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US 7,938,197 B2Granted
Automated MSE-based drilling apparatus and methods
AssigneeCanrig Drilling Technology Ltd.
InventorsScott Boone, Brian Ellis, Beat Kuttel, Chris Papouras, John Thomas Scarborough
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Abstract
Methods and apparatus for MSE-based drilling operation and/or optimization, comprising detecting MSE parameters, utilizing the MSE parameters to determine MSE, and automatically adjusting drilling operational parameters as a function of the determined MSE.
Claims12
A method for mechanical specific energy (MSE)-based drilling operation, comprising:
- drilling through a first interval utilizing a first weight-on-bit (WOB);
- determining automatically a first MSE corresponding to drilling utilizing the first WOB;
- drilling through a second interval utilizing a second WOB that is different than the first WOB;
- determining automatically a second MSE corresponding to drilling utilizing the second WOB;
- and
- drilling through a third interval utilizing one of the first WOB and the second WOB which is automatically selected based on an automated comparison of the first MSE and the second MSE.
3 more elements
An apparatus for mechanical specific energy (MSE)-based drilling operation, comprising:
- means for controlling drilling through a first interval utilizing a first weight-on-bit (WOB);
- means for automatically determining a first MSE corresponding to drilling through the first interval utilizing the first WOB;
- means for controlling drilling through a second interval utilizing a second WOB that is different than the first WOB;
- means for automatically determining a second MSE corresponding to drilling through the second interval utilizing the second WOB;
- means for automatically comparing the first MSE and the second MSE and automatically selecting one of the first WOB and the second WOB as a function of the automated comparison of the first MSE and the second MSE;
- and
- means for controlling drilling through a third interval utilizing the automatically selected one of the first WOB and the second WOB.
4 more elements
An apparatus, comprising:
- a top drive configured to rotate a drill string within a wellbore;
- a drawworks configured to vertically translate the top drive to alter the axial position of the drill string within the wellbore;
- and
- a controller configured to receive a plurality of mechanical specific energy (MSE) parameters, then automatically determine MSE, and then automatically generate and transmit control signals to the top drive and the drawworks to control actuation of the top drive and the drawworks, wherein the controller is configured to automatically generate the control signals based at least partially on the automatically determined MSE.
- wherein the controller is configured to:
- control actuation of the top drive and the drawworks during drilling through a first interval utilizing a first weight-on-bit (WOB);
- automatically determine a first MSE corresponding to drilling through the first interval utilizing the first WOB;
- control actuation of the top drive and the drawworks during drilling through a second interval utilizing a second WOB that is different than the first WOB;
- automatically determine a second MSE corresponding to drilling through the second interval utilizing the second WOB;
- and
- control actuation of the top drive and the drawworks during drilling through a third interval utilizing one of the first WOB and the second WOB which is automatically selected based on an automated comparison of the first MSE and the second MSE.
8 more elements
Dependencies are inferred from the claim text.