US 11,735,950 B2
Supplemental power unit for drilling rig
Seetharam Kothuru, Houston, TX (US); Brian McKinney, Katy, TX (US); and Ramakrishna Madhireddy, Houston, TX (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Appl. No. 16/759,442
Filed by SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
PCT Filed Oct. 29, 2018, PCT No. PCT/US2018/057917
§ 371(c)(1), (2) Date Apr. 27, 2020,
PCT Pub. No. WO2019/084530, PCT Pub. Date May 2, 2019.
Claims priority of provisional application 62/577,778, filed on Oct. 27, 2017.
Prior Publication US 2020/0270948 A1, Aug. 27, 2020
Int. Cl. H02J 7/34 (2006.01); H02J 5/00 (2016.01); H02J 15/00 (2006.01); H02J 3/28 (2006.01); E21B 44/00 (2006.01); H02J 7/00 (2006.01)
CPC H02J 7/345 (2013.01) [E21B 44/00 (2013.01); H02J 3/28 (2013.01); H02J 5/00 (2013.01); H02J 7/0047 (2013.01); H02J 15/007 (2020.01); H02J 7/0013 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A system for providing power, the system comprising:
one or more generators configured to provide power;
one or more motors configured to draw the power from the one or more generators to perform one or more operations;
an electrical grid system configured to convey the power from the one or more generators to the one or more motors;
a power unit electrically coupled to the electrical grid system; and
a computing system configured to:
store a well plan, wherein the well plan indicates different power that will be used by the one or more motors at different times, and wherein the well plan includes one or more of: different power that will be used for different regions of a wellbore formation, one or more speed profiles for the different regions of the wellbore formation, and one or more rate of penetration (ROP) for the different regions of the wellbore formation, wherein the well plan describes a future time in which a power need of the one or more motors is greater than available power from the one or more generators;
cause the power unit to selectively draw and store the power from the electrical grid system at least partially in response to the well plan indicating that the power being provided by the one or more generators will be greater than the power being used by the one or more motors, wherein the computing system is configured to instruct the power unit to store sufficient power, from the electrical grid system, for the future time;
cause the power unit to selectively provide the power to the one or more motors to enable the one or more motors to perform one or more of the operations at least partially in response to the well plan indicating that the power being provided by the one more generators will be less than the power being used by the one or more motors, wherein the power provided by the power unit is greater than the power provided by the one or more generators; and
update the well plan in response to an amount of the power drawn and stored, the amount of power provided, or both.