准噶尔盆地中1区块J_1s_2~1有利储层及主控因素  

Favorable Reservoir and Its Main Control Factors of Section J_1s_2~1 in Block Zhong 1 of Junggar Basin

作　　者：乔玉雷[1] 

机构地区：[1]中石化胜利油田分公司西部新区研究中心,山东东营257000

出　　处：《石油天然气学报》2011年第3期48-52,166,共5页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2008ZX05002-002)

摘　　要：准噶尔盆地中1区块三工河组二段1亚段(J1s21)有利储层主控因素及其分布规律是制约该地区岩性油藏勘探的主要因素,从有利储层宏观与微观特征入手,分析其主控因素,并展开定性分析与定量评价。通过对中1区块J1s21储层特征进行分析,界定有利储层的物性下限为孔隙度9%,渗透率2.5×10-3μm2。通过对沉积相带、成岩作用和储层埋深等有利储层影响因素研究分析,确定研究区J1s12有利储层的主控因素为沉积相带与储层埋深,其中,水下分支河道微相与河口坝微相为有利储层发育的有利相带,储层埋深在4500m以上的区域是寻找有利储层的优先区域。The main control factors and distributing rules of J1s12 favorable reservoirs in Block Zhong 1 in Junggar Basin were the main factors restricting the exploration of lithologic reservoirs in the region.Based on the macroscopic and microscopic characteristics of favorable reservoirs,their main control factors were analyzed,and the qualitative analysis and quantitative evaluation were performed.The low limits of physical property of the favorable reservoir including 9% porosity and 2.5×10-3μm2 permeability were determined through reservoir characteristic analysis in J1s12 reservoir of Block Zhong 1.Through the analysis of the favorable influential factors such as sedimentary facies,diagenesis and burial depth of reservoirs,it is determined that the main control factors are sedimentary facies and burial depth of reservoirs.The subsea distributary channel microfacies and mouth bars microfacies are the most favorable reservoir growth belts.The area with reservoir burial above 4500 m is preferential area to find favorable reservoirs.

关 键 词：准噶尔盆地 有利储层 沉积微相 物性下限 储层埋深 

分 类 号：P618.13[天文地球—矿床学]