23
Rotary
Steerable Motor System for Deep Gas Drilling--APS
Technology, Inc., 800 Corporate Row,
Cromwell, CT
06416; 860-613-4450
Mr.
William E. Turner, Principal Investigator, wet@aps-tech.com
Mr.
William E. Turner, Business Official, wet@aps-tech.com
DOE
Grant No. DE-FG02-02ER83368
Amount:
$100,000
Current drilling systems (e.g.,
steerable systems and rotary steerable tools) have limitations when drilling
deep wells, particularly in applying high torque to the drill bit. Steerable
systems generate a high degree of drag from hole tortuosity, and rotary
steerable tools have reduced bit torque also due to drag.
Other systems (e.g., percussion) develop high vibrations which can damage
the accompanying electronic systems. This project will develop a rotary
steerable motor system that allows mud motors to deliver both high torque and
high power to the bit by a combination of rotary drilling speed and mud motor
speed, providing advanced rates of penetration. The system continuously adjusts
position as the drill string is rotated, completely eliminating the old practice
of “sliding” to position the hole when motor drilling.
In Phase I, a conceptual design and an operating specification for a
rotary steerable motor will be completed. An
engineering analysis will be made of the final design based upon a detailed
conceptual layout.
Commercial
Applications and Other Benefits
as described by the awardee: The
technology should have broad applications in the oil and gas well drilling
industries. Out of an estimated 3400
deviated wells drilled in 2001, less than 750 were drilled using rotary
steerable tools. The rotary
steerable motor should be applicable to all deviated wells, particularly those
that are deep and highly deviated.
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