Abstract
Based on field/local data and cores of the Lishui 36-1 gas field, the formation characteristics and the grain size distribution of the reservoir of the field was analysed specifically. Combined with the empirical approach and the reference of the completion pattern in near fields, the screen types and their size scopes used in this block were determined preliminarily. Then using our sand control physical simulation experiment device for gas well, the analysis of five different screen sizes was completed for Lishui 36-1 gas field. According to the experiment result and the production requirement of this gas field, 140 microns metallic cottons screen is chosen for sand control to meet the local condition. It satisfies the production requirement, and also minimises the sand production amount, which reduces the serious problem of clogging, erosion and wearing the sea pipeline. The evaluation process has been widely used in other offshore gas fields. [Received: June 22, 2012; Accepted: June 29, 2013]
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