民丰地区砂砾岩体及沉积演化特征

Glutenite and sedimentary evolution characteristics in Minfeng Area

高娟 谢锐杰 王东辉 薛辉 涂伟 李亮

长江大学地球物理与石油资源学院，湖北 荆州 434023 长江大学地球科学学院，湖北 荆州 434023 长庆油田分公司勘探开发研究院，陕西 西安 710021 长庆油田分公司第五采油厂，陕西 西安 710021

民丰地区沙三下和沙四上、下段总体以近岸水下扇沉积为主，通过对工区内4口资料较全的井（丰深1、丰深3、丰8、永920）进行单井相分析，形成了对民丰地区沉积作用较全面的认识。在此基础上，通过研究沉积构造、岩石微相特征及垂向序列的组合关系，识别沉积微相类型及其与测井曲线之间的关系，建立了各种类型微相的测井相模式或岩-电模型。利用岩-电关系，进行全区的测井相分析，再利用测井相模式来解释沉积微相，从而研究砂砾岩体的剖面演化特征和平面展布规律。

The reservoir of Lower Es3 and Upper and Lower Es4 in Minfeng Area mainly belongs to subsea fan facies deposition. Through making the single well facies analysis for Wells Fengshen 1, Fengshen 3, Feng 8 and Yong 920, the author can get the comprehensive knowledge to the deposition of this area. Based on this, the microfacies types and the relationship between microfacies type and log curve are identified through studying the combination relation of sedimentary structures, rock microfacies characteristics and vertical
sequence. The logging facies mode or rock-electric model of various microfacies is established. This paper analyzes the logging facies in the whole area by using the rock-electric relation and interprets the microfacies by using logging facies mode in order to study the profile evolution characteristics and plane distribution of glutenite.