CN103437701B - Local electric rotary drilling device - Google Patents
Local electric rotary drilling device Download PDFInfo
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- CN103437701B CN103437701B CN201310414632.8A CN201310414632A CN103437701B CN 103437701 B CN103437701 B CN 103437701B CN 201310414632 A CN201310414632 A CN 201310414632A CN 103437701 B CN103437701 B CN 103437701B
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- local electric
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Abstract
The invention relates to a local electric rotary drilling device. The local electric rotary drilling device comprises an upper drill rod, a drill collar, an upper short joint, a local electric rotary device, a lower short joint and a drill bit, wherein the local electric rotary device is connected with the upper short joint and the lower short joint by threads; the central shaft of the local electric rotary device penetrates through from an inner barrel; a rotary outer barrel is sleeved outside the inner barrel; a connection pin is arranged between the inner barrel and the rotary outer barrel; an axial-flow hydroelectric generator, an upper electricity storage, a motor, a lower electricity storage, a piezoelectric transducer and a pressure-bearing device are sequentially installed in the inert barrel from top to bottom; the axial-flow hydroelectric generator, the upper electricity storage and the motor are sequentially connected; the lower electricity storage is also connected with the motor; the motor is connected with the central shaft and the inner barrel respectively; the pressure-bearing device is connected with the piezoelectric transducer; and the piezoelectric transducer is connected with the lower electricity storage. According to the local electric rotary drilling device disclosed by the invention, a part of the dynamic energy of a fluid is converted to electric energy and stored, then a drill tool at the bottom is driven to rotate to drill, thus the dynamic energy and pressure energy of the drilling fluid are adequately utilized, and the drilling rate is increased.
Description
One, technical field:
What the present invention relates to is the drilling rig broken in petroleum drilling engineering in rock technology field, and what be specifically related to is the electronic rotary drilling device in local.
Two, background technology:
Along with the development of drilling technology, drilling technology and drilling tool have also been obtained fast development.Particularly along with the increasing number of the exceptional well such as horizontal well, extended reach well, accelerate new drilling technology and new downhole tool research and development speed.Drilling mode commonly use up till now from percussion drill rotary drilling, rotary steerable drilling, geologic steering drilling, again to the drilling mode that casing drilling, laser drill etc. are new.
At present, the technical difficult points of drilling technology mainly comprises: safe and efficient the creeping into of (1) deep formation extended horizontal well exists technical bottleneck; (2) complex hydrocarbon layer, bad ground proportion increase year by year, need new drilling mode constantly to supplement present drilling technology.The drilling engineering actual conditions current for China and the technological difficulties of long horizontal sections horizontal well drilling, be badly in need of Development of Novel, efficiently drilling technology.
Modern drilling technology grows up on the basis of the rotary drilling drilling well of percussion drill, rotary drilling, hydraulic jet, is the drilling technology means be most widely used.But for creeping into of some complicated well type, as extended horizontal well, long horizontal sections horizontal well drilling etc., rotary drilling exists many drawbacks, as the restriction by the aspect such as drilling tool intensity and casing programme, drilling failure takes place frequently, drilling cost is high.
Three, summary of the invention:
An object of the present invention is to provide the electronic rotary drilling device in local, it is low for existing drilling rig rate of penetration, the problem of the large solution of downhole tool drag and torque.
The technical solution adopted for the present invention to solve the technical problems is: this local electronic rotary drilling device comprises top rod, drill collar, upper short circuit, local electric rotary body, lower short circuit, drill bit, and local electric rotary body is connected with upper and lower short circuit by screw thread, local electric rotary body comprises screw thread, axial-flow type hydroelectric generator, rotate urceolus, upper electrical storage device, motor, central axis, connecting pin, inner core, lower electrical storage device, piezoelectric transducer, pressure-bearing device, lower screw thread, upper screw thread is connected with upper drilling tool, lower screw thread is connected with lower drilling tool, central axis passes from inner core, rotating urceolus is nested with outer tube, connecting pin is had between inner core and rotation urceolus, installation shaft flow type hydraulic power generation machine successively from top to bottom in inner core, upper electrical storage device, motor, lower electrical storage device, piezoelectric transducer, pressure-bearing device, axial-flow type hydroelectric generator, upper electrical storage device, motor connects successively, lower electrical storage device also connecting motor, motor connects central axis and inner core respectively, pressure-bearing device connects piezoelectric transducer, piezoelectric transducer connects lower electrical storage device.
Such scheme axis streaming hydroelectric generator comprises excitation system, support, generator, top chock, rotating shaft, step, the hydraulic turbine; Rotating shaft one end is connected with generator amature by top chock, and the rotating shaft other end is connected with the hydraulic turbine by step; Generator upper surface mounting base, support arranges excitation system.
Beneficial effect:
(1) in drilling well in the past, mainly by rotary drill column, or drive bottom power drilling tool to rotate by swiftly flowing drilling fluid, and drill bit is applied to certain the pressure of the drill creeps into; The part kinetic energy of fluid is converted into electric energy by this device by by the electronic rotary drilling device in local and stores by the present invention, drives bottom drill tool to rotate and creeps into, make use of kinetic energy and the pressure energy of drilling fluid fully, improve drilling speed.
(2) compared with traditional rotary drilling, the electronic rotary drilling customer service in local some shortcomings of rotary drilling in the past, as well head applies moment of torsion, are delivered to drill bit place, shaft bottom loss of machine of torque large;
(3) Electronic control is accurate, can provide electric energy for DHM-MWD device;
(4) the vibratory impulse energy of drilling tool can be utilized, be translated into utilizable electric energy, the harm that drill string vibration brings can be prevented, also can continue to creep into provide electric energy simultaneously;
(5) local electric rotary body can reduce the frictional resistance of underground drill stem by rotating urceolus, improve the standard well and extended horizontal well ultimate extension ability;
(6) tool construction is simple, service behaviour safety, reliable, be convenient to existing drilling tool with the use of;
(7) this local drilling tool and drilling mode make drilling efficiency be improved, and then improve the Efficient Development of oil-gas reservoir.
Four, accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of local electric rotary body in the present invention;
Fig. 3 is the structural representation of axis streaming hydroelectric generator of the present invention.
On 1 drilling rod 2 drill collar 3, on short circuit 4 local electric rotary body 5 times short circuit 6 drill bits 7, screw thread 8 axial-flow type hydroelectric generator 9 rotates electrical storage device 11 motor 12 central axis 13 connecting pin 14 inner core 15 times electrical storage device 16 piezoelectric transducer 17 pressure-bearing devices 18 times screw thread 19 excitation system 20 support 21 generator 22 top chock 23 rotating shaft 24 step 25 water guide cover 26 hydraulic turbines on urceolus 10.
Five, detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in Figure 1, this local electronic rotary drilling device comprises top rod 1, drill collar 2, upper short circuit 3, local electric rotary body 4, lower short circuit 5, drill bit 6, drill collar 2 is connected with top rod 1 by screw thread, local electric rotary body 4 is connected with upper and lower short circuit by screw thread, and lower short circuit 5 is connected with bottom drill bit 6.Drilling tool is each size of the universal standard, and realizing on respective function basis, can be well on connection easily and efficiently.
As shown in Figure 2, local electric rotary body 4 comprises screw thread 7, axial-flow type hydroelectric generator 8, rotate urceolus 9, upper electrical storage device 10, motor 11, central axis 12, connecting pin 13, inner core 14, lower electrical storage device 15, piezoelectric transducer 16, pressure-bearing device 17, lower screw thread 18, upper screw thread 7 is connected with upper drilling tool, lower screw thread 18 is connected with lower drilling tool, central axis 12 passes from inner core 14, rotating urceolus 9 is nested with outside inner core 14, connecting pin 13 is had between inner core 14 and rotation urceolus 9, installation shaft flow type hydraulic power generation machine 8 successively from top to bottom in inner core 14, upper electrical storage device 10, motor 11, lower electrical storage device 15, piezoelectric transducer 16, pressure-bearing device 17, axial-flow type hydroelectric generator 8, upper electrical storage device 10, motor 11 connects successively, lower electrical storage device 15 also connecting motor 11, motor 11 connects central axis 12 and inner core 14 respectively, pressure-bearing device 17 connects piezoelectric transducer 16, piezoelectric transducer 16 connects lower electrical storage device 15.Piezoelectric transducer 16 is electroceramics sheet or magnetostriction materials.Upper screw thread 7 is internal thread, is arranged on the inwall of top connector, and lower screw thread 18 is external screw thread, is arranged on the outer wall of bottom connector.
As shown in Figure 3, axial-flow type hydroelectric generator 8 comprises excitation system 19, support 20, generator unit stator and rotor, top chock 22, rotating shaft 23, step 24, water guide cover 25, the hydraulic turbine 26; Rotating shaft 23 one end is connected with generator 21 rotor by top chock 22, and rotating shaft 23 other end is connected with the hydraulic turbine 26 by step 24, and water guide cover 25 is arranged on the hydraulic turbine 26; Install stators and rotators in generator 21, generator 21 upper surface mounting base 20, support 20 is arranged excitation system 19.The hydraulic turbine 26 is rotary work under inner drilling fluid drives, rotating shaft 23 drive electrical generators rotor rotates, the magnetic field that the voltage that excitation system 19 controls generator unit stator makes it change, rotor rotary electrification, and by power storage in upper electrical storage device 10, the motor 11 that upper electrical storage device 10 connects is with central shaft 12 and inner core 14 jointly to rotate, for bottom drill tool rotary drilling provides electric energy.Inside center axle 12 drives connecting pin 13 to rotate at the inner drilling fluid of local electric rotary body 4, and driven rotary urceolus 9 rotates simultaneously, plays the effect reducing drill string frictional resistance.The kinetic energy of bottom drill tool vibration is received by pressure-bearing device 17, and is electric energy by the changes mechanical energy of vibration, not only has damping efficacy, this part ability is stored in lower electrical storage device 15, for local power driven system provides electric energy simultaneously.
Operating principle of the present invention: in drill string, swiftly flowing drilling fluid flows into the local electric rotary body 4 on bottom drill tool, drive down-hole axial-flow type hydroelectric generator 8, the electrical power storage produced is at the inside electrical storage device of this device, meanwhile, the kinetic energy of method of longitudinal vibration of drilling string is converted into electric energy by piezoelectric transducer device and is also stored among inner electrical storage device (upper electrical storage device and lower electrical storage device).Electric energy in electrical storage device drives inside center axle 12 to promote bottom drill tool and creeps into, and outside rotation urceolus 9 also can realize synchronous backward and rotate, and change sliding friction is pivoting friction, for the guide digging of bottom drill tool reduces resistance.
Boring method of the present invention:
(1) check that whether local electric rotary body 4 works normal, checks the sealing that this device connects, and connected successively, under lower going-into-well by above-mentioned each parts;
(2) circulating fluid, by adjusting hook load and applying the pressure of the drill to drill bit;
(3) pressure energy of drilling fluid, kinetic energy are by local electric rotary body 4, and the pressure energy of drilling fluid and kinetic transformation are electric energy and are stored;
(4) pressure-bearing cushion block receives the energy of method of longitudinal vibration of drilling string, and the pressure energy that vibration produces is converted into electric energy, is stored among the upper and lower electrical storage device in the electric rotary body of local;
(5) electric energy in upper and lower electrical storage device drives the rotation urceolus 9 of local electric rotary body 4 to rotate, and can reduce the frictional resistance of local well section;
(6) bearing of electric rotary body 4 inside, local drives bottom drill tool to rotate, and axle power and moment of torsion is delivered to bottom drill bit, bit attrition crushing rock.
Claims (2)
1. the electronic rotary drilling device in local, it is characterized in that: this local electronic rotary drilling device comprises top rod (1), drill collar (2), upper short circuit (3), local electric rotary body (4), lower short circuit (5), drill bit (6), and local electric rotary body (4) is connected with upper and lower short circuit by screw thread, local electric rotary body (4) comprises screw thread (7), axial-flow type hydroelectric generator (8), rotate urceolus (9), upper electrical storage device (10), motor (11), central axis (12), connecting pin (13), inner core (14), lower electrical storage device (15), piezoelectric transducer (16), pressure-bearing device (17), lower screw thread (18), upper screw thread (7) is connected with upper drilling tool, lower screw thread (18) is connected with lower drilling tool, central axis (12) passes from inner core (14), rotating urceolus (9) is nested with at inner core (14) outward, inner core (14) and rotate between urceolus (9) and have connecting pin (13), installation shaft flow type hydraulic power generation machine (8) successively from top to bottom in inner core (14), upper electrical storage device (10), motor (11), lower electrical storage device (15), piezoelectric transducer (16), pressure-bearing device (17), axial-flow type hydroelectric generator (8), upper electrical storage device (10), motor (11) connects successively, lower electrical storage device (15) also connecting motor (11), motor (11) connects central axis (12) and inner core (14) respectively, and pressure-bearing device (17) connects piezoelectric transducer (16), and piezoelectric transducer (16) connects lower electrical storage device (15).
2. the electronic rotary drilling device in local according to claim 1, is characterized in that: described axial-flow type hydroelectric generator (8) comprises excitation system (19), support (20), generator (21), top chock (22), rotating shaft (23), step (24), the hydraulic turbine (26); Rotating shaft (23) one end is connected with generator amature by top chock (22), and rotating shaft (23) other end is connected with the hydraulic turbine (26) by step; Generator (21) upper surface mounting base (20), support (20) is arranged excitation system (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310414632.8A CN103437701B (en) | 2013-09-13 | 2013-09-13 | Local electric rotary drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310414632.8A CN103437701B (en) | 2013-09-13 | 2013-09-13 | Local electric rotary drilling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103437701A CN103437701A (en) | 2013-12-11 |
| CN103437701B true CN103437701B (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310414632.8A Expired - Fee Related CN103437701B (en) | 2013-09-13 | 2013-09-13 | Local electric rotary drilling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103437701B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277236B (en) * | 2015-11-30 | 2018-02-13 | 上海帝可容数字科技有限公司 | No-dig technique sensing device and drilling rod |
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2013
- 2013-09-13 CN CN201310414632.8A patent/CN103437701B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN103437701A (en) | 2013-12-11 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20180913 |