出砂气井携砂产能研究  

Study on sand-carrying productivity of sanding gas well

作　　者：邓绍强[1] 胡明[1] 肖莉[1] 陈华生[1] 

机构地区：[1]西南石油大学资源与环境学院,四川成都610500

出　　处：《特种油气藏》2008年第3期87-89,96,共4页Special Oil & Gas Reservoirs

基　　金："四川省矿产普查与勘探重点学科建设"项目资助(SZD0414)

摘　　要：疏松砂岩气藏在开采过程中容易出砂,采取完全防砂的方式进行开采,既增加了气井的成本,又降低了气藏的开发速度。为此,提出疏松砂岩气藏采取允许地层适量出砂的开采方式。通过对井筒中固体颗粒的受力分析,建立了颗粒的力学平衡方程,并由此得到了气井携砂的临界产量公式。经过实例分析证明,所推导的临界携砂产量公式较为准确和适用。Unconsolidated sandstone gas reservoirs tend to produce sand during recovery process. Recovery with complete sand control method will increase cost and reduce development rate. Hence, it is proposed to allow an appropriate amount of sand production during recovery of unconsolidated sandstone gas reservoirs. This paper analyzes force-summing on solid particles in wellbore, establishes a mechanical balance equation of particles, thus derives a critical production equation of sand-carrying gas well. Analysis of practical cases has proved that this critical sand-carrying production equation is accurate and applicable.

关 键 词：疏松砂岩气藏 出砂 携砂 力学模型 临界产量 

分 类 号：TE375[石油与天然气工程—油气田开发工程]