METHOD FOR MEASURING YIELD OF OIL WELLS AND FACILITY FOR IMPLEMENTATION OF THIS METHOD Russian patent published in 2009 - IPC E21B47/10 

FIELD: oil and gas production.

SUBSTANCE: disclosed group of inventions refers to oil production, particularly to measuring equipment and can be implemented for on-line measurements of oil well yield by liquid and gas. The measuring facility of oil well yield consists of a micro-processing controller, of a measuring vessel corresponding to vertically assembled structure with two branches located in lower and upper parts of the measuring vessel, of pressure sensors and of lock devices. The measuring vessel is equipped with an internal partition made in form of a diaphragm. The lower branch is made with two outlets for discharge of liquid phase and for exhaust of gas phase, and is equipped with a float and a limiter of float surfacing height. The inlets of the micro-processing controller are connected to the outlets of the pressure sensors, which are located on the upper and lower branches and collector line. The outlets of the microprocessor controller are connected to the inlets of the lock devices, which are arranged on a by-pass line, on the well line or on the measuring line, on the pipe bend for exhaust of gas phase, and on the piping behind and before the upper branch. The method of measuring yield of oil wells consists in filling the measuring vessel with production of the well, in separating production of the well with extraction of liquid and gas phases, in withdrawal of liquid and gas phases via the lower branch, in acquisition of data on parametres of pressure, in processing data on parametres by calculation for determining yield of production withdrawn from the well. Additionally there is performed acquisition of data of time parametres. The micro-processor controller registers duration of filling of the measuring vessel and duration of displacement from the measuring vessel. There is carried out control over data on parametres of pressure and time by means of the micro-processor controller; also the micro-processor controller generates control signal to the lock devices.

EFFECT: upgraded accuracy of yield measurement; reduced time for measurement and upgraded operational reliability of measuring system.

8 cl, 1 dwg