复杂断块油田套管损坏机理分析

Mechanical Analysis in Casing Damage Caused by Sang Production in Producers

文章以东濮凹陷文中油田历年井况大调查套管损坏资料为依据,在对出砂油井套管损坏形态、层位与射孔状况、岩石性质等因素进行综合分析基础上,对疏松砂岩出砂、上覆岩层坍塌等主要方面导致的套管受力变形进行研究,为探讨及防治措施提供依据。

Sand production is believed to be the vey in WZ oilfield in Dongpu depression. The casing main cause of casing damage based on well status surdeformation caused by sand production from unconsolidated sandstones and caving of the overlaying strata is studied through comprehevsive analysis on morphologic characteristics of casing damage,horizon and perforation status,and rock properties. It provides a basis for preventing casing damage in unconsolidated sandstones.