贝尔凹陷布达特群潜山源岩供烃能力及与油气的关系  

Hydrocarbon Supplying Ability of Source Rock and Relation between Oil and Gas of Buried Hill of Budate Group in Beier Depression

作　　者：王建新[1] 

机构地区：[1]大庆油田有限责任公司,黑龙江大庆163453

出　　处：《石油天然气学报》2006年第4期31-34,共4页Journal of Oil and Gas Technology

摘　　要：通过油岩对比,得到贝尔凹陷布达特群潜山油气主要来自布达特群、兴安岭群、南一段和南二段4套源岩。源岩分布及与布达特群潜山接触关系研究得到,布达特群源岩分布于潜山的内部。兴安岭群源岩与布达特群潜山源岩接触面积最大,其次是南二段,南一段接触面积最小。源岩地化特征研究得到,贝尔凹陷布达特群潜山以南一段和南二段源岩供烃条件最好,其次是兴安岭群源岩,最差为布达特群源岩。通过源岩评价等级与工业油流井分布之间关系研究得到,工业油流井均分布在较好源岩区内或附近,表明布达特群潜山油气成藏与分布之间明显受源岩供烃能力的控制。Through contrast between oil and source rock, oil and gas in buried hill of Budate Formation of Beier Depression are considered to come from source rocks of Budate Formation, Xinganling Formation^Tongbomiao Formation, the first member of Nantun Formation and the second member of Nantun Formation. Through studying the contact relation between distribution of source rocks and buried hill of Budate Formation, the contact area between source rock of Xinganling Formation ~Tongbomiao Formation and buried hill of Budate Formation is the biggest. The contact area between source rocks in the second member of Nantun Formation and buried hill of Budate Formation is second. The contact area of the first member of Nantun Formation and buried hill of Budate Formation is third. Through studying geochemical characteristics of source rock, the hydrocarbon supplying condition of the first and second members of Nantun Formation to buried hill of Budate Formation is the best, the hydrocarbon supplying condition of Xinganling Formation^Tongbomiao Formation to buried hill of Budate Formation is second, the hydrocarbon supplying condition of Budate Formation to buried hill of Budate Formation is third. Through studying the relation between evaluation grades of source rocks and distribution of industrial oil wells, industrial oil wells are distributed around good source rocks. It indicates that oil accumulation and distribution in buried hill of Budate Formation are controlled by hydrocarbon supplying ability.

关 键 词：贝尔凹陷 布达特群 潜山 源岩 供烃能力 油气 

分 类 号：P618.13[天文地球—矿床学]