CAJ | 학술논문

储层非均质性直接影响着砂层内油气的动用程度。通过测井、录井和测试分析资料，对延气2井区盒8段储层非均质性进行了深入讨论。研究区盒8段层内非均质性特征包括两类：垂向加积多河道叠置砂体呈现的正韵律，以及进积的河口坝砂体呈现的反韵律非均质特征，盒8下层内非均质性更强。层间隔层以盒8上亚段更发育。平面上储层特征存在东、西差异，砂体以东部、东南部最为发育。综合分析认为：盒8下部砂层组，以及盒8上部河口坝砂层顶部为研究区最有利储层段，且这些连通性能很好的高孔、高渗带集中分布在研究区中部，开发中要特别注意多变韵律层内的含水动态监测，并以南部为下步重点扩边方向。
저층비균질성직접영향착사층내유기적동용정도。통과측정、록정화측시분석자료，대연기2정구합8단저층비균질성진행료심입토론。연구구합8단층내비균질성특정포괄량류：수향가적다하도첩치사체정현적정운률，이급진적적하구패사체정현적반운률비균질특정，합8하층내비균질성경강。층간격층이합8상아단경발육。평면상저층특정존재동、서차이，사체이동부、동남부최위발육。종합분석인위：합8하부사층조，이급합8상부하구패사층정부위연구구최유리저층단，차저사련통성능흔호적고공、고삼대집중분포재연구구중부，개발중요특별주의다변운률층내적함수동태감측，병이남부위하보중점확변방향。
Reservoir heterogeneity directly affects the reservoir producing degree. Therefore,this paper intends to make a depth analysis of heterogeneity in the 8th member of the Shihezi formation,by using well logging,mud log-ging information and core analysis data. According to the analysis,multiple channel vertical deposited sandstone reservoir with positive rhythm,mouth bar sand with reverse rhythm mainly,which is the two types in He8 forma-tion,the heterogeneity is stronger in the upper part of he8 formation. Meanwhile,the restraining barrier is more de-veloped in the lower part of He8 formation. In addition,the reservoir characteristics presents the east-west differ-ence in a plane,with the sand is most developed in the east,southeast area. To sum up,the sandstone in lower part and the top of mouth bar sand in upper part of he8 formation is the most favorable place,with high porosity and per-meability,is good connectivity,concentrated in the middle of the study area. Further more,we should pay special attention to the water dynamic monitoring of polytropic rhythmic layer,and southern of the area is the further expan-sion direction.