长江大学学报（自然科学版）2026，Vol.23Issue(1)：31-42,12.
一种井眼球状模型自然伽马测井围岩校正方法
A natural gamma logging shoulder bed correction method based on wellbore spherical model:A case study of middle mudstone section,Carboniferous,Hudson Oilfield,Tarim Basin
黄若坤 1谢芳 2吴兴能 3苏远大 4柳先远5
作者信息
- 1. 中国石油大学(华东)地球科学与技术学院,山东 青岛 266580||中国石油塔里木油田分公司勘探开发研究院,新疆 库尔勒 841000
- 2. 长江大学地球物理与石油资源学院,湖北 武汉 430100
- 3. 中国石油大学(华东)地球科学与技术学院,山东 青岛 266580||中国石油塔里木油田分公司勘探开发研究院,新疆 库尔勒 841000||中国石油超深层复杂油气藏勘探开发技术研发中心,新疆 库尔勒 841000||新疆维吾尔自治区超深层复杂油气藏勘探开发工程研究中心,新疆 库尔勒 841000
- 4. 中国石油大学(华东)地球科学与技术学院,山东 青岛 266580
- 5. 中国石油塔里木油田分公司勘探开发研究院,新疆 库尔勒 841000||中国石油超深层复杂油气藏勘探开发技术研发中心,新疆 库尔勒 841000||新疆维吾尔自治区超深层复杂油气藏勘探开发工程研究中心,新疆 库尔勒 841000
- 折叠
摘要
Abstract
Due to the influence of highly radioactive shoulder bed,the natural gamma logging response value of thin sand layer in middle mudstone section,Carboniferous,Hudson Oilfield,Tarim Basin is higher,which brings difficulties for shale content calculating and effective reservoir thickness dividing.Different from the existing natural gamma shoulder bed correction method,considering detecting characteristics of natural gamma log,a wellbore spherical model is constructed.Based on the natural gamma ray flux density formula of any point in space at the gamma detector,deduce the contribution factor of finite thickness formation to the measurement of natural gamma detector is deduced,and a natural gamma logging shoulder bed correction method based on borehole spherical model is given.The natural gamma logging shoulder bed correction method based on borehole spherical model is applied to correct shoulder bed effect with the thin sand layer of middle mudstone section,Carboniferous,Hudson Oilfield,Tarim Basin.The natural gamma before and after shoulder bed correction are compared with the core gamma,and the shale content which is calculated by using the natural gamma before and after shoulder bed correction is compared with core wafer data and the modular formation dynamics test results.All these verify the rationality of the new shoulder bed correction method.关键词
薄砂层/自然伽马测井/围岩校正/井眼球状模型Key words
thin sand layer/natural gamma log/shoulder bed correction/wellbore spherical model分类
能源科技引用本文复制引用
黄若坤,谢芳,吴兴能,苏远大,柳先远..一种井眼球状模型自然伽马测井围岩校正方法[J].长江大学学报（自然科学版）,2026,23(1):31-42,12.
