白庙致密砂岩凝析气藏水平井优化设计  

Optimization Design of Horizontal Wells in Tight Sandstone Reservoir in Baimiao Condensate Gas

作　　者：马青印[1] 李才学[1] 毕建霞[2] 苏道敏[2] 蒋森堡[2] 

机构地区：[1]中国石化中原油田分公司采油六厂,山东东明274511 [2]中国石化中原油田分公司勘探开发科学研究院,河南郑州450000

出　　处：《西南石油大学学报（自然科学版）》2014年第2期85-90,共6页Journal of Southwest Petroleum University(Science & Technology Edition)

摘　　要：白庙气田具有构造复杂、埋藏深、储层物性差、凝析油含量高、地露压差小、地层压力高等特点,属于致密砂岩凝析气藏。气井压裂投产初期一般具有较高的产能,但随着凝析油在近井地带析出堵塞渗流通道,产量下降快,稳产时间短。投入开发以来,一直采用直井开采,采出程度低,开发效果差。水平井开发机理研究认为,采用水平井开发可以提高气井产量及气藏采收率。针对该气藏地质特点,通过深入研究地质特征,重新认识局部构造和储层展布规律,开展了水平井开发这类气藏的试验研究,先后优化实施了2口水平井,取得了初步的效果,对合理开发致密砂岩凝析气藏具有一定的指导意义。Baimiao Gas Field belongs to a tight sandstone condensate gas reservoir which is characterized with complicated structure,deep burial,poor reservoir property,high content of condensate oil,showing small differential pressure,high for-mation pressure. Gas well fracturing stage generally has a higher capacity. But with the condensate blockage flow channel in the near wellbore area precipitation,the production fast declines and the stable production period shortens. The vertical well technology has been used in the development of the gas field,which is of low recovery degree and poor development effect. The development of horizontal well can increase the production rate and the recovery of gas reservoir. According to the geo-logical characteristics of the gas reservoir,and through in-depth study of the geological characteristics,we recognize the local structure and the distribution rule of reservoir. Horizontal well test was carried out to study the development of this kind of gas reservoir. We optimized 2 horizontal wells and obtained initial effect which has a certain guiding significance for the rational development of tight sandstone gas condensate gas reservoir.

关 键 词：水平井 优化设计 致密砂岩 凝析气藏 白庙气田 

分 类 号：TE22[石油与天然气工程—油气井工程]