Model of Cementing Annulus Gas Channeling Based on the Lattice Boltzmann Theory
نویسندگان
چکیده
The phenomenon of the cementing annulus micro clearance gas channeling directly influences cement job quality and oilfield production, so accurately describing the flow rule of cementing annulus micro clearance gas channeling is the core and "bottleneck" problem of controlling gas channeling effectively. From the perspective of the micro particle motion and based on the lattice Boltzmann method, the flow model of cementing annulus micro clearance gas particle is established. Select a block of Daqing Oilfield to calculate and simulate the distribution rule of flow velocity of micro clearance gas particle under different annulus pressure difference. The calculation results reveal the essence of the cementing gas channeling gas particle flowing in micro ring clearance, and new ideas are found out for the study of the problem about subsequent cementing gas channeling.
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