海拉尔盆地苏仁诺尔成藏系统  

Description of hydrocarbon system in Surennuoer area, Hailar basin.

作　　者：张吉光[1] 张宝玺[2] 陈萍[2] 

机构地区：[1]大庆石油管理局勘探事业部 [2]大庆石油管理局勘探开发研究院

出　　处：《石油勘探与开发》1998年第1期25-28,59,共5页Petroleum Exploration and Development

摘　　要：苏仁诺尔断隆带位于海拉尔盆地乌尔逊断陷北部，是晚白垩世以来隆升的断裂构造带，其轴向由北北东向转为北东东向，北东东段为收敛段，南西段为撒开段，中段弧顶向北西突出。晚侏罗世至早白垩世，该断裂带经历的构造应力作用方式由早、中期的右旋张扭转为晚期左旋压扭，局部构造和地层的发育时序及岩浆活动时序都有由收敛端向撒开端迁移的规律，因之使其油气成藏系统具有被弧形构造控制的特殊规律性。该断隆带处于烃源岩区，虽缺乏深埋条件，但岩浆活动造成了相对高古地热条件，使上侏罗统南屯组烃源岩成熟、大磨拐河组烃源岩低成熟，形成西部下气（二氧化碳及其它非烃气）上油而东部以油（低熟轻质油）为主的成藏系统，主要有４种成藏模式：侧向运移为主的披覆背斜型，双向运移断块型，垂向运移为主的逆牵引背斜型，侧向运移为主的滑陷背斜型。Surennuoer faulted uplift belt is a arcuate structure zone which underwent an early extended torsional stress and later compression torsional stress and was in lacustrine depositional environment, which is favourable for combination of source, reservoir and sealing rocks, though it had lacked of deeply buried condition because of earlier elevation than other areas, and magmatic intrusion causing relatively high geotemperature which made source rock mature or low mature. Hydrocarbon accumulates in arcuate structure high and contraction in forms of vertical and lateral migration, which makes hydrocarbon system that gas (non hydrocarbon gas) under oil distributes in western part, low mature light hydrocarbon in eastern part. There are four main models of oil and gas reservoirs.

关 键 词：成藏条件 油气藏 油气聚集带 盆地 

分 类 号：P618.130.2[天文地球—矿床学]