DOWNHOLE DEVICE FOR TRANSMITTING INFORMATION FROM DOWNHOLE SENSORS DURING OPERATION OF WELL WITH SUBMERSIBLE PUMP Russian patent published in 2024 - IPC E21B47/12 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry, namely to the field of downhole information transmission from the well to the surface via a communication channel, and can be used for monitoring of well operation process. Downhole device for transmitting information from downhole sensors during operation of a well with a submersible pump includes a packer lowered into the well, installed above the opened productive formation, submersible sucker-rod pump with a measuring unit of sensors at the inlet communicated with the under-packer space. Pump rod string is configured to transmit information via a cable from the measuring unit to the recording unit located at the wellhead. Pump and rod string are equipped with data transmission cable, which is coiled outside 1/3–1/2 of the lower part of the pump without fixation from above to compensate for elongation and/or movement of the rod string relative to the pump fixed relative to the packer.

EFFECT: proposed downhole device for transmitting bottomhole information during operation of a well with a submersible pump enables to expand the field of application due to the possibility of operation on the old well stock when using a cable equipped with an elongation compensator, including in the composition of the sucker-rod pump during pipeless operation of the well.

3 cl, 1 dwg