可逆交联聚合物压裂液流变及悬砂性能研究

摘要

压裂液流变及悬砂性能是压裂施工成功最关键的因素，支撑剂在压裂液中的沉降速度衡量压裂液的悬砂性能。该研究以 SRFP-1增稠剂、SRFC-1交联剂、氯化钾工业品作为研究对象配制可逆交联聚合物压裂液 SRFP；评价了该压裂液体系在100~160℃流变性能；以20/40目陶粒为研究对象开展静态悬砂实验；采用单颗粒法和砂比法，考察了不同温度配方 SRFP 压裂液悬砂性能；最后对比了 SRFP 压裂液与3种不同厂家生产的聚合物压裂液的悬砂性能。%The rheological property and proppant-carrying capacity of fracturing fluid are key factors for successful fracturing. The settling velocity of suspended sand in fracturing fluid reflects the proppant-car-rying capacity of fracturing fluid,reversible cross-linking polymer SRFP fracturing fluid is prepared by SRFP-1 gelling,SRFC-1 cross-linker,and KCl products. The rheological properties of SRFP fracturing flu-id are evaluated under the conditions of 100 ~ 160 ℃. The static suspension experiments are carried out by 20 / 40 ceramic. Proppant-carrying capacity of different temperature formula for fracturing fluid is stud-ied by single-particle method and sand-ratio method. Proppant-carrying capacity of SRFP fracturing fluid and other different kinds of fracturing fluids is compared.