CAJ | 학술논문

通过哈南油田岩芯裂缝古地磁定向，确定了裂缝发育方向。鉴定了121块微裂缝薄片，分析了微裂缝与大裂缝关系。作了一个井组的示踪剂实验，检测裂缝与断层导水形式。在此基础上，分析了前人的地震、钻井断层解释，以及动态资料，认为哈南油田阿尔善油藏断裂系统是NE向断层(包括裂缝)与NW向裂缝组成的一组共轭断裂系统。发现断裂系统导水严重，断裂发育区水进速度约为40～100m/d。断层面导水、断层对接导水致使注采层系混乱，形成上层注下层采或下层注上层采的非同层注采局面。同时部分油井憋压过高，部分油井暴性水淹。针对油田断裂系统特征，提出了应对措施：导水断层附近注水井井距加大；在断层面充水情况下，断层附近注水井适当减少注入量或采用脉冲式注水；针对层系之间串水现象，调整开发层系。
통과합남유전암심렬봉고지자정향，학정료렬봉발육방향。감정료121괴미렬봉박편，분석료미렬봉여대렬봉관계。작료일개정조적시종제실험，검측렬봉여단층도수형식。재차기출상，분석료전인적지진、찬정단층해석，이급동태자료，인위합남유전아이선유장단렬계통시NE향단층(포괄렬봉)여NW향렬봉조성적일조공액단렬계통。발현단렬계통도수엄중，단렬발육구수진속도약위40～100m/d。단층면도수、단층대접도수치사주채층계혼란，형성상층주하층채혹하층주상층채적비동층주채국면。동시부분유정별압과고，부분유정폭성수엄。침대유전단렬계통특정，제출료응대조시：도수단층부근주수정정거가대；재단층면충수정황하，단층부근주수정괄당감소주입량혹채용맥충식주수；침대층계지간천수현상，조정개발층계。
The directions of fractures in Hanan Olifield are determined bypaleomagnetic method.121 micro-fracture slices are identified to analyze the relationship between micro-and macro-fractures.The tracer experiment of a well group is done to detect the water transmission fractures and faults.Based on the data of seism,drilling interpetation in faults and the performance data,a conclusion is drawn that in the fault system of Aershan Reservoir,NE strike faults and NW strike fractures are conjugated.The transmissibility of the fault system is so serious that the inflow rate in fault-developed areas is 40-100 m/d.The effects of tansmissibility resulted in the confusion of the injection-production layers,thus forming injection-production in different layers.On the same time,some production wells are of high pressure and flooded.According to the characteristics of the fault system,corresponding contermeasure is put forward.