SU905435A1 - Plugging composition preparation device - Google Patents

Description

(54) I WILL DEVELOP FOR 1STDELECTED I SUSPENSION MIXTURE

I

The invention of OTHOOITCH for oil and gas production, and as a base for well drilling, is intended for the hardening of a plugging mixture used to eliminate absorption of flushing fluid during drilling.

A device for mixing the powdered additive with a cement mortar is known, which contains an auger, with which the powdered additive is transported to a tee, from where -9 a head is sent by a stream of air. In the die head, the cement slurry is mixed with the additive and, in the form of a plugging mixture, is piped into the absorbent layer 1.

The closest in terms of technical solutions. The invention according to the invention is a device consisting of a cylindrical body, a nozzle, a mixing chamber in a nozzle for insertion of a filler 2}.

The disadvantage of these devices lies in the fact that the tamponukitsa mixture obtained is not uniform in its content of filler.

The purpose of the invention. - obtaining a homogeneous tamponing mixture, eliminating the suction of the filler, cleaning the perforated partition.

This goal is achieved by the fact that the device is equipped with a vacuum pump installed in the upper part of the body, the lower part of the body is made conical, and the filler inlet is installed in the conical part, the diameter of which in the place of filler inlet is installed

 where d is the diameter of the conical part of the housing in which the nozzle for insertion of the filler is installed; D - diameter of the cylindrical part

enclosures;

QI - vacuum pump performance; QI - cement consumption. In addition, the device is equipped with a perforated partition, installed over

Claims (3)

Claim 1. A device for preparing a plugging mixture, consisting of a cylindrical body, a nozzle, a mixing chamber and a nozzle for introducing filler, characterized in that in order to obtain a homogeneous plugging mixture, the device is equipped with a vacuum pump installed in the upper part of the housing, the lower the casing part is conical, and the nozzle for the filler inlet is installed in the conical part, the diameter of which at the installation location of the filler inlet is determined from the ratio I where d is the diameter of the conical part of the housing in which the nozzle for introducing the filler is installed, m; D is the diameter of the cylindrical part ^{50 of the} housing, m; Q _} is the capacity of the vacuum pump; m ³ / min; Q ₂ - cement consumption, m ³ / min. 55 2. The device according to π. 1, with the fact that, in order to exclude Qi is the capacity of the vacuum pump; About _g - the consumption of cement. suction of the filler into the cavity of the vacuum pump, the device is equipped with a perforated baffle mounted above the nozzle for introducing the filler. 3. The device according to claim 2, which requires that, in order to clean the perforated partition, an impeller is installed on the outer surface of the nozzle, the blades of which are curved towards the air flow with the filler.