METHOD FOR MEASURING WELL OPERATION PARAMETERS AND GROUP UNIT FOR ABOVE METHOD IMPLEMENTATION Russian patent published in 2005 - IPC

FIELD: oil and water production equipment, particularly for survey of boreholes or wells.

SUBSTANCE: method involves performing works to determine parameters, which characterize formation-well-equipment system operation by measuring and pumping plant; performing continuous control of operational efficiency thereof and control of separate technological operations, which increase well operation efficiency, wherein above technological operations include pumping product out of well along with pressure reduction at well heads at pressure less than pressure in gathering system or at pressure necessary for reverse injection of separate extractive product components into well during geological and technological works performing, using two-piece tubular volumetric and mass measuring-and-pumping devices which are installed in several stages to achieve high pressures and which form multifunctional group measuring and pumping unit. The group unit comprises one, two or several two-piece measuring and pumping devices including one or several sections and having technological couples including cylinders and pistons used as main working members. Pistons are connected one to another by common rod passing through chamber which divides the sections. The chamber is provided with packing glands arranged from both sides thereof. Sections are provided with receiving and discharge pipelines, position sensing means and with pressure and temperature sensors, which are used to determine main parameters.

EFFECT: possibility to simultaneous performing a number of functions aimed at investigation of well-equipment system operation and separate technological operations, which increase oil production efficiency.

2 cl, 1 dwg