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1. 发明授权

US06920928B1 Method for water control 有权
标题翻译：水控制方法
公开(公告)号：US06920928B1
公开(公告)日：2005-07-26
申请号：US09647272
申请日：1999-03-25
申请人： Stephen N. Davies , Timothy G. J. Jones , Silke Olthoff , Gary J. Tustin
发明人： Stephen N. Davies , Timothy G. J. Jones , Silke Olthoff , Gary J. Tustin
IPC分类号： C09K8/512 , E21B43/32 , E21B33/13
CPC分类号： C09K8/512 , E21B43/32
摘要： A method to reduce water influx into a producing well is described comprising the steps of pumping a chemical composition into a production interval and into surrounding formation; said composition being capable of forming, firstly, a physically stabilized structure and, secondly, a chemically stabilized structure, wherein said physically stabilized structure being dissolvable by hydrocarbon containing fluids; letting said composition form said physically stabilized structure within the formation surrounding said production interval; changing pressure condition in said production interval such that the fluid flow within the surrounding formation is reversed; letting thereby in some portions of the formation hydrocarbon containing fluids dissolve said physically stabilized structure and chemically stabilize said structure in the remaining portions by a cross-linking reaction. The time constants of the two stabilizing reactions are selected such that the physical stabilization is essentially completed before the pumping direction is reversed and the chemical stabilization is essentially completed after the pump-out/cleaning operation.
摘要翻译：描述了一种减少水流入生产井的方法，包括将化学组合物泵送到生产间隔和周围地层中的步骤; 所述组合物能够首先形成物理稳定的结构，其次是化学稳定的结构，其中所述物理稳定的结构可以被含烃流体溶解; 使所述组合物在围绕所述生产间隔的地层内形成所述物理稳定的结构; 在所述生产间隔内改变压力条件，使得周围地层内的流体流动相反; 从而在地层含烃流体的一些部分中使所述物理稳定的结构溶解并通过交联反应化学稳定其余部分中的所述结构。选择两个稳定反应的时间常数使得物理稳定性在泵送方向反转之前基本上完成，并且在抽出/清洗操作之后化学稳定性基本上完成。

2. 发明授权

US06177483B1 Setting composition for well operations 有权
标题翻译：设置井作业的组成
公开(公告)号：US06177483B1
公开(公告)日：2001-01-23
申请号：US09269994
申请日：1999-05-25
申请人： Mostafa A Tehrani , Stephen N Davies , Geoffrey C Maitland
发明人： Mostafa A Tehrani , Stephen N Davies , Geoffrey C Maitland
IPC分类号： C08J300
CPC分类号： C09K8/5083
摘要： A composition and uses of said composition are described for a latex based setting system for remedial and other operations within a wit bore. The composition comprises a pH-reducing agent and/or a coagulant. By controlling the amount of agent, the setting time of the system can be controlled in a range of 0.5 h to 15 h.
摘要翻译：所述组合物的组合物和用途描述了用于乳胶的凝固系统，用于机械孔内的补救和其它操作。该组合物包含pH降低剂和/或凝结剂。通过控制剂量，系统的凝固时间可以控制在0.5 h〜15 h的范围内。

3. 发明授权

US06433075B1 Surfactant based gelling composition for wellbore service fluids 有权
标题翻译：用于井眼服务液的基于表面活性剂的胶凝组合物
公开(公告)号：US06433075B1
公开(公告)日：2002-08-13
申请号：US09647274
申请日：2000-11-20
申请人： Stephen N. Davies , Timothy G. J. Jones , Gary J. Tustin
发明人： Stephen N. Davies , Timothy G. J. Jones , Gary J. Tustin
IPC分类号： C08L3300
CPC分类号： C09K8/5756 , C09K8/5753
摘要： A composition, in particular a wellbore service fluid, comprising monomeric surfactants, preferably viscoelastic surfactants, in combination with a polymerization agent. Additionally, the fluid may contain a cross-linking agent to cross-link the polymerized surfactants.
摘要翻译：包含单体表面活性剂，优选粘弹性表面活性剂，与聚合剂组合的组合物，特别是井眼服务流体。此外，流体可以含有交联剂以交联聚合的表面活性剂。

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