CN202673274U - Wheel type extensible continuous crawl tractor for horizontal well - Google Patents
Wheel type extensible continuous crawl tractor for horizontal well Download PDFInfo
- Publication number
- CN202673274U CN202673274U CN 201220261526 CN201220261526U CN202673274U CN 202673274 U CN202673274 U CN 202673274U CN 201220261526 CN201220261526 CN 201220261526 CN 201220261526 U CN201220261526 U CN 201220261526U CN 202673274 U CN202673274 U CN 202673274U
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- slide block
- stretching unit
- horizontal well
- locking stretching
- locking
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Abstract
The utility model discloses a wheel type extensible continuous crawl tractor for a horizontal well. The wheel type extensible continuous crawl tractor for the horizontal well comprises a locking extensible unit which comprises at least a first locking extensible unit and a second locking extensible unit. The first locking extensible unit and the second locking extensible unit are connected. The first locking extensible unit and the second locking extensible unit extend alternately to achieve a dragging motion. The wheel type extensible continuous crawl tractor for the horizontal well is reliable in operation and large in driving force, can achieve two-way crawling, and can move in an inverted direction to achieve unblocking when meeting blocks.
Description
Technical field
The utility model relates to a kind of wheeled flexible tractor of creeping continuously for all kinds of loggers of operation conveying in the pipeline of horizontal well, and the utility model can drag cable and carry downhole tool and creep continuously in pipeline.
Background technology
In the oil and gas development process, use horizontal well development oil-gas reservoir owing to its outstanding advantage finds broad application.But a difficult point of horizontal well development is how various downhole instruments to be sent into smoothly the horizontal segment of horizontal well.
Present stage, comparatively advanced way was, adopted the down-hole draw-gear instrument to be sent into the horizontal segment of horizontal well.At present used down-hole draw-gear mainly contains two large classes, wheeled tractor with grab arm rest slidingtype tractor.The down-hole draw-gear of a kind of orientation or horizontal well is disclosed such as China Patent No. " 200310105801.6 ", open day be 2005.04.13, and it is from top to bottom mainly by magnetic locator, sensor pipe nipple, power supply and control section, two overlap identical and interconnect and form at the traction drive mechanism that radially is mutually 90 ° of arrangements up and down.The alternative domestic prior art of described down-hole draw-gear, and can use single core or multicore logging cable, be used for finishing well logging or other underground work at cased well traction production logging instrument or other downhole tool of net horizontal section and larger gradient.
But wheeled tractor of the prior art and grab arm rest slidingtype tractor and also have following deficiency: wheeled tractor abroad technology is comparatively ripe, but also Shortcomings is little such as driving force, is easy to skid, complex structure, the shortcoming such as reliability is low.Grabbing arm rest slidingtype tractor is comparatively advanced at present tractor, and its core is to grab the design of arm rest, and currently used its ability of crossing over depression and step of arm rest of grabbing is very limited.
Summary of the invention
The purpose of this utility model is to overcome existing wheeled tractor and grabs the problems referred to above that arm rest slidingtype tractor exists, a kind of wheeled flexible tractor of creeping continuously for horizontal well is provided, the utility model is reliable, driving force is large, can realize bidirectional creeping, can the inverted running unfreezing when meeting card in the down-hole.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of wheeled flexible tractor of creeping continuously for horizontal well, it is characterized in that: comprise the locking stretching unit, described locking stretching unit comprises the first locking stretching unit and the second locking stretching unit at least, the first locking stretching unit is connected with the second locking stretching unit, the flexible drawing-in motion of finishing of the first locking stretching unit and the second locking stretching units alternately.
Described locking stretching unit comprises cylinder barrel, piston, piston rod, guide rod, slip cap, slide block, lock arm, righting wheel and spring, slide block comprises the first slide block, the second slide block and the 3rd slide block, described guide rod one end arranges rod coupling, the other end is connected with piston, slip cap is arranged on the guide rod, the first slide block and the second slide block are arranged on the slip cap, slip cap is fixedly connected with the 3rd slide block, the 3rd slide block is fixedly connected with cylinder barrel, between the first slide block and the second slide block spring is set, between the second slide block and the 3rd slide block spring is set, the first slide block, the second slide block and the 3rd slide block all are connected to righting wheel by lock arm.
The piston rod of described the first locking stretching unit is connected with the piston rod of the second locking stretching unit.
Described righting wheel adopts the righting wheel of one-directional rotation, counteresteer, and righting wheel contacts with the tube wall of horizontal well and extruding force arranged.
Described locking stretching unit comprises 12 groups of lock arms, and each righting wheel connects two groups of lock arms; In two groups of lock arms, one group of lock arm is connected with left slider, and another group is connected with the right side slide block.
The piston rod of the first locking stretching unit is connected by unit interface with the piston rod of the second locking stretching unit, and unit interface is screw thread.
Described rod coupling and guide rod adopt clamp connection.
Described guide rod and piston adopt screwed connection.
Described slide block and lock arm one side chain connection, lock arm opposite side and righting wheel chain connection.
Described the first slide block is slidingly located on the slip cap, and the first slide block one side is connected with spring, and described the second slide block is slidingly located on the slip cap, and the second slide block both sides all are connected with spring.
Employing the utility model has the advantage of:
One, the utility model adopts two identical locking stretching unit combination of structure to form, simple in structure, when a locking stretching unit locked, another locking stretching unit drove movement of tool, reliable, driving force is large, adopts the centralizer locking, is difficult for skidding, in horizontal well, can realize bidirectional creeping, energy inverted running unfreezing when meeting card in the down-hole, modular has strengthened reliability.
Two, in the utility model, described locking stretching unit comprises cylinder barrel, piston, piston rod, guide rod, slip cap, slide block, lock arm, righting wheel and spring, slide block comprises the first slide block, the second slide block and the 3rd slide block, described guide rod one end arranges rod coupling, the other end is connected with piston, slip cap is arranged on the guide rod, the first slide block and the second slide block are arranged on the slip cap, slip cap is fixedly connected with the 3rd slide block, the 3rd slide block is fixedly connected with cylinder barrel, between the first slide block and the second slide block spring is set, between the second slide block and the 3rd slide block spring is set, the first slide block, the second slide block and the 3rd slide block all are connected to righting wheel by lock arm, two groups of flexible frame for movement and modes of finishing drawing-in motion of locking stretching units alternately have a lot, adopt this mode structure the simplest, reliability, safety and operational efficiency are the highest.
Three, in the utility model, described righting wheel adopts the righting wheel of one-directional rotation, counteresteer, and righting wheel contacts with the tube wall of horizontal well and extruding force is arranged, and the obstacle crossing ability of righting wheel is strong, can control the locking direction of righting wheel.
Four, in the utility model, described locking stretching unit comprises 12 groups of lock arms, and each righting wheel connects two groups of lock arms; In two groups of lock arms, one group of lock arm is connected with left slider, another group is connected with the right side slide block, adopt this structure to make each slide block be connected to three righting wheels, realize 3 lockings during locking, lock more reliably, and the utility model total length is reduced, strengthened the ability by small curvature radius.
Five, in the utility model, the piston rod of the first locking stretching unit is connected by unit interface with the piston rod of the second locking stretching unit, and unit interface is screw thread, and this structure has increased the reliability that connects, and is easy to installation and removal.
Six, in the utility model, described rod coupling and guide rod adopt clamp connection, adopt this connected mode to be conducive to construction safety, and without impact, attended operation is simple on the guide rod structure characteristic.
Seven, in the utility model, described guide rod and piston adopt screwed connection, and this connected mode is combined with overall structure, are conducive to the inverted running unfreezing when the chance card of down-hole.
Eight, the utility model, described slide block and lock arm one side chain connection, lock arm opposite side and righting wheel chain connection, this connected mode has guaranteed the reliability of locking and has realized quick release.
Nine, in the utility model, described the first slide block is slidingly located on the slip cap, the first slide block one side is connected with spring, described the second slide block is slidingly located on the slip cap, the second slide block both sides all are connected with spring, the extruding force of the tube wall contact position of righting wheel and horizontal well can realize the locking and unlocking by the elastic force of control spring when adopting this structure to control to adjust locking by spring.
Description of drawings
Fig. 1 is the utility model structural representation
Be labeled as among the figure: 1, rod coupling, 2, guide rod, 3, slip cap, 4, the first slide block, 5, lock arm, 6, righting wheel, 7, spring, the 8, second slide block, the 9, the 3rd slide block, 10, cylinder barrel, 11, piston, 12, piston rod, 13, tube wall, 14, the first locking stretching unit, 15, unit interface, the 16, second locking stretching unit.
The specific embodiment
Embodiment 1
The utility model is for draw-gear from downhole instrument to horizontal well that carry, relevant logger can be sent to the horizontal well assigned address.
The utility model mainly comprises two groups of locking stretching unit that structure is identical, two groups of flexible drawing-in motions of finishing of locking stretching units alternately.Two groups of flexible frame for movement and modes of finishing drawing-in motion of locking stretching units alternately have a lot, and present embodiment is preferably hydraulic cylinder structure.
Below in conjunction with accompanying drawing the utility model content is described in detail.
As shown in Figure 1, a kind of wheeled flexible tractor of creeping continuously of the utility model, it comprises that the structure of 16, the first locking stretching unit 14,14, the second locking stretching unit, the first locking stretching unit and the second locking stretching unit 16 forms identical; The first locking stretching unit 14 is connected with the second locking stretching unit 16 usefulness unit interfaces 15, and unit interface 15 is the standard screw thread; Rod coupling 1 adopts clamp connection with guide rod 2, and guide rod 2 adopts screwed connection with piston 11; Slip cap 3 can slide at guide rod 2, slip cap 3 connects with the 3rd slide block 9 and is relative fixing, and the first slide block 4 can slide at slip cap 3, and the first slide block 4 right sides are connected with spring 7, rear spring 7 is installed is in extended state, the first slide block 4 and lock arm 5 one sides are with chain connection; The first locking stretching unit 14 has 12 groups of lock arms 5, and lock arm 5 opposite sides and righting wheel 6 are with chain connection, and righting wheel 6 is one-directional rotation, counteresteer; Righting wheel 6 contacts with tube wall 13 and certain extruding force is arranged, the second slide block 8 can slide at slip cap 3, the second slide block 8 both sides all are connected with spring 7, the 3rd slide block 9 is relative fixing with cylinder barrel 10, be connected with moving sets between cylinder barrel 10 and the piston 11, piston 11 and piston rod 12 are relative fixing and form an integral body with piston 11.
Preferred embodiment of the present utility model is, described locking stretching unit comprises 12 groups of lock arms, and each righting wheel connects two groups of lock arms; In two groups of lock arms, one group of lock arm is connected with left slider, and another group is connected with the right side slide block, and for example, two groups of lock arms are connected respectively to the first slide block and the second slide block.
The course of work of the present utility model is as follows:
In the first flexible lock cell 14, motion by the control slide block, make righting wheel 6 lockings, after righting wheel 6 lockings in the first flexible lock cell 14, as shown in the figure, this moment righting wheel 6 clockwise lockings, this moment the 3rd slide block 9 and cylinder barrel 10 motion locking left, the second locking stretching unit 16 non-lockings, cylinder barrel 10 under action of hydraulic force in the first flexible lock cell 14 is motionless, promotes the piston 11 in the first flexible lock cell 14, piston rod 12 and the second locking stretching unit 16 move right, when the second locking stretching unit 16 moves right, cylinder barrel 10 relative piston rods 12 also move right, and have so just finished the first element in the circulation; Afterwards righting wheel 6 lockings in the second flexible lock cell 16, this moment righting wheel 6 clockwise lockings, so that the 3rd slide block 9 and cylinder barrel 10 motion locking left in the second flexible lock cell 16,14 releases of the first locking stretching list, the cylinder barrel 10 of the second locking stretching unit 16 is motionless under action of hydraulic force, drive piston 11 piston rods 12 and the first locking stretching list 14 and move right, so far tractor is finished an actuation cycle.Realize locking clockwise or counterclockwise of righting wheel by control, when realizing counterclockwise locking, can realize the reverse traction of tractor.
Embodiment 2
Present embodiment and above-described embodiment are basic identical, and the main distinction is: hydraulic cylinder structure is replaced with cylinder etc., as long as can realize the alternately flexible drawing-in motion of finishing of the first locking stretching list 14 and the second flexible lock cell 16.
Claims (9)
1. wheeled flexible tractor of creeping continuously that is used for horizontal well, it is characterized in that: comprise the locking stretching unit, described locking stretching unit comprises the first locking stretching unit (14) and the second locking stretching unit (16) at least, the first locking stretching unit (14) is connected with the second locking stretching unit (16), and the first locking stretching unit (14) and the second locking stretching unit (16) be the flexible drawing-in motion of finishing alternately.
2. the wheeled flexible tractor of creeping continuously for horizontal well according to claim 1, it is characterized in that: described locking stretching unit comprises cylinder barrel (10), piston (11), piston rod (12), guide rod (2), slip cap (3), slide block, lock arm (5), righting wheel (6) and spring (7), slide block comprises the first slide block (4), the second slide block (8) and the 3rd slide block (9), described guide rod (2) one ends arrange rod coupling (1), the other end is connected with piston (11), slip cap (3) is arranged on the guide rod (2), the first slide block (4) and the second slide block (8) are arranged on the slip cap (3), slip cap (3) is fixedly connected with the 3rd slide block (9), the 3rd slide block (9) is fixedly connected with cylinder barrel (10), between the first slide block (4) and the second slide block (8) spring (7) is set, between the second slide block (8) and the 3rd slide block (9) spring (7) is set, the first slide block (4), the second slide block (8) and the 3rd slide block (9) all are connected to righting wheel (6) by lock arm (5).
3. the wheeled flexible tractor of creeping continuously for horizontal well according to claim 2, it is characterized in that: the piston rod of described the first locking stretching unit (14) is connected with the piston rod of the second locking stretching unit (16).
4. according to claim 2 or the 3 described wheeled flexible tractors of creeping continuously for horizontal well, it is characterized in that: described locking stretching unit comprises 12 groups of lock arms (5), and each righting wheel (6) connects two groups of lock arms (5); In two groups of lock arms, one group of lock arm is connected with left slider, and another group is connected with the right side slide block.
5. the wheeled flexible tractor of creeping continuously for horizontal well according to claim 4, it is characterized in that: (14) piston rod of the first locking stretching unit is connected by unit interface (15) with the piston rod of the second locking stretching unit (16), and unit interface (15) is screw thread.
6. according to claim 3, the 4 or 5 described wheeled flexible tractors of creeping continuously for horizontal well, it is characterized in that: described rod coupling (1) adopts clamp connection with guide rod (2).
7. the wheeled flexible tractor of creeping continuously for horizontal well according to claim 6 is characterized in that: described guide rod (2) and piston (11) employing screwed connection.
8. according to claim 3,4, the 5 or 7 described wheeled flexible tractors of creeping continuously for horizontal well, it is characterized in that: described slide block and lock arm (5) one side chain connections, lock arm (5) opposite side and righting wheel (6) chain connection.
9. the wheeled flexible tractor of creeping continuously for horizontal well according to claim 8, it is characterized in that: described the first slide block (4) is slidingly located on the slip cap (3), the first slide block (4) one sides are connected with spring (7), described the second slide block (8) is slidingly located on the slip cap (3), and the second slide block (8) both sides all are connected with spring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261526 CN202673274U (en) | 2012-06-05 | 2012-06-05 | Wheel type extensible continuous crawl tractor for horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261526 CN202673274U (en) | 2012-06-05 | 2012-06-05 | Wheel type extensible continuous crawl tractor for horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673274U true CN202673274U (en) | 2013-01-16 |
Family
ID=47494184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220261526 Expired - Lifetime CN202673274U (en) | 2012-06-05 | 2012-06-05 | Wheel type extensible continuous crawl tractor for horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673274U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720477A (en) * | 2012-06-05 | 2012-10-10 | 中国石油集团川庆钻探工程有限公司 | Wheeled telescopic continuous creeping tractor used for horizontal well |
| CN105927169A (en) * | 2016-05-12 | 2016-09-07 | 西南石油大学 | Drilling pressure and torque amplifier for coiled tubing |
| US11236563B1 (en) | 2020-07-30 | 2022-02-01 | Saudi Arabian Oil Company | Autonomous downhole tool |
-
2012
- 2012-06-05 CN CN 201220261526 patent/CN202673274U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720477A (en) * | 2012-06-05 | 2012-10-10 | 中国石油集团川庆钻探工程有限公司 | Wheeled telescopic continuous creeping tractor used for horizontal well |
| CN102720477B (en) * | 2012-06-05 | 2015-07-22 | 中国石油集团川庆钻探工程有限公司 | Wheeled telescopic continuous creeping tractor used for horizontal well |
| CN105927169A (en) * | 2016-05-12 | 2016-09-07 | 西南石油大学 | Drilling pressure and torque amplifier for coiled tubing |
| US11236563B1 (en) | 2020-07-30 | 2022-02-01 | Saudi Arabian Oil Company | Autonomous downhole tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |