SU1219779A1 - Core tool - Google Patents

Description

. one

The invention relates to mining and can be used in the drilling of wells with coring.

The purpose of the invention is to increase the reliability of geological information due to the ordering of core sampling.

FIG. 1 shows a coroner, longitudinal section; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section B-B in FIG. one; in fig. 4 shows a section B-B in FIG. one.

Column projectile consists of body 1 with through-holes 2 and supra-chuck sub 3, connected to its body 1 with chisel 4. On the chisel 4 there is a core-controlled pipe 5 with core-catcher 6, which is connected by telescopic connection with core wire pipe 7. The latter is rigidly fixed in the lower partition 8. The lower 8 and upper 9 partitions, made in the form of blind flanges and installed inside the housing 1, are rigidly fastened with several, in this case, four, circulating pipes 10 that communicate the central hydraulic Ka sky. above the partition 9 with hydraulic channels of the bit 4 and symmetrically located relative to the longitudinal axis of the pipe 7. The partitions 8 and 9 together with the pipes 10 form a core-receiving bunker, while the pipes 10 divide this bunker into sections.

Between the pipes 10 are installed removable segments 11, fastened by projections 12 of the lower partition 8 and the ring 13, to form a detachable container. In the lower part of the upper septum 9, the rotation support of the kernolom is made in the form of a cylindrical cup 14, in the cavity of which is spring loaded with a spring 15 compressed, and with a core kernol 16 in the form of a cylinder with a beveled and concave base 17, which is connected to the cup 14 by means of vdars 18 fixed in the cup has screws 19 and a wave groove 20 on corenome 16. The entire arrangement between partitions 8 and 9 is spring loaded Noah 21. The outlet of the core pipe 7 is equipped with a drill bit 22. The coreset grooves 20 have alternating spirits flax

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23 and vertical 24 plots, while the number of spiral plots is equal to the number of sectors — four.

The device works in the following 5 ways.

The column cable is attached to the drill string or the shaft of the downhole motor and lowered into the well. The process of drilling 10 with coring is carried out.

The flushing fluid pumped by the pump moves through the internal channel of the drill pipes, then through the circulation pipes 10 into the cavity 15 of the sub 3 and into the flushing channels of the bit 4. 4. In the bottom hole flow is separated: part of the flow washes the bit 4 and moves upwards through the annular gap between 20 projectile and borehole, a friend goes up through pipes 5 and 7 and through holes 2 enters the annulus.

Formed in the process of drilling

25 core, support1 "1st up

in the core-guide and core-conduit tubes, the flow of the PROFILE OF VOICE is abutted against the flat base 17 of the corenolum 16, which is the spring 15, rises upwards, turning 1/4 turn. Subsequent movement from: an uphill core leads to the breaking of a part of it that projects over

35 by a drill bit 22. A broken piece of core is placed in the sector of the bunker, located under the sloped base of the kernolom. Released core-NOL 16 by spring 15

40 is moved downward and the core crushing cycle is repeated, with each successive broken core piece falling into the adjacent sector of the bunker as the projectile rotates. The fall

The 45 cores in the hopper are softened by the presence of a certain amount of washing liquid.

Vertical oscillations of the drill bit 4, arising during drilling, are quenched with a spring 21 and the central flow of the washing liquid on the surface of the upper partition 9. Thus, the core that falls into the hopper is evenly and rest stops 55 around the core pipe 7 and is not exposed due to the vibration of the rock-breaking tool, thanks to which

its safety and reliability of geological information is increased.

After the tool is lifted, the columnar is installed in the rotor barrel and is removed from the assembly housing consisting of the upper part 12197794

it and the lower partitions 9 and 8, interconnected by circulation pipes O with segments JI, held by the projections of the lower partition 8 and the ring 13. Then the ring 13 is moved upwards and removed seg-; 1I cops for core excavation.

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Compiled by V, Aksler Editor N. Dankulich TehredL.Oleinik Proofreader V. Booth ha

Order 1304/43 Circulation 548 Subscription

VNIIPI USSR State Committee

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

Branch ShP Patent, Uzhgorod, st. Project, 4

FIG.

Claims (2)

1. A COLONAL APPARATUS containing a chisel, an over-bit sub, a body with an internal core receiving hopper, a core wire and core guide, a core explorer, a core, made in the form of a cylinder with a beveled base, and a support for rotating the core with a cylindrical glass connected with a core with the fact that, in order to increase the reliability of geological information by streamlining core sampling, the connection of a cylindrical glass with a core break is made in the form of balls fixed in a glass and paired with a ball E undulated groove on kernolome, wherein kernolom podpruzhiyen on the glass. 2. The shell pop. ^ characterized in that the corrugated core of the core breaker has alternating spiral and vertical sections, while the bunker is divided into sectors, the number of which is equal to the number of spiral sections. . SU. „. 1219779>