Underground fluid pressure regulator and method of regulating pressure.

摘要

b underground fluid pressure regulator and method of regulating pressure d a module including an underground to the pressure regulating valve closing force and a regulating valvePressure. The regulating valve includes two arrangements of the diaphragm (21,40) to make it possible to obtain an output of variable pressure.The diaphragm (40) is controlled by an input fluid line (42).The fluid input is provided by a control located above the ground which is also a logging device to determine the parameters of use.