CN104775780A - Flexible connection type downhole instrument tractor - Google Patents
Flexible connection type downhole instrument tractor Download PDFInfo
- Publication number
- CN104775780A CN104775780A CN201510115562.5A CN201510115562A CN104775780A CN 104775780 A CN104775780 A CN 104775780A CN 201510115562 A CN201510115562 A CN 201510115562A CN 104775780 A CN104775780 A CN 104775780A
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- China
- Prior art keywords
- tractor
- housing
- axle
- downhole instrument
- support arm
- Prior art date
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- Granted
Links
- 230000008878 coupling Effects 0.000 claims description 36
- 238000010168 coupling process Methods 0.000 claims description 36
- 238000005859 coupling reaction Methods 0.000 claims description 36
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000009738 saturating Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
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- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
-
- 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/001—Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a borehole
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)
- Earth Drilling (AREA)
Abstract
The invention relates to a flexible connection type downhole instrument tractor which comprises an anchor assembly and a tractor assembly which are connected front and back, wherein flexible cables penetrate through the anchor assembly and the tractor assembly, and one ends of the flexible cables are electrically connected with a tractor control device; the anchor assembly comprises a first shell, an anchor slip and a driving wheel set are arranged on the first shell, a first through hole is formed in the rear end of the first shell, a fixed hole seat is formed in the rear end of the interior of the first shell, and the flexible cable penetrates through the first through hole and is fixedly connected to the fixed hole seat; the retractor assembly comprises a second shell, a second through hole is formed in the front end of the second shell, a cable arranging device is arranged at the front end inside the second shell, and the flexible cable penetrates through the second through hole and is wound on the cable arranging device. The flexible connection type underground instrument tractor has the characteristics of strong adaptability to the pipe diameter of a test well, high safety, accurate positioning, simple structure, low cost and convenience in maintenance.
Description
Technical field
The present invention relates to petroleum well logging technology field, particularly relate to a kind of formula downhole instrument tractor that is flexible coupling being applicable to tester conveying under Horizontal Well.
Background technology
Current each elephant all takes much count of the exploitation of horizontal well, because horizontal well production is large, normally the 3-5 of straight well output doubly, take effect very fast, but the well logging after horizontal well drilling and the test problem after producing also highlights day by day.Because the net horizontal section after horizontal well completion and Horizon are parastate, tester transferring in oil well mainly relies on cable and self gravitation, when arriving net horizontal section, instrument cannot move on, precalculated position must could be arrived by external force, how safely, reliably tester be transported to test purpose position thus realize the full well section test of horizontal well, becoming the key issue of restriction horizontal well development.
Current domestic water horizontal well tester mode of movement can be divided into tubular column carrying to carry and crawl device conveying.In tubular column carrying mode of movement, tubing string is utilized to realize tester to deliver to test purpose position, the adaptive capacity of this mode to borehole wall ID is poor, and Oil/gas Well well is regular not in some well section, and the well section of different-diameter may be there is in same well, cause tester to be delivered to test purpose position.
In crawl device mode of movement, the tractor that known propeller technology of creeping has " oil instrument " 8 monthly magazines in 2009 the 28th page of SmarTract company introduced to produce in 2000 and the MaxTRAC type intelligent water horizontal well tractor that Schlumberger announced to release in June, 2003, above-mentioned two kinds of traction propellers all adopt special motor to drive tractor to carry, and its complex structure, involve great expense.What current use was more also has wheeled crawl device, and wheeled crawl device can produce local damage to sleeve pipe, and the ability of leaping over obstacles, in casing deformation, shakes out or cannot advance when there is greasy dirt.
Thus, the present inventor relies on and is engaged in experience and the practice of relevant industries for many years, proposes one and to be flexible coupling formula downhole instrument tractor, to overcome the defect of prior art.
Summary of the invention
One is the object of the present invention is to provide to be flexible coupling formula downhole instrument tractor, to realize object tester under horizontal well being accurately transported to net horizontal section target location, completing the test of horizontal well full well section, this formula downhole instrument tractor that is flexible coupling has, accurate positioning high to testing well caliber strong adaptability, safety, structure is simple, cost is low, easy to maintenance feature.
The object of the present invention is achieved like this, one is flexible coupling formula downhole instrument tractor, comprise front latter linked anchor assembly and tractor assembly, described anchor assembly and tractor component internal run through flexible cable, and described flexible cable one end is electrically connected on tractor control device;
Described anchor assembly comprises the first housing of closed at both ends, described first housing is provided with the grappling slips of energy radial expansion, described first enclosure interior is provided with the slips control system be connected with described grappling slips, and described slips control system is electrically connected with between flexible cable; Described first housing is also provided with driving wheels, and described driving wheels are connected with the first motor being positioned at the first enclosure interior, and described first motor is electrically connected with between flexible cable; Described first housing rear end portion is provided with the first via hole, and described first enclosure interior rear end is provided with fixed hole seat, and described flexible cable passes the first via hole and is fixedly connected on described fixed hole seat; Described tractor assembly comprises the second housing of closed at both ends, described second housing forward end portion is provided with the second via hole, described second enclosure interior front end is provided with cable-remover, described flexible cable passes the second via hole and is wound on described cable-remover, described cable-remover rear is connected with the second motor, and described second motor is electrically connected with between flexible cable.
In a better embodiment of the present invention, described grappling slips comprises fastener, the first piston bar that described fastener can be driven to move radially is connected with inside described fastener, described first piston bar other end sealing is arranged in one first seal chamber, described first seal chamber is positioned at the first enclosure interior, described first housing is provided with the first saturating groove passed for described first piston bar; Described slips control system comprises the first hydraulic pump, and described first hydraulic pump is connected with the first seal chamber by pipeline, and described first hydraulic pump one end is connected with the first control valve, and described first control valve is electrically connected with between flexible cable.
In a better embodiment of the present invention, described driving wheels comprise the symmetrically arranged multiple driving wheel of circumference, described each driving wheel center is provided with the first axle, described first axle is connected with the first support arm and the second support arm, described first housing is provided with the second saturating groove opened for the first support arm and the second support arm radial direction or regain, the lower end of described first support arm is articulated with can the first slide block of movement vertically, and described first slip front is connected with the first support arm control system; The lower end of described second support arm is connected with described first motor.
In a better embodiment of the present invention, described first slip front is connected with second piston rod that the first slide block can be driven to move axially, the other end sealing of described second piston rod is arranged in one second seal chamber, described first support arm control system comprises the second hydraulic pump, described second hydraulic pump is connected with the second seal chamber by pipeline, described second hydraulic pump one end is connected with the second control valve, and described second control valve is electrically connected with between flexible cable.
In a better embodiment of the present invention, described second support arm comprises the 3rd housing, described 3rd enclosure interior is provided with gear train, described gear train comprises multiple pitch wheel, the first geared sleeve being positioned at gear train upper end is located in described first axle, the second gear centre being positioned at gear train lower end is provided with the second axle, and described second axle one end through described 3rd housing, the second axle being positioned at described 3rd hull outside is arranged with the 3rd gear; Described first motor center is provided with the 3rd axle, and described 3rd axle is provided with the first engaging piece, and described first engaging piece is connected with the 3rd gears meshing.
In a better embodiment of the present invention, described second support arm can also be driving-chain or conveyer belt, the upper end of described driving-chain or conveyer belt is sheathed in described first axle, the lower end of described driving-chain or conveyer belt is provided with the 4th axle, and described 4th axle is arranged with the 4th gear; Described first motor center is provided with the 5th axle, and described 5th axle is provided with the second engaging piece, and described second engaging piece is connected with the 4th gears meshing.
In a better embodiment of the present invention, described second housing rear end is connected with rolling wheel centralizer.
In a better embodiment of the present invention, described first housing forward end is connected with guide head.
In a better embodiment of the present invention, described guide head front end is provided with the first male cone (strobilus masculinus) of diameter tapers forward.
In a better embodiment of the present invention, described first housing rear end is provided with the second male cone (strobilus masculinus) of convergent diametrically; Described second housing forward end is provided with the 3rd male cone (strobilus masculinus) of diameter tapers forward.
From the above mentioned, the formula downhole instrument tractor that is flexible coupling provided by the invention has following beneficial effect:
(1) to testing well caliber strong adaptability, safety is high, accurate positioning: the formula downhole instrument tractor that is flexible coupling provided by the invention utilizes anchor slips and horizontal well tube wall to carry out firm location, according to the extension elongation of actual caliber determination grappling slips, strong adaptability; Utilize rolling wheel centralizer to reduce to be flexible coupling the wearing and tearing of formula downhole instrument tractor and tube wall, safety is high; Control device and each anatomical connectivity, controlled by ground control program, accurate positioning;
(2) structure is simple, and cost is low, easy to maintenance: the formula downhole instrument tractor that is flexible coupling provided by the invention utilizes cable-remover to realize the folding and unfolding of flexible cable, and then completes the advance of the whole formula downhole instrument tractor that is flexible coupling; Without the need to customizing motor, cost is lower; Each structure is connected by flexible cable, and structure is simple, easy to maintenance.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein:
Fig. 1: be the structural representation of the formula downhole instrument tractor that is flexible coupling of the present invention.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and the specific embodiment of the present invention is described.
As shown in Figure 1, the formula downhole instrument tractor 100 that is flexible coupling provided by the invention, comprise front latter linked anchor assembly 1 and tractor assembly 2, anchor assembly 1 and tractor assembly 2 inside are run through flexible cable 3, flexible cable 3 one end is electrically connected on tractor control device (prior art, not shown), anchor assembly 1 comprises the first housing 11 of closed at both ends, first housing 11 is provided with the grappling slips 12 of energy radial expansion, first housing 11 inside is provided with the slips control system 13 be connected with grappling slips 12, be electrically connected between slips control system 13 with flexible cable 3, in the present embodiment, grappling slips 12 comprises fastener 121, the first piston bar 122 that described fastener can be driven to move radially is connected with inside fastener 121, the sealing of first piston bar 122 other end is arranged in the first seal chamber 123, it is inner that first seal chamber 123 is positioned at the first housing 11, first housing 11 is provided with the first saturating groove 113 for the movement of described first piston bar 122, the quantity of grappling slips 12 is the multiple of circumference symmetry, slips control system 13 is comprised the first hydraulic pump 131, first hydraulic pump 131 and is connected with the first seal chamber 123 by pipeline, and first hydraulic pump 131 one end is connected with the first control valve 132, first control valve 131 and is electrically connected with between flexible cable.
First housing 11 is also provided with and drives wheels 14, wheels 14 are driven to be connected with the first motor 15 being positioned at the first housing 11 inside, first motor 15 is electrically connected with between flexible cable 3, in the present embodiment, wheels 14 are driven to comprise the symmetrically arranged multiple driving wheel 141 of circumference, each driving wheel 141 center is provided with the first axle 142, first axle 142 is connected with the first support arm 143 and the second support arm 144, first housing 11 is provided with the second saturating groove 114 opened for the first support arm 143 and the second support arm 144 radial direction or regain, the lower end of the first support arm 143 is articulated with can the first slide block 145 of movement vertically, first slide block 145 front end is connected with the first support arm control system 146, the lower end of the second support arm 144 is connected with the first motor 15.
First housing 11 rearward end is provided with the first via hole 111, first housing 11 Internal back end and is provided with fixed hole seat 112, and flexible cable 3 passes the first via hole 111 and is fixedly connected on described fixed hole seat 112; Tractor assembly 2 comprises the second housing 21 of closed at both ends, second housing 21 leading section is provided with the second via hole 211, second housing 21 interior forward end is provided with cable-remover 22, flexible cable 3 passes the second via hole 211 and is wound on cable-remover 22, in the present embodiment, the freedom length being wound in the flexible cable on cable-remover 22 is 10 meters; Cable-remover 22 rear is connected with the second motor 23, second motor 23 and is electrically connected with between flexible cable 3.Realized the folding and unfolding of flexible cable by cable-remover 22, and then complete the advance of the whole formula downhole instrument tractor 100 that is flexible coupling.
Further, first slide block 145 front end is connected with second piston rod 147 that the first slide block can be driven to move axially, the other end sealing of the second piston rod 147 is arranged in the second seal chamber 148, first support arm control system 146 comprises the second hydraulic pump 1461, second hydraulic pump 1461 is connected with the second seal chamber 148 by pipeline, second hydraulic pump 1461 one end is connected with the second control valve 1462, second control valve 1462 and is electrically connected with between flexible cable.
In one embodiment of this invention, second support arm 144 comprises the 3rd housing 1441,3rd housing 1441 inside is provided with gear train 1442, gear train 1442 comprises intermeshing multiple gear, the first geared sleeve being positioned at gear train 1442 upper end is located in the first axle 142, the second gear centre being positioned at gear train 1442 lower end is provided with the second axle 1443, second axle 1443 one end, through the 3rd housing 1441, is positioned in the second axle 1443 outside the 3rd housing 1441 and is arranged with the 3rd gear 1444; First motor 15 center is provided with and the 3rd axle the 151, three axle 151 is provided with the first engaging piece 1511, first engaging piece 1511 and the 3rd gear 1444 is connected with a joggle.
In another embodiment of the invention, the second support arm 144 is driving-chain or conveyer belt, and the upper end of driving-chain or conveyer belt is sheathed in the first axle 142, and the lower end of driving-chain or conveyer belt is provided with the 4th axle, the 4th axle is arranged with the 4th gear; First motor 15 center is provided with the 5th axle, and the 5th axle is provided with the second engaging piece, and the second engaging piece is connected with the 4th gears meshing.
In order to the friction of reduce to be flexible coupling formula downhole instrument tractor 100 and horizontal well tube wall, improve robust motion, the second housing 21 rear end is connected with rolling wheel centralizer 24, and rolling wheel centralizer 24 rear end is connected with downhole instrument 4.
In order to reduce the resistance be flexible coupling in formula downhole instrument tractor 100 advance process, the first housing 11 front end is connected with guide head 16, and in the present embodiment, guide head 16 front end is provided with the first male cone (strobilus masculinus) of diameter tapers forward; Meanwhile, the first housing 11 rear end is provided with the second male cone (strobilus masculinus) of convergent diametrically, and the second housing 21 front end is provided with the 3rd male cone (strobilus masculinus) of diameter tapers forward.
When the formula downhole instrument tractor 100 that is flexible coupling provided by the invention works, first downhole instrument 4 is connected with rolling wheel centralizer 24 rear end, rolling wheel centralizer 24 is in open configuration, flexible cable 3 is electrically connected with control device, flexible cable 3 free segment is all wrapped on cable-remover 22, cable-remover 22 is in lockup state, and the first housing 11 and the second housing 21 are mutually against, grappling slips 12 with drive wheels 14 to be in retracted state.In instrument decentralization process, peupendicular hole section is transferred by formula downhole instrument tractor 100 deadweight that is flexible coupling, when transferring to the larger well section of gradient, control cable-remover 22 by control device to unlock, the first support arm 143 is strutted by the first support arm control system 146, after each driving wheel 141 contacts with the borehole wall, first support arm control system 146 quits work, start the first motor 15, drive each driving wheel 141 to rotate to advance, flexible cable 3 travels forward along with anchor assembly 1 and extends, and when advancing close to maximum freedom length, the first motor 15 stops driving; Meanwhile, control device controls slips control system 13, makes the fastener 121 of grappling slips 12 extend radially out clamping to the borehole wall, now regains the first support arm 143 by the first support arm control system 146, and each driving wheel 141 radial direction is regained; Afterwards, start the second motor 23, control cable-remover 22 and reclaim flexible cable 3, tractor assembly 2 and downhole instrument 4 advance along with the recovery of flexible cable 3, be wound on cable-remover 22 until the free segment of flexible cable 3 is all regained, now, the fastener 121 of grappling slips 12 is regained by controlling slips control system 13; Then, again strut the first support arm 143 by the first support arm control system 146, enter subsequent work circulation.Circulation like this is gone down, until downhole instrument 4 is drawn to assigned address, then the formula downhole instrument tractor 100 that is flexible coupling is returned to the state just transferred, upper portable cable carries out the admission of log parameter, carries the flexible cable 3 formula downhole instrument tractor 100 that will be flexible coupling and take out ground after well logging on continuing.
From the above mentioned, the formula downhole instrument tractor that is flexible coupling provided by the invention has following beneficial effect:
(1) to testing well caliber strong adaptability, safety is high, accurate positioning: the formula downhole instrument tractor that is flexible coupling provided by the invention utilizes anchor slips and horizontal well tube wall to carry out firm location, according to the extension elongation of actual caliber determination grappling slips, strong adaptability; Utilize rolling wheel centralizer to reduce to be flexible coupling the wearing and tearing of formula downhole instrument tractor and tube wall, safety is high; Control device and each anatomical connectivity, controlled by ground control program, accurate positioning;
(2) structure is simple, and cost is low, easy to maintenance: the formula downhole instrument tractor that is flexible coupling provided by the invention utilizes cable-remover to realize the folding and unfolding of flexible cable, and then completes the advance of the whole formula downhole instrument tractor that is flexible coupling; Without the need to customizing motor, cost is lower; Each structure is connected by flexible cable, and structure is simple, easy to maintenance.
The foregoing is only the schematic detailed description of the invention of the present invention, and be not used to limit scope of the present invention.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should belong to the scope of protection of the invention.
Claims (10)
1. the formula downhole instrument tractor that is flexible coupling, it is characterized in that: described in the formula downhole instrument tractor that is flexible coupling comprise front latter linked anchor assembly and tractor assembly, described anchor assembly and tractor component internal run through flexible cable, and described flexible cable one end is electrically connected on tractor control device;
Described anchor assembly comprises the first housing of closed at both ends, described first housing is provided with the grappling slips of energy radial expansion, described first enclosure interior is provided with the slips control system be connected with described grappling slips, and described slips control system is electrically connected with between flexible cable; Described first housing is also provided with driving wheels, and described driving wheels are connected with the first motor being positioned at the first enclosure interior, and described first motor is electrically connected with between flexible cable; Described first housing rear end portion is provided with the first via hole, and described first enclosure interior rear end is provided with fixed hole seat, and described flexible cable passes the first via hole and is fixedly connected on described fixed hole seat; Described tractor assembly comprises the second housing of closed at both ends, described second housing forward end portion is provided with the second via hole, described second enclosure interior front end is provided with cable-remover, described flexible cable passes the second via hole and is wound on described cable-remover, described cable-remover rear is connected with the second motor, and described second motor is electrically connected with between flexible cable.
2. be flexible coupling formula downhole instrument tractor as claimed in claim 1, it is characterized in that: described grappling slips comprises fastener, the first piston bar that described fastener can be driven to move radially is connected with inside described fastener, described first piston bar other end sealing is arranged in one first seal chamber, described first seal chamber is positioned at the first enclosure interior, described first housing is provided with the first saturating groove passed for described first piston bar; Described slips control system comprises the first hydraulic pump, and described first hydraulic pump is connected with the first seal chamber by pipeline, and described first hydraulic pump one end is connected with the first control valve, and described first control valve is electrically connected with between flexible cable.
3. be flexible coupling formula downhole instrument tractor as claimed in claim 1, it is characterized in that: described driving wheels comprise the symmetrically arranged multiple driving wheel of circumference, described each driving wheel center is provided with the first axle, described first axle is connected with the first support arm and the second support arm, described first housing is provided with the second saturating groove opened for the first support arm and the second support arm radial direction or regain, the lower end of described first support arm is articulated with can the first slide block of movement vertically, and described first slip front is connected with the first support arm control system; The lower end of described second support arm is connected with described first motor.
4. be flexible coupling formula downhole instrument tractor as claimed in claim 3, it is characterized in that: described first slip front is connected with second piston rod that the first slide block can be driven to move axially, the other end sealing of described second piston rod is arranged in one second seal chamber, described first support arm control system comprises the second hydraulic pump, described second hydraulic pump is connected with the second seal chamber by pipeline, described second hydraulic pump one end is connected with the second control valve, and described second control valve is electrically connected with between flexible cable.
5. be flexible coupling formula downhole instrument tractor as claimed in claim 4, it is characterized in that: described second support arm comprises the 3rd housing, described 3rd enclosure interior is provided with gear train, described gear train comprises multiple pitch wheel, the first geared sleeve being positioned at gear train upper end is located in described first axle, the second gear centre being positioned at gear train lower end is provided with the second axle, described second axle one end through described 3rd housing, the second axle being positioned at described 3rd hull outside is arranged with the 3rd gear; Described first motor center is provided with the 3rd axle, and described 3rd axle is provided with the first engaging piece, and described first engaging piece is connected with the 3rd gears meshing.
6. be flexible coupling formula downhole instrument tractor as claimed in claim 4, it is characterized in that: described second support arm can also be driving-chain or conveyer belt, the upper end of described driving-chain or conveyer belt is sheathed in described first axle, the lower end of described driving-chain or conveyer belt is provided with the 4th axle, and described 4th axle is arranged with the 4th gear; Described first motor center is provided with the 5th axle, and described 5th axle is provided with the second engaging piece, and described second engaging piece is connected with the 4th gears meshing.
7. be flexible coupling formula downhole instrument tractor as claimed in claim 1, it is characterized in that: described second housing rear end is connected with rolling wheel centralizer.
8. be flexible coupling formula downhole instrument tractor as claimed in claim 1, it is characterized in that: described first housing forward end is connected with guide head.
9. be flexible coupling formula downhole instrument tractor as claimed in claim 8, it is characterized in that: described guide head front end is provided with the first male cone (strobilus masculinus) of diameter tapers forward.
10. be flexible coupling formula downhole instrument tractor as claimed in claim 1, it is characterized in that: described first housing rear end is provided with the second male cone (strobilus masculinus) of convergent diametrically; Described second housing forward end is provided with the 3rd male cone (strobilus masculinus) of diameter tapers forward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510115562.5A CN104775780B (en) | 2015-03-17 | 2015-03-17 | Flexible connection type downhole instrument tractor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510115562.5A CN104775780B (en) | 2015-03-17 | 2015-03-17 | Flexible connection type downhole instrument tractor |
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| CN104775780A true CN104775780A (en) | 2015-07-15 |
| CN104775780B CN104775780B (en) | 2017-06-06 |
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| CN201510115562.5A Active CN104775780B (en) | 2015-03-17 | 2015-03-17 | Flexible connection type downhole instrument tractor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952404A (en) * | 2016-06-22 | 2016-09-21 | 西安石油大学 | Hydraulically driven alternative telescopic coiled tubing traction apparatus |
| CN108915666A (en) * | 2018-06-01 | 2018-11-30 | 中国北方车辆研究所 | A kind of oilfield horizontal well mixed traction device |
| CN110894902A (en) * | 2019-12-31 | 2020-03-20 | 中国人民解放军92578部队 | Telescopic crawling robot in pneumatic pipe |
| CN110945207A (en) * | 2017-07-06 | 2020-03-31 | 井式输送机公司 | Propulsion module for pull tools and pull tools in boreholes and/or conduits |
| CN111980612A (en) * | 2020-09-02 | 2020-11-24 | 西安石油大学 | Slip mechanism for downhole choke |
| CN113483673A (en) * | 2021-07-12 | 2021-10-08 | 马卫立 | Automatic drift diameter detection device for oil pipe |
| CN114046395A (en) * | 2021-11-19 | 2022-02-15 | 北京环鼎科技有限责任公司 | Modularization crawler |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080066963A1 (en) * | 2006-09-15 | 2008-03-20 | Todor Sheiretov | Hydraulically driven tractor |
| CN201106445Y (en) * | 2007-11-20 | 2008-08-27 | 中国石油天然气集团公司 | Reducing tow device for casing horizontal well logging dragging device |
| US20090159269A1 (en) * | 2006-02-09 | 2009-06-25 | Sheiretov Todor K | Self-Anchoring Device with Force Amplification |
| CN102518407A (en) * | 2012-01-05 | 2012-06-27 | 西南石油大学 | Cable type underground axial force generating device |
| CN104373069A (en) * | 2014-11-04 | 2015-02-25 | 中国石油天然气股份有限公司 | Propeller type downhole instrument propeller |
| CN204627481U (en) * | 2015-03-17 | 2015-09-09 | 中国石油天然气股份有限公司 | Flexible connection type downhole instrument tractor |
-
2015
- 2015-03-17 CN CN201510115562.5A patent/CN104775780B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090159269A1 (en) * | 2006-02-09 | 2009-06-25 | Sheiretov Todor K | Self-Anchoring Device with Force Amplification |
| US20080066963A1 (en) * | 2006-09-15 | 2008-03-20 | Todor Sheiretov | Hydraulically driven tractor |
| CN201106445Y (en) * | 2007-11-20 | 2008-08-27 | 中国石油天然气集团公司 | Reducing tow device for casing horizontal well logging dragging device |
| CN102518407A (en) * | 2012-01-05 | 2012-06-27 | 西南石油大学 | Cable type underground axial force generating device |
| CN104373069A (en) * | 2014-11-04 | 2015-02-25 | 中国石油天然气股份有限公司 | Propeller type downhole instrument propeller |
| CN204627481U (en) * | 2015-03-17 | 2015-09-09 | 中国石油天然气股份有限公司 | Flexible connection type downhole instrument tractor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952404A (en) * | 2016-06-22 | 2016-09-21 | 西安石油大学 | Hydraulically driven alternative telescopic coiled tubing traction apparatus |
| CN110945207A (en) * | 2017-07-06 | 2020-03-31 | 井式输送机公司 | Propulsion module for pull tools and pull tools in boreholes and/or conduits |
| CN108915666A (en) * | 2018-06-01 | 2018-11-30 | 中国北方车辆研究所 | A kind of oilfield horizontal well mixed traction device |
| CN110894902A (en) * | 2019-12-31 | 2020-03-20 | 中国人民解放军92578部队 | Telescopic crawling robot in pneumatic pipe |
| CN110894902B (en) * | 2019-12-31 | 2021-10-22 | 中国人民解放军92578部队 | Telescopic crawling robot in pneumatic pipe |
| CN111980612A (en) * | 2020-09-02 | 2020-11-24 | 西安石油大学 | Slip mechanism for downhole choke |
| CN113483673A (en) * | 2021-07-12 | 2021-10-08 | 马卫立 | Automatic drift diameter detection device for oil pipe |
| CN113483673B (en) * | 2021-07-12 | 2024-01-26 | 中国石油化工股份有限公司 | Automatic oil pipe detection diameter device |
| CN114046395A (en) * | 2021-11-19 | 2022-02-15 | 北京环鼎科技有限责任公司 | Modularization crawler |
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| CN104775780B (en) | 2017-06-06 |
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