五宝场构造裂缝性气藏加砂压裂工艺技术  

TECHNOLOGY OF SAND-CARRIER AND FRACTURING IN FRACTURED GAS RESERVOIRS IN WUBAOCHANG STRUCTURE

作　　者：叶登胜[1] 王素兵[1] 陆灯云[1] 

机构地区：[1]四川石油管理局井下作业公司

出　　处：《天然气工业》2007年第5期14-17,共4页Natural Gas Industry

摘　　要：对于砂岩裂缝性气藏而言,由于受到储层物性和气层污染等因素的影响,自然产能往往较低,不经改造难以达到工业开采价值。但是裂缝性气藏在压裂过程中由于天然裂缝的开启与扩展,增大了液体在地层中的滤失,较大的滤失量不仅增加了造缝难度,难以形成较宽的裂缝,另一方面还会造成携砂液在裂缝中提前脱砂形成砂堵。为此,针对川东北五宝场构造裂缝性气藏的特点,分析了加砂压裂改造的难点,实施了相应的工艺技术与配套措施,现场应用情况表明取得了良好效果。As for sandstone fractured gas reservoirs in the Wubaochang structure, their natural production capacity is relatively low due to the influence by many factors such as the physical property of the formation and the contaminated gas layers, and so on. The fractured gas reservoirs there would not have the value of the industrialized production unless some innovative countermeasures had been taken. Because natural fracture opens up and starts to develop during the fracturing, the increasing filtration rate of liquids in the formation will not only add the difficulty for fracture initiation, which blocks wider fissure to be created in the end, but will lead to sand plug because of sand falling out earlier for proppant laden slurry in the fracture. Therefore, this paper introduced the characteristics of the fractured gas reservoirs in the Wubaochang structure of Northeast Sichuan Basin, and analyzed the difficulties of innovative sand-carrier fracture technology. The corresponding technology and the equipped countermeasures, adopted on practical fields, have been proved successful with a value of reference to some degree for sand-carrier and fracturing technology to innovate the fractured gas reservoirs.

关 键 词：五宝场构造 砂岩油气藏 裂缝性气藏 压裂 工艺 技术 应用 

分 类 号：TE357[石油与天然气工程—油气田开发工程]