CN103132925B - Downhole motive driller capable of improving drill column stretching capacity - Google Patents
Downhole motive driller capable of improving drill column stretching capacity Download PDFInfo
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- CN103132925B CN103132925B CN201310092202.9A CN201310092202A CN103132925B CN 103132925 B CN103132925 B CN 103132925B CN 201310092202 A CN201310092202 A CN 201310092202A CN 103132925 B CN103132925 B CN 103132925B
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Abstract
The invention discloses a downhole motive driller capable of improving drill column stretching capacity. The downhole motive driller comprises an upper thrust joint, an upper conic clamp, sleeves, an idler wheel, an idler wheel location inner lining, a transmission mechanism, a worm mandrel, a lower thrust joint, a lower conic clamp, a diversion trench and the like. The upper thrust joint and the worm mandrel are in threaded connection so as to transmit drilling torsion and axial compressive force and are matched with the sleeves and the lower thrust joint so as to form a clamping mechanism with the upper conic clamp and the lower conic clamp, wherein the upper conic clamp and the lower conic clamp are used for installing a motive sealing mechanism. The three matched sleeves are clamped tightly by the upper conic clamp and the lower conic clamp through a key groove. Six worm gears in three groups arranged at a phase angle of 120 degrees are meshed with the worm mandrel. The torsion is transmitted to the idler wheel in one way through a worm and gear mechanism and a transmission mechanism so that an axial drawing mechanism is formed. When rotary drilling is performed, a drill column drives the axial drawing mechanism to move forwards, the sleeves do not rotate and the drawing drill column stretches along the axial direction. The downhole driller capable of improving the drill column stretching capacity has the function of improving stretching capacity of a large displacement well or a horizontal well drill column and effect of antifriction and block reduction.
Description
Technical field
The present invention relates to a kind of for boring extended reach well or horizontal well, having and improving the mud motor that drill string extends ability.
Background technology
Extended reach well is the comprehensive embodiment of the technology such as directional well, horizontal well, deep-well, ultradeep well, application in conjunction with horizontal well technology not only improves well yield and oil gas field recovery ratio greatly, reduce oil and gas development cost, the powerful measure of marginal oil-gas reservoir especially, sea, beach Reservoir Development, but key character when creeping into---high frictional resistance, high moment of torsion, cause horizontal section length limited, inhibit further developing of this technology.Meanwhile, the insufficient accident causing complex accident even whole mouth well in down-hole to be scrapped of hole cleaning also happens occasionally.
Improve extended reach well, horizontal well extension ability and effectively reduce drag and torque, abundant wellbore clearance is that extended reach well, horizontal well technology are successfully crucial.Therefore design has invented one for boring extended reach well or horizontal well, has and improves the mud motor that drill string extends ability.The present invention, based on the mechanics of materials, engineering mechanics and hydrodynamics, by rational design, in conjunction with the principle drafting tool axial advancement of tractor, improves drill string extension ability in the wellbore also effectively clean well effectively.Simultaneously in conjunction with the design principle of non-rotating antifriction instrument, not only reduce the effective size of drilling rod in pivoting friction, reduce the frictional resistance at effective contact point place, more can reduce drill string torque.
Summary of the invention
Object of the present invention: provide a kind of and there is the instrument improving drill string down-hole extension ability, reduce frictional resistance, a kind of well dynamic instrument boring extended reach well or horizontal well of special proposition.
In order to achieve the above object, the present invention solves the technical scheme that this technical problem adopts and is:
A kind of have the mud motor improving drill string extension ability, comprise thrust joint (1), upper conical clip (2), guiding gutter (3), sleeve (4), inferior pyramidal clip (5), lower thrust joint (6), cover plate (7), roller positioning lining (8), roller (9), left helical gear (10), right helical gear (11), bevel gear (12), driven turnbarrel fixed support (13), driven turnbarrel (14), active rotation sleeve (15), active rotation sleeve fixed support (16), worm gear (17), dividing plate (18), spring (19), flexible mandrel (20), baffle plate (21), worm screw mandrel (22), bevel gear (12) is fixed in driven turnbarrel (14) one end, and one end is engaged with active rotation sleeve (15) by chisel teeth with a slope, and is installed on flexible mandrel (20), active rotation sleeve (15) other end installs worm gear (17), fix with dividing plate (18), spring (19) is installed on flexible mandrel (20) and goes up and be positioned between dividing plate (18) and baffle plate (21), by baffle plate (21) fixing spring (19), and can regulating spring (19) compressive strength, driven turnbarrel fixed support (13) and active rotation sleeve fixed support (16) are buckled in the groove of driven turnbarrel (14) and active rotation sleeve (15) respectively, be fixed in sleeve (4), realize active rotation sleeve (15) to turn clockwise, after driven turnbarrel (14), bevel gear (12), flexible mandrel (20) move axially a segment distance by right hand rule, turn clockwise together with active rotation sleeve (15), worm gear (17) is engaged by the helical tooth on worm screw mandrel (22) with worm screw mandrel (22), and rotating energy part when being crept into by drill string converts instrument axial thrust force to, worm screw mandrel (22) rotates and drives worm gear (17) to rotate, driven turnbarrel (14) is axially released by active rotation sleeve (15) by worm gear (17), bevel gear (12) is allowed to engage with left helical gear (10) and right helical gear (11) and to rotate, simultaneously by power transmission to left helical gear (10) and right helical gear (11), eventually passing power transmission shaft drives roller (9) to rotate, traction drill string advances, and this combined mechanism has the function of one-way expansion and unidirectional delivery moment of torsion.
Transmission mechanism one-way expansion unidirectional delivery moment of torsion, when on put put drill string or stop boring time, because bevel gear is separated with left and right helical gear, the moment of torsion of roller can not have a negative impact to sleeve.
Further provide the annexation of haulage gear, engage with left helical gear and right helical gear after bevel gear moves axially a segment distance simultaneously; Left helical gear is fixed on one end of a roller power transmission shaft, and right helical gear is fixed on one end of another roller power transmission shaft; The roller of left helical gear, right helical gear, two V belt translation axles is all positioned in roller positioning lining, and roller positioning lining to embed in the hole being located on sleeve and is screwed, and roller positioning lining arranges cover plate; Drive two rollers to travel forward during bevel-gear rotating simultaneously, form haulage gear, axial thrust force is provided.
A preferred scheme is, worm screw mandrel engages with three groups of six worm gears distributed by 120 °, phase angle, form six transmission mechanisms, it is the hole that 120 ° three groups six are identical that the circumference of three assembly trap cylinders arranges phase angle, in each hole, a roller positioning lining is installed, arranging like this can ensure that crawling wheel contacts with the borehole wall in any circumferential orientation, provides axial thrust force.
Bevel gear and worm gear are installed on respectively on driven turnbarrel and active rotation sleeve, driven turnbarrel and active rotation sleeve are installed on respectively and are fixed by screws on driven turnbarrel fixed support in sleeve and active rotation sleeve fixed support and keep coaxial by the flexible mandrel in axle center, and the spring that flexible mandrel one end is installed and baffle plate make transmission mechanism remain retracted state.To be screwed in roller positioning lining embedded hole, left helical gear is fixed on one end of a roller power transmission shaft, right helical gear is fixed on one end of another roller power transmission shaft again; The roller of left helical gear, right helical gear, two V belt translation axles is all placed in roller positioning lining, adds upper cover plate, and roller positioning lining and cover plate are screwed.Finally worm screw mandrel is rotated in sleeve, allow worm gear and worm engaging, to provide traction power.When worm screw mandrel turns clockwise, drive worm gear wheel and then drive bevel-gear rotating, moment of torsion is delivered to roller power transmission shaft by left helical gear and right helical gear, roller is finally driven to rotate forward, produce tractive force, play traction drill string axial advancement, effect of resistance falls in anti-attrition.
Further provide the annexation of clamping body, in order to reach the effect of worm screw mandrel sleeve geo-stationary with drill string rotating, upper thrust joint is connected with worm screw mandrel respectively by screw thread with lower thrust joint inside, upper thrust joint is connected by movable sealing mechanism with upper conical clip and inferior pyramidal clip respectively with lower thrust connector exterior, coordinate three of clamping sleeve upper ends clamp by the upper conical clip of steady pin with band keyway successively by the keyway of sleeve end face and steady pin, the steady pin of inferior pyramidal clip inserts clamping in the keyway of sleeve bottom and fixes; Ensure upper conical clip, three groups of sleeves and inferior pyramidal clip geo-stationary when drill string rotates, reduce drill string torque; Roller makes the sliding friction of sleeve and the borehole wall become rolling friction, reduces frictional resistance.
In the present invention, thrust joint two ends are female joint, one end jointed rod, other end connecting worm mandrel; Lower thrust joint two ends are then a public female joint, male joint stacks, and worm screw mandrel is fixed in female joint; Meanwhile, upper and lower thrust connector exterior has step, upper and lower taper clip and sleeve can be clamped, and to reach, the moment of torsion of drilling rod is passed to worm screw mandrel and the effect turning round tighter and tighter.
The thickness 30 ° keyways five identical with the guiding gutter degree of depth are had in the angle of the end face circumference 270 ° of the present invention's upper conical clip fixed muffle, 30 °, interval successively, the angle middle remaining 90 ° convinces chute by patient analysis, guiding gutter in the shape of a spiral, pitch is three times of a length sleeve, and the guiding gutter degree of depth equals the half of upper conical clip both ends of the surface external diameter difference.The angle of the end face circumference 270 ° of inferior pyramidal clip fixed muffle is cast with the thickness 30 ° keyways five identical with the guiding gutter degree of depth, 30 °, interval successively, the angle middle remaining 90 ° convinces chute by patient analysis, guiding gutter in the shape of a spiral, pitch is three times of a length sleeve, and the guiding gutter degree of depth equals the half of inferior pyramidal clip both ends of the surface external diameter difference.The inclined-plane tapering of the clip of taper up and down after structure optimization is 18 °, at the upper and lower taper clip conical surface and surface spraying hard alloy layer, improves this instrument and resistance to wears and erosion resistance, extends the application life of instrument.
Guiding gutter of the present invention is from upper conical clip, pass from the angle of sleeve end face 90 ° and be positioned at the dead ahead of sleeve perforate, taper clip is terminated in downward-extension in the shape of a spiral around sleeve, while strengthening bottom hole flushing ability, allow the active force of roller and the borehole wall strengthen, improve the extension ability of drill string.
Upper thrust joint is connected transmission with worm screw mandrel thread and creeps into moment of torsion and axial compression, form clamping body with three identical sleeves that steady pin assembles and lower thrust joint with the clip of taper up and down installing movable sealing mechanism by keyway, upper and lower taper clip clamps three sleeves by keyway and steady pin.When worm screw mandrel engages with three groups of six worm gears distributed by 120 °, phase angle, by six worm-and-wheel gears, transmission mechanism unidirectional delivery moment of torsion in left helical gear and right helical gear, drive roller to rotate, produce axial thrust force.During rotary drilling, drill string drives axial traction mechanism initiatively to push ahead, and sleeve does not rotate, traction drill string axial advancement.The present invention has the usefulness that axial traction drill string, antifriction, raising extended reach well or drillstring in horizontal section extend ability.
Roller of the present invention is fixed in roller positioning lining by cover plate through screw, and cover plate is identical with sleeve with the radian of roller positioning lining, can embed in sleeve completely and realize seamless link, reduces the friction damage of cover plate and roller positioning lining and the borehole wall.Only more need renew roller after rolling wheel wear, and sleeve, cover plate and roller positioning lining can continue to use, be conducive to reducing drilling cost.The present invention can use different crawling wheels instead to improve efficiency of creeping according to Different Strata.
The beneficial effect that the present invention has is: compared with prior art, and the present invention is a kind of has the mud motor improving drill string extension ability, and when creeping into, sleeve geo-stationary, reduces moment of torsion; Roller torque axis during drill string rotating can not only be changed into roller shaft to tractive force, frictional resistance when creeping into can also be reduced; While promoting drilling efficiency, traction drill string advances, and improves the extension ability of extended reach well or horizontal well.The present invention is that extended reach well or horizontal well technology provide a kind of equipment newly.
Accompanying drawing explanation
Fig. 1 is the 3-D view that the present invention has the mud motor improving drill string extension ability.
Fig. 2 is the topology view that the present invention has the mud motor improving drill string extension ability.
Fig. 3 is A close-up schematic view in position in Fig. 2.
Fig. 4 is B partial enlarged drawing in position in Fig. 2, is clamping body schematic diagram of the present invention.
Fig. 5 is upper conical clip 3-D view.
Fig. 6 is inferior pyramidal clip 3-D view.
Fig. 7 is A-A view in Fig. 1, is transmission mechanism schematic diagram of the present invention.
Fig. 8 is B-B view in Fig. 1, is haulage gear schematic diagram of the present invention.
Fig. 9 is C close-up schematic view in position in Fig. 8.
Figure 10 is the topology view of transmission mechanism of the present invention.
Figure 11 is the 3-D view of transmission mechanism of the present invention when not working.
3-D view when Figure 12 is transmission mechanism of the present invention work;
Figure 13 is the decomposition view of transmission mechanism of the present invention.
Thrust joint under number in the figure: 1-upper thrust joint, the upper conical clip of 2-, 3-guiding gutter, 4-sleeve, 5-inferior pyramidal clip, 6-, 7-cover plate, 8-roller positioning lining, 9-roller, the left helical gear of 10-, the right helical gear of 11-, 12-bevel gear, 13-driven turnbarrel fixed support, the driven turnbarrel of 14-, 15-active rotation sleeve, 16-active rotation sleeve fixed support, 17-worm gear, 18-dividing plate, 19-spring, 20-stretch mandrel, 21-baffle plate, 22-worm screw mandrel.
Detailed description of the invention
The following examples can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.
The embodiment of the present invention, a kind of have the mud motor improving drill string extension ability, as accompanying drawing 1, Fig. 2, Fig. 3, shown in Fig. 4 and Figure 10, comprise thrust joint 1, upper conical clip 2, guiding gutter 3, sleeve 4, inferior pyramidal clip 5, lower thrust joint 6, cover plate 7, roller positioning lining 8, roller 9, left helical gear 10, right helical gear 11, bevel gear 12, driven turnbarrel fixed support 13, driven turnbarrel 14, active rotation sleeve 15, active rotation sleeve fixed support 16, worm gear 17, dividing plate 18, spring 19, flexible mandrel 20, baffle plate 21 and worm screw mandrel 22.
By the compound action of roller 9, left helical gear 10, right helical gear 11, bevel gear 12, driven turnbarrel fixed support 13, driven turnbarrel 14, active rotation sleeve 15, active rotation sleeve fixed support 16, worm gear 17, dividing plate 18, spring 19, flexible mandrel 20, baffle plate 21 and worm screw mandrel 22, this instrument is had in drilling process and improves the function that drill string down-hole extends ability.
Worm gear 17 is engaged by the helical tooth on worm screw mandrel 22 with worm screw mandrel 22, and rotating energy part when being crept into by drill string converts instrument axial thrust force to.Worm screw mandrel 22 rotates and drives worm gear 17 to rotate, driven turnbarrel 14 is axially released by active rotation sleeve 15 by worm gear 17, bevel gear 12 is allowed to engage with left helical gear 10 and right helical gear 11 and to rotate, simultaneously by power transmission to left helical gear 10 and right helical gear 11, eventually passing power transmission shaft drives roller 9 to rotate, and traction drill string advances.
As Fig. 1, shown in Fig. 2 and Fig. 4, in order to reach the effect of worm screw mandrel 22 sleeve 4 geo-stationary with drill string rotating, upper thrust joint 1 is connected with worm screw mandrel 22 respectively by screw thread with lower thrust joint 6 inside, upper thrust joint 1 is connected by movable sealing mechanism with upper conical clip 2 and inferior pyramidal clip 5 respectively with lower thrust joint 6 outside, the sleeve 4 identical with three sections that steady pin assembles by keyway has spiral stream guidance groove 3, two ends are fixed by keyway with upper conical clip 2 and inferior pyramidal clip 5 respectively, when worm screw mandrel 22 rotates, upper conical clip 2, guiding gutter 3, sleeve 4 and inferior pyramidal clip 5 geo-stationary, reduce drill string torque.
In the present invention, thrust joint 1 two ends are female joint, one end jointed rod, other end connecting worm mandrel 22; Lower thrust joint 6 two ends are then a public female joint, male joint stacks, and worm screw mandrel 22 is fixed in female joint; Meanwhile, upper thrust joint 1 and lower thrust joint 6 outside have step, by upper conical clip 2, inferior pyramidal clip 5 and sleeve 4 fastening, to reach, the moment of torsion of drilling rod can be passed to worm screw mandrel 22 and the effect turning round tighter and tighter.
Guiding gutter 3 of the present invention, from upper conical clip 2, passes, and is positioned at roller 9 dead ahead in the middle of sleeve 4 steady pin end face 90 ° of angles, terminates in inferior pyramidal clip 5 in the shape of a spiral, strengthen bottom hole flushing ability around sleeve 4 to downward-extension.
Provided by the invention have the mud motor improving drill string extension ability, upper conical clip 2 after structure optimization and the inclined-plane tapering of inferior pyramidal clip 5 are 18 °, at upper conical clip 2 and inferior pyramidal clip 5 conical surface coated with hard alloy-layer, improve this instrument to resistance to wear and erosion resistance, extend the application life of instrument.
As shown in Figure 5 and Figure 6, the thickness 30 ° keyways five identical with guiding gutter 3 degree of depth are had in the angle of upper conical clip 2 major diameter end face circumference 270 °, 30 °, interval successively, the angle middle remaining 90 ° convinces chute 3 by patient analysis, guiding gutter 3 in the shape of a spiral, pitch is three times of a length sleeve, and guiding gutter 3 degree of depth equals the half of upper conical clip 2 both ends of the surface external diameter difference.The angle of inferior pyramidal clip 5 major diameter end face circumference 270 ° is cast with the thickness 30 ° keyways five identical with guiding gutter 3 degree of depth, 30 °, interval successively, the angle middle remaining 90 ° convinces chute 3 by patient analysis, guiding gutter 3 in the shape of a spiral, pitch is three times of a length sleeve, and guiding gutter 3 degree of depth equals the half of inferior pyramidal clip 5 both ends of the surface external diameter difference.
As illustrated in fig. 7 and fig. 10, worm screw mandrel 22 is engaged by the helical tooth on worm screw mandrel 22 with worm gear 17, worm gear 17 is installed on one end of active rotation sleeve 15, fix with dividing plate 18, the other end of active rotation sleeve 15 is engaged with driven turnbarrel 14 chisel teeth by wedge-shaped slot with a slope, the other end of driven turnbarrel 14 installs bevel gear 12, by worm gear 17, active rotation sleeve 15, the combined mechanism of driven turnbarrel 14 and bevel gear 12 is installed on flexible mandrel 20 simultaneously, mounting spring 19 is on flexible mandrel 20, fixed by dividing plate 18 and baffle plate 21, and by baffle plate 21 regulating spring 19 compressive strength, active rotation sleeve fixed support 16 and driven turnbarrel fixed support 13 are buckled into respectively in active rotation sleeve 15 and driven turnbarrel 14 groove, be fixed in sleeve 4, realize worm screw mandrel 22 when turning clockwise, worm gear 17 drives active rotation sleeve 15 to rotate, after driven turnbarrel 14, bevel gear 12, flexible mandrel 20 move axially a segment distance by right hand rule, turn clockwise with active rotation sleeve 15, form transmission mechanism.
Worm screw mandrel 22 engages with three groups of six worm gears 17 distributed by 120 °, phase angle, forms three groups of transmission mechanisms.It is the hole that 120 ° three groups six are identical that the circumference of three assembly trap cylinders 4 arranges phase angle, in each hole, a roller positioning lining 8 is installed, and covering cover plate 7, such arranging can ensure that roller 9 contacts with the borehole wall in any circumferential orientation, provides axial thrust force.
As shown in Fig. 3, Fig. 8 and Fig. 9, engage with left helical gear 10 and right helical gear 11 after bevel gear 12 moves axially a segment distance; Left helical gear 10 is fixed on one end of roller 9 power transmission shaft, and right helical gear 12 is fixed on one end of another roller 9 power transmission shaft; The roller 9 of left helical gear 10, right helical gear 11, two V belt translation axles is all placed in roller positioning lining 8, and roller positioning lining 8 to embed in the hole being located on sleeve 4 and is screwed, and roller positioning lining 8 is arranged cover plate 7; Drive two rollers 9 to travel forward when bevel gear 12 rotates simultaneously, form haulage gear, axial thrust force is provided.
Transmission mechanism single-direction transmission, when on put put drill string or stop bore time, because bevel gear 12 is separated with right helical gear 11 with left helical gear 10, the rotation of roller 9 can't produce moment of torsion to drill string.
As shown in Figure 10, Figure 11, Figure 12 and Figure 13, the surperficial circumference of active rotation sleeve 15 has one rectangular recess, and end face has wedge-shaped slot, buckles into rectangular recess by fixing of active rotation sleeve fixed support 16; The surperficial circumference of driven turnbarrel 14 has " convex " font groove together, the six uniform identical right-angled trapezium grooves in road are had in the axis of " convex " font groove, end face is cast with chisel teeth, be with gradient and buckled into right-angled trapezium groove for fixing of driven turnbarrel fixed support 13, allowing the inclined-plane of a fixing inclined-plane and right-angled trapezium groove fit; Fixing driven turnbarrel fixed support 13 and active rotation sleeve fixed support 16; During active rotation sleeve 15 non rotating, the wedge-shaped slot of active rotation sleeve 15 end face engages with driven turnbarrel 14 chisel teeth; Fit in a fixing inclined-plane of driven turnbarrel fixed support 13 and the inclined-plane of right-angled trapezium groove.When active rotation sleeve 15 rotates, the wedge-shaped slot of active rotation sleeve 15 end face, active rotation sleeve fixed support 16, the chisel teeth of driven turnbarrel 14 end face and the right-angled trapezium groove on surface and driven turnbarrel fixed support 13 acting in conjunction produce end thrust, and the wedge-shaped slot of active rotation sleeve 15 is separated with driven turnbarrel 14 chisel teeth; A fixing inclined-plane for driven turnbarrel fixed support 13 is separated with the inclined-plane of driven turnbarrel 14 right-angled trapezium groove " convex " font groove simultaneously entering driven turnbarrel 14, promote driven turnbarrel 14, bevel gear 12, flexible mandrel 20 turn clockwise with active rotation sleeve 15 after moving axially a segment distance by right hand rule, form transmission mechanism.
The present invention is a kind of to be had and improves drill string and extend the mud motor of ability by above-mentioned embodiment, final realization: upper thrust joint 1 is connected with worm screw mandrel 22 respectively by screw thread with lower thrust joint 6 inside, and rotate clockwise with drill string simultaneously, worm screw mandrel 22 drives worm gear 17 to rotate, worm gear 17 is rotated by active rotation sleeve 15 axially to be released driven turnbarrel 14, bevel gear 12 is made to engage simultaneously with left helical gear 10 and right helical gear 11 and rotate, by power transmission to left helical gear 10 and right helical gear 11, eventually passing power transmission shaft drives roller to rotate, traction drill string advances, simultaneously, upper thrust joint 1 is connected by movable sealing mechanism with upper conical clip 2 and inferior pyramidal clip 5 respectively with lower thrust joint 6 outside, spiral stream guidance groove 3 is had by keyway sleeve 4 identical with three that steady pin assembles, two ends are fixed by keyway with upper conical clip 2 and inferior pyramidal clip 5 respectively, when upper thrust joint 1, worm screw mandrel 22, lower thrust joint 6 rotate, upper conical clip 2, guiding gutter 3, sleeve 4 and inferior pyramidal clip 5 geo-stationary, final realization improves effect that drill string extends ability.
Use during this instrument and will pay special attention to that originally there is the raising drill string extension mud motor of ability and the coupling direction of drill string.Coordinate the present invention to use, drill string can only turn clockwise.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (7)
1. one kind has the mud motor improving drill string extension ability, it is characterized in that, comprise thrust joint (1), upper conical clip (2), guiding gutter (3), sleeve (4), inferior pyramidal clip (5), lower thrust joint (6), cover plate (7), roller positioning lining (8), roller (9), left helical gear (10), right helical gear (11), bevel gear (12), driven turnbarrel fixed support (13), driven turnbarrel (14), active rotation sleeve (15), active rotation sleeve fixed support (16), worm gear (17), dividing plate (18), spring (19), flexible mandrel (20), baffle plate (21), worm screw mandrel (22), bevel gear (12) is fixed in driven turnbarrel (14) one end, and one end is engaged with active rotation sleeve (15) by chisel teeth with a slope, and is installed on flexible mandrel (20), active rotation sleeve (15) other end installs worm gear (17), fix with dividing plate (18), spring (19) is installed on flexible mandrel (20) and goes up and be positioned between dividing plate (18) and baffle plate (21), by baffle plate (21) fixing spring (19), and can regulating spring (19) compressive strength, driven turnbarrel fixed support (13) and active rotation sleeve fixed support (16) are buckled in the groove of driven turnbarrel (14) and active rotation sleeve (15) respectively, be fixed in sleeve (4), realize active rotation sleeve (15) to turn clockwise, after driven turnbarrel (14), bevel gear (12), flexible mandrel (20) move axially a segment distance by right hand rule, turn clockwise together with active rotation sleeve (15), worm gear (17) is engaged by the helical tooth on worm screw mandrel (22) with worm screw mandrel (22), and rotating energy part when being crept into by drill string converts instrument axial thrust force to, worm screw mandrel (22) rotates and drives worm gear (17) to rotate, driven turnbarrel (14) is axially released by active rotation sleeve (15) by worm gear (17), bevel gear (12) is allowed to engage with left helical gear (10) and right helical gear (11) and to rotate, simultaneously by power transmission to left helical gear (10) and right helical gear (11), eventually passing power transmission shaft drives roller (9) to rotate, traction drill string advances, and this mud motor has the function of one-way expansion and unidirectional delivery moment of torsion.
2. mud motor according to claim 1, it is characterized in that, active rotation sleeve (15) surperficial circumference has one rectangular recess, and end face has wedge-shaped slot, buckles into this rectangular recess by fixing of active rotation sleeve fixed support (16); Driven turnbarrel (14) surperficial circumference has " convex " font groove together, the six uniform identical right-angled trapezium grooves in road are had in the axis of " convex " font groove, end face is cast with chisel teeth, be with gradient and buckled into right-angled trapezium groove for fixing of driven turnbarrel fixed support (13), allowing the inclined-plane of a fixing inclined-plane and right-angled trapezium groove fit; Fixing driven turnbarrel fixed support (13) and active rotation sleeve fixed support (16); When active rotation sleeve (15) does not work, the wedge-shaped slot of active rotation sleeve (15) end face engages with driven turnbarrel (14) chisel teeth; Fit in a fixing inclined-plane of driven turnbarrel fixed support (13) and the inclined-plane of right-angled trapezium groove; During active rotation sleeve (15) work, the wedge-shaped slot of active rotation sleeve (15) end face, active rotation sleeve fixed support (16), the chisel teeth of driven turnbarrel (14) end face and the right-angled trapezium groove on surface and driven turnbarrel fixed support (13) acting in conjunction produce end thrust, and the wedge-shaped slot of active rotation sleeve (15) is separated with driven turnbarrel (14) chisel teeth; A fixing inclined-plane of driven turnbarrel fixed support (13) is separated " convex " font groove simultaneously entering driven turnbarrel (14) with the inclined-plane of driven turnbarrel (14) right-angled trapezium groove, promote driven turnbarrel (14), bevel gear (12), the mandrel (20) that stretches turns clockwise with active rotation sleeve (15) after moving axially a segment distance by right hand rule.
3. mud motor according to claim 1, is characterized in that: driven turnbarrel (14) is without when turning clockwise, and bevel gear (12) is separated with right helical gear (11) with left helical gear (10); When driven turnbarrel (14) turns clockwise, bevel gear (12) engages with left helical gear (10) and right helical gear (11) simultaneously; Left helical gear (10) and right helical gear (11) are individually fixed in one end of two roller (9) power transmission shafts; Driven turnbarrel (14) turns clockwise and drives bevel gear (12) to rotate, and bevel gear (12) drives two rollers (9) to travel forward, and provides tractive force.
4. mud motor according to claim 1, it is characterized in that: in the angle of sleeve (4) one end circumference 270 °, be cast with the thickness 30 ° steady pins five identical with guiding gutter (3) degree of depth, 30 °, interval successively, the angle middle remaining 90 ° convinces chute (3) by patient analysis; The other end has the keyway of same shape, size, quantity and arrangement; Coordinate clamping three sleeves (4) by keyway and steady pin and be that the position of 120 ° opens three groups six identical holes respectively at phase angle, for installing six roller positioning linings (8), ensure that roller contacts with the borehole wall in any circumferential orientation, traction drill string axial advancement.
5. mud motor according to claim 1, it is characterized in that: guiding gutter (3) aperture position is from upper conical clip (2), pass in the middle of sleeve (4) steady pin end face 90 ° of angles, and be positioned at roller (9) dead ahead, extend to keyway end in the shape of a spiral, pitch is sleeve (4) body length three times; Strengthen roller (9) and the active force of the borehole wall while guiding gutter (3) improves hole cleaning ability, improve the extension ability of drill string.
6. mud motor according to claim 1, it is characterized in that: in the angle of upper conical clip (2) major diameter end face circumference 270 °, have the thickness 30 ° keyways five identical with guiding gutter (3) degree of depth, 30 °, interval successively, the angle middle remaining 90 ° convinces chute (3) by patient analysis, guiding gutter (3) in the shape of a spiral, pitch is three times of sleeve (4) length, and guiding gutter (3) degree of depth equals the half of upper conical clip (2) both ends of the surface external diameter difference; The angle of inferior pyramidal clip (5) major diameter end face circumference 270 ° is cast with the thickness 30 ° keyways five identical with guiding gutter (3) degree of depth, 30 °, interval successively, the angle middle remaining 90 ° convinces chute (3) by patient analysis, guiding gutter (3) in the shape of a spiral, pitch is three times of sleeve (4) length, and guiding gutter (3) degree of depth equals the half of inferior pyramidal clip (5) both ends of the surface external diameter difference.
7. mud motor according to claim 1, it is characterized in that: coordinate clamping three sleeves (4) successively by the keyway of sleeve (4) end face and steady pin, sleeve (4) is topmost clamped by the upper conical clip (2) of steady pin with band keyway, is inserted by the steady pin of inferior pyramidal clip (5) in the keyway of sleeve (4) bottom and clamps; Upper thrust joint (1) and upper conical clip (2), lower thrust joint (6) and inferior pyramidal clip (5) ensure upper conical clip (2), sleeve (4) and inferior pyramidal clip (5) geo-stationary when drill string rotates respectively by movable sealing mechanism, reduce drill string torque; Roller (9) makes sleeve (4) become rolling friction with the sliding friction of the borehole wall, reduces frictional resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310092202.9A CN103132925B (en) | 2013-03-21 | 2013-03-21 | Downhole motive driller capable of improving drill column stretching capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310092202.9A CN103132925B (en) | 2013-03-21 | 2013-03-21 | Downhole motive driller capable of improving drill column stretching capacity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103132925A CN103132925A (en) | 2013-06-05 |
| CN103132925B true CN103132925B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310092202.9A Expired - Fee Related CN103132925B (en) | 2013-03-21 | 2013-03-21 | Downhole motive driller capable of improving drill column stretching capacity |
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| CN105781416A (en) * | 2016-03-25 | 2016-07-20 | 柳超 | Deep well drilling actuator based on double-speed torque-converting bit and provided with drill string |
| CN105863501A (en) * | 2016-04-18 | 2016-08-17 | 柳超 | Independent energy supply deep well drilling underground platform |
| CN105863511A (en) * | 2016-04-22 | 2016-08-17 | 柳超 | Directional drilling executing mechanism based on three-speed drill bit |
| CN107060675A (en) * | 2017-05-22 | 2017-08-18 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of underground hydraulic pressure drives turbocharging tractor |
| CN113914654B (en) * | 2021-11-15 | 2022-04-08 | 西南石油大学 | Grouting device for ecological restoration of concrete cracks |
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| CN1318726C (en) * | 2005-02-01 | 2007-05-30 | 西南石油学院 | Stabilizer of gas drill horizontal well |
| AT504560B1 (en) * | 2006-11-29 | 2009-06-15 | Techmo Entw & Vertriebs Gmbh | DEVICE FOR BUTTONING DRILLING IN GESTEIN MATERIAL |
| CN201068759Y (en) * | 2007-10-17 | 2008-06-04 | 大庆油田有限责任公司 | Shocking reversing stuck freeing salvaging pipe column |
| CN203161100U (en) * | 2013-03-21 | 2013-08-28 | 西南石油大学 | Downhole motor capable of improving extending capacity of drill column |
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