准噶尔盆地三台油田—阜东斜坡区侏罗系头屯河组沉积相特征  

Sedimentary Facies Characteristics of Jurassic Toutunhe Formation in Santai Oilfield-Fudong Slope,Junggar Basin

作　　者：职文栋[1] 姚宗全 张博轩 于凯[1] 向辉[1] 刘勇[1] 刘慧颖 沈雨露 肖翔 Zhi Wendong;Yao Zongquan;Zhang Boxuan;Yu Kai;Xiang Hui;Liu Yong;Liu Huiying;Shen Yulu;Xiao Xiang(Zhundong Oil Production Plant of PetroChina Xinjiang Oilfield Company,Fukang,Xinjiang,831511,China;College of Geology and Mining Engineering,Xinjiang University,Urumqi,Xinjiang,830000,China;Key Laboratory of Central Asian Geology and Mineral Information Integration Autonomous Region,Urumqi,Xinjiang,830000,China;Party Committee Office of Xinjiang Oilfield Company,Karamay,Xinjiang,834000,China)

机构地区：[1]中国石油新疆油田分公司准东采油厂,新疆阜康831511 [2]新疆大学地质与矿业工程学院,新疆乌鲁木齐830000 [3]中亚地质矿产信息集成自治区重点实验室,新疆乌鲁木齐830000 [4]中国石油新疆油田分公司党委办公室,新疆克拉玛依834000

出　　处：《新疆地质》2023年第2期218-225,共8页Xinjiang Geology

基　　金：国家自然科学基金青年基金(41902109);新疆维吾尔自治区天山青年计划(2020Q064)联合资助。

摘　　要：为揭示三台油田和阜东斜坡区在物源方向、沉积相等方面的差异性,采用重矿物分析法、沉积差异对比法展开研究。结果表明:三台油田物源由南向北,来自南部的博格达山。研究区以中砂岩为主,发育以表征分流河道为主的槽状、板状交错层理及平行层理砂岩相,水动力较强,以辫状河三角洲沉积环境为主;阜东斜坡区主物源为NE向的卡拉麦里山,次物源为南部博格达山。研究区以细砂岩为主,发育以表征侧积作用为主的板状交错层理砂岩相,水动力条件由强到弱,以曲流河沉积为主。通过对研究区“量体裁衣”式差异对比研究,理清了三台油田和阜东斜坡区沉积相沉积特征,为后续井网部署明晰方向,即三台油田应在前缘区寻找优质储层,阜东斜坡应在西北区寻找有利区提供井网部署方向。In order to reveal the differences of provenance and the Jurassic sedimentary facies between the Santai oil-field and Fudong slope area,a compression was carried out by heavy mineral and sedimentary facies analysis.Results show that the provenance of Santai oilfield is interpreted from south to north and denuded from Bogda mountain,which is dominated by medium-grained sandstone and Gmm(Gravelly matrix supported of mud),St(trough cross-bedding of sandstone),Sp(planar cross-bedding of sandstone),Sh(horizontal cross-bedding of sandstone)lithofacies assemblages belonging to the sedimentary facies of distributary channel in braided river delta.Nevertheless,provenance in the north of Fudong slope area was the Karamaili,and the minor provenance here came from the southern Bogda Mountain.In ad-dition,Fudong slope area is dominated by lithofacies assemblages of fine-grained sandstone of Sp(planar cross-bedding of sandstone)implying a hydrodynamic conditions from strong to weak in the environment of meandering river.This study is helpful for identification of the varied sedimentary facies and provides the well pattern arrangement for the fol-lowing Santai oilfield to search for high-quality reservoirs in the front area in the delta mode,while the Fudong slope should search for favorable areas in the northwest area in the meandering river mode.

关 键 词：三台油田 阜东斜坡 头屯河组 物源 沉积相 

分 类 号：P618.130.2[天文地球—矿床学]