Title:
DEVICE FOR DRILLING THROUGH A FORMATION
Document Type and Number:
WIPO Patent Application WO/2012/025816
Kind Code:
A3
Abstract:
The invention relates to a device for drilling through a formation, comprising a body, a mounting in the form of a riser, a cutting rod, which is accommodated in a longitudinally directed cut-out of the body between a control bushing and a running socket and mounted rotatably in a ball-and-socket joint, a pivot point in the form of a hydraulic motor, a feed point of the cutting rod, wherein said feed point comprises the ball-and-socket joint in the form of a ball that is truncated at the top and on the sides and is supported on the running socket and cooperates with the spring-loaded control bushing by means of control elements, an anchor unit in the form of a hydraulic anchor, a rotational transmission point in the form of a joint drive, a feedback point in the form of a constricting element which is located in the annular gap between the control bushing and the pivot point shaft, a pressure point toward the borehole wall in the form of a spring plate, and a rotary body, which is located in the body and in the figure cut-out of the control bushing opposite the longitudinally directed cut-out of the body. In order to lower the risk of accidents when mechanically drilling through a formation and to broaden the spectrum of applications of the device, according to the invention the control elements, which ensure the feeding of the cutting rod and the return of the device into the transport position by means of interaction of the ball-and-socket joint with the control bushing and the body, are designed as two-stepped figure projections on the lateral truncations of the ball-and-socket joint which cooperate with the cut-outs in the control bushing and the body, and the riser and the hydraulic motor of the mounting and of the pivot point are optionally replaced with a cable and an electric motor that is combined with a hydraulic pump.
Inventors:
TOLSTIHIN STANISLAV (RU)
KHARITONOV SEGEY (RU)
KHARITONOV SEGEY (RU)
Application Number:
PCT/IB2011/001943
Publication Date:
March 28, 2013
Filing Date:
August 24, 2011
Export Citation:
Assignee:
TOLSTIHIN STANISLAV (RU)
KHARITONOV SEGEY (RU)
KHARITONOV SEGEY (RU)
International Classes:
E21B43/112
Foreign References:
| RU2145663C1 | 2000-02-20 | |||
| RU2070958C1 | 1996-12-27 | |||
| US5305838A | 1994-04-26 | |||
| US5467834A | 1995-11-21 |
Download PDF:
Previous Patent: A SYSTEM AND METHOD FOR CLASSIFYING A HEART SOUND
Next Patent: FOLDABLE DISPLAY UNIT
Next Patent: FOLDABLE DISPLAY UNIT