WELL COMPLETION METHOD Russian patent published in 2023 - IPC E21B43/10 E21B33/14 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to well construction and final logging before running the casing. A method of well completion, including a casing string rundown and well cementing, characterized in that the following arrangement is first installed on the casing string from bottom to top: a through-hole drilling shoe with a central flushing hole with a diameter equal to the inner diameter of the casing string and at a distance of at least 1 m from it a stop ring with an inner diameter exceeding the diameter of the run-down geophysical tool, the casing string is run with the hook-up into the well to a depth that allows blocking the cavernous sections of the wellbore, then a geophysical tool is run into the casing string on a cable until the bottomhole of the well is reached, geophysical surveys are carried out and a geophysical tool is retrieved to the surface, after that the casing string is run into the well to the design depth and the well is cemented.

EFFECT: geophysical surveys with unhindered descent of geophysical instruments on a cable to the bottomhole without preliminary preparation of the wellbore complicated by cavernous sections, as well as reducing the time spent at the well completion stage.

1 cl, 4 dwg