低渗致密气藏泡沫压裂液损害研究  

Study on damage of foam fracturing fluid for low permeability tight gas reservoirs

作　　者：张建军 ZHANG Jianjun(Key Laboratory of Coal Resources Exploration and Comprehensive Utilization,Ministry of Natural Resources,Xi’an 710021,China;Shaanxi 185 Coal Field Geology Co.,Ltd.,Yulin 719000,China)

机构地区：[1]自然资源部煤炭资源勘查与综合利用重点实验室,陕西西安710021 [2]陕西省一八五煤田地质有限公司,陕西榆林719000

出　　处：《能源化工》2022年第5期50-53,共4页Energy Chemical Industry

基　　金：陕西省自然科学基金项目(2021J LM-14)。

摘　　要：压裂液对支撑剂导流能力造成的损害程度极大地影响了压裂作业的有效性。研究了泡沫和非泡沫压裂液对支撑剂的裂缝的伤害效果。试验结果表明,非泡沫压裂液和泡沫压裂液对石英砂、轻质陶瓷支撑剂裂缝导流能力的损害率分别为72.3%,31.5%,64.8%,26.3%;在水力压裂过程中,泡沫压裂液对充填支撑剂的裂缝伤害较小,可以较好地维持合适的流变参数,保证支撑剂的持续悬浮能力,该试验方法可用于对致密气藏水力压裂液和支撑剂进行评价。The damage of fracturing fluid to proppant conductivity greatly affects the effectiveness of fracturing operation.In order to study the damage effect of foam and non-foam fracturing fluid on proppant fractures.The test results show that the damage rates of non-foam fracturing fluid and foam fracturing fluid to the fracture conductivity of quartz sand and light ceramic proppant are 72.3%,31.5%,64.8%and 26.3%respectively.In the process of hydraulic fracturing,the foam fracturing fluid has little damage to the fractures filled with proppant,which can better maintain appropriate rheological parameters and ensure the continuous suspension capacity of proppant.This method can be used to evaluate the hydraulic fracturing fluid and proppant for tight gas reservoirs.

关 键 词：泡沫压裂液 泡沫流变学 裂缝导流能力 储层增产 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]