CN201502326U - Double-slider continuous whipstock - Google Patents
Double-slider continuous whipstock Download PDFInfo
- Publication number
- CN201502326U CN201502326U CN2009203105616U CN200920310561U CN201502326U CN 201502326 U CN201502326 U CN 201502326U CN 2009203105616 U CN2009203105616 U CN 2009203105616U CN 200920310561 U CN200920310561 U CN 200920310561U CN 201502326 U CN201502326 U CN 201502326U
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- whipstock
- continuous
- stator
- slider
- utility
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Abstract
The utility model discloses a two slider continuous whipstock. To continuous whipstock job stabilization degree among the prior art not high, the during operation produces the nonadjustable defect of whipstock direction skew and whipstock intensity easily, the utility model provides a continuous whipstock has two upper and lower installation opposite direction's wedge slider, and the whipstock during operation can stabilize the whipstock position greatly through the cooperation of two upper and lower sliders, and furthest restriction angle displacement prevents to destroy the emergence of the directional position condition. On this basis, through increasing a set of hinge hookup, divide into two parts about the whipstock, thereby the part can incline certain angle and increase the whipstock intensity down to can adjust the whipstock intensity through adjusting the skew angle in advance, guaranteed higher degree of coinciding between actual whipstock direction and the design direction from this. Compared with the prior art, the utility model has the advantages of simple structure, convenient processing, high maneuverability when using, and can adapt to the needs of multiple directional drilling operation types.
Description
Technical field
The utility model relates to the continuous whipstock of a kind of double-slider, particularly relates to the continuous whipstock of a kind of mechanical type that uses in controlled directional drilling.
Background technology
The continuous whipstock of mechanical type is the crucial utensil that is widely used in controlled directional drilling construction, can be applicable to branch directional hole at the bottom of directional hole at the bottom of geological prospecting borehole well straightening (entangling azimuth and drift angle), the work order, the porous; In complicated drilling accident, walk around the accident drilling tool and continue construction downwards, do not stay hidden danger, filling mining rock core; In mine construction, the special engineered hole of constructing is as several work types such as tunnel gravity vent, vertical shaft freezing hole, drop shaft pilot hole and sealing injected holes.In operation, therefore the applicable performance of whipstock height also has influence on the success or failure of subsequent job owing to having influence on the drilling quality that drillhole curvature significantly impacts directional drilling.
Application number is 88218873.9, name was called the Chinese utility model patent of " continuously whipstock stator rotor detent mechanism " and monograph " controlled directional brill control techniques " (1994, the Geology Publishing House) in the chapter 6, a kind of " the continuous whipstock of LZ type " disclosed, this continuous whipstock is made up of inner rotator and outer stator, outer stator comprises outer tube, last wedge, wedge block, following wedge etc., and inner rotator comprises joint, driving shaft, driven axle, short tube, drill bit etc.Between rotor and the stator clutch structure is arranged.After outer stator fixes by slide block and hole wall location, when axial compression lower edge borehole axial moves, the revolution of movement means drill bit.Because the effect of wedge block and hole wall makes drill bit produce side direction building force N, realizes continuously changing the purpose of boring direction.The continuous whipstock of this class adopts the single sliding block supporting form, and whipstock theory is the bit lateral aggressivity hole wall, and the working stability degree is not high, causes the skew of deflecting direction during work easily because produce angular displacement; And the continuous whipstock deflecting of this class intensity is non-adjustable, to the control deficiency of drilling track.
The utility model content
The purpose of this utility model is exactly at the deficiencies in the prior art, provide a kind of in operation degree of stability height and the adjustable continuous whipstock of mechanical type of deflecting intensity.
For achieving the above object, the technical solution of the utility model is as follows:
The continuous whipstock of a kind of double-slider, comprise rotor portion and stationary part, between rotor portion and the stationary part clutch is arranged, described rotor portion comprises driving shaft 11, driven axle 12, short tube 13 and drill bit 14, has axle sleeve 15 to connect between driving shaft 11 and the driven axle 12; Described stationary part comprises single action shell 21, spring 22, stator 23, sliding block 24 and stator 25, connects for keyway between sliding block 24 and the adjacent stators 23,25; It is characterized in that: stationary part also comprises stator 26 and top shoe 27, connects for keyway between top shoe 27 and the adjacent stators 23,26; Described sliding block 24 is a wedge block with top shoe 27, and installation direction is opposite.
The continuous whipstock of mechanical type is to realize the continuously-directional deflecting by specialized agency, is made up of stator and rotor two large divisions usually.When continuously whipstock was worked in the hole, the rotor portion transfer torque drove the drill bit revolution, at the bottom of the broken hole and the hole wall rock, realized deflecting.The effect of stator is location and guiding, is positioned a certain direction on the one hand, does not turn round, do not produce the radial angle displacement, guarantees that rotor portion creeps into deflecting towards predetermined direction; On the other hand, because the torsional moment that rotor portion produces because of friction when revolution may make stationary part deflect and destroy orientation, therefore stationary part need be with rotor portion along boring drilling direction advanced in unison, to guarantee the stable of orientation.Be the functional requirement of above-mentioned two aspects that satisfy stationary part, stationary part must cooperate effective fixing measure, accurately, does not produce skew to guarantee the deflecting direction.
The continuous whipstock of the double-slider that the technical program provides has two wedge blocks that installation direction is opposite up and down, and the effect of top shoe mainly is to rock when preventing whipstock work, and limiting angular displacement is to prevent to destroy original directional bearing to greatest extent; Sliding block has two aspect effects, and one provides building force, and the 2nd, stablize the deflecting orientation.
On the basis of said structure, the continuous whipstock that the technical program provides also can increase by one group of hinge-coupled, thus whipstock is divided into two parts up and down, and top is the whipstock body, and the bottom is mobilizable deflecting parts.By hinge-coupled, the lateral force that acts on the sliding block can form the crooked certain angle of the relative whipstock body of deflecting parts one " bent sub ", thereby increases deflecting intensity.And " bent sub " crooked angular dimension can be adjusted before the operation needs are at the bottom of whipstock is put into the boring hole in advance, and the angle of bend of adjustment is big more, and the deflecting intensity of whipstock is also high more.
Compared with prior art, the beneficial effects of the utility model are: at the bottom of the continuous whipstock work of the double-slider that the technical program provides basic principle was asymmetric destruction hole, whipstock more of the prior art was structurally more reasonable.Be difficult for during work angular displacement takes place, can increase substantially the stability of deflecting direction, can solve the deficiency that existing whipstock in use exists; The deflecting parts adopt " bent sub " form, change deflecting intensity by adjusting angle of bend, and are not only easy to use, and more favourable to drilling track control, improved actual deflecting direction and design degree of agreement.The continuous whipstock that the technical program provides is simple in structure, easy to process, use the operability height, can adapt to the needs of polytype directional drilling operation.
Description of drawings
Fig. 1 is the continuous whipstock structure chart of double-slider.
Fig. 2 is the continuous whipstock working state schematic representation of double-slider.
Fig. 3 is the continuous whipstock structure chart of double-slider that door assembly with hinge and glass in right hand and left connects.
Fig. 4 is the continuous whipstock working state schematic representation of double-slider that door assembly with hinge and glass in right hand and left connects.
Number in the figure is as follows:
11 driving shafts, 23 stators
12 driven axles, 24 sliding blocks
13 short tubes, 25 stators
14 drill bits, 26 stators
15 axle sleeves, 27 top shoes
21 single action shells, 3 hinges
22 springs
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is further described.
Embodiment one
As shown in Figure 1 and Figure 2, make the continuous whipstock of a kind of double-slider.
The continuous whipstock of double-slider comprises rotor portion and stationary part, between two parts clutch is arranged.Rotor portion comprises driving shaft 11, driven axle 12, short tube 13 and drill bit 14, has axle sleeve 15 to connect between driving shaft 11 and the driven axle 12; Stationary part comprises single action shell 21, spring 22, stator 26, top shoe 27, stator 23, sliding block 24 and stator 25 from top to bottom successively.For keyway connects, slide block and stator adjacent edge agree with between upper and lower slide block 27,24 and the stator 26,23,25.Upper and lower slide block 27,24 is wedge shape, and installation direction is opposite.
When the continuous whipstock of double-slider was in the free state of not working, top shoe 27 and sliding block 24 were in contraction state.When continuous whipstock is transferred to the boring hole by directional bearing at the bottom of, and when the plus-pressure P of top, pressure P is delivered on stator 26 and the stator 23 by driving shaft 11, single action shell 21, spring 22, top shoe 27 laterally protrudes with sliding block 24 and contacts borehole wall, protrusion direction is opposite, and respectively hole wall is produced opposite lateral pressure Q1 and the Q2 of direction.During operation, the effect of top shoe 27 is that whipstock stator 23 is produced braking torque, prevents that whipstock generation angular displacement from destroying original directional bearing; The effect of sliding block 24 is that stator 23 and stator 25 generation braking torques are prevented its rotation, and lateral pressure Q2 promotes deflecting bit 14 contact hole walls.When driving shaft 11 drove driven axle 12, short tube 13 and drill bit 14 revolutions, drill bit 14 also constantly cut borehole wall at the bottom of the cutting boring hole.After the deflecting end-of-job left at the bottom of the hole, top shoe 27 and sliding block 24 were returned to original position.
Embodiment two
Shown in Fig. 3,4, make the continuous whipstock of a kind of double-slider, no longer repeat with embodiment one something in common, its difference is: stator 23 comprises two parts up and down, has hinge 3 to connect between two parts.Whipstock has been divided into two parts up and down thus continuously, and top is the whipstock body, and the bottom is the deflecting parts.Connect by hinge 3, continuous whipstock body and deflecting parts two parts are constituted flexibly connect, the deflecting parts can rotate in the plane around hinge.Like this, the deflecting parts can form one " bent sub " with respect to the crooked certain angle of whipstock body, increase deflecting intensity.During operation, can adjust α angle size according to the engineering design needs earlier, put into the construction of construction hole again.The α angle that is provided with is big more, and angle of bend γ is also big more, and the deflecting intensity of whipstock is also high more.
Claims (3)
1. continuous whipstock of double-slider, comprise rotor portion and stationary part, between rotor portion and the stationary part clutch is arranged, described rotor portion comprises driving shaft (11), driven axle (12), short tube (13) and drill bit (14), has axle sleeve (15) to connect between driving shaft (11) and the driven axle (12); Described stationary part comprises single action shell (21), spring (22), stator (23), sliding block (24) and stator (25), connects for keyway between sliding block (24) and the adjacent stators (23,25); It is characterized in that: described stationary part also comprises stator (26) and top shoe (27), connects for keyway between described top shoe (27) and the adjacent stators (23,26); Described sliding block (24) is a wedge block with top shoe (27), and installation direction is opposite.
2. continuous whipstock according to claim 1 is characterized in that: described stator (23) comprises two parts up and down, has hinge (3) to connect between two parts.
3. continuous whipstock according to claim 1 and 2 is characterized in that: described top shoe (27), sliding block (24) agree with stator (26,23,25) adjacent edge respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203105616U CN201502326U (en) | 2009-09-16 | 2009-09-16 | Double-slider continuous whipstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203105616U CN201502326U (en) | 2009-09-16 | 2009-09-16 | Double-slider continuous whipstock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502326U true CN201502326U (en) | 2010-06-09 |
Family
ID=42453262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203105616U Expired - Fee Related CN201502326U (en) | 2009-09-16 | 2009-09-16 | Double-slider continuous whipstock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201502326U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104417764A (en) * | 2013-08-30 | 2015-03-18 | 中国飞机强度研究所 | Loading equipment supporting device |
| CN110566124A (en) * | 2019-09-26 | 2019-12-13 | 中化地质矿山总局山东地质勘查院 | Drilling deviation correction comprehensive technical method |
-
2009
- 2009-09-16 CN CN2009203105616U patent/CN201502326U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104417764A (en) * | 2013-08-30 | 2015-03-18 | 中国飞机强度研究所 | Loading equipment supporting device |
| CN110566124A (en) * | 2019-09-26 | 2019-12-13 | 中化地质矿山总局山东地质勘查院 | Drilling deviation correction comprehensive technical method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20120916 |