The invention discloses a
wireless transmission well testing
system of an ultra-deep well and relates to the filed of
dynamic monitoring of an oil reservoir, in particular to a device for a
pressure buildup test for an oil gas production well. The proposal utilizes a ground receiving device, a cable, a supporting cylinder, a
sensing system and a
ball valve; the supporting cylinder is connected with the upper part of the
ball valve; the outer wall of the supporting cylinder is provided with a groove; the inside of a tube is provided with a
pressure transmission passage from the lower part of the
ball valve to a groove of a direct-reading manometer; the
sensing system comprises the direct-reading type manometer, a
cell and a
receiver; the direct-reading type manometer and the
cell are arranged inside the groove of the outer wall of the supporting cylinder respectively; the direct-reading type manometer consists of a sensor, an A / D module, a
microcontroller, a
signal emitter and a transmitting coil which are sequentially connected; the
receiver consists of a receiving coil, a
signal receiver, a
microcontroller and a
signal transmitter which are sequentially connected; and the receiver is arranged inside the supporting cylinder and is connected with the ground receiving device through the cable. The proposal realizes well shutdown underground, avoids accumulation in a well cylinder, shortens the well testing period, can fully avoid causing incomplete underground
pressure buildup curve by insufficient time for well shutdown, can set sampling density at any moment through a ground computer, avoids causing the loss of wire section in early stage and meets the testing requirement of well testing of the oil gas well.