CN110284836A - A kind of bias executing agency - Google Patents
A kind of bias executing agency Download PDFInfo
- Publication number
- CN110284836A CN110284836A CN201910749138.4A CN201910749138A CN110284836A CN 110284836 A CN110284836 A CN 110284836A CN 201910749138 A CN201910749138 A CN 201910749138A CN 110284836 A CN110284836 A CN 110284836A
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- cylinder
- eccentric
- shorted
- rotation
- bias
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- 230000007704 transition Effects 0.000 claims abstract description 21
- 230000008878 coupling Effects 0.000 claims abstract description 14
- 238000010168 coupling process Methods 0.000 claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000005553 drilling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005728 strengthening Methods 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of eccentric executing agencies, including outer cylinder, upper rotation is shorted, lower rotation is shorted, bias executes cylinder, eccentric wedge block and power source, upper rotation is shorted to be shorted with lower rotation and be connected by shaft coupling, power source is socketed in rotation and is shorted, power source executes cylinder with bias and is connected, bias executes cylinder and is socketed on rotation short circuit and lower rotation short circuit, lower rotation, which is shorted, is provided with gap between outer cylinder, eccentric wedge block is connected to eccentric execute on cylinder, it includes inner end that lower rotation, which is shorted, outer end and transition, outer cylinder is stretched out in outer end, inner end is located in shaft coupling, outer diameter is greater than inner end diameter, transition is inclined-plane, when lower rotation is shorted not eccentric, wedge block is in the gap between inner end and outer cylinder, when lower rotation is shorted eccentric, wedge block is in the gap between transition and outer cylinder.The present invention is eccentric by the lower rotation short circuit of control, just can control the drill bit bias for being shorted connection with lower rotation, the change in drill bit direction is realized, to reach the variation of well track.
Description
Technical field
The present invention relates to a kind of drilling rigs, more particularly to a kind of device that can change drill bit direction.
Background technique
Directional well technology is one of world today's petroleum, the state-of-the-art drilling technology in natural gas exploration and development field, it is
Well track is effectively controlled by special downhole tool, measuring instrument and technology, bores drill bit up to underground along specific direction
The drilling technology of predeterminated target.It is obtained using the petroleum resources that directional well technology can be such that ground and underground condition is restricted
To economical and effective exploitation, oil and gas production can be increased substantially and reduce drilling cost, be conducive to conservation of nature environment, have
There are significant economic benefit and social benefit.Directional well is exactly to bore well bore up to target zone along the hole deviation and orientation being pre-designed
Boring method.
Realize the variation of well track, it is necessary to control the change of drill bit direction, the change needs in drill bit direction are used partially
Heart executing agency, therefore, develop a set of eccentric executing agency very it is necessary to.
Summary of the invention
The present invention passes through eccentric executing agency, control in order to solve the above technical problems, provide a kind of eccentric executing agency
Lower rotation is shorted bias, just can control, the change in realization drill bit direction, to reach well eccentric with the drill bit of lower rotation short circuit connection
The variation of eye track.
In order to solve the above technical problems, the technical scheme adopted by the invention is that:
A kind of bias executing agency, it is characterised in that: be shorted including outer cylinder, upper rotation, lower rotation is shorted, bias executes cylinder, partially
Heart wedge block and power source, upper rotation are shorted to be shorted with lower rotation and be connected by shaft coupling, and power source is socketed in rotation and is shorted
On, power source is connected with the eccentric cylinder that executes, and bias execution cylinder is socketed in rotation short circuit and lower rotation is shorted, and lower rotation is shorted
Gap is provided between outer cylinder, eccentric wedge block is connected on eccentric execution cylinder, and it includes inner end, outer end and mistake that lower rotation, which is shorted,
Section is spent, outer cylinder is stretched out in outer end, and inner end is located in shaft coupling, and outer diameter is greater than inner end diameter, and transition is inclined-plane, and lower rotation is short
When connecing not eccentric, wedge block is in the gap between inner end and outer cylinder, and when lower rotation is shorted eccentric, wedge block is located at transition
In gap between outer cylinder.
The power source is hydraulic cylinder or cylinder, including cylinder body, piston and central tube, piston are located in cylinder body, center
Pipe is connected on piston, and central tube stretches out cylinder body and is connected with bias execution cylinder.
The outer cylinder and the contact position that upper rotation is shorted and lower rotation is shorted are mounted on rotary seal structure.
It is provided with rolling bearing structure on the contact surface that the wedge block and lower rotation are shorted, reduces wedge block and lower rotation
Frictional force between short circuit.
The bias executing agency further includes angle adjuster, which executes cylinder with bias and be connected, and is driven inclined
The heart executes cylinder rotation.
The bias executing agency further includes central controller and eccentric execution cylinder rotational angle detector, and bias executes cylinder
Rotational angle detector is connected with central controller, and the angle adjuster is connected with central controller, and the power source is in
Controller is entreated to be connected.When needing to carry out eccentric adjusting, central controller assigns angle adjustment order, angle to angle adjuster
After adjuster receives adjustment order, eccentric execution cylinder is rotated, bias executes cylinder rotational angle detector and bias is executed cylinder turn
Dynamic angle-data feeds back to central controller, and after rotational angle reaches set angle, central controller is to angle adjuster
Assign the order that stops operating, angle adjuster receive stop operating after order it is eccentric execute cylinder, then central controller is to power
Source issues release order, and piston pushes central tube, and central tube pushes angle adjuster, eccentric execution cylinder and wedge block to be rotated down
It is shorted direction movement, wedge block enters in the gap between transition and outer cylinder, deviates in original so that lower rotation is shorted
Heart line.When not needing bias, central controller is issued to power source retracts order, and piston retracts, and drives central tube, angle tune
Whole device and the eccentric cylinder that executes retract, and the gap that wedge block exits between transition and outer cylinder returns to the gap between inner end and outer cylinder
Interior, lower rotation is shorted self-return to the position of original center line.Bias executes cylinder rotational angle detector and uses angle sensor
Device.As long as angle adjuster can drive the eccentric cylinder that executes to rotate on upper rotation is shorted and lower rotation is shorted,
Purpose is that the lower rotation of adjustment is shorted eccentric position and direction.And wedge block is shorted eccentric movement for realizing lower rotation.
The present invention has the advantages that compared with the existing technology
1, the present invention is shorted including outer cylinder, upper rotation, lower rotation short circuit, bias execute cylinder, bias wedge block and power source, upper rotation
Turn to be shorted and be connected with lower rotation short circuit by shaft coupling, power source is socketed in rotation and is shorted, power source and eccentric execution cylinder
It is connected, bias execution cylinder is socketed in rotation short circuit and lower rotation is shorted, and lower rotation is shorted and is provided with gap between outer cylinder,
Eccentric wedge block is connected on eccentric execution cylinder, and it includes inner end, outer end and transition that lower rotation, which is shorted, and outer cylinder is stretched out in outer end, interior
End is located in shaft coupling, and outer diameter is greater than inner end diameter, and transition is inclined-plane, when lower rotation is shorted not eccentric, wedge block position
In gap between inner end and outer cylinder, when lower rotation is shorted eccentric, wedge block is in the gap between transition and outer cylinder.
The present invention by power source push it is eccentric execute cylinder, then the eccentric cylinder that executes pushes eccentric wedge block, and eccentric wedge block is to backspin
Turn to be shorted direction movement, be inserted into the gap between transition and outer cylinder, it is due to the effect of eccentric wedge block, lower rotation is short
Disalignment is connect, to realize the bias that lower rotation is shorted, changes the direction that lower rotation is shorted, is connected to what lower rotation was shorted
Drill bit can deviate from original direction, realize the change in drill bit direction, can regulate wedge block in advance as eccentric direction
Position, and the degree deviateed can be adjusted by the distance that wedge block moves.The eccentric machine provided through the invention
Structure can be very good to realize the change in drill bit direction, reach the requirement of directional well.
2, outer cylinder of the present invention and the contact position that upper rotation is shorted and lower rotation is shorted are mounted on rotary seal structure.It is logical
Rotary seal structure is crossed, the sealing for being rotated up and down short circuit and outer cylinder is realized, sundries is avoided to enter inside eccentric stiffener, is caused partially
The damage of concentric mechanism.
3, it is provided with rolling bearing structure on the contact surface that wedge block of the present invention and lower rotation are shorted, reduces wedge block under
Frictional force between rotation short circuit.The movement for being conducive to wedge block by rolling bearing structure mitigates the workload of power source,
The abrasion that also can be reduced lower rotation short circuit and wedge block simultaneously, prolongs its service life.
4, the eccentric executing agency of the present invention further includes angle adjuster, which executes cylinder with bias and be connected, band
The dynamic eccentric cylinder that executes rotates.The eccentric rotational angle for executing cylinder can be adjusted by the effect of angle adjuster, due to wedge block
It is connected on eccentric execution cylinder, this makes it possible to the positions for adjusting wedge block, also can be realized as the eccentric position that lower rotation is shorted
Set the adjusting with direction.
5, the eccentric executing agency of the present invention further includes central controller and eccentric execution cylinder rotational angle detector, and bias is held
Row cylinder rotational angle detector is connected with central controller, and the angle adjuster is connected with central controller, the power source
It is connected with central controller.By central controller and the eccentric effect for executing cylinder rotational angle detector, bias can be realized
The automatic adjustment and the eccentric mobile distance of cylinder that executes for executing cylinder rotation angle are adjusted, realize automatically eccentric position, direction and
The adjusting of degree.
Detailed description of the invention
Fig. 1 is the non-eccentric structure schematic diagram of overall structure of the present invention
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the structural schematic diagram after overall structure of the present invention is eccentric；
Fig. 4 is the side view of Fig. 3.
Appended drawing reference 1, outer cylinder, 2, upper rotation short circuit, 3, lower rotation short circuit, 4, shaft coupling, 5, hydraulic cylinder, 6, central tube,
7, piston, 8, eccentric execution cylinder, 9, wedge block, 10, angle adjuster, 11, bearing, 12, spherical axle sleeve.
Specific embodiment
The present invention will be further described with reference to the examples below, and described embodiment is only present invention a part
Embodiment is not whole embodiment.Based on the embodiments of the present invention, those skilled in the art are not making
Other embodiments used obtained, belong to protection scope of the present invention under the premise of creative work.
Embodiment 1
A kind of eccentric stiffener is present embodiments provided, effect is to realize the bias of drill bit.The mechanism is explained in detail below
It states.
The mechanism includes an outer cylinder 1, and outer cylinder 1 is provided with rotation and is shorted 2 and lower rotation short circuit 3, and upper rotation is shorted 2 Hes
Lower rotation is shorted 3 and is connected by shaft coupling 4, and the torque that upper rotation is shorted 2 is passed to lower rotation and is shorted 3.
Cylinder 8 is executed in the bias that fills on the whole for the composition that upper rotation is shorted 2, shaft coupling 4, lower rotation is shorted 3, it is eccentric
It executes cylinder 8 and connects a wedge block 9, executed in bias and fill an angle adjuster 10 on cylinder 8, turn for adjusting the eccentric cylinder that executes
Dynamic angle.It is shorted on 2 in upper rotation and loads onto a hydraulic cylinder 5, hydraulic cylinder and upper rotation are shorted 2 and are limited by bearing 11 upper
Rotation is shorted on 2, limits the axial movement of hydraulic cylinder 5.The direction from figure, hydraulic cylinder are located at the eccentric left side for executing cylinder, wedge shape
Block is located at the eccentric right side for executing cylinder.Hydraulic cylinder 5 includes cylinder body, piston 7, central tube 6, and central tube 6 stretches out cylinder body, central tube 6
One end is connected on piston 7, and the other end is connected to eccentric execute on cylinder.Rotation is shorted between 3 and outer cylinder 1 and is provided with gap, under
It includes inner end 30, outer end 31 and transition 32 that rotation, which is shorted 3, and outer cylinder is stretched out in outer end, and inner end is located in shaft coupling, and outer diameter is big
In inner end diameter, transition is inclined-plane, and when lower rotation is shorted not eccentric, wedge block is in the gap between inner end and outer cylinder,
When lower rotation is shorted eccentric, wedge block is in the gap between transition and outer cylinder.The inner end that lower rotation is shorted 3 passes through spherical shape
Axle sleeve 12 is mounted in shaft coupling 4.When needing bias, angle adjuster drives the eccentric cylinder that executes to rotate, and drives wedge block rotation,
After rotateing in place, eccentric execution cylinder (limitation is eccentric to execute cylinder rotation, but can be axially moved) is locked, starting hydraulic cylinder 5 is living
7 promotion central tubes 6 of plug, which are rotated down, is shorted 3 directions movement (in figure for right direction), and central tube 6 drives angle adjuster, partially
The heart executes cylinder and wedge block is rotated down is shorted direction movement together, and wedge block moves to the gap between transition and outer cylinder
It is interior, so that lower rotation is shorted disalignment, realize eccentric action.After not needing bias, the piston of hydraulic cylinder retract (in figure to
It is left) central tube drive angle adjuster, it is eccentric execute cylinder, wedge block is retracted, wedge block returns to the gap between inner end and outer cylinder
Interior, lower rotation short circuit is returned to position of center line and (can be shorted in lower rotation and install auto-strengthening machine with the junction of shaft coupling
Structure can be realized).Can not also self-return, staff take out adjust return after well can also be with.As for angle adjuster tune
The whole eccentric rotational angle for executing cylinder, when needing eccentric, the bias of the mechanism is executed the rotation of cylinder in well head by staff
Assembly installation is carried out after adjusting again, after going into the well, need to only control hydraulic cylinder.
Embodiment 2
The present embodiment on the basis of embodiment 1, pacify by the contact position that the outer cylinder is shorted with upper rotation and lower rotation is shorted
Equipped with rotary seal structure.
It is provided with rolling bearing structure on the contact surface that the wedge block and lower rotation are shorted, reduces wedge block and lower rotation
Frictional force between short circuit.
The bias executing agency further includes angle adjuster, which executes cylinder with bias and be connected, and is driven inclined
The heart executes cylinder rotation.
The bias executing agency further includes central controller and eccentric execution cylinder rotational angle detector, and bias executes cylinder
Rotational angle detector is connected with central controller, and the angle adjuster is connected with central controller, and the power source is in
Controller is entreated to be connected.When needing to carry out eccentric adjusting, central controller assigns angle adjustment order, angle to angle adjuster
After adjuster receives adjustment order, eccentric execution cylinder is rotated, bias executes cylinder rotational angle detector and bias is executed cylinder turn
Dynamic angle-data feeds back to central controller, and after rotational angle reaches set angle, central controller is to angle adjuster
Assign the order that stops operating, angle adjuster receive stop operating after order it is eccentric execute cylinder, then central controller is to power
Source issues release order, and piston pushes central tube, and central tube pushes angle adjuster, eccentric execution cylinder and wedge block to be rotated down
It is shorted direction movement, wedge block enters in the gap between transition and outer cylinder, deviates in original so that lower rotation is shorted
Heart line.When not needing bias, central controller is issued to power source retracts order, and piston retracts, and drives central tube, angle tune
Whole device and the eccentric cylinder that executes retract, and the gap that wedge block exits between transition and outer cylinder returns to the gap between inner end and outer cylinder
Interior, lower rotation is shorted self-return to the position of original center line.Bias executes cylinder rotational angle detector and uses angle sensor
Device.As long as angle adjuster can drive the eccentric cylinder that executes to rotate on upper rotation is shorted and lower rotation is shorted,
Purpose is that the lower rotation of adjustment is shorted eccentric position and direction.And wedge block is shorted eccentric movement for realizing lower rotation.This
Embodiment can realize the eccentric angle adjustment and the release and retract action of wedge block for executing cylinder in underground, more intelligently
Change, can adjust in real time whether eccentric and eccentric direction.
Claims (6)
1. it is a kind of bias executing agency, it is characterised in that: including outer cylinder, upper rotation be shorted, lower rotation be shorted, bias execution cylinder,
Eccentric wedge block and power source, upper rotation are shorted to be shorted with lower rotation and be connected by shaft coupling, and it is short that power source is socketed in rotation
It connects, power source is connected with the eccentric cylinder that executes, and bias execution cylinder is socketed in rotation short circuit and lower rotation is shorted, and lower rotation is short
Connect and be provided with gap between outer cylinder, eccentric wedge block be connected to it is eccentric execute on cylinder, lower rotation be shorted including inner end, outer end and
Outer cylinder is stretched out in transition, outer end, and inner end is located in shaft coupling, and outer diameter is greater than inner end diameter, and transition is inclined-plane, lower rotation
When being shorted not eccentric, wedge block is in the gap between inner end and outer cylinder, and when lower rotation is shorted eccentric, wedge block is located at excessive
In gap between section and outer cylinder.
2. a kind of eccentric executing agency according to claim 1, it is characterised in that: the power source is hydraulic cylinder or gas
Cylinder, including cylinder body, piston and central tube, piston are located in cylinder body, and central tube is connected on piston, central tube stretch out cylinder body and partially
The heart executes cylinder and is connected.
3. a kind of eccentric executing agency according to claim 1, it is characterised in that: the outer cylinder and upper rotation short circuit and under
The contact position that rotation is shorted is mounted on rotary seal structure.
4. a kind of eccentric executing agency according to claim 1, it is characterised in that: the wedge block is shorted with lower rotation
Rolling bearing structure is provided on contact surface.
5. a kind of eccentric executing agency according to claim 1, it is characterised in that: the bias executing agency further includes angle
Adjuster is spent, which executes cylinder with bias and be connected, and bias is driven to execute cylinder rotation.
6. a kind of eccentric executing agency according to claim 1, it is characterised in that: during the bias executing agency further includes
Controller and eccentric execution cylinder rotational angle detector are entreated, bias executes cylinder rotational angle detector and is connected with central controller,
The angle adjuster is connected with central controller, and the power source is connected with central controller, when needing to carry out eccentric adjusting
When, central controller assigns angle adjustment order to angle adjuster, and after angle adjuster receives adjustment order, rotation is eccentric
Cylinder is executed, bias executes cylinder rotational angle detector and the eccentric angle-data for executing cylinder rotation is fed back to central controller, when
After rotational angle reaches set angle, central controller assigns the order that stops operating to angle adjuster, and angle adjuster receives
Stop operating eccentric execution cylinder after order, and then central controller is issued to power source releases order, and piston pushes central tube, in
Heart pipe pushes angle adjuster, eccentric execution cylinder and wedge block to be rotated down and is shorted direction movement, and wedge block enters transition
In gap between outer cylinder so that lower rotation is shorted and deviates original center line, when not needing bias, central controller to
Power source, which issues, retracts order, and piston retracts, and drives central tube, angle adjuster and the eccentric cylinder that executes to retract, wedge block exits
Gap between transition and outer cylinder returns in the gap between inner end and outer cylinder, and lower rotation is shorted self-return to original center
The position of line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749138.4A CN110284836B (en) | 2019-08-14 | 2019-08-14 | Eccentric actuating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749138.4A CN110284836B (en) | 2019-08-14 | 2019-08-14 | Eccentric actuating mechanism |
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| Publication Number | Publication Date |
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| CN110284836A true CN110284836A (en) | 2019-09-27 |
| CN110284836B CN110284836B (en) | 2024-09-06 |
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|---|---|---|---|
| CN201910749138.4A Active CN110284836B (en) | 2019-08-14 | 2019-08-14 | Eccentric actuating mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305821A (en) * | 2020-03-27 | 2020-06-19 | 宏华油气工程技术服务（四川）有限公司 | Drilling directional angle difference measuring device and measuring method |
| CN117759162A (en) * | 2024-02-22 | 2024-03-26 | 成都希能能源科技有限公司 | Transmission device for directional drilling |
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| CN117759162B (en) * | 2024-02-22 | 2024-04-30 | 成都希能能源科技有限公司 | Transmission device for directional drilling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110284836B (en) | 2024-09-06 |
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