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31. 发明授权

US07169738B2 Method of using a sized barite as a weighting agent for drilling fluids 有权
标题翻译：使用大小重晶石作为钻井液加重剂的方法
公开(公告)号：US07169738B2
公开(公告)日：2007-01-30
申请号：US11145053
申请日：2005-06-03
申请人： Jarrod Massam , Neale Browne , Mukesh Kaplla
发明人： Jarrod Massam , Neale Browne , Mukesh Kaplla
IPC分类号： C09K8/03
CPC分类号： C09K8/16 , C04B20/1022 , C09K8/032 , C09K8/36 , Y10S507/906
摘要： An additive that increases the density of fluids containing a sized barite weighting agent. The wellbore fluid has rheological properties comparable to a conventional wellbore fluids but does not exhibit problems with sag and resulting variations in density. An illustrative embodiment is directed to a method for making the sized barite weighting agent and a method for using such sized barite weighting agent in a wellbore fluid. In one preferred embodiment the sized barite weighting agent has a particle diameter between 4 μm to 15 μm In another preferred embodiment, the additive has a D50 (by weight) of approximately 1 μm to 6 μm. In another preferred embodiment the additive has a D90 (by weight) of approximately 4 μm to 8 μm. The additive may be used in any wellbore fluid such as drilling, cementing, completion, packing, work-over (repairing), stimulation, well killing, and spacer fluid.
摘要翻译：添加剂，其增加含有大小重晶粒重量的流体的密度。井筒流体具有与常规井眼流体相当的流变特性，但不会出现下垂和由此导致的密度变化的问题。说明性实施例涉及一种用于制造大小重晶块的方法以及在井筒流体中使用这种尺寸重晶块的方法。在一个优选实施方案中，所述大小的重晶剂的粒径在4μm至15μm之间。在另一个优选的实施方案中，添加剂的D 50重量％为约1至6μm。在另一个优选的实施方案中，添加剂具有约4μm至8μm的D重量％（重量）。该添加剂可用于任何井筒流体，如钻井，固井，完井，填料，加工（修复），刺激，杀伤和间隔液。

32. 发明申请

US20050277553A1 Sized barite as a weighting agent for drilling fluids 有权
标题翻译：尺寸重晶石作为钻井液的增重剂
公开(公告)号：US20050277553A1
公开(公告)日：2005-12-15
申请号：US11145259
申请日：2005-06-03
申请人： Jarrod Massam , Neale Browne , Mukesh Kapilla
发明人： Jarrod Massam , Neale Browne , Mukesh Kapilla
IPC分类号： C09K7/00
CPC分类号： C09K8/16 , C04B20/1022 , C09K8/032 , C09K8/36 , Y10S507/906
摘要： An additive that increases the density of fluids used in a wellbore during the construction or repair of oil, gas, injection, water, or geothermal wells comprises a wellbore fluid containing a sized barite weighting agent that has an increased density with improved suspension stability without a significant viscosity increase. The wellbore fluid as described herein has rheological properties comparable to a conventional wellbore fluids but does not exhibit problems with sag and resulting variations in density. An illustrative embodiment of the claimed subject matter is further directed to a method for making the sized barite weighting agent and a method for using such sized barite weighting agent in a wellbore fluid. In one preferred embodiment the sized barite weighting agent has a particle diameter between 4 μm to 15 μm. In another preferred embodiment, the additive has a D50 (by weight) of approximately 1 μm to 6 μm. In another preferred embodiment the additive has a D90 (by weight) of approximately 4 μm to 8 μm. The additive may be used in any wellbore fluid such as drilling, cementing, completion, packing, work-over (repairing), stimulation, well killing, and spacer fluid.
摘要翻译：在石油，天然气，注入，水或地热井的建造或修复期间增加在井眼中使用的流体密度的添加剂包括含有大小重晶体的井眼流体，其具有增加的密度并且具有改善的悬浮稳定性，而没有显着的粘度增加。如本文所述的井筒流体具有与常规井眼流体相当的流变性质，但是不会出现下垂和由此导致的密度变化的问题。所要求保护的主题的说明性实施例进一步涉及一种用于制造大小重晶块加重剂的方法和在井眼流体中使用这种尺寸重晶粒剂的方法。在一个优选实施方案中，所述大小的重晶重量计具有4μm至15μm之间的粒径。在另一个优选的实施方案中，添加剂的D 50重量％（重量）为大约1至6微米。在另一个优选的实施方案中，添加剂具有约4μm至8μm的D重量％（重量）。该添加剂可用于任何井筒流体，如钻井，固井，完井，填料，加工（修复），刺激，杀伤和间隔液。

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