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 PDF

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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
Application number
CN 92234138
Other languages
Chinese (zh)
Inventor
张品瑞
高宏
邢国斌
杨永明
白云明
孙富山
许亚春
李瑞昌
佟玉清
邵东
沈志强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinyang Machinery Manufacturing Co Shenyang
Original Assignee
Xinyang Machinery Manufacturing Co Shenyang
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33776289&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN2167218(Y) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Xinyang Machinery Manufacturing Co Shenyang filed Critical Xinyang Machinery Manufacturing Co Shenyang
Priority to CN 92234138 priority Critical patent/CN2167218Y/en
Application granted granted Critical
Publication of CN2167218Y publication Critical patent/CN2167218Y/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Structure for combining parts of well screw pump for oil field
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.
CN 92234138 1992-10-04 1992-10-04 Structure for combining parts of well screw pump for oil field Ceased CN2167218Y (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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