摘要
中原油田东濮凹陷深层致密凝析气藏分布较广,主要为大段砂泥岩互层、单层厚砂体型,由于岩性致密,储层物性差,一般压裂投产,但应用常规压裂技术动用难度大、开发效果差,多层多段压裂是动用该类储层的核心技术。为推动致密油凝析气藏开发,研究优化设计、储层保护技术,引进多层压裂完井体系,在长井段水平井分段压裂获得成功,并拓展应用于直井、定向井,改变了逐层压裂的开发模式,实现了深层致密凝析气藏的有效动用。
The distribution of deep tight condensate gas reservoir in Dongpu sag of Zhongyuan oilfield is wide, the reservoir is characterized by long sandstone and mudstone alternate layer, thick single sand layer, tight lithology and poor reservoir physical property. The development effect of the reservoir using conventional fracturing technology is poor, multilayer and multiple sections fracturing are the core technology of this kind reservoir development. In order to promote development of tight gas reservoir, through optimizing fracturing design, researching reservoir protection technology, and introducing multilayer fracturing completion system, the staged fracturing technology was used successfully in horizontal well with long horizontal section, and the fracturing technology could be also used for straight well and directional well. The fracturing technology changed the development mode of zone-by-zone fracturing, and effectively developed the deep and tight condensate gas reservoir.
出处
《钻采工艺》
CAS
北大核心
2013年第3期49-51,7,共3页
Drilling & Production Technology
基金
国家科技重大专项课题"东濮凹陷油气富集规律与増储领域"(2011ZX05006-004)
关键词
深层低渗
致密凝析气藏
多段多层压裂
压裂设计
有效动用
low permeability, tight condensate gas reservoir, multilayer and multiple sections fracturing, fracturing design
