公开(公告)号：US07323434B2

公开(公告)日：2008-01-29

申请号：US10719235

申请日：2003-11-21

申请人： Changming Su ,  Rushan Liu ,  Weiping Xu ,  Zengchen Guan ,  Peizhi Yu ,  Xiushan Liu ,  Jiafen Li ,  Baoyu Guo ,  Yingchun Cui ,  Caixuan Guo ,  Jing Li

发明人： Changming Su ,  Rushan Liu ,  Weiping Xu ,  Zengchen Guan ,  Peizhi Yu ,  Xiushan Liu ,  Jiafen Li ,  Baoyu Guo ,  Yingchun Cui ,  Caixuan Guo ,  Jing Li

IPC分类号： C09K8/18

CPC分类号： C09K8/20 ,  C09K8/24

摘要： An electropositive and water-based production well treating fluid system exhibits electropositivity by using a cationic viscosifier meanwhile matched with a cationic fluid loss additive and, optionally, contains a mud-building agent, an electrical stabilizing agent, a colloid-stabilizing agent, lubricant, an oil layer protective agent and/or a weighting agent. The electropositive production well treating fluid can beffer solve the contradiction of technical requirements between “treating fluid stability” and “bore hole stability”, and features a strong ability to inhibit the dispersion of clay, a good effect of protecting oil-gas reservoirs, fast drilling speeds, regular shape of bore holes and good resistance to salt.

摘要翻译： 正电和水基生产井处理流体系统通过使用阳离子增粘剂同时与阳离子流体损失添加剂匹配而显示正电性，并且任选地含有制泥剂，电稳定剂，胶体稳定剂，润滑剂， 油层保护剂和/或加重剂。 电解生产井处理液可以解决“处理流体稳定性”和“钻孔稳定性”之间的技术要求的矛盾，具有很强的抑制粘土分散的能力，保护油气藏效果好，快速 钻孔速度快，钻孔规则形状，耐盐性好。

公开(公告)号：US20120077718A1

公开(公告)日：2012-03-29

申请号：US13244102

申请日：2011-09-23

申请人： Xiaohua YANG ,  Lin Wang ,  Jiafen Li ,  Xiaolin Qian ,  Xianguang Wang ,  Sheng Li ,  Liwei Ren ,  Changming Su ,  Zhifa Wang ,  Guichuan Liu ,  Bingzhong Shi

发明人： Xiaohua YANG ,  Lin Wang ,  Jiafen Li ,  Xiaolin Qian ,  Xianguang Wang ,  Sheng Li ,  Liwei Ren ,  Changming Su ,  Zhifa Wang ,  Guichuan Liu ,  Bingzhong Shi

IPC分类号： C09K8/12 ,  C08F230/04

CPC分类号： C08F230/04 ,  C09K8/12

摘要： A copolymer and preparation method and application thereof are disclosed. The copolymer is random copolymer obtained from monomers consisting of acrylamide, acrylic acid, alkenyl sulfonate, 2-acrylamido-dodecyl sulfonate, p-styrene sulfonate or isoprene sulfonate and so on. The copolymer of present invention can be used as fluid loss additive and has good fluid loss properties, which would not make the drilling fluid thicken at high temperature of 200° C. and high salt conditions of saturated brine. It has a medium-pressure fluid loss after aging and rolling for 16 h at high temperature of 200° C., as measured in accordance with the American Petroleum Institute Standard Test at room temperature, and has good properties of high temperature-resisting and salt-resisting.

摘要翻译： 公开了共聚物及其制备方法和应用。 共聚物是由丙烯酰胺，丙烯酸，链烯基磺酸酯，2-丙烯酰氨基 - 十二烷基磺酸酯，对苯乙烯磺酸酯或异戊二烯磺酸酯等单体组成的无规共聚物。 本发明的共聚物可用作流体损失添加剂，具有良好的流体损失性能，不会使钻井液在200℃的高温和饱和盐水的高盐条件下变稠。 根据美国石油学会标准试验在室温下测量，在200℃的高温下老化和轧制16小时后，中压流体损失具有良好的耐高温和耐盐性能 保留。

公开(公告)号：US08623791B2

公开(公告)日：2014-01-07

申请号：US13244102

申请日：2011-09-23

申请人： Xiaohua Yang ,  Lin Wang ,  Jiafen Li ,  Xiaolin Qian ,  Xianguang Wang ,  Sheng Li ,  Liwei Ren ,  Changming Su ,  Zhifa Wang ,  Guichuan Liu ,  Bingzhong Shi

发明人： Xiaohua Yang ,  Lin Wang ,  Jiafen Li ,  Xiaolin Qian ,  Xianguang Wang ,  Sheng Li ,  Liwei Ren ,  Changming Su ,  Zhifa Wang ,  Guichuan Liu ,  Bingzhong Shi

IPC分类号： C09K8/12 ,  C09K8/32 ,  C09K8/588

CPC分类号： C08F230/04 ,  C09K8/12

摘要： A copolymer and preparation method and application thereof are disclosed. The copolymer is random copolymer obtained from monomers consisting of acrylamide, acrylic acid, alkenyl sulfonate, 2-acrylamido-dodecyl sulfonate, p-styrene sulfonate or isoprene sulfonate and so on. The copolymer of present invention can be used as fluid loss additive and has good fluid loss properties, which would not make the drilling fluid thicken at high temperature of 200° C. and high salt conditions of saturated brine. It has a medium-pressure fluid loss after aging and rolling for 16 h at high temperature of 200° C., as measured in accordance with the American Petroleum Institute Standard Test at room temperature, and has good properties of high temperature-resisting and salt-resisting.

摘要翻译： 公开了共聚物及其制备方法和应用。 共聚物是由丙烯酰胺，丙烯酸，链烯基磺酸酯，2-丙烯酰氨基 - 十二烷基磺酸酯，对苯乙烯磺酸酯或异戊二烯磺酸酯等单体组成的无规共聚物。 本发明的共聚物可用作流体损失添加剂，具有良好的流体损失性能，不会使钻井液在200℃的高温和饱和盐水的高盐条件下变稠。 根据美国石油学会标准试验在室温下测量，在200℃的高温下老化和轧制16小时后，中压流体损失具有良好的耐高温和耐盐性能 保留。