摘要
文、卫、濮构造结合部毗邻生油次洼,具有丰富的油源条件,区内低渗透储层比较发育、又与多套膏盐层合理搭配,形成较好的生、储、盖层组合关系,为油气聚集、保存奠定了基础。该区在沙一、沙三段共发育了发育四套盐,此外,还在沙二上亚段发育一套盐膏岩。每一套盐岩又有若干个盐岩韵律组成。与盐岩分布有关的油气藏有四种类型:砂体尖灭油气藏、岩性-断层油气藏、断层-岩性油气藏、断背斜油气藏。盐岩发育为油气藏形成提供了有利条件,主要作用是盐岩在油气藏形成中的作用是在各个方向上遮挡、封堵油气。
The connection of Wen–Wei–Pu structure has good conditions to develop reservoir because of its abutting the hypo-depression of developing petroleum. In the area, low-permeability reservoir bed developed. well and its well combined with kinds of paste rock stratum, become a better combination relationship among developing bed, reserving bed and capping bed, which makes a good foundation for oil-gas to gather and reserve. In this area ,there are four suits of halite developed in ES1 and ES3, and a suit of paste rock on the top of ES2.Every set of halite is composed of several halite rhythms. There are four kinds of reservoirs——sand body gradually disappearing reservoir, lithologic-fault reservoir, fault-lithologic reservoir and fault-anticline reservoir, which are all related to halite distribution .The development of halite can shield, envelop and stop oil-gas on every directions in the reservoir developing, which are favorable to development of the reservoir.
出处
《新疆石油天然气》
CAS
2007年第4期9-11,24,共4页
Xinjiang Oil & Gas
关键词
岩盐
盐相带
油气藏类型
油气关系
halite
halite faces belt
reservoir style
oil-gas relationship
