西安石油大学学报（自然科学版）2018，Vol.33Issue(3)：57-62,6.DOI:10.3969/j.issn.1673-064X.2018.03.009
致密砂岩储层支撑剂粒径优选研究
Optimization of Proppant Particle Size for Tight Sandstone Reservoir
摘要
Abstract
The tight sandstone reservoirs in Keshen block of Tarim Oilfield are characterized by ultra depth,high temperature,high pressure and low permeability,and the particle size of proppant has a great influence on the productivity of hydraulic fracturing fractures.The influences of fracture closing time,gel-breaking liquid,proppant particle size and different size mixing proppant on the seep-age capacity of fracturing fracture with proppant were evaluated by means of the latest equipment FCS-842.The experimental fracture is composed of two rock plates which are processed by a full diameter core of formation condition.The experimental results show that,the seepage capacity of fracture is stable after the fracture is closed 24 h;the seepage capacity of fracture with single particle size of prop-pant increases with the increase of particle size of proppant,and the seepage capacity of fracture with combinatorial particle size of prop-pant are controlled mainly by small particle size of proppant;gel-breaking liquid entering the fracture makes the seepage capacity of the supported fracture reduced by 32% on the average.The empirical formula of fracture seepage capacity fitted based on experimental data can accurately predict the seepage capacity of fracture with combinatorial particle size of proppant.According to the proppant optimization principle in this paper,the characteristics of Kuche mountain front reservoir and site construction conditions,the combinatorial proppant which is composed of 30 /50 mesh or 40 /70 mesh of mass ratio 1:1 is recommended for the hydraulic fraturing of the study ar-ea.关键词
致密砂岩油藏/水力压裂/支撑剂优选/导流能力Key words
tight sandstone reservoir/hydraulic fracturing/optimization of proppant/seepage capacity分类
能源科技引用本文复制引用
赵亚兵,周福建,宋梓语,梁星原,黄怡潇..致密砂岩储层支撑剂粒径优选研究[J].西安石油大学学报（自然科学版）,2018,33(3):57-62,6.基金项目
"十三·五"国家科技重大专项"库车坳陷深层-超深层天然气田开发示范工程"(016ZX05051003) （016ZX05051003）
