耐高温压裂液及其添加剂研究进展

Research Progress of High Temperature Resistant Fracturing Fluid System and Additives

我国在深层油气井高效勘探开发方面取得了显著进步,储层改造作为高温深层勘探开发核心“利器”,对压裂液提出了强劲需求。高温油气田储层水力压裂的液体体系主要分为两种:天然生物胶压裂液和人工合成高分子压裂液。耐高温压裂液体系主要由耐高温稠化剂、耐高温交联剂和温度稳定助剂等添加剂组成。基于室内研究与大量文献基础上,综述了近年来耐高温压裂液体系、耐高温稠化剂、耐高温交联剂和温度稳定助剂在我国的研究应用和最新进展,指出了目前使用的耐高温压裂液存在的缺点和局限性,提出了开发耐高温压裂液技术的技术方向建议。

China has made significant progress in the efficient exploration and development of deep-seated oil and gas wells. Reservoir reformation, as the core "weapon" of high-temperature deep-seated exploration and development, puts forward a strong demand for fracturing fluids. The ultra-high temperature fracturing fluid system developed in my country is mainly divided into two types: ultra-high temperature guar gum fracturing fluid and ultra-high temperature synthetic polyacrylamide fracturing fluid. The high temperature resistant fracturing fluid system is mainly composed of high temperature resistant thickener, high temperature resistant crosslinking agent and temperature stabilizing additives and other additives. Based on indoor research and a large amount of literatures, the research and application of high temperature resistant fracturing fluid system, high temperature resistant thickener, high temperature resistant crosslinking agent and temperature stabilizing additives in my country in recent years were summarized, and shortcomings and limitations of the high-temperature resistant fracturing fluid were pointed out, the technical direction of the development of high-temperature resistant fracturing fluid technology was proposed.