SU1350329A1 - Drilling tool - Google Patents

Abstract

The invention relates to the field of mining and is intended for means of drilling wells with coring. The purpose of the invention is to improve the accuracy of the geological survey and the quality of core samples. The rig contains annular rock-breaking tool 1 connected to each other with flushing channels 2, a packer 3 and a double-string drill string formed by an outer tube and with an inner tube 5 fixed inside it with an annular annular cavity bis radial channel 9 in Od sd with you

Description

wall below packer 3. Cavity 6 is divided into parts insulated along the entire length of the column. At the same time, one part communicates with channels 2, and the other part communicates with channel 9. Destroyed mountain rock through pipe 5 is transported to the surface by means of a cleaning agent supplied through one part of cavity 6 to channels 2 to the bottom,

one

The invention relates to mining, namely to means of drilling wells with coring and a device for carrying out the removal of sludge

The purpose of the invention is to improve the accuracy of the geological survey and the quality of core samples.

FIG. 1 shows a part of the projectile, a cut; FIG. 2 is a section AA. in FIG. 1,

The drill contains annular rock-breaking tool 1 connected to each other with washing channels 2, a packer 3 and a drill string of double pipes formed by an outer pipe 4 with an inside pipe 5 fixed inside it, with an annular annular cavity 6 divided into two parts 7 and 8, isolated from each other along the entire length of the column.

Part 7 communicates with the sludge outlet channels 2, and part 8 with a radial channel 9 in the wall of the pipe 4 below the packer 3.

The drill is as follows,

In the process of drilling under the action of axial load and torque, the tool destroys the rock that is transported to the surface through the inner pipe 5 by means of a cleaning agent supplied through part 7 of the cavity 6 to the flushing channels 2 to the bottom of the well. in the internal truagent transports the core. Another part of the agent destroys jorod and feeds it into the annular sub-packer space, and from there through channel 9 to part of cavity 6, and then to the surface o T, o transported to the surface the core and sludge do not contact each other, because on separate channels, 2 Il.

bu 5 and transports the core, and another part of the cleaning agent captures the destroyed rock, feeds it into the annular sub-packer space and from there through the radial channel 9 to part 7 of the annular cavity 6 and further along it to the surface into special webs or tanks to core

material

Thus, the core and sludge are transported to the surface. Along separate channels, not in contact with each other. Only core material is processed on the surface.

Form y, l and inventions

A drill bit containing rock-breaking tool connected with each other with flushing channels, a packer and a drill string of double pipes formed by an outer pipe with an inner pipe fixed inside it, with an annular annular cavity, and a radial channel in the wall below the packer about the fact that, in order to improve the accuracy of the geological survey and the quality of the core sample,

The annular annular cavity is made divided into two isolated along the entire length of the column. Parts, with one part communicating with the flushing channels, the other with the radial channel, and the rock-breaking tool is made circular.

Compiled by V. Aksler. Editor N. Bobkova Tehred A. Kravchuk Proofreader A. Obruchar

Order 5237/32 Circulation. 533Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

(Par.2

Claims (1)

Claim A drill containing a rock cutting tool connected to each other with flushing channels, a packer and a drill string of double pipes formed by an outer pipe with an inner pipe fixed inside it, with an annular annular cavity and with a radial channel in the wall below the packer, which that, in order to improve the accuracy of geological georeferencing and the quality of core samples, the annular annular cavity is divided into two columns isolated along the entire length of the column. partly, while one part communicates with washing channels, another with a radial channel, and the rock cutting tool is made circular. ΑΆ FIG. 2