厄瓜多尔奥连特盆地M油田NAPO组UT层沉积特征  

Study on Sedimentary Facies of UT Formation of NAPO Group in M Oilfield of Oriente Basin in Ecuador

作　　者：郗鹏[1] 

机构地区：[1]辽河油田勘探开发研究院,辽宁盘锦124010

出　　处：《承德石油高等专科学校学报》2017年第1期1-5,共5页Journal of Chengde Petroleum College

基　　金：中国石油天然气股份有限公司项目(海外五大油气合作区油气田开发方式优化及技术对策研究):2011D-2001

摘　　要：以层序地层学及沉积学为依据,搭建地层格架划分小层,以小层为单元应用录井、岩心、测井资料建立起单井的测井响应,总结各沉积微相的测井曲线特征。平面上应用地震属性及反演技术确定各沉积微相的展布范围,从而确定工区内各小层沉积展布特征。M油田白垩统NAPO组UT层主要发育潮坪沉积,研究区内主要发育潮道、砂坪、混合坪微相,其中潮道沉积部位砂体发育较厚、物性较好、岩性纯,易形成优势储层,砂坪及混合坪次之。应用层序地层学将UT划分3个小层,在3个小层中均发育两条由西北向东南延伸的主潮道,但潮道的位置以及发育规模各不相同,UT-1、UT-3小层潮道砂体发育厚度较大且横向连续性较好,泥质含量、海绿石含量远小于UT-2小层,是此次研究的主要目的层。Based on sequence stratigraphy and sedimentology, by building stratigraphic frame, dividing the layers, using logging in small layer unit, coring, well logging data to establish the single well logging response, sedimentary micro phase characteristics of logging curves are summarized. The application of seismic attribute and inversion techniques determine the sedimentary microfacies distribution range, so as to determine the sedimentary distribution characteristics within the small layers. M oilfield in Cretaceous NAPO group UT layer mainly developed the tidal fiat deposits. In the study area mainly tidal channel, sand fiat, mixed fiat microfacies developed, and tidal channel deposition site sand body development is thick, with good physical property, lithological, easy to form advantage reservoir. But sand fiat and mixed fiat are not so good. The application of sequence stratigraphy divides UT into three layers, and in these three small layers two mainstreams were devel- oped from the northwest to the southeast extension of the road, but the wave of the position and scale of development is not the same. UT-1, UT-3 layer of small tidal channel sand body develop greater thickness and lateral continuity is better, shale content, glauconite content is far less than UT-2 layer, These are the main purpose of this study.

关 键 词：层序地层学 测井响应 单井相 潮坪沉积 优势储层 

分 类 号：TE122[石油与天然气工程—油气勘探]