CN204703864U - A kind of oil well ground piston type lifting device - Google Patents
A kind of oil well ground piston type lifting device Download PDFInfo
- Publication number
- CN204703864U CN204703864U CN201520354359.9U CN201520354359U CN204703864U CN 204703864 U CN204703864 U CN 204703864U CN 201520354359 U CN201520354359 U CN 201520354359U CN 204703864 U CN204703864 U CN 204703864U
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- Prior art keywords
- piston cylinder
- piston
- oil
- oil well
- flow line
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- 239000003129 oil well Substances 0.000 title claims abstract description 34
- 238000005086 pumping Methods 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 29
- 239000010779 crude oil Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model belongs to oil well ground artificial lifting way technical field, specifically provide a kind of oil well ground piston type lifting device, comprise piston cylinder (4) and can in piston cylinder (4) reciprocating piston (5), take slipper seal between piston (5) and piston cylinder (4); The lower end of described piston cylinder (4) is connected with oil pick-up tube (2), and be provided with in the connector of piston cylinder (4) and oil pick-up tube (2) can only by the oil pumping ball-and-seat (3) of crude stream to piston cylinder (4); The lower end of described piston cylinder (4) is also connected with flow line (8), and be provided with in the connector of piston cylinder (4) and flow line (8) can only by the fuel-displaced ball-and-seat (7) of crude stream to flow line (8).This device capital equipment, all more than well head, without sucker rod, oil well pump and down-hole annex etc., avoids rod and tube partial-wear, and easy to maintenance, decreases rate impact when oil well drives a well, reduces cost of production investment, add benefit.
Description
Technical field
The utility model belongs to oil well ground artificial lifting way technical field, it is the lifting device that a kind of mechanical reciprocation by ground piston is pumped, a specifically oil well ground piston type lifting device, is applicable to the oil well that rod and tube partial-wear easily occurs for directional well, inclined shaft etc.
Background technology
Oil pumper has rod recovering system with advantages such as its structure are simple, durable, a kind of artificial lift device that field use is maximum in recent years, but along with making constant progress of the correlation techniques such as collecting well group, high angle hole drilling well and oil recovery, there is the drawback of rod recovering system also constantly to highlight.One is rod and tube partial-wear problem, along with being on the increase of directional well and high angle hole, the disconnected well number of rod and tube partial-wear and bar rises year by year, as celebrated sucker rod fault in recent years account for about 30% of upkeep operation sum long, and about 70% to cause because of eccentric wear in sucker rod fault.Optimized by spar structure in recent years and the carrying out of the work such as supporting anti-abrading block, eccentric wear problem is eased, but does not obtain essence and solve.Every year because eccentric wear well is administered and safeguard and will spend enormous expenditure, also had a strong impact on the production time efficiency of oil well simultaneously.Two is along with oil well well depth constantly becomes large, roofbolt length also becomes large, but the efficiency of roofbolt system transferring energy is only about 50-85%, and along with the change of the roofbolt degree of depth large and reduce, rod string deadweight is simultaneously comparatively large, and it is comparatively large that roofbolt load accounts for tool polished rod load proportion, and roofbolt autophage energy is larger, cause machine-pumped oil well effective power and system effectiveness on the low side, power consumption is large.Three is that wax, dirt or corrosion product etc. easily cause deep well pump fault, and the maintainability operation occurred because of failure of pump every year accounts for more than 60% of total operation number because wellbore conditions is complicated.Four is that machine-pumped oil well rod pumping system needs sucker rod, oil well pump and other well head facility, and cost of production drops into higher.
Need to design a kind of oil well ground piston type lifting device, this device capital equipment all can more than well head for this reason, and without sucker rod, oil well pump and down-hole annex etc., it is made to avoid rod and tube partial-wear, and easy to maintenance, reduce rate impact when oil well drives a well, reduce cost of production investment, improve effects.
Utility model content
The utility model object overcomes the shortcoming existed in above-mentioned prior art, devise a kind of oil well ground piston type lifting device, this device capital equipment is all more than well head, without sucker rod, oil well pump and down-hole annex etc., avoid rod and tube partial-wear, and easy to maintenance, decrease rate impact when oil well drives a well, reduce cost of production investment, improve effects.
For this reason, the utility model provides a kind of oil well ground piston type lifting device, comprise piston cylinder and under external force can in piston cylinder reciprocating piston, take the mode of slipper seal between piston and piston cylinder; The lower end of described piston cylinder is connected with oil pick-up tube, and be provided with in the connector of piston cylinder and oil pick-up tube can only by the oil pumping ball-and-seat of crude stream to piston cylinder; The lower end of described piston cylinder is also connected with flow line, and be provided with in the connector of piston cylinder and flow line can only by the fuel-displaced ball-and-seat of crude stream to flow line.
Above-mentioned piston upper end is fixed with piston rod.
The lower end of above-mentioned piston rod adopts with the fixed form between piston and is threaded.
Above-mentioned oil pick-up tube straight down and connect with the lower surface of piston cylinder.
Above-mentioned flow line in the horizontal direction and connect with the side of piston cylinder lower end.
The beneficial effects of the utility model: this oil well ground piston type lifting device that the utility model provides, comprise piston cylinder and under external force can in piston cylinder reciprocating piston, take slipper seal between piston and piston cylinder; The lower end of piston cylinder is connected with oil pick-up tube, and be provided with in the connector of piston cylinder and oil pick-up tube can only by the oil pumping ball-and-seat of crude stream to piston cylinder; The lower end of piston cylinder is also connected with flow line, and be provided with in the connector of piston cylinder and flow line can only by the fuel-displaced ball-and-seat of crude stream to flow line.Compared with this structure that the utility model provides has rod recovering system with conventional pumping unit, there is following advantage:
1. without the need to down-hole annexes such as supporting sucker rod, oil well pumps, fundamentally stop the generation of side-abrasion of rod string, oil well pump fault, maintainability operation is by minimizing more than 80%, and during upkeep operation team oil well production, the impact of rate also will significantly reduce, and save investment of production cost and maintainability operating cost;
2. the ancillary facility of this device is all placed on ground, and job stability is high, safeguard and easy to operate, reduce maintenance difficulties and cost, improve the economic benefit of oil development;
3. this device is economized without the need to quadric chain and sucker rod transferring energy, decreases the loss of equipment self-energy, improves ground driving arrangement energy transfer efficiency, reduce oil recovery energy consumption, improves system effectiveness.
Below with reference to accompanying drawing, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Description of reference numerals: 1, oil pipe; 2, oil pick-up tube; 3, oil pumping ball-and-seat; 4, piston cylinder; 5, piston; 6, pitch brace; 7, fuel-displaced ball-and-seat; 8, flow line.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1, the utility model provides a kind of oil well ground piston type lifting device, comprise piston cylinder 4 and under external force can in piston cylinder 4 reciprocating piston 5, take the mode of slipper seal between piston 5 and piston cylinder 4; The lower end of described piston cylinder 4 is connected with oil pick-up tube 2, and be provided with in piston cylinder 4 connector with oil pick-up tube 2 can only by the oil pumping ball-and-seat 3 of crude stream to piston cylinder 4; The lower end of described piston cylinder 4 is also connected with flow line 8, and be provided with in piston cylinder 4 connector with flow line 8 can only by the fuel-displaced ball-and-seat 7 of crude stream to flow line 8.
Embodiment 2:
On the basis of embodiment 1, described piston 4 upper end is fixed with piston rod 6, and concrete fixed form can adopt and be threaded.Described oil pick-up tube 2 straight down and connect with the lower surface of piston cylinder 4.Described flow line 8 in the horizontal direction and connect with the side of piston cylinder 4 lower end.
Piston rod 6 pulls piston 5 to do mechanical reciprocation in piston cylinder 4, and between piston 5 and piston cylinder, sealing means is slipper seal.Ground driving arrangement by power transmission to pitch brace, pitch brace promotes piston and moves back and forth in piston cylinder, move back and forth in up stroke process at piston machine, pitch brace 6 pulls piston stroking upward, fuel-displaced ball-and-seat is closed, oil pumping ball-and-seat is opened, and the crude oil in pit shaft enters piston cylinder by oil pumping ball-and-seat; Be connected with well head oil pipe hanger bottom piston cylinder.During downstroke, piston rod promotes descent of piston, and fuel-displaced ball-and-seat is opened, and oil pumping ball-and-seat is closed, and the crude oil in piston cylinder, by fuel-displaced ball-and-seat, completes oil recovery process through flow line.The continuous working in reciprocating mode of this device mode like this, can by crude oil continuous extraction from pit shaft.Ball-and-seat of wherein pumping is identical with the structure of fuel-displaced ball-and-seat, and just installation direction is contrary.
The operating principle of this device promotes piston by Surface power drive equipment to move back and forth in compression chamber, changes the spatial volume in piston cylinder, thus change piston cylinder pressure, utilize piston cylinder and well wellbore internal pressure differences that crude oil is lifted to ground.When piston moves from bottom to top, piston cylinder inner volume increases, and pressure diminishes, and fuel-displaced ball-and-seat is closed, and oil pumping ball-and-seat is opened, and in pit shaft, liquid enters piston cylinder from oil pumping ball-and-seat.When piston moves from the top down, piston cylinder inner volume diminishes, pressure increase, and oil pumping ball-and-seat is closed, and fuel-displaced ball-and-seat is opened, and in piston cylinder, liquid enters flow line through fuel-displaced ball-and-seat and completes oil extraction.Continuous print working in reciprocating mode like this, can by crude oil extraction from pit shaft.
Therefore, compared with this structure that the utility model provides has rod recovering system with conventional pumping unit, there is following advantage:
1. without the need to down-hole annexes such as supporting sucker rod, oil well pumps, fundamentally stop the generation of side-abrasion of rod string, oil well pump fault, maintainability operation is by minimizing more than 80%, and during upkeep operation team oil well production, the impact of rate also will significantly reduce, and save investment of production cost and maintainability operating cost;
2. the ancillary facility of this device is all placed on ground, and job stability is high, safeguard and easy to operate, reduce maintenance difficulties and cost, improve the economic benefit of oil development;
3. this device is economized without the need to quadric chain and sucker rod transferring energy, decreases the loss of equipment self-energy, improves ground driving arrangement energy transfer efficiency, reduce oil recovery energy consumption, improves system effectiveness.
The part do not described in detail in present embodiment belongs to the known conventional means of the industry, does not describe one by one here.More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, everyly all belongs within protection domain of the present utility model with the same or analogous design of the utility model.
Claims (5)
1. an oil well ground piston type lifting device, is characterized in that: comprise piston cylinder (4) and under external force can in piston cylinder (4) reciprocating piston (5), take slipper seal between piston (5) and piston cylinder (4); The lower end of described piston cylinder (4) is connected with oil pick-up tube (2), and be provided with in the connector of piston cylinder (4) and oil pick-up tube (2) can only by the oil pumping ball-and-seat (3) of crude stream to piston cylinder (4); The lower end of described piston cylinder (4) is also connected with flow line (8), and be provided with in the connector of piston cylinder (4) and flow line (8) can only by the fuel-displaced ball-and-seat (7) of crude stream to flow line (8).
2. a kind of oil well ground as claimed in claim 1 piston type lifting device, is characterized in that: described piston (4) upper end is fixed with piston rod (6).
3. a kind of oil well ground as claimed in claim 2 piston type lifting device, is characterized in that: the lower end of described piston rod (6) adopts with the fixed form between piston (5) and is threaded.
4. a kind of oil well ground as claimed in claim 1 piston type lifting device, is characterized in that: described oil pick-up tube (2) straight down and connect with the lower surface of piston cylinder (4).
5. a kind of oil well ground as claimed in claim 1 piston type lifting device, is characterized in that: described flow line (8) in the horizontal direction and connect with the side of piston cylinder (4) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520354359.9U CN204703864U (en) | 2015-05-28 | 2015-05-28 | A kind of oil well ground piston type lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520354359.9U CN204703864U (en) | 2015-05-28 | 2015-05-28 | A kind of oil well ground piston type lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703864U true CN204703864U (en) | 2015-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520354359.9U Expired - Fee Related CN204703864U (en) | 2015-05-28 | 2015-05-28 | A kind of oil well ground piston type lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204703864U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410303A (en) * | 2019-09-04 | 2019-11-05 | 盘锦辽河油田博洋工控技术有限公司 | A kind of liquid pumping method and pumping device applied in oil/gas well |
| CN110863804A (en) * | 2019-12-02 | 2020-03-06 | 安徽物迅科技有限公司 | Oil extraction equipment |
| CN110863804B (en) * | 2019-12-02 | 2024-05-31 | 安徽物迅科技有限公司 | Oil extraction equipment |
-
2015
- 2015-05-28 CN CN201520354359.9U patent/CN204703864U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410303A (en) * | 2019-09-04 | 2019-11-05 | 盘锦辽河油田博洋工控技术有限公司 | A kind of liquid pumping method and pumping device applied in oil/gas well |
| CN110863804A (en) * | 2019-12-02 | 2020-03-06 | 安徽物迅科技有限公司 | Oil extraction equipment |
| CN110863804B (en) * | 2019-12-02 | 2024-05-31 | 安徽物迅科技有限公司 | Oil extraction equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 |