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Title: Directional drilling system with eccentric mounted motor and biaxial sensor and method

Abstract

This patent describes a directional drilling system of the type which includes a drill string having a plurality of drill stems joined together for drilling a bore through the earth in a prescribed direction. It comprises: a drilling platform having two spaced apart end walls carried by the platform; a frame carried by the platform; a carriage carried by the frame; a drill string drive motor carried by the carriage for rotating the drill string; coupling means for coupling one of the drill stems to the drill string drive motor; and carriage advance means for moving the carriage longitudinally along the frame and platform as the drill string drive motor rotates the drill sting. This patent also describes a method of drilling a bore through the earth in a desired direction using a directional drilling device having a drill sting with a drilling head carried at an outer end. It comprises: excavating a pit in the earth at a starting point of the drill sting; placing a form in the earth pit at a prescribed inclination corresponding to a desired reference entry angle of the drilling string and drilling head; pouring concrete in the earth pit between the form andmore » the earth; placing a drilling platform having a shape generally conforming to the shape of the form in the pit opening of the concrete pit; and assembling the drilling head and drill string on the platform so that the drilling head is oriented in the direction of the reference entry angle.« less

Inventors:
;
Publication Date:
OSTI Identifier:
7026949
Patent Number(s):
US 5133418; A
Application Number:
PPN: US 7-646852
Assignee:
Lag Steering Systems, Rock Mt., NC (United States)
Resource Type:
Patent
Resource Relation:
Patent File Date: 28 Jan 1991
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; DIRECTIONAL DRILLING; EVALUATION; OIL WELLS; ENHANCED RECOVERY; TECHNOLOGY ASSESSMENT; DRILLING; WELLS; 020300* - Petroleum- Drilling & Production

Citation Formats

Gibson, P N, and Barbera, L J. Directional drilling system with eccentric mounted motor and biaxial sensor and method. United States: N. p., 1992. Web.
Gibson, P N, & Barbera, L J. Directional drilling system with eccentric mounted motor and biaxial sensor and method. United States.
Gibson, P N, and Barbera, L J. 1992. "Directional drilling system with eccentric mounted motor and biaxial sensor and method". United States.
@article{osti_7026949,
title = {Directional drilling system with eccentric mounted motor and biaxial sensor and method},
author = {Gibson, P N and Barbera, L J},
abstractNote = {This patent describes a directional drilling system of the type which includes a drill string having a plurality of drill stems joined together for drilling a bore through the earth in a prescribed direction. It comprises: a drilling platform having two spaced apart end walls carried by the platform; a frame carried by the platform; a carriage carried by the frame; a drill string drive motor carried by the carriage for rotating the drill string; coupling means for coupling one of the drill stems to the drill string drive motor; and carriage advance means for moving the carriage longitudinally along the frame and platform as the drill string drive motor rotates the drill sting. This patent also describes a method of drilling a bore through the earth in a desired direction using a directional drilling device having a drill sting with a drilling head carried at an outer end. It comprises: excavating a pit in the earth at a starting point of the drill sting; placing a form in the earth pit at a prescribed inclination corresponding to a desired reference entry angle of the drilling string and drilling head; pouring concrete in the earth pit between the form and the earth; placing a drilling platform having a shape generally conforming to the shape of the form in the pit opening of the concrete pit; and assembling the drilling head and drill string on the platform so that the drilling head is oriented in the direction of the reference entry angle.},
doi = {},
url = {https://www.osti.gov/biblio/7026949}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 28 00:00:00 EDT 1992},
month = {Tue Jul 28 00:00:00 EDT 1992}
}