SU1599521A1 - Vibrator of core barrel - Google Patents

Abstract

The invention relates to the drilling of wells. The purpose of the invention is to increase work efficiency. The device contains a core tube 2, inside of which core tube (CT) 4 is installed on the outer hanger in the form of an elastic cuff 3. In the upper part of CT 4 there are upper and lower partitions, and between them there is an isolated cavity 10 filled with air. Radial channels 9 are made above the upper partition. A hinge bearing 6 with an upper main striker 7 and an additional lower striker 8 is installed on the upper partition. The head 7 is placed in the cavity of CT 4 under the cuff 3 above the channels 9, and the firing pin 8 is located in the cavity 10. The heads 7 and 8 are installed with the possibility of striking CT 4 simultaneously in diametrically opposite directions when pumping the washing liquid. 1 hp f-ly, 1 ill.

Description

The invention relates to the drilling of exploration wells, in particular to devices for core sampling.

The purpose of the invention is to improve performance,

The drawing shows the device General view with

The vibrator contains an adapter 1, a column pipe 2, inside of which, with a possibility of lateral displacement, on the external suspension, in the form of an elastic sleeve — Tfcj 3, there is a core tube 4.1, in the upper part of which there are dye partitions. The lower part 5 of the core of the receiving pipe 4 is designed to accommodate the core, and in the upper part of the upper partition there is an articulated support 6 with the upper main striker 7 and the lower additional striker 8. The strikers are installed with the possibility of striking the core receiver simultaneously directions x. The head 7 is placed in the cavity of the pipe 4 under the elastic cuff 3 above the radial channels 9, made above the upper partition, and the firing pin 8 - in an isolated cavity 10, which is formed by partitions. Last can be filled with air.

The vibrator works as follows.

When pumping the washing liquid, the hammer 7 makes oscillatory movements and strikes the pipe 4. At the same time, the BTopoii hammer 8 8 causes diametrically opposite blows inside the cavity 10 filled with air.

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increasing the energy of the oscillation of the pipe 4 and not letting the striker 7 freeze due to inertia inside the jet of washing liquid. The resulting vibration is increased due to the lateral displacement of the upper part of the pipe 4, fixed in the elastic cuff 3. This will improve the drilling performance by reducing the core core wedges.

Claims (2)

1. Vibrator of a core tube, including a core tube and a core tube installed in it with an external suspension and an articulated support with an upper main striker installed in the cavity of the core receiver tube, and the lower additional striker, characterized in that, in order to increase the efficiency of work , the outer suspension is made in the form of an elastic cuff, and the core tube is in the upper part with two partitions with an isolated cavity between them and the radial channels above the upper partition, while the pivot bearing is mounted The main and additional strikers are capable of striking the core-simultaneous pipe simultaneously in diametrically opposite directions, with the main striker placed under the elastic cuff over the radial channels, and the additional one in the isolated cavity-. 2. Vibrator POP.1, characterized in that the isolated cavity is filled with air.