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SLURRY COMPOSITION FOR EXCAVATION OF GEOTHERMAL WELL, AND EXCAVATION OF GEOTHERMAL WELL

机译：地热井开挖的淤泥组成及地热井的开挖

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摘要

PROBLEM TO BE SOLVED: To provide a slurry composition for excavation of geothermal wells, having stable slurry characteristics and stably keeping its function for the excavation for extended periods at a bed temperature of 250 to 350°C in a well, and also to provide a method for excavating geothermal wells. ;SOLUTION: This slurry composition is basically composed of natural bentonite either individually or in combination with synthetic smectite and/or synthetic mica, suspended in water, wherein the basic composition is incorporated with dispersant and thickening aid to allow the slurry composition to stably exhibit slurry function at high temperature of 250°C or higher, and to be changed depending on bed temperature.;COPYRIGHT: (C)2000,JPO

机译：要解决的问题：提供一种用于地热井开挖的浆液组合物，该浆液组合物具有稳定的浆液特性，并在250-350°C的床层温度下稳定地保持其在挖掘中的作用延长的时间，并且提供一种地热井开挖方法。 ;解决方案：该浆料组合物基本上由天然膨润土组成，可单独或与合成蒙皂石和/或合成云母混合，悬浮在水中，其中将基本组合物与分散剂和增稠助剂混合，以使浆料组合物稳定地呈现浆料可在250°C或更高的高温下运行，并根据床温进行更改。;版权所有：（C）2000，JPO

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公开/公告号JP2000282020A

专利类型
公开/公告日2000-10-10

原文格式PDF
申请/专利权人 TERUNAITO:KK;
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申请/专利号JP19990090629
发明设计人 KUWABARA JIYOUJI;YOSHII MITSURU;
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申请日1999-03-31
分类号C09K7/00;C09K7/02;E21B43/00;
国家 JP
入库时间 2022-08-22 01:59:05

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