于士泉,姜晓伟,李伟,钟琳
YU Shiquan,JIANG Xiaowei,LI Wei,ZHONG Lin

• 1:大庆油田有限责任公司勘探开发研究院
• 2:大庆油田有限责任公司天然气分公司

摘要(Abstract)：

徐深气田火山岩气藏属于深层特低渗透气藏,采用单一直井开发单井产量低,大部分井区难以有效动用。为了探讨这类气藏的有效开发模式,从2005年开始了水平井开发试验研究,逐步建立了徐深气田火山岩气藏水平井开发优化设计技术和水平井随钻地质导向技术,发展完善了火山岩气藏水平井钻井和压裂等配套工艺技术。水平井已成为徐深气田火山岩气藏开发井的首选井型,取得了明显的应用效果。通过对比分析水平井与直井的开发动态特征,对水平井开发应用效果进行了详细评价。开发实践表明,水平井技术是提高徐深气田火山岩气藏单井产量、储量动用程度和实现气藏高效开发的主体开发技术。
The volcanic gas reservoirs in Xushen Gasfield belong to deep and ultra-low permeability ones,due to the single development by the vertical wells,the single well production is rather lower,thus most of the well blocks are difficult to effectively develop.In order to explore the effective developing mode of this kind of gas reservoirs,the horizontal-well pilot tests for the reservoirs was caught out in Xushen Gasfield in 2005.Through the exploration and researches,the optimized designing technique of the horizontal-well development and geosteering technology have gradually been established in the light of the reservoirs,the matched technologies and techniques such as drilling and fracturing have been developed and improved.The horizontal well has become the preferred type of the developing well in the volcanic gas reservoirs of Xushen Gasfield and has achieved obvious application effects.By means of comparing and analyzing the dynamic characteristics of the developments between the horizontal and vertical wells,the development and application effects of the horizontal wells are evaluated in detail.The application shows that the horizontal well technique has developed into the key producing technique for increasing the individual well production and reserves developed degree and furthermore realizing the high-efficiency exploitation of the volcanic reservoirs in Xushen Gasfield.

关键词(KeyWords)： 徐深气田;火山岩气藏;水平井;动态特征;应用效果
Xushen Gasfield;volcanic gas reservoir/pool;horizontal well;dynamic characteristic;application effect

Abstract:

Keywords:

基金项目(Foundation): 中国石油天然气股份公司科技攻关项目“火山岩气藏有效开发技术研究”(2011B-1506)

作者(Author): 于士泉,姜晓伟,李伟,钟琳
YU Shiquan,JIANG Xiaowei,LI Wei,ZHONG Lin

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