测井技术2017，Vol.41Issue(3)：305-309,344,6.DOI:10.16489/j.issn.1004-1338.2017.03.011
三探测器密度测井仪测量套管厚度和水泥环密度
Measuring Casing Thickness and Density of Cement Sheath with Three-detector Density Logging Tool
李晓龙 1肖承文 1黄若坤 1朱雷 1宋琪 2康晓楠1
作者信息
- 1. 中国石油塔里木油田勘探开发研究院,库尔勒 新疆 841000
- 2. 中国石油塔里木油田公司石化分公司,库尔勒 新疆 841000
- 折叠
摘要
Abstract
Cased-hole logging is becoming the focus of the work in exploration and development in Dabei and Keshen of Tarim oilfield, and provides evaluation parameters for those wells with low borehole stability after installing case;it also provides measurement data for old wells which have data quality problems;we use cased-hole logging for reservoir dynamic monitoring as well.Therefore, Measurement of casing thickness and cenment density has practical meaning.Proposed is a method to measure casing thickness, the density of cement sheath, and the basic theories in cased-hole logging and analyzing gamma spectral from three-detector density logging tool using MCNP, thus determining the main influences on counting rate and establishing a relationship between counting rate and the main influences.We conclude that whatever happens in formation condition, the value of casing thickness is more accurate.However, to get the accurate value of the density of cement sheath, casing thickness should be greater than 2.5 cm.The method is better applied in Dabei & Keshen region.关键词
三探测器/密度测井/套管厚度/水泥环密度/蒙特卡罗模拟/测井解释模型Key words
three-detector/density logging/casing thickness/density of cement sheath/Monte Carlo simulation/log interpretation model分类
天文与地球科学引用本文复制引用
李晓龙,肖承文,黄若坤,朱雷,宋琪,康晓楠..三探测器密度测井仪测量套管厚度和水泥环密度[J].测井技术,2017,41(3):305-309,344,6.
