CN103352656A - Drilling system - Google Patents
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- CN103352656A CN103352656A CN2013103366693A CN201310336669A CN103352656A CN 103352656 A CN103352656 A CN 103352656A CN 2013103366693 A CN2013103366693 A CN 2013103366693A CN 201310336669 A CN201310336669 A CN 201310336669A CN 103352656 A CN103352656 A CN 103352656A
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- 238000005553 drilling Methods 0.000 title claims abstract description 75
- 239000002131 composite material Substances 0.000 claims abstract description 48
- 230000010365 information processing Effects 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 210000002445 nipple Anatomy 0.000 claims description 49
- 230000005693 optoelectronics Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 13
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract 1
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- 238000004891 communication Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
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- 230000000875 corresponding effect Effects 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 5
- 230000011664 signaling Effects 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 4
- 230000005291 magnetic effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
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- 239000000243 solution Substances 0.000 description 2
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- 238000013459 approach Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
- E21B17/206—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables with conductors, e.g. electrical, optical
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor
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- Environmental & Geological Engineering (AREA)
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- Earth Drilling (AREA)
Abstract
The invention relates to a continuous-pipe intelligent electric drilling system. The drilling system comprises a ground control system, a continuous pipe and a lower drilling tool, wherein the continuous pipe is internally provided with a photoelectric composite cable, the photoelectric composite cable is internally provided with a three-phase power cable, a power cable, a signal cable and an optical cable, the ground control system comprises an injection head, a ground photoelectric converter, a PLC (programmable logic controller) control module, a roller, a rectification inverter, a boosting transformer and a ground information processing module, and the lower drilling tool comprises a connector, a cable head short section, a non-rotating connector, a telemetry short section, a power-driven power-off and circulating short section, a drilling parameters measuring short section, a well deviation measuring short section, an electric motor, an electric guide short section, a near bit measuring short section and a drill bit. For the drilling system, an electricity and information channel between the ground and the underground is established by injecting the photoelectric composite cable in the continuous pipe, thus overcoming the defects of the continuous pipe made of the composite material, and the drilling electrification and intelligentization of the continuous pipe are realized by matching with the existing continuous pipe and the equipment.
Description
Technical field
The present invention relates to a kind of oil and gas well drilling equipment, particularly a kind of well system.
Background technology
Oil and gas well drilling is a underground concealed property engineering, when especially under complex geological condition, boring complex structural well and special well, exist the difficult problem of a large amount of non-homogeneity, uncertainty, unstructuredness, nonumericization, solve drilling well "black box" problem in the urgent need to information technology, intelligent control technology are applied in the drilling engineering.
Electric power and signalling channel how to set up in drilling process between ground and the shaft bottom are to realize automation, the key of intelligent drilling.At the side signal transmission face, signal transmission form commonly used comprises mud-pulse transmission, electromagnetic transmission and sonic transmissions at present.It is low wherein to use the widest mud-pulse to exist transfer rate, and poor anti jamming capability can not be used for the shortcomings such as underbalance operating mode, and electromagnetic transmission and the decay of sound wave signal transmission, limited transmission distance.Therefore, these several transmission means all become " bottleneck " of restriction intelligent drilling technical development.
Aspect the power supply of shaft bottom, mainly rely at present down-hole battery or mud turbine generator.The drilling well of continuous-tube electric intelligent need to be installed various sensors and control module in bottom drilling well combination, and the required electrical power such as electric bottom hole drilling motor and electronic guiding pipe nipple is large, rely on the power supply of battery or mud turbine generator can not satisfy the intelligent electric drilling well to the demand of electric power, best solution is that forceful electric power and light current are introduced the shaft bottom from ground.
Aspect the direction of deflection measurement, extensively adopt at present the measurement parameter of three axis fluxgates and three axis accelerometer to calculate hole angle, azimuth and tool face azimuth.Measuring apparatus is in the close situation of ferromagnetic material, because ferromagnetic material is to the interference in earth's magnetic field, the parameter of measuring based on fluxgate is insecure, therefore at cluster well drilling well, relief well drilling well and casing window sidetracking etc., the occasion that has magnetic disturbance, conventional inclination measurement device are difficult to obtain reliable Magnetic tools face parameter.
The down-hole positive displacement motor of extensive use in drilling well is driven by drilling fluid, exists limited by fluid media (medium), and drilling parameter and the problems such as hydraulic parameters retrains mutually can not accurately be controlled output speed and the torque of positive displacement motor.In addition, have elastomeric material to make its high-temperature working performance poor in the positive displacement motor, working life is short.
Aspect the TRAJECTORY CONTROL of continuous-tube, at present mode commonly used is that spin orientation device and curved screw motor match, and the effect of spin orientation device is the tool face azimuth of rotating curved screw motor, can creep into to assigned direction after reserving the tool-face direction.When the needs drilling straight-hole, the spin orientation device need to provide lasting rotatablely moving, thereby realizes the straight line drilling well.This TRAJECTORY CONTROL mode requires the spin orientation device can provide enough driving torque overcoming the reaction torque of drill bit, so spin orientation device normal length is long, complex structure.In addition, the well that this oriented approach gets out is level and smooth not, causes continuous-tube and wall friction resistance large, and setting ability and the pressure of the drill of having limited continuous-tube apply performance, also are unfavorable for the casing job in later stage.
For this reason, Chinese patent application CN201120156963.2, publication number CN202125247U disclose a kind of all-electric composite continuous tube drilling rig, as shown in Figure 1, comprise drill bit 03 and drive the electro-motor 018 that drill bit 03 rotates, also comprise embedded cable composite continuous tube 02, continuous-tube roller 08, continuous-tube joint 010, measure downhole parameters measuring mechanism 015, change the steering tool 016 of bit heading, well head place in ground is provided with the injection head 01 of clamping composite continuous tube 02.This composite continuous tube 02 is provided with the mud runner, and the mud runner communicates with the nozzle of drill bit 03; Composite continuous tube 02 is wound on the continuous-tube roller 08, and the lower end connects continuous-tube joint 010.Continuous-tube joint 010, measuring mechanism 015, steering tool 016 are connected in series successively with electro-motor 018, also are connected with automatically controlled propeller 014, automatically controlled disconnected take off device 013, downhole communication processor 012, down-hole power transformer 011 between continuous-tube joint 010 and the measuring mechanism 015; The continuous-tube joint 010 interior cable passage that vertically is provided with, composite continuous tube 02 embedded cable passes the cable passage of continuous-tube joint 010.The automatically controlled disconnected logical 013 mistake composite continuous tube of the device 02 embedded cable that takes off is connected with ground power supply 05.Between ground power supply 05 and composite continuous tube 02, also be connected with ground electrical power transformer 07 by cable, between composite continuous tube 02 and measuring mechanism 015, also be connected with down-hole power transformer 011 by cable.On ground, ground monitoring device 04 and ground communications processor 6 are connected by wire.In the down-hole, downhole communication processor 012 and measuring mechanism 15, steering tool 016, automatically controlled disconnected device 013 and the electro-motor 018 of taking off are connected by wire.Ground communications processor 06 is connected with downhole communication processor 012 by composite continuous tube 02 embedded cable.
This all-electric composite continuous tube drilling rig adopts composite continuous tube 02 to realize electric power and the signalling channel foundation of ground and down-hole, although composite continuous tube 02 has the advantages such as corrosion resistance is good, body is light, fatigue life is high, the inner passage is unimpeded, but composite continuous tube 02 also is in the laboratory research stage, technology is still immature, and exists following shortcoming:
(1) composite continuous tube 02 is expensive;
(2) composite continuous tube 02 is few in the application experience of Oil Field;
(3) composite continuous tube 02 shock resistance is low;
(4) most of composite material temperature resistance abilities are lower than 100 C;
(5) composite continuous tube 02 rigidity is lower than the steel continuous-tube, and drilling duty is restricted;
(6) composite continuous tube 02 is in case damage is repaired very difficult.
In addition, this patent adopts cable as the information transfer channel in ground and shaft bottom, and cable is a kind of transmission medium of transmission band relative narrower, and its electrical characteristics and antijamming capability are relatively poor; The electric power of the ground power supply 05 of this drilling rig is through the backward delivered downhole of ground electrical power transformer 07 transformation simultaneously, after down-hole power transformer 011 transformation, flow to again measuring mechanism 015, steering tool 016, automatically controlled propeller 014, automatically controlled disconnected take off device 013 and electro-motor 018 in down-hole power, carry out power transformer 011 in the down-hole and connect trouble, increased workload, and operating personnel have been brought potential safety hazard.
Summary of the invention
Goal of the invention of the present invention is: the above-mentioned deficiency that adopts composite continuous tube for the continuous-tube drilling rig of prior art existence, a kind of well system is provided, this well system adopts common steel continuous-tube, by in continuous-tube, injecting electric power and the information channel that optoelectronic composite cable is set up ground and down-hole, when overcoming the composite continuous tube shortcoming, adopt existing continuous-tube and equipment can realize motorized and the intellectuality of continuous-tube drilling well.
To achieve these goals, the technical solution used in the present invention is:
A kind of well system, the continuous-tube that comprises ground control system and connect described ground control system, be provided with optoelectronic composite cable in the described continuous-tube, described optoelectronic composite cable comprises for the power cable of transmission forceful electric power, is used for the feed cable of transmission light current, the fiber optic cables that are used for transmitting the signal cable of low bandwidth data or control signal and are used for the high-speed bidirectional information channel.
Power cable and feed cable can be underground with forceful electric power and light current introducing respectively, can provide stable supply of electric power for the down-hole lower drilling tool; Fiber optic cables can be set up the high-speed bidirectional signal transmission passage of ground and down-hole, and the optical-fibre communications transfer rate is high, antijamming capability is strong, long transmission distance, can satisfy the large needs of intelligent drilling interactive data information amount; And signal cable is used for transmission low bandwidth data or control signal.
Preferably, but described ground control system comprises the PLC control module, the reel cylinder of described continuous-tube and the injection head of the described continuous-tube of clamping, described cylinder is provided with the ground light electric transducer that connects described optoelectronic composite cable, is connected with rectification adverser, step-up transformer, terrestrial information processing module between described PLC control module, the described cylinder.
Rectification adverser, step-up transformer are arranged on ground, are oppositely arranged on the down-hole, more convenient installation, dismounting, control, simultaneously safer.After being converted to optical signal by electric light, the measured signal of telecommunication of the various sensors of down-hole equipment passes ground back by fiber optic cables, be converted to the signal of telecommunication by the ground opto-electronic conversion in the cylinder again, and enter the terrestrial information processing module after being drawn by cylinder, realize processing and the calculating of signal, realize the Storage and Processing of information through the PLC control module after, be presented at last on the screen of driller control house and understand underground working for the driller personnel; The driller personnel are according to the ground control signal of delivering, after PLC control module, terrestrial information processing module, cylinder and the conversion of ground electric light, through the fiber optic cables in the optoelectronic composite cable signal feedback is transferred to the down-hole, be converted to electric control signal, the execution corresponding actions of control down-hole equipment relevant device.
Preferably, described cylinder is provided with bus ring, thereby can realize the signal accurate transfer of ground and down-hole.
Preferably, this continuous-tube electric intelligent well system also comprises the lower drilling tool that is connected with described continuous-tube end, described lower drilling tool comprises that connector, cable head pipe nipple, remote short section, electronic disconnection and the circulating sub, the drilling parameter that connect are successively measured pipe nipple, direction of deflection is measured pipe nipple, electro-motor, electronic guiding pipe nipple, nearly drill bit measurement pipe nipple and drill bit, and described connector connects described continuous-tube.
Lower drilling tool adopts modularized design, and the rotary type connector is adopted at the inserting tube two ends of adjacent two parts of lower drilling tool, and convenient serial connection connects and dismounting, realizes the connection of electric power and signalling channel.Be provided with flap valve in the cable head pipe nipple, occur mud when preventing drilling well and reflux.
Preferably, be connected with non-rotating joint between described cable head pipe nipple and the described remote short section.
The effect of non-rotating joint is not need to rotate lower drilling tool, cable head pipe nipple and remote short section can be linked together, convenient connection, dismounting.
Preferably, described non-rotating joint comprises top connection and lower contact, and described top connection connects described cable head pipe nipple, and described lower contact connects described remote short section.
Top connection and lower contact cooperatively interact by internal spline, external splines, adapter sleeve and are connected to form non-rotating joint.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
1, this continuous-tube electric intelligent well system adopts common steel continuous-tube, be provided with the optoelectronic composite cable of power cable, feed cable, signal cable, fiber optic cables composition in the continuous-tube, thereby set up electric power and the information channel of ground and down-hole, overcome the shortcoming of composite continuous tube, adopt existing continuous-tube and equipment can realize motorized and the intellectuality of continuous-tube drilling well, can be widely used in the fields such as under balance pressure drilling, old well window sidetracking, cluster well drilling well and directed drilling;
2, this continuous-tube electric intelligent well system is arranged on ground with rectification adverser, step-up transformer, is oppositely arranged on the down-hole, and more convenient installation, dismounting, control are simultaneously safer;
3, lower drilling tool of the present invention adopts modularized design, the rotary type connector is adopted at the inserting tube two ends of each parts of lower drilling tool, when carrying out the connection of parts string spinner, its inner inserting tube is serially connected by the rotary type connector, realize the connection of electric power and signalling channel, modular lower not drilling tool string structure has increased the flexibility that DHA connects, reduce the workload that downhole tool connects, can match corresponding down-hole lower drilling tool according to the operation needs at the scene.
Description of drawings
Fig. 1 is the structural representation of all-electric composite continuous tube drilling rig in the prior art;
Fig. 2 is the structural representation of well system of the present invention;
Fig. 3 is the cross-sectional view of the optoelectronic composite cable among the present invention;
Fig. 4 is the down-hole equipment tool string syndeton schematic diagram among the present invention;
Fig. 5 is the loop control theory schematic diagram of well system of the present invention.
Mark among the figure:
01, injection head, 02, composite continuous tube, 03, drill bit, 04, ground monitoring device, 05, ground power supply, 06, the ground communications processor, 07, ground electrical power transformer, 08, continuous-tube roller, 09, slush pump, 010, continuous-tube joint, 011, the down-hole power transformer, 012, the downhole communication processor, 013, the automatically controlled disconnected device that takes off, 014, automatically controlled propeller, 015, measuring mechanism, 016, steering tool, 017, one way valve, 018, electro-motor;
101, ground control system, 102, lower drilling tool, 1, driller control house, 2, the PLC control module, 3, rectification adverser, 4, the terrestrial information processing module, 5, step-up transformer, 6, the ground light electric transducer, 7, cylinder, 8, injection head, 9, continuous-tube, 10, optoelectronic composite cable, 11, connector, 12, the cable head pipe nipple, 13, non-rotating joint, 131, top connection, 132, lower contact, 14, remote short section, 15, electronic disconnection and circulating sub, 16, drilling parameter is measured pipe nipple, 17, direction of deflection is measured pipe nipple, 18, electro-motor, 19, electronic guiding pipe nipple, 20, nearly drill bit is measured pipe nipple, 21, drill bit, 22, power cable, 23, feed cable, 24, signal cable, 25, fiber optic cables, 26, bus ring.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Shown in Fig. 2,3,4, continuous-tube intelligent electric well system comprises ground control system 101, lower drilling tool 102, and the continuous-tube 9 that connects ground control system 101 and lower drilling tool 102; Wherein be provided with optoelectronic composite cable 10 in the continuous-tube 9, include three-phase power cable 22, feed cable 23, signal cable 24 and fiber optic cables 25 in the optoelectronic composite cable 10, optoelectronic composite cable 10 is with continuous-tube 9 G.I.H together, thereby sets up power and information channel between ground control system 101 and the shaft bottom lower drilling tool 102; Wherein ground control system 101 comprises injection head 8, ground light electric transducer 6, PLC control module 2, cylinder 7, and rectification adverser 3, step-up transformer 5, terrestrial information processing module 4; Wherein lower drilling tool 102 comprises that connector 11, cable head pipe nipple 12, non-rotating joint 13, remote short section 14, electronic disconnection and the circulating sub 15, the drilling parameter that connect are successively measured pipe nipple 16, direction of deflection is measured pipe nipple 17, electro-motor 18, electronic guiding pipe nipple 19, nearly drill bit measurement pipe nipple 20 and drill bit 21.
After the low pressure alternating current passes through above-mentioned rectification adverser 3 and step-up transformer 5; enter in the continuous-tube 9 through the cylinder 7 with bus ring 26; continuous-tube 9 is by injection head 8 G.I.Hs; optoelectronic composite cable 10 is transferred to High Level AC Voltage the lower drilling tool in shaft bottom through three-phase power cable 22; to 18 power supplies of downhole electric motor; drive drill bit 21 rotations; realize motor-driven drilling; can realize the ac variable frequency speed regulation of downhole electric motor 18 is controlled by the rectification adverser 3 on ground, the Parking defencive function of electro-motor 18 can also be set by PLC control module 2.Fiber optic cables 25 in the optoelectronic composite cable 10 are as the signal transmission passage in ground and shaft bottom, the measured signal of telecommunication of the various sensors of down-hole lower drilling tool is undertaken passing ground back by fiber optic cables 25 after electric light is converted to optical signal by remote short section 14, be converted to the signal of telecommunication and after drawing with the cylinder 7 of bus ring, enter terrestrial information processing module 4 by the ground light electric transducer 6 in the cylinder 7 again, realize processing and the calculating of signal, realize through PLC control module 2 being presented at behind the Storage and Processing of information on the screen of driller control house 1 and understand underground working for the driller personnel; Behind the ground control signal process PLC control module 2 that the driller personnel send, terrestrial information processing module 4, the cylinder 7 and ground electrical to optical converter 6 with bus ring 26, transfer to the down-hole through the fiber optic cables 25 in the optoelectronic composite cable 10, carry out opto-electronic conversion through remote short section 14 and revert to electric control signal, actuating equipment relevant under the control well moves.
By connector 11, cable head pipe nipple 12, non-rotating joint 13, remote short section 14, electronic disconnection and circulating sub 15, drilling parameter is measured pipe nipple 16, direction of deflection is measured pipe nipple 17, electro-motor 18, electronic guiding pipe nipple 19, the lower drilling tool 102 that nearly drill bit is measured pipe nipple 20 and drill bit 21 compositions adopts modularized designs, the rotary type connector is adopted at the inserting tube two ends of lower drilling tool 102 each parts, when carrying out the connection of parts string spinner, its inner inserting tube is serially connected by the rotary type connector, the rotary type connector is the existing standard component of realizing lower drilling tool 102 socket connections, thereby realizes the connection of electric power and signalling channel; Modular tool string structure has increased the flexibility that DHA connects, and has reduced the workload that downhole tool connects, and can match corresponding downhole tool according to the operation needs at the scene.The below illustrates respectively with regard to lower drilling tool 102 each component function:
1, the cable head pipe nipple 12, and cable head pipe nipple 12 mainly is for follow-up underground tool string provides machinery and the connection of being connected, and is provided with one in it and disconnects weakness, and cable can be broken herein; Also integrated flap valve is used to prevent the mud backflow in this cable head pipe nipple 12;
2, non-rotating joint 13, non-rotating joint 13 is divided into top connection 131 and lower contact 132, top connection 131 is connected with cable head pipe nipple 12, lower contact 132 is connected with remote short section 14, and top connection 131 and lower contact 132 cooperatively interact by internal spline, external splines, adapter sleeve and be connected to form non-rotating joint 13; The effect of non-rotating joint 13 is exactly after joint with optoelectronic composite cable 10 is connected on the remote short section 14, not need to rotate drilling tool, cable head pipe nipple 12 and remote short section 14 can be linked together by non-rotating joint 13;
3, remote short section 14, signal communication under the remote short section 14 responsible control wells between lower drilling tool 102 and the ground installation, its inside comprises power module, photoelectric conversion module and microprocessor module, remote short section 14 is that fiber optic cables 25 are at the cut off in shaft bottom, the photoelectric conversion module that is provided with in the remote short section 14 is responsible for the conversion between optical signal and the signal of telecommunication; Ground was transmitted go back in unification after the measuring-signal of downhole sensor was processed by remote short section 14, and the control signal that send on ground also is transferred to corresponding downhole tool by remote short section 14;
4, electronic disconnection and circulating sub 15, electronic disconnection and circulating sub 15 are equipped with automatically controlled circulation bypass valve and electronic decoupler, and by signal of telecommunication control, bypass valve can at any time open and close, thereby the flow channel of circulation of fluid is provided, improves the annular space anti-speed; In addition, by realizing the disconnection of electronic disconnection and circulating sub 15 and lower end DHA from the ground transmitted signal, thereby in the situation that bit freezing occurs, realize the recovery of continuous-tube;
5, drilling parameter pipe nipple 16 and direction of deflection are measured pipe nipple 17, for the parameters such as the pressure of the drill, moment of torsion, temperature, pressure, hole deviation, orientation and tool-face at the bottom of the measuring well; Direction of deflection is measured the quick-connecting inertia measurement system that three axis accelerometer and three axle solid-state gyros composition are installed in the pipe nipple 17, this measuring system does not rely on the input of external information, can diamagneticly disturb, can have the accurate measurement that realizes hole deviation and orientation under the geological conditions of magnetic disturbance;
6, electro-motor 18, electro-motor 18 is by three-phase power cable core 22 power supplies of optoelectronic composite cable 10, there is not the shaft bottom reducing gear, rotor by motor directly drives drill bit 21 rotations, the motor-driven drilling motor is driven by AC frequency conversion, rotating speed and the moment of torsion of electro-motor 18 can be accurately controlled, the Parking defencive function of this electro-motor 18 can be set by the PLC control module 2 on ground;
7, electronic guiding pipe nipple 19, electronic guiding pipe nipple 19 is installed in electro-motor 18 lower ends, power to the guiding pipe nipple by the power supply cable core in the photoelectric compound cable, be furnished with three guide vanes on its housing, produce hole deviation and the orientation that corresponding lateral force control drill bit creeps into by the control guide vane backup borehole wall, drill bit is crept into to the direction of appointment; This control mode can obtain more level and smooth well track, helps to reduce the frictional resistance of continuous-tube and the borehole wall, and setting ability and the pressure of the drill of improving continuous-tube apply ability, and provides more excellent wellbore quality for the casing job in later stage.
8, nearly drill bit is measured pipe nipple 20, this nearly drill bit is measured pipe nipple 20 and is connected to the drill bit rear, in order to can measure more accurately position and the attitude of drill bit, and measure the geologic parameters such as natural gamma and formation resistivity, measured parameter is transferred to remote short section by the signal cable in electro-motor 18 housing walls; Measure the measuring-signal that pipe nipple 20 feeds back based on nearly drill bit, electronic guiding pipe nipple 19 can guide drill bit 21 accurate boring to reach the rich accumulation of oil and gas zone automatically, shortened the distance between sensor and the drill bit 21, can realize that geosteering creeps in the thin oil-gas Layer of downhole closed loop control.
This continuous-tube intelligent electric well system has two cover closed-loop control loops, as shown in Figure 5, in the dashed rectangle is the closed-loop control loop that is positioned at the down-hole, in the situation that does not have ground guiding engineer to intervene, according to the measured drilling parameter of DHM-MWD system, trajectory parameters and geologic parameter, downhole control system energy Automatic Optimal drilling parameter, and send control instruction to electro-motor 18 and electronic guiding pipe nipple 19, the guiding well track creeps into along the rich accumulation of oil and gas district, thereby realizes the geologic steering drilling of downhole closed loop control; Another is the control loop between downhole tool and the ground, set up the high-speed bidirectional communication of ground and down-hole by optic fibre core 25, the ground power supply system provides forceful electric power and light current by three-phase power cable core 22 and power supply cable core 23 to various parts and the instrument of down-hole, when well track need to be optimized, ground guiding engineer can send instruction by ground control system, downhole electric motor 18 and electronic guiding pipe nipple 19 are implemented in real time control, thereby the control drill bit creeps into to the direction of appointment.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. well system, the continuous-tube (9) that comprises ground control system (101) and connect described ground control system (101), it is characterized in that, be provided with optoelectronic composite cable (10) in the described continuous-tube (9), described optoelectronic composite cable (10) comprises for the power cable (22) of transmission forceful electric power, is used for the feed cable (23) of transmission light current, the fiber optic cables (25) that are used for transmitting the signal cable (24) of low bandwidth data or control signal and are used for the high-speed bidirectional information channel.
2. a kind of well system according to claim 1, it is characterized in that, described ground control system (101) comprises PLC control module (2), reel described continuous-tube (9) cylinder (7) but and the injection head (8) of the described continuous-tube of clamping (9), described cylinder (7) is provided with the ground light electric transducer (6) that connects described optoelectronic composite cable (10), described PLC control module (2), be connected with rectification adverser (3) between the described cylinder (7), step-up transformer (5), terrestrial information processing module (4).
3. a kind of well system according to claim 2 is characterized in that, described cylinder (7) is provided with bus ring (26).
4. arbitrary described a kind of well system according to claim 1-3, it is characterized in that, also comprise the lower drilling tool (102) that is connected with described continuous-tube (9) end, described lower drilling tool (102) comprises the connector (11) that connects successively, cable head pipe nipple (12), remote short section (14), electronic disconnection and circulating sub (15), drilling parameter is measured pipe nipple (16), direction of deflection is measured pipe nipple (17), electro-motor (18), electronic guiding pipe nipple (19), nearly drill bit is measured pipe nipple (20) and drill bit (21), and described connector (11) connects described continuous-tube (9).
5. a kind of well system according to claim 4 is characterized in that, is connected with non-rotating joint (13) between described cable head pipe nipple (12) and the described remote short section (14).
6. a kind of well system according to claim 5, it is characterized in that, described non-rotating joint (13) comprises top connection (131) and lower contact (132), described top connection (131) connects described cable head pipe nipple (12), and described lower contact (132) connects described remote short section (14).
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|---|---|---|---|
| CN201310336669.3A CN103352656B (en) | 2013-08-05 | 2013-08-05 | A kind of well system |
| PCT/CN2013/088579 WO2015018147A1 (en) | 2013-08-05 | 2013-12-05 | Drilling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310336669.3A CN103352656B (en) | 2013-08-05 | 2013-08-05 | A kind of well system |
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| CN103352656A true CN103352656A (en) | 2013-10-16 |
| CN103352656B CN103352656B (en) | 2015-08-12 |
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| CN201310336669.3A Active CN103352656B (en) | 2013-08-05 | 2013-08-05 | A kind of well system |
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| CN (1) | CN103352656B (en) |
| WO (1) | WO2015018147A1 (en) |
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| CN106014374A (en) * | 2016-07-12 | 2016-10-12 | 中国石油集团长城钻探工程有限公司 | Gyro measurement device for coiled tubing drilling |
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| CN105064934A (en) * | 2015-08-26 | 2015-11-18 | 东营天华石油技术开发有限公司 | Coiled tubing unit capable of achieving up-and-down operation under remote control and operating method thereof |
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| CN109538197A (en) * | 2018-11-01 | 2019-03-29 | 中国石油大学(北京) | Oil and gas reservoir well drilling rail determines method, apparatus and storage medium |
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| CN112145071A (en) * | 2020-08-31 | 2020-12-29 | 中国石油大学(华东) | Efficient intelligent guiding drilling system and drilling method |
| CN112727383A (en) * | 2021-01-15 | 2021-04-30 | 吉林大学 | Ultralow-specific-gravity continuous cable pipe for self-balancing drilling tool system |
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| CN113062726A (en) * | 2021-04-20 | 2021-07-02 | 渝丰科技股份有限公司 | Network nerve cable and directional measurement system for oil and gas well exploitation |
| WO2022222200A1 (en) * | 2021-04-20 | 2022-10-27 | 渝丰科技股份有限公司 | Network neural cable for oil-gas well mining and directional measurement system |
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| CN113107361A (en) * | 2021-05-28 | 2021-07-13 | 山东科技大学 | Coal bed gas guiding well drilling measurement and control device and method thereof |
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| CN113464050A (en) * | 2021-06-24 | 2021-10-01 | 成都理工大学 | Gas drilling method for smart mine and robot system thereof |
| CN113464050B (en) * | 2021-06-24 | 2023-08-08 | 成都理工大学 | Gas drilling method and robot system for intelligent mine |
| CN113719237A (en) * | 2021-08-23 | 2021-11-30 | 中煤科工集团西安研究院有限公司 | Broken soft thin coal seam gas extraction directional long drilling construction drilling tool combination and method |
| CN113719237B (en) * | 2021-08-23 | 2023-10-27 | 中煤科工集团西安研究院有限公司 | Drilling tool assembly and method for directional long drilling construction of gas extraction of crushed soft and thin coal seam |
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| WO2015018147A1 (en) | 2015-02-12 |
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