Experimental device and method for increasing flowing-around crude oil recovery ratio on basis of CO2-crude oil mass transfer
An experimental device and recovery technology, which is applied in the direction of production fluid, earthwork drilling and production, wellbore/well components, etc., can solve problems such as unconsidered, unset airtight false cores, recovery factor deviation, etc., and achieve improved adaptability resistance, avoiding the effects of direct drive
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[0062] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0063] like figure 1 shown, a CO-based 2 -The experimental device for improving the recovery of bypassing crude oil by the mass transfer of crude oil, mainly including the improved core holder 200, which is used to coat the core saturated with oil, simulate the occurrence state of bypassing crude oil, and provide CO2 at the same time. 2 In the high temperature and high pressure environment that interacts with crude oil mass transfer, the experimental device also includes: No. 1 pressure gauge 2, No. 1 valve 3, No. 1 metering pump 4, No. 2 valve 5, No. 2 pressure gauge 6, constant temperature box 7; High pressure container 8 , Constant speed and constant pressure pump 9, No. 2 metering pump 10, No. 3 valve 11, No. 3 pressure gauge 12, back press...
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