用于防止井眼处理液损失的化学封堵物
阅读说明:本技术 用于防止井眼处理液损失的化学封堵物 (Chemical plug for preventing loss of wellbore treatment fluid ) 是由 拉金德拉·阿伦库马·卡尔冈卡 韦克兰特·巴瓦尼珊卡·韦格尔 阿卜杜拉·萨利赫·侯赛因·阿勒-亚米 于 2018-04-25 设计创作,主要内容包括:堵漏材料包含水性胶体分散体和脂肪酸的混合物。水性胶体分散体包含二氧化硅纳米粒子并且具有至少8的pH。胶体分散体和脂肪酸的合并在堵漏材料的pH小于8并且堵漏材料的温度在5℃至300℃的范围内时引发堵漏材料的凝胶化。将在井眼的一部分或其中形成井眼的地下地层的一部分中的开口密封可以包括向井眼提供水性胶体分散体和脂肪酸,将胶体分散体和脂肪酸混合以得到堵漏材料,引发堵漏材料的凝胶化,和使在井眼中的堵漏材料凝固以得到凝结凝胶。(The lost circulation material comprises a mixture of an aqueous colloidal dispersion and a fatty acid. The aqueous colloidal dispersion comprises silica nanoparticles and has a pH of at least 8. The combination of the colloidal dispersion and the fatty acid induces gelation of the lost circulation material when the pH of the lost circulation material is less than 8 and the temperature of the lost circulation material is in the range of 5 ℃ to 300 ℃. Sealing an opening in a portion of a wellbore or a portion of a subterranean formation in which the wellbore is formed may include providing an aqueous colloidal dispersion and a fatty acid to the wellbore, mixing the colloidal dispersion and the fatty acid to obtain a lost circulation material, initiating gelation of the lost circulation material, and allowing the lost circulation material in the wellbore to solidify to obtain a coagulated gel.)