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1. 发明授权

US06308788B1 Conductive medium for openhole logging and logging while drilling 失效
标题翻译：用于裸眼测井和采伐的导电介质
公开(公告)号：US06308788B1
公开(公告)日：2001-10-30
申请号：US09514680
申请日：2000-02-28
申请人： Arvind D. Patel , Rejinald J. Bell , Burhan Hoxha
发明人： Arvind D. Patel , Rejinald J. Bell , Burhan Hoxha
IPC分类号： C09K706
CPC分类号： G01V3/20 , C09K8/32
摘要： A method of electrically logging subterranean wells using a conductive fluid in which the conductive fluid includes a miscible combination of an oleaginous fluid, a polar organic solvent, and an electrolytic salt. The electrolytic salt or brine of the salt is present in a concentration sufficient to permit the electrical logging of the subterranean well. The medium may further include gelling agent, weight material, surfactant, or corrosion inhibitors. The polar organic solvent may preferably be a oil soluble glycol or glycol ether such as ethylene glycol, diethylene glycol, propylene glycol, polypropylene glycol, and the like. The electrolytic salt or brine is preferably a quaternary amine salt having the formula: wherein R is an alkyl having 8 to 18 carbon atoms, R′ is 2 to 6 carbon atoms alkyl group, B is hydrogen, oxyalkyl having 1 to 4 carbon atoms or alkyl having 1 to 4 carbon atoms, A is hydrogen or alkyl with 1 to 4 carbon atoms, x+y=1 to 15, z is 0 to 3, and M− is a counter anion; or combinations thereof.
摘要翻译：一种使用导电流体对地下井进行电测井的方法，其中导电流体包括油性流体，极性有机溶剂和电解盐的可混合组合。盐的电解盐或盐水的存在浓度足以允许对地下井进行电测井。介质还可以包括胶凝剂，重量材料，表面活性剂或腐蚀抑制剂。极性有机溶剂可以优选为油溶性二醇或二醇醚，例如乙二醇，二甘醇，丙二醇，聚丙二醇等。电解盐或盐水优选为具有下式的季胺盐：其中R为具有8至18个碳原子的烷基，R'为2至6个碳原子的烷基，B为氢，具有1至4个碳原子的烷氧基烷基或具有1至4个碳原子的烷基，A是氢或具有1至4个碳原子的烷基，x + y = 1至15，z为0至3，M-为抗衡阴离子; 或其组合。

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