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1. 发明公开

US20230313682A1 HOLE PROTECTION SYSTEM AND METHOD FOR COAL SEAM SLOTTING AND FRACTURING COMBINED DRAINAGE 审中-公开
公开(公告)号：US20230313682A1
公开(公告)日：2023-10-05
申请号：US18185655
申请日：2023-03-17
申请人： Hancheng Zaozhuang Industrial Co., Ltd. , Chongqing University
发明人： Xiaoyan SUN , Quanle ZOU , Qican RAN , Peimiao SANG , Jinyan LIANG , Ning LI , Wei PI
IPC分类号： E21B7/18 , E21B43/26 , E21B43/10 , E21F7/00 , E21C41/18
CPC分类号： E21F7/00 , E21B7/18 , E21B43/103 , E21B43/2607 , E21C41/18 , E21B10/46
摘要： Disclosed are a hole protection system and a method for coal seam slotting and fracturing combined drainage. The system includes a hydraulic slotting subsystem, a hydraulic fracturing subsystem and a flexible hole protection system. The hydraulic slotting subsystem includes an ultra-high pressure water jet generating module, a drill pipe drilling tool module, an orifice sealer, a gas slag separator and a drilling rig. The hydraulic fracturing system includes an emulsion pump station, a water tank, a hole sealing device, a fracturing string and a casing. The flexible hole protection system includes a front end fixing device, a water injection support pipe, a first flexible support and a water injection connecting section.

2. 发明授权

US11504754B2 Portable gas monitor 有权
公开(公告)号：US11504754B2
公开(公告)日：2022-11-22
申请号：US16180123
申请日：2018-11-05
申请人： Elkins Earthworks, LLC
发明人： Charles Elkins
IPC分类号： B09B1/00 , G01V9/00 , E21B47/00 , E21B47/07 , E21B47/06 , E21B49/08 , G01V11/00 , E21F7/00
摘要： A portable monitor used to measure landfill gas and landfill well parameters. The portable monitor includes a control unit and a measuring unit that can communicate wirelessly with one another. The control unit and/or measuring unit can include a heating arrangement to increase the temperature of one or more components in the control unit and/or measuring unit in cold environments.

3. 发明申请

US20220205361A1 FULL-LENGTH SCREEN PIPE HOLE PROTECTION DEVICE AND METHOD WITH PRESSURIZED HOLE PACKING IN SOFT COAL SEAM 有权
公开(公告)号：US20220205361A1
公开(公告)日：2022-06-30
申请号：US17596840
申请日：2020-11-09
申请人： SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
发明人： Guanhua NI , Kai DONG , Weimin CHENG , Jingna XIE , Gang WANG , Yixin LIU , Qiming HUANG
IPC分类号： E21F7/00 , C04B28/26 , C09K3/10 , E21B33/13 , E21B43/00 , E21B43/08 , E21B33/12
摘要： A full-length screen pipe hole protection device and method with pressurized hole packing in a soft coal seam relates to the field of gas drainage technologies. The device includes a grouting system, a drainage system and a hole fixing system. The grouting system injects a pressurized sealing material into a borehole through a pressure pump to increase a sealing effect of the borehole. The drainage system drains gas in the middle of air holes on metal baffle plates and hole fixing screen pipes through a drainage pipe to increase flowability of gas. The hole fixing system is inside the borehole and fixed with the metal baffle plates, and the hole fixing screen pipes are fixedly connected with each other through fitting mouths and fitting buckles. The device is fixedly mounted in the gas drainage borehole. After hole packing, the drainage pipe is connected with a drainage pump to drain gas.

4. 发明申请

US20220154578A1 BARRIER ASSEMBLY 有权
公开(公告)号：US20220154578A1
公开(公告)日：2022-05-19
申请号：US17430783
申请日：2020-02-13
申请人： ENI S.P.A.
发明人： Luca Decarli , Laura La Rosa , Alberto Renato De Angelis , Andrea Vignali
IPC分类号： E21F7/00 , E04B2/74 , E04B1/94
摘要： A barrier assembly used in the protection of personnel at worksites and/or residential areas from escapes of gas. Such a barrier assembly controls the lateral and vertical spread of gas in the event of an escape of the gas, even more particularly toxic gas. The barrier assembly can be used at operating sites where gases are produced, and in particular where high concentrations of toxic gases (e.g. CO2, H2S, SO2, mercaptans etc.) are present. The barrier assembly can, optionally acting as a safety system in the event of an accidental uncontrolled release of these toxic gases into the atmosphere.

5. 发明申请

US20190145259A1 METHOD FOR STEPWISE CONSTRUCTION OF PREFERENTIAL GAS MIGRATION PATHWAY AT STOPE IN COAL SEAM 审中-公开
公开(公告)号：US20190145259A1
公开(公告)日：2019-05-16
申请号：US16097828
申请日：2017-12-01
申请人： China University of Mining and Technology
发明人： Baiquan LIN , Tong LIU , Ting LIU , Wei YANG , He LI , Zhanbo HUANG , Rui WANG , Yihan WANG
IPC分类号： E21F7/00
CPC分类号： E21F7/00
摘要： A method for stepwise construction of a preferential gas migration pathway at a stope in a coal seam. First, a gas migration pathway is preliminarily formed at a stope depending on a mining effect of mining in a first mined seam. construction and stabilization method of gob-side entry retaining in deep strata, and a method of manual-guided pre-fracturing boreholes are then used to perform active construction respectively in external space and the outside of coal-rock mass to form preferential gas migration pathways. Eventually, under the effect of mining-induced stress, a system of preferential gas migration pathways connected to each other at the stope is further formed.

6. 发明申请

US20180209259A1 METHOD FOR GAS EXTRACTION ALTERNATING OSCILLATING PULSE HIGH ENERGY GAS EXTRACTION WITH THERMAL INJECTION 审中-公开
公开(公告)号：US20180209259A1
公开(公告)日：2018-07-26
申请号：US15321891
申请日：2015-12-22
申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY
发明人： Baiquan LIN , Quanle Zou , Ting Liu , Chang Guo , Chuanjie Zhu , Jia Kong , Fazhi Yan , Hao Yao , Yidou Hong
IPC分类号： E21B43/267 , E21B43/24 , E21F7/00 , E21B36/00
CPC分类号： E21B43/267 , E21B36/006 , E21B43/114 , E21B43/2405 , E21F7/00
摘要： A gas extraction method in which high energy gas fracturing technology is used to form a fracture network in a thermal injection borehole. Then high-pressure, cyclically temperature-changing steam is injected into the borehole using a spinning oscillating-pulse jet nozzle to form oscillating superheated steam, alternatingly impacting and heating the coal body. The high energy gas forms a fracture network that provides channels for passage of the superheated steam, while oscillating changes in steam temperature and pressure also promote crack propagation and perforation of the coal body; the combined effect of alternation of the two enhances gas desorption and extraction efficiency.

7. 发明授权

US09605512B2 Mine area distributed combined cooling heating power energy system for extracting gas for coal mine 有权
公开(公告)号：US09605512B2
公开(公告)日：2017-03-28
申请号：US14416004
申请日：2014-01-27
申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY
发明人： Baiquan Lin , Qingzhao Li
IPC分类号： E21B36/00 , E21F7/00 , E21B41/00 , E21B43/12 , E21F3/00
CPC分类号： E21B36/00 , E21B36/006 , E21B41/0085 , E21B43/122 , E21F3/00 , E21F7/00 , Y02P80/156
摘要： A distributed combined cooling, heating and power energy system for gas extraction in a coal mining area, which belongs to an energy system for gas production. A gas extraction pump station, a gas storage tank, a water-sealing flame arrester, a wire mesh filter, a first pipeline flame arrester, a wet-type bleeding valve and a cyclone dehydrator are sequentially connected; an outlet of the cyclone dehydrator is divided into two branches, one branch sequentially connected with a second pipeline flame arrester, a proportioning mixer, a gas power machine, a waste heat boiler and a waste heat-type double-effect lithium bromide absorption water chiller/heater unit, and the other connected with a gas-type double-effect lithium bromide absorption water chiller/heater unit; a first power generator is connected with the gas power machine, a water storage tank outlet is connected with a pressurizing pump, a second power generator is connected with a steam turbine and driven by the steam power machine to generate power, and cold/hot water of the waste heat-type water chiller/heater unit and the gas-type water chiller/heater unit is delivered through an energy supply pipeline after collection and mixing. With the power energy system mining area, clean production and utilization of coal-mine gas and economic development of coal mine areas are realized.

8. 发明授权

US09551209B2 System and method for accessing subterranean deposits 有权
标题翻译：用于访问地下沉积物的系统和方法
公开(公告)号：US09551209B2
公开(公告)日：2017-01-24
申请号：US14298520
申请日：2014-06-06
申请人： Effective Exploration, LLC
发明人： Joseph Zupanick
IPC分类号： E21B43/00 , E21B43/30 , B65G5/00 , E21B7/04 , E21B10/32 , E21B21/08 , E21B41/00 , E21B43/14 , E21B43/38 , E21B43/40 , E21B44/00 , E21B47/026 , E21B47/09 , E21F7/00 , G01V1/48 , E21B21/00
CPC分类号： E21B43/30 , B65G5/00 , E21B7/046 , E21B10/322 , E21B21/08 , E21B41/0035 , E21B41/0057 , E21B43/00 , E21B43/006 , E21B43/14 , E21B43/305 , E21B43/38 , E21B43/40 , E21B44/005 , E21B47/026 , E21B47/09 , E21B2021/006 , E21F7/00 , G01V1/48
摘要： According to one embodiment, a system for accessing a subterranean zone from the surface includes a well bore extending from the surface to the subterranean zone, and a well bore pattern connected to the junction and operable to drain fluid from a region of the subterranean zone to the junction.
摘要翻译：根据一个实施例，用于从表面接近地下区域的系统包括从表面延伸到地下区域的井眼，以及连接到接合处并且可操作地将流体从地下区域的区域排出的井眼图案，交界处。

9. 发明授权

US08740310B2 Mining method for co-extraction of non-combustible ore and mine methane 有权
标题翻译：共同提取不可燃矿石和矿山甲烷的采矿方法
公开(公告)号：US08740310B2
公开(公告)日：2014-06-03
申请号：US12487802
申请日：2009-06-19
申请人： Larry Refsdal , Ronald O. Hughes , Bryan M. Mortimer , Richard A. Hodgson , Joseph A. Vendetti
发明人： Larry Refsdal , Ronald O. Hughes , Bryan M. Mortimer , Richard A. Hodgson , Joseph A. Vendetti
IPC分类号： E21F7/00
CPC分类号： E21B43/006 , E21C41/22
摘要： A method for co-extracting non-combustible ore (e.g., trona) and methane from an underground formation comprising at least one methane-bearing layer and a non-combustible ore bed having a rock roof, comprising: providing a well having a downhole end positioned above the ore bed roof; mining an ore region from an initial cavity and removing the mined ore, thereby creating a subsequent cavity; advancing the mining step to another ore region from the subsequent cavity; allowing the roof of the initial cavity to cave so as to create a gob; repeating the mining, advancing and caving steps, the caving being effective in generating fluid communication between the gob and the well downhole end and in fracturing the methane-bearing layer so as to release methane into the gob; and recovering a gob gas comprising released methane through the well to the surface.
摘要翻译：一种用于从包括至少一个含甲烷层和具有岩顶的不可燃矿床的地下地层中共同提取不可燃矿石（例如天然碱）和甲烷的方法，包括：提供具有井下端位于矿床屋顶上方; 从初始腔中开采矿石区域并移除开采的矿石，从而形成随后的空腔; 将采矿步骤从后续空腔推进到另一个矿区; 允许初始腔的屋顶塌陷以产生料滴; 重复采矿，推进和塌陷步骤，洞穴有效地产生料滴和井下井之间的流体连通，并且在瓦解含甲层的压裂中将甲烷释放到料滴中; 以及将包含释放的甲烷的气体气体通过所述井回收到所述表面。

10. 发明申请

US20050257962A1 Method and system for circulating fluid in a well system 失效
标题翻译：在井系统中循环流体的方法和系统
公开(公告)号：US20050257962A1
公开(公告)日：2005-11-24
申请号：US11188250
申请日：2005-07-22
申请人： Joseph Zupanick
发明人： Joseph Zupanick
IPC分类号： E21B7/04 , E21B43/00 , E21B43/30 , E21B43/40 , E21B47/09 , E21F7/00 , E21B21/14
CPC分类号： E21B43/40 , E21B7/046 , E21B43/006 , E21B43/305 , E21B47/09 , E21F7/00
摘要： A method for circulating drilling fluid in a well system includes drilling a substantially vertical well bore from a surface to a subterranean zone and drilling an articulated well bore from the surface to the subterranean zone. The articulated well bore is horizontally offset from the substantially vertical well bore at the surface and intersects the substantially vertical well bore at a junction proximate the subterranean zone. The method includes drilling a drainage bore from the junction into the subterranean zone and pumping a drilling fluid through the drill string when drilling the drainage bore. The method also includes providing fluid down the substantially vertical well bore through a tubing. A fluid mixture returns up the substantially vertical well bore outside of the tubing. The fluid mixture comprises the drilling fluid after the drilling fluid exits the drill string.
摘要翻译：在井系统中循环钻井液的方法包括从表面到地下区域钻出基本垂直的井眼，并从表面钻探到铰接的井眼到地下区域。铰接的井眼水平地偏离表面上的基本垂直的井眼，并且在邻近地下区域的连接处与基本垂直的井眼相交。该方法包括从连接处钻入排水孔至地下区域，并在钻孔时将钻井液泵送穿过钻柱。该方法还包括通过管道向下提供基本垂直的井筒的流体。流体混合物返回管道外部的基本垂直的井筒。在钻井液离开钻柱之后，流体混合物包括钻井液。

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