克拉玛依油田九区石炭系油藏裂缝特征  

CHARACTERISTICS OF THE FRACTURES IN CARBONIFEROUS RESERVOIRS, AT THE ZONE 9, KRAMAY OIL-FIELD

作　　者：张新国[1] 秦启荣[1] 霍进[2] 周远志[1] 张卫国[2] 

机构地区：[1]西南石油大学,四川成都610500 [2]中国石油新疆油田重油公司,新疆克拉玛依834000

出　　处：《西南石油大学学报（自然科学版）》2007年第2期75-77,共3页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：四川省重点学科建设项目(SZD0414)

摘　　要：以岩芯观察、录井资料、钻井资料和成像测井资料为基础,研究了克拉玛依九区石炭系火山岩油藏裂缝的特征。结果表明:石炭系火山岩油藏裂缝非常发育,主要为构造运动作用形成的构造缝,大部分裂缝都被各种固体矿物不同程度地充填,影响了裂缝对油气储集和运移的有效性;裂缝主要为网状裂缝和斜交缝,规模以细小裂缝为主,大裂缝较少;裂缝方位主要为北东向,与主构造方向相同。根据上述基本特征和成因,对研究区裂缝进行了综合分类;探讨裂缝与构造运动的关系,认为发育的4期裂缝与构造运动期次相吻合;探讨了裂缝发育的影响因素,认为岩石性质和构造位置是影响裂缝发育的主要因素。Based on the rock core observation,logging data, well drilling data and image logging data, the characteristics of fructures in Carboniferous volcanic reservoirs, at the zone 9, Kramay oilfield is studied. The result indicates: fractures in the volcanic reservoisr are well developed,they are mainly structural fractures formed in the tectonic movement, most of them are filled with some kinds of solid minerals, which impact fractures′ validity to oil accumulation and migration. There are reticulate and heterotropic fractures, most of them are small scale, main fracture direction is Northwestern, consistent with main structural direction. According to the characters and cause of formation, the fractures are classified comprehensively. By studying the relation of fractures and tectonic movement, it is recognized that there are 4 periods of fracturing, corresponding with the tectonic movement. Finally, the influencing factors of fracture developing are studied, and it is indicated that characters of rocks and structural locations are main factors influencing the fracture′ developing.

关 键 词：石炭系油藏 火山岩 裂缝 特征 影响因素 

分 类 号：TE122.3[石油与天然气工程—油气勘探]