CN2338511Y - Tubular soft plunger well pump - Google Patents
Tubular soft plunger well pump Download PDFInfo
- Publication number
- CN2338511Y CN2338511Y CN 98200078 CN98200078U CN2338511Y CN 2338511 Y CN2338511 Y CN 2338511Y CN 98200078 CN98200078 CN 98200078 CN 98200078 U CN98200078 U CN 98200078U CN 2338511 Y CN2338511 Y CN 2338511Y
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- piston body
- valve
- plunger
- level
- joint
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- Expired - Fee Related
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Abstract
The utility model relates to a tubular deep well pump with a soft plunger, composed of a working barrel and a plunger which is arranged inside the working barrel. The working barrel is composed of an entire pump barrel, an upper and a lower couplings, a fixed valve cover, a fixed valve seat, a fixed valve ball, a fixed valve joint, a sand prevention pipe and a sand prevention cap; the plunger is composed of an oil rod joint, a multistage plunger body, a soft plunger of a multistage sliding sleeve type valve, a short connector for a lower valve cover, an oil inlet valve ball, an oil inlet valve seat, the lower valve cover, a valve seat joint, etc. The utility model has the advantages of simple structure, easy processing and operation, powerful pumping capability, abrasion resistance, and good performance of sand prevention. The work of pump inspection can be completed only by replacing a plurality of sealing sleeves.
Description
The utility model relates to a kind of soft plunger deep-well pump of tubular type that is used for oilfield exploitation.
In recent years, because the underground condition of old filed constantly worsens, especially the increase of measure such as pressure break, chemical treatment, make downhole corrosion, the situation of shaking out is serious, causes the dark formula pump of the steel column plug tubular type scrappage of present use to rise year by year, cost increases, because steel plunger and lining relative movement every day are more than up to ten thousand times, produce the relative friction of steel and steel part, matching gap is increased gradually, the wastage increase.Simultaneously, down-hole liquid carries mud, sand grains, easy sand card, and the pump serious wear is pulled pump barrel.In addition, must play oil outlet tube during clear the inspection just can overhaul, oil connection place serious wear, inspection pump difficulty, lining must make the lining balance smooth with hydraulic pressure peace position or other peace position measure, install after bulge test can be used, wasted great amount of manpower and material resources, financial resources, and maintenance to account for the well time long, make oil well can not get effective utilization.
The deficiency that the purpose of this utility model exists at prior art and design a kind of simple in structure, be easy to process, operation is convenient, the soft plunger deep-well pump of tubular type being convenient to keep in repair, it has that pumping capacity is strong, well workover number of times and account for the characteristics that the well time is few, not easy to wear, sand control capability good, cost of production is low, has improved the utilization ratio of oil well greatly and rate when producing.
The purpose of this utility model is achieved in that the soft plunger deep-well pump of a kind of tubular type, it is made of the piston two-part that are equipped with in working barrel and the working barrel, its working barrel partly include whole pump barrel, pump barrel upper end be equipped with the last box cupling, the pump barrel lower end that connect oil pipe be equipped be equipped with in the following box cupling that is connected and fixed the valve cover, the standing valve cover be provided with in standing valve seat, the seat standing valve joint is housed in standing valve ball, the chamber, standing valve cover lower end, standing valve joint lower end is connected to and prevents that sandpipe and sand control tube end are set with the sand control cap; Piston portion includes the joint that connects sucker rod, the oil rod joint lower end is connected to the one-level piston body, the outside, piston body bottom is with the soft plunger of one-level, the piston body lower end is connected to the secondary piston body, the secondary plunger lower body part outside is with the soft plunger of secondary sliding bush type valve, secondary piston body lower end is connected to three grades of piston body and is with three grades of soft plungers of sliding bush type valve, termination is with the level Four piston body of the soft plunger of level Four under three grades of piston body, level Four piston body lower end is connected to the following valve cover short circuit that matches with the soft plunger of level Four, termination descends to the mortal world under the following valve cover short circuit, and you cover, be equipped with in the following valve cover and be provided with termination valve seat joint under oil-feed valve ball and the following valve cover in oil-feed valve seat and the seat.Its working principle is: when up stroke, because head of liquid promotes two, three grades of sliding sleeves and slides down to lower dead centre in the socket, thereby seal two, three grades of plunger body delivery holes and form sealing state, sliding sleeve has played the effect of slip valve, meanwhile, the expansion of sliding sleeve and soft plunger outward is played the plunger effect with the pump barrel sealing.When down stroke, because the deadweight effect of sucker rod makes plunger body move downward the oil-feed valve and closes, liquid upwards flows, and opens travelling valve ball and sliding sleeve and opens plunger body delivery holes at different levels simultaneously, and liquid enters oil pipe, sliding sleeve restores to the original state, and promptly the pump drain is finished a to-and-fro motion.
Above-mentioned design proposal has been cancelled the lining of conventional pumps, adopts whole pump barrel, pack into have toughness, the plunger of elasticity and wear resistance, plunger is made up of the multistage column cock body, and hydraulic pressure is complementary between plunger bodies at different levels can be strong, makes travelling valve with the tandem sliding sleeve, both played the travelling valve effect, play the plunger effect again, pumping capacity is strong, anticorrosion antiwear, sand control card, the inspection pump is easy to maintenance, the life-span is long, pump efficiency is high, conformability is wide, is a kind of desirable deep-well pump.
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
Fig. 1 is the utility model structure sectional view.
Fig. 2 is an oil rod joint schematic representation of the present utility model.
Fig. 3 is an one-level piston body schematic representation of the present utility model.
Fig. 4 is the soft plunger schematic representation of one-level of the present utility model.
Fig. 5 is a secondary piston body schematic representation of the present utility model.
Fig. 6 is three grades of piston body schematic representation of the present utility model.
Fig. 7 is an oil-feed valve seat schematic representation of the present utility model.
Fig. 8 is a valve cover schematic representation down of the present utility model.
As shown in Figure 1, the soft plunger deep-well pump of a kind of tubular type, it is made of the piston two-part that are equipped with in working barrel and the working barrel, it is characterized in that: working barrel partly includes whole pump barrel (16), the last box cupling (1) that connects oil pipe is equipped with in pump barrel (16) upper end, the following box cupling (17) that is connected and fixed valve cover (20) is equipped with in pump barrel (16) lower end, standing valve seat (19) is housed in the standing valve cover (20), be provided with standing valve ball (18) in the seat, standing valve cover (20) is equipped with standing valve joint (21) in the chamber, lower end, standing valve joint (21) lower end is connected to anti-sandpipe (22) and anti-sandpipe (22) end is set with sand control cap (23); Piston portion includes the joint (2) that connects sucker rod, oil rod joint (2) lower end is connected to one-level piston body (3), the outside, piston body (3) bottom is with the soft plunger of one-level (4), piston body (3) lower end is connected to secondary piston body (5), the outside, secondary piston body (5) bottom is with the soft plunger of secondary sliding bush type valve (6), secondary piston body (5) lower end be connected to three grades of piston body (7) and on be with three grades of soft plungers of sliding bush type valve (8), termination is with the level Four piston body (9) of the soft plunger of level Four (10) under three grades of piston body (7), level Four piston body (9) lower end is connected to the following valve cover short circuit (11) that matches with the soft plunger of level Four (10), termination descends to the mortal world under the following valve cover short circuit (11), and you cover (14), be equipped with in the following valve cover (14) and be provided with termination valve seat joint (15) under oil-feed valve ball (12) and the following valve cover (14) in oil-feed valve seat (13) and the seat.Whole pump barrel (16) light knot internal surface and piston portion match and close the working barrel effect.As shown in Figure 2, oil rod joint (2) top is connected with sucker rod, and the bottom connects one-level piston body (3), is provided with equally distributed four intake chutes (24) around the middle and upper part.As shown in Figure 3, one-level piston body (3) down middle part is provided with that delivery hole (25) matches with the soft plunger of one-level (4) and the outside is provided with limited step (26), when head of liquid enters delivery hole (25), the soft plunger of one-level (4) is expanded outwardly be close to the working barrel inwall, play the plunger effect.As shown in Figure 4, the soft plunger of one-level (4) inside studs with the spacing skeleton (27) of metal ring and lower end mouth is seal face (28) and spacing envelope of secondary piston body (5) seal face.As shown in Figure 5, secondary piston body (5) upper end-hole is that cone seal end face (29) cooperates with the soft plunger of one-level (4) lower end mouth, seal, the outside, middle part is provided with limited step (30) and the underpart is provided with equally distributed three keyway shape delivery holes (31), and the end is connected with three grades of piston body (7).The soft plunger of secondary sliding bush type valve (6) shape is as shown in Figure 4, its inner chamber is enclosed within secondary piston body (5) lower end, Feng Miduan down, because secondary piston body (5) is provided with limited step (30), make and open pod apertures (31) when moving on to limited step (30) on it fully, oil stream enters secondary delivery hole inflow oil pipe to the one-level piston body by delivery hole (31), be in the down stroke stage this moment, the soft plunger of secondary sliding bush type valve (6) is in delivery hole (31) open mode, when sliding sleeve falls into lower dead centre sealed port place, play the effect of valve one-way valve.As shown in Figure 6, three grades of piston body (7) upper end-hole is cone seal end face (32), outer upper ends is provided with equally distributed three limited steps (33), it is stuck in case the soft plunger sliding sleeve of secondary (6) is crossed the position, and the below is provided with equally distributed three delivery holes (34), delivery hole (34) below is a limited step, place, screw thread top, pipe bottom below the step is provided with equally distributed three delivery holes (3 5) again, on the position three grades of soft plungers of sliding bush type valve (8) are housed between the delivery hole (34,35) up and down, sealed port plays the sliding sleeve skeleton function down.Three grades of soft plungers of sliding bush type valve (8) shape is together as Fig. 4, and its working state is similar to the soft plunger of secondary sliding bush type valve (6).Level Four piston body (9) structure is similar to three grades of piston body (7), the same Fig. 4 of the soft plunger of level Four (10) shape, and it plays plunger and centralizing function.As shown in Figure 7, oil-feed valve seat (13) is a dumbbell shape, and its endoporus upper and lower end is that oblique seal face (36) matches with oil-feed valve ball (12), plays the one-way valve effect.As shown in Figure 8, the last Transverse plane of following valve cover (14) is provided with four equally distributed pod apertures (37) and inner chamber is provided with a raised step (38), step (38) below is the sealing plane port, the oil-feed valve ball (12) of packing into, lower end mouth pack into oil-feed you the seat (13), valve seat (13) is gone up sealing plane and is matched with following valve cover (14) step lower seal end face, plays the sealing position-limiting action.
Claims (8)
1, the soft plunger deep-well pump of a kind of tubular type, it is made of the piston two-part that are equipped with in working barrel and the working barrel, it is characterized in that: working barrel partly includes whole pump barrel (16), the last box cupling (1) that connects oil pipe is equipped with in pump barrel (16) upper end, the following box cupling (17) that is connected and fixed valve cover (20) is equipped with in pump barrel (16) lower end, standing valve seat (19) is housed in the standing valve cover (20), be provided with standing valve ball (18) in the seat, standing valve cover (20) is equipped with standing valve joint (21) in the chamber, lower end, standing valve joint (21) lower end is connected to anti-sandpipe (22) and anti-sandpipe (22) end is set with sand control cap (23); Piston portion includes the joint (2) that connects sucker rod, oil rod joint (2) lower end is connected to one-level piston body (3), the outside, piston body (3) bottom is with the soft plunger of one-level (4), piston body (3) lower end is connected to secondary piston body (5), the outside, secondary piston body (5) bottom is with the soft plunger of secondary sliding bush type valve (6), secondary piston body (5) lower end be connected to three grades of piston body (7) and on be with three grades of soft plungers of sliding bush type valve (8), termination is with the level Four piston body (9) of the soft plunger of level Four (10) under three grades of piston body (7), level Four piston body (9) lower end is connected to the following valve cover short circuit (11) that matches with the soft plunger of level Four (10), termination descends to the mortal world under the following valve cover short circuit (11), and you cover (14), be equipped with in the following valve cover (14) and be provided with termination valve seat joint (15) under oil-feed valve ball (12) and the following valve cover (14) in oil-feed valve seat (13) and the seat.
2, pump according to claim 1 is characterized in that: be provided with equally distributed intake chute (24) around oil rod joint (2) middle and upper part.
3, pump according to claim 1 is characterized in that: the following middle part of one-level piston body (3) is provided with delivery hole (25) and the outside is provided with limited step (26).
4, pump according to claim 1 is characterized in that: the soft plunger of one-level (4) inside studs with spacing skeleton (27) and lower end mouth is seal face (28).
5, pump according to claim 1 is characterized in that: secondary piston body (5) upper end-hole is a cone seal end face (29), the outside, middle part is provided with limited step (30) and the underpart is provided with equally distributed keyway shape delivery hole (31).
6, pump according to claim 1 is characterized in that: three grades of piston body (7) upper end-hole is that cone seal end face (32), outer upper ends are provided with below equally distributed limited step (33), the step and place, pipe top, the end is provided with equally distributed delivery hole (34,35) respectively.
7, pump according to claim 1 is characterized in that: oil-feed valve seat (13) is a dumbbell shape, and its endoporus upper and lower end is oblique seal face (36).
8, pump according to claim 1 is characterized in that: the last Transverse plane of following valve cover (14) is provided with equally distributed delivery hole (37) and inner chamber is provided with raised step (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98200078 CN2338511Y (en) | 1998-01-12 | 1998-01-12 | Tubular soft plunger well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98200078 CN2338511Y (en) | 1998-01-12 | 1998-01-12 | Tubular soft plunger well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2338511Y true CN2338511Y (en) | 1999-09-15 |
Family
ID=33957673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98200078 Expired - Fee Related CN2338511Y (en) | 1998-01-12 | 1998-01-12 | Tubular soft plunger well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2338511Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725513A (en) * | 2009-06-25 | 2010-06-09 | 单欣 | Soft piston type submerged pump |
| CN103821704A (en) * | 2014-03-17 | 2014-05-28 | 铁岭一达石油机械制造有限公司 | Anti-corrosion sand-preventing wear-resistant oil well pump |
| CN104033134A (en) * | 2013-12-19 | 2014-09-10 | 鄂德刚 | Low-rise super-long stroke intelligent control winding type pulling oil production system and working method |
| CN104728098A (en) * | 2013-12-19 | 2015-06-24 | 鄂德刚 | Multistage plunger super-long-stroke oil well pump |
| CN110206494A (en) * | 2018-02-28 | 2019-09-06 | 中国石油天然气股份有限公司 | Cable-styled oil pumping unit matching process pipe string |
-
1998
- 1998-01-12 CN CN 98200078 patent/CN2338511Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725513A (en) * | 2009-06-25 | 2010-06-09 | 单欣 | Soft piston type submerged pump |
| CN104033134A (en) * | 2013-12-19 | 2014-09-10 | 鄂德刚 | Low-rise super-long stroke intelligent control winding type pulling oil production system and working method |
| CN104728098A (en) * | 2013-12-19 | 2015-06-24 | 鄂德刚 | Multistage plunger super-long-stroke oil well pump |
| CN104033134B (en) * | 2013-12-19 | 2016-07-27 | 大庆北研石油设备制造有限公司 | A kind of short ultra-long-stroke Based Intelligent Control winch type pulling oil production system and method for work |
| CN104728098B (en) * | 2013-12-19 | 2016-08-17 | 鄂德刚 | A kind of Multi-stage plunger ultra-long-stroke oil well pump |
| CN103821704A (en) * | 2014-03-17 | 2014-05-28 | 铁岭一达石油机械制造有限公司 | Anti-corrosion sand-preventing wear-resistant oil well pump |
| CN110206494A (en) * | 2018-02-28 | 2019-09-06 | 中国石油天然气股份有限公司 | Cable-styled oil pumping unit matching process pipe string |
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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 |