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"ENGEBRETSON, HAROLD J"
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"ENGEBRETSON, HAROLD J"
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Method of determining differential azimuth from spaced-apart gravity component measurements
by
HAROLD J ENGEBRETSON
,
BRETT H VAN STEENWYK
Year of Publication
16.05.2007
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Method and apparatus for determining the orientation of the axis of a borehole
by
ENGEBRETSON
,
HAROLD
,
J
Year of Publication
03.12.1997
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Method for computation of differential azimuth from spaced-apart gravity component measurements
by
Engebretson
,
Harold J
,
Van Steenwyk, Brett H
Year of Publication
18.04.2006
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Method for computation of differential azimuth from spaced-apart gravity component measurements
by
VAN STEENWYK BRETT H
,
ENGEBRETSON HAROLD J
Year of Publication
18.04.2006
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Determining differential azimuth in a borehole
by
HAROLD J ENGEBRETSON
,
BRETT H VAN STEENWYK
Year of Publication
02.11.2005
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Calibration correction method for magnetic survey tools
by
HAROLD J ENGEBRETSON
Year of Publication
22.01.1997
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Method for computation of differential azimuth from spaced-apart gravity component measurements
by
VAN STEENWYK BRETT H
,
ENGEBRETSON HAROLD J
Year of Publication
27.10.2005
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METHOD FOR COMPUTATION OF DIFFERENTIAL AZIMUTH FROM SPACED-APART GRAVITY COMPONENT MEASUREMENTS
by
ENGEBRETSON
,
HAROLD J
,
VAN STEENWYK, BRETT H
Year of Publication
27.10.2005
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Calibration correction method for magnetic survey tools
by
HAROLD J ENGEBRETSON
Year of Publication
31.08.1994
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CALIBRATION CORRECTION METHOD FOR MAGNETIC SURVEY TOOLS
by
ENGEBRETSON
,
HAROLD J
Year of Publication
27.08.1994
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Calibration correction method for magnetic survey tools
by
ENGEBRETSON
;
HAROLD J
Year of Publication
21.06.1994
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ERROR REDUCTION IN COMPENSATION OF DRILL STRING INTERFERENCE FOR MAGNETIC SURVEY TOOLS
by
ENGEBRETSON
,
HAROLD
,
J
Year of Publication
07.06.1994
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ERROR REDUCTION IN COMPENSATION OF DRILL STRING INTERFERENCE FOR MAGNETIC SURVEY TOOLS
by
HAROLD J ENGEBRETSON
Year of Publication
21.10.1992
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ERROR REDUCTION IN COMPENSATION OF DRILL STRING INTERFERENCE FOR MAGNETIC SURVEY TOOLS
by
ENGEBRETSON
,
HAROLD
,
J
Year of Publication
01.10.1992
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ERROR REDUCTION IN COMPENSATION OF DRILL STRING INTERFERENCE FOR MAGNETIC SURVEY TOOLS
by
ENGEBRETSON
,
HAROLD J
Year of Publication
22.09.1992
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Borehole surveying employing ring laser gyroscope
by
ENGEBRETSON
;
HAROLD J
Year of Publication
17.06.1986
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BOREHOLE AZIMUTH DETERMINATION USING MAGNETIC FIELD SENSOR
by
ENGEBRETSON
,
HAROLD J
Year of Publication
24.09.1985
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Borehole azimuth determination using magnetic field sensor
by
ENGEBRETSON
;
HAROLD J
Year of Publication
25.09.1984
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WELL MAPPING APPARATUS
by
HAROLD J ENGEBRETSON
Year of Publication
18.01.1984
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ERROR REDUCTION IN COMPENSATION OF DRILL STRING INTERFERENCE FOR MAGNETIC SURVEY TOOLS
by
ENGEBRETSON
,
HAROLD
,
J
Year of Publication
21.09.1994
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