CN2167218Y - Structure for combining parts of well screw pump for oil field - Google Patents
Structure for combining parts of well screw pump for oil field Download PDFInfo
- Publication number
- CN2167218Y CN2167218Y CN 92234138 CN92234138U CN2167218Y CN 2167218 Y CN2167218 Y CN 2167218Y CN 92234138 CN92234138 CN 92234138 CN 92234138 U CN92234138 U CN 92234138U CN 2167218 Y CN2167218 Y CN 2167218Y
- Authority
- CN
- China
- Prior art keywords
- stator
- stators
- screw pump
- sub
- composite structure
- 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.)
- Ceased
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Abstract
The utility model discloses a stator section composite structure. The stator section composite structure is composed of two end stators, the sub-stators of a plurality of middle stators, and fixedly connecting hoops. The numbers of the sub-stators are confirmed by the total length of the whole stator. Due to the fact that the sub-stators are shorter, the stator section composite structure is convenient to be processed and formed, the quality of stators is ensured, and the service life of the stators is increased. The utility model is suitable for the oil exploitation of a medium-deep oil well, a deep oil well, and a screw pump whose daily discharge capacity is larger than 20 m< 3 >/d.
Description
The utility model relates to a kind of stator-sectional composite structure of oil subsurface progressive cavity.This stator structure is particularly suitable for pump and hangs greater than more than the 1500m, and day discharge capacity surpasses 20m
3The screw pump of the big discharge capacity deep-well oil-extraction of/d.
Screw pump word that uses in the petroleum production at present is single overall structure.Its shortcoming be when stator length more than three meters the time, be easy to occur type bending in the stator; Stator metal shell inwall blast inequality, binder is irregular, and the kiss-coating time is long, and temperature variation is big, quality problems such as adhesive effect difference.Cause stator short working life, coming unstuck appears in party, broken glue fault.The purpose of this utility model is to provide a kind of can overcome above-mentioned fault, steady quality, and surpass six months working life, the screw pump stator of dark oil well and deep-well oil-extraction in being widely used in.
The stator that the utility model provides is that the overlength stator is divided into the experimental process stator, connects into the one-piece stator of Len req again with the box cupling that is connected.Every stator length is no more than two meters, and the quantity of sub-stator is determined by the total length of whole stator.Because sub-stator is short, be convenient to overcome type bending in the stator, improve stator kiss-coating quality, increase stator working life, and then eliminate that stator comes unstuck, broken glue phenomenon.
The segmentation composite structure is by end stator (1), intermediate stator (2)
The box cupling (3) that is connected is formed whole stator.
The one-piece stator forming process is: at first add the brigade stator.Be worked into the kiss-coating moulding from housing and be processed into sub-stator finished parts separately.Then, 4. go up sub-stator being connected into whole stator at special tooling.Utilize the technology core rod 5. to control merging precision, guarantee that the type spiral is synchronous in the stator.With the box cupling that is connected every antithetical phrase stator is fixed together again.
Claims (1)
1, a kind of stator-sectional composite structure of oil subsurface progressive cavity is by end stator (1), intermediate stator (2), the box cupling that is connected (3), forms whole stator, it is characterized in that whole stator is by whole stator of the affixed one-tenth of sectionalized stator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 92234138 CN2167218Y (en) | 1992-10-04 | 1992-10-04 | Structure for combining parts of well screw pump for oil field |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 92234138 CN2167218Y (en) | 1992-10-04 | 1992-10-04 | Structure for combining parts of well screw pump for oil field |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2167218Y true CN2167218Y (en) | 1994-06-01 |
Family
ID=33776289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 92234138 Ceased CN2167218Y (en) | 1992-10-04 | 1992-10-04 | Structure for combining parts of well screw pump for oil field |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2167218Y (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100507274C (en) * | 2006-11-03 | 2009-07-01 | 江苏大学 | Electric motor screw pump |
CN102927005A (en) * | 2012-11-09 | 2013-02-13 | 无锡世联丰禾石化装备科技有限公司 | Stator of screw rod pump |
CN106014199A (en) * | 2016-05-18 | 2016-10-12 | 燕山大学 | Sectional type uniform-wall-thickness screw drilling tool stator |
CN109268257A (en) * | 2014-11-14 | 2019-01-25 | 兵神装备株式会社 | Fluid delivery system |
CN109843757A (en) * | 2016-10-06 | 2019-06-04 | 莱特拉姆有限责任公司 | Hygienic conveyor frame component |
-
1992
- 1992-10-04 CN CN 92234138 patent/CN2167218Y/en not_active Ceased
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100507274C (en) * | 2006-11-03 | 2009-07-01 | 江苏大学 | Electric motor screw pump |
CN102927005A (en) * | 2012-11-09 | 2013-02-13 | 无锡世联丰禾石化装备科技有限公司 | Stator of screw rod pump |
CN109268257A (en) * | 2014-11-14 | 2019-01-25 | 兵神装备株式会社 | Fluid delivery system |
CN106014199A (en) * | 2016-05-18 | 2016-10-12 | 燕山大学 | Sectional type uniform-wall-thickness screw drilling tool stator |
CN109843757A (en) * | 2016-10-06 | 2019-06-04 | 莱特拉姆有限责任公司 | Hygienic conveyor frame component |
CN109843757B (en) * | 2016-10-06 | 2021-08-17 | 莱特拉姆有限责任公司 | Frame assembly of sanitary conveyor |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
RN01 | Renewal of patent term | ||
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term | ||
C35 | Partial or whole invalidation of patent or utility model | ||
IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20010518 Decision number of declaring invalidation: 3274 |