摘要
通过室内研究,优选出适用于抗高温海水无黏土相钻井液的增黏剂、降滤失剂、润滑剂和防塌抑制剂等,研制了抗高温海水无黏土相钻井液。其性能评价结果表明:该海水无黏土相钻井液耐温达150℃,同时具有较好的抗膨润土污染能力,润滑性和防塌性较好;体系易于控制,能有效减少井下事故的发生,提高钻进速度;岩心渗透率恢复率大于93%,具有较好的储层保护效果。
A high temperature seawater base clay-free drilling fluid system is developed based on the optimized additives,such as viscosifier,filtrate reducer,lubricant and inhibitor.The performance evaluation results show that drilling fluid system is stable at 150℃,provides high anti-pollution capacity of bentonite and good lubricating performance,moreover,the core penetration rate recovery rate is more than 90% that can protect reservoirs effectively.
出处
《钻井液与完井液》
CAS
北大核心
2012年第6期21-23,27,共4页
Drilling Fluid & Completion Fluid
基金
国家科技重大专项"煤层气井钻井关键技术研究"(2009ZX05060)
"储层保护机理及新技术研究"(2008ZX05002)资助
关键词
海水
无黏土相
钻井液
高温
性能评价
油气层保护
Seawater
Clay-free
Drilling fluid
High temperature
Performance evaluation
Reservoir protection