NANCY B DAVIS, ACNS
Physician Assistant at Fielder Rd, Arlington, TX
License number
Texas 544108
Category
Physician Assistant
Type
Adult Health
Address
Address
707 N Fielder Rd SUITE A, Arlington, TX 76012
Phone
(817) 277-2671
(817) 460-3004 (Fax)
(817) 460-3004 (Fax)
Professional information
Regent At Lucretia Council Cochran Chapter, Nsdar
Position:
Regent at Lucretia Council Cochran Chapter, NSDAR
Location:
Dallas/Fort Worth Area
Industry:
Civic & Social Organization
Work:
Lucretia Council Cochran Chapter, NSDAR
- Arlington, TX since May 2010
-
Regent
Education:
The University of Texas at Austin
BS, Advertising
BS, Advertising
Integrated Geomechanics Determinations And Wellbore Pressure Control
US Patent:
2011029, Dec 1, 2011
Filed:
Oct 5, 2009
Appl. No.:
13/144321
Inventors:
William Bradley Standifird - Richmond TX, US
Syed AiJaz Rizvi - Sugar Land TX, US
Xiaomin Hu - Missouri City TX, US
James R. Lovorn - Tomball TX, US
Sara Shayegi - Houston TX, US
Nancy Davis - Arlington TX, US
Jeremy Greenwood - Houston TX, US
Syed AiJaz Rizvi - Sugar Land TX, US
Xiaomin Hu - Missouri City TX, US
James R. Lovorn - Tomball TX, US
Sara Shayegi - Houston TX, US
Nancy Davis - Arlington TX, US
Jeremy Greenwood - Houston TX, US
Assignee:
HALLIBURTON ENERGY SERVICES, INC. - Houston TX
International Classification:
E21B 7/00
US Classification:
175 57
Abstract:
Well pressure control is integrated in real time with geomechanics determinations made during drilling. A well drilling method includes updating determinations of properties of a formation surrounding a wellbore in real time as the wellbore is being drilled; and controlling wellbore pressure in real time as the wellbore is being drilled, in response to the updated determinations of the formation properties. Another well drilling method includes obtaining sensor measurements in a well drilling system in real time as a wellbore is being drilled; transmitting the sensor measurements to a control system in real time; the control system determining in real time properties of a formation surrounding the wellbore based on the sensor measurements, and the control system transmitting in real time a pressure setpoint to a controller; and the controller controlling operation of at least one flow control device, thereby influencing a well pressure toward the pressure setpoint.
Pressure And Flow Control In Drilling Operations
US Patent:
8286730, Oct 16, 2012
Filed:
Feb 8, 2011
Appl. No.:
13/022964
Inventors:
Charles M. Pool - Bedford TX, US
Nancy Davis - Arlington TX, US
Frank Urias - Plano TX, US
Neal G. Skinner - Lewisville TX, US
Nancy Davis - Arlington TX, US
Frank Urias - Plano TX, US
Neal G. Skinner - Lewisville TX, US
Assignee:
Halliburton Energy Services, Inc. - Houston TX
International Classification:
E21B 10/22
US Classification:
175 50, 703 7, 714E11025
Abstract:
A method of maintaining a desired downhole pressure during a drilling operation can include measuring a parameter with a sensor, communicating actual parameter values from the sensor to a predictive device, training the predictive device to output predicted parameter values in response to input of the actual parameter values, and outputting the predicted parameter values from the predictive device when the predictive device ceases receiving the actual parameter values. A well drilling system can include a predictive device which outputs predicted parameter values in response to input of actual parameter values to the predictive device. The predictive device continues to output the predicted parameter values, even when the predictive device fails to receive valid actual parameter values. Another well drilling system includes a data validator which communicates valid actual parameter values to the predictive device, but does not communicate invalid actual parameter values to the predictive device.
Annulus Pressure Setpoint Correction Using Real Time Pressure While Drilling Measurements
US Patent:
8240398, Aug 14, 2012
Filed:
May 26, 2011
Appl. No.:
13/116082
Inventors:
James R. Lovorn - Tomball TX, US
Saad Saeed - Houston TX, US
Nancy Davis - Arlington TX, US
Saad Saeed - Houston TX, US
Nancy Davis - Arlington TX, US
Assignee:
Halliburton Energy Services, Inc. - Houston TX
International Classification:
E21B 21/08
US Classification:
175 38, 175 48
Abstract:
A method of controlling pressure in a wellbore can include determining a real time wellbore pressure Pwbat a pressure sensor in the wellbore, calculating hydrostatic pressure Phat the pressure sensor, determining a real time annulus pressure Pa, calculating friction pressure Pf due at least to circulation of the fluid through the wellbore and depth in the wellbore, calculating a friction pressure correction factor CFequal to (Pwb−Ph−Pa)/Pf, and controlling operation of a pressure control device, based on the friction pressure correction factor CF. The method can further include determining a desired wellbore pressure Pwbat the pressure sensor, calculating an annulus pressure setpoint Paequal to Pwb−Ph−(Pf*CF, and adjusting the pressure control device as needed to maintain Paequal to Pa.