塔中Ⅲ区碳酸盐岩储层去泥质反演及泥质充填判别  

Mud Removal Inversion and Mud Filling Discrimination in Carbonate Reservoir in Tazhong Ⅲ Area

作　　者：华晓琴[1] 史乐[1] 梁涛[1] 赵文苹[1] Hua Xiaoqin;Shi Le;Liang Tao;Zhao Wenping(No.2 Oil Production Plant,Xinjiang Oilfield Company,Petrochina,Karamay, Xinjiang,834000,China)

机构地区：[1]中国石油新疆油田分公司采油二厂,新疆克拉玛依834000

出　　处：《新疆地质》2019年第1期90-95,共6页Xinjiang Geology

基　　金：国家科技重大专项塔里木盆地大型碳酸盐岩油气田开发示范工程(2011ZX05049)

摘　　要：塔里木盆地塔中Ⅲ区奥陶系碳酸盐岩储层是近年来勘探重点区域,良里塔格组储层内沉积泥质灰岩条带,以及一间房组洞穴顶部存在的沉积泥质条带,给储层预测带来了较大难度。为提高储层预测精度,分析奥陶系良里塔格组和一间房组储层内泥质展布规律,建立沉积泥质灰岩条带背景纵波阻抗体,完成了无井约束叠后地质统计学反演。研究结果表明,无井反演储层预测纵向发育位置、储层级别和已钻井吻合较好。利用叠前同时反演得到纵横波速比,通过纵波阻抗与纵横波速比交会图分析法,划分了一间房组优质储层、泥质充填储层、基质灰岩分布区间,对洞穴型储层泥质充填、叠前流体预测反演进行探索,确保储层预测的可靠性。The study area of lianglitage formation reservoir sedimentary argillaceous limestone belt,and a room at the top of the cave group sedimentary shale strip,which brings great difficulty to reservoir prediction.The Lianglitag formation and the Yijianfang Formation reservoir in mud distribution analysis,establish sedimentary argillaceous limestone belt background P-wave impedance,the non well constrained poststack geostatistical inversion.The results show that the predicted vertical development location and reservoir grade are in good agreement with the drilling well.Through the analysis of drilling and rock physics research,using prestack simultaneous inversion obtained by shear wave velocity,shear wave velocity and wave impedance crossplot analysis method,a real group of high quality reservoir,mud filling reservoirs, matrix limestone Distribution Division of cave type reservoir mud filling,pre stack the fluid prediction and inversion are explored,also provide reference for such mud filling in carbonate reservoir prediction.

关 键 词：碳酸盐岩 测井 叠前反演 地质统计学反演 储层预测 

分 类 号：P315.3[天文地球—地震学]