METHOD OF CONTINUOUS CONTROL OF EXTRACTED FLUID PARAMETERS DURING WELL DEVELOPMENT AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2020 - IPC E21B23/14 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil industry and can be used in geophysical studies of oil wells, in particular for monitoring parameters of well fluid during development. Method of continuous control of extracted fluid parameters during well development includes installation of geophysical instrument, installation of additional lubricator for geophysical instrument. Additional lubricator for the geophysical instrument is connected by one end to the T-branch of the main wellhead lubricator used during development of the well. Additional lubricator is introduced into the line of the flow system of withdrawal of the extracted well fluid by connecting its other end through the tee to the line. Geophysical instrument is installed in additional lubricator and connected to recording equipment of station by means of additional cable. Additional lubricator includes a hollow housing for arrangement of a geophysical instrument, quick disconnect couplings, cable tips and a cable. Diameter of hollow housing is increased considering storage of channel of extracted fluid flow and location of geophysical instrument in it and is equal to 1.2⋅D_bas. One quick-disconnect connection is located at one end of the hollow body. Second quick-disconnect connection is located on the tee on the other end of the hollow casing at the point of connection of the additional lubricator to the T-branch line of the flow system of removal of the well lifted to the surface of the fluid. In the other end of the hollow housing there is a cable entry sealing element consisting of a cable lug of the internal, a cable lug of the external and sealing element located between the cable lugs.

EFFECT: continuous monitoring of extracted well fluid parameters by geophysical instruments.

2 cl, 2 dwg