托普台北地区奥陶系蓬莱坝组地震地层学研究  

The seismic stratigraphic interpretation of Penglaiba formation of Ordovician in north of Tuoputai area

作　　者：徐浩[1] XV Hao(Exploration and Development Research Institute of Sinopec Northwest Oilfield Company,Urumqi Xinjiang 830011,China)

机构地区：[1]中国石化西北油田分公司勘探开发研究院,新疆乌鲁木齐830011

出　　处：《石油化工应用》2020年第7期83-88,共6页Petrochemical Industry Application

基　　金：国家重大科技专项,项目编号:2017ZX05005-004-008。

摘　　要：塔里木盆地托普台北地区奥陶系蓬莱坝组储层研究存在两个问题,一是储层有别于一间房组,其主控因素为断控型,而蓬莱坝组储层为沉积相和断裂共同控制;二是蓬莱坝组储层非均质性强,相变快,目标类型不明确。针对上述问题,本文开展了以钻井和地震资料为基础的地震地层学研究,通过地震相定性定量分析,明确了本区的六大类地震相的纵横向展布特征。通过单井相分析和标定,最终将地震相转化为沉积相,并指出颗粒滩相为有利相带。There are two problems in the reservoir study of Penglaiba formation of Ordovician in north of Tuofutai.First,the reservoir is different from Yijianfang formation,and its main control factor is fault control type,while Penglaiba formation reservoir is jointly controlled by sedimentary facies and fault.Second,the reservoir of Penglaiba formation has strong heterogeneity,fast phase transformation and unclear target type.For the above problems,in this paper,seismic stratigraphy based on drilling and seismic data is studied.Through the qualitative and quantitative analysis of seismic facies,the vertical and horizontal distribution characteristics of six types of seismic facies in this area are determined.Through the analysis and calibration of single well facies,the seismic facies is finally transformed into sedimentary facies,and it is pointed out that the granular beach facies is the favorable facies belt.

关 键 词：蓬莱坝组 地震地层学 塔里木盆地 地震相 

分 类 号：TE121.34[石油与天然气工程—油气勘探]