| Patent Number |
Title Of Patent |
Date Issued |
| 7172037 |
Real-time drilling optimization based on MWD dynamic measurements |
February 6, 2007 |
| A drilling control system provides, in one aspect, advisory actions for optimal drilling. Such a system or model utilizes downhole dynamics data and surface drilling parameters, to produce drilling models used to provide to a human operator with recommended drilling parameters for op |
| 6847585 |
Method for acoustic signal transmission in a drill string |
January 25, 2005 |
| The present invention is a method of transmitting one or more acoustic signals in a drill string using PSK, ASK, FSK or MSFK. The method includes determining one or more stopbands and one or more passbands by testing or modeling the drill string. Two modulating frequencies are selected t |
| 6732052 |
Method and apparatus for prediction control in drilling dynamics using neural networks |
May 4, 2004 |
| The present invention provides a drilling system that utilizes a neural network for predictive control of drilling operations. A downhole processor controls the operation of the various devices in a bottom hole assembly to effect changes to drilling parameters and drilling direction |
| 5321981 |
Methods for analysis of drillstring vibration using torsionally induced frequency modulation |
June 21, 1994 |
| Torsional oscillations of the drillstring will lead to frequency modulation (FM) of the signal from a vibratory source (e.g., the bit). This results, in the frequency domain, in sidebands being present around a detected excitation frequency. In accordance with the present invention, it h |
