CN205063818U - Minor diameter static state under micro motor drives pushes away depends on perpendicular drilling system - Google Patents
Minor diameter static state under micro motor drives pushes away depends on perpendicular drilling system Download PDFInfo
- Publication number
- CN205063818U CN205063818U CN201520729799.8U CN201520729799U CN205063818U CN 205063818 U CN205063818 U CN 205063818U CN 201520729799 U CN201520729799 U CN 201520729799U CN 205063818 U CN205063818 U CN 205063818U
- Authority
- CN
- China
- Prior art keywords
- slide block
- bolt
- plane
- minor diameter
- drilling system
- 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.)
- Expired - Fee Related
Links
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model discloses a minor diameter static state under micro motor drives pushes away depends on perpendicular drilling system, including the uide bushing, the uide bushing lower part is equipped with can follow the radially flexible guide structure of uide bushing, still including the actuating mechanism who drives guide structure, actuating mechanism includes servo motor, and servo motor's output shaft passes through reduction gear drive connecting bolt, and threaded connection has the slider on the bolt, and the inside and outside both sides of slider are equipped with limit structure, can drive the axial motion that the bolt is followed to the slider when making the bolt rotate, and when the bolt rotated to a direction, the slider can be released guide structure, when the bolt rotates to another direction, enabled guide structure and contract under canceling release mechanical system's effect. This drilling system specially adapted minor diameter well head creep into the operation.
Description
Technical field
The utility model relates to drilling technology field, the static backup vertical drilling system of minor diameter particularly under a kind of micromachine driving.
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 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.
Utility model content
The purpose of this utility model is to provide the static backup vertical drilling system of minor diameter under the driving of a kind of micromachine, and what be specially adapted to minor diameter well head creeps into operation.
To achieve these goals, the static backup vertical drilling system of minor diameter under a kind of micromachine that the utility model provides drives, comprise fairlead, fairlead bottom is provided with can along the guide frame of fairlead radial expansion, also comprise the driving mechanism driving guide frame, described driving mechanism comprises servomotor, servomotor output shaft drive connecting bolt by reducer, bolt has been threaded slide block, the inside and outside both sides of slide block are provided with position limiting structure, with the axially-movable of movable slider along bolt when enabling screws, when bolt rotates to a direction, guide frame can be released by slide block, when bolt rotates to another direction, guide frame can be made to shrink under the effect of resetting-mechanism.
Preferably, described position limiting structure is: the inner side of guide frame is butted on the outside of slide block mutually, arranges the inner side that confined planes is butted on slide block mutually in described fairlead.
More preferably, described guide frame is guide pad, and the inner surface of guide pad is provided with inclined-plane, makes to be formed between guide pad and bolt by wide to narrow space.
Further, described inclined-plane comprises the first inclined-plane and is arranged on the second inclined-plane below the first inclined-plane, and the space formed between the first inclined-plane and bolt narrows from top to bottom gradually, and the space formed between the second inclined-plane and bolt broadens from top to bottom gradually; Described slide block comprises the first slide block, is arranged on the inner side on the first inclined-plane; And second slide block, be arranged on the inner side on the second inclined-plane; First slide block is contrary with the internal thread direction of the second slide block.
Further, the quantity on the first inclined-plane and the second inclined-plane is respectively two, and the inclined degree on two the first inclined-planes is identical and the inclined degree on two the second inclined-planes is also identical; First slide block two ends are protruding, medial recess, and the projection at the first slide block two ends is respectively offseted with first inclined-plane; Second slide block two ends are protruding, medial recess, and the projection at the second slide block two ends is respectively offseted with second inclined-plane.
Preferably, described bolt is connected by six square bars with between reducer.
Preferably, described resetting-mechanism is the back-moving spring be arranged on inside guide frame.
Preferably, the control system of well system comprises gyroscope, accelerometer and fluxgate, the output connection mode number converter of gyroscope, accelerometer and fluxgate, the output connection control device of analog-digital converter, servomotor described in controller control connection.
More preferably, described gyroscope is MEMS gyro instrument, and described accelerometer is mems accelerometer.
Preferably, also comprise the pressing plate be connected to removably on fairlead, for pushing down described guide frame.
The static backup vertical drilling system of minor diameter under a kind of micromachine that the utility model provides drives, by driven by servomotor screws, and then band movable slider promotes guide frame, avoid using complicated hydraulic mechanism, save space, also without the need to considering various sealing problem in hydraulic system, simplify the structure of driving mechanism, operation is more stable.
Accompanying drawing explanation
Fig. 1 is the sectional view of the static backup vertical drilling system of minor diameter under a kind of micromachine provided by the utility model drives.
Fig. 2 is the plan structure schematic diagram of targeting moiety;
Fig. 3 is the Control system architecture schematic diagram of well system.
In figure:
1. inclined-plane, fairlead 2. guide pad 3. servomotor 4. reducer 5. bolt 6. first slide block 7. second slide block 8. confined planes 9. pressing plate 10. 6 square bar 21. first inclined-plane 22. second
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.
For convenience of description, the word such as upper and lower, inside and outside described in the utility model is for describing the relative position relation of each parts, because well system is that brill is catotropic in the course of the work, therefore herein " on " refer to direction away from drill bit, D score refers to the direction near drill bit." interior " refers to the direction near well system central axis, the direction away from well system central axis that " outward " refers to.
Please refer to Fig. 1, the static backup vertical drilling system of the minor diameter under micromachine drives, comprise one not with the external orientation cover 1 that drilling rod rotates, in fairlead 1, middle part is drilling rod, and drilling rod lower end is for connecting drill bit.Bottom in fairlead 1 is provided with guide pad 2, and guide pad 2, under the driving of driving mechanism, can stretch out, for supporting the borehole wall in fairlead 1.When the driving event resolves of driving mechanism, guide pad 2 is shunk back in fairlead 1 by the back-moving spring (not marking in figure) of the side that sets within it.
Described driving mechanism comprises servomotor 3, and the output shaft connection reducer 4 of servomotor 3, is also provided with bolt 5 in fairlead 1, and reducer 4 is fixedly connected with bolt 5 by six square bars 10, and bolt 5 can be rotated under servomotor 3 drives.Bolt 5 is positioned at inside guide pad 2, the inner surface of guide pad 2 is provided with two the first inclined-planes 21 and two the second inclined-planes 22 be positioned at below the first inclined-plane 21, the space formed between first inclined-plane 21 and bolt 5 narrows from top to bottom gradually, the incline direction on the second inclined-plane 22 is contrary with the first inclined-plane 21, and the space namely formed between the second inclined-plane 22 and bolt 5 broadens from top to bottom gradually.And the first inclined-plane 21 is all identical with the inclined degree on the second inclined-plane 22, form axially symmetric structure.Bolt 5 has been threaded the first slide block 6 and the second slide block 7, first slide block 6 is arranged on inside the first inclined-plane 21, the medial recess of the first slide block 6, two ends near the first inclined-plane 21 are protruding, and respectively offset with first inclined-plane 21 by the projection at two ends, similarly, second slide block 7 is arranged on inside the second inclined-plane 22, its medial recess, two ends are protruding, and respectively offset with second inclined-plane 22 by the projection at two ends.The side away from guide pad 2 of the first slide block 6 and the second slide block 7 is provided with confined planes 8, confined planes 8 also can extend along the circumference of fairlead 1 thus be wrapped by two slide blocks, like this, when bolt 5 rotates, first slide block 6 and the second slide block 7 just can sliding axially along bolt 5, and in addition, the first slide block 6 and the second slide block 7 are connected internal thread direction used with bolt 5 contrary, when bolt 5 is rotated, the first slide block 6 is contrary with the direction of motion of the second slide block 7.Such as, when bolt 5 is along when rotating clockwise, the first slide block 6 and the second slide block 7 move in opposite directions, and the direction that the projection now on the first slide block 6 and the second slide block 7 respectively narrows along the first inclined-plane 21 and the second inclined-plane 22 towards space is moved, thus is released by guide pad 2.When bolt 5 rotates in the counterclockwise direction, first slide block 6 and the second slide block 7 move towards direction away from each other, namely the direction that the projection now on the first slide block 6 and the second slide block 7 respectively broadens along the first inclined-plane 21 and the second inclined-plane 22 towards space is moved, and guide pad 2 shrinks back in fairlead 1 under the effect of back-moving spring.First inclined-plane 21 and the second inclined-plane 22 respectively arrange two, are equivalent to the backup distance of slide block extended, make the long enough that the length of guide pad 2 can design, and enough large with the contact area of the borehole wall when there is hole deviation, righting effect is better to be stablized.Fairlead is provided with pressing plate 9 removably, for pushing down guide pad 2.In well system transportation, guide pad 2 can not auto-extending, conveniently transport like this.
Please refer to Fig. 3, the control system part of well system comprises gyroscope, accelerometer and fluxgate, for responding to the spatial attitude of well system in down-hole.Wherein gyroscope, accelerometer adopt based on the MEMS gyro instrument of MEMS (MEMS) and mems accelerometer.The output of gyroscope, accelerometer and fluxgate is connected to the input of controller by analog-digital converter, the output of controller connects the motor control panel of servomotor 3, when the sensors such as gyroscope, accelerometer and fluxgate detect that hole deviation occurs, controller controls servomotor 3 and starts, guide pad 2 stretches out and withstands the borehole wall under driving mechanism effect, after righting, controller control servomotor 3 reverses, and guide pad 2 is regained.The guide pad quantity that the utility model adopts is three, is spacedly distributed (as shown in Figure 2), therefore needs three cover servomotors and driving mechanism to drive along fairlead circumference.
The static backup vertical drilling system of minor diameter under driving micromachine provided by the utility model is 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 (10)
1. the static backup vertical drilling system of minor diameter under a micromachine driving, comprise fairlead, fairlead bottom is provided with can along the guide frame of fairlead radial expansion, it is characterized in that, also comprise the driving mechanism driving guide frame, described driving mechanism comprises servomotor, servomotor output shaft drive connecting bolt by reducer, bolt has been threaded slide block, the inside and outside both sides of slide block are provided with position limiting structure, with the axially-movable of movable slider along bolt when enabling screws, when bolt rotates to a direction, guide frame can be released by slide block, when bolt rotates to another direction, guide frame can be made to shrink under the effect of resetting-mechanism.
2. the static backup vertical drilling system of minor diameter under a kind of micromachine driving according to claim 1, it is characterized in that, described position limiting structure is: the inner side of guide frame is butted on the outside of slide block mutually, arranges the inner side that confined planes is butted on slide block mutually in described fairlead.
3. the static backup vertical drilling system of minor diameter under a kind of micromachine driving according to claim 2, it is characterized in that, described guide frame is guide pad, and the inner surface of guide pad is provided with inclined-plane, makes to be formed between guide pad and bolt by wide to narrow space.
4. the static backup vertical drilling system of minor diameter under a kind of micromachine driving according to claim 3, it is characterized in that, described inclined-plane comprises the first inclined-plane and is arranged on the second inclined-plane below the first inclined-plane, the space formed between first inclined-plane and bolt narrows from top to bottom gradually, and the space formed between the second inclined-plane and bolt broadens from top to bottom gradually; Described slide block comprises the first slide block, is arranged on the inner side on the first inclined-plane; And second slide block, be arranged on the inner side on the second inclined-plane; First slide block is contrary with the internal thread direction of the second slide block.
5. the static backup vertical drilling system of minor diameter under a kind of micromachine driving according to claim 4, it is characterized in that, the quantity on the first inclined-plane and the second inclined-plane is respectively two, and the inclined degree on two the first inclined-planes is identical and the inclined degree on two the second inclined-planes is also identical; First slide block two ends are protruding, medial recess, and the projection at the first slide block two ends is respectively offseted with first inclined-plane; Second slide block two ends are protruding, medial recess, and the projection at the second slide block two ends is respectively offseted with second inclined-plane.
6. the static backup vertical drilling system of minor diameter under driving according to the arbitrary described a kind of micromachine of claim 1-5, it is characterized in that, described bolt is connected by six square bars with between reducer.
7. the static backup vertical drilling system of minor diameter under driving according to the arbitrary described a kind of micromachine of claim 1-5, it is characterized in that, described resetting-mechanism is the back-moving spring be arranged on inside guide frame.
8. the static backup vertical drilling system of minor diameter under driving according to the arbitrary described a kind of micromachine of claim 1-5, it is characterized in that, the control system of well system comprises gyroscope, accelerometer and fluxgate, the output connection mode number converter of gyroscope, accelerometer and fluxgate, the output connection control device of analog-digital converter, servomotor described in controller control connection.
9. the static backup vertical drilling system of minor diameter under a kind of micromachine driving according to claim 8, it is characterized in that, described gyroscope is MEMS gyro instrument, and described accelerometer is mems accelerometer.
10. the static backup vertical drilling system of minor diameter under driving according to the arbitrary described a kind of micromachine of claim 1-5, is characterized in that, also comprise the pressing plate be connected to removably on fairlead, for pushing down described guide frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729799.8U CN205063818U (en) | 2015-09-18 | 2015-09-18 | Minor diameter static state under micro motor drives pushes away depends on perpendicular drilling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729799.8U CN205063818U (en) | 2015-09-18 | 2015-09-18 | Minor diameter static state under micro motor drives pushes away depends on perpendicular drilling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205063818U true CN205063818U (en) | 2016-03-02 |
Family
ID=55390386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520729799.8U Expired - Fee Related CN205063818U (en) | 2015-09-18 | 2015-09-18 | Minor diameter static state under micro motor drives pushes away depends on perpendicular drilling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205063818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134077A (en) * | 2015-09-18 | 2015-12-09 | 中国地质大学（北京） | Small-diameter static pushing perpendicular well drilling system driven by micro motor |
-
2015
- 2015-09-18 CN CN201520729799.8U patent/CN205063818U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134077A (en) * | 2015-09-18 | 2015-12-09 | 中国地质大学（北京） | Small-diameter static pushing perpendicular well drilling system driven by micro motor |
| CN105134077B (en) * | 2015-09-18 | 2018-03-09 | 中国地质大学（北京） | A kind of minor diameter static state backup vertical drilling system under micromachine driving |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205047155U (en) | Poppet valve control mechanical type static state down pushes away by automatic perpendicular drilling system | |
| CN102865038B (en) | A kind of offset guide mechanism of dynamic guiding type rotary steering drilling tool | |
| CN102680275B (en) | Device for sampling shallow soil of extraterrestrial star | |
| CN101059061B (en) | Sliding push-the-bit type steering drilling tool | |
| CN107939288A (en) | A kind of anti-rotation device and rotary guiding device of non-rotating set | |
| CA2523725A1 (en) | Steerable drilling apparatus having a differential displacement side-force exerting mechanism | |
| MX2011003348A (en) | Bending of a shaft of a steerable borehole drilling tool. | |
| CN102913131A (en) | Dynamic point-the-bit rotary steering drilling tool | |
| CN112901075A (en) | High-precision short-radius rotary steering drilling tool | |
| CN105386736A (en) | Tool used for taking casing underground at fixed point and using method | |
| CN104499940A (en) | Full-rotation sense type guide tool and guide method | |
| CN205063818U (en) | Minor diameter static state under micro motor drives pushes away depends on perpendicular drilling system | |
| CN106436759B (en) | The assembled trolley of prefabricated components assembly type subway station is used for open cut formula | |
| CN101696628A (en) | Steering bias tool and steering bias method | |
| CN105134079A (en) | Mechanical static pushing-leaning automatic vertical drilling system | |
| CN202731751U (en) | Drilling tool capable of exciting drill string to vibrate | |
| CN105134078A (en) | Mechanical static push-the-bit automatic vertical drilling system under control of disc valve | |
| CN105134077A (en) | Small-diameter static pushing perpendicular well drilling system driven by micro motor | |
| CN205558811U (en) | Drilling equipment for engineering | |
| CN205063820U (en) | Mechanical type static state pushes away depends on automatic perpendicular drilling system | |
| CN100376763C (en) | Strapdown type stable platform apparatus | |
| CN104499474B (en) | A kind of folding blade-type multipoint displacement meter anchor head | |
| CN105156030B (en) | One kind is used for oil and gas well drilling anti-deviation device | |
| CN104989308B (en) | High angle hole radial jet windowing guide device and windowing bootstrap technique | |
| CN103046874A (en) | Underground drill rig and supporting device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20180918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |