基于油藏特征的完井方法  

Improving development profit by using reservoir based completion

作　　者：吕晓光 张学文 刘永喜[2] Bradford W Sincock Budi Tyas Utomo 

机构地区：[1]中国石油天然气勘探开发公司 [2]中国石油大庆油田有限责任公司采油工程研究院

出　　处：《石油勘探与开发》2008年第4期509-512,共4页Petroleum Exploration and Development

基　　金：中国石油天然气集团公司科技攻关项目"印尼Jabung区块复杂断块凝析气田油藏描述与高效开发技术研究"(05b60202)

摘　　要：通过优化完井,无需动用管柱,可提高措施效率、开采多个油气藏及多层非均质砂岩油藏,从而控制开发成本并提高采收率。印尼苏门答腊Jabung区块开发井钻遇三类典型油气藏:气顶油环油气藏、多油气藏及多砂岩非均质油藏。根据各类油气藏的特点,采用针对性的完井方法,优化的完井方法利用常规完井技术和井下工具实现单井一次完井,无需复杂的再完井措施,可同时或接替生产多个油气藏。此外,针对非均质多砂岩特点,应用可控的分层注水技术,可提高油藏采收率。上述完井方法已成功应用于不同类型油藏中,为油气水分布复杂的小断块油田开发过程中控制操作成本、提高开发井的整体效益提供了借鉴。Implementation of well completions enabling multiple hydrocarbon reservoirs to be produced by a single well can save production cost and enhance recovery. Aiming at the characteristics of the three kinds of oil and gas reservoirs in the Jabung block in Indonesia, that is, gas cap oil-rim reservoir, multiple hydrocarbon reservoirs and heterogeneous multiple-sand reservoir, this paper puts forward optimized completion methods by using conventional technology and down-hole equipment. The new methods are able to develop multi-reservoir sands at the same time or successively without additional completion jobs, In addition, the novel completion enables water injection wells to selectively control iniection and can improve the recovery of hydrocarbons from producing wells. The above strategies have been applied to different types of reservoirs, providing an effective means for maximizing reserves recovery, controlling operating expenditures, and improving the overall benefit of development wells.

关 键 词：一次完井 油气藏特征 优化完井 井下作业 整体效益 

分 类 号：TE24[石油与天然气工程—油气井工程]