CN206352480U - Steering drilling tool backup executing agency and drilling tool - Google Patents

Abstract

The utility model discloses a kind of steering drilling tool backup executing agency, including：Back up plate；One end of back up plate is articulated on drill body；Stroller, the stroller is arranged in the groove of drill body；Drive device, the drive device is connected with stroller, drives axial movement of the stroller along drill body in groove；Support bar, described support bar one end is pivotally connected with stroller；The other end is pivotally connected with back up plate, and when causing stroller motion, support bar can will push against plate and prop up.The utility model additionally provides the drilling tool with above-mentioned backup executing agency.

Description

Steering drilling tool backup executing agency and drilling tool

Technical field

The utility model is related to a kind of backup executing agency, particularly a kind of steering drilling tool backup executing agency and including The drilling tool of the backup executing agency.

Background technology

As oil and gas development, geological prospecting difficulty are continued to increase, drilling engineering is faced with bigger challenge, traditional cunning The navigational drilling techniques such as dynamic drilling have been difficult the technical requirements for meeting modern drilling process.In recent years, automatic vertical drilling system, The trend of era development has been complied with the application of rotary steering system, multiple in vertical deep-well, directional well, extended reach well, horizontal well etc. Miscellaneous structure well field obtains huge technological contribution.At present, because pushing type executing agency has the characteristics of being oriented to rapid reliable, lead To the executing agency that pushing type is used well system, i.e., back up plate or the backup wing are in top hole deviation induction control system and hydraulic pressure more Push the borehole wall under the control of system so that drilling tool obtains the reaction force of the borehole wall, exacerbates cutting of the drill bit in borehole wall opposite side Effect, plays a part of controlling well track, realizes orientation, guide digging.

Existing backup mechanism is generally the structure design that the backup wing or back up plate are ejected by the backup piston of its underpart, and such sets The backup wing or back up plate of meter are separated after releasing with drill body, and the rock dust in annular space easily enters backup mechanism and occurs jam, shadow The normal of drilling tool is rung to use.It is in existing backup executing agency to there is consumable accessory, it is impossible to bear the vibration in drilling process more And alternate stress, easily occur the problems such as screw loosening, pin are broken, and backup work is installed using the backup wing or back up plate bottom The structure of plug, causes radial dimension small big, is unfavorable for designing and developing for minor diameter drilling tool.Moreover, existing backup mechanism sheet Body is passive design, and backup power size depends on the ejecting force of backup piston, and backup mechanism does not possess backup power regulatory function, The scope of application is limited.In addition, using planar design the existing backup wing or back up plate, only having the backup wing or backup edges of boards during backup more Edge is contacted with the borehole wall, and its contact area is smaller, causes stabilization when back up plate or the backup wing and borehole wall serious wear, drilling tool work The problems such as property is poor, hole quality is poor.

Utility model content

The purpose of this utility model is to provide a kind of steering drilling tool backup executing agency, its backup action executing is rapid, Backup wellbore stability is reliable.

To achieve these goals, in a first aspect, the utility model provide a kind of steering drilling tool backup executing agency, Including：

Back up plate；One end of back up plate is articulated on drill body；

Stroller, the stroller is arranged in the groove of drill body；

Drive device, the drive device is connected with stroller, drives stroller to be transported in groove along the axial direction of drill body It is dynamic；And

Support bar, described support bar one end is pivotally connected with stroller；The other end is pivotally connected with back up plate, and when causing stroller motion, Support bar can will push against plate and prop up.

Alternatively and preferably, the stroller includes being provided with the wheel contacted with groove floor on car body, car body, is driving Under dynamic device effect, wheel can be moved with motor vehicles bodies in groove, and cause support bar is pivoted to prop up.

Alternatively and preferably, pivot mounting is configured with the middle part of the car body, the first pivot is installed thereon, propped up One end of strut is set on the first pivot, and the other end is pivotally connected by the middle part of the second pivot and back up plate.

Alternatively and preferably, the two ends of the second pivot are provided with screwed hole corresponding with its axial direction, are installed in screwed hole Plug wire.

Alternatively and preferably, first position restrainer of the stroller both sides provided with limitation stroller along drill body radial motion Structure.

Alternatively and preferably, first position-limit mechanism includes groove of the construction in car body both sides, and screw passes through drilling tool Screwed hole on body extend into drill body and is pressed on the groove of the car body both sides.

Alternatively and preferably, the front end of the stroller is provided with the second position-limit mechanism, and the second position-limit mechanism limitation stroller exists Maximum release distance in groove, and ensure to release under distance in the maximum, the bottom of back up plate is without departing from drill body Produce space.

Alternatively and preferably, second position-limit mechanism includes covering on the gag lever post for being arranged on stroller front end, gag lever post If spring, during groove end contact in stroller compression spring to gag lever post and drill body, that is, reach it is described it is maximum release away from From.

Alternatively and preferably, the plate face of the back up plate is arc.

Second aspect, the utility model additionally provides a kind of drilling tool, including the drilling tool backup described in multiple first aspects Executing agency, all EDS maps of the backup executing agency along drill body.

A kind of drilling tool backup executing agency that the utility model is provided, is arranged in the groove of drill body, including push away Backup plate, support bar and stroller, stroller are moved under the driving of drive device in groove.Stroller passes through support bar and back up plate pivot Connect, the end of back up plate is articulated on drill body, when stroller is promoted, support bar rise will push against plate and prop up realization to well The backup of wall, this backup mode is no longer rely on piston according to lever principle, directly rapid, the friction resistance in backup action executing ground Power is small, and backup is solid and reliable.

Brief description of the drawings

The dimensional structure diagram for the steering drilling tool backup executing agency that Fig. 1 is provided by the utility model embodiment；

The steering drilling tool that Fig. 2 is provided by the utility model embodiment cuts open structural representation with the master of backup executing agency；

Fig. 3 is the inner side dimensional structure diagram of the back up plate of backup executing agency；

Fig. 4 is the outside dimensional structure diagram of the back up plate of backup executing agency；

Fig. 5 is the stroller body construction schematic diagram of backup executing agency；

Fig. 6 is the structural representation of the support bar of backup executing agency；

Fig. 7 is the dimensional structure diagram under the maximum release location state of backup executing agency.

In figure：

1- back up plates；101- pin-and-holes；102- flanges；103- pin-and-holes；104- tops cambered surface；105- bottoms cambered surface；106- spiral shells Pit；107- ends cambered surface；2- strollers；201- car bodies；202- wheels；203- through holes；204- pin-and-holes；205- grooves；206- leads to Hole；207- pin-and-holes；3- support bars；301- through holes；302- through holes；4- drill bodies；401- flanges；402- end faces；5- screws；6- Push rod；The pivots of 7- first；The pivots of 8- second；The pivots of 9- the 3rd；10- plug wires；11- gag lever posts；12- springs；13- screws；14- is pressed Block；15- bearing pins.

Embodiment

In order that those skilled in the art more fully understand the utility model scheme, below in conjunction with the accompanying drawings and specific implementation The utility model is described in further detail for mode.

The steering drilling tool backup executing agency that the utility model embodiment is provided, for pushing away the borehole wall in NDS Carry out backup so that drilling tool obtains the reaction force of the borehole wall, exacerbates shear action of the drill bit in borehole wall opposite side, plays control The effect of well track, realizes orientation, guide digging.

Backup executing agency is arranged on the side face of drill body, and quantity can be multiple, and be evenly distributed.For example Can be spaced apart in 90 ° or 120 °.As shown in figures 1 to 6, each backup executing agency mainly includes back up plate 1, stroller 2nd, support bar 3 and drive device (in order to see internal structure clearly in Fig. 1, eliminating back up plate).Wherein, stroller 2 is arranged on drilling tool In the groove of body 4, and it is connected with drive device, in the presence of drive device, stroller 2 can be in groove along drilling tool sheet The axial movement of body 4.One end of support bar 3 is articulated on stroller 2, and the other end is articulated in the inner side of back up plate 1, the one of back up plate Individual end (upper end) is articulated on drill body 4, can be pivoted along this drill body 4.So, stroller 2, support bar 3 and backup Plate 1 is formed a linkage based on lever principle, and when drive device promotes stroller motion, pivot occurs for support bar 3 Turn and will push against plate 1 to prop up, be brought to abutment against on the borehole wall.This backup execution action does not need piston, directly rapid, friction resistance Power is small, and backup is solid and reliable.

In certain embodiments, stroller 2 include car body 201 and the wheel 202 on car body 201, wheel 202 with Groove floor is rolling friction, thus resistance is smaller, and wheel 202 and car body 201 can be connected by bearing pin.It is specific as one Embodiment, the structure of car body 202 is in substantially flat, can so save the space in limited drill body.In car The strip through hole 203 of insertion car body is opened up at the corner of body, the side wall of through hole 203 opens up pin-and-hole 204, wheel 202 is passed through Bearing pin 15 shown in Fig. 1 is arranged in each strip through hole 203, can so avoid wheel 202 with it is recessed in drill body 4 Groove is contacted, and reduces frictional resistance.Preferably, radially transported along drill body 4 provided with limitation stroller in the both sides of car body 201 of stroller The first dynamic position-limit mechanism.First position-limit mechanism can include being built into groove of the car body middle part surface close to both sides of the edge 205 and the screw 5 that is penetrated from the screwed hole of drill body, the ailhead of screw 5 is pressed on groove 205, to limit car body 201 Radial motion.The drive device for driving stroller 2 to move includes push rod 6, and one end of push rod 6 is connected with the car body 201 of stroller 2, separately The drive device commonly used in the plant equipment such as one end and hydraulic mechanism, motor is connected (not shown).It is different from existing backup Mechanism force application part (such as backup piston) is located at the design structure of the backup wing or back up plate bottom, the force of the backup executing agency Part is located at the top of push rod 6, can largely discharge radial space, be conducive to the design of minor diameter steering tool with grinding Hair.

Two through holes be arrangeding in parallel 206 can be opened up at the middle part of car body 201, each through hole 206 respectively sets a branch Strut 3, and the side wall of through hole 206 is provided with pin-and-hole 207, the bottoms of two support bars 3 also have pin-and-hole 301 and with car body The position of pin-and-hole 207 correspondence, by the first pivot 7 (such as straight pin) through pin-and-hole 207,301 so as to by two support bars 3 and car Body 201 is pivotally connected.It is constructed out in two grooves generally corresponded to the position of support bar 3, groove and also sets in the inner side of back up plate 1 There is pin-and-hole 101, the upper end of two support bars 3 has the corresponding pin-and-hole 302 in position, and is connected to by the second pivot 8 in groove, So as to which support bar 3 can just be pivoted between stroller 2 and back up plate 1.The upper end of back up plate 1 is constructed out two flanges 102, convex The pin-and-hole 103 of insertion is offered on edge 102 along side, the interval between two flanges 102 is constructed on drill body 4 The flange 401 of matching, and also along pin-and-hole of the side provided with the corresponding insertion in position on the flange 401.The upper end of back up plate 1 It is connected to by the 3rd pivot 9 on the flange 401, realizes pivot of the back up plate around drill body 4.In order to prevent each pivot from existing Backup executing agency is out of stock when working, and briquetting 14 is provided with the two ends of the 3rd pivot 9, and is fixed with screw 13, in back up plate 1 The two ends (i.e. the two ends of the second pivot 8) in portion are provided with screwed hole 106 corresponding with its axial direction, and plug wire 10 is installed in screwed hole 106. The size of the consumable accessorys such as bearing pin (i.e. each pivot), the screw used in the backup executing agency that the present embodiment is provided can be according to specific Use requirement carries out flexible design, meanwhile, though the mechanism has used screw element, it is not main stress part, only puts Use requirement can be met after pine processing, therefore the reliability of the backup executing agency is greatly promoted.

Existing backup executing agency generally uses the piston backup borehole wall, and executing agency's blocked portion often occurs during work Situation.Inventor has found that the reason for causing this blocked portion situation be that piston is kept completely separate with drill body so that piston and Space is formd between drill body, now the aerial bulky grain landwaste of well inner ring will enter inside backup executing agency, right The action of executing agency causes to hinder.To solve this problem, in a preferred embodiment, the front end of stroller 2 is provided with the second limit Position mechanism, the second position-limit mechanism limits maximum release distance of the stroller 2 in groove, and ensures to release under distance in the maximum, The bottom of back up plate 1 produces space without departing from drill body.Space will not be produced during due to being performed in backup, just It can prevent bulky grain landwaste from entering inside backup executing agency, so as to avoid executing agency's action blocked portion, the feelings of failure Condition occurs.In certain embodiments, the second position-limit mechanism includes being arranged on car body front end gag lever post 11, the outer sheath of gag lever post 11 Provided with spring 12 and fixation so that spring 12 will not be compressed and be arched upward.When backup executing agency works, the compression bullet of stroller 2 Spring 12, until when gag lever post 11 contacts the groove end face 402 in drill body, that is, reaching what stroller 2 can move ahead in groove Ultimate range, herein under distance, although back up plate is propped up by support bar 3, the protrusion being upturned in surface of drill stem formation bottom Shape, but the inside edge of back up plate 1 should be stilled remain in the groove of drill body 4, to cause back up plate 1 and not bore Tool body 4 is separated, it is to avoid formed space (as shown in Figure 7).Because back up plate 1 will not be pushed out drill body groove all the time Design, the bulky grain landwaste isolated in drilling fluid, only allow liquid drilling fluid enter backup executing agency inside so that Bearing pin is all the time under the lubrication in drilling fluid.The design that maximum releases distance can be by the length of gag lever post 11, support bar 3 The restriction of distance of pivot points etc. reaches the effect above in length and support bar 3, and the concrete numerical value of distance can be according to drilling tool The actual adjustment of the size of size and borehole space, do not constitute to limitation of the present utility model.From.In addition, when backup mechanism When not working, stroller 2 is pushed back initial position by the spring 12 of compression, it is ensured that back up plate 1 is in fit-state with drill body 4, To prevent that bit freezing occurs during making a trip.

The outer surface of back up plate 1 is preferably arc, that is, constitutes arc back up plate.The cambered surface of back up plate 1 be divided into above and below two Point, top cambered surface 104 is longer, bottom cambered surface 105 is shorter (end is end cambered surface 107), and its middle and lower part cambered surface 105 is used for and well Wall is directly contacted.The cambered surface radius of bottom cambered surface 105 with borehole wall radius always, it is ensured that during contact bottom cambered surface 105 with the borehole wall In fit-state, so as to add contact area, surface pressure is reduced, and then reduces back up plate 1 and is worn and torn with the borehole wall, enters one Step improves the service life of backup executing agency, simultaneously effective improves the stability during drilling tool backup borehole wall, and can obtain Obtain hole quality well.The bottom arc-shaped surface of back up plate 1 can be used tungsten carbide button's block, PDC wear-resistant blocks or built-up welding resistance to The modes such as break-in layer gold lift wearability.In the present embodiment, the backup executing agency is by drill body 4, push rod 6, stroller 2, branch Strut 3, back up plate 1, cylindrical pin shape into linkage, on top force application mechanism be applied to push rod 6 power it is constant when, according to lever Principle, the pitch-row (as shown in Figure 6) of support bar 3 just determines the power size of the backup arc plate bottom circular arc backup borehole wall, therefore this is pushed away The need for can be according to actual well drilled technique and formation condition by executing agency, by changing the support bar of different pitch-rows to backup power It is adjusted, thus with more preferably applicability.

The backup executing agency that the utility model embodiment is provided, can apply among various drilling tools, as shown in Figure 1 An as part for drilling tool, backup executing agency include it is multiple, around the circumferentially distributed of drill body surface.Wherein, drilling tool The type of system includes but is not limited to following several：

1st, for automatic vertical drilling system

The backup executing agency can be used for pushing type automatic vertical drilling system, when hole deviation induction installation measures well track During run-off the straight, under the control of top electric-control system and force application mechanism, thrust is applied to push rod in the way of hydraulic pressure or machinery, And then promote the backup executing agency to push borehole wall flash to, in the presence of borehole wall reaction force, drill bit is in the low side side of well Aggravation cutting, is that drilling direction is replied vertically.

2nd, for rotary steering system

The backup executing agency can be used for rotary steerable drilling system, finger of the rotary steerable drilling system in Ground Engineer Under order, apply thrust from force application mechanism to push rod, the backup executing agency is pushed the borehole wall to, realize directional drilling or orientation drill Enter.

3rd, for no-dig technique steering drilling tool

The backup executing agency can be used for non-development orientation drilling tool, and non-development orientation drilling tool is under the control of drilling engineer Push the backup executing agency to the borehole wall and realize no-dig technique guide digging.

4th, other possible service conditions

The backup executing agency can be according to the design requirement of drilling tool or other equipments, applied to other service conditions.

Steering drilling tool provided by the utility model is described in detail with backup executing agency and drilling tool above.This Apply specific case in text to be set forth principle of the present utility model and embodiment, the explanation of above example is It is used to help understand core concept of the present utility model.It should be pointed out that for those skilled in the art, On the premise of not departing from the utility model principle, some improvement and modification can also be carried out to the utility model, these improve and Modification is also fallen into the utility model scope of the claims.

Claims (10)

1. steering drilling tool backup executing agency, it is characterised in that including：

Back up plate, one end of back up plate is articulated on drill body；

Stroller, the stroller is arranged in the groove of drill body；

Drive device, the drive device is connected with stroller, drives axial movement of the stroller along drill body in groove；With And

Support bar, described support bar one end is pivotally connected with stroller；The other end is pivotally connected with back up plate, and when causing stroller motion, support Bar can will push against plate and prop up.

2. steering drilling tool according to claim 1 backup executing agency, it is characterised in that the stroller includes car body, The wheel contacted with groove floor is installed, under drive device effect, wheel can be moved with motor vehicles bodies in groove on car body, And cause support bar is pivoted to prop up.

3. steering drilling tool according to claim 2 backup executing agency, it is characterised in that the middle part of the car body is by structure Pivot mounting is produced, the first pivot is installed thereon, one end of support bar is set on the first pivot, and the other end passes through second The middle part pivot joint of pivot and back up plate.

4. steering drilling tool according to claim 3 backup executing agency, it is characterised in that the two ends of the second pivot are provided with Screwed hole corresponding with its axial direction, installs plug wire in screwed hole.

5. steering drilling tool according to claim 1 backup executing agency, it is characterised in that the stroller both sides are provided with limit First position-limit mechanism of the stroller processed along drill body radial motion.

6. steering drilling tool according to claim 5 backup executing agency, it is characterised in that the first position-limit mechanism bag Groove of the construction in car body both sides is included, screw is extend into drill body by the screwed hole on drill body and is pressed in the car On the groove of body both sides.

7. steering drilling tool according to claim 1 backup executing agency, it is characterised in that the front end of the stroller is provided with Second position-limit mechanism, the second position-limit mechanism limits maximum in groove of stroller and releases distance, and ensure maximum release away from From under, the bottom of back up plate produces space without departing from drill body.

8. steering drilling tool according to claim 7 backup executing agency, it is characterised in that the second position-limit mechanism bag Include in sheathed spring on the gag lever post for being arranged on stroller front end, gag lever post, stroller compression spring to gag lever post and drill body During groove end contact, that is, reach the maximum release distance.

9. according to any described steering drilling tool backup executing agencies of claim 1-8, it is characterised in that the back up plate Plate face is arc.

10. a kind of drilling tool, it is characterised in that perform machine with backup including any described steering drilling tools of multiple claim 1-9 Structure, all EDS maps of the backup executing agency along drill body.