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1. WO1999059002 - SYSTEM AND PROCESS FOR OPTIMIZING GRAVITY GRADIOMETER MEASUREMENTS

Publication Number WO/1999/059002
Publication Date 18.11.1999
International Application No. PCT/US1999/010166
International Filing Date 11.05.1999
Chapter 2 Demand Filed 10.12.1999
IPC
E21B 43/16 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
16Enhanced recovery methods for obtaining hydrocarbons
E21B 43/24 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
16Enhanced recovery methods for obtaining hydrocarbons
24using heat, e.g. steam injection
E21B 47/00 2012.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47Survey of boreholes or wells
G01V 7/00 2006.01
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
7Measuring gravitational fields or waves; Gravimetric prospecting or detecting
CPC
E21B 43/16
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
16Enhanced recovery methods for obtaining hydrocarbons
E21B 43/24
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
16Enhanced recovery methods for obtaining hydrocarbons
24using heat, e.g. steam injection
E21B 47/00
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
G01V 7/00
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
7Measuring gravitational fields or waves; Gravimetric prospecting or detecting
Applicants
  • LOCKHEED MARTIN CORPORATION [US]/[US]
Inventors
  • SCHWEITZER, Melvin
  • FELDMAN, Walter, K.
  • KONIG, William, F.
  • DIFRANCESCO, Daniel, J.
  • SIERACKI, David, L.
  • SAN GIOVANNI, Carlo, P.
Agents
  • SNIDER, Ronald, R.
Priority Data
60/085,05912.05.1998US
60/099,93711.09.1998US
60/107,32906.11.1998US
60/107,36606.11.1998US
60/109,13818.11.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND PROCESS FOR OPTIMIZING GRAVITY GRADIOMETER MEASUREMENTS
(FR) SYSTEME ET PROCEDE D'OPTIMISATION DES MESURES DE GRADIENTS DE PESANTEUR
Abstract
(EN)
Gravity gradient measurements taken by an accelerometer type gradiometer are optimized by tilting the measuring plane of the instrument by a selected angle above and below the horizontal to obtain data that can be differenced or otherwise processed to remove instrument bias and by taking data at first and then at a second orthogonal azimuth heading to obtain absolute non-relative gradient measurements.
(FR)
On procède à l'optimisation des mesures de gradients de pesanteur prises par un accéléromètre de type gradiomètre en basculant le plan de mesure de l'instrument d'un angle sélectionné au-dessus et en-dessous de l'horizontale de façon à obtenir des données qui peuvent servir au calcul de différences ou bien être traitées pour supprimer le biais introduit par l'instrument et en effectuant des mesures au niveau d'une première direction puis d'une seconde direction azimutale orthogonale afin d'obtenir des mesures de gradients non relatives et absolues.
Also published as
DE19983216
Latest bibliographic data on file with the International Bureau