CN109555478A - Guide pipe - Google Patents
Guide pipe Download PDFInfo
- Publication number
- CN109555478A CN109555478A CN201811354041.5A CN201811354041A CN109555478A CN 109555478 A CN109555478 A CN 109555478A CN 201811354041 A CN201811354041 A CN 201811354041A CN 109555478 A CN109555478 A CN 109555478A
- Authority
- CN
- China
- Prior art keywords
- piston
- mandrel
- tube body
- guide pipe
- hydraulic fluid
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 24
- 210000002445 nipple Anatomy 0.000 claims abstract description 11
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 description 22
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000011160 research 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
Landscapes
- 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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention discloses a kind of guide pipe, including tube body, mandrel, top connection and lower contact, tube body is between top connection and lower contact, the observing and controlling pipe nipple being set on mandrel is equipped between tube body upper end and top connection, measurement and control instrument is equipped between observing and controlling pipe nipple and mandrel, tube body lower part is equipped at least three guide pads, guide pad is pushed by hydraulic system and is extended radially out along tube body, hydraulic system includes power assembly, piston assembly and hydraulic fluid chamber, power assembly includes at least three groups of Power Components, piston assembly includes at least three groups of piston components, piston component is located in mutually independent plunger shaft, hydraulic fluid chamber includes at least three mutually independent sub- hydraulic fluid chambers, piston component is driven by Power Component, sub- hydraulic fluid chamber lower end passes through hydraulic oil channel and is connected to cavity where the guide pad lower part.Guide pipe of the invention, structure is relatively easy, and manufacturing cost and maintenance cost are relatively low.
Description
Technical field
The present invention relates to rotary steerable drilling equipment technical field, more specifically a kind of guide pipe.
Background technique
With the continuous progress of science and technology, drilling well industry just rapidly develops.In order to further increase drilling efficiency and drop
Low drilling cost realizes that the automation of drilling process has become the research emphasis of current drilling field using advanced means.Mesh
Before be able to achieve the steering tool intelligently crept into mainly and have slide-and-guide well drilling tool and two kinds of rotary steerable drilling drilling tool.Sliding is led
To well drilling tool there are the frictional force between the borehole wall and drill string is big, tool-face is difficult to control equal shortcomings, especially in horizontal well, depth
In well and ultradeep well, disadvantage becomes apparent performance, has been unable to meet modern subterranean resource and explores to deep-well, ultradeep well, big
It is displaced the demand of the special wells such as well and horizontal well development, and rotary steerable drilling drilling tool is then avoided that these problems.
Rotary steering bottom hole assembly includes two kinds: pushing type rotary steering bottom hole assembly and directional type rotary steering bottom hole assembly, two kinds of rotations
Steering drilling tool includes rotary steering structure.Wherein, pushing type rotary steering bottom hole assembly is by leading in its rotary steering structure
The backup borehole wall is carried out to block is flexible, drill bit is made to obtain desired biasing guiding force.Directional type rotary steering bottom hole assembly is to pass through it
A set of biasing mechanism in rotary steering structure biases drilling tool rotation axis, to provide one and borehole axis for drill bit
Inconsistent inclination angle, so that drill bit obtains desired biasing guiding force.
However, the textural anomaly of the rotary steering structure of directional type rotary steering bottom hole assembly is complicated in the prior art, this rotation
The biasing mechanism for turning guide frame is made of one group of mutually nested Eccentric Circular Ring, and drilling tool is in the works such as vertical drilling and directional inclination
The process converted between condition is exactly substantially the changing process of Eccentric Circular Ring combination.And the group of Eccentric Circular Ring
The change of conjunction mode then needs the automatic control system by being implanted to a large amount of electrical component and Hydraulic Elements composition in drilling tool
It realizes.Therefore, the manufacturing cost of the rotary steering structure of directional type rotary steering bottom hole assembly and maintenance cost are higher.
Summary of the invention
The purpose of the present invention is to provide the rotary steering structure of a kind of guide pipe namely rotary steering bottom hole assembly, structures
Relatively easy, manufacturing cost and maintenance cost are relatively low.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of guide pipe, the mandrel including tube body and with the tube body coaxial line, the mandrel upper end be fixedly connected with top connection,
The mandrel lower end is connected with lower contact, and the tube body is between the top connection and the lower contact, the mandrel
Inside be equipped with axially through central passage, between the tube body upper end and the top connection be equipped be arranged on the mandrel
Observing and controlling pipe nipple, is equipped with measurement and control instrument between the observing and controlling pipe nipple and the mandrel, the tube body lower part is equipped at least three and surrounds
The guide pad that the mandrel is arranged circumferentially, the guide pad are pushed by hydraulic system and are extended radially out along the tube body.It is described
Hydraulic system is located in the middle part of the tube body between the mandrel, and the hydraulic system includes the power being sequentially arranged from top to bottom
Assembly, piston assembly and hydraulic fluid chamber, the power assembly include at least three groups and move around what the mandrel was arranged circumferentially
Power component, the piston assembly include at least three groups piston components being arranged circumferentially around the mandrel, the piston group
Part is located in mutually independent plunger shaft, and the hydraulic fluid chamber includes at least three being arranged circumferentially and phase around the mandrel
Mutual independent sub- hydraulic fluid chamber, the Power Component, the piston component are corresponding with the quantity of the sub- hydraulic fluid chamber three
And position is corresponding, the piston component is mobile by the axis direction that the Power Component drives edge is parallel to the mandrel, institute
It states sub- hydraulic fluid chamber upper end to be connected to the plunger shaft lower end, the sub- hydraulic fluid chamber lower end passes through hydraulic oil channel and institute
Cavity connection, the hydraulic oil channel are parallel to the axis of the mandrel where stating guide pad lower part.
The Power Component includes motor and the ball-screw that is driven by motor, and the motor is located at the ball-screw
Top, the ball-screw include screw rod and nut, and the screw rod is parallel to the axis of the mandrel.
The motor is sequentially connected by shaft coupling and the screw rod upper end.
The piston component includes upper piston, lower piston and the piston rod being fixed between the upper piston, lower piston, institute
It states upper piston and lower piston and radially arranges that the piston rod is parallel to the axis of the mandrel along the tube body.
The screw rod upper end is supported by upper support seat, lower end is supported by lower support base, the nut with
The piston is fixedly connected.
It is fixedly connected between the nut and the upper piston by more connecting rods, the connecting rod is around described
Mandrel be arranged circumferentially and the connecting rod each parallel to the mandrel axis.
Sealing ring is arranged on the upper piston and lower piston.
The mandrel upper end is arranged with upper bearing (metal) group on the inside of the observing and controlling pipe nipple, lower end is arranged with positioned at the pipe
Intracorporal lower bearing group.
The guide pad lower part is arranged with spring.
The guide pad top is arranged with sealing ring.
Beneficial effects of the present invention are as follows:
One, the configuration of the present invention is simple, manufacturing cost and maintenance cost are relatively low, and relatively to the control precision of wellbore
It is high；
Two, Power Component driving piston component of the invention is moved along the axis direction for being parallel to mandrel, and piston component is to moving down
When dynamic, the hydraulic oil in sub- hydraulic fluid chamber can be compressed, and then generate high pressure oil, under the action of high pressure oil, guide pad is along pipe
Body extends radially out, and the control of guide pad is convenient in such design；
Three, Power Component of the invention includes motor and ball-screw, and ball-screw-transmission is relatively steady, and then makes guide pad edge
It is more steady when tube body extends radially out；
Four, piston component of the invention includes upper piston, lower piston and the piston rod being fixed between upper piston, lower piston, this
The piston assembly structure of sample is relatively stable, and mobile comparison is steady；
Five, be fixedly connected between nut and upper piston of the invention by more connecting rods, connecting rod convenient for nut with it is upper
The connection and disassembly of piston.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 be in Fig. 1 along A-A to cross-section diagram；
Fig. 3 be in Fig. 1 along B-B to cross-section diagram；
Fig. 4 be in Fig. 1 along C-C to cross-section diagram；
Fig. 5 be in Fig. 1 along D-D to cross-section diagram.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.It should be clear that structure depicted in this specification attached drawing,
Ratio, size etc., only to cooperate the revealed content of specification, so that those skilled in the art understands and reads, and
Non- therefore not have technical essential meaning to limit the enforceable qualifications of the present invention, the modification of any structure, ratio are closed
The change of system or the adjustment of size should all still be fallen in the case where not influencing the effect of present invention can be generated and the purpose that can reach
In the range of disclosed technology contents can be covered.Meanwhile in this specification it is cited as "upper", "lower",
The term of "left", "right", " centre " and " one " etc. is merely convenient to being illustrated for narration, rather than implementable to limit the present invention
Range, relativeness is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable model of the present invention
Farmland.
As shown in Figures 1 to 5, a kind of guide pipe, the mandrel 1 including tube body 4 and with 4 coaxial line of tube body, on the mandrel 1
End is fixedly connected with top connection 2,1 lower end of the mandrel is connected with lower contact 3.The tube body 4 be located at the top connection 2 with
Between the lower contact 3, inside the mandrel 1 be equipped with axially through central passage 5,4 upper end of tube body with it is described on connect
It is equipped with the observing and controlling pipe nipple 6 being set on the mandrel 1 between first 2, observing and controlling is equipped between the observing and controlling pipe nipple 6 and the mandrel 1
Instrument 7, measurement and control instrument 7 is for measuring the parameters such as hole deviation needed for rotary steerable drilling process, orientation.4 lower part of tube body
The guide pad 8 being arranged circumferentially equipped at least three around the mandrel 1, the guide pad 8 are pushed by hydraulic system along institute
Tube body 4 is stated to extend radially out.The hydraulic system is located between 4 middle part of tube body and the mandrel 1, and the hydraulic system includes
Power assembly, piston assembly and the hydraulic fluid chamber being sequentially arranged from top to bottom.The power assembly includes at least three groups and surrounds institute
The Power Component that mandrel 1 is arranged circumferentially is stated, the piston assembly includes at least three groups around the circumferential uniform cloth of the mandrel 1
The piston component set, the piston component are located in mutually independent plunger shaft, and the hydraulic fluid chamber is surrounded including at least three
The mandrel 1 is arranged circumferentially and mutually independent sub- hydraulic fluid chamber 9, the Power Component, the piston component with it is described
The quantity of sub- 9 three of hydraulic fluid chamber is corresponding and position is corresponding.The piston component is parallel by the Power Component drives edge
Mobile in the axis direction of the mandrel 1, sub- 9 upper end of hydraulic fluid chamber is connected to the plunger shaft lower end, the sub- liquid
9 lower end of pumping cavity passes through hydraulic oil channel 10 and is connected to cavity where 8 lower part of guide pad, and the hydraulic oil channel 10 is flat
Row is in the axis of the mandrel 1.
The Power Component includes motor 11 and the ball-screw that is driven by motor 11, and ball-screw-transmission is relatively steady.
The measurement and control instrument 7 is connected with the motor 11 control, and the motor 11 is located at the top of the ball-screw.The ball wire
Thick stick includes screw rod 12 and nut 13, and the screw rod 12 is parallel to the axis of the mandrel 1.
The motor 11 is sequentially connected by shaft coupling 14 and 12 upper end of screw rod.
The piston component includes upper piston 15, lower piston 16 and is fixed between the upper piston 15, lower piston 16
Along the radial arrangement of the tube body 4, the piston rod 17 is parallel to the core for piston rod 17, the upper piston 15 and lower piston 16
The axis of axis 1.Such piston assembly structure is relatively stable, and mobile comparison is steady.
12 upper end of screw rod is described by the way that upper support seat 18 is supported, lower end is supported by lower support base 19
Nut 13 is fixedly connected with the piston.Upper support seat 18 and lower support base 19 improve the stability of ball-screw.
It is fixedly connected between the nut 13 and the upper piston 15 by more connecting rods 20, the connecting rod 20
Be arranged circumferentially around the mandrel 1 and the connecting rod 20 each parallel to the mandrel 1 axis.Connecting rod 20 is convenient for spiral shell
The connection and disassembly of mother 13 and upper piston 15.
Sealing ring (not shown) is arranged on the upper piston 15 and lower piston 16, sealing ring improves piston group
Leakproofness between part and plunger shaft.
1 upper end of mandrel is arranged with the upper bearing (metal) group 21 positioned at 6 inside of observing and controlling pipe nipple, lower end is arranged with positioned at institute
State the lower bearing group 22 in tube body 4.
8 lower part of guide pad is arranged with spring 23.
8 top of guide pad is arranged with sealing ring 24, and sealing ring 24 improves the sealing between guide pad 8 and tube body 4
Property.
In actual use, 2 upper end of top connection connects drilling tool, and lower contact 3 connects drill bit, and drilling fluid is from 1 central passage 5 of mandrel
It flows through.Measurement and control instrument 7 issues corresponding control for measuring the parameters such as hole deviation needed for rotary steerable drilling process, orientation
To corresponding motor 11, motor 11 is rotated forward for system instruction, and under the action of lead screw, nut 13 drives piston component to move down and press
Contracting hydraulic oil generates high pressure oil, and high pressure oil enters corresponding 8 lower part of guide pad place cavity by hydraulic oil channel 10,
Under the action of high pressure oil, guide pad 8 is extended radially out along tube body 4, the 8 backup borehole wall of guide pad, is specified to generate one to drill bit
The lateral cutting component in direction, to realize the function of steerable drilling.When needing to stop working, motor 11 is inverted, in lead screw
Under the action of, nut 13 drives piston component to move up, 8 lower part of guide pad hydraulic oil in the cavity to sub- hydraulic fluid chamber
9 reflux, under the action of spring 23, guide pad 8 is retracted.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. guide pipe, the mandrel including tube body and with the tube body coaxial line, the mandrel upper end is fixedly connected with top connection, institute
It states mandrel lower end and is connected with lower contact, the tube body is between the top connection and the lower contact, in the mandrel
Portion be equipped with axially through central passage, be equipped between the tube body upper end and the top connection and be arranged survey on the mandrel
Pipe nipple is controlled, measurement and control instrument is equipped between the observing and controlling pipe nipple and the mandrel, the tube body lower part is equipped at least three and surrounds institute
The guide pad that mandrel is arranged circumferentially is stated, the guide pad is pushed by hydraulic system and extended radially out along the tube body, feature
Be: the hydraulic system is located in the middle part of the tube body between the mandrel, and the hydraulic system includes from top to bottom successively
Power assembly, piston assembly and the hydraulic fluid chamber of arrangement, the power assembly include at least three groups circumferentially equal around the mandrel
The Power Component of even arrangement, the piston assembly include at least three groups piston components being arranged circumferentially around the mandrel,
The piston component is located in mutually independent plunger shaft, and the hydraulic fluid chamber includes at least three circumferentially equal around the mandrel
Even arrangement and mutually independent sub- hydraulic fluid chamber, the Power Component, the piston component are with the sub- hydraulic fluid chamber three's
Quantity is corresponding and position is corresponding, and the piston component is parallel to the axis side of the mandrel by the Power Component drives edge
To movement, the sub- hydraulic fluid chamber upper end is connected to the plunger shaft lower end, and the sub- hydraulic fluid chamber lower end passes through hydraulic
Oily channel is connected to cavity where the guide pad lower part, and the hydraulic oil channel is parallel to the axis of the mandrel.
2. guide pipe according to claim 1, it is characterised in that: the Power Component includes motor and is driven by motor
Ball-screw, the motor are located at the top of the ball-screw, and the ball-screw includes screw rod and nut, and the screw rod is flat
Row is in the axis of the mandrel.
3. guide pipe according to claim 2, it is characterised in that: the motor is passed by shaft coupling and the screw rod upper end
Dynamic connection.
4. guide pipe according to claim 2, it is characterised in that: the piston component includes upper piston, lower piston and consolidates
The piston rod being scheduled between the upper piston, lower piston, the upper piston and lower piston are radially arranged along the tube body, described
Piston rod is parallel to the axis of the mandrel.
5. guide pipe according to claim 4, it is characterised in that: the screw rod upper end is supported by upper support seat,
Lower end is supported by lower support base, and the nut is fixedly connected with the piston.
6. guide pipe according to claim 5, it is characterised in that: pass through more companies between the nut and the upper piston
Extension bar is fixedly connected, and the connecting rod is arranged circumferentially around the mandrel and the connecting rod is each parallel to the core
The axis of axis.
7. guide pipe according to claim 6, it is characterised in that: be arranged with sealing on the upper piston and lower piston
Ring.
8. guide pipe according to claim 1, it is characterised in that: the mandrel upper end is arranged with positioned at the observing and controlling pipe nipple
The upper bearing (metal) group of inside, lower end are arranged with positioned at the intracorporal lower bearing group of the pipe.
9. guide pipe according to claim 1, it is characterised in that: the guide pad lower part is arranged with spring.
10. guide pipe according to claim 9, it is characterised in that: the guide pad top is arranged with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354041.5A CN109555478A (en) | 2018-11-14 | 2018-11-14 | Guide pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354041.5A CN109555478A (en) | 2018-11-14 | 2018-11-14 | Guide pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109555478A true CN109555478A (en) | 2019-04-02 |
Family
ID=65866338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811354041.5A Pending CN109555478A (en) | 2018-11-14 | 2018-11-14 | Guide pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109555478A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306360A (en) * | 2022-09-20 | 2022-11-08 | 西安石油大学 | Eccentric intelligent water distributor of measurement and control integrated water injection well |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202031525U (en) * | 2011-04-28 | 2011-11-09 | 中国石油化工股份有限公司 | Hydraulic pressure delivery device of horizontal well |
| CN202176330U (en) * | 2011-08-12 | 2012-03-28 | 李秀文 | Hydraulic power device for stratum fluid sampling tools |
| CN202220554U (en) * | 2011-08-31 | 2012-05-16 | 中国石油化工股份有限公司 | Inclined disk plunger type rotary guide well-drilling tool |
| CN102926740A (en) * | 2012-11-15 | 2013-02-13 | 中国石油天然气股份有限公司 | Hydraulic sidewall contact device for through casing resistivity logger |
| CN205713975U (en) * | 2016-01-15 | 2016-11-23 | 中国石油大学(华东) | Biasing rotary guide offset instrument in mechanical type |
-
2018
- 2018-11-14 CN CN201811354041.5A patent/CN109555478A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202031525U (en) * | 2011-04-28 | 2011-11-09 | 中国石油化工股份有限公司 | Hydraulic pressure delivery device of horizontal well |
| CN202176330U (en) * | 2011-08-12 | 2012-03-28 | 李秀文 | Hydraulic power device for stratum fluid sampling tools |
| CN202220554U (en) * | 2011-08-31 | 2012-05-16 | 中国石油化工股份有限公司 | Inclined disk plunger type rotary guide well-drilling tool |
| CN102926740A (en) * | 2012-11-15 | 2013-02-13 | 中国石油天然气股份有限公司 | Hydraulic sidewall contact device for through casing resistivity logger |
| CN205713975U (en) * | 2016-01-15 | 2016-11-23 | 中国石油大学(华东) | Biasing rotary guide offset instrument in mechanical type |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306360A (en) * | 2022-09-20 | 2022-11-08 | 西安石油大学 | Eccentric intelligent water distributor of measurement and control integrated water injection well |
| CN115306360B (en) * | 2022-09-20 | 2024-04-30 | 西安石油大学 | Measurement and control integrated water injection well eccentric intelligent water distributor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190402 |