Slotted Liner Design for SAGD Wells
SAGD has become one of the most widely used methods of thermal heavy oil recovery. SAGD wells are typically completed with slotted liners in the horizontal section as sand control devices. It is essential that slotted liners be designed to have sufficient structural capacities to withstand both installation loads (such as compression, curvature loading and torque) and operation loads (such as thermal strain and external formation pressure). Torque is typically the key installation load condition that must be controlled to avoid the development of permanent slot deformations. During operations, the slotted liners must be strong enough to withstand the inherent thermal strains and potential strain localization without causing excessive slot deformations. This paper presents several considerations for the design of slotted liners. It reviews the potential deformation mechanisms that a slotted liner may experience during installation and operation. Advanced finite element models were developed to determine the slotted liner structural capacities for various load conditions and slot patterns, including a newly developed gang slot pattern. The paper also addresses the issues of strain localization and its impact on the slotted liner design.
J. XIE S.W. JONES C.M. MATTHEWS B.T. WAGG P. PARKER R. DUCHARME
C-FER Technologies, Canada G&L Slotco Oilfield Services, Canada
国际会议
首届世界重油大会(The Technical Sessions of the First World Heavy Oil Conference)
北京
英文
581-589
2006-11-12（万方平台首次上网日期，不代表论文的发表时间）