CN105735954A - Electromagnetic heat-radiation coal bed permeability improvement drill rod device and using method thereof - Google Patents
Electromagnetic heat-radiation coal bed permeability improvement drill rod device and using method thereof Download PDFInfo
- Publication number
- CN105735954A CN105735954A CN201610066856.8A CN201610066856A CN105735954A CN 105735954 A CN105735954 A CN 105735954A CN 201610066856 A CN201610066856 A CN 201610066856A CN 105735954 A CN105735954 A CN 105735954A
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- electromagnetic wave
- coal seam
- electromagnetic
- generating device
- drilling rod
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Classifications
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/2401—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Abstract
The invention provides an electromagnetic heat-radiation coal bed permeability improvement drill rod device and a using method thereof. The electromagnetic heat-radiation coal bed permeability improvement drill rod device comprises a hollow drill rod and at least one electromagnetic wave generation device arranged on the drill rod. Sieve holes are formed in the position, close to the electromagnetic wave generation device, of the drill rod. A water inflow channel and a water outflow channel are formed in the drill rod. The electromagnetic wave generation device comprises a shell. A cathode filament is arranged in the center of the interior of the shell. An anode resonant cavity is formed in the periphery of the cathode filament in a surrounding mode. Electromagnets are arranged at the upper end and the lower end of the anode resonant cavity correspondingly. A waveguide tube is arranged in the middle of the periphery of the anode resonant cavity in a surrounding mode. Cooling cavities are formed in the upper side and the lower side of the waveguide tube. The bottoms of the cooling cavities are connected to the water inflow channel and the water outflow channel. A transmitting hole is formed in the periphery of the anode resonant cavity in the radial direction. One end of the transmitting hole is connected to the anode resonant cavity, and the other end of the transmitting hole penetrates through the waveguide tube and the shell to communicate with the outside. A transmitting antenna is arranged in the transmitting hole. A coal bed is heated through electromagnetic waves emitted by the electromagnetic wave generation device, so that the permeability of the coal bed is improved, and gas extraction is promoted.
Description
Technical field
The present invention relates to mining equiment technical field, particularly relate to a kind of anti-reflection boring rod set in electromagnetic heat radiation coal seam and using method thereof.
Background technology
Coal is the basic energy resource of China, accounts for about the 70% of primary energy composition.Hyposmosis is the basic characteristics of China's coal seam reservoirs, is also one of difficult point hindering China's coal bed gas extraction.China's coal seam permeability is typically in (0.1～0.001) × 10-3μm2Scope, even if the maximum Fushun Coalfield, northeast China of state's intrinsic permeability is also only (0.54～3.8) × 10-3μm2.Gas permeability of coal seam directly decides gas pumping effect, progressively increasing along with China's coal-mine mining depth, mining conditions is increasingly sophisticated, occur in that the coal body feature of high-ground stress, high methane, high anisotropism, hypotonicity, initial fissure and the porosity of coal body taper into, and the breathability in coal seam decreases, and the effective coverage of one borehole is little, pre-draining borehole quantities is big, and extraction efficiency is low.
For improving hyposmosis coal reservoir fracture system and strengthening low permeability coal seam desorption of mash gas-diffusion-percolation flow velocity; lot of domestic and foreign researcher proposes the multiple low permeability coal seam method taken out anti-reflection, short and technological approaches, wherein mainly includes exploitation protective layer, fracturing, hydraulic slotted liner technique, Deephole pre-splitting blasting, N2Foam fracturing, CO2Pressure breaks etc., achieve some effects in the area having, but by the impact of the factors such as execution conditions, engineering material, desorption rate, and anti-reflection, short to take out effect not very good.
Therefore, it is necessary to design the device of a kind of better raising coal seam permeability and extracting result, to solve the problems referred to above.
Summary of the invention
For prior art Problems existing, the present invention provides a kind of increases coal seam permeability, improves the ability of coal seam desorbing gas, promotes the anti-reflection boring rod set in electromagnetic heat radiation coal seam and the using method thereof of gas pumping.
To achieve these goals, the present invention adopts the following technical scheme that
nullThe anti-reflection boring rod set in a kind of electromagnetic heat radiation coal seam，Including the drilling rod of hollow and be located at least one electromagnetic wave generating device on described drilling rod，Described drilling rod is provided with sieve aperture near described electromagnetic wave generating device place，Water flow channel and water flow pass it is provided with in described drilling rod，Described electromagnetic wave generating device includes shell，In described shell, center is provided with cathode filament，Described cathode filament periphery is around being provided with anode cavity，Described anode cavity be respectively arranged at two ends with electric magnet up and down，Around being provided with waveguide in the middle part of the periphery of described anode cavity，The both sides up and down of described waveguide are cooling chamber，The bottom of described cooling chamber is connected to described water flow channel and described water flow pass，Described anode cavity periphery radially offers launch hole，One end of described launch hole is connected to described anode cavity，The other end is in communication with the outside through described waveguide and described shell，It is provided with transmitting antenna in described launch hole.
Further, one end of described drilling rod is provided with drill bit, is provided with screw thread in described drill bit, and described electromagnetic wave generating device is bolted on described drill bit by described screw thread.
Further, described electromagnetic wave generating device is provided with multiple, is respectively arranged on multiple positions of described drilling rod.
Further, described electric magnet includes multiple iron core around arranging, and described its outer diameter is wound with solenoid.
Further, described launch hole is filled by filled media with extraneous junction, and the electromagnetic wave that described filled media can be sent by described antenna passes.
Further, the bottom of described electromagnetic wave generating device is provided with temperature sensor, and described temperature sensor is connected to cable bus, and described cable bus is connected to the control system of described anode cavity, described cathode filament, described electric magnet and described drilling rod end.
Further, described anode cavity is sector space, and described sector space is surrounded cylinder by two circular copper sheets, and cylinder described in multiple copper sheet even partition is formed.
Further, described cooling chamber connects in the top of described waveguide, be separated to form the first cooling chamber and the second cooling chamber in the lower section of described waveguide, the lower end of described first cooling chamber is connected to described water flow channel, and the lower end of described second cooling chamber is connected to described water flow pass.
A kind of using method based on the anti-reflection boring rod set in above-mentioned electromagnetic heat radiation coal seam, including:
Step one: in treating the anti-reflection heading with gas pumping in coal seam, described drilling rod and described electromagnetic wave generating device are crept into the target location holed in coal seam first；
Step 2: seal the space around described drilling rod in described first boring；
Step 3: connect control system and gas drainage system, controls described electromagnetic wave generating device by described control system and launches electromagnetic wave, utilizes electromagnetic wave to heat described coal seam to uniform temperature, carries out gas pumping by described drilling rod and described sieve aperture simultaneously.
Further, between step 2 and step 3, around described first boring, offer multiple second boring for common gas pumping.
Beneficial effects of the present invention:
Arranging electromagnetic wave generating device on drilling rod, launch electromagnetic wave by electromagnetic wave generating device, make coal temperature raise, whole temperature-rise period is inside coal body, and the transmission of programming rate specific heat and thermal convection current are fast, and penetration capacity is strong, easy to control；In coal temperature elevation process, coal body dehydration shrinkage, coal body granule can be made internal and cracking between granule, simultaneously electromagnetic field of high frequency to the driving frequency of polar molecule close with molecule natural frequency in coal body time, resonance can be produced, coal body will produce microcrack, thus increasing the permeability in coal seam；And coal temperature raises and is conducive to the desorption of mash gas of coal body internal adsorption state to become free state, promote gas pumping, it is achieved drill in coal seam, coal seam is anti-reflection, gas pumping is integrated.
Accompanying drawing explanation
Fig. 1 is the structural representation of the anti-reflection boring rod set in electromagnetic heat radiation coal seam of the present invention；
Fig. 2 is the sectional view of A-A in Fig. 1；
Fig. 3 is the sectional view of B-B in Fig. 1；
The coal bed drilling that Fig. 4 is the anti-reflection boring rod set in electromagnetic heat radiation coal seam of the present invention arranges schematic diagram；
In figure, 1 drill bit, 2 shells, 3 anode cavities, 4 cathode filaments, 5 iron cores, 6 solenoid, 7 filled medias, 8 launch holes, 9 transmitting antennas, 10 waveguides, 11 cooling chambers, 12 first cooling chambers, 13 second cooling chambers, 14 cable buses, 15 temperature sensors, 16 sieve apertures, 17 drilling rods, 18 gas flow meters, 19 control system, 20 gas drainage systems, 21 coal seams, 22 first borings, 23 second borings, 24 water flow channels, 25 water flow pass.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Need explanation, directional instruction in the embodiment of the present invention (such as up, down, left, right, before and after ...) is only for explaining relative position relation between each parts, motion conditions etc. under a certain particular pose (as shown in drawings), if this particular pose changes, then directionality instruction also correspondingly changes therewith.
It addition, relate to the description of " first ", " second " etc. in the present invention only for descriptive purposes, and it is not intended that instruction or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.Additionally; technical scheme between each embodiment can be combined with each other; but must be based on those of ordinary skill in the art are capable of; when technical scheme combination occur conflicting maybe cannot realize time will be understood that the combination of this technical scheme is absent from, also not within the protection domain of application claims.
Such as Fig. 1, the present invention provides a kind of electromagnetic heat radiation coal seam anti-reflection boring rod set, including the drilling rod 17 of hollow and be located at least one electromagnetic wave generating device on drilling rod 17, one end of drilling rod 17 is provided with drill bit 1, the other end is connected to and is provided with the parts being connected with rig and gas drainage system 20, is provided with gas flow meter 18 between gas drainage system 20 and drilling rod 17.In the present embodiment, electromagnetic wave generating device is provided with one, being positioned at one end of drill bit 1, be provided with screw thread in drill bit 1, electromagnetic wave generating device is bolted on drill bit 1 by this screw thread, in other embodiments, electromagnetic wave generating device can have multiple, is respectively arranged on multiple positions of drilling rod 17, when coal seam thickness is thicker, electromagnetic wave generating device, zone heating can be set at multiple different-thickness places.Drilling rod 17 is provided with sieve aperture 16 near electromagnetic wave generating device place, for for gas drainage system 20 mash gas extraction, being provided with water flow channel 24 and water flow pass 25, for cooling water inlet and outlet electromagnetic wave generating device in drilling rod 17.
Such as Fig. 1 to Fig. 3, electromagnetic wave generating device includes shell 2, and in shell 2, center is provided with cathode filament 4, and in the present embodiment, cathode filament 4 is short and thick, adopts tungsten filament to make.Cathode filament 4 is peripheral around being provided with anode cavity 3, and anode cavity 3 adopts two concentric but that diameter is different circular copper sheets to surround cylinder, is evenly divided into 12 sector spaces with copper sheet in the middle of cylinder, and each sector space is an anode cavity 3.Anode cavity 3 be respectively arranged at two ends with electric magnet up and down, electric magnet includes multiple iron core 5 around arranging, iron core 5 periphery is wound with solenoid 6, in the present embodiment, the electric magnet totally 12 that iron core 5 is constituted with solenoid 6, each 6 of anode cavity about 3 two ends, each magnet spool number of turn is identical with winding method.Around being provided with waveguide 10 in the middle part of the periphery of anode cavity 3, the both sides up and down of waveguide 10 are cooling chamber 11, the bottom of cooling chamber 11 is connected to water flow channel 24 and water flow pass 25, particularly, cooling chamber 11 connects in the top of waveguide 10, the copper sheet that passes under in waveguide 10 is separated to form the first cooling chamber 12 and the second cooling chamber 13, and the lower end of the first cooling chamber 12 is connected to water flow channel 24, and the lower end of the second cooling chamber 13 is connected to water flow pass 25.Anode cavity 3 periphery radially offers launch hole 8, one end of launch hole 8 is connected to anode cavity 3, the other end is in communication with the outside through waveguide 10 and shell 2, transmitting antenna 9 it is provided with in launch hole 8, launch hole 8 is filled by filled media 7 with extraneous junction, it is possible to prevent ickings from entering electromagnetic wave generating device, and filled media 7 must be not electromagnetic wave absorption energy, and electromagnetic wave can be supplied to penetrate, therefore in the present embodiment, filled media 7 is high-temperature resistance plastice or ceramic or glass.The bottom of electromagnetic wave generating device is provided with temperature sensor 15, temperature sensor 15 is connected to cable bus 14, anode cavity 3, cathode filament 4, electric magnet are connected by cable bus 14 with the control system 19 of drilling rod 17 end, control electromagnetic wave generating device thereby through control system 19 and launch electromagnetic wave.
The present invention arranges electromagnetic wave generating device on drilling rod 17, electromagnetic wave is launched by electromagnetic wave generating device, cause rotation and the migration of hydrone isopolarity molecule in coal body, when wave frequency is increased to after to a certain degree, molecular dipole high speed rotating, mutually collide between polar molecule, rub and raw heat, making coal temperature raise, whole temperature-rise period is inside coal body, and the transmission of programming rate specific heat and thermal convection current are fast, penetration capacity is strong, easy to control.In coal temperature elevation process, coal body dehydration shrinkage, coal body granule can be made internal and cracking between granule；It addition, electromagnetic field of high frequency to the driving frequency of polar molecule close with molecule natural frequency in coal body time, resonance can be produced, coal body will produce microcrack, thus increasing the permeability in coal seam；Meanwhile, coal temperature raises and is conducive to the desorption of mash gas of coal body internal adsorption state to become free state, promotes gas pumping, it is achieved drill in coal seam, gas pumping, coal seam is anti-reflection, gas is short takes out integration.
Such as Fig. 1 and Fig. 4, the using method of the anti-reflection boring rod set in above-mentioned electromagnetic heat radiation coal seam comprises the steps:
Step one: treating that coal seam is anti-reflection and in the tunnel, coal seam 21 of gas pumping, utilizes rig that drilling rod 17 and electromagnetic wave generating device creep into the target location of the first boring 22 in coal seam 21, then unloads rig；
Step 2: seal the space around drilling rod 17 in the first boring 22, in the present embodiment, is infused in polyurethane in the space around the drilling rod 17 from rib about 0.8～1.5m position, until sealing the first boring 22 completely；
Step 3: connect control system 19 and gas drainage system 20, controls electromagnetic wave generating device by control system 19 and launches electromagnetic wave, utilizes electromagnetic wave by coal seam heating to uniform temperature, and hollow hole and sieve aperture 16 by drilling rod 17 carry out gas pumping simultaneously.In the present embodiment, the wave frequency that electromagnetic wave generating device is launched is 2450MHz, heats coal seam to 150～200 DEG C, utilizes gas drainage system 20 to carry out gas pumping at drilling rod 17 end.
Further, in order to improve gas pumping efficiency, expand extraction scope, coal seam 21 is offered multiple second boring 23 for common gas pumping around first boring 22.Owing to being provided with electromagnetic wave generating device heating coal seam 21 in the first boring 22, coal seam 21 in radius about can there be is impact, therefore the coal body permeability around the second boring 23 can be increased, it is preferred that appropriate semicoke, water etc. are injected in the second boring 23 and inhales ripple medium, timely sealing of hole and be connected into gas drainage system 20, carry out gas pumping, add that coal seam is anti-reflection and gas is short takes out effect, expand extraction scope, improve extraction efficiency, and common extraction also can reduce cost to a certain extent.Second boring 23 and the first boring 22 are crisscross arranged so that the electromagnetic wave generating device in the first boring 22 can affect the coal seam around the second boring 23, promotes extraction.
The present invention utilizes electromagnetic wave generating device that coal seam is heated, and improves the permeability in coal seam, and coal temperature raises and is conducive to the desorption of mash gas of coal body internal adsorption state to become free state, promotes gas pumping, it is achieved drill in coal seam, coal seam is anti-reflection, gas pumping is integrated.
Above example is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to preferred embodiment, skilled artisan would appreciate that, technical scheme can be modified or equivalent replacement, without deviating from objective and the scope of the technical program, it all should be encompassed in scope of the presently claimed invention.
Claims (10)
- null1. the anti-reflection boring rod set in electromagnetic heat radiation coal seam，It is characterized in that，Including the drilling rod of: hollow and be located at least one electromagnetic wave generating device on described drilling rod，Described drilling rod is provided with sieve aperture near described electromagnetic wave generating device place，Water flow channel and water flow pass it is provided with in described drilling rod，Described electromagnetic wave generating device includes shell，In described shell, center is provided with cathode filament，Described cathode filament periphery is around being provided with anode cavity，Described anode cavity be respectively arranged at two ends with electric magnet up and down，Around being provided with waveguide in the middle part of the periphery of described anode cavity，The both sides up and down of described waveguide are cooling chamber，The bottom of described cooling chamber is connected to described water flow channel and described water flow pass，Described anode cavity periphery radially offers launch hole，One end of described launch hole is connected to described anode cavity，The other end is in communication with the outside through described waveguide and described shell，It is provided with transmitting antenna in described launch hole.
- 2. the anti-reflection boring rod set in electromagnetic heat radiation coal seam according to claim 1, it is characterised in that: one end of described drilling rod is provided with drill bit, is provided with screw thread in described drill bit, and described electromagnetic wave generating device is bolted on described drill bit by described screw thread.
- 3. the anti-reflection boring rod set in electromagnetic heat radiation coal seam according to claim 1, it is characterised in that: described electromagnetic wave generating device is provided with multiple, is respectively arranged on multiple positions of described drilling rod.
- 4. the anti-reflection boring rod set in electromagnetic heat radiation coal seam according to claim 1, it is characterised in that: described electric magnet includes multiple iron core around arranging, and described its outer diameter is wound with solenoid.
- 5. the anti-reflection boring rod set in electromagnetic heat radiation coal seam according to claim 1, it is characterised in that: described launch hole is filled by filled media with extraneous junction, and the electromagnetic wave that described filled media can be sent by described antenna passes.
- 6. the anti-reflection boring rod set in electromagnetic heat radiation coal seam according to claim 1, it is characterized in that: the bottom of described electromagnetic wave generating device is provided with temperature sensor, described temperature sensor is connected to cable bus, and described cable bus is connected to the control system of described anode cavity, described cathode filament, described electric magnet and described drilling rod end.
- 7. the anti-reflection boring rod set in electromagnetic heat radiation coal seam according to claim 1, it is characterised in that: described anode cavity is sector space, and described sector space is surrounded cylinder by two circular copper sheets, and cylinder described in multiple copper sheet even partition is formed.
- 8. the anti-reflection boring rod set in electromagnetic heat radiation coal seam according to claim 1, it is characterized in that: described cooling chamber connects in the top of described waveguide, the first cooling chamber and the second cooling chamber it is separated to form in the lower section of described waveguide, the lower end of described first cooling chamber is connected to described water flow channel, and the lower end of described second cooling chamber is connected to described water flow pass.
- 9. the using method based on the anti-reflection boring rod set in electromagnetic heat radiation coal seam described in claim 1, it is characterised in that including:Step one: in treating the anti-reflection heading with gas pumping in coal seam, described drilling rod and described electromagnetic wave generating device are crept into the target location holed in coal seam first；Step 2: seal the space around described drilling rod in described first boring；Step 3: connect control system and gas drainage system, controls described electromagnetic wave generating device by described control system and launches electromagnetic wave, utilizes electromagnetic wave to heat described coal seam to uniform temperature, carries out gas pumping by described drilling rod and described sieve aperture simultaneously.
- 10. using method according to claim 9, it is characterised in that: between step 2 and step 3, around described first boring, offer multiple second boring for common gas pumping.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610066856.8A CN105735954B (en) | 2016-01-29 | 2016-01-29 | A kind of electromagnetic heat radiation coal seam is anti-reflection boring rod set and its application method |
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| CN201610066856.8A CN105735954B (en) | 2016-01-29 | 2016-01-29 | A kind of electromagnetic heat radiation coal seam is anti-reflection boring rod set and its application method |
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| CN105735954B CN105735954B (en) | 2018-04-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168119A (en) * | 2016-08-15 | 2016-11-30 | 中国石油天然气股份有限公司 | Downhole electric heating horizontal production well tubular column structure |
| CN106223916A (en) * | 2016-10-14 | 2016-12-14 | 中国地质大学（北京） | Resistance wire type coal seam heater |
| CN107313798A (en) * | 2017-08-09 | 2017-11-03 | 陕西理工大学 | Resonant mode coal mine gas drainage device |
| CN107476786A (en) * | 2017-10-17 | 2017-12-15 | 辽宁工程技术大学 | A kind of ultrasonic wave and the coal bed gas pumping method of Far-infrared Heating synergy |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2295849Y (en) * | 1997-04-23 | 1998-10-28 | 马桂芳 | Electric heater for underwell sucker rod |
| US20090114384A1 (en) * | 2005-12-20 | 2009-05-07 | Schlumberger Technology Corporation | Method for extraction of hydrocarbon fuels or contaminants using electrical energy and critical fluids |
| WO2010023519A1 (en) * | 2008-08-26 | 2010-03-04 | Total S.A. | Method for the in situ high frequency heat extraction of hydrocarbons from an underground formation |
| CN103114871A (en) * | 2013-03-04 | 2013-05-22 | 刘永杰 | Extraction device and method utilizing microwave coal heating layer |
| CN103696746A (en) * | 2013-12-25 | 2014-04-02 | 辽宁工程技术大学 | Microwave excitation coal-bed gas desorption and seepage experimental device |
| CN203961781U (en) * | 2014-06-04 | 2014-11-26 | 中国石油集团长城钻探工程有限公司 | The drilling tool of a kind of down-hole microwave auxiliary rock |
-
2016
- 2016-01-29 CN CN201610066856.8A patent/CN105735954B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2295849Y (en) * | 1997-04-23 | 1998-10-28 | 马桂芳 | Electric heater for underwell sucker rod |
| US20090114384A1 (en) * | 2005-12-20 | 2009-05-07 | Schlumberger Technology Corporation | Method for extraction of hydrocarbon fuels or contaminants using electrical energy and critical fluids |
| WO2010023519A1 (en) * | 2008-08-26 | 2010-03-04 | Total S.A. | Method for the in situ high frequency heat extraction of hydrocarbons from an underground formation |
| CN103114871A (en) * | 2013-03-04 | 2013-05-22 | 刘永杰 | Extraction device and method utilizing microwave coal heating layer |
| CN103696746A (en) * | 2013-12-25 | 2014-04-02 | 辽宁工程技术大学 | Microwave excitation coal-bed gas desorption and seepage experimental device |
| CN203961781U (en) * | 2014-06-04 | 2014-11-26 | 中国石油集团长城钻探工程有限公司 | The drilling tool of a kind of down-hole microwave auxiliary rock |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168119A (en) * | 2016-08-15 | 2016-11-30 | 中国石油天然气股份有限公司 | Downhole electric heating horizontal production well tubular column structure |
| CN106223916A (en) * | 2016-10-14 | 2016-12-14 | 中国地质大学（北京） | Resistance wire type coal seam heater |
| CN107313798A (en) * | 2017-08-09 | 2017-11-03 | 陕西理工大学 | Resonant mode coal mine gas drainage device |
| CN107476786A (en) * | 2017-10-17 | 2017-12-15 | 辽宁工程技术大学 | A kind of ultrasonic wave and the coal bed gas pumping method of Far-infrared Heating synergy |
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| CN105735954B (en) | 2018-04-27 |
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Inventor after: Luo Mingkun Inventor after: Li Sheng Inventor after: Fan Chaojun Inventor after: Bai Jing Inventor after: Bi Huijie Inventor after: Yang Zhenhua Inventor after: Zhang Haohao Inventor before: Li Sheng Inventor before: Luo Mingkun Inventor before: Fan Chaojun Inventor before: Bai Jing Inventor before: Bi Huijie Inventor before: Yang Zhenhua Inventor before: Zhang Haohao |
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Granted publication date: 20180427 Termination date: 20210129 |