METHOD OF WATER DETERMINATION IN WATER-OIL MIXTURE IN WELL BORE AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2015 - IPC E21B49/08 G01N27/22 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil industry, and can be used during studies to determine product composition of separated pays, and of the entire well. The method of water determination in the water-oil mixture in the well bore by means of measurement of the sensor electric capacity, the sensor contains central electrode, coated with dielectric, and jet directing pipe used as second electrode. At that change of the sensor electric capacity is performed with stop at each point under two modes, one of them during flowing of the ascending flow of the water-oil emulsion through the annulus made between the sensor electrodes, another one - during gravitational separation of individual components in the water-oil mixture sample located in the measuring cavity of the sensor by means of closing of windows for the water-oil mixture passage through the sensor. Besides the device for the method implementation is suggested.

EFFECT: increased accuracy of water determination in the ascending flow of the water-oil mixture in the well bore.

2 cl, 2 dwg