) has circular groove, the seal ring (5) that the software high-strength material is made is housed, collar (6) in the groove;
Pump barrel (13) top is provided with and is used for and seal ring (5), the pump barrel socket (7) that collar (6) cooperates, and this upper end of joint is connected to be convenient to the continuous box cupling (4) of oil pipe;
Be provided with hollow plunger (11) in the pump barrel (13), this plug bottom is provided with travelling valve ball assembly (12), and the top has sharp edge along (a), links to each other by the same pull bar of last delivery connection (9) (8);
On the plane that last delivery connection (9) and hollow plunger combine, be provided with for plunger and the lubricated bucket formula oil and water seperator (10) of pump barrel in the plunger internal upper part by giving tight power, on the plunger active section that cooperates with it, laterally have and make oily hole (b) of circulating.
2, a kind of rod-type pumping unit according to claim 1 is characterized in that said pump barrel socket (7), adopts high-strength stainless steel material to make, and collar (6) adopts spring steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96114661A CN1186171A (en) | 1996-12-25 | 1996-12-25 | Rod oil sucking pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96114661A CN1186171A (en) | 1996-12-25 | 1996-12-25 | Rod oil sucking pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1186171A true CN1186171A (en) | 1998-07-01 |
Family
ID=5122233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96114661A Pending CN1186171A (en) | 1996-12-25 | 1996-12-25 | Rod oil sucking pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1186171A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240792B (en) * | 2007-12-07 | 2010-06-23 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | High water-containing rod pumped well oiling type double-passage eccentric wear-proof process |
| CN102102658A (en) * | 2009-12-16 | 2011-06-22 | 中国石油天然气股份有限公司 | High-temperature ceramic pump |
| CN103291605A (en) * | 2013-05-28 | 2013-09-11 | 濮阳市科力达机械制造有限公司 | Efficient protective oil pumping device and application method |
-
1996
- 1996-12-25 CN CN96114661A patent/CN1186171A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240792B (en) * | 2007-12-07 | 2010-06-23 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | High water-containing rod pumped well oiling type double-passage eccentric wear-proof process |
| CN102102658A (en) * | 2009-12-16 | 2011-06-22 | 中国石油天然气股份有限公司 | High-temperature ceramic pump |
| CN103291605A (en) * | 2013-05-28 | 2013-09-11 | 濮阳市科力达机械制造有限公司 | Efficient protective oil pumping device and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |