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21. 发明公开

EP2235321A2 STIMULATION THROUGH FRACTURING WHILE DRILLING 有权
标题翻译：起搏按列教育随钻
公开(公告)号：EP2235321A2
公开(公告)日：2010-10-06
申请号：EP08862990.2
申请日：2008-12-08
申请人： Schlumberger Technology B.V. , Schlumberger Holdings Limited , Services Pétroliers Schlumberger , PRAD Research And Development Limited
发明人： CONKLE, DON , JOHNSON, Ashley , BROWN, James, Ernest , MCLEOD, Trevor , MILLER, Matthew , SULLIVAN, Philip , WILLBERG, Dean
IPC分类号： E21B43/26
CPC分类号： E21B43/26 , E21B7/00
摘要： A method for preparing a formation surrounding a wellbore to bear hydrocarbons through a borehole is disclosed. In one step, a bottomhole assembly is inserted into the borehole. The formation is drilled with the bottomhole assembly. The formation may be characterized with logging tools, probes, sensors, seismic system and/or the like to create first information. One or more fractures are placed in the formation without removal of the bottomhole assembly from the wellbore. Further, continuous drilling of the formation is performed with the bottomhole assembly after/during placing the fractures. Further characterizing of the formation with the probes, sensors/systems or the like is performed to produce second information. Another fracture is placed with feedback from the second information. Repeating the drilling, characterizing and placing of fractures as necessary during the formation preparing process.

22. 发明授权

EP2235321B1 STIMULATION THROUGH FRACTURING WHILE DRILLING 有权
标题翻译：起搏按列教育随钻
公开(公告)号：EP2235321B1
公开(公告)日：2012-04-18
申请号：EP08862990.2
申请日：2008-12-08
申请人： Schlumberger Technology B.V. , Schlumberger Holdings Limited , Services Pétroliers Schlumberger , PRAD Research And Development Limited
发明人： CONKLE, DON , JOHNSON, Ashley , BROWN, James, Ernest , MCLEOD, Trevor , MILLER, Matthew , SULLIVAN, Philip , WILLBERG, Dean
IPC分类号： E21B7/00 , E21B43/26
CPC分类号： E21B43/26 , E21B7/00
摘要： A method for preparing a formation surrounding a wellbore to bear hydrocarbons through a borehole is disclosed. In one step, a bottomhole assembly is inserted into the borehole. The formation is drilled with the bottomhole assembly. The formation may be characterized with logging tools, probes, sensors, seismic system and/or the like to create first information. One or more fractures are placed in the formation without removal of the bottomhole assembly from the wellbore. Further, continuous drilling of the formation is performed with the bottomhole assembly after/during placing the fractures. Further characterizing of the formation with the probes, sensors/systems or the like is performed to produce second information. Another fracture is placed with feedback from the second information. Repeating the drilling, characterizing and placing of fractures as necessary during the formation preparing process.

23. 发明授权

EP1556458B1 SELF-DESTRUCTING FILTER CAKE 有权
标题翻译： SELBSTZERST渲染滤饼
公开(公告)号：EP1556458B1
公开(公告)日：2007-01-03
申请号：EP03769417.1
申请日：2003-10-17
申请人： Services Pétroliers Schlumberger , SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER TECHNOLOGY B.V. , SOFITECH N.V.
发明人： WILLBERG, Dean , DISMUKE, Keith
IPC分类号： C09K8/02 , E21B33/138 , E21B37/06 , C09K8/04
CPC分类号： C09K8/06 , C09K8/03 , C09K8/5045 , C09K8/506 , C09K8/72 , C09K8/74 , Y10S507/923 , Y10S507/933
摘要： A composition and method are given for self-destructive fluid loss additives and filter cakes in wellbores and subterranean formations. The fluid loss additives and filter cakes are formed from a mixture of particulate solid acid-precursors, such as a polylactic acid or a polyglycolic acid, and particulate solid acid-reactive materials, such as magnesium oxide or calcium carbonate. In the presence of water, the solid acid-precursors hydrolyze and dissolve, generating acids that then dissolve the solid acid-reactive materials. The composition is used in oilfield treatments such as drilling, completion and stimulation where it disappears when it is no longer needed without the use of mechanical means or injection of additional fluids.

24. 发明公开

EP1556458A1 SELF-DESTRUCTING FILTER CAKE 有权
标题翻译： SELBSTZERST渲染滤饼
公开(公告)号：EP1556458A1
公开(公告)日：2005-07-27
申请号：EP03769417.1
申请日：2003-10-17
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V. , SOFITECH N.V.
发明人： WILLBERG, Dean , DISMUKE, Keith
IPC分类号： C09K7/00 , E21B33/138 , E21B37/06 , C09K7/02
CPC分类号： C09K8/06 , C09K8/03 , C09K8/5045 , C09K8/506 , C09K8/72 , C09K8/74 , Y10S507/923 , Y10S507/933
摘要： A composition and method are given for self-destructive fluid loss additives and filter cakes in wellbores and subterranean formations. The fluid loss additives and filter cakes are formed from a mixture of particulate solid acid-precursors, such as a polylactic acid or a polyglycolic acid, and particulate solid acid-reactive materials, such as magnesium oxide or calcium carbonate. In the presence of water, the solid acid-precursors hydrolyze and dissolve, generating acids that then dissolve the solid acid-reactive materials. The composition is used in oilfield treatments such as drilling, completion and stimulation where it disappears when it is no longer needed without the use of mechanical means or injection of additional fluids.

25. 发明公开

EP2324196A1 HYDRAULIC FRACTURING PROPPANTS 审中-公开
标题翻译：支持FOR MIDDLE水力压裂
公开(公告)号：EP2324196A1
公开(公告)日：2011-05-25
申请号：EP08876799.1
申请日：2008-08-21
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V. , PRAD Research and Development N.V.
发明人： WILLBERG, Dean , FREDD, Chris, N. , GOLOSHCHAPOVA, Dina Andreevna , MAKARYCHEV-MIKHAILOV, Sergey Mikhailovich
IPC分类号： E21B43/267 , C09K8/80
CPC分类号： E21B43/267 , C09K8/68 , C09K8/80 , C09K8/805 , C09K8/88 , C09K2208/08 , C09K2208/28 , E21B43/261
摘要： A method is given for treating a wellbore in a subterranean formation by hydraulic fracturing, slickwater fracturing, gravel packing, and the like, by using plate-like materials as some or all of the proppant or gravel. The plate-like materials are particularly useful in complex fracture systems, for example in shales. They may be used as from about 20 to about 100% of the proppant. Relative to conventional proppants, plate-like proppants demonstrate (a) enhanced crush resistance of the proppant due to better stress distribution among proppant particles, (b) diminished proppant embedment into formation fracture faces due to the greater contact surface area of proppant particles with the formation, (c) better proppant transport due to lower proppant settling rates, (d) deeper penetration into branched and fine fracture networks, and (e) enhanced proppant flowback control. Preferred plate-like proppants are layered rocks and minerals; most preferred is mica.

26. 发明公开

EP1977079A1 METHOD FOR HYDRAULIC FRACTURING OF SUBTERRANEAN FORMATION 审中-公开
标题翻译： VERFAHREN ZUR HYDRAULISCHEN SPALTENBILDUNG EINER UNTERIRDISCHEN FORMATION
公开(公告)号：EP1977079A1
公开(公告)日：2008-10-08
申请号：EP06769529.6
申请日：2006-01-27
申请人： Schlumberger Technology B.V.
发明人： WILLBERG, Dean , MILLER, Matthew , KOSAREV, Ivan Vitalievich , THIERCELIN, Marc
IPC分类号： E21B43/267
CPC分类号： C09K8/706 , C09K8/80 , E21B43/267 , Y10S507/924
摘要： The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fractureconductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage that involves injection into a borehole of fracturing fluid containing thickeners to create a fracture in the formation; and a second stage that involves periodic introduction of proppant into the injected fracturing fluid to supply the proppant into a created fracture, to form proppant clusters within the fracture to prevent fracture closure and channels for flowing formation fluids between the clusters, wherein the second stage or its sub-stages involve additional introduction of either a reinforcing or consolidation material or both, thus increasing the strength of the proppant clusters formed into the fracture fluid.
摘要翻译：本发明提供了经济有效的水力压裂地下地层的方法，其确保水力分解导电性的改善，因为在整个长度上形成均匀地放置在裂缝中的强支撑剂簇。这些方法之一包括：第一阶段，其涉及将含有增稠剂的压裂流体注入钻孔以在地层中产生断裂的第一阶段; 以及第二阶段，其涉及将支撑剂定期引入注入的压裂流体中，以将支撑剂供应到所产生的裂缝中，以在裂缝内形成支撑剂团簇以防止断裂闭合，以及用于在地层之间流动地层流体的通道，其中第二阶段或其子阶段包括另外引入增强或固结材料或两者，从而增加形成在断裂流体中的支撑剂团簇的强度。

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