A brief analysis of the common problems and solutions of sealed coring technology of loose sandstone in the X oil field in Bohai Sea,China
The sealed coring is an important technical means to directly record and compare the changes of reservoir lithology,physical properties and oil content during flooding,and it is the most effective method to evaluate waterflooded layers in oil field,obtaining complete and true sealed core data is a prerequisite and key for scientific and accurate research in the later stage.This article analyzes and proposes relevant measures to the common problems in the sealed coring operation of loose sandstone in the X oil field in Bohai Sea,including accurate coring layer determination,improving core recovery rate and sealing rate.It has been successfully applied in the sealed coring operation of well F in the X oil field,achieving the goal of accurate target layer,achieving 100%core recovery rate,and 100%sealing rate.
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