录井资料综合解释评价方法在高邮凹陷的应用

录井技术的发展,使油气层解释评价的手段日益增多,但不同录井方法的原理和对象不同,可能造成油气层解释结论的不一致,因此需要对录井资料进行综合解释评价。高邮凹陷地质构造复杂,油藏类型丰富,储层特征各异。通过研究高邮凹陷油、气、水层在常规地质录井过程中的表现特征,并结合岩石热解、定量荧光、岩样核磁分析等录井新技术的解释结论,对油气显示层进行综合分析,判断储层性质,以克服现代工程技术对录井勘探找油、找气带来的不利影响,力求解决复杂岩性、特殊油气藏的油气层的评价解释难题,提升录井资料综合解释评价水平。研究中发现,由于高邮凹陷断层发育,构造破碎,不同区块油气水层特征差异较大,同一区块也可能有新的含油层系发现,因此在运用新的技术手段时,也要创新地层对比、气测三角形图版法等传统方法,不漏失任何油气层。

The Application of Logging Comprehensive Interpretation and Evaluation Method in Gaoyou Sag

With the development of mud logging technology,the methods of oil and gas reservoir interpretation and evaluation are increasing day by day.It might result in inconsistent conclusion of oil and gas zone interpretation because of different principles and objects of various logging methods.Hence it needs to be a comprehensive explanation of the mud logging data.In this paper,the shows of oil and gas zones were analyzed and the reservoir properties were evaluated through the study on performance characteristics of oil,gas,and water zones of the Gaoyou sag in the conventional geologic logging process and the interpretation results by rock pyrolysis,quantitative fluorescence,and nuclear magnetic logging technology.It can overcome the adverse effects of modern engineering technology on logging exploration for oil and gas.It will also solve the evaluation and interpretation difficulties of the oil-gas reservoirs in the complex lithology and special hydrocarbon reservoirs and the level of comprehensive interpretation and evaluation of logging data will be enhanced.Because of the developed faults and crush structure in Gaoyou sag,there are large differences on characteristics of oil-gas-water zones for various blocks and new oil-bearing formations may be found in the same block.In order to find all oil-gas reservoirs,new technology will be applied and traditional methods of strata correlation and triangular chart of gas survey should be innovated at the same time.