摘要
气测录井在钻井过程中可检测多项参数,具有简单、快捷、灵敏、连续、在线等优势,目前已成为发现油气层的一项基本录井技术。随着石油勘探开发技术的提高,部分特殊类型油气层被发现,这些特殊类型油气层不具有典型油气层的气测响应特征,应用传统的解释方法、解释图板对这些气测资料进行解释评价时符合率较低。为解决这些特殊类型油气层的气测解释难题,提出一种全新的解释方法——“能量系数”解释法。基于“能量系数”解释法的基本概念、计算方法、应用方法、优点与不足,阐述了由灌满系数、全烃异常相对幅度综合而成的“能量系数”解释的地质依据,介绍了其应用领域从低孔低渗储层延伸到高孔高渗储层,应用地域从原研究盆地拓展到其他不同类型盆地的发展历程。目前该方法已得到现场录井人员及部分高校研究人员的一定认可,并拓展应用到光谱资料解释,取得了较好的应用效果。
Gas logging can detect many parameters during the drilling process,and has the advantages of simplicity,rapidness,sensitivity,continuity and online,so it has become a basic logging technology for discovering oil and gas reservoirs.With the improvement of petroleum exploration and development technology,some special types of oil and gas layers have been found,but these layers do not have the response characteristics of typical oil and gas reservoirs,which leads to low coincidence rate when the traditional interpretation methods and charts are used to interpret and evaluate these gas data.In order to solve the difficult problems of gas interpretation of these special types of oil and gas layers,a brand new interpretation method of"energy coefficient"is proposed.Based on the basic concept,calculation method,application method,advantages and disadvantages of the"energy coefficient"interpretation method,the geological bases of the"energy coefficient"interpretation method,which is synthesized by the filling coefficient and the relative amplitude of the total hydrocarbon anomaly,are expounded.The application field of the"energy coefficient"interpretation method extends from low-porosity and low-permeability reservoirs to high-porosity and high-permeability reservoirs.The application area expands from original research basin to other different types of basins.At present,the method has been recognized by the field logging personnel and some university researchers,and has been extended to spectral data interpretation,achieving good application results.
作者
方锡贤
FANG Xixian(North China Measurement and Control Company of Sinopec Matrix Corporation,Zhengzhou,Henan 473132,China)
出处
《录井工程》
2022年第4期1-5,共5页
Mud Logging Engineering
关键词
能量系数
地质依据
灌满系数
全烃异常
相对幅度
解释方法
energy coefficient
geological basis
filling coefficient
total hydrocarbon anomaly
relative amplitude
interpretation method
