沉积学报2017，Vol.35Issue(2)：358-370,13.DOI:10.14027/j.cnki.cjxb.2017.02.013
吉木萨尔凹陷芦草沟组致密油储层沉积相分析
Depositional Facies Analysis on Tight Reservoir of Lucaogou Formation in Jimsar Sag, Junggar Basin
摘要
Abstract
Using cores,thin section,log and well log data,based on the identification of every base types and characteristics of the cycle interface,the Permian Lucaogou Formation strata in Jimsar sag are divided into 1 long-term cycles,6 medium-term cycles and 44 short-term cycles,the high resolution sequence stratigraphy correlation framework is established.On the basis of summarizing the geochemistry,lithology,sedimentary structure and electrical characteristics,comprehensive analysis of fossils and logging data to identify the sedimentary facies marks,single well,well connected and plane sedimentary facies analysis,the Permian Lucaogou Formation strata are mainly salified-lake facies,locally delta facies deposit,with the complex lithology formed by mechanical deposition,chemical deposition,and the deposition of fine clastic rocks,mud and carbonate rocks which are deposited under the influence of the deposition.Lucaogou Formation developed two tight oil body sweet spot,the upper body is a kind of salty lacustrine carbonate rocks,the types of micro facies in shallow lake dam;The inferior dessert is mainly based on the delta front to the former delta subfacies.Micro facies type is sheet sand and far sand dam.At the same time,the advantage of horizontal continuous change of reservoir in the area of the study area and the level of the well is to be revealed by the reservoir,control of planar micro facies boundary in tight oil reservoir,thus more accurately reflect the plane distribution characteristics of tight oil reservoir.Research shows that the quality of Lucaogou Formation near to the sweet spot is beach bar microfacies mainly developed in the center of the sag at low uplift.关键词
准噶尔盆地/吉木萨尔凹陷/芦草沟组/咸化湖/沉积相/致密油Key words
Junggar Basin/Jimusaer sag/Lucaogou Formation/salified-lake/sedimentary facies/tight oil分类
天文与地球科学引用本文复制引用
张亚奇,马世忠,高阳,李映艳,张景,王黎,孙雨,许方哲,李杭..吉木萨尔凹陷芦草沟组致密油储层沉积相分析[J].沉积学报,2017,35(2):358-370,13.基金项目
国家高技术研究发展计划(863计划)项目(2013AA064903) （863计划）
国家自然科学基金(41272153) （41272153）
国家科技重大专项(2011ZX05006-005),黑龙江省普通高等学校青年学术骨干支持计划项目(1254G003)[National High Technology Research and Development(863 Program),No.2013AA064903 （2011ZX05006-005）
National Natural Science Foundation of China,No.41272153 （）
National Science and Technology Major Project,No.2011ZX05006-005 （）
The High School Youth Academic Backbone Support program of Heilongjiang Province,No.1254G003] （）
