CN108533201B - Drilling fluid stirring drifting tool - Google Patents
Drilling fluid stirring drifting tool Download PDFInfo
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- CN108533201B CN108533201B CN201810417413.8A CN201810417413A CN108533201B CN 108533201 B CN108533201 B CN 108533201B CN 201810417413 A CN201810417413 A CN 201810417413A CN 108533201 B CN108533201 B CN 108533201B
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- inner cavity
- excircle
- sleeve
- seat
- motor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/03—Freeing by flushing
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
Abstract
The invention relates to a drilling fluid stirring drifting tool used in the fields of well drilling and well logging in the petroleum and gas industry. The problem that the drifting operation is effectively completed by effectively lowering the logging instrument into the well is solved. The technical scheme is as follows: the wire core at one end of the cable is respectively communicated with the electromagnet and the motor, and the wire core at the other end of the cable is communicated with the ground electric control platform; the middle part of the outer circle of the locking joint is in threaded connection with the lower part of the inner cavity of the locking nut, and the lower part of the outer circle of the locking joint is in threaded connection with the upper part of the inner hole of the connector; the electromagnet is arranged on the upper part of the inner cavity of the electromagnetic sealing seat; the fluke and the anchoring spring are integrally arranged in a radial through hole on the righting wing of the anchor body; the upper end of the input magnetic shoe seat and the output shaft of the motor are fixed by a transmission pin; the lower end of the inner cavity of the output magnetic shoe seat is connected with the end screw thread on the outer circle of the righting cylinder; the upper end of the stirring head is connected with the lower end of the transmission shaft through a screw thread. The viscous drilling fluid is electrically stirred, so that the well dredging effect is effectively realized; by adopting a magnetic driving technology, the motor and the electromagnet are sealed in a static sealing mode, and the sealing is safe and reliable.
Description
Technical Field
The invention relates to a drilling fluid stirring drifting tool used in the fields of well drilling and well logging in the petroleum and gas industry.
Background
In the development process of the petroleum and natural gas industry, the drilling engineering has high technical difficulty, large economic investment and complex construction, and is an extremely important link in the development process of oil and gas reservoirs. In the drilling and completion process, a large number of logging instruments are needed to detect the downhole condition, and the logging instruments are usually lowered to the downhole working position through a cable under the action of gravity, so that the logging instruments and the cable can smoothly pass through the drilling fluid in the casing. However, due to particle sedimentation, formation temperature, particularly cement slurry coagulation heat release in the well completion process and the like, drilling fluid in the casing is easily more viscous, and huge structural force is generated, so that a logging instrument cannot be placed in a working area under the action of gravity. In which case a drifting operation is required.
At present, the drifting operation generally adopts a metal rod and a hard plastic rod, and high-viscosity substances such as mud blocks in drilling fluid are barreled at a wellhead in a manual reciprocating stamping mode. Under the condition of a certain depth, the conventional drifting mode can not complete drifting work frequently, and particularly under the condition that a viscous section is long, the drifting method is difficult to have an effect, and the drifting mode is long in period, low in efficiency and high in manual labor intensity.
Based on the technical background, the invention particularly provides a drilling fluid stirring drifting tool, which effectively improves the efficiency of drifting operation and reduces the operation cost.
Disclosure of Invention
The purpose of the invention is: in order to solve the problem that a logging instrument is effectively put down a well and the drifting operation is effectively completed, the drilling fluid stirring drifting tool is specially provided.
In order to achieve the purpose, the invention adopts the following technical scheme: a drilling fluid stirring drifting tool is composed of a cable, a taper sleeve, a locking nut, a locking joint, a connector, an electromagnet, an electromagnetic sealing seat, a central spring, an anchor body, a pressing plate, a screw a, an anchoring spring, an anchor claw, an armature, a transition joint, a motor positioning cylinder, a screw b, a transmission pin, an input magnetic shoe seat, an input magnetic shoe, an output magnetic shoe seat, a sealing isolation sleeve, an angular contact ball bearing, a centering cylinder, a positioning nut, an upper transmission sleeve, a sliding pin, a lower transmission sleeve, a transmission shaft and a stirring head; the structure is characterized in that: the cable consists of an insulating sheath and a wire core, wherein the wire core at one end of the cable is respectively communicated with the electromagnet and the motor, and the wire core at the other end of the cable is communicated with the ground electric control platform; the cable passes through the inner hole of the locking connector, and the inner hole of the locking connector and the cable insulation sheath are sealed by a sealing ring; four split parts are uniformly arranged on the upper part of the locking joint in the axial direction, the excircle of each split part is a conical surface, and the inner holes of the four split parts are in a sawtooth groove structure; the conical sleeve inner cavity is provided with a conical hole, and the conical hole of the conical sleeve inner cavity is tightly attached to four split conical surfaces at the upper part of the locking joint; the middle part of the outer circle of the locking joint is in threaded connection with the lower part of the inner cavity of the locking nut, and the lower part of the outer circle of the locking joint is in threaded connection with the upper part of the inner hole of the connector; the electromagnetic sealing seat is made of a non-magnetic material 304 stainless steel, and the electromagnet is arranged on the upper part of an inner cavity of the electromagnetic sealing seat; the upper end of the excircle of the electromagnetic sealing seat is connected with the lower end of the inner hole of the connector in a threaded manner, the lower end of the electromagnetic sealing seat is inserted into the inner hole of the transition joint, and the contact surface of the lower end of the electromagnetic sealing seat and the transition joint is sealed by a sealing ring; the anchor body is made of a non-magnetic material 304 stainless steel, the upper end of the inner cavity of the anchor body is in threaded connection with the lower end of the excircle of the connector, and the lower end of the inner cavity of the anchor body is in threaded connection with the upper end of the excircle of the transition connector; three righting wings are uniformly arranged on the outer circumference of the anchor body in the circumferential direction, three radial through holes are uniformly formed in each righting wing to be communicated with the space of the inner cavity and the outer cavity of the anchor body, an axial groove is formed in each righting wing, and four screw holes are uniformly formed in each axial groove; the armature is made of magnetic conductive material, a circle of step surface is arranged in the inner cavity of the armature, and three conical surfaces are uniformly arranged on the outer circle of the armature in the axial direction; the armature is arranged in the inner cavity of the anchor body; one end of the central spring presses the step surface of the inner cavity of the armature, and the other end presses the step surface of the excircle of the electromagnetic sealing seat; one end of the fluke is provided with a ball head, the middle part of the end surface of the other end of the fluke is provided with a groove, the bottom of the groove is provided with a counter bore, and the anchoring spring is arranged in the counter bore at the bottom of the fluke groove; the fluke and the anchoring spring are integrally arranged in a radial through hole on the righting wing of the anchor body, and a ball head at the end part of the fluke is contacted with a conical surface of the excircle of the armature; the pressing plate penetrates through a groove in the middle of the end face of the anchor fluke and is fixed in an axial groove in the anchor body righting wing through a screw a; the upper end of the inner cavity of the motor fixing cylinder is connected with the lower end of the excircle of the transition joint in a threaded manner; a circle of raised steps are arranged at the lower part of the inner cavity of the motor fixing cylinder, and four countersunk holes are uniformly arranged on the raised steps in the circumferential direction; the motor is arranged in the inner cavity of the motor fixing cylinder, four screws b penetrate through four countersunk holes on a raised step at the lower part of the inner cavity of the motor fixing cylinder, and the screws b are fixed with the motor; the input magnetic shoe seat is made of a non-magnetic material 304 stainless steel, a circle of annular groove is formed in the lower end face of the input magnetic shoe seat, the eight input magnetic shoes are sequentially fixed in the annular groove in the lower end face of the input magnetic shoe seat, and the input magnetic shoes are made of a strong magnetic material; the inner hole of the input magnetic shoe seat is inserted into the output shaft of the motor, and the upper end of the input magnetic shoe seat and the output shaft of the motor are fixed by a transmission pin; the sealing isolation sleeve is made of a non-magnetic material 304 stainless steel, an inner cavity in the upper part of the sealing isolation sleeve is provided with a blind hole, and the lower end surface of the sealing isolation sleeve is provided with a threaded hole; the upper end of the inner cavity of the sealed isolation sleeve is connected with the lower end of the excircle of the motor fixing cylinder through a screw thread; the eight output magnetic shoes are sequentially fixed in the inner cavity of the output magnetic shoe seat and made of strong magnetic materials; six righting wings are uniformly arranged in the middle of the outer circle of the righting cylinder in the circumferential direction; two angular contact ball bearings are arranged in an inner hole of the righting cylinder, and the lower end of an inner cavity of the output magnetic shoe seat is in threaded connection with the upper end of the outer circle of the righting cylinder; the inner cavity of the righting cylinder is inserted into the lower part of the outer circle of the sealing isolation sleeve, the inner holes of the two angular contact ball bearings are in clearance fit with the lower part of the outer circle of the sealing isolation sleeve, and the positioning screw cap is in threaded connection with the lower end of the sealing isolation sleeve; six pin grooves are uniformly formed in the circumferential direction at the lower end of the inner cavity of the upper transmission sleeve; six pin chutes are uniformly arranged on the upper part of the excircle of the transmission shaft in the circumferential direction; the transmission shaft is arranged in an inner cavity of the upper transmission sleeve, and the sliding pin is arranged in a cavity formed by a pin groove in the inner cavity of the upper transmission sleeve and a pin sliding groove on the excircle of the transmission shaft; the upper end of the lower transmission sleeve is connected with the lower end of the upper transmission sleeve through screw threads; the upper end of the stirring head is connected with the lower end of the transmission shaft through a screw thread; the outer circle of the stirring head is provided with a helical blade, and a round hole is formed in the helical blade.
The invention has the beneficial effects that: (1) the cable is lowered, and the viscous drilling fluid is stirred electrically, so that the well dredging effect is effectively realized; (2) in the stirring drifting, the anchor flukes are used for acting the reaction torque on the wall of the casing, so that the side effects of cable torsion and the like are avoided; (3) the magnetic driving technology is adopted, the dynamic sealing problem caused by mechanical transmission is avoided, and the motor and the electromagnet are sealed in a static sealing mode, so that the sealing is safe and reliable; (4) the positive and negative rotation of the motor is controlled on the ground, and the stirring head axially reciprocates under the action of the helical blade, so that long-distance well dredging can be effectively realized, and the well dredging efficiency is high; (5) the magnetic driving mode can effectively avoid the occurrence of motor overload; (6) the current of the motor is monitored on the ground, the underground load condition can be fed back in real time, and the monitoring is convenient; (7) the ground electric control platform is used for controlling and is simple to operate.
Drawings
Fig. 1 is a schematic structural diagram of a drilling fluid stirring drifting tool of the invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a sectional view taken along line B-B of fig. 1.
Fig. 4 is a sectional view of the C-C in fig. 1.
Fig. 5 is a schematic three-dimensional structure of a drilling fluid stirring drifting tool of the present invention.
Figure 6 is a schematic three-dimensional view of the anchor body, fluke, etc.
Fig. 7 is a three-dimensional structure schematic diagram of components of the centralizing cylinder, the transmission shaft, the stirring head and the like.
Fig. 8 is a three-dimensional structure diagram of the locking joint.
Figure 9 is a schematic three-dimensional structure of a fluke.
Fig. 10 is a schematic three-dimensional structure of the stirring head.
In the figure: 1. the magnetic bearing type electric motor comprises a cable, 2. a taper sleeve, 3. a locking nut, 4. a locking joint, 5. a connector, 6. an electromagnet, 7. an electromagnetic sealing seat, 8. a central spring, 9. an anchor body, 10. a pressing plate, 11. a screw a, 12. an anchoring spring, 13. an anchor claw, 14. an armature, 15. a transition joint, 16. a motor, 17. a motor fixing cylinder, 18. a screw b, 19. a driving pin, 20. an input magnetic shoe seat, 21. an input magnetic shoe, 22. an output magnetic shoe, 23. an output magnetic shoe seat, 24. a sealing isolation sleeve, 25. an angular contact ball bearing, 26. a righting cylinder, 27. a positioning nut, 28. an upper driving sleeve, 29. a sliding pin, 30. a lower driving sleeve, 31. a driving shaft, 32. a stirring head, 321. a spiral blade.
Detailed Description
As shown in fig. 1 and 5, the drilling fluid stirring drifting tool of the present invention is composed of a cable 1, a taper sleeve 2, a lock nut 3, a lock joint 4, a connector 5, an electromagnet 6, an electromagnetic seal seat 7, a center spring 8, an anchor body 9, a pressure plate 10, a screw a11, an anchor spring 12, an anchor claw 13, an armature 14, a transition joint 15, a motor 16, a motor fixing cylinder 17, a screw b18, a driving pin 19, an input magnetic shoe seat 20, an input magnetic shoe 21, an output magnetic shoe 22, an output magnetic shoe seat 23, a seal isolation sleeve 24, an angular contact ball bearing 25, a righting cylinder 26, a positioning nut 27, an upper driving sleeve 28, a sliding pin 29, a lower driving sleeve 30, a driving shaft 31 and a stirring head 32; the method is characterized in that: the cable 1 consists of an insulating sheath and a wire core, the wire core at one end of the cable 1 is respectively communicated with the electromagnet 6 and the motor 16, and the wire core at the other end of the cable 1 is communicated with the ground electric control platform; the cable 1 passes through an inner hole of the locking joint 4, and the inner hole of the locking joint 4 and the insulating sheath of the cable 1 are sealed by a sealing ring; an inner cavity of the taper sleeve 2 is provided with a conical hole, and the conical hole of the inner cavity of the taper sleeve 2 is tightly attached to four split conical surfaces at the upper part of the locking joint 4; the middle part of the excircle of the locking joint 4 is in threaded connection with the lower part of the inner cavity of the locking nut 3, and the lower part of the excircle of the locking joint 4 is in threaded connection with the upper part of the inner hole of the connector 5; the electromagnetic sealing seat 7 is made of 304 stainless steel which is a non-magnetic material, and the electromagnet 6 is arranged on the upper part of the inner cavity of the electromagnetic sealing seat 7; the upper end of the excircle of the electromagnetic sealing seat 7 is connected with the lower end of the inner hole of the connector 5 through a screw thread, the lower end of the electromagnetic sealing seat 7 is inserted into the inner hole of the transition joint 15, and the contact surface between the lower end of the electromagnetic sealing seat 7 and the transition joint 15 is sealed by a sealing ring; the anchor body 9 is made of a non-magnetic material 304 stainless steel, the upper end of the inner cavity of the anchor body 9 is in threaded connection with the lower end of the excircle of the connector 5, and the lower end of the inner cavity of the anchor body 9 is in threaded connection with the upper end of the excircle of the transition joint 15; three centering wings are uniformly arranged on the outer circumference of the anchor body 9 in the circumferential direction, three radial through holes are uniformly formed in each centering wing to be communicated with the inner cavity space and the outer cavity space of the anchor body 9, an axial groove is formed in each centering wing, and four screw holes are uniformly formed in each axial groove; the armature 14 is made of a magnetic conductive material, a circle of step surfaces are arranged in the inner cavity of the armature 14, and three conical surfaces are uniformly arranged on the outer circle of the armature 14 in the axial direction; the armature 14 is arranged in the inner cavity of the anchor body 9; one end of the central spring 8 presses the step surface of the inner cavity of the armature 14, and the other end presses the step surface of the excircle of the electromagnetic sealing seat 7; one end of the fluke 13 is provided with a ball head, the middle part of the end surface of the other end of the fluke 13 is provided with a groove, the bottom of the groove is provided with a counter bore, and the anchoring spring 12 is arranged in the counter bore at the bottom of the groove of the fluke 13; the fluke 13 and the anchoring spring 12 are integrally arranged in a radial through hole on a righting wing of the anchor body 9, and a ball head at the end part of the fluke 13 is contacted with a conical surface of the excircle of the armature 14; the pressing plate 10 passes through a groove in the middle of the end face of the fluke 13, and the pressing plate 10 is fixed in an axial groove on the righting wing of the anchor body 9 by a screw a 11; the upper end of the inner cavity of the motor fixing cylinder 17 is connected with the lower end of the excircle of the transition joint 15 through screw threads; a circle of raised steps are arranged at the lower part of the inner cavity of the motor fixing cylinder 17, and four countersunk holes are uniformly arranged on the raised steps in the circumferential direction; the motor 16 is arranged in the inner cavity of the motor fixing cylinder 17, four screws b18 penetrate through four counter bores on a raised step at the lower part of the inner cavity of the motor fixing cylinder 17, and the screws b18 are fixed with the motor 16; the input magnetic shoe seat 20 is made of a non-magnetic material 304 stainless steel, a ring of annular grooves are formed in the lower end face of the input magnetic shoe seat 20, eight input magnetic shoes 21 are sequentially fixed in the annular grooves in the lower end face of the input magnetic shoe seat 20, and the input magnetic shoes 21 are made of a strong magnetic material; an inner hole of the input magnetic shoe seat 20 is inserted into an output shaft of the motor 16, and the upper end of the input magnetic shoe seat 20 and the output shaft of the motor 16 are fixed by a transmission pin 19; the sealing isolation sleeve 24 is made of a non-magnetic material 304 stainless steel, an inner cavity at the upper part of the sealing isolation sleeve 24 is provided with a blind hole, and the lower end surface of the sealing isolation sleeve 24 is provided with a threaded hole; the upper end of the inner cavity of the sealing isolation sleeve 24 is connected with the lower end of the excircle of the motor fixing cylinder 17 through screw threads; the eight output magnetic shoes 22 are sequentially fixed in the inner cavity of the output magnetic shoe seat 23, and the output magnetic shoes 22 are made of strong magnetic materials; six righting wings are uniformly arranged in the circumferential direction in the middle of the outer circle of the righting cylinder 26; the two angular contact ball bearings 25 are arranged in the inner hole of the righting cylinder 26, and the lower end of the inner cavity of the output magnetic shoe seat 23 is in threaded connection with the upper end of the excircle of the righting cylinder 26; the inner cavity of the righting cylinder 26 is inserted into the lower part of the outer circle of the sealing isolation sleeve 24, the inner holes of the two angular contact ball bearings 25 are in clearance fit with the lower part of the outer circle of the sealing isolation sleeve 24, and the positioning screw cap 27 is in threaded connection with the lower end of the sealing isolation sleeve 24; six pin grooves are uniformly formed in the circumferential direction at the lower end of the inner cavity of the upper transmission sleeve 28; six pin chutes are uniformly arranged on the upper part of the outer circle of the transmission shaft 31 in the circumferential direction; as shown in fig. 4, the transmission shaft 31 is arranged in the inner cavity of the upper transmission sleeve 28, and the sliding pin 29 is arranged in a cavity formed by a pin groove in the inner cavity of the upper transmission sleeve 28 and a pin chute on the outer circle of the transmission shaft 31; the upper end of the lower transmission sleeve 30 is connected with the lower end of the upper transmission sleeve 28 through screw threads; the upper end of the stirring head 32 is connected with the lower end of the transmission shaft 31 through screw threads; the outer circle of the stirring head 32 is provided with a helical blade 321, and the helical blade 321 is provided with a round hole.
As shown in fig. 8, four segments are uniformly arranged on the upper portion of the locking joint 4 in the axial direction, the outer circles of the four segments are arranged to be conical surfaces, and the inner holes of the four segments are arranged to be sawtooth groove structures.
As shown in fig. 2, 6 and 9, one end of fluke 13 is provided with a ball head, the middle part of the end surface of the other end of fluke 13 is provided with a groove, the bottom of the groove is provided with a counter bore, and anchoring spring 12 is installed in the counter bore at the bottom of the groove of fluke 13; the fluke 13 and the anchoring spring 12 are integrally arranged in a radial through hole on a righting wing of the anchor body 9, and a ball head at the end part of the fluke 13 is contacted with a conical surface of the excircle of the armature 14; the pressure plate 10 passes through the groove in the middle of the end face of the fluke 13, and the pressure plate 10 is fixed in the axial groove on the righting wing of the anchor body 9 by a screw a 11.
As shown in fig. 3, eight input magnetic shoes 21 are sequentially fixed in the annular groove on the lower end surface of the input magnetic shoe seat 20, and eight output magnetic shoes 22 are sequentially fixed in the inner cavity of the output magnetic shoe seat 23.
As shown in fig. 7 and 10, the upper end of the lower transmission sleeve 30 is screwed with the lower end of the upper transmission sleeve 28; the upper end of the stirring head 32 is connected with the lower end of the transmission shaft 31 through screw threads; the outer circle of the stirring head 32 is provided with a helical blade 321, and the helical blade 321 is provided with a round hole.
The working principle of the drilling fluid stirring drifting tool provided by the invention is as follows: after the invention is assembled, the well dredging tool is put down, and the well dredging tool can start working when the well blocking section is put down. The ground control electromagnet 6 is electrified, the armature 14 is attracted to move upwards axially at the moment, and under the action of the outer conical surface of the armature 14, the anchor fluke 13 radially extends out to clamp the wall of the sleeve to realize anchoring; the ground control motor 16 rotates, the output shaft of the motor 16 drives the input magnetic shoe seat 20 to rotate, the input magnetic shoe seat 20 drives the output magnetic shoe seat 23 to rotate, the torque is finally transmitted to the transmission shaft 31 and the stirring head 32 through the righting cylinder 26, the upper transmission sleeve 28 and the sliding pin 29, the stirring head 32 rotates at a high speed and stirs drilling fluid, under the action of the helical blade 321, the stirring head 32 and the transmission shaft 31 rotate and axially advance at the same time, the drilling fluid advances to a certain stroke (the current of the motor 16 is obviously increased to judge that the drilling fluid advances to a limit position), the motor 16 is controlled to rotate reversely, the stirring head 32 and the transmission shaft 31 rotate and axially retract at the same time, and thus the motor 16 repeatedly controls the forward and reverse directions to realize continuous reciprocating well communication and achieve.
Claims (2)
1. A drilling fluid stirring drifting tool comprises a cable (1), a taper sleeve (2), a locking nut (3), a locking joint (4), a connector (5), an electromagnet (6), an electromagnetic sealing seat (7), a central spring (8), an anchor body (9), a pressure plate (10), a screw a (11), an anchoring spring (12), an anchor claw (13), an armature (14), a transition joint (15) and a motor (16), the device comprises a motor fixing cylinder (17), a screw b (18), a transmission pin (19), an input magnetic shoe seat (20), an input magnetic shoe (21), an output magnetic shoe (22), an output magnetic shoe seat (23), a sealing isolation sleeve (24), an angular contact ball bearing (25), a centering cylinder (26), a positioning nut (27), an upper transmission sleeve (28), a sliding pin (29), a lower transmission sleeve (30), a transmission shaft (31) and a stirring head (32); the method is characterized in that: the cable (1) is composed of an insulating sheath and wire cores, the wire cores at one end of the cable (1) are respectively communicated with the electromagnet (6) and the motor (16), and the wire cores at the other end of the cable (1) are communicated with the ground electric control platform; the cable (1) passes through the inner hole of the locking joint (4), and the inner hole of the locking joint (4) and the insulating sheath of the cable (1) are sealed by a sealing ring; four split parts are axially and uniformly arranged at the upper part of the locking joint (4), the outer circles of the four split parts are set to be conical surfaces, and the inner holes of the four split parts are set to be sawtooth groove structures; an inner cavity of the taper sleeve (2) is provided with a conical hole, and the conical hole of the inner cavity of the taper sleeve (2) is tightly attached to four split conical surfaces at the upper part of the locking joint (4); the middle part of the excircle of the locking joint (4) is in threaded connection with the lower part of the inner cavity of the locking nut (3), and the lower part of the excircle of the locking joint (4) is in threaded connection with the upper part of the inner hole of the connector (5); the electromagnetic sealing seat (7) is made of a non-magnetic material 304 stainless steel, and the electromagnet (6) is arranged at the upper part of the inner cavity of the electromagnetic sealing seat (7); the upper end of the excircle of the electromagnetic sealing seat (7) is connected with the lower end of the inner hole of the connector (5) in a threaded manner, the lower end of the electromagnetic sealing seat (7) is inserted into the inner hole of the transition joint (15), and the contact surface of the lower end of the electromagnetic sealing seat (7) and the transition joint (15) is sealed by a sealing ring; the anchor body (9) is made of a non-magnetic material 304 stainless steel, the upper end of the inner cavity of the anchor body (9) is in threaded connection with the lower end of the excircle of the connector (5), and the lower end of the inner cavity of the anchor body (9) is in threaded connection with the upper end of the excircle of the transition joint (15); the armature (14) is made of a magnetic conductive material, a circle of step surfaces are arranged in the inner cavity of the armature (14), and three conical surfaces are uniformly arranged on the outer circle of the armature (14) in the axial direction; the armature (14) is arranged in the inner cavity of the anchor body (9); one end of the central spring (8) presses the step surface of the inner cavity of the armature (14), and the other end presses the step surface of the excircle of the electromagnetic sealing seat (7); the anchoring spring (12) is arranged in a counter bore at the bottom of the groove of the anchor fluke (13); the fluke (13) and the anchoring spring (12) are integrally arranged in a radial through hole on the righting wing of the anchor body (9), and a ball head at the end part of the fluke (13) is contacted with a conical surface of the excircle of the armature (14); the pressing plate (10) penetrates through a groove in the middle of the end face of the fluke (13), and the pressing plate (10) is fixed in an axial groove in a righting wing of the anchor body (9) through a screw a (11); the upper end of the inner cavity of the motor fixing cylinder (17) is connected with the lower end of the excircle of the transition joint (15) in a threaded manner; a circle of raised steps are arranged at the lower part of the inner cavity of the motor fixing cylinder (17), and four countersunk holes are uniformly arranged on the raised steps in the circumferential direction; the motor (16) is arranged in the inner cavity of the motor fixing cylinder (17), four screws b (18) penetrate through four countersunk holes on a raised step at the lower part of the inner cavity of the motor fixing cylinder (17), and the screws b (18) are fixed with the motor (16); the input magnetic shoe seat (20) is made of a non-magnetic material 304 stainless steel, a circle of annular groove is formed in the lower end face of the input magnetic shoe seat (20), eight input magnetic shoes (21) are sequentially fixed in the annular groove in the lower end face of the input magnetic shoe seat (20), and the input magnetic shoes (21) are made of a strong magnetic material; an inner hole of the input magnetic shoe seat (20) is inserted into an output shaft of the motor (16), and the upper end of the input magnetic shoe seat (20) and the output shaft of the motor (16) are fixed by a transmission pin (19); the sealing isolation sleeve (24) is made of a non-magnetic material 304 stainless steel, an inner cavity at the upper part of the sealing isolation sleeve (24) is provided with a blind hole, and the lower end surface of the sealing isolation sleeve (24) is provided with a threaded hole; the upper end of the inner cavity of the sealing isolation sleeve (24) is in threaded connection with the lower end of the excircle of the motor fixing cylinder (17); the eight output magnetic shoes (22) are sequentially fixed in the inner cavity of the output magnetic shoe seat (23), and the output magnetic shoes (22) are made of strong magnetic materials; six righting wings are uniformly arranged in the circumferential direction in the middle of the outer circle of the righting cylinder (26); two angular contact ball bearings (25) are arranged in an inner hole of the righting cylinder (26), and the lower end of an inner cavity of the output magnetic shoe seat (23) is in threaded connection with the upper end of the excircle of the righting cylinder (26); the inner cavity of the righting cylinder (26) is inserted into the lower part of the excircle of the sealing isolation sleeve (24), the inner holes of the two angular contact ball bearings (25) are in clearance fit with the lower part of the excircle of the sealing isolation sleeve (24), and the positioning screw cap (27) is in threaded connection with the lower end of the sealing isolation sleeve (24); six pin grooves are uniformly formed in the circumferential direction at the lower end of the inner cavity of the upper transmission sleeve (28); six pin chutes are uniformly arranged on the upper part of the excircle of the transmission shaft (31) in the circumferential direction; the transmission shaft (31) is arranged in the inner cavity of the upper transmission sleeve (28), and the sliding pin (29) is arranged in a cavity formed by a pin groove in the inner cavity of the upper transmission sleeve (28) and a pin chute on the excircle of the transmission shaft (31); the upper end of the lower transmission sleeve (30) is connected with the lower end of the upper transmission sleeve (28) through screw threads; the upper end of the stirring head (32) is connected with the lower end of the transmission shaft (31) through screw threads; the outer circle of the stirring head (32) is provided with a helical blade 321, and the helical blade 321 is provided with a round hole; the electromagnet (6) is controlled to be electrified, the electromagnet (6) after being electrified attracts the armature (14) to move upwards in the axial direction, and under the action of the outer conical surface of the armature (14), the anchor fluke (13) radially extends out to clamp the wall of the sleeve to realize anchoring.
2. The drilling fluid stirring drifting tool of claim 1, wherein: three centering wings are uniformly arranged on the outer circumference of the anchor body (9), three radial through holes are uniformly formed in each centering wing to be communicated with the inner cavity space and the outer cavity space of the anchor body (9), an axial groove is formed in each centering wing, and four screw holes are uniformly formed in each axial groove; one end of the anchor fluke (13) is provided with a ball head, the middle part of the end surface of the other end of the anchor fluke (13) is provided with a groove, and the bottom of the groove is provided with a counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417413.8A CN108533201B (en) | 2018-05-04 | 2018-05-04 | Drilling fluid stirring drifting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417413.8A CN108533201B (en) | 2018-05-04 | 2018-05-04 | Drilling fluid stirring drifting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108533201A CN108533201A (en) | 2018-09-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109779550B (en) * | 2019-03-26 | 2020-11-03 | 西华大学 | Boosting tool for shale gas horizontal well logging instrument |
| CN112377126B (en) * | 2020-11-30 | 2023-07-04 | 北京泽天盛海石油工程技术有限公司 | Hydraulic drill feeding tool for horizontal well |
| CN113944435A (en) * | 2021-10-15 | 2022-01-18 | 中煤科工集团重庆研究院有限公司 | Method for installing detection while drilling equipment in drill collar and spacing adjusting device thereof |
| CN114046140B (en) * | 2022-01-13 | 2022-03-15 | 东营市兆鑫工贸有限责任公司 | Separate zone water injection water distributor convenient to salvage blanking plug |
Citations (3)
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|---|---|---|---|---|
| CN105840113A (en) * | 2016-03-25 | 2016-08-10 | 西南石油大学 | Linkage type drill stem anti-twist tool |
| CN106958429A (en) * | 2017-04-11 | 2017-07-18 | 西南石油大学 | A kind of horizontal well pressurization driving tool |
| CN107701139A (en) * | 2017-10-24 | 2018-02-16 | 西华大学 | Fishing tool in a kind of steel wire rope pipe |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840113A (en) * | 2016-03-25 | 2016-08-10 | 西南石油大学 | Linkage type drill stem anti-twist tool |
| CN106958429A (en) * | 2017-04-11 | 2017-07-18 | 西南石油大学 | A kind of horizontal well pressurization driving tool |
| CN107701139A (en) * | 2017-10-24 | 2018-02-16 | 西华大学 | Fishing tool in a kind of steel wire rope pipe |
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