Systems and Methods for Optimizing Rate of Penetration in Drilling Operations
AssigneeSaudi Arabian Oil Company
InventorsMohammed Murif Al-Rubaii, Ossama R. Sehsah, Eno Itam Omini
Life of this patent
Estimating the term…
Abstract
Systems and methods for predicting an efficient hole cleaning in vertical, deviated, and horizontal holes by developing a hole cleaning model that combines hole cleaning and drilling rate to optimize performance. Specifically by ensuring optimum mud rheology values that have an influence on drilling mud from the aspects of ECD, cuttings transport, shear thinning, and thixotropic, and developing an effective hole cleaning model by utilizing carrying capacity index (CCI) and cutting concentration in annulus (CCA).
Claims20
A method of drilling a borehole with a drill tool of a drilling system that uses drilling mud to transport cuttings of a formation to surface, the method comprising:
- receiving a plurality of input parameters of a drilling operation conducted with the drilling system, the input parameters at least including a cuttings parameter related to the cuttings produced in the drilling operation;
- determining a current concentration of the cuttings in the drilling operation at least near the drill tool based on the obtained parameters;
- determining a desired rate of penetration for the drilling operation based on the determined concentration;
- and
- altering a current rate of penetration based on the determined rate.
A drilling system for drilling a borehole with a drill tool using drilling mud to transport cuttings of a formation to surface, the system comprising:
- storage storing historical information;
- an interface obtaining a plurality of parameters of a drilling operation conducted with the drilling system, the input parameters at least including a cuttings parameter related to the cuttings produced in the drilling operation;
- and
- a processing unit in communication with the storage and the interface and configured to:
- receive a plurality of input parameters of a drilling operation conducted with the drilling system, the input parameters at least including a cuttings parameter related to the cuttings produced in the drilling operation;
- determine a current concentration of the cuttings in the drilling operation at least near the drill tool based on the obtained parameters;
- determine a desired rate of penetration for the drilling operation based on the determined concentration;
- and
- alter a current rate of penetration based on the determined rate.
Dependencies are inferred from the claim text.