摘要
随着石油勘探精细化进程的加快,如何寻找碎屑岩中的优质储集层,已成为现阶段勘探开发要解决的首要问题,由于常规储集层分析仅注重对分析化验资料的统计归纳,受分析化验资料的精度所限,预测的有利储集区带范围较大,无法达到精细勘探的要求。为此,以歧北斜坡区沙三2亚段为例,将分析化验数据与测井资料相结合,依据分析化验资料确定不同类型储集层,通过归纳不同类型储集层的测井响应特征,形成满足精细勘探需求的储集层评价标准,进而实现利用测井资料完成多井碎屑岩储集层识别评价。最终研究认为,歧北中高斜坡扇三角洲与辫状河三角洲前缘砂体是优质储集体发育带,低斜坡区远岸水下扇主沟道砂体也是优质储集体发育带,从而为歧北斜坡区下步精细勘探开发提供了有力依据。
With the acceleration of the fine process of oil exploration,how to find the high quality reservoirs in clastic rocks has become the primary problem to be solved in exploration and development at the present stage.Because conventional reservoir analysis only focuses on the statistical induction of analytical and laboratory data,limited by the abundance of analytical and laboratory data,the favorable reservoir zone predicted has a wide range and can not meet the requirements of fine exploration.Therefore,taking the second sub-member of the third member of Shahejie formation in Qibei slope area as an example,the analysis and testing data were combined with log information,the different types of reservoirs were determined based on the analysis and testing data.By summing up the log response characteristics of different types of reservoirs,the reservoir evaluation criteria that meet the fine exploration needs are formed,and the identification and evaluation of multi-well clastic reservoirs can be realized with log information.Finally,it is concluded that the front sand bodies of fan delta and braided river delta in Qibei middle and high slopes are high-quality reservoir development zones,and the main culvert sand bodies of the far-shore subaqueous fan in the low-slope area are also a high-quality reservoir development zones,which provides a powerful basis for further fine exploration and development in Qibei slope area.
作者
颜崇安
汪晓敏
郭青松
胡秀军
吴永利
张玉峰
王智
Yan Chong′an;Wang Xiaomin;Guo Qingsong;Hu Xiujun;Wu Yongli;Zhang Yufeng;Wang Zhi
出处
《录井工程》
2019年第3期99-105,188,共8页
Mud Logging Engineering
关键词
碎屑岩储集层
沙三
2亚段
测井评价
歧口凹陷
clastic reservoir
the second sub-member of the third member of Shahejie formation
well logging evaluation
Qikou sag
