水平井、分支井采油工艺现状分析与展望

介绍了国内外水平井应用概况,水平井技术主要应用在以下几种油(气)藏:薄层油藏、天然裂缝油藏、存在气锥和水锥问题的油藏、存在底水锥进的气藏。另外,水平井在开采重油、水驱以及其他提高采收率措施中也正在发挥越来越重要的作用。分析了水平井、复杂结构井采油工艺现状,包括人工举升方式、增产增注措施、防砂和控砂技术、找水与堵水技术等,并对未来水平井、复杂结构井采油工艺急需研究的问题进行了展望。

STATUS ANALYSIS AND PROSPECT OF THE HORIZONTAL WELL, COMPLEX-STRUCTURE WELL TECHNIQUES

This paper systematically introduces the application of horizontal well in domestic and abroad.The technology of horizontal well is mainly used in follows oil (gas) reservoirs,such as thin oil reservoir,naturally fractured reservoir,oil reservoirs with gas coning and water coning,gas reservoirs with bottom water coning.The horizontal well has become more and more important to produce heavy oil,water driving and other EOR reservoirs.The status of horizontal well and complex-structure well production technology were analyzed in details,including artificial lift manners、stimulation measures、sand-prevention and sand controlling technology,water-finding and water plugging technology etc.The problems urgently to be studied for production technologies of horizontal well and complex-structure well were also prospected.