加砂压裂是川西致密气层普遍采用的改造技术措施；
Sand fracturing is the major stimulation measure in Western Sichuan tight sandstone gas reservoir.
在室内用水基冻胶压裂液浸入致密气层岩心，进行了伤害试验研究。
Experiments were carried out on tight gas formation core sample with a water base crosslinked gel fracturing fluid.
荷兰皇家壳牌公司继续在北美致密天然气蕴藏资源中取得领先优势，在马塞卢斯和伊格福特区的油气成藏组合中新增高储量油气层。
Royal Dutch Shell plc (“Shell”) continues to build a leading portfolio in North America tight gas, with new positions in high potential US shale gas acreage, in the Marcellus and Eagle Ford plays.
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