ALTERNATING FLOW RESISTANCE INCREASES AND DECREASES FOR PROPAGATING PRESSURE PULSES IN A SUBTERRANEAN WELL
摘要
A method of propagating pressure pulses in a well can include flowing a fluid composition through a variable flow resistance system which includes a vortex chamber having at least one inlet and an outlet, a vortex being created when the fluid composition spirals about the outlet, and a resistance to flow of the fluid composition alternately increasing and decreasing. The vortex can be alternately created and dissipated in response to flowing the fluid composition through the system. A well system can include a variable flow resistance system which propagates pressure pulses into a formation in response to flow of a fluid composition from the formation.
申请公布号
WO2011022211(A3)
申请公布日期
2011.05.26
申请号
WO2010US44421
申请日期
2010.08.04
申请人
HALLIBURTON ENERGY SERVICES, INC.;FRIPP, MICHAEL, L.;DYKSTRA, JASON, D.