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1.发明申请公开(公告)号：US20150107831A1
公开(公告)日：2015-04-23
申请号：US14580750
申请日：2014-12-23
发明人： Guoan ZHANG , Jianlong CHENG , Xianhong SUN
IPC分类号： E21B43/1185 , E21B43/263
CPC分类号： E21B43/263 , E21B43/117
摘要： This invention provides a multi-frac composite perforation device having (i) a gun body having an outer wall, (ii) an inner gunpowder box between adjacent perforating charges in the charge frame 1 of said perforation device, and (iii) a structure for gunpowder charge with an outer gunpowder box 4 attached to an outer wall of the charge frame 1, the gun body has a pressure releasing structure corresponding to a closed end of the perforating charge. This invention further provides a method of using the multi-frac composite perforating device to fracture a formation and the choice of gunpowders and gun body thickness with regards to the pressure required for fracturing a formation.
摘要翻译： 本发明提供一种多压裂复合穿孔装置，其具有（i）具有外壁的枪主体，（ii）位于所述穿孔装置的充电架1中的相邻穿孔装置之间的内部火药盒，以及（iii） 火药装有附加到充电架1的外壁的外部火药盒4，枪体具有对应于穿孔电荷的封闭端的压力释放结构。 本发明还提供了一种使用多压裂复合穿孔装置来破裂地层的方法，以及关于压裂地层所需的压力的枪口和枪体厚度的选择。
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公开(公告)号：US20130146287A1
公开(公告)日：2013-06-13
申请号：US13759060
申请日：2013-02-05
发明人： Guoan ZHANG , Jianlong CHENG
IPC分类号： E21B43/267 , E21B43/11
CPC分类号： E21B43/267 , E21B43/11 , E21B43/116
摘要： The present invention provides composite perforation methods and device with propping agent capable of effectively propping the fractures in the oil layer, thereby reducing the closure of fractures and prolonging the oil extraction cycle. The device comprises one or more connected perforators wherein each of said perforator comprises one or more perforating charges and a propping agent unit 7 at the open end of each of said perforating charge, a pressure release hole 9 located directly behind the jet flow of said perforating charge, and a shatterable sealing sheet 8 mounted on said pressure releasing hole 9, wherein said propping agent unit 7 comprises a propping agent box 70, a center through-hole 71 located at the center of said propping agent box 70, and propping agent 72 in said propping agent box 70.
摘要翻译： 本发明提供了具有能够有效地支撑油层中的裂缝的支撑剂的复合穿孔方法和装置，从而减少了断裂闭合并延长了提油循环。 该装置包括一个或多个连接的穿孔器，其中每个所述穿孔器包括一个或多个穿孔装料和在每个所述穿孔装料的开口端的支撑剂单元7，位于所述穿孔装置的喷射流的正后方的压力释放孔9 充电和安装在所述压力释放孔9上的可粉碎密封片8，其中所述支撑剂单元7包括支撑剂箱70，位于所述支撑剂箱70中心的中心通孔71和支撑剂72 在所述支撑剂盒70中。
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3.发明申请公开(公告)号：US20130145924A1
公开(公告)日：2013-06-13
申请号：US13759064
申请日：2013-02-05
发明人： Guoan ZHANG , Jianlong CHENG , Xianhong SUN
IPC分类号： E21B43/119
CPC分类号： E21B43/119
摘要： This invention provides a structure for gunpowder charge for charging gunpowders of different rates in combined fracturing perforation devices. The structure for gunpowder charge is convenient to mount and transport. In one embodiment, said structure for gunpowder charge comprises an inner gunpowder box located between adjacent perforating charges in the charge frame of a perforation device, and an outer gunpowder box attached to the outer wall of the charge frame, wherein said outer gunpowder box comprises one or two box units (2 or 4) with at least one claw at the inner side of said box unit, said claw can be locked into a groove or installation hole of the charge frame, and wherein said inner gunpowder box and said outer gunpowder box are charged with gunpowders of different burning rates.
摘要翻译： 本发明提供了一种用于在组合压裂穿孔装置中对不同速率的火药进行充电的火药充电结构。 火药装料结构方便安装和运输。 在一个实施例中，所述用于火药装料的结构包括位于穿孔装置的充电框架中的相邻穿孔装料之间的内部火药盒和附接到充电架的外壁的外部火药盒，其中所述外部火药盒包括一个 或两个箱单元（2或4），在所述盒单元的内侧具有至少一个爪，所述爪可以锁定到收费框架的槽或安装孔中，并且其中所述内火药盒和所述外火药盒 被控以不同燃烧率的火药。
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