Operational Performance Requirements For Motor Power Sections Used in Geothermal Drilling Based Upon Minimum Specific Energy
Operational performance requirements are needed to support development of specifications for downhole motor power sections to be used for drilling hard rock during geothermal wellbore construction. Theoretical torque specifications are derived based upon a widely-accepted rock-reduction model in the literature using representative properties for typical rock formations. The derived values correspond to optimum motor performance for rock reduction at minimum specific energy and form a set of minimum requirements on output torque and power for downhole motors. Actual values should be increased to account for factors such as increased hydrostatic pressure at depth, bit wear, heterogeneous rock, and non-ideal drilling conditions.
Citation Formats
TY - DATA
AB - Operational performance requirements are needed to support development of specifications for downhole motor power sections to be used for drilling hard rock during geothermal wellbore construction. Theoretical torque specifications are derived based upon a widely-accepted rock-reduction model in the literature using representative properties for typical rock formations. The derived values correspond to optimum motor performance for rock reduction at minimum specific energy and form a set of minimum requirements on output torque and power for downhole motors. Actual values should be increased to account for factors such as increased hydrostatic pressure at depth, bit wear, heterogeneous rock, and non-ideal drilling conditions.
AU - Raymond, David W.
DB - Geothermal Data Repository
DP - Open EI | National Renewable Energy Laboratory
DO -
KW - geothermal
KW - motor
KW - downhole
KW - specific energy
KW - torque
KW - power section
KW - bit wear
KW - hydrostatic pressure
KW - heterogeneous rock
KW - heterogeneous geology
KW - non-ideal drilling conditions
KW - poor drilling conditions
KW - operations
KW - performance requirements
KW - motor power sections
KW - drilling
KW - well
KW - wellbore
KW - construction
LA - English
DA - 2014/09/10
PY - 2014
PB - Sandia National Laboratories
T1 - Operational Performance Requirements For Motor Power Sections Used in Geothermal Drilling Based Upon Minimum Specific Energy
UR - https://gdr.openei.org/submissions/446
ER -
Raymond, David W.. Operational Performance Requirements For Motor Power Sections Used in Geothermal Drilling Based Upon Minimum Specific Energy. Sandia National Laboratories, 10 September, 2014, Geothermal Data Repository. https://gdr.openei.org/submissions/446.
Raymond, D. (2014). Operational Performance Requirements For Motor Power Sections Used in Geothermal Drilling Based Upon Minimum Specific Energy. [Data set]. Geothermal Data Repository. Sandia National Laboratories. https://gdr.openei.org/submissions/446
Raymond, David W.. Operational Performance Requirements For Motor Power Sections Used in Geothermal Drilling Based Upon Minimum Specific Energy. Sandia National Laboratories, September, 10, 2014. Distributed by Geothermal Data Repository. https://gdr.openei.org/submissions/446
@misc{GDR_Dataset_446,
title = {Operational Performance Requirements For Motor Power Sections Used in Geothermal Drilling Based Upon Minimum Specific Energy},
author = {Raymond, David W.},
abstractNote = {Operational performance requirements are needed to support development of specifications for downhole motor power sections to be used for drilling hard rock during geothermal wellbore construction. Theoretical torque specifications are derived based upon a widely-accepted rock-reduction model in the literature using representative properties for typical rock formations. The derived values correspond to optimum motor performance for rock reduction at minimum specific energy and form a set of minimum requirements on output torque and power for downhole motors. Actual values should be increased to account for factors such as increased hydrostatic pressure at depth, bit wear, heterogeneous rock, and non-ideal drilling conditions.},
url = {https://gdr.openei.org/submissions/446},
year = {2014},
howpublished = {Geothermal Data Repository, Sandia National Laboratories, https://gdr.openei.org/submissions/446},
note = {Accessed: 2025-04-25}
}
Details
Data from Sep 10, 2014
Last updated Jun 27, 2017
Submitted Sep 10, 2014
Organization
Sandia National Laboratories
Contact
David Raymond
505.844.8026
Authors
Keywords
geothermal, motor, downhole, specific energy, torque, power section, bit wear, hydrostatic pressure, heterogeneous rock, heterogeneous geology, non-ideal drilling conditions, poor drilling conditions, operations, performance requirements, motor power sections, drilling, well, wellbore, constructionDOE Project Details
Project Lead Lauren Boyd
Project Number SNL FY11 AOP3.3
