Study On Flow Theory And Application Of Fractured Volcanic Rock Reservoir Exploited With Horizontal Well

Flow theory and application of volcanic rock reservoir exploited with horizontal well is studied based on the preexisting theories. The main research effort is as below:1. Based on point source function, expression of pressure distribution for infinite flat straight-line source, infinite flat band source, band reservoir straight-line source and band reservoir band source are derived with integration and image reflection methods. Line source solutions of horizontal well pressure in different reservoir conditions are presented with Newman arithmetic product method. Horizontal well pressure in consideration of skin factor and coefficient of storage in different reservoir condition is presented with Laplace transfer and Stehfest numerical inversion. A new deliverability formula of horizontal well is proposed based on equivalent ellipsoid idea.2. A physical horizontal well simulation model of fractured reservoir is designed. Based on this model, affects of horizontal section length, horizontal section included angle on production effect are studied.3. Dual mesh method for upscaling is offered. This method...