| contributor author | Per A. Amundsen | |
| contributor author | Torgeir Torkildsen | |
| contributor author | Arild Saasen | |
| date accessioned | 2017-05-09T00:19:39Z | |
| date available | 2017-05-09T00:19:39Z | |
| date copyright | December, 2006 | |
| date issued | 2006 | |
| identifier issn | 0195-0738 | |
| identifier other | JERTD2-26540#343_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/133577 | |
| description abstract | Magnetic materials in the drilling fluid used for drilling a petroleum well can significantly shield the Earth’s magnetic field as measured by magnetic sensors inside the drilling pipe. This has been shown to sometimes cause significant errors in the accuracy of borehole positioning using magnetic surveying. In this paper we present a physical approach for correcting the measured magnetic fields for such shielding. An explicit solution of the shielding problem is derived for the simplest case of a magnetic sensor on the axis of the borehole. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Shielding of Directional Magnetic Sensor Readings in a Measurement While Drilling Tool for Oil Well Positioning | |
| type | Journal Paper | |
| journal volume | 128 | |
| journal issue | 4 | |
| journal title | Journal of Energy Resources Technology | |
| identifier doi | 10.1115/1.2358151 | |
| journal fristpage | 343 | |
| journal lastpage | 345 | |
| identifier eissn | 1528-8994 | |
| keywords | Fluids | |
| keywords | Magnetic fields | |
| keywords | Drilling | |
| keywords | Magnetic sensors | |
| keywords | Oil wells AND Pipes | |
| tree | Journal of Energy Resources Technology:;2006:;volume( 128 ):;issue: 004 | |
| contenttype | Fulltext | |