| Patents for E21F 7 - Methods or devices for drawing-off gases with or without subsequent use of the gas for any purpose (2,187) |
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| 02/11/2015 | CN204152552U 一种用于煤矿瓦斯抽放管路的负压自动放水装置 A suction pipe for coal mine gas drainage automatic drainage device |
| 02/11/2015 | CN204152475U 穿层钻孔单囊袋封孔装置 Borehole single pouch sealing device |
| 02/11/2015 | CN104343415A 瓦斯抽采钻孔注胀式囊袋封孔器 Gas Borehole Note Expanding pouch sealing device |
| 02/11/2015 | CN103216641B 集成旁通二位五通负压放水阀 Integrated bypass two five-vacuum release valve |
| 02/11/2015 | CN102635341B 煤层气井循环自动补水排采设备 CBM wells automatic replenishment cycle drainage equipment |
| 02/04/2015 | CN204140117U 一种多头抽放器 Drainage is one kind of bull |
| 02/04/2015 | CN104329114A 一种井下钻孔间歇式抽采瓦斯的方法 A downhole drilling intermittent mining extraction method Gas |
| 02/04/2015 | CN104329113A 一种地面钻孔松动爆破煤层底板卸压抽采瓦斯的方法 A method of surface boreholes Shotfiring seam floor drainage Gas Relief |
| 02/04/2015 | CN102808651B 瓦斯抽采系统的自动放水装置 Gas drainage system of automatic drainage device |
| 02/04/2015 | CN102671503B 气渣分离装置 Residue gas separation unit |
| 02/04/2015 | CN102562131B 煤矿瓦斯综合应用系统及其利用方法 Mine gas and using the method of integrated application system |
| 02/03/2015 | US8944014 System and method for control of a gas |
| 01/28/2015 | CN204126666U 煤矿瓦斯抽采管路排水及煤泥煤渣的装置 CMM device mining drainage pipes and slime cinder |
| 01/28/2015 | CN204126665U 智能型瓦斯治理压裂泵组 Intelligent Gas Control Fracturing Pump |
| 01/28/2015 | CN104314610A 一种煤巷条带区域消突方法 An area of eliminating sudden coal roadway striping method |
| 01/28/2015 | CN104314609A 一种用于瓦斯抽采钻井的冷热交替增产方法 A hot gas drainage drilling alternating stimulation method |
| 01/28/2015 | CN104314608A 一种提高煤层瓦斯抽采量的冷热交替系统 A method for increasing the amount of coal seam gas drainage system of alternating hot and cold |
| 01/28/2015 | CN104314607A 一种多阶段提高煤层钻孔瓦斯抽采浓度的方法 A multi-stage method for improving coal seam gas drainage drilling concentration |
| 01/28/2015 | CN104314606A 一种钻孔内水力割缝与瓦斯爆炸致裂煤体联合强化抽采方法 Within a borehole Hydraulic Cutting with gas explosion caused the joint to strengthen crack coal extraction method |
| 01/28/2015 | CN104314605A 一种钻孔内多级瓦斯爆炸致裂煤体强化抽采方法 Within a borehole multistage fracturing in coal gas explosion strengthen drainage methods |
| 01/28/2015 | CN104314508A 一种用于煤层瓦斯抽排钻孔的封孔方法 A sealing method of drilling for coal seam gas extraction |
| 01/28/2015 | CN102733843B 一种模拟煤矿掘进巷道瓦斯运移规律的方法以及实验系统 An analog mine roadway gas migration law method and experimental systems |
| 01/28/2015 | CN102465712B 超长钻孔高压水射流钻割联动煤层瓦斯抽放与防突系统及方法 Long diamond drilling high pressure water jet cutting linkage coal seam gas drainage and outburst prevention system and method |
| 01/21/2015 | CN204114887U 一种可回收热能的通风瓦斯氧化装置 A recyclable heat ventilation air methane oxidation unit |
| 01/21/2015 | CN204113209U 煤矿瓦斯抽放孔“二堵一注”专用布袋封孔器 Mine gas drainage hole "two blocking a note" special bag sealing device |
| 01/21/2015 | CN204113194U 一种集测压与抽采功能于一体的瓦斯钻孔封孔装置 A set of manometry and drainage functions in one device sealing gas drilling |
| 01/21/2015 | CN104295312A 一种煤矿防爆系统 One kind of system of coal mine explosion |
| 01/21/2015 | CN104295289A 一种走向长钻孔瓦斯抽采半径测定方法 Determination of a trend long borehole gas drainage radius |
| 01/21/2015 | CN102486095B 煤层气开采用防煤粉装置 CBM pulverized coal unit with anti- |
| 01/15/2015 | WO2015003219A1 Mineral carbonate looping reactor for ventilation air methane mitigation |
| 01/14/2015 | CN204098955U 一种气动式自动排渣放水器 One kind of pneumatic automatic slagging turn on the water |
| 01/14/2015 | CN104278981A 井下瓦斯抽采钻机 Underground gas drainage drilling rig |
| 01/14/2015 | CN104278969A 一种瓦斯抽采钻孔封堵方法及装置 One kind of gas drainage drilling method and apparatus for sealing |
| 01/14/2015 | CN103291351B 一种矿区分布式煤矿抽采瓦斯热电冷多联产能源系统 One kind of distributed coal mine gas drainage thermoelectric cooling polygeneration energy system |
| 01/14/2015 | CN103216259B 一种防护井下煤层钻孔垮塌的系统 One kind of protection of underground coal seam drilling system collapse |
| 01/07/2015 | CN204082204U 采煤工作面上隅角瓦斯抽采治理安全装置 Upper Corner Coal gas drainage control safety devices |
| 01/07/2015 | CN204082023U 矿井钻孔泄压防喷冲装置 Mine drilling BOP rushed relief device |
| 01/07/2015 | CN104265357A 一种强突煤层预抽防突方法 A potent Predrainaging sudden outburst prevention methods |
| 01/07/2015 | CN104265356A 智能型瓦斯治理压裂泵组 Intelligent Gas Control Fracturing Pump |
| 01/07/2015 | CN104265355A 一种煤矿瓦斯发电站富余瓦斯自动放散方法 One kind of power station coal mine gas emission surplus gas automatic method |
| 01/07/2015 | CN104265354A 一种低透气性煤层水力相变致裂强化瓦斯抽采方法 A low permeability coal phase-change hydraulic fracturing method to strengthen the gas drainage |
| 01/07/2015 | CN104265353A 一种治理坚硬顶板综放面初采期瓦斯超限的方法 An early caving mining method of gas overrun comprehensive governance Hard Roof |
| 01/07/2015 | CN104265239A 煤矿瓦斯抽放孔“二堵一注”专用布袋封孔器 Mine gas drainage hole "two blocking a note" special bag sealing device |
| 01/07/2015 | CN102661167B 被保护层底板上向梳状钻孔瓦斯抽采方法 Drilling is to comb Gas Drainage protective layer on the floor |
| 01/07/2015 | CN102337919B “四期五用”钻孔高效抽采瓦斯工艺方法 "Four five with" Gas drilling process for efficient drainage |
| 12/31/2014 | CN204064344U 一种瓦斯抽放多参数测定器 One kind of multi-parameter measuring gas drainage |
| 12/31/2014 | CN204060774U 一种高突矿井钻孔的三防装置 A high outburst three anti-mine drilling equipment |
| 12/31/2014 | CN204060773U 一种气机双联封闭装置 One kind of air-duplex closure device |
| 12/31/2014 | CN204060772U 钻孔三防密封瓦斯处理器 Three anti-sealing gas drilling processor |
| 12/31/2014 | CN204060771U 回采工作面采空区埋管分级可控抽采瓦斯装置 Mining goaf gas drainage pipe grade controllable device |
| 12/31/2014 | CN204060670U 井下瓦斯抽采钻机 Underground gas drainage drilling rig |
| 12/31/2014 | CN204060615U 矿井水力压裂钻孔封孔装置 Hydraulic fracturing drilling mine sealing device |
| 12/31/2014 | CN204060609U 矿井瓦斯抽采钻孔封孔装置 Mine gas drainage drilling sealing device |
| 12/31/2014 | CN103306712B 煤层气驻波开采方法 CBM standing mining methods |
| 12/24/2014 | CN204041101U 一种瓦斯防喷装置 One kind of gas blowout preventer |
| 12/24/2014 | CN204041099U 管道型微细水雾瓦斯煤尘除静电惰化抑爆装置 Pipe-type fine mist inerting gas and coal dust explosion suppression in addition to static devices |
| 12/24/2014 | CN104234740A 一种低中压空气驱替高压煤层瓦斯系统及其方法 A low pressure air displacement in the high-pressure system and a method of coal seam gas |
| 12/24/2014 | CN104234739A 一种钻孔内瓦斯爆炸致裂煤体强化抽采方法 Drilling a hole fracturing of coal gas explosion strengthen drainage methods |
| 12/24/2014 | CN104234738A 一种低渗煤层多分支定向钻孔割缝增透方法 One kind of multi-branch hypotonic seam directional drilling method slotted AR |
| 12/24/2014 | CN104234737A 酶化促进煤层瓦斯解吸技术及方法 Promotion enzyme seam gas desorption techniques and methods |
| 12/24/2014 | CN104234685A 一种特厚煤层回采面防冲卸压钻孔错层布置方法 One kind of special thick seam mining face anti-red split-level layout relief drilling method |
| 12/24/2014 | CN102493805B 高瓦斯矿井高效井筒揭煤方法 High Gas Mine Shaft efficient method to expose coal |
| 12/24/2014 | CN102383830B 突出煤层区域综合防突方法 Comprehensive outburst prominent seam area method |
| 12/17/2014 | CN204024699U 瓦斯抽放管路排水除淹装置 In addition to the gas drainage pipeline flooded drainage device |
| 12/17/2014 | CN204024698U 一种截留瓦斯抽放结构 One kind of trapped gas drainage structure |
| 12/17/2014 | CN104213932A 一种突出煤层水力相变致裂石门揭煤方法 One kind of phase transition prominent seam hydraulic fracturing method Cross Cut |
| 12/17/2014 | CN104213921A 基于水力割缝的冻结式石门揭煤方法 Based slotting freeze formula method Cross Cut |
| 12/17/2014 | CN103016049B 二叠系首采工作面瓦斯综合治理方法 Permian Coal Face first comprehensive treatment method |
| 12/17/2014 | CN103016045B 矿用连续定量式二次封孔系统 Mine continuous quantitative type secondary sealing system |
| 12/17/2014 | CN102704984B 一种钻孔高浓度瓦斯的抽排采方法及其装置 Mining extraction method and apparatus for drilling a high concentration of gas in |
| 12/10/2014 | CN104196558A 一种煤矿密闭巷道快速安全瓦斯排放方法 One kind of mine roadway closed fast and secure method of gas emissions |
| 12/10/2014 | CN103075180B 一种气液两相射流割缝系统及方法 A gas-liquid two-phase jet cutting system and method |
| 12/10/2014 | CN103075179B 本煤层瓦斯抽采钻孔双管抽采方法 The coal seam gas Borehole double tube drainage methods |
| 12/10/2014 | CN103016044B 煤矿井下钻孔的钻进、增透、修复与气驱置换综合方法 Coal mine drilling boreholes, AR, repair and replacement of gas drive an integrated approach |
| 12/10/2014 | CN102926797B 煤矿三高区钻孔、排粉、增透一体化装置 Mine high zone drilling, ranked powder, AR Integrated Device |
| 12/10/2014 | CN102900396B 煤层瓦斯抽采钻孔封隔一体封孔方法 Coal Seam Gas Borehole one packer sealing method |
| 12/10/2014 | CN102635392B 超前留巷施工抽采工程的无煤柱煤与瓦斯共采方法 Without Pillar stay ahead of coal and gas extraction roadway construction project co-mining method |
| 10/30/2014 | US20140318760 System and Method for the Access of Subterranean Deposits |
| 10/09/2014 | US20140299311 System and Method for Accessing Subterranean Deposits |
| 09/09/2014 | CA2646698C Method of fracturing a coalbed gas reservoir |
| 08/26/2014 | US8813840 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 08/13/2014 | CN203769841U 井下瓦斯抽放气水分离集气装置 Underground gas drainage gas-water separator gas collection system |
| 08/13/2014 | CN203769840U 煤矿用瓦斯抽放封孔器 Coal mine gas drainage sealing device |
| 08/13/2014 | CN203769707U 顺煤层钻孔瓦斯抽采测压一体封孔装置 Along seam gas drainage drilling manometry one sealing device |
| 08/13/2014 | CN103982219A 软煤瓦斯抽放防塌孔装置及方法 Sloughing of soft coal gas drainage hole apparatus and method |
| 08/06/2014 | CN203756220U 一种瓦斯管路除尘器 One kind of gas pipeline dust |
| 08/06/2014 | CN203756218U 煤矿风井主扇通风瓦斯粉尘过滤净化装置 Coal mine air shaft mainfan gas dust filtration and purification equipment |
| 08/06/2014 | CN103967520A 一种煤矿瓦斯抽采管路高效自动放水器 One kind of coal mine gas drainage pipeline efficient automatic turn on the water |
| 08/06/2014 | CN103967513A 瓦斯抽采管放水器 Gas drainage tube drainage device |
| 08/06/2014 | CN102477850B 煤层瓦斯抽采井固井方法和固井系统 Coal seam gas extraction method and well cementing cementing systems |
| 07/30/2014 | CN203742661U 一种用于矿井下瓦斯抽放管道的排渣水装置 A mine gas drainage pipes under water apparatus for slagging |
| 07/30/2014 | CN203742657U 瓦斯抽放排渣放水器 Gas drainage slagging turn on the water |
| 07/30/2014 | CN203742542U 无管注浆封孔装置 No pipe grouting sealing device |
| 07/30/2014 | CN103953519A 主动式驱动双向矿气回收系统 Active drive-way mine gas recovery system |
| 07/30/2014 | CN103953386A 一种上堵下渗抽采采动区瓦斯的方法 An extraction method on block infiltration Gas Mining District |
| 07/30/2014 | CN103953285A 顺层水力冲孔方法 BEDDING hydraulic punching method |
| 07/30/2014 | CN102747953B 一种松软煤层分步式钻护一体化系统及工艺 One kind of soft coal seam step Drill protection integrated systems and processes |
| 07/23/2014 | CN203730978U 平衡阀排瓦斯三通 Valves exhaust gas links |
| 07/23/2014 | CN203730977U 排瓦斯三通 Exhaust gas links |
| 07/23/2014 | CN203730976U 一种气浆分离式三通 One kind of gas-slurry separator tee |