CN203161100U - Downhole motor capable of improving extending capacity of drill column - Google Patents
Downhole motor capable of improving extending capacity of drill column Download PDFInfo
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- CN203161100U CN203161100U CN 201320131357 CN201320131357U CN203161100U CN 203161100 U CN203161100 U CN 203161100U CN 201320131357 CN201320131357 CN 201320131357 CN 201320131357 U CN201320131357 U CN 201320131357U CN 203161100 U CN203161100 U CN 203161100U
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- sleeve
- clip
- worm
- guiding gutter
- roller
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Abstract
The utility model discloses a downhole motor capable of improving extending capacity of a drill column. The downhole motor capable of improving the extending capacity of the drill column comprises an upper thrusting connector, an upper cone-shaped hoop, sleeves, a roller, a roller locating lining, a drive mechanism, a worm mandrel, a lower thrusting connector, a lower cone-shaped hoop, a diversion trench and the like. The upper thrusting connector and the worm mandrel are in threaded connection to transmit drilling torque and axial pressure and matched with the sleeves and the lower thrusting connector to form a clamping mechanism with the upper cone-shaped hoop with a motive sealing mechanism and the lower cone-shaped hoop with a motive sealing mechanism. Three matched sleeves are jammed by the upper cone-shaped hoop and the lower cone-shaped hoop through key grooves, the worm mandrel is meshed with three sets of worm wheels, namely six worm wheels, wherein the worm wheels are distributed according to a 120-degree phase angle, torque is transmitted to the roller in a unidirectional mode through a worm and gear mechanism and the drive mechanism, and then an axial traction mechanism is formed. In the process of rotary drilling, the drill column drives the axial traction mechanism to move forwards, the sleeves do not rotate, and the drill column is dragged to axially extend. The downhole motor capable of improving the extending capacity of the drill column has the advantages that the extending capacity of the drill column of a large displacement well or a horizontal well is improved, and friction and resistance are reduced.
Description
Technical field
The utility model relates to a kind of for boring extended reach well or horizontal well, has and improves the mud motor that drill string extends ability.
Background technology
Extended reach well is the comprehensive embodiment of 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 the oil and gas development cost, the powerful measure of marginal oil-gas reservoir especially, the oil-gas reservoir exploitation of sea, beach, but key character when creeping into---high frictional resistance, high moment of torsion, cause horizontal section length limited, suppressed further developing of this technology.Simultaneously, the insufficient accident that causes down-hole complex accident even whole mouth well to be scrapped of hole cleaning also happens occasionally.
Improve the extension ability of extended reach well, horizontal well and effectively reduce the frictional resistance moment of torsion, fully wellbore clearance is the key of extended reach well, horizontal well technology success.
The utility model content
The purpose of this utility model: provide a kind of have improve the instrument that the drill string down-hole is extended ability, reduced frictional resistance, a kind of well dynamic instrument that extended reach well or horizontal well are used that bores is proposed especially.
In order to achieve the above object, the utility model solves the technical scheme that this technical problem adopts and is:
A kind of mud motor with raising drill string extension ability comprises thrust joint (1), upper conical clip (2), guiding gutter (3), sleeve (4), inferior pyramidal clip (5), following thrust joint (6), cover plate (7), roller location liner (8), roller (9), left side 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); Driven turnbarrel (14) one ends are bevel gear (12) fixedly, and an end meshes by chisel teeth with a slope and active rotation sleeve (15), and is installed on the flexible mandrel (20); Active rotation sleeve (15) other end is installed worm gear (17), and is fixing with dividing plate (18), and spring (19) is installed on flexible mandrel (20) upward and is positioned between dividing plate (18) and the baffle plate (21), by baffle plate (21) fixing spring (19); Worm gear (17) meshes by the helical tooth on the worm screw mandrel (22) with worm screw mandrel (22).
The unidirectional flexible and unidirectional delivery moment of torsion of transmission mechanism, when on put and put drill string or when stopping boring, because bevel gear separates with left and right sides helical gear, the moment of torsion of roller can not have a negative impact to sleeve.
Further provide the annexation of haulage gear, bevel gear meshes with left helical gear and right helical gear after moving axially a segment distance simultaneously; Left side helical gear is fixed in an end of a roller power transmission shaft, and right helical gear is fixed in an end of another roller power transmission shaft; The roller of left side helical gear, right helical gear, two band power transmission shafts all is positioned in the liner of roller location, and roller location liner embeds in the hole of being located on the sleeve and is screwed, and on the liner of roller location cover plate is set; Bevel gear drives two rollers simultaneously when rotating and travels forward, and forms haulage gear, and axial thrust force is provided.
A preferred scheme is, worm screw mandrel and three groups of six worm gears engagements of pressing the 120 ° of distributions in phase angle, form six transmission mechanisms, be three groups of six identical holes of 120 ° in that the phase angle upwards is set in the week of three assembly trap tubes, a roller location liner is installed in each hole, arranging like this can guarantee that crawling wheel contacts with the borehole wall in arbitrarily circumferential orientation, provides axial thrust force.
Bevel gear and worm gear are installed on respectively on driven turnbarrel and the active rotation sleeve, driven turnbarrel and active rotation sleeve are installed on respectively by screw and are fixed on driven turnbarrel fixed support in the sleeve and the active rotation sleeve fixed support and flexible mandrel by the axle center keeps coaxial, and the spring that flexible mandrel one end is installed and baffle plate make the transmission mechanism state that remains retracted.Roller is located in the liner embedded hole again and be screwed, left helical gear is fixed in an end of a roller power transmission shaft, and right helical gear is fixed in an end of another roller power transmission shaft; The roller of left side helical gear, right helical gear, two band power transmission shafts all is placed in the liner of roller location, adds upper cover plate, and roller location liner and cover plate are screwed.At last the worm screw mandrel is rotated in the sleeve, allow worm gear and worm engaging, so that traction power to be provided.When the worm screw mandrel turns clockwise, drive worm gear and rotate and then drive the bevel gear rotation, moment of torsion is delivered to the roller power transmission shaft by left helical gear and right helical gear, driving roller at last rotates forward, produce tractive force, play traction drill string axial advancement, the effect of resistance falls in anti-attrition.
Further provide the annexation of clamping body, for reach the worm screw mandrel with drill string rotating the static relatively effect of sleeve, last thrust joint is connected with the worm screw mandrel by screw thread respectively with following thrust joint inside, last thrust joint is connected by movable sealing mechanism with the inferior pyramidal clip with upper conical clip respectively with following thrust joint outside, keyway by sleeve end face and steady pin cooperate three sleeves upper ends of chucking by the upper conical clip chucking of steady pin with the band keyway successively, and it is fixing that the steady pin of inferior pyramidal clip inserts in the keyway of sleeve bottom chucking; Guarantee that upper conical clip, three groups of sleeves are relative static when drill string rotates with the inferior pyramidal clip, reduce the drill string moment of torsion; Roller makes the sliding friction of sleeve and the borehole wall become rolling friction, reduces frictional resistance.
Thrust joint two ends are female joint on the utility model, an end jointed rod, and the other end connects the worm screw mandrel; Following thrust joint two ends then are a public female joint, the male joint stacks, and female joint is the worm screw mandrel fixedly; Simultaneously, thrust joint outside has step up and down, can will go up the inferior pyramidal clip tighten the effect that passes to the worm screw mandrel and turn round tighter and tighter with the moment of torsion that reaches drilling rod with sleeve.
Have five in thickness 30 ° of keyways identical with the guiding gutter degree of depth in the circumferential 270 ° angle of the end face of the upper conical clip fixed muffle of the utility model, the interval is 30 ° successively, the angle middle that remains 90 ° is convinced chute by patient analysis, guiding gutter is shape in the shape of a spiral, pitch is three times an of length sleeve, and the guiding gutter degree of depth equals half of upper conical clip both ends of the surface external diameter difference.The circumferential 270 ° angle of end face of inferior pyramidal clip fixed muffle is cast with five in thickness 30 ° of keyways identical with the guiding gutter degree of depth, the interval is 30 ° successively, the angle middle that remains 90 ° is convinced chute by patient analysis, guiding gutter is shape in the shape of a spiral, pitch is three times an of length sleeve, and the guiding gutter degree of depth equals half of inferior pyramidal clip both ends of the surface external diameter difference.The inclined-plane tapering of the last inferior pyramidal clip after the structure optimization is 18 °, at the last inferior pyramidal clip conical surface and surperficial coated with hard alloy-layer, improves this instrument and resistance to wears and anti-impact erosion ability, prolongs the application life of instrument.
The utility model guiding gutter is from upper conical clip, pass and be positioned at the dead ahead of sleeve perforate from the angle of 90 ° of sleeve end face, shape extends downwards and terminates in the taper clip around sleeve in the shape of a spiral, when strengthening the bottom hole flushing ability, allow the active force of roller and the borehole wall strengthen, improve the extension ability of drill string.
Last thrust joint is connected transmission and creeps into moment of torsion and axial compression with the worm screw mandrel thread, three identical sleeves and following thrust joint by keyway and steady pin assembling form clamping body with the last inferior pyramidal clip that movable sealing mechanism is installed, and last inferior pyramidal clip is by keyway and three sleeves of steady pin chucking.When the worm screw mandrel meshes with three groups of six worm gears pressing the 120 ° of distributions in phase angle,, drive roller and rotate in left helical gear and right helical gear by six worm-and-wheel gears, transmission mechanism unidirectional delivery moment of torsion, produce axial thrust force.During rotary drilling, drill string drives axial traction mechanism and initiatively pushes ahead, and sleeve does not rotate, traction drill string axial advancement.The utlity model has axial traction drill string, antifriction falls resistance, improves the usefulness that extended reach well or horizontal well drill string extend ability.
Roller of the present utility model is fixed on roller location inside liner by cover plate through screw, and cover plate is identical with sleeve with the radian of roller location liner, can embed fully and realize seamless link in the sleeve, reduces the friction damage of cover plate and roller location liner and the borehole wall.Only need more renew roller behind the rolling wheel wear, and sleeve, cover plate and roller location liner can continue to use, and are conducive to reduce drilling cost.The utility model can be used different crawling wheels instead with the raising efficient of creeping according to Different Strata.
The beneficial effect that the utlity model has is: compared with prior art, a kind of mud motor with raising drill string extension ability of the utility model, sleeve is static relatively when creeping into, and has reduced moment of torsion; Torque axis when roller can not only be with drill string rotating change into roller shaft to tractive force, can also reduce the frictional resistance when creeping into; The traction drill string advances when promoting drilling efficiency, has improved the extension ability of extended reach well or horizontal well.The utility model provides a kind of new equipment for extended reach well or horizontal well technology.
Description of drawings
Fig. 1 the utlity model has to improve the 3-D view that drill string extends the mud motor of ability.
Fig. 2 the utlity model has to improve the topology view that drill string extends the mud motor of ability.
Fig. 3 is A local enlarged diagram in position among Fig. 2.
Fig. 4 is B partial enlarged drawing in position among Fig. 2, is clamping body schematic diagram of the present utility model.
Fig. 5 is upper conical clip 3-D view.
Fig. 6 is inferior pyramidal clip 3-D view.
Fig. 7 is A-A view among Fig. 1, is transmission mechanism schematic diagram of the present utility model.
Fig. 8 is B-B view among Fig. 1, is haulage gear schematic diagram of the present utility model.
Fig. 9 is C local enlarged diagram in position among Fig. 8.
Figure 10 is the topology view of the utility model transmission mechanism.
Figure 11 is the 3-D view of the utility model transmission mechanism when not working.
3-D view when Figure 12 is the work of the utility model transmission mechanism.
Figure 13 is the decomposition view of the utility model transmission mechanism.
Thrust joint, 7-cover plate, 8-roller location liner, 9-roller, 10-left side helical gear, the right helical gear of 11-, 12-bevel gear, the driven turnbarrel fixed support of 13-, the driven turnbarrel of 14-, 15-active rotation sleeve, 16-active rotation sleeve fixed support, 17-worm gear, 18-dividing plate, 19-spring, the flexible mandrel of 20-, 21-baffle plate, 22-worm screw mandrel under the last thrust joint of number in the figure: 1-, the upper conical clip of 2-, 3-guiding gutter, 4-sleeve, 5-inferior pyramidal clip, the 6-.
The specific embodiment
The following examples can make those skilled in the art more fully understand the utility model, but limit the utility model never in any form.
The utility model embodiment, a kind of mud motor with raising drill string extension ability, as accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 10 comprises thrust joint 1, upper conical clip 2, guiding gutter 3, sleeve 4, inferior pyramidal clip 5, following thrust joint 6, cover plate 7, roller location liner 8, roller 9, left side 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 improve the function that ability is extended in the drill string down-hole.
As Fig. 1, Fig. 2 and shown in Figure 4, for reach worm screw mandrel 22 with drill string rotating the static relatively effect of sleeve 4, last thrust joint 1 is connected with worm screw mandrel 22 by screw thread respectively with following thrust joint 6 inside, last thrust joint 1 is connected by movable sealing mechanism with inferior pyramidal clip 5 with upper conical clip 2 respectively with following thrust joint 6 outsides, three sections identical sleeves 4 by keyway and steady pin assembling have 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 is relative static with inferior pyramidal clip 5, reduces the drill string moment of torsion.
Thrust joint 1 two ends are female joint on the utility model, an end jointed rod, and the other end connects worm screw mandrel 22; Following thrust joint 6 two ends then are a public female joint, the male joint stacks, and female joint is worm screw mandrel 22 fixedly; Simultaneously, last thrust joint 1 and following thrust joint 6 outsides have step, can be with upper conical clip 2, inferior pyramidal clip 5 and sleeve 4 fastenings, and the effect that passes to worm screw mandrel 22 and turn round tighter and tighter with the moment of torsion that reaches drilling rod.
The utility model guiding gutter 3 is from upper conical clip 2, passes in the middle of 90 ° of angles of sleeve 4 steady pin end faces, and is positioned at roller 9 dead aheads, and shape extends downwards and terminates in inferior pyramidal clip 5 around sleeve 4 in the shape of a spiral, strengthens the bottom hole flushing ability.
Having that the utility model provides improves the mud motor that drill string extends ability, upper conical clip 2 after the 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-layers, improve this instrument and resistance to wear and anti-impact erosion ability, prolong the application life of instrument.
As shown in Figure 5 and Figure 6, have five in thickness 30 ° of keyways identical with guiding gutter 3 degree of depth in the circumferential 270 ° angle of upper conical clip 2 major diameter end faces, the interval is 30 ° successively, the angle middle that remains 90 ° is convinced chute 3 by patient analysis, guiding gutter 3 is shape in the shape of a spiral, pitch is three times an of length sleeve, and guiding gutter 3 degree of depth equal half of upper conical clip 2 both ends of the surface external diameter differences.The circumferential 270 ° angle of inferior pyramidal clip 5 major diameter end faces is cast with five in thickness 30 ° of keyways identical with guiding gutter 3 degree of depth, the interval is 30 ° successively, the angle middle that remains 90 ° is convinced chute 3 by patient analysis, guiding gutter 3 is shape in the shape of a spiral, pitch is three times an of length sleeve, and guiding gutter 3 degree of depth equal half of inferior pyramidal clip 5 both ends of the surface external diameter differences.
As Fig. 7 and shown in Figure 10, worm screw mandrel 22 meshes by the helical tooth on the worm screw mandrel 22 with worm gear 17, worm gear 17 is installed on an end of active rotation sleeve 15, fixing with dividing plate 18, the other end of active rotation sleeve 15 is by wedge-shaped slot with a slope and the engagement of driven turnbarrel 14 chisel teeths, the other end of driven turnbarrel 14 is installed bevel gear 12, with 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, fixing by dividing plate 18 and baffle plate 21, and by baffle plate 21 regulating springs 19 compressive strengths; 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 grooves, be fixed in the sleeve 4, when realizing that worm screw mandrel 22 turns clockwise, worm gear 17 drives 15 rotations of active rotation sleeve, after 20 of driven turnbarrel 14, bevel gear 12, flexible mandrels move axially a segment distance by right hand rule, turn clockwise with active rotation sleeve 15, form transmission mechanism.
As Fig. 3, Fig. 8 and shown in Figure 9, bevel gear 12 meshes with left helical gear 10 and right helical gear 11 after moving axially a segment distance; Left side helical gear 10 is fixed in an end of roller 9 power transmission shafts, and right helical gear 12 is fixed in an end of another roller 9 power transmission shafts; The roller 9 of left side helical gear 10, right helical gear 11, two band power transmission shafts all is placed in the liner 8 of roller location, and roller location liner 8 embeds in the hole of being located on the sleeve 4 and is screwed, and on the liner 8 of roller location cover plate 7 is set; Bevel gear 12 drives two rollers 9 simultaneously when rotating and travels forward, and forms haulage gear, and axial thrust force is provided.
The unidirectional transmission of transmission mechanism, when on put and put drill string or when stopping boring, because bevel gear 12 separates 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 Figure 10, Figure 11, Figure 12 and shown in Figure 13, active rotation sleeve 15 surfaces circumferentially have rectangular recess one, and end face has wedge-shaped slot, fixing of active rotation sleeve fixed support 16 propped up buckle into rectangular recess; Driven turnbarrel 14 surfaces circumferentially have " protruding " font groove together, axially have a uniform identical right-angled trapezium groove in six roads at " protruding " font groove, end face is cast with chisel teeth, fixing of driven turnbarrel fixed support 13 has gradient and it is buckled into the right-angled trapezium groove, allows 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 rotate, the wedge-shaped slot of active rotation sleeve 15 end faces and the engagement of driven turnbarrel 14 chisel teeths; Fit in a fixing inclined-plane of driven turnbarrel fixed support 13 and the inclined-plane of right-angled trapezium groove.During 15 rotations of active rotation sleeve, the right-angled trapezium groove on the chisel teeth of the wedge-shaped slot of active rotation sleeve 15 end faces, active rotation sleeve fixed support 16, driven turnbarrel 14 end faces and surface and driven turnbarrel fixed support 13 actings in conjunction produce end thrust, and the wedge-shaped slot of active rotation sleeve 15 separates with driven turnbarrel 14 chisel teeths; A fixing inclined-plane of driven turnbarrel fixed support 13 separates " protruding " font groove that enters driven turnbarrel 14 simultaneously with the inclined-plane of driven turnbarrel 14 right-angled trapezium grooves, promote driven turnbarrel 14, bevel gear 12, flexible mandrel 20 turns clockwise with active rotation sleeve 15 after moving axially a segment distance by right hand rule, forms transmission mechanism.
The utility model is a kind of to have the mud motor of raising drill string extension ability by above-mentioned embodiment, the final realization: go up thrust joint 1 and be connected with worm screw mandrel 22 by screw thread respectively with following thrust joint 6 inside, and clockwise rotate with drill string simultaneously, worm screw mandrel 22 drives worm gear 17 and rotates, worm gear 17 is axially released driven turnbarrel 14 by 15 rotations of active rotation sleeve, make bevel gear 12 and left helical gear 10 and right helical gear 11 mesh simultaneously and rotate, transmission of power is arrived left helical gear 10 and right helical gear 11, drive the roller rotation finally by crossing power transmission shaft, the traction drill string advances; Simultaneously, last thrust joint 1 is connected by movable sealing mechanism with inferior pyramidal clip 5 with upper conical clip 2 respectively with following thrust joint 6 outsides, three identical sleeves 4 by keyway and steady pin assembling have spiral stream guidance groove 3, two ends are fixed by keyway with upper conical clip 2 and inferior pyramidal clip 5 respectively, when last thrust joint 1, worm screw mandrel 22,6 rotations of following thrust joint, upper conical clip 2, guiding gutter 3, sleeve 4 are relative static with inferior pyramidal clip 5, finally realize improving the effect that drill string extends ability.
The raising drill string be to pay special attention to originally to have when using this instrument and the mud motor of ability and the coupling direction of drill string extended.Cooperate the utility model 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 conversion, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (7)
1. one kind has the mud motor that improves 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), following thrust joint (6), cover plate (7), roller location liner (8), roller (9), left side 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); Driven turnbarrel (14) one ends are bevel gear (12) fixedly, and an end meshes by chisel teeth with a slope and active rotation sleeve (15), and is installed on the flexible mandrel (20); Active rotation sleeve (15) other end is installed worm gear (17), and is fixing with dividing plate (18), and spring (19) is installed on flexible mandrel (20) upward and is positioned between dividing plate (18) and the baffle plate (21), by baffle plate (21) fixing spring (19); Worm gear (17) meshes by the helical tooth on the worm screw mandrel (22) with worm screw mandrel (22).
2. mud motor according to claim 1 is characterized in that, active rotation sleeve (15) surface circumferentially has rectangular recess one, and end face has wedge-shaped slot, fixing of active rotation sleeve fixed support (16) is propped up buckle into this rectangular recess; Driven turnbarrel (14) surface circumferentially has " protruding " font groove together, axially have a uniform identical right-angled trapezium groove in six roads at " protruding " font groove, end face is cast with chisel teeth, fixing of driven turnbarrel fixed support (13) has gradient and it is buckled into the right-angled trapezium groove, allows 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).
3. mud motor according to claim 1 is characterized in that: driven turnbarrel (14) does not have when turning clockwise, and bevel gear (12) separates with right helical gear (11) with left helical gear (10); Driven turnbarrel (14) is when turning clockwise, and bevel gear (12) meshes with left helical gear (10) and right helical gear (11) simultaneously; Left side helical gear (10) and right helical gear (11) are individually fixed in an end of two rollers (9) power transmission shaft; Driven turnbarrel (14) turns clockwise and drives bevel gear (12) rotation, and bevel gear (12) drives two rollers (12) and travels forward, and tractive force is provided.
4. mud motor according to claim 1, it is characterized in that: be cast with five of thickness 30 ° of steady pins identical with guiding gutter (3) degree of depth in the circumferential 270 ° angle of sleeve (4) one ends, the interval is 30 ° successively, and the angle middle that remains 90 ° is convinced chute (3) by patient analysis; That the other end has is identical shaped, big or small, the keyway of quantity and arrangement; Cooperate chucking three sleeves (4) by keyway and steady pin, and be that 120 ° position is opened three groups of six identical holes respectively at the phase angle.
5. mud motor according to claim 1, it is characterized in that: guiding gutter (3) aperture position is from upper conical clip (2), in the middle of 90 ° of angles of sleeve (4) steady pin end face, pass, and be positioned at roller (9) dead ahead, shape extends to the keyway end in the shape of a spiral, and pitch is three times of a sleeve (4) body length.
6. mud motor according to claim 1, it is characterized in that: have five in thickness 30 ° of keyways identical with guiding gutter (3) degree of depth in the circumferential 270 ° angle of upper conical clip (2) major diameter end face, the interval is 30 ° successively, the angle middle that remains 90 ° is convinced chute (3) by patient analysis, guiding gutter (3) is shape in the shape of a spiral, pitch is three times an of sleeve (4) length, and guiding gutter (3) degree of depth equals half of upper conical clip (2) both ends of the surface external diameter difference; The circumferential 270 ° angle of inferior pyramidal clip (5) major diameter end face is cast with five in thickness 30 ° of keyways identical with guiding gutter (3) degree of depth, the interval is 30 ° successively, the angle middle that remains 90 ° is convinced chute (3) by patient analysis, guiding gutter (3) is shape in the shape of a spiral, pitch is three times an of sleeve (4) length, and guiding gutter (3) degree of depth equals 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: keyway and steady pin by sleeve (4) end face cooperate chucking three sleeves (4) successively, sleeve (4) topmost is by upper conical clip (2) chucking of steady pin with the band keyway, the steady pin of inferior pyramidal clip (5) inserted in the keyway of sleeve (4) bottom to tighten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320131357 CN203161100U (en) | 2013-03-21 | 2013-03-21 | Downhole motor capable of improving extending capacity of drill column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320131357 CN203161100U (en) | 2013-03-21 | 2013-03-21 | Downhole motor capable of improving extending capacity of drill column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161100U true CN203161100U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320131357 Expired - Fee Related CN203161100U (en) | 2013-03-21 | 2013-03-21 | Downhole motor capable of improving extending capacity of drill column |
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| Country | Link |
|---|---|
| CN (1) | CN203161100U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132925A (en) * | 2013-03-21 | 2013-06-05 | 西南石油大学 | Downhole motive driller capable of improving drill column stretching capacity |
| CN105781442A (en) * | 2016-03-11 | 2016-07-20 | 柳超 | Automatic locating mechanism for downhole drill pillar |
| CN106347570A (en) * | 2016-10-19 | 2017-01-25 | 胡福喜 | Novel energy-saving boosting speed regulator for motorcycle with stepless speed change |
| CN113374429A (en) * | 2021-06-28 | 2021-09-10 | 中北大学 | Deep mine drilling draw gear |
-
2013
- 2013-03-21 CN CN 201320131357 patent/CN203161100U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132925A (en) * | 2013-03-21 | 2013-06-05 | 西南石油大学 | Downhole motive driller capable of improving drill column stretching capacity |
| CN105781442A (en) * | 2016-03-11 | 2016-07-20 | 柳超 | Automatic locating mechanism for downhole drill pillar |
| CN106347570A (en) * | 2016-10-19 | 2017-01-25 | 胡福喜 | Novel energy-saving boosting speed regulator for motorcycle with stepless speed change |
| CN113374429A (en) * | 2021-06-28 | 2021-09-10 | 中北大学 | Deep mine drilling draw gear |
| CN113374429B (en) * | 2021-06-28 | 2023-03-10 | 中北大学 | Deep mine drilling draw gear |
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