CN203701949U - Underground power device for overhaul of horizontal oil well - Google Patents

Underground power device for overhaul of horizontal oil well Download PDF

Info

Publication number
CN203701949U
CN203701949U CN201420038449.2U CN201420038449U CN203701949U CN 203701949 U CN203701949 U CN 203701949U CN 201420038449 U CN201420038449 U CN 201420038449U CN 203701949 U CN203701949 U CN 203701949U
Authority
CN
China
Prior art keywords
assembly
overhaul
shaft
lost
drop
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
Application number
CN201420038449.2U
Other languages
Chinese (zh)
Inventor
张勇
王剑杰
赵志辉
孙军
马涛
郑晓旭
李韫丞
段文亮
王继飞
刘国震
杨芬
徐成均
张洪志
陈德民
罗惠玉
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.)
Liaohe Petroleum Exploration Bureau
Original Assignee
Liaohe Petroleum Exploration Bureau
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
Application filed by Liaohe Petroleum Exploration Bureau filed Critical Liaohe Petroleum Exploration Bureau
Priority to CN201420038449.2U priority Critical patent/CN203701949U/en
Application granted granted Critical
Publication of CN203701949U publication Critical patent/CN203701949U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to the technical field of the overhaul of horizontal oil wells, in particular to an underground power device for the overhaul of a horizontal oil well. According to the underground power device for the overhaul of the horizontal oil well, a bypass valve assembly, an anti-drop assembly, a motor assembly, an adjustable cardan shaft assembly and a transmission shaft assembly are connected in sequence, the bypass valve assembly is composed of a valve body, a valve element, a valve bush, a spring and an O-shaped seal ring, the anti-drop assembly is composed of an outer sleeve, an anti-drop bolt and an anti-drop nut, the anti-drop bolt is connected with a rotor of the motor assembly, the anti-drop nut is limited by an inner hole of the outer sleeve, and the anti-drop nut is connected to the anti-drop bolt. By the adoption of the underground power device for the overhaul of the horizontal oil well, rotating power can be directly provided for a drilling tool connected to the lowest end of a whole drill column, the horizontal well overhauling efficiency is improved, the horizontal well overhauling time is shortened, the whole device is anchored on the wall of an oil well sleeve through a hydraulic anchor, a fishing drill rod can be prevented from rotating, abrasion of the drilling tool and the sleeve is reduced, safety during the overhaul is guaranteed, and drilling tool jamming accidents are prevented.

Description

A kind of oil well horizontal well overhaul well dynamic device
Technical field:
The utility model relates to a kind of oil well horizontal well heavy repair task technical field, particularly a kind of oil well horizontal well overhaul well dynamic device.
Background technology:
At present, the overhaul of oil well horizontal well relies on rotating disk power, implements overhaul by transformation downhole tool, its subject matter is inefficiency, account for long, drilling tool of well cycle and casing wear serious, restricted the development of horizontal well overhaul.Therefore, the research of horizontal well overhaul downhole power systems is very necessary with application.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of oil well horizontal well overhaul well dynamic device, this device has been realized the drilling tool that can connect bottom to whole drill string rotary power is directly provided, the improve the standard efficiency of well overhaul, shorten the horizontal well overhaul duration, whole device is anchored on oil well casing wall by hydraulic anchor, can prevent from salvaging drilling rod rotation, reduces drilling tool and casing wear, guarantee the safety in overhaul work progress, prevent the generation of lock of tool drilling.Overcome existing level well overhaul inefficiency, accounted for well cycle length and drilling tool and the serious deficiency of casing wear.
Technical solution adopted in the utility model is: a kind of oil well horizontal well overhaul well dynamic device, is made up of by-pass valve assembly, anti-lost assembly, motor assembly, adjustable cardan shaft assembly and driving-shaft assembly, by-pass valve assembly, anti-lost assembly, motor assembly, adjustable cardan shaft assembly, driving-shaft assembly connects in turn, by-pass valve assembly is by valve body, spool, valve pocket, spring and O RunddichtringO composition, anti-lost assembly is by overcoat, anti-lost bolt and anti-lost nut composition, the rotor of anti-lost bolt connecting motor assembly, anti-lost nut is spacing by the endoporus of overcoat, anti-lost nut is connected on anti-lost bolt, motor assembly is multistage positive displacement motor, motor assembly is made up of stator and rotor, adjustable cardan shaft assembly is made up of universal shaft housing and universal drive shaft, the upper and lower side of universal shaft housing is connected with stator and the transmission shaft shell of motor assembly respectively, universal drive shaft upper and lower side respectively with the rotor of motor assembly, power transmission shaft is connected, driving-shaft assembly comprises transmission shaft shell and power transmission shaft.
The beneficial effects of the utility model are: the drilling tool that the utility model can connect bottom to whole drill string directly provides rotary power, the improve the standard efficiency of well overhaul, shorten the horizontal well overhaul duration, whole device is anchored on oil well casing wall by hydraulic anchor, can prevent from salvaging drilling rod rotation, reduce drilling tool and casing wear, guarantee the safety in overhaul work progress, prevent the generation of lock of tool drilling.
Accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
The specific embodiment:
As shown in Figure 1, a kind of oil well horizontal well overhaul well dynamic device, is made up of by-pass valve assembly 1, anti-lost assembly 2, motor assembly 3, adjustable cardan shaft assembly 4 and driving-shaft assembly 5, by-pass valve assembly 1, anti-lost assembly 2, motor assembly 3, adjustable cardan shaft assembly 4, driving-shaft assembly 5 connects in turn, by-pass valve assembly 1 is by valve body, spool, valve pocket, spring and O RunddichtringO composition, its effect is: in the time of drilling, link up drill string domestic and foreign work liquid passage, when without circulation time, spring makes spool in home position, now by-pass duct is opened, in the time that mud displacement reaches certain value, hydraulic coupling overcomes spring force, spool is moved, now by-pass prot sealing, slurry flows feed liquor motor, if termination of pumping, spool is under the effect of spring force, origin-location is got back to in spool top, by-pass duct is unlocked again, make to be communicated with the working solution in annular space in drill string.Anti-lost assembly 2 is by overcoat, anti-lost bolt and anti-lost nut composition, the rotor of anti-lost bolt connecting motor assembly 3, anti-lost nut is spacing by the endoporus of overcoat, anti-lost nut is connected on anti-lost bolt, motor assembly 3 is multistage positive displacement motor, motor assembly 3 is made up of stator and rotor, adjustable cardan shaft assembly 4 is made up of universal shaft housing and universal drive shaft, the upper and lower side of universal shaft housing is connected with stator and the transmission shaft shell of motor assembly 3 respectively, universal drive shaft upper and lower side respectively with the rotor of motor assembly 3, power transmission shaft is connected, driving-shaft assembly 5 comprises transmission shaft shell and power transmission shaft.
The energy of the highly pressurised liquid that the utility model injects ground by motor assembly 3 is transformed into the mechanical energy of drilling tool rotation.When ground highly pressurised liquid enters by drill string after this power set endoporus, by-pass valve assembly 1 is closed, highly pressurised liquid enters the rotor of motor assembly 3 and each annular seal space that stator forms by the duct in anti-lost assembly 2, the pressure differential drive rotor of highly pressurised liquid in each chamber rolls along the helical duct of stator, because rotor and stator all adopt transport screw line, thereby rotor clockwise rotates around axis stator, and rotate counterclockwise with self axis the universal drive shaft driving in adjustable cardan shaft assembly 4 and rotate, the rotation of the power transmission shaft in the driving-shaft assembly 5 with being dynamically connected of universal drive shaft, the milling tool rotation that power transmission shaft drives lower end to connect.
Be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model is not limited to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as meet, all within protection domain of the present utility model.

Claims (1)

1. an oil well horizontal well overhaul well dynamic device, is made up of by-pass valve assembly (1), anti-lost assembly (2), motor assembly (3), adjustable cardan shaft assembly (4) and driving-shaft assembly (5), it is characterized in that: by-pass valve assembly (1), anti-lost assembly (2), motor assembly (3), adjustable cardan shaft assembly (4), driving-shaft assembly (5) connects in turn, by-pass valve assembly (1) is by valve body, spool, valve pocket, spring and O RunddichtringO composition, anti-lost assembly (2) is by overcoat, anti-lost bolt and anti-lost nut composition, the rotor of anti-lost bolt connecting motor assembly (3), anti-lost nut is spacing by the endoporus of overcoat, anti-lost nut is connected on anti-lost bolt, motor assembly (3) is multistage positive displacement motor, motor assembly (3) is made up of stator and rotor, adjustable cardan shaft assembly (4) is made up of universal shaft housing and universal drive shaft, the upper and lower side of universal shaft housing is connected with stator and the transmission shaft shell of motor assembly (3) respectively, universal drive shaft upper and lower side respectively with the rotor of motor assembly (3), power transmission shaft is connected, driving-shaft assembly (5) comprises transmission shaft shell and power transmission shaft.
CN201420038449.2U 2014-01-20 2014-01-20 Underground power device for overhaul of horizontal oil well Expired - Fee Related CN203701949U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420038449.2U CN203701949U (en) 2014-01-20 2014-01-20 Underground power device for overhaul of horizontal oil well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420038449.2U CN203701949U (en) 2014-01-20 2014-01-20 Underground power device for overhaul of horizontal oil well

Publications (1)

Publication Number Publication Date
CN203701949U true CN203701949U (en) 2014-07-09

Family

ID=51052405

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420038449.2U Expired - Fee Related CN203701949U (en) 2014-01-20 2014-01-20 Underground power device for overhaul of horizontal oil well

Country Status (1)

Country Link
CN (1) CN203701949U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107620579A (en) * 2017-08-31 2018-01-23 中国石油天然气股份有限公司 Workover tool under Horizontal Well

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107620579A (en) * 2017-08-31 2018-01-23 中国石油天然气股份有限公司 Workover tool under Horizontal Well
CN107620579B (en) * 2017-08-31 2020-06-09 中国石油天然气股份有限公司 Downhole workover tool for horizontal well

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140709

Termination date: 20150120

EXPY Termination of patent right or utility model