摘要
据有关资抖介绍,砂岩油(气)藏约有70%的储集层含泥质,从而使油(气)、水层的电阻率差别小,给测井解释工作带来很大困难。通过对单井中子伽马与感应测井曲线的重迭及读值交会两种方法的配合使用,可以省去解释中间环节,消除井眼的影响和测并仪器的系统误差,可快速、直观判断油(气)、水层。特别是在现场评价油(气)、水层段,采油和地质人员复查老井挖潜油层及分析油井出水原因等,都带来很大效益。
It is stated in some published reports that about 70% of sandstone res- ervoir contains clayey materials,so that the difference between the resist- ivity of oil(gas)-bearing and water-bearing formation is relatively small, and troubles are occured in the interpretation of logging records.By means of overlapping combination and cross plot of neutron-γ and induction logg- ing curves can eliminate source intermediate items and the effects of irregu- latity in the well bore as well as system errors from logging device,thus the identification of oil and water-bearing formation will be fast and straig- htfoward.This is especially meaningful in the evaluation of oil(gas)and water-bearing formation at well-site in the re-detection of such formations and in the analysis of the cause of water production in an oil well…etc., so that large economic benefit will result.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1992年第1期39-45,共7页
Petroleum Exploration and Development
