CN106121577A - Well cable hanger - Google Patents
Well cable hanger Download PDFInfo
- Publication number
- CN106121577A CN106121577A CN201610696779.4A CN201610696779A CN106121577A CN 106121577 A CN106121577 A CN 106121577A CN 201610696779 A CN201610696779 A CN 201610696779A CN 106121577 A CN106121577 A CN 106121577A
- Authority
- CN
- China
- Prior art keywords
- slips
- cable
- main body
- fixation kit
- inner chamber
- 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.)
- Pending
Links
- 241000239290 Araneae Species 0.000 claims abstract description 21
- 239000000725 suspension Substances 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 238000007789 sealing Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/0407—Casing heads; Suspending casings or tubings in well heads with a suspended electrical cable
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/028—Electrical or electro-magnetic connections
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Flexible Shafts (AREA)
Abstract
A kind of well cable hanger, including main body, the inner chamber that described main body is arranged is provided with fixation kit, described fixation kit includes slip spider and the slips being arranged on slip spider, the inner chamber of described main body is provided with the fastening push rod promoting fixation kit to move axially, the cross section of described slips is C-shaped, and described slips axially offers a plurality of gap.Well cable hanger promotes slips or slip spider by fastening push rod, slips wedge surface by contact with each other middle with slip spider, makes slips produce radially deformation, the cable in slips is encircled locking, it is achieved the suspension of cable is fixed.Slips is C-shaped, and the opening of formation adds the deflection of slips, and arranges the gap of increase deformation on slips further, further increase the deformation degree that slips can be generated by, enable slips to hold cable greatly tightly, improve coupling mechanism force, strengthen and hang fixing fastness.
Description
Technical field
The present invention relates to petroleum gas technical field, specifically, be a kind of for oil gas field well logging and sidetracking operation
The hanger of land cable used by.
Background technology
Along with requiring more and more higher for oilfield operation in industry, operation fine degree is more and more higher, Oil/gas Well
It is more and more frequent that wireline logging and sidetracking operation are applied.Must be by firm for cable one end in wireline logging, sidetracking operation
Be fixed on reel, cause the accident in preventing its well head that comes off in operation process.And it is close during wired signal transmission
Envelope and the reliability connected need the guarantee of very high degree.Therefore there is the cable of good connection, suspension behavior and sealing property
Hanger can have greatly help to wireline logging operation.
Existing instrument is firm not in cable fixed form, dropping situations easily occurs in operation.Preventing of Plug pin patch bay
Turn to design mostly to be and leave a small column in the lower connecting end surface circumference side of shell, Plug pin patch bay designs a circular hole, therewith
Coordinate and realize anti-rotation.This kind of design had both increased task difficulty and had also reduced anti-rotation ability.
Summary of the invention
The present invention is directed to the firm not problem of existing hanging tool fixed form, it is proposed that a kind of firmly performance more preferably,
Again can the well cable hanger of anti-rotation.
The well cable hanger of the present invention, including main body, is provided with fixation kit in the inner chamber that described main body is arranged, institute
State fixation kit and include slip spider and the slips being arranged on slip spider, the inner chamber of described main body is provided with the fixing group of promotion
The fastening push rod that part moves axially, the cross section of described slips is C-shaped, and described slips axially offers a plurality of gap.
Preferably, described fixation kit is coaxial and is symmetrically arranged with two, contacts with each other, and set back-to-back between slips
Put.
Preferably, between described fastening push rod and fixation kit, thrust retainer ring is installed.
Preferably, the inner chamber of described main body is provided with cable connecting seat, the projection position that described cable connecting seat is arranged
In the keyway that interior cavity wall is arranged.
Preferably, the inner chamber between described cable connecting seat and slips is annular seal space, and described main body is provided with and seals
The orifice that chamber is connected, is provided with closure plug in described orifice.
Preferably, described cable connecting seat connects has aviation plug, described aviation plug to be positioned at what body end connected
In endoporus set by lower contact, and matching with endoporus, the inwall of described endoporus is provided with side grain.
The invention has the beneficial effects as follows: well cable hanger promotes slips or slip spider by fastening push rod, slips with
By the wedge surface contacted with each other in the middle of slip spider, make slips produce radially deformation, the cable in slips is encircled locking, it is achieved electricity
The suspension of cable is fixed.Slips is C-shaped, and the opening of formation adds the deflection of slips, and arranges increase on slips further
The gap of deformation, further increases the deformation degree that slips can be generated by, and enables slips to hold cable greatly tightly, carries
High coupling mechanism force, strengthens and hangs fixing fastness.
Slips and slip spider arrange two groups, arrange formation bi-directional slip back-to-back, it is achieved the bidirectionally anchoring to cable, it is achieved
Bidirectional suspension, and increase the firm effect that suspension is fixing further.
Fastening push rod pushes slips or slip spider by thrust retainer ring, makes slips or slip spider stress more direct, produces
Raw deformation effects is more preferable, strengthens locking effect.
Inner chamber connects and is coordinated by projection and keyway between the cable connecting seat of cable and theme, bonded prevent cable
Connect seat to rotate in the lumen, it is to avoid cable reverses and damages, it is ensured that cable uses safety.
Inner chamber arranges annular seal space, after slips locking, cable can be made real with the junction of cable connecting seat to filling stop-leak compound
Existing high pressure sealing, the reliability sealing during meeting wired signal transmission and connecting.
It is spacing that the side grain that lower contact endoporus is arranged carries out circumference to aviation plug, prevents aviation plug from rotating, it is to avoid electricity
Cable connects seat and aviation plug generation relative torsion, causes the connection cable between cable connecting seat and aviation plug to twist
It is wound around.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of well cable hanger；
Accompanying drawing 2 is the structural representation of slips；
Accompanying drawing 3 is the structural representation of lower contact endoporus.
Detailed description of the invention
In order to be able to further appreciate that the structure of the present invention, feature and other purpose, detailed in conjunction with appended preferred embodiment
Being described as follows, illustrated preferred embodiment is merely to illustrate technical scheme, and the non-limiting present invention.
The detailed description of the invention of the present invention is as follows:
As shown in Figures 1 to 3, this well cable hanger, including main body 1, the inner chamber that main body 1 is arranged is provided with fixing group
Part.Fixation kit includes slip spider 2 and the slips 3 being arranged on slip spider 2, is provided with promotion fixing in the inner chamber of main body 1
The fastening push rod 4 that assembly moves axially.
Slips 3 one side opening, makes cross section C-shaped, and slips 3 axially offers a plurality of gap 12.
Cable, through fastening push rod 4 and slips 3, is sent in the inner chamber of hanger body 1.Fastening push rod 4 promotes fixing group
One in part, slips 3 and slip spider 2 spacing by inner chamber, and another is then pushed by fastening push rod 4, makes slips 3 and slip spider 2
Move towards.The wedge surface that the wedge surface arranged by slips 3 outer wall and slip spider 2 inwall are arranged mutually is slidably matched, and slip spider 3 carries
Dynamic slips 2 produces radial deformation, and in making slips 2, latus rectum constantly diminishes, and is encircled by the cable in slips 3, completes the locking of cable.
Fastening push rod 4 is threaded connection with the inwall of main body 1 inner chamber, screws fastening push rod 4, can make fastening push rod 4
Inner to medial movement, push fixation kit.
After cable locking, being fixed on wellhead assembly by hanger, the cable being positioned in inner chamber 1 is connected by attachment means
Well external equipment, cable other end feeding down-hole, cable fixed by hanger, it is achieved cable suspension in well.
For the ease of being connected with wellhead assembly by hanger, attaching nut 10 is installed in main body 1 end.Suit gear in main body 1
Circle 11, attaching nut 10 is positioned on back-up ring 11, and back-up ring 11 is blocked by the step that main body 1 is arranged, and the flange that back-up ring 11 is arranged will even
Connected nut 10 blocks, and by screwing attaching nut 10, main body 1 is tightened on wellhead assembly.For the ease of turn attaching nut
10, attaching nut 10 uses nonyl aerofoil profile.
The shape of slips 3C shape, and the gap 12 offered, add the elastic deformation scope of slips 3, makes slips 3 by footpath
Xiang Lihou, it is possible to be compressed into less size, thus strengthen slips 3 and be applied to the enclasping force of cable, improve locking effect.
In order to further enhance suspension locking effect, fixation kit is coaxial and is symmetrically arranged with two, between slips 3 mutually
Contact, and arrange back-to-back.One end of two slips 3 largest outside diameter contacts with each other, under the promotion of fastening push rod 4, and two slips
Seat 3 is close to each other, and slip spider 3 drives slips 2 to produce radial deformation, and in making slips 2, latus rectum constantly diminishes, and finally makes two slips
Cable is encircled locking from both direction by 2 simultaneously.
In order to improve promotion effect, between fastening push rod 4 and fixation kit, thrust retainer ring 5 is installed.Fastening push rod 4 leads to
Crossing thrust retainer ring 5 and push slips 3 or the slip spider 2 of fixation kit, make push effect power more concentrate, slips 3 produces deformation
Effect is more preferable, strengthens locking effect.
In order to make cable connect well external equipment, being provided with cable connecting seat 6 in the inner chamber of main body 1, cable connecting seat 6 is arranged
Projection be positioned at cavity wall arrange keyway in, cable be connected to cable connecting seat 6 arrange contact pin 13 on.
Owing to the inwall of main body 1 inner chamber is cylindric, for coordinating fixing in the inwall of inner chamber, cable connecting seat 6 outer rim is also
For circle, cable connecting seat 6 and the inwall of inner chamber are bonded by projection and keyway, prevent cable connecting seat 6 from using
Journey rotates in the lumen, it is to avoid the cable being connected to cable connecting seat 6 twists, prevent from thus resulting in cable cracking, breaking
Open.
In order to ensure sealing property, the inner chamber between cable connecting seat 1 and slips 3 is annular seal space 7, main body 1 be provided with
The orifice 8 that annular seal space 7 is connected, is provided with closure plug 9 in orifice 8.Take off closure plug 9, injected in annular seal space 7 by orifice 8
Stop-leak compound, fills annular seal space 7, is reinstalled by closure plug 9 after having filled.Stop-leak compound is by the connecting portion of cable Yu cable connecting seat 1
Seal, prevent the generation of the problems such as electric leakage.
Being wound around in order to avoid connecting cable torsion, as it is shown on figure 3, cable connecting seat 6 connects aviation plug 14, aviation is inserted
14 are positioned in the endoporus set by lower contact 17 that main body 1 end connects, and match with endoporus.The inwall of endoporus is provided with
Side grain 18.Aviation plug 14 matches with endoporus, and its outer wall is identical with the profile of endoporus.
It is set with fixed plate 15 on aviation plug 14, fixed plate 15 arranges connecting bolt 16 and is connected in lower contact 17, will
Aviation plug 14 is pressed in lower contact 17, and lower contact 17 aviation plug 14 seals and is fixed to inside.
It is connected owing to being connected cable by many between aviation plug 14 with cable connecting seat 6, the rotation of aviation plug 14
To make to twist between connection cable and be wound around, even cause fracture.Side grain 18 be the profile of endoporus be incomplete circle
Shape or other non-circular shapes, make side grain 18 limit aviation plug 14, prevents aviation plug 14 from rotating in endoporus, it is to avoid
The situation generation causing above-mentioned connection cable torsion, being wound around and rupture.
Fix again in lower contact 17 when aviation plug 14 uses, use on front lower contact 17 outer end opening equipped with dust cap,
It is effectively ensured in storage and transportation process, inside hanger, will not fall into foreign material.
Claims (6)
1. a well cable hanger, including main body (1), is provided with fixation kit in the inner chamber that described main body (1) is arranged, institute
State fixation kit and include slip spider (2) and the slips (3) being arranged on slip spider (2), it is characterised in that described main body (1)
Inner chamber in be provided with and promote the fastening push rod (4) that moves axially of fixation kit, the cross section of described slips (3) is C-shaped, described
A plurality of gap (12) is axially offered on slips (3).
Well cable hanger the most according to claim 1, it is characterised in that described fixation kit is coaxial and is symmetrical arranged
Having two, slips contacts with each other between (3), and arranges back-to-back.
Well cable hanger the most according to claim 1, it is characterised in that described fastening push rod (4) and fixation kit
Between thrust retainer ring (5) is installed.
Well cable hanger the most according to claim 1, it is characterised in that be provided with in the inner chamber of described main body (1)
Cable connecting seat (6), the projection that described cable connecting seat (6) is arranged is positioned in the keyway that cavity wall is arranged.
Well cable hanger the most according to claim 4, it is characterised in that described cable connecting seat (1) and slips (3)
Between inner chamber be annular seal space (7), described main body (1) is provided with the orifice (8) being connected with annular seal space (7), in described orifice (8)
Closure plug (9) is installed.
Well cable hanger the most according to claim 4, it is characterised in that described cable connecting seat (6) connects boat
Blind plug (14), described aviation plug (14) is positioned in the endoporus set by lower contact (17) that main body (1) end connects, and with
Endoporus matches, and the inwall of described endoporus is provided with side grain (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610696779.4A CN106121577A (en) | 2016-08-17 | 2016-08-17 | Well cable hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610696779.4A CN106121577A (en) | 2016-08-17 | 2016-08-17 | Well cable hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106121577A true CN106121577A (en) | 2016-11-16 |
Family
ID=57279504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610696779.4A Pending CN106121577A (en) | 2016-08-17 | 2016-08-17 | Well cable hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106121577A (en) |
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|---|---|---|---|---|
| CN108468527A (en) * | 2018-03-30 | 2018-08-31 | 西南石油大学 | A kind of composite cable wellhead for production |
| CN109356552A (en) * | 2018-08-16 | 2019-02-19 | 中国石油天然气股份有限公司 | Suspension mechanism for underground electric heating cable and suspension unfreezing method |
| US10895202B1 (en) | 2019-09-13 | 2021-01-19 | Bj Energy Solutions, Llc | Direct drive unit removal system and associated methods |
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