CN206205823U - Oil drilling remote control diameter variable stabilizer - Google Patents

Abstract

Oil drilling remote control diameter variable stabilizer,Including housing,Signal valve head,Signal valve pocket,Power piston,Cushion rubber,Thrust bearing,Oblique orbit,Reducing piston,Conversion seat,Reducing positioning body,Positioning seat,Wherein housing two ends are threaded,There are three spiral boss at its cylindrical middle part,Every there is radial direction circular hole at spiral boss middle part,Hole is built with reducing piston,In the anti-T-shaped groove of the oblique T-shaped partial insertion oblique orbit of reducing internal piston,Conversion seat,Reducing positioning body,Positioning seat with radial direction screw inclined plane be oriented to the surfaces of revolution,It is rotation and reducing locating surface with plane,Turn on pump only need to be coordinated with manometer,Termination of pumping,Can just complete to the control of remote control diameter variable stabilizer of this oil drilling,It is simple to operate,Low cost of manufacture,Properties of product stabilization,It is safe and reliable,Long service life,Drillng operation cost is saved,And substantially increase economic benefit.

Description

Oil drilling remote control diameter variable stabilizer

Technical field

The utility model be related to carry out directional well, horizontal well and peupendicular hole in oil drilling hole trajectory control with it is anti-oblique Beat technical field soon, and in particular to a kind of oil drilling remote control diameter variable stabilizer.

Background technology

With carrying out in a deep going way for oil field development, extended reach well, horizontal well with the characteristics of high torque, frictional resistance high are increasingly It is many, in order to control the track of well in drilling process, well track is carried out using downhole instruments such as skew-swept airfoil cooperation MWD, LWD more Control, when skew-swept airfoil build angle rate is excessive or too small, it is necessary to make a trip change proper angle skew-swept airfoil, to meet it to well The demand for control of eye track, when hole deviation change occur it is abnormal, it is necessary to when increasing hole angle or drop angle, it is also desirable to change BHA, significantly Increased the risk that labour intensity and down-hole accident occur.

Remote control diameter variable stabilizer can by the mechanical characteristic that changes the diameter of downhole stabilizer to change DHA, Preferably control hole deviation, meets the technological requirement such as increasing hole angle, drop angle in oil drilling, reduce Drilling the number of times that makes a trip, Improve drilling efficiency, reduce drilling cost.

The remote control diameter variable stabilizer that is used in current oil drilling is, it is necessary to the electronic remote controller of complexity and be wirelessly transferred letter Number system, has that complicated, the live reducing technological operation of tool construction is cumbersome, safety and reliability is low, later mostly In the market occurs in that simple tapered stabilizer and simple remote-control diameter-variable tapered stabilizer, and simple tapered stabilizer has bit pressure type and liquid Pressure type, simply overcomes the slacking off of conventional stabilizer, pulls out of hole and meet the situation of card；Simple remote-control diameter-variable tapered stabilizer has throwing Ball and fluid pressure type, ball-throwing type need ground pitching, and complex operation, number of diameter changing is restricted, and fluid pressure type there is no more perfect Structure type is largely used.

The content of the invention

In order to solve the deficiency of the said equipment, the utility model provides a kind of oil drilling remote control diameter variable stabilizer, The apparatus casing is monolithic construction, and signal valve head and signal valve pocket form by hard alloy or Ceramic manufacturing, reducing piston with Oblique orbit is processed through abrasionproof, and conversion seat, reducing positioning body, positioning seat are with plane with radial direction screw inclined plane as the surfaces of revolution is oriented to Rotation and reducing locating surface, thrust bearing make rotation more flexible, and spring makes impact during reducing with the combined shock absorption effect of cushion rubber Active force is lower, only need to coordinate turn on pump, termination of pumping with manometer, it is possible to complete to this oil drilling remote control diameter variable stabilizer Control, the purpose of this utility model be exactly for scene a kind of oil drilling remote control diameter variable stabilizer is provided.

The utility model is achieved through the following technical solutions.

Oil drilling remote control diameter variable stabilizer, including housing, back-up ring A, baffle ring, snap ring, sealing, bottom pipe nipple, jackscrew, Signal valve seat, signal valve head, signal valve pocket, power piston, wear ring, cushion rubber, thrust bearing A, the spring seat of honour, spring A, core Axle, gland, spring lower seat, oblique orbit, reducing piston, spring B, conversion seat, Positioning screw A, reducing positioning body, thrust bearing B, Positioning seat, Positioning screw B, back-up ring B, support set, compensating piston, gag lever post, Positioning screw C, screen pack, wherein back-up ring C, housing Be circular tube shaped, upper and lower ends are threaded, there are three equally distributed spiral boss at its cylindrical middle part, spiral boss two ends by Chamfered transition, every spiral boss middle part is machined with four, five or six equally distributed radial direction circular holes, and reducing work is provided with hole Plug, its endoporus is machined with an annular groove and two steps successively from top to bottom, annular groove built with snap ring, on first step Equipped with signal valve seat, on second step be equipped with spring lower seat, on periphery spiral boss downwards on four height successively Three, one, one, three radial holes are machined with, Positioning screw A, Positioning screw B, Positioning screw C, mistake are respectively provided with hole Filter screen and back-up ring C, in the anti-T-shaped groove of the oblique T-shaped partial insertion oblique orbit of reducing internal piston, form sliding pair, and slide Rubbing surface is processed through abrasionproof, and power piston to the annular sealed space between compensating piston is full of hydraulic oil.

Oblique orbit is a circular tube shaped, is machined with its periphery equally distributed, obliquely downward three on axle center Plane, planar central is provided with anti-T-shaped groove, is all provided with axial hole between each two tapered plane, reducing piston be it is cylindric, it is cylindrical There is annular groove on face, groove is processed into oblique T-shaped built with sealing, inside it, inclined-plane is towards oblique upper, and its external process is in the arc-shaped And arc surface is processed through abrasionproof.

The structure of conversion seat, reducing positioning body and positioning seat has two kinds, one：Conversion seat is a circular tube shaped, and its lower surface adds Work has equally distributed four radial direction screw inclined planes and four radial direction perpendiculars, and reducing positioning body is a circular tube shaped, its upper end There are equally distributed four radial direction screw inclined planes and four radial direction perpendiculars in face, and its underpart has equally distributed two length two short by four Individual supporting leg, the lower surface of supporting leg is horizontal plane, before be radial direction perpendicular, behind be radial direction screw inclined plane, its endoporus There is a boss at middle part, and positioning seat is a circular tube shaped, and equally distributed two deep two shallow four grooves, the bottom of groove are arranged at its top Be horizontal plane, before be radial direction perpendicular, behind be radial direction screw inclined plane, conversion seat, reducing positioning body, positioning seating face warp Abrasionproof cure process；Two：From unlike one, conversion seat lower surface is machined with equally distributed six radial direction screw inclined planes and six Individual radial direction perpendicular, reducing positioning body upper surface has equally distributed six radial direction screw inclined planes and six radial directions to put down vertically There are six supporting legs of equally distributed long, medium and short face, its underpart, positioning seat top have it is equally distributed it is deep, in, shallow six it is recessed Groove.

Signal valve seat is a circular tube shaped, and endoporus has a step, three crescent holes are provided with end face, and cylindrical middle part is every Two middle parts in crescent hole respectively process a radial screw bore, and signal valve head is one cylindric, and outer circular top part is one convex Platform, boss has downwards an annular groove, and bottom is circular conical surface, and with signal valve seat be fixed as one signal valve head by jackscrew, signal valve It is a thin-wall circular tubulose to cover, and top is cone, and signal valve head and signal valve pocket are formed by hard alloy or Ceramic manufacturing.

Power piston is threadably secured with mandrel and is integrated, and signal valve pocket is bonded in power piston endoporus top, cushion rubber Load in the annular groove on power piston lower stage terrace, power piston is a circular tube shaped, periphery top is machined with outer six sides Or outward from all directions, periphery bottom is machined with annular groove, groove has a boss built with sealing and wear ring, endoporus middle part, and top adds Into conical bore, bottom is machined with internal thread and annular groove to work, and groove is built with sealing.

Mandrel is a circular tube shaped, and upper end is machined with external screw thread, and its middle part next coming in order is machined with a step, a boss Annular groove, more than step is filled with oblique orbit, gland and the spring seat of honour successively together, and reducing positioning body is covered at boss lower end, Positioned by the upper surface of reducing positioning body endoporus boss, back-up ring B, back-up ring B and reducing positioning body endoporus boss are filled with annular groove Lower surface between be filled with thrust bearing B, the endoporus of bottom pipe nipple is inserted in mandrel lower end.

Thrust bearing A is filled between cushion rubber and the spring seat of honour, spring A, ramp are filled between the spring seat of honour and spring lower seat Spring B is filled between road and conversion seat, compensating piston is a circular tube shaped, there is annular groove on its endoporus and periphery, is had in groove Sealing, is machined with internal thread on lower surface, two gag lever posts are threadedly secured in the screwed hole on its lower surface, overall dress Enter the annular space of support set and mandrel.

Bottom pipe nipple is a circular tube shaped, and upper and lower ends are threaded, and annular groove is machined with the inner headed face of top, and groove is built-in There are sealing and wear ring, bottom pipe nipple is fixed as one by screw thread with housing.

With housing be fixed as one conversion seat by Positioning screw A, and Positioning screw B and support set fix positioning seat with housing It is integrated, Positioning screw C and bottom pipe nipple make three radial holes on support set corresponding with screen pack, support set is a pipe Shape, its three upper and lowers of radial hole respectively have one annular groove on periphery, there is sealing in groove.

The front end of Positioning screw A, Positioning screw B and Positioning screw C is roundlet column, and middle part is threaded, and rear end is It is big cylindric, there is annular groove on big cylindrical section periphery, there is sealing in groove, equipped with Positioning screw A, Positioning screw B and positioning spiral shell Be machined with a step in the hole for following closely C, step outside is macropore, is threaded in the hole inside step, the screw thread respectively with Being screwed in the middle part of Positioning screw A, Positioning screw B, Positioning screw C, has annular groove in the hole equipped with screen pack and back-up ring C, Back-up ring C is filled with groove.

The utility model has advantages below：Housing is monolithic construction, and intensity is high, and signal valve head and signal valve pocket are by hard Matter alloy or Ceramic manufacturing are formed, and hardness is high, erosion resistance；Reducing piston is processed with oblique orbit through abrasionproof；Conversion seat, reducing positioning Body, positioning seat, with radial direction screw inclined plane as the surfaces of revolution is oriented to, are rotation and reducing locating surface with plane, and surface is through abrasionproof hardening Treatment, face contact is more resistant；It is rolling friction that thrust bearing A and thrust bearing B becomes sliding friction, is rotated more flexible；Spring A, Spring B makes impact forces during reducing lower with the combined shock absorption effect of cushion rubber, safer；Complicated electronic telecontrol is not needed Device and Wireless signal transmission system, only need to coordinate turn on pump, termination of pumping, it is possible to complete to this oil drilling with distant with manometer The control of tapered stabilizer is controlled, low cost of manufacture is easy to operate, and stable performance is safe and reliable, long service life, has saved brill Well operations cost, and substantially increase economic benefit.

Brief description of the drawings

Fig. 1：Oil drilling remote control diameter variable stabilizer schematic diagram

Fig. 2：Oil drilling remote control diameter variable stabilizer conversion seat, reducing positioning body, positioning seat expanded schematic diagram

1st, housing 2, back-up ring A 3, baffle ring 4, snap ring 5, jackscrew 6, signal valve seat 7, signal valve head 8, signal valve pocket 9th, power piston 10, cushion rubber 11, thrust bearing A 12, the spring seat of honour 13, spring A 14, mandrel 15, gland 16, spring Lower seat 17, oblique orbit 18, reducing piston 19, spring B 20, conversion seat 21, Positioning screw A 22, reducing positioning body 23, Thrust bearing B 24, positioning seat 25, Positioning screw B 26, back-up ring B 27, support set 28, compensating piston 29, gag lever post 30, Positioning screw C 31, screen pack 32, back-up ring C 33, bottom pipe nipple.

Specific embodiment

In conjunction with Figure of description：The present invention will be further described for Fig. 1, Fig. 2.

Embodiment one：

Oil drilling remote control diameter variable stabilizer, including housing 1, back-up ring A 2, baffle ring 3, snap ring 4, sealing, bottom pipe nipple 33rd, jackscrew 5, signal valve seat 6, signal valve head 7, signal valve pocket 8, power piston 9, wear ring, cushion rubber 10, thrust bearing A 11, The spring seat of honour 12, spring A 13, mandrel 14, gland 15, spring lower seat 16, oblique orbit 17, reducing piston 18, spring B 19, turn Change seat 20, Positioning screw A 21, reducing positioning body 22, thrust bearing B 23, positioning seat 24, Positioning screw B 25, back-up ring B 26, Support set 27, compensating piston 28, gag lever post 29, Positioning screw C 30, screen pack 31, back-up ring C 32, wherein housing 1 are pipe Shape, upper and lower ends are threaded, and there are three equally distributed spiral boss at its cylindrical middle part, and spiral boss two ends are by inclined-plane mistake Cross, every spiral boss middle part is machined with four equally distributed radial direction circular holes, and reducing piston 18 is provided with hole, its endoporus from Top to bottm is machined with an annular groove and two steps successively, and annular groove is equipped with signal valve built with snap ring 4 on first step Seat 6, is equipped with spring lower seat 16 on second step, spiral boss is machined with three successively on four height downwards on periphery Individual, one, one, three radial holes, are respectively provided with Positioning screw A 21, Positioning screw B 25, Positioning screw C 30, mistake in hole Filter screen 31 and back-up ring C 32, in the anti-T-shaped groove of the oblique T-shaped partial insertion oblique orbit 17 inside reducing piston 18, form and slide Pair, and sliding friction surface, through abrasionproof treatment, power piston 9 to the annular sealed space between compensating piston 28 is full of hydraulic oil.

Oblique orbit 17 be a circular tube shaped, be machined with its periphery on axle center it is equally distributed, obliquely downward three Individual plane, planar central is provided with anti-T-shaped groove, is all provided with axial hole between each two tapered plane, reducing piston 18 be it is cylindric, Have annular groove on periphery, groove is processed into oblique T-shaped built with sealing, inside it, inclined-plane towards oblique upper, its external process Cheng Yuan Arc and arc surface are processed through abrasionproof.

Conversion seat 20 is a circular tube shaped, and its lower surface is machined with equally distributed four radial direction screw inclined planes and four radial directions Perpendicular, reducing positioning body 22 is a circular tube shaped, and there are equally distributed four radial direction screw inclined planes and four footpaths in its upper surface To perpendicular, there are two short four supporting legs of equally distributed two length its underpart, and the lower surface of supporting leg is horizontal plane, before be Radial direction perpendicular, behind be radial direction screw inclined plane, there is a boss at its endoporus middle part, and positioning seat 24 is a circular tube shaped, thereon There are equally distributed two deep two shallow four grooves in portion, and the bottom of groove is horizontal plane, before be radial direction perpendicular, behind be footpath To screw inclined plane, conversion seat 20, reducing positioning body 22, the surface of positioning seat 24 are through abrasionproof cure process.

Signal valve seat 6 is a circular tube shaped, and endoporus has a step, three crescent holes are provided with end face, and cylindrical middle part exists The middle part in each two crescent hole respectively processes a radial screw bore, and signal valve head 7 is one cylindric, and outer circular top part is one Boss, boss has downwards an annular groove, and bottom is circular conical surface, and with signal valve seat 6 be fixed as one signal valve head 7 by jackscrew 5, letter Number valve pocket 8 is a thin-wall circular tubulose, and top is cone, and signal valve head 7 and signal valve pocket 8 are by hard alloy or Ceramic manufacturing Into.

Power piston 9 is threadably secured with mandrel 14 and is integrated, and signal valve pocket 8 is bonded in the endoporus top of power piston 9, Cushion rubber 10 loads in the annular groove on the lower stage terrace of power piston 9, and power piston 9 is a circular tube shaped, the processing of periphery top Have outer six sides or it is outer periphery bottom is machined with annular groove from all directions, built with sealing and wear ring, endoporus middle part has one convex to groove Conical bore is processed on platform, top, and bottom is machined with internal thread and annular groove, and groove is built with sealing.

Mandrel 14 is a circular tube shaped, and upper end is machined with external screw thread, its middle part next coming in order be machined with a step, one it is convex Platform annular groove with together with, more than step is filled with oblique orbit 17, gland 15 and the spring seat of honour 12 successively, and boss covers reducing at lower end Positioning body 22, is positioned by the upper surface of the endoporus boss of reducing positioning body 22, and back-up ring B 26, back-up ring B 26 and change are filled with annular groove Thrust bearing B 23 is filled between the lower surface of the endoporus boss of footpath positioning body 22, the interior of bottom pipe nipple 33 is inserted in the lower end of mandrel 14 Hole.

Thrust bearing A 11 is filled between cushion rubber 10 and the spring seat of honour 12, is filled between the spring seat of honour 12 and spring lower seat 16 Spring A 13, is filled with spring B 19 between oblique orbit 17 and conversion seat 20, compensating piston 28 is a circular tube shaped, its endoporus and cylindrical There is annular groove on face, there is sealing in groove, internal thread is machined with lower surface, two gag lever posts 29 are threadedly secured under it In screwed hole on end face, the overall annular space for loading support set 27 and mandrel 14.

Bottom pipe nipple 33 is a circular tube shaped, and upper and lower ends are threaded, and annular groove are machined with the inner headed face of top, in groove Equipped with sealing and wear ring, bottom pipe nipple 33 is fixed as one by screw thread with housing 1.

With housing 1 be fixed as one conversion seat 20 by Positioning screw A 21, and Positioning screw B 25 and support set 27 will be positioned Seat 24 is fixed as one with housing 1, and Positioning screw C 30 and bottom pipe nipple 33 make three radial holes on support set 27 and filtering Net 31 is corresponding, and support set 27 is a circular tube shaped, and its three upper and lowers of radial hole respectively have one annular groove, groove on periphery Inside there is sealing.

Positioning screw A 21, Positioning screw B 25 are roundlet column with the front end of Positioning screw C 30, and middle part is machined with spiral shell Line, rear end is big cylindric, has annular groove on big cylindrical section periphery, there is sealing in groove, equipped with Positioning screw A 21, positioning spiral shell A step is machined with the hole of nail B 25 and Positioning screw C 30, step outside is macropore, is machined with the hole inside step Screw thread, the screw thread is screwed with Positioning screw A 21, Positioning screw B 25, Positioning screw C 30 middle part respectively, is equipped with There is annular groove in the hole of filter screen 31 and back-up ring C 32, back-up ring C 32 is filled with groove.

Embodiment two：

Oil drilling remote control diameter variable stabilizer, from unlike embodiment one, the lower surface of conversion seat 20 is machined with uniformly Six radial direction screw inclined planes and six radial direction perpendiculars of distribution, there are equally distributed six footpaths the upper surface of reducing positioning body 22 To screw inclined plane and six radial direction perpendiculars, there are six supporting legs of equally distributed long, medium and short its underpart, on positioning seat 24 Portion have it is equally distributed it is deep, in, shallow six grooves；Every spiral boss middle part of housing 1 is machined with five equally distributed footpaths To circular hole.

Oil drilling is accessed into drilling tool with remote control diameter variable stabilizer, mud circulation canal is connected.

After first time turn on pump, in the case where mud momentum effect is flowed, signal valve pocket 8, power piston 9 and mandrel 14 are to moving down It is dynamic, drive cushion rubber 10, thrust bearing A 11, the spring seat of honour 12, gland 15, oblique orbit 17, reducing positioning body 22, thrust bearing B 23rd, back-up ring B 26 is moved down, while spring A 13 is compressed by the spring seat of honour 12 and oblique orbit 17 respectively with spring B 19, thereon End face is moved down, while reducing piston 18 is push by oblique orbit 17 be displaced outwardly, while power piston 9 to compensating piston 28 it Between hydraulic fluid pressure in annular sealed space raise, promote compensating piston 28 to be moved down with gag lever post 29, compensating piston 28 Mud in annular space between bottom pipe nipple 33 through three radial holes, the screen pack 31 on support set 27 to housing 1 outside Flowing, the radial direction screw inclined plane behind two support legs of drawing money on credit of the bottom of reducing positioning body 22 is shallow with two of the top of positioning seat 24 When radial direction screw inclined plane behind groove is in contact, reducing positioning body 22 starts radially screw inclined plane rotation, when its lower surface When two bottom connections of shallow grooves with the top of positioning seat 24 are touched, above-mentioned moving parts stops movement, outside reducing piston 18 Arc surface reach setting oil drilling remote control diameter variable stabilizer small path position, the bottom of signal valve head 7 is still located at In the bottom endoporus of signal valve pocket 8, the resistance to flowing mud is larger, and larger pressure drop is produced on instrument, while compensate living The mud for filling in 28 bottoms stops to the flows outside of housing 1, and now it is used as path stabilizer；

After termination of pumping, mud impulse force disappears, and the above-mentioned spring A 13 for being compressed resets with spring B 19, and its upper surface is moved upwards It is dynamic, while the push the spring seat of honour 12, thrust bearing A 11, cushion rubber 10, power piston 9, signal valve pocket 8, mandrel 14, oblique orbit 17th, gland 15, back-up ring B 26, thrust bearing B 23, reducing positioning body 22 are moved up, while reducing piston 18 is by oblique orbit 17 Haul and move inward, while the hydraulic fluid pressure reduction in power piston 9 to annular sealed space between compensating piston 28, housing Mud outside 1 is through three radial holes on screen pack 31, support set 27 to compensating piston 28 to the ring between bottom pipe nipple 33 Flowed in shape space, promote compensating piston 28 to be moved up with gag lever post 29, when uniform point on the upper surface of reducing positioning body 22 When four radial direction screw inclined planes of cloth are in contact with four radial direction screw inclined planes on the lower surface of conversion seat 20, reducing positioning body 22 Start radially screw inclined plane rotation, when its four radial direction perpendiculars are in contact with four radial direction perpendiculars of conversion seat 20 When, above-mentioned moving parts stops movement, and reducing piston 18 is pulled back to the position before turn on pump, the mud outside housing 1 stop to Flowed in compensating piston 28 to the annular space between bottom pipe nipple 33；

After second turn on pump, in the case where mud momentum effect is flowed, signal valve pocket 8, power piston 9 and mandrel 14 are to moving down It is dynamic, drive cushion rubber 10, thrust bearing A 11, the spring seat of honour 12, gland 15, oblique orbit 17, reducing positioning body 22, thrust bearing B 23rd, back-up ring B 26 is moved down, while spring A 13 is compressed by the spring seat of honour 12 and oblique orbit 17 respectively with spring B 19, thereon End face is moved down, while reducing piston 18 is push by oblique orbit 17 be displaced outwardly, while power piston 9 to compensating piston 28 it Between hydraulic fluid pressure in annular sealed space raise, promote compensating piston 28 to be moved down with gag lever post 29, compensating piston 28 Mud in annular space between bottom pipe nipple 33 through three radial holes, the screen pack 31 on support set 27 to housing 1 outside Flowing, the radial direction screw inclined plane behind two support legs of drawing money on credit of the bottom of reducing positioning body 22 is deep with two of the top of positioning seat 24 When radial direction screw inclined plane behind groove is in contact, reducing positioning body 22 starts radially screw inclined plane rotation, when its underpart Radial direction screw inclined plane phase behind radial direction screw inclined plane behind two short supporting legs and two shallow grooves on the top of positioning seat 24 During contact, reducing positioning body 22 continues radially screw inclined plane rotation,

When four bottom connections of groove of its lower surface respectively with the top of positioning seat 24 are touched, above-mentioned moving parts stops Mobile, the arc surface outside reducing piston 18 reaches the big path position of the oil drilling remote control diameter variable stabilizer of setting, signal The bottom endoporus of the bottom separating signal valve pocket 8 of valve head 7, the resistance to flowing mud is smaller, and less pressure is produced on instrument Drop, while the mud of the bottom of compensating piston 28 stops to the flows outside of housing 1, now it is used as big footpath stabilizer；

After second termination of pumping, mud impulse force disappears, and the above-mentioned spring A 13 for being compressed resets with spring B 19, its upper surface Move up, at the same the push the spring seat of honour 12, thrust bearing A 11, cushion rubber 10, power piston 9, signal valve pocket 8, mandrel 14, tiltedly Track 17, gland 15, back-up ring B 26, thrust bearing B 23, reducing positioning body 22 are moved up, while reducing piston 18 is by ramp Road 17 is hauled and moved inward, while the hydraulic fluid pressure reduction in power piston 9 to annular sealed space between compensating piston 28, Mud outside housing 1 is through three radial holes on screen pack 31, support set 27 to compensating piston 28 between bottom pipe nipple 33 Annular space in flowing, promote compensating piston 28 moved up with gag lever post 29, when equal on the upper surface of reducing positioning body 22 When four radial direction screw inclined planes of even distribution are in contact with four radial direction screw inclined planes on the lower surface of conversion seat 20, reducing positioning Body 22 starts radially screw inclined plane rotation, when its four radial direction perpendiculars and four radial direction perpendicular phases of conversion seat 20 During contact, above-mentioned moving parts stops movement, and reducing piston 18 is pulled back to the position before turn on pump, and the mud outside housing 1 stops Only flowed in compensating piston 28 to the annular space between bottom pipe nipple 33；

Move in circles successively, oil drilling is switched once with each turn on pump working condition of remote control diameter variable stabilizer, by The situation of change of terrestrial observation pressure drop judges oil drilling remote control diameter variable stabilizer reducing state, is fitted in drilling process Shi Bianhuan, so as to reach the purpose being control effectively to well track.

Both examples above is the typical embodiment of the utility model, rather than whole embodiments, the one of this area As technical staff's scheme of the invention and the profile to the part accessory in the present invention changed or disassembled, can make Various embodiments, in the case where its function is not changed, are all considered as protection domain of the present utility model.

Claims (11)

1. oil drilling remote control diameter variable stabilizer, including housing（1）, back-up ring A（2）, baffle ring（3）, snap ring（4）, sealing, bottom Pipe nipple（33）, it is characterized in that also added with jackscrew（5）, signal valve seat（6）, signal valve head（7）, signal valve pocket（8）, power piston （9）, wear ring, cushion rubber（10）, thrust bearing A（11）, the spring seat of honour（12）, spring A（13）, mandrel（14）, gland（15）, bullet Seat under spring（16）, oblique orbit（17）, reducing piston（18）, spring B（19）, conversion seat（20）, Positioning screw A（21）, reducing it is fixed Position body（22）, thrust bearing B（23）, positioning seat（24）, Positioning screw B（25）, back-up ring B（26）, support set（27）, compensating piston （28）, gag lever post（29）, Positioning screw C（30）, screen pack（31）, back-up ring C（32）, wherein housing（1）It is circular tube shaped, upper and lower two End is threaded, and there are three equally distributed spiral boss at its cylindrical middle part, and spiral boss two ends are by chamfered transition, every spiral shell Rotation boss middle part is machined with four, five or six equally distributed radial direction circular holes, and reducing piston is provided with hole（18）, its endoporus from Top to bottm is machined with an annular groove and two steps successively, and annular groove is built with snap ring（4）, signal is housed on first step Valve seat（6）, spring lower seat is housed on second step（16）, spiral boss adds downwards successively on four height on periphery Work has three, one, one, three radial holes, and Positioning screw A is respectively provided with hole（21）, Positioning screw B（25）, positioning spiral shell Nail C（30）, screen pack（31）With back-up ring C（32）, reducing piston（18）Internal oblique T-shaped partial insertion oblique orbit（17）Anti- T In shape groove, sliding pair is formed, and sliding friction surface is processed through abrasionproof, power piston（9）To compensating piston（28）Between ring Shape confined space is full of hydraulic oil.

2. oil drilling remote control diameter variable stabilizer according to claim 1, it is characterized in that oblique orbit（17）It is a pipe Shape, is machined with its periphery on axle center is equally distributed, three planes obliquely downward, and planar central is provided with anti-T-shaped Groove, is all provided with axial hole, reducing piston between each two tapered plane（18）For cylindric, there is annular groove on periphery, in groove Oblique T-shaped is processed into equipped with sealing, inside it, inclined-plane towards oblique upper, its external process is in the arc-shaped and arc surface through abrasionproof at Reason.

3. oil drilling remote control diameter variable stabilizer according to claim 1, it is characterized in that conversion seat（20）It is a pipe Shape, its lower surface is machined with equally distributed four radial direction screw inclined planes and four radial direction perpendiculars, reducing positioning body（22） It is a circular tube shaped, there are equally distributed four radial direction screw inclined planes and four radial direction perpendiculars in its upper surface, and its underpart has Two two short four supporting legs of length of even distribution, the lower surface of supporting leg is horizontal plane, before be radial direction perpendicular, behind be footpath To screw inclined plane, there are a boss, positioning seat in its endoporus middle part（24）It is a circular tube shaped, its top has equally distributed two deep two Shallow four grooves, the bottom of groove is horizontal plane, before be radial direction perpendicular, behind be radial direction screw inclined plane, conversion seat （20）, reducing positioning body（22）, positioning seat（24）Surface is through abrasionproof cure process.

4. oil drilling remote control diameter variable stabilizer according to claim 1, it is characterized in that signal valve seat（6）It is a pipe Shape, endoporus has a step, and three crescent holes are provided with end face, and cylindrical middle part is each in the middle part in each two crescent hole One radial screw bore of processing, signal valve head（7）For one is cylindric, outer circular top part is a boss, and boss has downwards an annular groove, Bottom is circular conical surface, jackscrew（5）By signal valve head（7）With signal valve seat（6）It is fixed as one, signal valve pocket（8）It is a thin-walled Circular tube shaped, top is cone, signal valve head（7）With signal valve pocket（8）Formed by hard alloy or Ceramic manufacturing.

5. the oil drilling remote control diameter variable stabilizer according to claim 1 or 4, it is characterized in that power piston（9）With core Axle（14）It is threadably secured and is integrated, signal valve pocket（8）It is bonded in power piston（9）Endoporus top, cushion rubber（10）Load dynamic Power piston（9）In annular groove on lower stage terrace, power piston（9）It is a circular tube shaped, periphery top is machined with outer six sides Or outward from all directions, periphery bottom is machined with annular groove, groove has a boss built with sealing and wear ring, endoporus middle part, and top adds Into conical bore, bottom is machined with internal thread and annular groove to work, and groove is built with sealing.

6. the oil drilling remote control diameter variable stabilizer according to claim 1,2 or 3, it is characterized in that mandrel（14）It is a circle Tubulose, upper end is machined with external screw thread, and its middle part next coming in order is machined with a step, boss annular groove with together with, step Below oblique orbit is filled with successively（17）, gland（15）With the spring seat of honour（12）, reducing positioning body is covered at boss lower end（22）, by Reducing positioning body（22）The upper surface positioning of endoporus boss, is filled with back-up ring B in annular groove（26）, back-up ring B（26）Positioned with reducing Body（22）Thrust bearing B is filled between the lower surface of endoporus boss（23）, mandrel（14）Insert bottom pipe nipple in lower end（33）It is interior Hole.

7. the oil drilling remote control diameter variable stabilizer according to claim 1,2 or 3, it is characterized in that cushion rubber（10）With spring The seat of honour（12）Between be filled with thrust bearing A（11）, the spring seat of honour（12）With spring lower seat（16）Between be filled with spring A（13）, tiltedly Track（17）With conversion seat（20）Between be filled with spring B（19）, compensating piston（28）It is a circular tube shaped, on its endoporus and periphery There is annular groove, there is sealing in groove, internal thread, two gag lever posts are machined with lower surface（29）It is threadedly secured to its lower end It is overall to load support set in screwed hole on face（27）With mandrel（14）Annular space.

8. oil drilling remote control diameter variable stabilizer according to claim 1, it is characterized in that bottom pipe nipple（33）It is a circle Tubulose, upper and lower ends are threaded, and annular groove is machined with the inner headed face of top, and groove is built with sealing and wear ring, and bottom is short Section（33）By screw thread and housing（1）It is fixed as one.

9. the oil drilling remote control diameter variable stabilizer according to claim 1,3 or 8, it is characterized in that Positioning screw A（21） By conversion seat（20）With housing（1）It is fixed as one, Positioning screw B（25）And support set（27）By positioning seat（24）With housing （1）It is fixed as one, Positioning screw C（30）With bottom pipe nipple（33）Make support set（27）On three radial holes and screen pack （31）It is corresponding, support set（27）It is a circular tube shaped, its three upper and lowers of radial hole respectively have one annular groove on periphery, There is sealing in groove.

10. oil drilling remote control diameter variable stabilizer according to claim 1, it is characterized in that Positioning screw A（21）, positioning Screw B（25）With Positioning screw C（30）Front end be roundlet column, middle part is threaded, and rear end is big cylindric, big cylinder There is annular groove on section periphery, have sealing in groove, equipped with Positioning screw A（21）, Positioning screw B（25）With Positioning screw C（30） Hole in be machined with a step, step outside is macropore, is threaded in the hole inside step, the screw thread respectively with it is fixed Position screw A（21）, Positioning screw B（25）, Positioning screw C（ 30）Middle part is screwed, equipped with screen pack（31）With back-up ring C （32）Hole in have annular groove, back-up ring C is filled with groove（32）.

11. oil drilling remote control diameter variable stabilizers according to claim 1, it is characterized in that conversion seat（20）Lower surface adds Work has equally distributed six radial direction screw inclined planes and six radial direction perpendiculars, reducing positioning body（22）Upper surface has uniform point There are six supporting legs of equally distributed long, medium and short six radial direction screw inclined planes and six radial direction perpendiculars of cloth, its underpart, Positioning seat（24）Top have it is equally distributed it is deep, in, shallow six grooves.