基岩水井水力压裂专用压裂液试验研究

Research on Hydraulic Fracturing Fluid in Bedrock Water Well

为了开发高粘、低滤失、抗水敏性好的基岩水井专用压裂液,通过胶凝剂、交联剂、破胶剂、防腐剂选配,以及配方试验等方法,确定了以田菁粉为主剂,辅以交联剂、防腐剂、破胶剂等添加剂的基岩水井水力压裂专用压裂液。该压裂液具有成本低、性能稳定、环保无污染等特点。作为基岩水井水力分段压裂技术的关键技术之一,压裂液研究为实现基岩水井水力分段压裂技术整体突破奠定了基础。同时,积累了针对不同岩性岩层压裂液研究的经验,供同行参考。

In order to develop fracturing fluid of water well with high viscosity, low filter loss, good sensitivity, through the cementing agent matching, crosslinking agent matching, gel breaker matching and preservative matching, as well as formula testing methods, according to Tian celadon powder, pepper konjak powder, hydroxypropyl base guar gum, Fenugreek Gum formula indoor test, we preferred the suitable for hydraulic fracturing of bedrock wells fracturing fluid and its proportion. Special fracturing fluid for hydraulic fracturing of bedrock water well is mainly used as main agent of field green powder, and auxiliary agent, antiseptic agent, gel breaking agent and other additives are used as auxiliary agent. The fracturing flu- id has the characteristics of low cost, stable performance, no pollution and so on. As one of the key technologies of the hy- draulic fracturing technology of the bedrock water well, the research of the fracturing fluid has laid the foundation for the re- alization of the hydraulic fracturing technology of the bedrock water well. At the same time, we have accumulated the expe- rience for the study of fracturing fluid for different lithologic rock formations. We hope to provide some reference for the research work in related fields.