CONTAINER FOR LOWERING INSTRUMENTS ON THE TUBING STRING Russian patent published in 2022 - IPC E21B47/17 

FIELD: geophysical studies.

SUBSTANCE: invention relates to devices for geological field and geophysical studies of wells. The device is designed for simultaneous pressure measurement in the tubular and annular spaces of the well, in particular, during the operation of two development objects separated by a packer. The substance of the invention lies in the fact that the container, made in the form of a cylinder with threaded connections with tubing at the ends, has an eccentrically located longitudinal through channel of circular cross section inside and on the outer surface - a longitudinal outer groove for the full placement of an autonomous geophysical instrument in it for simultaneous measurement of parameters in the tubular and annular spaces of the well. The groove is made deaf with end walls. In the end part of the groove on its two sides on the cylinder there are flats with the formation of walls, in which holes are made for the locking elements fixing one end part of the device. In the initial part of the groove, a through drilling is made in the container wall along the longitudinal axis of the device, through which the tip of the device with sealing elements located on the opposite end part of the device is passed and fixed from the outside. Inside the tip, interconnected axial and radial channels are made to communicate the in-line space with the sensitive element of the device.

EFFECT: increasing the reliability of container fasteners, which ensure reliable fastening of geophysical instruments to it, which increases the accuracy of measurements.

1 cl, 3 dwg