公开(公告)号：US6166103A

公开(公告)日：2000-12-26

申请号：US217757

申请日：1998-12-21

申请人： Quintin J. Lai ,  E. Mark Scott

发明人： Quintin J. Lai ,  E. Mark Scott

IPC分类号： C09K8/512 ,  C09K7/02

CPC分类号： C09K8/512

摘要： An aqueous gelable composition containing an organic, water soluble polymer cross-linkable with a multivalent cation and a retarded cross-linking system consisting essentially of chromium trichloride and monosodium glutamate and a method for reducing the permeability of the subterranean formation using the composition.

摘要翻译： 含有可与多价阳离子交联的有机水溶性聚合物和基本上由三氯化铬和谷氨酸一钠组成的延迟交联体系的水性可胶凝组合物，以及使用该组合物降低地层渗透性的方法。

公开(公告)号：US5425421A

公开(公告)日：1995-06-20

申请号：US132002

申请日：1993-10-05

申请人： James R. Coleman ,  Steven D. Crane ,  Quintin J. Lai

发明人： James R. Coleman ,  Steven D. Crane ,  Quintin J. Lai

IPC分类号： C09K8/512 ,  E21B33/138 ,  E21B43/26 ,  F02B3/06

CPC分类号： C09K8/512 ,  E21B33/138 ,  E21B43/26 ,  F02B3/06

摘要： Hydraulic fractures which extend between a hydrocarbon fluid producing zone of an earth formation and a water-producing zone are sealed with respect to the water-producing zone by simultaneously injecting a non-sealing fluid such as crude oil, diesel fuel or brine into the portion of the fracture extending within the hydrocarbon producing zone and injecting a settable gel composition such as a polyacrylamide polymer cross-linked with inorganic transition metals into the portion of the fracture extending within the water-producing zone. The flow rates of the simultaneously pumped fluids are controlled in accordance with the ratio of the respective fracture heights and the viscosity and density of the respective sealing and non-sealing fluids. One fluid is typically pumped through the well annulus while the other fluid is pumped through a tubing string which is sealed from the annulus by a conventional packer disposed at the interface between the hydrocarbon and water-bearing zones.

摘要翻译： 通过同时将诸如原油，柴油或盐水的非密封流体同时注入到该部分中的部分中，相对于水生产区密封在地层的烃流体产生区和产水区之间延伸的水力裂缝 的裂缝在烃产生区域内延伸，并且将可凝固的凝胶组合物例如与无机过渡金属交联的聚丙烯酰胺聚合物注入到在产水区内延伸的断裂部分中。 根据相应的裂缝高度与相应的密封和非密封流体的粘度和密度的比例来控制同时泵送的流体的流量。 一个流体通常被泵送通过井环，而另一个流体被泵送通过管道柱，该管柱通过设置在烃和含水区之间的界面处的常规封隔器与环空密封。

公开(公告)号：US5404951A

公开(公告)日：1995-04-11

申请号：US88456

申请日：1993-07-07

申请人： Quintin J. Lai ,  Daniel P. Newhouse

发明人： Quintin J. Lai ,  Daniel P. Newhouse

IPC分类号： C09K8/508 ,  E21B33/138

CPC分类号： E21B33/138 ,  C09K8/5086

摘要： Hydrocarbon bearing earth formations are treated to reduce formation permeability and fill void spaces by injecting a polymer gel solution having an artificial matrix material dispersed therein and comprising beads of materials such as polystyrene and polycarbonate having densities substantially the same as the density of the polymer gel to improve distribution of the artificial matrix material into such void spaces.

摘要翻译： 通过注入含有分散在其中的人造基质材料的聚合物凝胶溶液并且包含具有与聚合物凝胶的密度基本相同的密度的聚苯乙烯和聚碳酸酯的材料珠粒来处理含烃地层，以减少地层渗透性并填充空隙空间， 改善人造基质材料在这种空隙空间中的分布。

公开(公告)号：US06265355B1

公开(公告)日：2001-07-24

申请号：US09247479

申请日：1999-02-09

申请人： Quintin J. Lai ,  Daniel P. Newhouse

发明人： Quintin J. Lai ,  Daniel P. Newhouse

IPC分类号： C09K300

CPC分类号： C09K8/528 ,  C09K2208/26 ,  Y10S507/921

摘要： A composition containing a chelating agent and an amino carboxylic acid and a method for breaking a gel formed by a crosslinkable polymer and a crosslinking agent. The composition may also be used for selectively removing crosslinked polymer gels from an oil-bearing zone in a subterranean formation in the presence of a water formation plugged by a crosslinkable polymer and a crosslinking agent. Aqueous solutions of phosphonates and sulfonates are also useful in the method.

摘要翻译： 含有螯合剂和氨基羧酸的组合物以及由可交联聚合物和交联剂形成的凝胶的破坏方法。 该组合物还可用于在由可交联聚合物和交联剂堵塞的水形成物存在下，选择性地从地层中的含油区域除去交联聚合物凝胶。 膦酸盐和磺酸盐的水溶液也可用于该方法中。

公开(公告)号：US6156819A

公开(公告)日：2000-12-05

申请号：US217766

申请日：1998-12-21

申请人： Quintin J. Lai ,  Daniel P. Newhouse

发明人： Quintin J. Lai ,  Daniel P. Newhouse

IPC分类号： C09K8/512 ,  C09K7/02

CPC分类号： C09K8/512

摘要： An aqueous polymer composition containing water and hydrophilic polymers and a method for treating subterranean formations with the composition to reduce formation permeability. The hydrophilic polymers are a mixture of high-molecular-weight polymers having a molecular weight of at least about 2,000,000, and low-molecular-weight polymers having a molecular weight of up to about 1,000,000.

摘要翻译： 含有水和亲水性聚合物的水性聚合物组合物和用该组合物处理地下地层以降低地层渗透性的方法。 亲水性聚合物是分子量至少约为2,000,000的高分子量聚合物和分子量高达约1,000,000的低分子量聚合物的混合物。

公开(公告)号：US6133204A

公开(公告)日：2000-10-17

申请号：US246975

申请日：1999-02-09

申请人： Daniel P. Newhouse ,  Quintin J. Lai

发明人： Daniel P. Newhouse ,  Quintin J. Lai

IPC分类号： C09K8/512 ,  C09K8/88 ,  E21B49/02 ,  C09K3/00 ,  E21B33/13

CPC分类号： C09K8/88 ,  C09K8/512 ,  E21B49/02 ,  C09K2208/26 ,  Y10S507/903 ,  Y10S507/921

摘要： A gel-breaking/gel-inhibiting composition containing at least one carboxylic acid or salt thereof is dispersed in a hydrophobic carrier fluid to break down a cross-linked polymer gel or inhibit the gelation of a polymer gel used in plugging in permeable subterranean formations containing oil-bearing zones and water-bearing zones. The composition may be used to selectively restore permeability to oil-bearing zones in formations containing a cross-linked polymer gel or to inhibit gelation in an oil-bearing zone by injection into the oil-bearing zone prior to or after treatment of the formation containing the oil-bearing zone with an aqueous polymer solution.

摘要翻译： 将含有至少一种羧酸或其盐的凝胶破坏/凝胶抑制组合物分散在疏水性载体流体中以分解交联聚合物凝胶或抑制用于堵塞渗透性地下地层中的聚合物凝胶的凝胶化 含油区和含水区。 组合物可用于选择性地恢复含有交联聚合物凝胶的地层中的含油区域的渗透性，或者在处理含有地层的地层之前或之后，通过注入含油区域来抑制含油区域中的凝胶化 含油聚合物溶液的含油区域。