CN205047155U - Poppet valve control mechanical type static state down pushes away by automatic perpendicular drilling system - Google Patents
Poppet valve control mechanical type static state down pushes away by automatic perpendicular drilling system Download PDFInfo
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- CN205047155U CN205047155U CN201520728448.5U CN201520728448U CN205047155U CN 205047155 U CN205047155 U CN 205047155U CN 201520728448 U CN201520728448 U CN 201520728448U CN 205047155 U CN205047155 U CN 205047155U
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Abstract
The utility model discloses a poppet valve control mechanical type static state down pushes away by automatic perpendicular drilling system, including the uide bushing, the lower part of uide bushing is equipped with guide structure, and guide structure passes through actuating mechanism and drives, be equipped with main shaft and eccentric block in the uide bushing, the cover is equipped with the bearing on the main shaft, and the eccentric block is fixed on the bearing, it switches on to first runner and at least three the second runners that switch on outside the uide bushing of actuating mechanism from the drilling fluid runner to be provided with drilling fluid runner, at least three in the uide bushing, still be equipped with valve structure on the bearing, the eccentric block can drive valve structure when rotating rotatory, and the part that valve structure lies in eccentric block place one side can make the first runner of this side and drilling fluid runner block, only makes first runner and second runner switch on, and valve structure can seal the second runner of this side with the part of the relative one side of eccentric block, only makes first runner and drilling fluid runner intercommunication.
Description
Technical field
The utility model relates to drilling equipment field, and particularly a kind of moushroom valve controls lower mechanical type static backup automatic vertical drilling system.
Background technology
At present, the important means that drilling project is explored as resources and environment, its research field just extends to polar region, ocean from traditional earth's surface, and Earth, marine bottom.The important means that deep drilling will be Earth detection, also be the unique method obtaining Earth material object, but in deep drilling process, how keep well to be vertically a great problem, the problem of hole deviation will directly restrict rate of penetration and drilling quality, or even the success or failure of whole drilling project.Make well depth reach 6400 meters as Pinaceae two well, along with the continuous increase of well depth, hole deviation problem will be further outstanding, endanger further serious.
Many drilling projects such as former Soviet Union Kola ultradeep well (design hole termination depth 15000m, actual hole termination depth 12262m) and German KTB main aperture (design hole termination depth 10000m, actual hole termination depth 9101m) are forced to whole hole in advance because hole deviation is uncontrollable.In order to solve this difficult problem, a large amount of theory analysises and field practice are carried out both at home and abroad, in succession propose the anti-oblique methods such as rigidity packed hole assembly, pendulum way-type drilling unit, off-axis drilling tool, but these methods are all sacrifice the pressure of the drill, reduce the passive anti-oblique mode that rate of penetration exchanges anti-oblique effect for, effect is also not obvious, and even some stratum does not reach the effect of anti-oblique well straightening completely.Especially, in the drilling operation of deep hole and superdeep holes, passive anti-oblique method limited success, the engineering time proportion for well straightening is also very large.
The appearance of automatic vertical drilling and rotary steerable drilling system, for anti-oblique well straightening brings major technological breakthrough, that a kind of mechanical electronic hydraulic that collects is in the downhole intelligent closed loop NDS of integration, down-hole initiatively anti-oblique well straightening can be realized, do not need human intervention and from the predetermined well track of motion tracking, successfully can solve an anti-oblique well straightening difficult problem for high-dip structure, high inclination-angle bad ground, while guarantee hole quality, release the pressure of the drill, improves rate of penetration.The most important prerequisite that Germany KTB engineering main aperture reaches hole termination depth successfully implements vertically to creep into strategy, automatic vertical drilling system (VDS) successful Application developed is to the hole depth scope of 7500m, make the boring that KTB becomes the most vertical in the world at that time, and successfully limit grinding load and moment of torsion, creep into for the later stage implements small―gap suture the prerequisite providing necessity with sleeve pipe strategy.The development of automatic vertical drilling system has driven the progress of rotary steering technology further, the anti-oblique technical research of active is carried out so far abroad from the eighties in 20th century, more than 10 companies have been had to define respective rotary steering system, and having carried out field trial and application, it is without exception all with vertically creeping into function.At present, there is the main of commercial applications ability or BakerHughes, Schlumberger and Halliburton tri-company.
Current static pushing type automatic vertical drilling system mainly comprises one and is arranged on outside relative to the fairlead do not rotated, fairlead bottom is used for external drill bit, gravitational accelerometer is provided with in fairlead, for responding to hole deviation, the bottom of fairlead is provided with by hydraulically powered guide pad, when sensing hole deviation, signal is sent to the microprocessor in fairlead, hydraulic control system, thus make that guide pad is outstanding laterally withstands on well inwall, to play the effect correcting hole deviation.But there are the following problems for existing above-mentioned automatic vertical drilling system:
The first, for driving the fluid power system of guide pad to need the independently mechanism such as hydraulic pump, complex structure, makes the oversize of fairlead, cannot be applied to creeping into of minor diameter well head.
The second, undesirable to the calibration result of hole deviation, there is larger error, applicant finds through a large amount of engineering test, causes one of reason of this error to be because guide block structure design is unreasonable, can not play guide effect comprehensively, accurately, stably.
3rd, the sensors such as gravitational accelerometer belong to electronic device, by the restriction of downhole temperature, cannot use in the well of temperature higher than 120 DEG C.
In view of this, special proposition the utility model.
Utility model content
The purpose of this utility model is to provide a kind of moushroom valve and controls lower mechanical type static backup automatic vertical drilling system.
To achieve these goals, a kind of moushroom valve that the utility model provides controls lower mechanical type static backup automatic vertical drilling system, and comprise fairlead, the bottom of fairlead is provided with guide frame, and guide frame is driven by driving mechanism,
Be provided with main shaft and eccentric block in described fairlead, main shaft is arranged with bearing, eccentric block is fixed on bearing;
Be provided with in fairlead drilling fluid runner, at least three from the conducting of drilling fluid runner to the first flow of driving mechanism and at least three conductings to the second runner outside fairlead;
Described bearing is also provided with valve mechanism, eccentric block can drive valve mechanism to rotate when rotating, the part that valve mechanism is positioned at eccentric block side can make the first flow of this side and drilling fluid runner block, only make first flow and the second runner conducting, the part of valve mechanism side relative to eccentric block can close the second runner of this side, only makes first flow and drilling fluid flow passage.
Preferably, described valve mechanism comprises
Be arranged on the disc between first flow and drilling fluid runner, make first flow and the conducting of drilling fluid runner by the runner hole on disc; And
The arc valve block of homonymy is arranged on described eccentric block, for the runner hole that the first flow covering in this side is corresponding, relief hole is provided with, relief hole one end and first flow conducting, the second runner conducting of the other end and eccentric block side in the lamellar body of arc valve block; And
Be arranged on the annular catch of arc valve block relative to side, for blocking the conducting of this side second runner and drilling fluid runner.
More preferably, described disc is provided with the arcuate furrow identical with first flow quantity, bottom land conducting to runner hole of one end of per pass arcuate furrow.
Preferably, described guide frame comprises guide pad, and driving mechanism can make guide pad move along the radial expansion of fairlead.
More preferably, described driving mechanism comprises the base being arranged on fairlead bottom, the side of base is provided with plunger shaft, the piston that can move radially along fairlead is provided with in plunger shaft, piston can promote described guide pad when the direction away from base is moved, and plunger shaft is communicated with described first flow, and first flow is away from one end of plunger shaft and described drilling fluid flow passage, second runner one end is communicated to drilling fluid runner, and the other end is communicated to fairlead outside.
More preferably, described valve mechanism at relative side conducting three first flows of eccentric block position, thus makes three guide pads stretch out.
Further, described guide pad comprises 4 the first guide pads and 4 the second guide pads, first guide pad and the second guide pad all along the circumference of fairlead be spaced apart, stagger mutually in the position of the first guide pad and the second guide pad, two the second guide pads that each first guide pad is adjacent form Triangle-Profile.
Again further, the first guide pad and the second guide pad all along the circumference of fairlead in being spacedly distributed.
Preferably, described bearing comprises upper bearing (metal) and lower bearing, and the upper end of the block of described bias is fixed on upper bearing (metal), and the lower end of eccentric block is fixed on lower bearing, and described arc valve block and annular catch are fixed on the bottom of lower bearing.
A kind of moushroom valve that the utility model provides controls lower mechanical type static backup automatic vertical drilling system, has following beneficial effect:
(1) the moushroom valve structure adopting eccentric block and disc, arc valve block, annular catch to form controls the flexible of guide pad, only relates to frame for movement, compared with the electronic device such as gyroscope, gravitational accelerometer, does not affect by downhole temperature.
(2) adopt dynamic push reclining automatic vertical drilling control principle, but make use of liquid difference inside and outside drilling fluid and, as power resources, decrease the structure member of system, be applicable in the automatic vertical drilling of minor diameter;
(3) guiding executing agency have employed the Distributed Design of 8 guide pads, increases thrust, improves control accuracy, and when guide pad is released, forms three-point support structure, improve stability.
Accompanying drawing explanation
Fig. 1 is the main sectional view that moushroom valve provided by the utility model controls lower mechanical type static backup automatic vertical drilling system;
Fig. 2 is the close-up schematic view that moushroom valve controls the lower static backup automatic vertical drilling system drive mechanism of mechanical type and valve mechanism;
Fig. 3 is the plan structure schematic diagram of disc;
Fig. 4 is the plan structure schematic diagram of arc valve block and annular catch;
Fig. 5 is the structural representation of relief hole position;
Fig. 6 is the sectional perspective structural representation of guide frame base portion;
Distribution map is launched in the side that Fig. 7 is guide pad;
In figure:
1. fairlead 2. drilling rod 3. drilling fluid runner 4. upper bearing (metal) 5. lower bearing 6. eccentric block 7. base 8. guide pad 9. plunger shaft 10. piston 11. first flow 12. second runner 13. arc valve block 14. annular catch 15. disc 16. runner hole 17. relief hole 18. arcuate furrow 81. first guide pad 82. second guide pad
Detailed description of the invention
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Terminological interpretation:
Gravity flash and gravitational low limit: in the plane of instrument axis direction line and gravimetric plumb line composition, the limit at instrument place is gravity flash, and differing 180 ° is gravitational low limit.
Please refer to Fig. 1-6, a kind of moushroom valve that the utility model provides controls lower mechanical type static backup automatic vertical drilling system, comprises fairlead 1, drilling rod 2 is set in fairlead 1, the lower end of drilling rod 2 connects drill bit, and fairlead 1, at outside geo-stationary, does not rotate with drilling rod 2.In fairlead 1 inside, drilling fluid runner 3 is set, for the drilling fluid of the well system that circulates.Using drilling rod 2 as main shaft, at the main shaft upper and lower sheathed upper bearing (metal) 4 of difference and lower bearing 5, eccentric block 6 is provided with between fairlead 1 inwall, the two ends of eccentric block 6 are separately fixed on upper bearing (metal) 4 and lower bearing 5, when well system run-off the straight, eccentric block 6 can with main shaft (drilling rod 2) for axle, along the rotational slide of fairlead 1 inwall to gravitational low limit.
Guide frame is provided with in the lower end of fairlead 1, guide frame comprises the base 7 that an entirety is column, to distribute multiple guide pad 8 along the circumference of base 7 outside base 7, base 7 is provided with the driving mechanism driving guide pad 8 to move along fairlead 1 radial expansion, fairlead 1 is also provided with the opening corresponding with guide pad 8 position, guide pad 8 can be stretched out from opening part.In the present embodiment, the quantity of guide pad 8 is 8, is divided into two groups, and often organize 4, each guide pad in first group of guide pad is called that each guide pad in the first guide pad 81, second group of guide pad is called the second guide pad 82.First group of guide pad is in distributing along the circumference of base at equal intervals, second group of guide pad is positioned at the bottom of first group of guide pad, also distribute along base in circumferential at equal intervals, but the position of each guiding and the position of the first guide pad are spaced from each other in second group of guiding, like this, each guide pad in first group of guide pad, the guide pad in second group of guide pad that can both be adjacent forms leg-of-mutton distribution.
For drive the driving mechanism of guide pad 8 comprise from base side depression go down formed plunger shaft 9, piston 10 is provided with in plunger shaft 9, quantity and position corresponding with each guide pad 8, to promote each guide pad 8, relative set back-moving spring (not marking in figure) inside guide pad 8, each piston 10 is connected to a first flow 11 away from one end of guide pad 8.First flow 11 away from one end conducting of plunger shaft 9 to drilling fluid runner 3.In fairlead 1, be also provided with one end and drilling fluid runner 3 conducting of the second runner 12, second runner 12, the other end is communicated to the outside of fairlead 1.
Be fixed with the arc valve block 13 of surface for arc in the lower end of lower bearing 5, the two ends of arc valve block 13 extend along lower bearing 5, are formed and the integrated annular catch 14 of arc valve block 13.Annular catch 14 is provided with disc 15 with the below of arc valve block 13, disc 15 offers multiple runner hole 16, each runner hole 16 all with together with first flow 11 be communicated with.Arc valve block 13 and eccentric block 6 homonymy are arranged, when eccentric block 6 forwards gravitational low limit to, arc valve block 13 also together forwards gravitational low limit to, shelter from 5 runner holes 16 of this side, block the conducting of first flow 11 and drilling fluid runner 3, in the lamellar body of arc valve block 13, be provided with relief hole 17, one end of relief hole 17 is along the downward conducting of lamellar body of arc valve block 13 to first flow 11, and the other end is along fairlead 1 radially outward side conducting to the second runner 12 of eccentric block 6 side.If originally flowed into drilling fluid in first flow 11, can, through the second runner 12 pressure release under inside and outside differential pressure, originally outstanding guide pad 8 be resetted under the effect of back-moving spring.In the side relative with eccentric block 6 position, annular catch 14 is by the second runner 12 shutoff of this side, prevent itself and drilling fluid runner 3 conducting, space simultaneously between annular catch 14 and arc valve block 13 makes 3 first flows and drilling fluid runner 3 conducting of this side, thus guide pad 8 is released by drilling fluid inflow first flow 11.
Disc 15 is provided with the arcuate furrow 18 identical with first flow 11 quantity, and per pass arcuate furrow 18 is all positioned on each concentric circles of disc 15, and adjacent twice groove shares a cell wall, make use of the space of disc 15 to greatest extent.The bottom land of every one arcuate furrow 18 end is all communicated to the runner hole 16 of a first flow 11.When eccentric block 6 forwards gravitational low limit to, first flow 11 and drilling fluid runner 3 conducting of gravity flash, drilling fluid can flow into first flow 11 along arcuate furrow 18, plays good water conservancy diversion effect, improves the speed to introduce of guide frame.
During work, fairlead 1 together with drill bit along with whole well system creeps into, when drilling tool run-off the straight, eccentric block 6 rotational slide is to gravitational low limit, now annular catch 14 is positioned at gravity flash, being communicated with of the second runner 12 and drilling fluid runner 3 can be blocked, and make first flow 11 and drilling fluid runner 3 conducting.Drilling fluid flows into three first flows 11 being positioned at gravity flash automatically, wherein first flow is communicated to the plunger shaft 9 of the first guide pad 81 correspondence, two other first flow is communicated to plunger shaft corresponding to two second guide pad 82 adjacent with the first guide pad 81, first guide pad 81 promoting gravity flash by plunger shaft 9 inner carrier 10 and two the second guide pads 82 be adjacent, form triangular support structure and be supported on well inwall, because triangular support structure supporting surface is large, also large to the coverage rate of well inwall, correct the effect of hole deviation more accurately comprehensively, and leg-of-mutton braced structures is also more reliable and more stable.Simultaneously, arc valve block 13 is positioned at gravitational low limit, the conducting of first flow 11 and drilling fluid runner 3 can be blocked, first flow 11 can also be made by relief hole 16 and the second runner 12 conducting, now originally be present in the drilling fluid in this side first flow 11, fairlead 1 pressure release can be flowed out because of inside and outside differential pressure along the second runner 12, keep retraction state to make the guide pad 8 of this side regain.
Control lower mechanical type static backup automatic vertical drilling system to a kind of moushroom valve provided by the utility model to be above described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands core concept of the present utility model for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (9)
1. moushroom valve controls a lower mechanical type static backup automatic vertical drilling system, and comprise fairlead, the bottom of fairlead is provided with guide frame, and guide frame is driven by driving mechanism, it is characterized in that,
Be provided with main shaft and eccentric block in described fairlead, main shaft is arranged with bearing, eccentric block is fixed on bearing;
Be provided with in fairlead drilling fluid runner, at least three from the conducting of drilling fluid runner to the first flow of driving mechanism and at least three conductings to the second runner outside fairlead;
Described bearing is also provided with valve mechanism, eccentric block can drive valve mechanism to rotate when rotating, the part that valve mechanism is positioned at eccentric block side can make the first flow of this side and drilling fluid runner block, only make first flow and the second runner conducting, the part of valve mechanism side relative to eccentric block can close the second runner of this side, only makes first flow and drilling fluid flow passage.
2. a kind of moushroom valve according to claim 1 controls lower mechanical type static backup automatic vertical drilling system, and it is characterized in that, described valve mechanism comprises
Be arranged on the disc between first flow and drilling fluid runner, make first flow and the conducting of drilling fluid runner by the runner hole on disc; And
The arc valve block of homonymy is arranged on described eccentric block, for the runner hole that the first flow covering in this side is corresponding, relief hole is provided with, relief hole one end and first flow conducting, the second runner conducting of the other end and eccentric block side in the lamellar body of arc valve block; And
Be arranged on the annular catch of arc valve block relative to side, for blocking the conducting of this side second runner and drilling fluid runner.
3. a kind of moushroom valve according to claim 2 controls lower mechanical type static backup automatic vertical drilling system, it is characterized in that, described disc is provided with the arcuate furrow identical with first flow quantity, bottom land conducting to runner hole of one end of per pass arcuate furrow.
4. a kind of moushroom valve according to claim 1 controls lower mechanical type static backup automatic vertical drilling system, and it is characterized in that, described guide frame comprises guide pad, and driving mechanism can make guide pad move along the radial expansion of fairlead.
5. a kind of moushroom valve according to claim 4 controls lower mechanical type static backup automatic vertical drilling system, it is characterized in that, described driving mechanism comprises the base being arranged on fairlead bottom, the side of base is provided with plunger shaft, the piston that can move radially along fairlead is provided with in plunger shaft, piston can promote described guide pad when the direction away from base is moved, plunger shaft is communicated with described first flow, first flow is away from one end of plunger shaft and described drilling fluid flow passage, second runner one end is communicated to drilling fluid runner, the other end is communicated to fairlead outside.
6. a kind of moushroom valve according to claim 5 controls lower mechanical type static backup automatic vertical drilling system, and it is characterized in that, described valve mechanism at relative side conducting three first flows of eccentric block position, thus makes three guide pads stretch out.
7. a kind of moushroom valve according to claim 6 controls lower mechanical type static backup automatic vertical drilling system, it is characterized in that, described guide pad comprises 4 the first guide pads and 4 the second guide pads, first guide pad and the second guide pad all along the circumference of fairlead be spaced apart, stagger mutually in the position of the first guide pad and the second guide pad, two the second guide pads that each first guide pad is adjacent form Triangle-Profile.
8. a kind of moushroom valve according to claim 7 controls lower mechanical type static backup automatic vertical drilling system, it is characterized in that, the first guide pad and the second guide pad all along the circumference of fairlead in being spacedly distributed.
9. a kind of moushroom valve according to claim 2 controls lower mechanical type static backup automatic vertical drilling system, it is characterized in that, described bearing comprises upper bearing (metal) and lower bearing, the upper end of the block of described bias is fixed on upper bearing (metal), the lower end of eccentric block is fixed on lower bearing, and described arc valve block and annular catch are fixed on the bottom of lower bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728448.5U CN205047155U (en) | 2015-09-18 | 2015-09-18 | Poppet valve control mechanical type static state down pushes away by automatic perpendicular drilling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728448.5U CN205047155U (en) | 2015-09-18 | 2015-09-18 | Poppet valve control mechanical type static state down pushes away by automatic perpendicular drilling system |
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| CN205047155U true CN205047155U (en) | 2016-02-24 |
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| CN201520728448.5U Withdrawn - After Issue CN205047155U (en) | 2015-09-18 | 2015-09-18 | Poppet valve control mechanical type static state down pushes away by automatic perpendicular drilling system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134078A (en) * | 2015-09-18 | 2015-12-09 | 中国地质大学（北京） | Mechanical static push-the-bit automatic vertical drilling system under control of disc valve |
| CN109424321A (en) * | 2017-08-30 | 2019-03-05 | 中国石油化工股份有限公司 | Pushing device and vertical drilling tool for vertical drilling tool |
| CN109424319A (en) * | 2017-08-30 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of vertical drilling tool |
| CN110939386A (en) * | 2018-09-21 | 2020-03-31 | 中国石油化工股份有限公司 | Split type ball pushing device |
| CN111198058A (en) * | 2018-11-19 | 2020-05-26 | 中国石油化工股份有限公司 | Pushing force testing device |
| CN113756788A (en) * | 2021-10-18 | 2021-12-07 | 中国地质大学（北京） | Mechanical type is along with boring well deviation measuring apparatu |
-
2015
- 2015-09-18 CN CN201520728448.5U patent/CN205047155U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134078A (en) * | 2015-09-18 | 2015-12-09 | 中国地质大学（北京） | Mechanical static push-the-bit automatic vertical drilling system under control of disc valve |
| CN105134078B (en) * | 2015-09-18 | 2018-01-30 | 中国地质大学（北京） | A kind of lower mechanical static backup automatic vertical drilling system of moushroom valve control |
| CN109424321A (en) * | 2017-08-30 | 2019-03-05 | 中国石油化工股份有限公司 | Pushing device and vertical drilling tool for vertical drilling tool |
| CN109424319A (en) * | 2017-08-30 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of vertical drilling tool |
| CN110939386A (en) * | 2018-09-21 | 2020-03-31 | 中国石油化工股份有限公司 | Split type ball pushing device |
| CN110939386B (en) * | 2018-09-21 | 2021-06-01 | 中国石油化工股份有限公司 | Split type ball pushing device |
| CN111198058A (en) * | 2018-11-19 | 2020-05-26 | 中国石油化工股份有限公司 | Pushing force testing device |
| CN111198058B (en) * | 2018-11-19 | 2021-05-14 | 中国石油化工股份有限公司 | Pushing force testing device |
| CN113756788A (en) * | 2021-10-18 | 2021-12-07 | 中国地质大学（北京） | Mechanical type is along with boring well deviation measuring apparatu |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160224 Effective date of abandoning: 20180130 |