CN106321025A - Coal and oil gas green coordination exploiting system and application method thereof - Google Patents
Coal and oil gas green coordination exploiting system and application method thereof Download PDFInfo
- Publication number
- CN106321025A CN106321025A CN201610969268.5A CN201610969268A CN106321025A CN 106321025 A CN106321025 A CN 106321025A CN 201610969268 A CN201610969268 A CN 201610969268A CN 106321025 A CN106321025 A CN 106321025A
- Authority
- CN
- China
- Prior art keywords
- coal
- oil gas
- oil
- gas
- corridor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
Abstract
The invention discloses a coal and oil gas green coordination exploiting system and an application method thereof. The coal and oil gas green coordination exploiting system comprises a coordination mechanism, a coal mining mechanism and an oil gas extraction mechanism. The coordination mechanism is provided with an oil gas corridor, a coal face, an overlying strata sunken funnel and an oil gas loose circle. The coal mining mechanism is provided with a coal mining machine, a hydraulic support and a scraper conveyer. The oil gas extraction mechanism is provided with an air extraction main drill hole, an air extraction branch pipe, an oil pumping main drill hole and an oil pumping branch pipe. According to the requirements, first the orientation dimension of the coordination mechanism and a corresponding sinking water retention mining process are determined, the air extraction main drill hole and the air extraction branch pipe are utilized to extract coal bed gas in a coal seam through the oil gas corridor, the coal mining mechanism is utilized to stope the coal seam, top and base plate oil gas loose circles generated along with the rear of the coal face promote resolving and dissociation of oil gas resources on the upper portion and the lower portion of the coal seam; the oil gas extraction mechanism extracts oil gas at different layers and different levels; after the oil gas extraction is performed, the air extraction branch pipe and the oil pumping branch pipe are removed, the oil gas corridor is recycled by utilizing the coal mining mechanism, and the objective of coal and oil gas green coordination exploiting is achieved.
Description
Technical field
The present invention relates to resource exploitation field, particularly relate to a kind of coal and oil gas green harmonic extraction system and described
Systematic difference method.
Background technology
As a example by Ordos Basin, the main coal accumulating basin of China is composed and is deposited abundant coal resources, has coal bed gas, sand simultaneously
The rational exploitation and utilization of the fossil resources such as rock gas, oil association feature, coal and oil gas altogether is to ensureing Chinese energy safety, improving energy
Source structure, realize environmental friendliness sustainable development and be significant.Present stage kerosene oil-gas multiple resource coordinated development is not yet formed
Unified system, coal and oil-gas mining face problems, and coal seam is first adopted, and can form overlying unstable formation, causes oil gas to hole
Constructional difficulties, goaf cannot be exploited petroleum resources, and with there is severe circulation loss, be ultimately caused security incident and causing oil gas to provide
Source is wasted；Oil gas is first adopted, and the ground subsidence supervened during seam mining can cause oil gas extraction well bad break to destroy, pipe network oil gas
Reveal and blast, if forbidding coal mining, or stay and set roomy barrier pillar, then can cause coal resources waste.Based on above-mentioned feelings
Condition, especially under kerosene oil-gas longitudinal stack occurrence condition, is badly in need of a kind of coal and oil gas green harmonic extraction system, to reach
Coal and oil gas coordinated development, improve resource recovery, reduces table ecology and water and soil resources disturbance, it is ensured that the national green energy supplies
The purpose given.
Summary of the invention
The purpose of the embodiment of the present invention is to propose a kind of coal and oil gas green harmonic extraction system, the most true
Determine coordination organization's azimuth dimension and the heavy water-retaining production technique of corresponding fall, utilize main borehole of bleeding, suction branch by oil gas corridor
Coal bed gas in extraction coal seam, then utilizes coal mining mechanism back production coal seam, the roof and floor oil gas that coal-face rear is supervened
It is free that relaxation zone promotes that top and the bottom, coal seam petroleum resourceses resolves, and different layers position difference grade oil gas is taken out by oil gas extraction mechanism
Adopt, treat that oil gas extraction is complete, remove suction branch, oil pumping arm utilize coal mining mechanism back production oil gas corridor, at coal mining mechanism, oil
Gas extraction mechanism and coordination organization realize the purpose of coal and oil gas green harmonic extraction under efficiently coordinating.For achieving the above object,
The present invention adopts the following technical scheme that
A kind of coal and oil gas green harmonic extraction system, including:
Harmonic extraction mechanism, including oil gas corridor, overlying strata depression funnel, oil gas relaxation zone, coal-face, described oil gas
Corridor is placed in coal-face both sides, and described overlying strata depression funnel is positioned at above coal-face, and described oil gas relaxation zone is positioned at
Coal-face top and the bottom.
Coal mining mechanism, including coal-winning machine, hydraulic support, drag conveyor, described coal-winning machine, hydraulic support and scraper plate conveying
Machine is arranged in parallel with described coal-face, and coal-winning machine is placed in hydraulic support bottom and described drag conveyor top, described
Drag conveyor afterbody is connected with hydraulic support bottom；
Oil-gas mining mechanism, including main borehole of bleeding, suction branch, oil pumping main borehole, oil pumping arm, described in bleed main brill
Hole, oil pumping main borehole are placed in the middle part of oil gas corridor and arranged crosswise, and suction branch, oil pumping arm are respectively placed in corresponding Oil And Gas Occurrence
Bleed in coal rock layer and described in passing through main borehole, oil pumping main borehole is connected with ground installation.
Preferably, described oil gas corridor is placed between coal-face, and its size is leaked by overlying strata depression under the conditions of concrete geology
Bucket scope combines associated safety exploitation code and oil-gas mining demand determines.
Preferably, described in main borehole of bleeding be placed in the middle part of oil gas corridor, inside is equipped with different gas-bearing formation position of composing respectively and bleeds
Pipe.
Preferably, described oil pumping main borehole is placed in oil gas corridor, and inside is equipped with different tax oil reservoir position oil pumping arm respectively.
Preferably, during described oil gas relaxation zone is positioned at Oil And Gas Occurrence rock stratum, coal-face top and the bottom.
The invention allows for a kind of coal and oil gas green harmonic extraction system application method, apply said system, its bag
Include following job step:
A, according to coal and petroleum resources hosting geological condition and relevant policies regulation, determine overlying strata depression funnel size, oil
Make corridor and coal-face dimension scale and distribution orientation leave with rage；
B, determine oil pumping main borehole, main borehole density of bleeding, boring size and the degree of depth according to coal and petroleum resources demand, and
Determine coal-face size；
C, lay in oil gas extraction mechanism's back production coal seam petroleum resources in coal bed gas and sandstone；
D, laying coal mining mechanism, back production coal seam, utilize suction branch and oil pumping arm back production different layers position difference product simultaneously
Position gas and oil resource；
E, treat that petroleum resources back production is complete, remove suction branch, oil pumping arm in time, utilize coal mining mechanism back production oil gas to walk
Coal seam, corridor；
F, coal resources back production are complete, remove coal-winning machine, drag conveyor and hydraulic support；
G, move to subsequent work and repeat step a-f, and during step c-f, take advanced petroleum vapor recovery technique, and special
Water conservation under the conditions of Shu subtracts heavy coal winning technology, reduces coal, oil, gas exploitation to earth's surface ecology and subsoil water, soil resource disturbance destruction.
Compared with existing single exploitation of mineral resources system, present invention have the advantage that
The coal that the present invention addresses and oil gas harmonic extraction system, have coordination organization, coal mining mechanism and oil-gas mining mechanism,
First determine coordination organization's azimuth dimension and the heavy water-retaining production technique of corresponding fall, utilize main borehole of bleeding, take out
Gas branch pipe is by coal bed gas in extraction coal seam, oil gas corridor, it is ensured that safely mining of coalbed, then utilizes coal mining mechanism back production coal seam,
It is free that the roof and floor oil gas relaxation zone that coal-face rear is supervened promotes that top and the bottom, coal seam petroleum resources resolves, and will bleed
Arm, oil pumping arm are placed in kerosene relaxation zone by main borehole of bleeding, oil pumping main borehole, and then are realized oil gas extraction machine respectively
Structure carries out extraction to different layers position different cultivars oil gas, treats that oil gas extraction is complete, in conjunction with main borehole and the oil pumping main borehole spy of bleeding
Bright oil gas corridor geologic information, utilizes coal mining mechanism recovered oil to make corridor leave with rage, is finally reached a hole multiplex, it is achieved coal is green with oil gas
The purpose of color coordinated development.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of the present invention；
Fig. 2 is A-A profile in Fig. 1 in the present invention；
Fig. 3 is B-B profile in Fig. 1 in the present invention；
Fig. 4 is that many coal-faces of the present invention adopt design sketch altogether；
Fig. 5 is the back production oil gas corridor figure of the present invention.
In figure: 1-coal-winning machine；2-hydraulic support；3-drag conveyor；4-bleeds main borehole；5-suction branch；6-pumps
Main borehole；7-pumps arm；8-oil gas corridor；9-coal-face；10-overlying strata depression funnel；11-oil gas relaxation zone.
Detailed description of the invention
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of coal and oil gas green harmonic extraction system, including coordination organization, adopt
Coal mechanism, oil gas extraction mechanism, coal mining mechanism is used for seam mining, and oil gas extraction mechanism is ensureing the safe and efficient back production in coal seam bar
Compose the petroleum resources depositing layer position under part for extraction difference, coordination organization is used for coordinating coal and exploits with petroleum resources.
In harmonic extraction mechanism, described oil gas corridor 8 is placed in coal-face 9 both sides, 10, described overlying strata depression funnel
Above coal-face 9, described oil gas relaxation zone 11 is positioned at coal-face 9 top and the bottom.
In coal mining mechanism, described coal-winning machine 1, hydraulic support 2 and drag conveyor 3 and the described parallel cloth of coal-face 9
Put, and coal-winning machine 1 is placed in hydraulic support 2 bottom and described drag conveyor 3 top, described drag conveyor 3 afterbody and hydraulic pressure
Support 2 bottom connects；
In oil-gas mining mechanism, described in bleed main borehole 4, oil pumping main borehole 6 be placed in the middle part of oil gas corridor 8 and intersect cloth
Putting, suction branch 5, oil pumping arm 7 are respectively placed in corresponding Oil And Gas Occurrence coal rock layer and bleed described in passing through main borehole 4, oil pumping
Main borehole 6 is connected with ground installation.
Shown in Fig. 1, first determine coordination organization's azimuth dimension and the heavy water-retaining production technique of corresponding fall, profit
With main borehole 4 of bleeding, suction branch 5 by coal bed gas in extraction coal seam, oil gas corridor 8, then utilize coal mining mechanism back production coal
Layer, it is free that the roof and floor oil gas relaxation zone 11 that coal-face 9 rear is supervened promotes that top and the bottom, coal seam petroleum resources resolves,
Finally oil gas extraction mechanism carries out extraction to different layers position difference grade oil gas, treats that oil gas extraction is complete, utilizes coal mining mechanism to return
Receive coal seam in oil gas corridor 8.
Its applying step approximately as:
A, according to coal and petroleum resources hosting geological condition and relevant policies regulation, determine overlying strata depression funnel 10 size,
Oil gas corridor 8 and coal-face 9 dimension scale and distribution orientation；
B, determine oil pumping main borehole 6, main borehole 4 density of bleeding, boring size and the degree of depth according to coal and petroleum resources demand,
And determine coal-face 9 size；
C, lay in oil gas extraction mechanism's back production coal seam petroleum resources in coal bed gas and sandstone；
D, laying coal mining mechanism, back production coal seam, utilize suction branch 5, oil pumping arm 7 back production back production different layers position not simultaneously
With grade gas and oil resource；
E, treat that petroleum resources back production is complete, remove suction branch 5, oil pumping arm 7 in time, utilize coal mining mechanism back production oil gas
Coal seam, corridor 8；
F, coal resources back production are complete, remove coal-winning machine 1, drag conveyor 3 and hydraulic support 2；
G, move to subsequent work and repeat step a-f, and during step c-f, take advanced petroleum vapor recovery technique, and special
Water conservation under the conditions of Shu subtracts heavy coal winning technology, reduces coal, oil, gas exploitation to earth's surface ecology and subsoil water, soil resource disturbance destruction.
Certainly, only presently preferred embodiments of the present invention described above, the present invention is not limited to enumerate above-described embodiment, should
When explanation, any those of ordinary skill in the art are under the teaching of this specification, all equivalents of being made, bright
Aobvious variant, within all falling within the essential scope of this specification, ought to be protected by the present invention.
Claims (6)
1. a coal and oil gas green harmonic extraction system, it is characterised in that: described coal and oil gas green harmonic extraction system bag
Include:
Harmonic extraction mechanism: include oil gas corridor, overlying strata depression funnel, oil gas relaxation zone, coal-face, described oil gas corridor
Being placed in coal-face both sides, described overlying strata depression funnel is positioned at above coal-face, and described oil gas relaxation zone is positioned at coal mining
Work surface top and the bottom.
Coal mining mechanism: include coal-winning machine, hydraulic support, drag conveyor, described coal-winning machine, hydraulic support and drag conveyor with
Described coal-face is arranged in parallel, and coal-winning machine is placed in hydraulic support bottom and described drag conveyor top, described scraper plate
Conveyer afterbody is connected with hydraulic support bottom；
Oil-gas mining mechanism: the main borehole that includes bleeding, suction branch, oil pumping main borehole, oil pumping arm, described in bleed main borehole,
Oil pumping main borehole is placed in the middle part of oil gas corridor and arranged crosswise, and suction branch, oil pumping arm are respectively placed in corresponding gas, oil is composed and deposited coal
Bleed in rock stratum and described in passing through main borehole, oil pumping main borehole is connected with ground installation.
Coal the most according to claim 1 and oil gas green harmonic extraction system, it is characterised in that: described oil gas corridor is placed in
Between coal-face, its size is combined associated safety exploitation code and oil gas by overlying strata depression funnel scope under the conditions of concrete geology
Mining requirement determines.
Coal the most according to claim 1 and oil gas green harmonic extraction system, it is characterised in that main borehole of bleeding described in: is put
In the middle part of oil gas corridor, inside is equipped with different tax gas-bearing formation positions suction branch respectively.
Coal the most according to claim 1 and oil gas green harmonic extraction system, it is characterised in that: described oil pumping main borehole is put
In oil gas corridor, inside is equipped with different tax oil reservoir position oil pumping arm respectively.
Coal the most according to claim 1 and oil gas green harmonic extraction system, it is characterised in that: described oil gas relaxation zone position
In Oil And Gas Occurrence rock stratum, coal-face top and the bottom.
6. a coal and oil gas green coordinated development system application method, it is characterised in that use as arbitrary in claim 1 to 5
Coal described in Xiang and oil gas green coordinated development system, comprise the steps:
A, according to coal and petroleum resources hosting geological condition and relevant policies regulation, determine that overlying strata depression funnel size, oil gas are walked
Corridor and coal-face dimension scale and distribution orientation；
B, determine oil pumping main borehole, main borehole density of bleeding, boring size and the degree of depth according to coal and petroleum resources demand, and determine
Coal-face size；
C, lay in oil gas extraction mechanism's back production coal seam petroleum resources in coal bed gas and sandstone；
D, lay coal mining mechanism, back production coal seam, utilize simultaneously suction branch and oil pumping arm back production different layers position difference grade gas,
Oil resource；
E, treat that petroleum resources back production is complete, remove suction branch, oil pumping arm in time, utilize coal mining mechanism back production oil gas corridor coal
Layer；
F, coal resources back production are complete, remove coal-winning machine, drag conveyor and hydraulic support；
G, move to subsequent work and repeat step a-f, and during step c-f, take advanced petroleum vapor recovery technique, and special bar
Water conservation under part subtracts heavy coal winning technology, reduces coal, oil, gas exploitation to earth's surface ecology and subsoil water, soil resource disturbance destruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610969268.5A CN106321025B (en) | 2016-10-28 | 2016-10-28 | A kind of coal and the green harmonic extraction system of oil gas and application process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610969268.5A CN106321025B (en) | 2016-10-28 | 2016-10-28 | A kind of coal and the green harmonic extraction system of oil gas and application process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106321025A true CN106321025A (en) | 2017-01-11 |
| CN106321025B CN106321025B (en) | 2017-09-12 |
Family
ID=57816546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610969268.5A Expired - Fee Related CN106321025B (en) | 2016-10-28 | 2016-10-28 | A kind of coal and the green harmonic extraction system of oil gas and application process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321025B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448178A (en) * | 2017-08-25 | 2017-12-08 | 平安煤炭开采工程技术研究院有限责任公司 | Coal-bearing strata coal and petroleum resources recovery method and device |
| CN109162676A (en) * | 2018-09-27 | 2019-01-08 | 太原理工大学 | A kind of method of coal bed gas and ponding methane drainage and utilization project simultaneously in goaf |
| CN110043261A (en) * | 2019-05-21 | 2019-07-23 | 安徽理工大学 | A kind of coal uranium harmonic extraction perspectiveization physical simulating device and application method |
| CN113323663A (en) * | 2021-06-03 | 2021-08-31 | 安徽理工大学 | Associated resource is exploitation intelligent experimental apparatus in coordination altogether |
| CN114165210A (en) * | 2021-12-16 | 2022-03-11 | 中国矿业大学(北京) | Deep coal resource fluidization mining method and system |
| CN114687709A (en) * | 2022-04-08 | 2022-07-01 | 陕西延长石油（集团）有限责任公司 | Device and method for recycling coalbed methane and oil gas in collaborative mining |
| CN115030700A (en) * | 2022-04-26 | 2022-09-09 | 安徽理工大学 | Oil gas extraction system for fracturing oil gas reservoir by utilizing coal bed gas |
| WO2023005931A1 (en) * | 2021-07-29 | 2023-02-02 | 安徽理工大学 | Coal gangue comprehensive utilization system for associated-resource mining area, and application method for system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050133219A1 (en) * | 2002-09-12 | 2005-06-23 | Cdx Gas, Llc, A Texas Limited Liability Company | Three-dimensional well system for accessing subterranean zones |
| CN101563524A (en) * | 2006-10-13 | 2009-10-21 | 埃克森美孚上游研究公司 | Combined development of oil shale by in situ heating with a deeper hydrocarbon resource |
| US8464784B2 (en) * | 1998-11-20 | 2013-06-18 | Vitruvian Exploration, Llc | Method and system for accessing subterranean deposits from the surface and tools therefor |
| CN103174453A (en) * | 2013-03-28 | 2013-06-26 | 重庆大学 | Layered hydraulic fracturing method of underground coal mine multiple coal seams |
| CN105649578A (en) * | 2016-01-29 | 2016-06-08 | 西南石油大学 | Vertical-well double-layer partial-pressure commingling method and device for coalbed methane |
-
2016
- 2016-10-28 CN CN201610969268.5A patent/CN106321025B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8464784B2 (en) * | 1998-11-20 | 2013-06-18 | Vitruvian Exploration, Llc | Method and system for accessing subterranean deposits from the surface and tools therefor |
| US20050133219A1 (en) * | 2002-09-12 | 2005-06-23 | Cdx Gas, Llc, A Texas Limited Liability Company | Three-dimensional well system for accessing subterranean zones |
| CN101563524A (en) * | 2006-10-13 | 2009-10-21 | 埃克森美孚上游研究公司 | Combined development of oil shale by in situ heating with a deeper hydrocarbon resource |
| CN103174453A (en) * | 2013-03-28 | 2013-06-26 | 重庆大学 | Layered hydraulic fracturing method of underground coal mine multiple coal seams |
| CN105649578A (en) * | 2016-01-29 | 2016-06-08 | 西南石油大学 | Vertical-well double-layer partial-pressure commingling method and device for coalbed methane |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448178A (en) * | 2017-08-25 | 2017-12-08 | 平安煤炭开采工程技术研究院有限责任公司 | Coal-bearing strata coal and petroleum resources recovery method and device |
| CN107448178B (en) * | 2017-08-25 | 2020-05-05 | 平安煤炭开采工程技术研究院有限责任公司 | Method and device for exploiting coal and oil gas resources of coal-bearing stratum |
| CN109162676A (en) * | 2018-09-27 | 2019-01-08 | 太原理工大学 | A kind of method of coal bed gas and ponding methane drainage and utilization project simultaneously in goaf |
| CN110043261A (en) * | 2019-05-21 | 2019-07-23 | 安徽理工大学 | A kind of coal uranium harmonic extraction perspectiveization physical simulating device and application method |
| CN113323663A (en) * | 2021-06-03 | 2021-08-31 | 安徽理工大学 | Associated resource is exploitation intelligent experimental apparatus in coordination altogether |
| WO2022253360A1 (en) * | 2021-06-03 | 2022-12-08 | 安徽理工大学 | Intelligent experimental apparatus for collaborative mining of co-associated resources |
| US11953512B2 (en) | 2021-06-03 | 2024-04-09 | Anhui University of Science and Technology | Intelligent experimental device for collaborative mining of associated resources |
| WO2023005931A1 (en) * | 2021-07-29 | 2023-02-02 | 安徽理工大学 | Coal gangue comprehensive utilization system for associated-resource mining area, and application method for system |
| CN114165210A (en) * | 2021-12-16 | 2022-03-11 | 中国矿业大学(北京) | Deep coal resource fluidization mining method and system |
| CN114687709A (en) * | 2022-04-08 | 2022-07-01 | 陕西延长石油（集团）有限责任公司 | Device and method for recycling coalbed methane and oil gas in collaborative mining |
| CN114687709B (en) * | 2022-04-08 | 2023-10-31 | 陕西延长石油（集团）有限责任公司 | Coal bed gas and oil gas collaborative exploitation recycling device and method |
| CN115030700A (en) * | 2022-04-26 | 2022-09-09 | 安徽理工大学 | Oil gas extraction system for fracturing oil gas reservoir by utilizing coal bed gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106321025B (en) | 2017-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106321025A (en) | Coal and oil gas green coordination exploiting system and application method thereof | |
| Wang et al. | Safe strategy for coal and gas outburst prevention in deep-and-thick coal seams using a soft rock protective layer mining | |
| Jinhu et al. | Discussion on effective development techniques for continental tight oil in China | |
| CN107313778B (en) | A kind of second mining super high seam stops the method for adopting line coal column | |
| CN102080526B (en) | Method for extracting gas from bedding level fractured well of ground coal seam roof | |
| CN102080518B (en) | Method for extracting gas from coal seam roof complex branched well | |
| AU2001250938B2 (en) | Method for production of hydrocarbons from organic-rich rock | |
| CN102352769A (en) | Integrated mining method for commonly mining coal and gas of high mine | |
| US20160069170A1 (en) | Method and process for extracting shale oil and gas by fracturing and chemical retorting in oil shale in-situ vertical well | |
| CN102877884B (en) | The difficult to understand grey top transformation of a kind of mine based on km directional drilling technology and construction method | |
| CN102392678A (en) | Gas drainage method combining surface and underground fracturing and permeability improvement | |
| CN1875168A (en) | Hydrocarbon recovery from impermeable oil shales | |
| CN104806217A (en) | Combined separated layer fracturing, grouping and layer-combining mining method for coal bed well group | |
| CN102392677A (en) | Permeability improvement technology for coal bed gas reservoir cap by using three-dimensional fracture network modification | |
| CN107339105B (en) | A method of stop adopting line coal column in the layering residual exploiting field of paste body filling second mining super high seam | |
| CN106089291A (en) | A kind of collaborative extraction is caving the old dead zone of formula and the method for lower coal seam coal bed gas | |
| CN106761750B (en) | Slot type recovery method is built in the longwell plane milling of half-edge coal seam longitudinal direction | |
| CN105239964A (en) | Protective coal seam decompressing ground and underground three-dimensional coal and coal seam gas coordinated development method | |
| RU2587661C1 (en) | Method for development of explored oil deposit | |
| CN107194615A (en) | The evaluation method of coal mine underground reservoir construction applicability | |
| CN105971563A (en) | Extraction method for coal bed gas in composite old mined-out area formed through lower tool post method | |
| CN111608624A (en) | Method for exploiting heavy oil reservoir by utilizing terrestrial heat | |
| CN103628848B (en) | Multidirectional interlayer displacement in flooding oil production method and system | |
| Chowdhury Quamruzzaman et al. | A Proposal of Open Pit Coal Mine at the Northern Part of Barapukuria Coalfield, Dinajpur, Bangladesh | |
| CN102251798A (en) | Hole distribution method for long-acting extraction of ground coal bed gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 Termination date: 20181028 |