摘要
应用岩石热解参数计算含油饱和度,一方面可及时获得储层含油性评价指标,另一方面可弥补测井在特殊层段无法获得含油饱和度的不足。在以往岩石热解分析评价含油饱和度方法的基础上,针对岩石热解分析参数中的S_(1)、S_(2)进行数据恢复,减小S_(1)、S_(2)参数的损失。在计算方法中引入原油体积系数,精确了含油饱和度计算结果。选取二连重点探区WLH凹陷、WLYST凹陷、BYDL凹陷进行实验数据分析,应用岩石热解分析参数S_(0)、S_(1)、S_(2)进行拟合计算,得出的储层含油饱和度与测井资料含油饱和度对比相差较小。与气测录井含油性解释评价方法相结合,建立岩石热解分析储层含油性评价图版及解释评价标准,达到对储层含油性综合评价的目的,提高解释评价符合率。
The oil-bearing saturation can be calculated by applying rock pyrolysis parameters.On the one hand,it can obtain the reservoir oil content evaluation index in time,and on the other hand,it can make up for the deficiency that the oil content saturation cannot be obtained in the special section of the logging well.Based on the previous method of rock pyrolysis analysis to evaluate oil content saturation,data recovery is carried out for S_(1)and S_(2)in rock pyrolysis analysis parameters,which can reduce the loss of S_(1)and S_(2)parameters.The crude oil volume factor is introduced into the calculation method,and the calculation result of oil saturation is accurate.The WLH sag,WLYST sag and BYDL sag are selected for the analysis of experimental data in Erlian key exploration areas.The rock pyrolysis analysis parameters S_(0),S_(1),S_(2)are used for fitting calculation,and the oil saturation of the obtained reservoir is relatively small in comparison with the oil saturation of the logging data.Combined with the oiliness interpretation and evaluation method of gas logging,the oiliness evaluation chart and interpretation evaluation standard of the rock pyrolysis analysis reservoir are established.Ultimately,the purpose of comprehensive evaluation of reservoir oil content is achieved,and the interpretation and evaluation rate is improved.
作者
姚忠东
侯庆林
陈玉蓉
黄俊莲
黄琴
侯玉花
丁孟虹
Yao Zhongdong;Hou Qinglin;Chen Yurong;Huang Junlian;Huang Qin;Hou Yuhua;Ding Menghong(No.2 Mud logging Company,BHDC,CNPC,Renqiu Hebei 062550)
出处
《中外能源》
CAS
2021年第S01期150-154,共5页
Sino-Global Energy
关键词
岩石热解参数
含油饱和度
数据恢复
原油体积系数
含油性评价
Rock pyrolysis parameters
Oil-bearing saturation
Data recovery
Crude oil volume factor
Oil-bearing evaluation
作者简介
姚忠东,工程师,1993年毕业于华北石油职工大学石油地质专业,主要从事综合解释评价工作。E-mail:yaozhongdong@cnpc.com.cn
