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System and Method for Enhanced Oil Recovery from Combustion Overhead Gravity Drainage Processes
System and Method for Enhanced Oil Recovery from Combustion Overhead Gravity Drainage Processes
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机译:用于提高燃烧顶空重力排水过程中的采油量的系统和方法
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摘要
A pre-ignition heat cycle (PIHC) using cyclic steam injection and steam flood techniques is described that improves the recovery of viscous hydrocarbons from a subterranean reservoir using an overhead in-situ combustion technique such as combustion overhead gravity drainage (COGD). The PIHC, by developing horizontal and vertical transmissive zones, predisposes a viscous oil reservoir to develop a conformable combustion chamber. Good conformance of the combustion chamber enhances recovery factor and improves well operations in the field for in-situ combustion applications.
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