摘要
研制出一种聚胺抑制剂XJA-1,以XJA-1、优选出的包被抑制剂SDE(相对低分子量阳离子聚丙烯酰胺)和封堵防塌剂(铝基聚合物HA-1)为主剂构建了聚胺水基钻井液。室内实验对3种主剂和钻井液的性能进行了评价,结果表明,XJA-1抑制泥页岩水化膨胀和分散的能力与国外同类产品Ultrahib接近,且在高温下的作用效果良好;SDE和HA-1能从不同方面抑制泥页岩的水化分散,综合增强钻井液的井壁稳定效果;该钻井液的抑制性和润滑性与油基钻井液接近,并具有较好的流变和滤失性能。该钻井液在TH10410CH2井成功进行了应用,有效解决了泥页岩水化导致的井壁失稳问题,提高了钻井效率,为复杂泥页岩钻井提供了新的技术对策。
The novel polyamine inhibitor XJA-1,encapsulating inhibitor SDE and sealing anti-sloughing agent are evaluated,based on that,the polyamine water-based drilling fluid is developed.The experimental results show that the inhibition of XJA-1 is close to Ultrahib,and inhibition and lubrication of the polyamine drilling fluid system is similar with oil-based drilling fluid system,and it has good performances of rheology and filtration.The application in TH10410CH2 is successful that it effectively solves the problem of wellbore instability caused by shale hydration.
出处
《钻井液与完井液》
CAS
北大核心
2013年第3期23-26,92-93,共4页
Drilling Fluid & Completion Fluid
基金
中国石化科技开发部项目"新型聚胺钻井液体系研究及应用"(P09004)
