科学技术与工程
科學技術與工程
과학기술여공정
SCIENCE TECHNOLOGY AND ENGINEERING
2015年
24期
46-51
,共6页
体积压裂%流固耦合%天然裂缝%裂缝扩展%致密砂岩气藏
體積壓裂%流固耦閤%天然裂縫%裂縫擴展%緻密砂巖氣藏
체적압렬%류고우합%천연렬봉%렬봉확전%치밀사암기장
volume fracturing%fluid-solid coupling natural%fracture fracture propagation%tight sand-stone gas reservoir
体积压裂技术为致密砂岩气藏大规模经济有效开发提供了新的途径。为了分析裂缝在体积改造中的分布和扩展规律，基于鄂尔多斯盆地苏53区块储层特征和渗流-应力耦合理论，采用RFPA-flow软件建立了储集层砂岩体的流固耦合模型，模拟分析了引导裂纹、天然裂缝、围压对体积压裂中裂缝扩展的影响。然后通过对比区块内体积压裂井、普通压裂井和未压裂井的实施效果，体现出体积压裂在致密砂岩气藏开发中的明显优势。
體積壓裂技術為緻密砂巖氣藏大規模經濟有效開髮提供瞭新的途徑。為瞭分析裂縫在體積改造中的分佈和擴展規律，基于鄂爾多斯盆地囌53區塊儲層特徵和滲流-應力耦閤理論，採用RFPA-flow軟件建立瞭儲集層砂巖體的流固耦閤模型，模擬分析瞭引導裂紋、天然裂縫、圍壓對體積壓裂中裂縫擴展的影響。然後通過對比區塊內體積壓裂井、普通壓裂井和未壓裂井的實施效果，體現齣體積壓裂在緻密砂巖氣藏開髮中的明顯優勢。
체적압렬기술위치밀사암기장대규모경제유효개발제공료신적도경。위료분석렬봉재체적개조중적분포화확전규률，기우악이다사분지소53구괴저층특정화삼류-응력우합이론，채용RFPA-flow연건건립료저집층사암체적류고우합모형，모의분석료인도렬문、천연렬봉、위압대체적압렬중렬봉확전적영향。연후통과대비구괴내체적압렬정、보통압렬정화미압렬정적실시효과，체현출체적압렬재치밀사암기장개발중적명현우세。
The volume fracturing provides a new light for large-scale economic and effective development of tight sandstone gas reservoir.In order to analyze the fracture distribution and propagation laws during the volume fractu-ring, fluid-solid coupling models of the sandstone body were established with the RFPA-flow code based on the re-gional reservoir characteristics in Block Su53, Ordos basin and seepage-stress coupling theory.Then, the effects of guide fracture, natural fracture, and confining pressure on the fracture propagation were simulated with the pro-posed models during the volume fracturing.Comparing volume fractured wells with common fractured wells and without fractured wells, technology advantages of volume fracturing show up.
