Torgeir Torkildsen

发表

Directional Surveying: Rotating and Sliding Operations Give Different Wellbore Position Accuracy

Jon Bang, Torgeir Torkildsen, Jon Bang, 2000 .

Target Design Based Upon Multidisciplinary Uncertainty Information

Torgeir Torkildsen, Per Kristian Munkerud, Ivar Haarstad, 2002 .

High-Integrity Wellbore Surveying

John Lionel Weston, Roger Ekseth, Torgeir Torkildsen, 2010 .

The Design of BHA and the Placement of the Magnetometer Sensors Influence How Magnetic Azimuth is Distorted by the Magnetic Properties of Drilling Fluids

Arild Saasen, Tor Inge Waag, Torgeir Torkildsen, 2012 .

Local-geomagnetic-field modeling improves directional surveying

Tor Inge Waag, Torgeir Torkildsen, O. H. Inderhaug, 2000 .

The Design of BHA and the Placement of Magnetometer Sensors Influence How Magnetic Azimuth Is Distorted by the Magnetic Properties of Drilling Fluids

Arild Saasen, Tor Inge Waag, Torgeir Torkildsen, 2012 .

Analyses of the Accuracy and Reliability of Magnetic Directional Surveys

Torgeir Torkildsen, Erik Nyrnes, 2005 .

Shielding of Directional Magnetic Sensor Readings in a Measurement While Drilling Tool for Oil Well Positioning

Arild Saasen, Torgeir Torkildsen, Per Amund Amundsen, 2006 .

Drilling Fluid affects MWD Magnetic Azimuth and Wellbore Position

Arild Saasen, Tor Henry Omland, Torgeir Torkildsen, 2004 .

Prediction of Wellbore Position Accuracy When Surveyed With Gyroscopic Tools

Stein Tjelta Havardstein, Roger Ekseth, Torgeir Torkildsen, 2008 .

Magnetic Shielding During MWD Azimuth Measurements and Wellbore Positioning

Arild Saasen, Biplab K. Datta, Torgeir Torkildsen, 2008 .

Prediction of Wellbore Position Accuracy When Surveyed With Gyroscopic Tools

Stein Tjelta Havardstein, Roger Ekseth, Torgeir Torkildsen, 2008 .

Magnetic Shielding During MWD Azimuth Measurements and Wellbore Positioning

Arild Saasen, Biplab K. Datta, Torgeir Torkildsen, 2010 .

The Effect of Drilling Fluid Content on Magnetic Shielding of Downhole Compasses in MWDs

Arild Saasen, Torgeir Torkildsen, Arild Fjogstad, 2012 .

The reliability problem related to directional survey data

Andrew G. Brooks, Roger Ekseth, Torgeir Torkildsen, 2006 .

Minimum Requirements for Multi-Station Analysis of MWD Magnetic Directional Surveys

Torgeir Torkildsen, Harry Wilson, Erik Nyrnes, 2009 .

Wellbore Anti-Collision Safety: Separation Distances Must Be Increased Due To Degraded Positioning Accuracy In Northern Areas

Jon Bang, Torgeir Torkildsen, 2011 .

Targeting Challenges in Northern Areas due to Degradation of Wellbore Positioning Accuracy.

Jon Bang, Stein Tjelta Havardstein, Torgeir Torkildsen, 2009 .