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胜坨油田三角洲储层岩石物理特征
引用本文:周建林,杨少春,郭玉新. 胜坨油田三角洲储层岩石物理特征[J]. 中国石油大学学报(自然科学版), 2002, 26(2)
作者姓名:周建林  杨少春  郭玉新
作者单位:1. 胜利石油管理局胜利采油厂,山东东营,257051
2. 石油大学地球资源与信息学院,山东东营,257061
3. 胜利石油管理局地质科学研究院,山东东营,257015
基金项目:中国石油天然气集团公司中青年创新基金资助 (W 0 0 0 12 0 )
摘    要:注水开发油田三角洲储层剩余油分布复杂 ,其主要原因是储层间不同微相及不同部位的岩石物理特征有明显差异。对胜坨油田二区沙河街组二段 7、8砂层组岩心及测井分析资料进行了研究 ,结果表明 ,随注水开发程度的提高 ,三角洲储层表现为强亲水性 ;不同微相及不同部位砂体的毛管压力差异明显 ,这种差异也是造成剩余油分布复杂的重要原因。储层的相对渗透率曲线交点平均值较大 ,形态不对称 ,油水两相共渗区跨度较小 ,这进一步印证了储层的强亲水润湿性。该研究结果对研究区剩余油的挖潜具有重要的指导意义

关 键 词:胜坨油田  三角洲储层  岩石物理特征  润湿性  毛管压力  相对渗透率  剩余油分布

Petrophysical characteristics of rock in delta reservoir of Shengtuo oilfield
ZHOU Jian lin,YANG Shao chun and GUO Yu xin. Shengli Production Plant of Shengli Oilfield,Dongying. Petrophysical characteristics of rock in delta reservoir of Shengtuo oilfield[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 2002, 26(2)
Authors:ZHOU Jian lin  YANG Shao chun  GUO Yu xin. Shengli Production Plant of Shengli Oilfield  Dongying
Affiliation:ZHOU Jian lin,YANG Shao chun and GUO Yu xin. Shengli Production Plant of Shengli Oilfield,Dongying 257051
Abstract:Remaining oil distribution of delta reservoirs in waterflooding oilfield is very complicated, which is resulted from the differences of petrophysical characteristics in different facies of reservoir. Taking 7 and 8 sand groups in the second district of Shengtuo oilfield as the examples, the data of core analysis in reservoir and petrophysical characteristics of rock have some influences on the distribution of remaining oil. The delta reservoir in this area is considered to have serious water wettability with continuous waterflooding development. The rock capillary in different facies sandbody and different position is obviously different, which brings about complicated distribution of remaining oil. The analysis of core and log data shows that average values of cross points on the relative permeability curves are higher, and shape of curves is irregular. There is littler span in common permeable region in oil and water phases. Therefore there is serious water wettability in delta reservoir in the area.
Keywords:Shengtuo oilfield  delta reservoir  petrophysical characteristics of rock  wettability  capillary pressure  relative permeability  remaining oil distribution  
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