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鄂尔多斯盆地伊陕斜坡油气区块多为低渗透、特低渗透油田,开发过程中为提高单井产量降本增效大面积采用水平井进行开发,同时加砂压裂改造技术已成为本地区水平井增产的主要方式方法。随着水平井的工程技术不断发展与完善,水平井段长度和压裂加砂量也不断增加。而在水平井开发过程中,由于闭合压力和生产冲刷等因素的影响,开发过程中水平井井筒出砂情况日趋严重,该现象严重制约水平井持续发展。针对于此,探索并研究出一种适合该地区储层保护并切实可行的冲砂技术就迫在眉睫。水平井负压旋流泡沫常规油管连续冲砂技术就是根据本地区现状,试验并推广的一种适用性新技术,既满足本区油气开发需求,又兼顾经济实用型。
Most of the oil-gas blocks in the Yanshan Slope of the Ordos Basin are low-permeability and ultra-low permeability oilfields. In order to improve single-well productivity and reduce costs during the development, large-scale production is exploited by horizontal wells. Sand-fracturing technology has become the water Hirai stimulation of the main ways and means. With the continuous development and improvement of horizontal well engineering technology, the length of horizontal well section and the amount of fracturing sand are also increasing. In the process of horizontal well development, due to the influence of closure pressure and production flushing, the sand production of horizontal shaft in the development process is more and more serious, which seriously hinders the sustainable development of horizontal well. In view of this, it is urgent to explore and study a suitable red sand technology suitable for reservoir protection in this area. Horizontal well negative pressure cyclone foam Conventional tubing continuous sand-blasting technology is based on the status quo in the region, testing and promotion of a new applicability of both oil and gas development in the region to meet the demand, but also take into account economic and practical.