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2014年7月10日,塔里木油田轮古701井注气64 d后,产油由此前不足1 t增加到38 t,含水率下降至0.2%,效果明显。轮古油田作为塔里木油田最早开发的碳酸盐岩油田,目前已进入开发中后期,面临着整体含水率高、地层能量不足、单井产能低下、加密井部署困难等一系列难题。随着储层改造、堵水等措施挖潜及注水二次采油的深入开发,油藏开发效果逐渐变差,
On July 10, 2014, after 64 days of gas injection at Well 701 in Tarim Oilfield, the oil production increased from less than 1t to 38t and the water cut to 0.2%. As the earliest developed carbonate oilfield in Tarim Oilfield, the Lunghu Oilfield has entered the middle and late stages of development. It faces a series of problems such as high overall moisture content, insufficient stratigraphic energy, low single well productivity and difficult deployment of infill wells. With the measures such as reservoir reconstruction and plugging and tapping potential and further development of secondary recovery of water injection, the effect of reservoir development gradually deteriorates,