CN202914046U - Plug-in screw pump system - Google Patents
Plug-in screw pump system Download PDFInfo
- Publication number
- CN202914046U CN202914046U CN 201220552816 CN201220552816U CN202914046U CN 202914046 U CN202914046 U CN 202914046U CN 201220552816 CN201220552816 CN 201220552816 CN 201220552816 U CN201220552816 U CN 201220552816U CN 202914046 U CN202914046 U CN 202914046U
- Authority
- CN
- China
- Prior art keywords
- screw pump
- outer working
- pump
- working tube
- seating nipple
- 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
Links
- 239000004576 sand Substances 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 210000002445 nipple Anatomy 0.000 claims description 25
- 238000005086 pumping Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses an insertion type screw pump system, which solves the problem that the construction cost is increased because the original screw pump needs to pull up and down an oil pipe when checking the pump; the anti-sand centralizing device comprises an outer working barrel, an oil pipe, a screw pump stator, a pump barrel, a screw pump limiting device, a screw pump rotor, a screw pump coupling, a screw pump rotor, a sand prevention centralizing barrel, a sand prevention centraliz. According to the screw pump system, an oil pipe does not need to be pulled down during operation, the pump is replaced by pulling down the sucker rod, the stationary tubular column operation of the screw pump well is realized, the construction process is simplified, and the operation cost is reduced.
Description
Technical field
The utility model relates to ground driving screw pump oil recovery field, is specifically related to screw pump and tubular column system.
Background technology
Rod-pumped well has been used insert pump and has been realized the fixed tubular column operation at present, has reduced construction cost.And conventional screw pump sump pump detection and workover still needs lower oil tube just can finish.In addition, the many Periphery Low Permeability Oilfields in oil field have the characteristics such as well depth, average production per well be low, have the problems such as rod and tube partial-wear in the screw pump use procedure, and pump detection period is shorter.So, how to realize the operation of screw bolt well fixed tubular column, reduce the upkeep operation amount, reduce operating cost, be the problem that needs solve.
Summary of the invention
The purpose of this utility model provides a kind of insertion type screw pump system, realizes the operation of screw bolt well fixed tubular column, simplifies working procedure, reduces operating cost.
The technical solution of the utility model is: a kind of insertion type screw pump system comprises outer working tube, interior seating nipple, screw pump rotor, screw pump stator and pump barrel, sand control righting cylinder, oil pipe and sucker rod; Described outer working tube adopts internal spline structure, and the upper end of outer working tube is connected with oil pipe by pipe collar, the shell of composition system after the two connects; In the inner chamber of shell, be connected with interior seating nipple, screw pump stopping means, screw pump stator and pump barrel, tubing nipple and sand control righting cylinder by pipe collar successively from top to bottom, wherein dispose screw pump rotor in screw pump stator and the pump barrel, sucker rod is passed at the center of sand control righting cylinder, the lower end connecting with pumping rod box cupling of sucker rod, the lower end of rod collar is fixedly connected with screw pump rotor; The structure of above-mentioned interior seating nipple is to be followed successively by from top to bottom elastic locking pawl structure, external splines structure and circumferential grooves structure, interior seating nipple inserts in the outer working tube, the two spline joint, elastic locking pawl are stuck on the lower port of outer working tube, the built-in O-ring seal of circumferential grooves.
The utlity model has following beneficial effect: the application's insertion type screw pump system, need not lower oil tube during operation, but change pump by actuating oil-pumping unit, realized the operation of screw bolt well fixed tubular column, simplified working procedure, reduced operating cost.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the upper semisection structural representation among Fig. 1.
Fig. 3 is the lower semisection structural representation among Fig. 1.
Fig. 4 is the structural representation of outer working tube.
Fig. 5 is the structural representation of interior seating nipple.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
By Fig. 1 in conjunction with Fig. 2, shown in Figure 3: a kind of insertion type screw pump system comprises outer working tube 1, interior seating nipple 2, screw pump rotor 5, screw pump stator and pump barrel 6, sand control righting cylinder 10, oil pipe 11 and sucker rod 9; By shown in Figure 4: described outer working tube 1 adopts internal spline structure 12, and the upper end of outer working tube 1 is connected with oil pipe 11 by pipe collar 3, the shell of composition system after the two connects; In the inner chamber of shell, be connected with interior seating nipple 2, screw pump stopping means 4, screw pump stator and pump barrel 6, tubing nipple 8 and sand control righting cylinder 10 by pipe collar successively from top to bottom, wherein dispose screw pump rotor 5 in screw pump stator and the pump barrel 6, sucker rod 9 is passed at the center of sand control righting cylinder 10, the lower end connecting with pumping rod box cupling 7 of sucker rod 9, the lower end of rod collar 7 is fixedly connected with screw pump rotor 5; By shown in Figure 5: the structure of above-mentioned interior seating nipple 2 is to be followed successively by from top to bottom elastic locking pawl structure 23, external splines structure 22 and circumferential grooves structure 21, interior seating nipple 2 inserts in the outer working tube 1, the two spline joint, elastic locking pawl 23 is stuck on the lower port of outer working tube 1, circumferential grooves 21 built-in O-ring seals.
The elastic locking pawl 23 of interior seating nipple 2 can be adjusted distinguish number or size as required, changes the size with deblocking power of setting of interior seating nipple 2.The O-ring seal of packing in some circumferential grooves 21 on interior seating nipple 2 walls can guarantee the sealing of system.Adopt spline joint between inside and outside seating nipple, have the function of anti-rotation.Because the screw pump stator that links to each other with interior seating nipple 2 and pump barrel 6 external diameters are less than oil pipe 11 internal diameters, so can be by actuating oil-pumping unit 9 inspection pumps.
When going into the well, outer working tube 1 G.I.H that links to each other with oil pipe 11, tubing nipple 8, screw pump stator and pump barrel 6, screw pump stopping means 4 and the seating nipple 2 of being connected connect successively, and sucker rod 9 penetrates in sand control righting cylinder 10 centre bores, rod collar 7 is installed, and is connected with screw pump rotor 5; Screw pump rotor 5 is passed tubing nipple 8 put into screw pump stator and pump barrel 6, simultaneously, sand control righting cylinder 10 and tubing nipple 8 are fixedly connected with by pipe collar, whole system is grouped together.By sucker rod 9 whole system G.I.H desired depth is realized lifting.During pump detection and workover, directly play sucker rod 9 and change pump.
Claims (1)
1. an insertion type screw pump system comprises outer working tube, interior seating nipple, screw pump rotor, screw pump stator and pump barrel, sand control righting cylinder, oil pipe and sucker rod; It is characterized in that: described outer working tube adopts internal spline structure, and the upper end of outer working tube is connected with oil pipe by pipe collar, the shell of composition system after the two connects; In the inner chamber of shell, be connected with interior seating nipple, screw pump stopping means, screw pump stator and pump barrel, tubing nipple and sand control righting cylinder by pipe collar successively from top to bottom, wherein dispose screw pump rotor in screw pump stator and the pump barrel, sucker rod is passed at the center of sand control righting cylinder, the lower end connecting with pumping rod box cupling of sucker rod, the lower end of rod collar is fixedly connected with screw pump rotor; The structure of above-mentioned interior seating nipple is to be followed successively by from top to bottom elastic locking pawl structure, external splines structure and circumferential grooves structure, interior seating nipple inserts in the outer working tube, the two spline joint, elastic locking pawl are stuck on the lower port of outer working tube, the built-in O-ring seal of circumferential grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220552816 CN202914046U (en) | 2012-10-26 | 2012-10-26 | Plug-in screw pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220552816 CN202914046U (en) | 2012-10-26 | 2012-10-26 | Plug-in screw pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914046U true CN202914046U (en) | 2013-05-01 |
Family
ID=48162367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220552816 Expired - Fee Related CN202914046U (en) | 2012-10-26 | 2012-10-26 | Plug-in screw pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914046U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653455A (en) * | 2013-11-19 | 2015-05-27 | 中国石油天然气股份有限公司 | Method for adjusting axial clearance between stator and rotor of screw pump |
| CN110242559A (en) * | 2019-07-21 | 2019-09-17 | 中石化石油工程技术服务有限公司 | A kind of subsurface progressive cavity and the construction method for passing through subsurface progressive cavity |
-
2012
- 2012-10-26 CN CN 201220552816 patent/CN202914046U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653455A (en) * | 2013-11-19 | 2015-05-27 | 中国石油天然气股份有限公司 | Method for adjusting axial clearance between stator and rotor of screw pump |
| CN104653455B (en) * | 2013-11-19 | 2016-09-07 | 中国石油天然气股份有限公司 | Method for adjusting axial clearance between stator and rotor of screw pump |
| CN110242559A (en) * | 2019-07-21 | 2019-09-17 | 中石化石油工程技术服务有限公司 | A kind of subsurface progressive cavity and the construction method for passing through subsurface progressive cavity |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20201026 |