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公开(公告)号：US20060054325A1
公开(公告)日：2006-03-16
申请号：US10941355
申请日：2004-09-15
申请人： J. Brown , John Still , Diankui Fu , Zhijun Xiao , Wayne Frenier
发明人： J. Brown , John Still , Diankui Fu , Zhijun Xiao , Wayne Frenier
IPC分类号： E21B43/26
CPC分类号： C09K8/62
摘要： A dry solid composition is disclosed that, when added to an aqueous liquid, provides a slurry that can be used in sandstone acid fracturing. The slurry generates hydrofluoric acid downhole to etch the sandstone fracture faces created. The chemical and physical properties of the composition result in very uneven etching of the fracture faces, enhancing the fluid conductivity of the final fracture. Optionally, inert masking materials may be included in the dry composition, or added to the slurry, to increase the inhomogeneity of the etching and further increase the fluid conductivity.
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公开(公告)号：US20050113263A1
公开(公告)日：2005-05-26
申请号：US10941385
申请日：2004-09-15
申请人： J. Brown , John Still , Diankui Fu , Zhijun Xiao
发明人： J. Brown , John Still , Diankui Fu , Zhijun Xiao
摘要： A method for fracturing a subterranean formation is provided in which inert masking material particles are injected into the formation with a dissolution agent so that the masking material inhibits dissolution where it contacts a portion of one or both fracture faces. The undissolved regions provide support to keep the fracture open after the treatment and the dissolved regions provide a conductive pathway for flow of fluid to or from the wellbore.
摘要翻译： 提供了一种用于压裂地层的方法，其中惰性掩蔽材料颗粒用溶解剂注入到地层中，使得掩蔽材料在其接触一个或两个断裂面的一部分时抑制溶解。 未溶解区域提供支撑以在处理后保持断裂，并且溶解区域提供用于将流体流入或流出井眼的导电路径。
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公开(公告)号：US20080006409A1
公开(公告)日：2008-01-10
申请号：US11858266
申请日：2007-09-20
申请人： J. Ernest Brown , John Still , Diankui Fu , Zhijun Xiao , Wayne Frenier
发明人： J. Ernest Brown , John Still , Diankui Fu , Zhijun Xiao , Wayne Frenier
IPC分类号： E21B43/27
CPC分类号： C09K8/62
摘要： A dry solid composition is disclosed that, when added to an aqueous liquid, provides a slurry that can be used in sandstone acid fracturing. The slurry generates hydrofluoric acid downhole to etch the sandstone fracture faces created. The chemical and physical properties of the composition result in very uneven etching of the fracture faces, enhancing the fluid conductivity of the final fracture. Optionally, inert masking materials may be included in the dry composition, or added to the slurry, to increase the inhomogeneity of the etching and further increase the fluid conductivity.
摘要翻译： 公开了一种干固体组合物，当加入到含水液体中时，提供可用于砂岩酸压裂的浆料。 该浆液在井下产生氢氟酸以蚀刻产生的砂岩断裂面。 组合物的化学和物理性质导致断裂面的非常不均匀的蚀刻，增强了最终断裂的流体导电性。 任选地，惰性掩蔽材料可以包括在干燥组合物中或加入到浆料中，以增加蚀刻的不均匀性并进一步提高流体导电性。
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公开(公告)号：US20060058197A1
公开(公告)日：2006-03-16
申请号：US10941384
申请日：2004-09-15
申请人： J. Brown , John Still
发明人： J. Brown , John Still
摘要： A method is given for acid fracturing a subterranean formation for improving the flow of fluids. The principal source, optionally the sole source, of the acid is a solid acid-precursor, optionally injected with an additional solid that is inert and that masks a portion of the newly created fracture faces so that the fracture face etching by the acid is not uniform. The method ensures a good flow path for fluids between the fracture tip and the wellbore.
摘要翻译： 给出了一种用于酸压裂地下地层以改善流体流动的方法。 酸的主要来源，任选地唯一的来源是固体酸前体，任选地注入惰性的另外的固体，并且掩盖新生成的裂缝面的一部分，使得酸的断裂面蚀刻不是 制服。 该方法确保了在裂缝尖端和井筒之间的流体的良好流动路径。
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5.发明申请公开(公告)号：US20070163775A1
公开(公告)日：2007-07-19
申请号：US11306869
申请日：2006-01-13
申请人： Ian Walton , John Still , Alfredo Fayard , Charles Woodburn
发明人： Ian Walton , John Still , Alfredo Fayard , Charles Woodburn
IPC分类号： E21B23/00
CPC分类号： E21B43/263
摘要： Methods and systems for creating fractures in a geological formation surrounding a well bore. In one implementation, a treatment material may be disposed at the bottom of the well bore. One or more propellant apparatuses may be immersed in the treatment material and a propellant may then be burned inside a first propellant apparatus to create fractures in the geological formation.
摘要翻译： 在围绕井眼的地质构造中产生裂缝的方法和系统。 在一个实施方案中，处理材料可以设置在井眼的底部。 一个或多个推进剂装置可以浸入处理材料中，然后在第一推进剂装置内燃烧推进剂以在地质层中产生裂缝。
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公开(公告)号：US20070044966A1
公开(公告)日：2007-03-01
申请号：US11424676
申请日：2006-06-16
申请人： Stephen Davies , Frank Espinosa , John Still , Jean-Louis Pessin
发明人： Stephen Davies , Frank Espinosa , John Still , Jean-Louis Pessin
IPC分类号： E21B33/12
CPC分类号： E21B33/1208 , C09K8/516
摘要： Methods for creating packers at a desired location or locations within a wellbore for use in specific wellbore applications. A slurry of fluid medium and hydrolysable particulate matter is flowed to a downhole position and dehydrated. At this location, the particulate matter is released from the fluid medium and accumulated. The continual accumulation of the slurry and consequent deposition of particulate matter creates a degradable packer at the desired location within the wellbore. The particulate matter may be formed of an acid particle which may be removable, degradable, or hydrolysable under certain conditions of temperature, time, hydration, pH, and/or pressure. Either simultaneous with or subsequent to a wellbore activity, the packer is partially or completely removed from the wellbore.
摘要翻译： 在井眼中的期望位置或位置处创建包装器以用于特定井眼应用的方法。 流体介质和可水解颗粒物质的浆液流入井下位置并脱水。 在这个位置，颗粒物质从流体介质中释放并积聚。 浆料的持续积累和随之而来的颗粒物质的沉积在井眼内的所需位置产生可降解的封隔器。 颗粒物质可以由在特定温度，时间，水合，pH和/或压力条件下可去除，可降解或可水解的酸性颗粒形成。 与井眼活动同时或之后，封隔器部分或完全从井筒中移除。
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