Δlg R技术在烃源岩评价中的应用

Application of △lg R technology in hydrocarbon source rocks evaluation

王 鹂 唐成磊 王 飞

中国石油大学，山东 东营 257061 胜利石油管理局钻井工艺研究院，山东 东营 257000 胜利油田分公司胜利采油厂，山东 东营 257000

China University of Petroleum, Dongying 257061, China Research Institute of Drilling Technology, Shengli Petroleum Administration Bureau, SINOPEC, Dongying 257000, China Shengli Oil Production Plant, Shengli Oilfield Company, SINOPEC, Dongying 257000, China

有机碳质量分数（TOC）是反映岩石有机质丰度最主要的指标之一。Δlg R方法是一种利用测井资料识别和计算含有机质岩层总有机质碳的方法。文中简要介绍了Δlg R技术的方法及原理，并结合录井、地质背景资料，利用声波、电阻率测井资料计算了冀中中生界烃源岩的有机碳质量分数，并对烃源岩层的丰度及展布规律进行了分析研究。实际应用表明，该方法可弥补地化实验资料缺乏的不足，而且简单易行、经济实用，具有广泛的应用前景。

Organic carbon content is one of the most important indexes that indicate the abundance of organic matter. △logR technology is a method to identify and compute the total organic carbon in the source rocks by using well logging data. In this paper, the principle of △lg R technology was introduced briefly, and the TOC values of Mesozoic source rocks were given in Jizhong Depression by integrating the mud logging, geology, acoustic wave logging, resistivity logging data. Then the abundance and distribution rules of hydrocarbon source rocks in Mesozoic reservoir were evaluated according to the calculated result. The application examples illustrate that this method can compensate the shortage of geochemical experimental data, and that it is economic and effective and has a extensive application prospect.