摘要
在对国内外“水压裂”技术调研的基础上，结合长庆超低渗透储层特点，提出了“水压裂”＋超低密度支撑剂的压裂改造技术思路，并进行了适应性分析，初步开展了室内评价实验。分析结果表明，“水压裂”＋超低密度支撑剂技术．可以降低压裂液对储层和裂缝导流能力的伤害，降低施工成本，提高增产效果，是超低渗透油藏增产改造的发展方向．
On the basis of ＂Water-Fracs＂ technology investigation home and abroad, the fracturing technical ideas of ＂Water-Fraes＂ technology with ULW proppant is proposed in combination with Changqing extra low permeability reservoirs features. Furthermore, adaptability analysis is proceeded and preliminary lahoratory evaluation is done in this paper. The results show that： ＂Water-Fracs＂ technology with ULW proppant can reduce the damage of the fracturing fluids to reservoirs and fracture conductivity, the mining cost is reduced and stimulation result is enhanced moreover. ＂Water-Fracs＂ technology with ULW proppant become the development direction of stimulation in extra low permeability reservoirs.
基金
国家科技重大专项“大型油气田及煤层气开发：鄂尔多斯盆地大型岩性地层油气藏勘探开发示范工程（编号：2008ZX05044）”资助.
关键词
“水压裂”
超低渗透油藏
导流能力
超低密度支撑剂
＂water-fracturing＂
ultra-low permeability reservoirs
flow conductivity
ULW proppant
partial single zone compaction
laboratory evaluation
