类泡沫压裂液在陵72井区的应用前景探讨

Investigation into Application Prospect of Simu-Foam Fracturing Fluid in Ling-72 Well Block

类泡沫压裂液体系具有常规压裂液和泡沫压裂液的优点,在地面为液态状,施工时与常规压裂相同,注入地层后自动发泡形成类似泡沫压裂液的混合物,同时具有良好的携砂性能、降滤失性能、无残渣、低伤害性能。类泡沫压裂液在陵72井区14井次的压裂实践中,工艺成功率为92.3%,措施有效率为71.4%,累计增油23 125.8t。实践表明,类泡沫压裂液可用于江汉油田新沟嘴组油藏的储层改造。

Possessing the merits of both regular fracturing fluid and foam fracturing fluid, simu-foam fracturing fluid system takes on liquid state on the surface and use the same fracturing method as the conventional fracturing. Once it is injected into the formation, it foams automatically to form a mixture which is similar to foam fracturing fluid, having good properties of sand transportation, filtration reduction, no residue and low damage. In fourteen fracturing practices in Ling-72 Wellblock by using simu-foam fracturing fluid, technological success ratio reaches 92. 3% and measure effective rate 71.4% with accumulated oil increasing 23 125. 8 t. All this shows that simu-foam fracturing fluid can be applied to Xingouzui reservoir in Jianghan Oilfield as its reservoir reform.