Secondary Log Evaluation of Reservoir Parameter in S1 ormation of Dongxin Oilfield
单位
( 1 长江大学地球科学学院 2 胜利油田有限公司东辛采油厂)
Organization
Dongxin O il Produc tion P lant, Shengli Oilfield Co. Ltd. , SINOPEC, Dongying 257094, China
摘要
针对东辛油田沙一段储层评价中存在的问题, 运用实验分析及区域性回归关系
对储层孔隙度、渗透率及含油性等参数进行了二次评价。在孔隙度评价中, 主要借助声波时差
数据进行拟合, 同时进行压实和泥质校正; 渗透率借助T imur公式及经验公式获取; 对于含油
饱和度, 由于泥质及地层水矿化度的影响, 针对不同的地层水电阻率及阳离子交换容量, 采用
W - S模型或双水模型。经过对储层参数的精确分析及计算, 建立储层参数数据库, 较好地预
测了沙一段油层厚度分布规律。
Abstract
A im ing at the problem s ex isted in the eva luation of S1 Fo rm ation reservo ir ro ck in Dongx in o ilfield, th is paper takes advantage o f experim ental ana ly sis and reg iona lity regress ion re lation fo r second eva luation of reservo ir rock porosity, perm eab ility and o iliness param eters. In the course o f eva luation o f porosity, it is v irtue o f acoustic tim e da ta for fit. Pe rm eab ility is obta ined by the fo rmu la of T imur. Due to the effect o f slime and reservo ir wa ter salin ity, the o il satura tion can be obta ined by theW-S m ode o r tw o-wa term ode a im ing at different form ation w ate r e lectr ica l resistiv ity and ca tion exchange capac ity. Based on the accurate ana ly sis and ca lcu la tion fo r reservo ir rock param eters, reservo ir rock param eters database can bebu ilt, S1 Form a tion o il layer thickness can be fo recasted perfectly.
关键词:
东辛油田;沙一段;孔隙度;渗透率;含油性;
Keywords:
Dongx in oilfie ld, S1 Fo rm ation, Porosity, Pe rm eab ility, O il saturation. Ⅵ;