CN204003389U - Multistage elastic packing three plunger horizontal well oil pumps - Google Patents
Multistage elastic packing three plunger horizontal well oil pumps Download PDFInfo
- Publication number
- CN204003389U CN204003389U CN201420379415.XU CN201420379415U CN204003389U CN 204003389 U CN204003389 U CN 204003389U CN 201420379415 U CN201420379415 U CN 201420379415U CN 204003389 U CN204003389 U CN 204003389U
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- plunger
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- traveling valve
- valve
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- 238000012856 packing Methods 0.000 title claims abstract description 11
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000000605 extraction Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000003129 oil well Substances 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 28
- 239000010779 crude oil Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
A kind of multistage elastic packing three plunger horizontal well oil pumps, comprise upper connection, pump barrel, plunger center-pole, plunger, center-pole centralizer, pin oil drain, standing valve assembly and joint type ball seat, it is characterized in that plunger is made as two-stage type or three grades of formulas or level Four formula hollow plunger, be provided with traveling valve arc valve seat in the lower end surface of every grade of plunger, center at every grade of plunger is provided with plunger center-pole separately, be provided with center-pole centralizer in the upper end of every grade of plunger center-pole, lower end is provided with traveling valve arc spool, traveling valve arc spool is connected with centralizer screw thread, traveling valve arc spool and traveling valve arc valve seat are sealed and matched, form traveling valve and open by force strong locking mechanism, traveling valve arc spool drives the linkage from top to bottom in pump barrel of every grade of plunger under the effect of pumping of plunger center-pole, form plunger and enter oil extraction assembly.The utility model has adopted plunger to enter oil extraction assembly and strong locking mechanism left by force by traveling valve, has ensured sealing effect, has significantly improved the working life of pump efficiency and pump.
Description
Affiliated technical field
The utility model relates to a kind of multistage elastic packing three plunger horizontal well oil pumps, for the oil recovery of high angle hole, horizontal well.
Background technique
At present, rod pumping pump (being called for short " oil well pump ") still occupy ascendancy in all oil production methods.It is estimated, China's oil industry is using sucker rod pumping pump sump more than 150,000 mouthfuls, and in global range, sucker rod pumping pump sump is hundreds of thousands mouth.Most domestic oil field has entered development late stage, be faced with the impact of the factors such as the media environment of sand production in oil, high moisture, polymer injection exploitation, hot extracting thick oil, deep-etching and hole condition be poor, the faults such as the wearing and tearing, leakage, burn into sand card, fouling, distortion of oil well pump are caused, make oil well pump be excused from a college course the phase shorter and shorter, had a strong impact on the raising of oil field development overall economic efficiency.
To the up-to-date variation of oil well pump application operating mode and at present pump product the adaptive understanding of these variations is directly connected to the progress of whole oil recovery production work.Horizontal well technology has become the one of old liberated area thick oil pay top Tapping Residual Oil and the thin poor layer exploitation of Periphery Oilfield and has effectively exploited means, and a kind of parallel formula plunger horizontal well oil pump becomes horizontal well, directional well, the main extract instrument in high angle hole field.
Summary of the invention
The purpose of this utility model is to provide a kind of multistage elastic packing three plunger horizontal well oil pumps, solves the problem that conventional levels well oil well pump wastage is large, pump efficiency is low, working life is short.Have and be applicable to high angle hole, horizontal well, pump detection period is long, pump efficiency is high feature, significant for the economical and efficient exploitation that realizes large gradient, horizontal well, high yield liquid measure oil well.
Technological scheme of the present invention is that following mode realizes:
The utility model comprises upper connection, pump barrel, plunger center-pole, plunger, center-pole centralizer, pin oil drain, standing valve assembly and joint type ball seat, it is characterized in that plunger is made as two-stage type or three grades of formulas or level Four formula hollow plunger, be provided with traveling valve arc valve seat in the lower end surface of every grade of plunger, center at every grade of plunger is provided with plunger center-pole separately, be provided with center-pole centralizer in the upper end of every grade of plunger center-pole, lower end is provided with traveling valve arc spool, traveling valve arc spool is connected with centralizer screw thread, traveling valve arc spool and traveling valve arc valve seat are sealed and matched, form traveling valve and open by force strong locking mechanism, traveling valve arc spool drives the linkage from top to bottom in pump barrel of every grade of plunger under the effect of pumping of plunger center-pole, form plunger and enter oil extraction assembly.
Upper departmental level plungers length is shorter than the length of bottom plungers at different levels, is made as one-level or secondary oil well pump sealed precision coordinates between upper departmental level plunger and pump barrel, is made as triplex sealed precision and coordinates between the plungers at different levels of one-level plunger bottom and pump barrel.
Standing valve assembly comprises ball sealer, sealing ball cover, Returnning spring and joint type ball seat, joint type ball seat is threaded with pump barrel lower end by tubing coupling, valve ball cover is connected with the box thread on joint type ball seat top, between ball seat and valve ball cover, is provided with Returnning spring.
Center-pole centralizer is made as cylindrical, and the large lower diameter of upper diameter is little, and upper and lower is provided with box thread or male thread separately, and periphery is provided with inclined or straight logical oil groove.
Traveling valve arc spool top is made as cylindrical, and bottom is made as arc, and arc is downward, and top is provided with male thread or box thread.
The major advantage the utlity model has:
1. traveling valve leaves by force strong locking mechanism and has solved the problem that horizontal oil-well pump traveling valve can not reset or reset not in time or pump gas lock is found time, and has laid solid foundation for horizontal well machinery recovers the oil.
2, plunger enters oil extraction assembly, is full of crude oil in level lower seal gap, forms elastic packing, prevent pump card, ensured sealing effect, open by force at traveling valve at different levels under the effect of strong locking mechanism between oil-feed step by step, separate oil pumping, is independent of each other, and has improved pump efficiency.
3, upper departmental level plungers length is short, is difficult for card, and sealed precision is high, has prevented that the crude oil in tubing string from missing in pump barrel, has improved the suction coefficient of oil well pump.
4. this utility model is equipped with pin oil drain, throws bar and touch off pin when inspection pump, can realize pipe column oil drainage, avoids spray to carry tubing string, ensures cleaner production.
Brief description of the drawings
Fig. 1-down stroke structural principle schematic diagram of the present utility model.
The schematic cross-section of E-E in Fig. 2-Fig. 1.
In figure 1, upper connection, 2, pump barrel, 3, plunger center-pole, 4, plunger, 5, plunger centralizer, 6, pin oil drain, 7, standing valve assembly, 8, joint type ball seat.
Embodiment
For further disclosing the technical solution of the utility model, below in conjunction with accompanying drawing, structural principle of the present utility model and working principle are described in further detail.
The utility model comprises upper connection 1, pump barrel 2, plunger center-pole 3, plunger 4, center-pole centralizer 5, pin oil drain 6, standing valve assembly 7 and joint type ball seat 8, it is characterized in that plunger is made as two-stage type or three grades of formulas or level Four formula hollow plunger, be provided with traveling valve arc valve seat in the lower end surface of every grade of plunger, center at every grade of plunger is provided with plunger center-pole separately, be provided with center-pole centralizer in the upper end of every grade of plunger center-pole, lower end is provided with traveling valve arc spool, traveling valve arc spool is connected with centralizer screw thread, traveling valve arc spool and traveling valve arc valve seat are sealed and matched, form traveling valve and open by force strong locking mechanism, traveling valve arc spool drives the linkage from top to bottom in pump barrel of every grade of plunger under the effect of pumping of plunger center-pole, form plunger and enter oil extraction assembly.
In the time of application the utility model, upper connection 1 is connected with oil pipe, and joint type ball seat 8 is connected with tail pipe; Plunger center-pole 3 is connected with sucker rod roofbolt, drive plunger center-pole to pump at the effect lower sucker rod roofbolt of pumping unit, plunger center-pole drives plungers 4 at different levels to pump simultaneously, and traveling valve arc spool and traveling valve arc ball seat open and close simultaneously.In the time that plunger center-pole is descending, the traveling valve of plungers at different levels is opened simultaneously, and the crude oil in pump barrel enters plungers at different levels step by step through subordinate's plunger, after plunger cavities at different levels are full of, enters oil pipe column.After bottom dead center start uply when plunger goes downwards to, the traveling valve of plungers at different levels cuts out simultaneously, and plunger center-pole drives plungers at different levels simultaneously up, the crude oil that enters tubing string is risen to well head and enter gathering line.Owing to having adopted upper departmental level plungers length to be shorter than the length of bottom plungers at different levels, between upper departmental level plunger and pump barrel, be made as one-level or secondary oil well pump sealed precision coordinates, between the plungers at different levels of one-level plunger bottom and pump barrel, be made as the structure that triplex sealed precision coordinates, strong locking mechanism opened by force by traveling valve and plunger enters oil extraction interlock assembly, large, the easy holddown of solution conventional levels well oil well pump wastage, the problem that pump efficiency is low, working life is short.Have and be applicable to high angle hole, horizontal well, pump detection period is long, pump efficiency is high feature, significant for the crude oil high-efficiency mining that realizes large gradient, horizontal well, high yield liquid measure oil well.
Claims (5)
1. multistage elastic packing three plunger horizontal well oil pumps, comprise upper connection, pump barrel, plunger center-pole, plunger, center-pole centralizer, pin oil drain, standing valve assembly and joint type ball seat, it is characterized in that plunger is made as two-stage type or three grades of formulas or level Four formula hollow plunger, be provided with traveling valve arc valve seat in the lower end surface of every grade of plunger, center at every grade of plunger is provided with plunger center-pole separately, be provided with center-pole centralizer in the upper end of every grade of plunger center-pole, lower end is provided with traveling valve arc spool, traveling valve arc spool is connected with centralizer screw thread, traveling valve arc spool and traveling valve arc valve seat are sealed and matched, form traveling valve and open by force strong locking mechanism, traveling valve arc spool drives the linkage from top to bottom in pump barrel of every grade of plunger under the effect of pumping of plunger center-pole, form plunger and enter oil extraction assembly.
2. multistage elastic packing three plunger horizontal well oil pumps according to claim 1, it is characterized in that: upper departmental level plungers length is shorter than the length of bottom plungers at different levels, between upper departmental level plunger and pump barrel, be made as one-level or secondary oil well pump sealed precision coordinates, between the plungers at different levels of one-level plunger bottom and pump barrel, be made as triplex sealed precision and coordinate.
3. multistage elastic packing three plunger horizontal well oil pumps according to claim 1, it is characterized in that: standing valve assembly comprises ball sealer, sealing ball cover, Returnning spring and joint type ball seat, joint type ball seat is threaded with pump barrel lower end by tubing coupling, valve ball cover is connected with the box thread on joint type ball seat top, between ball seat and valve ball cover, is provided with Returnning spring.
4. multistage elastic packing three plunger horizontal well oil pumps according to claim 1, it is characterized in that: center-pole centralizer is made as cylindrical, the large lower diameter of upper diameter is little, and upper and lower is provided with box thread or male thread separately, and periphery is provided with inclined or straight logical oil groove.
5. multistage elastic packing three plunger horizontal well oil pumps according to claim 1, is characterized in that: traveling valve arc spool top is made as cylindrical, and bottom is made as arc, and arc is downward, and top is provided with male thread or box thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420379415.XU CN204003389U (en) | 2014-07-10 | 2014-07-10 | Multistage elastic packing three plunger horizontal well oil pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420379415.XU CN204003389U (en) | 2014-07-10 | 2014-07-10 | Multistage elastic packing three plunger horizontal well oil pumps |
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| Publication Number | Publication Date |
|---|---|
| CN204003389U true CN204003389U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420379415.XU Expired - Lifetime CN204003389U (en) | 2014-07-10 | 2014-07-10 | Multistage elastic packing three plunger horizontal well oil pumps |
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| CN (1) | CN204003389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088779A (en) * | 2014-07-10 | 2014-10-08 | 张国萍 | Efficient oil well pump for horizontal well |
-
2014
- 2014-07-10 CN CN201420379415.XU patent/CN204003389U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088779A (en) * | 2014-07-10 | 2014-10-08 | 张国萍 | Efficient oil well pump for horizontal well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |