CAJ | 학술논문

维宪阶是Kotosky油田的主力含油层系.根据岩心分析化验、测井及其它相关地质资料,对维宪阶储层进行研究.结果表明,维宪阶属潮汐三角洲沉积,该套储层储集空间以原生粒间孔为主,储层物性较好,孔隙度与渗透率呈明显的正相关,各油层渗透率变异因数为0.42～1.62,突进因数为1.87～6.69.同时,储层分布明显受沉积微相的控制,其中最有利储层发育的微相为砂脊,其次为潮道、砂坪.综合分析储层各项参数,将维宪阶储层各小层评价划分4个级别,其中C1-V、C1-VI小层为有利开发层段,是今后增储上产的首选储层.
유헌계시Kotosky유전적주력함유층계.근거암심분석화험、측정급기타상관지질자료,대유헌계저층진행연구.결과표명,유헌계속조석삼각주침적,해투저층저집공간이원생립간공위주,저층물성교호,공극도여삼투솔정명현적정상관,각유층삼투솔변이인수위0.42～1.62,돌진인수위1.87～6.69.동시,저층분포명현수침적미상적공제,기중최유리저층발육적미상위사척,기차위조도、사평.종합분석저층각항삼수,장유헌계저층각소층평개화분4개급별,기중C1-V、C1-VI소층위유리개발층단,시금후증저상산적수선저층.
Visean-order is the main oil-line of Kotosky oilfield, according to laboratory core analysis, logging and other relevant geological information, we carried out a study of reservoir of Visean-order. The results show that the Visean-order belongs to tidal delta deposits, the reservoir space is original tablets of the main hole, good reservoir properties, porosity and permeability is positively related. Variation factor of the reservoir permeability is 0.42～1.62, penetration factor is 1.87～6.69. At the same time, the distribution of reservoir is significantly affected by sedimentary microfacies control. One of the most beneficial to the development of micro-phase reservoir is for the sand ridge, followed by tidal channel, sand Ping. The parameters of comprehensive analysis of reservoir, Visean-order reservoir will be a small layer of the four-level evaluation of division, of which C1-Ⅴ, C1-Ⅵ layers are beneficial to the development of a small layer.In the future, they will be the preferred storage reservoir.