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1. WO1991000414 - ANALYZING A HYDROCARBON RESERVOIR BY DETERMINING THE RESPONSE OF THAT RESERVOIR TO TIDAL FORCES

Publication Number WO/1991/000414
Publication Date 10.01.1991
International Application No. PCT/US1990/003743
International Filing Date 29.06.1990
IPC
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
E21B 49/00 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
49Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling 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 47/00
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
E21B 49/00
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
49Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
G01V 7/00
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
7Measuring gravitational fields or waves; Gravimetric prospecting or detecting
Applicants
  • CHEVRON RESEARCH AND TECHNOLOGY COMPANY [US/US]; Post Office Box 7141 San Francisco, CA 94120-7141, US (AllExceptUS)
  • GRAEBNER, Peter [US/US]; US (UsOnly)
Inventors
  • GRAEBNER, Peter; US
Agents
  • SCHAAL, Ernest, A. ; Chevron Corporation Post Office Box 7141 San Francisco, CA 94120-7141, US
Priority Data
374,19329.06.1989US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ANALYZING A HYDROCARBON RESERVOIR BY DETERMINING THE RESPONSE OF THAT RESERVOIR TO TIDAL FORCES
(FR) ANALYSE D'UN RESERVOIR POUR HYDROCARBURE PAR DETERMINATION DE LA REPONSE DE CE RESERVOIR AUX FORCES ENGENDREES PAR LA MAREE
Abstract
(EN)
A method is disclosed for determining a component of the response of a reservoir to tidal forces (such as the amplitude of variation or delay time) in a hydrocarbons reservoir. That method comprises measuring a variable responsive to tidal forces within the reservoir over a measurement time period, determining a theoretical earth-tide for the reservoir over that measurement time period, and determining the component of the response to tidal forces by comparing the variable measurements and the theoretical earth-tide determinations. Examples of variables that are responsive to the tidal forces are fluid level in a borehole, pressure, and borehole stress. The measurement time period should be sufficiently long so that both a maximum and a minimum variable measurement are achieved during that time period (e.g., fourteen or twenty-four hours).
(FR)
L'invention concerne un procédé de détermination d'une composante de la réponse d'un réservoir aux forces de la marée (telle que l'amplitude de variation ou temps de retard) dans un réservoir d'hydrocarbure. Le procédé consiste à mesurer une variable sensible aux forces de la marée à l'intérieur du réservoir sur une période de temps de mesure, à déterminer une valeur théorique terre-marée pour le réservoir pendant cette période de temps de mesure, et à déterminer la composante de la réponse aux forces de la marée en comparant les mesures variables et les déterminations théoriques terre-marée. Des exemples de variables qui sont sensibles aux forces de la marée sont le niveau d'un fluide dans un trou de forage, la pression et les contraintes dans un trou de forage. La période de temps de mesure devrait être suffisament longue de sorte que l'on prenne une mesure de variable maximum et minimum pendant cette période de temps (p.ex. 14 ou 24 heures).
Also published as
NO19910777
Latest bibliographic data on file with the International Bureau