FIELD: oil-and-gas industry.
SUBSTANCE: invention relates to geophysical research, particularly, to drilling well inclination measurements. Proposed method comprises measuring magnetic azimuth with the help of three mutually perpendicular magnetosensitive transducers and processing of obtained data. Note here that axes of sensitivity of aforesaid transducers are located along generating line of cone the axis of which is aligned with wellbore instrument axis. Magnetic field components are measured, magnetic field vector modulus is calculated. Then aforesaid components are consecutively decreased by one and the same value till said modulus calculated from corrected values of magnetic field vector are equal to modulus of magnetic field of the Earth. Said values are used to determine actual azimuth of the well.
EFFECT: higher accuracy of measurements due to elimination of influence of magnetic fields of drill column.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MAGNETIC AZIMUTH MEASUREMENT WHILE DRILLING | 2007 |
|
RU2349938C1 |
| METHOD FOR MEASURING MAGNETIC AZIMUTH IN WELL INCLINATION METER (VARIANTS) AND DEVICE FOR REALIZATION OF METHOD | 2005 |
|
RU2290673C2 |
| FERRO-PROBE WELL TILT METER | 2005 |
|
RU2291294C1 |
| METHOD FOR DOWNHOLE DIRECTIONAL SURVEY AND DOWNHOLE SYSTEM FOR IMPLEMENTATION THEREOF | 2021 |
|
RU2770874C1 |
| METHOD TO DEFINE MAGNETIC AZIMUTH IN WELL INCLINOMETER IN PROCESS OF DRILLING | 2014 |
|
RU2586341C2 |
| WELL MAGNETIC MEASUREMENTS DURING ROTATION AND METHODS OF THEIR USE | 2010 |
|
RU2566537C2 |
| METHOD FOR DETERMINING ORIENTATION OF AN OBJECT IN STOP POINT | 1993 |
|
RU2062872C1 |
| DRILLING METHOD AND SYSTEM WITH AUTOMATED WAYPOINT OR BOREHOLE PATH UPDATES BASED ON SURVEY DATA CORRECTIONS | 2014 |
|
RU2657033C2 |
| INCLINOMETER (VERSIONS) | 1998 |
|
RU2134427C1 |
| METHOD FOR INCREASING THE INCLINOMETRY ACCURACY IN PROCESS OF DRILLING OIL-AND-GAS WELLS AND DEVICE FOR ITS IMPLEMENTATION | 2021 |
|
RU2758931C1 |
