THE APPROXIMATE FORMULAE OF PRODUCTIVITY AND WELL TESTING FOR HORIZONTAL WELLS

摘要

This paper studies steady and unsteady three dimensional flow of fluids in porous media for horizontal wells. The ellipsoids of revolution of equipotential are produced by a horizontal well as a line source. The approximate formulae of productivity and well testing for horizontal wells are derived by average method and investigating ellipsoids of equipotential as equally cylinder. Our formulae are simple and feasible in oil development project.