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When oil is produced to surface temperature and pressure it is usual for some natural gas to come out of solution. The gas/oil ratio (GOR) is the ratio of the volume of gas ("scf") that comes out of solution to the volume of oil — at standard conditions. In reservoir simulation gas/oil ratio is usually abbreviated .
In regard to fossil fuels, when oil was originally discovered, it took on average one barrel of oil to find, extract, and process about 100 barrels of oil. The ratio, for discovery of fossil fuels in the United States, has declined steadily over the last century from about 1000:1 in 1919 to only 5:1 in the 2010s. [2]
Some statistics on this page are disputed and controversial—different sources (OPEC, CIA World Factbook, oil companies) give different figures. Some of the differences reflect different types of oil included. Different estimates may or may not include oil shale, mined oil sands or natural gas liquids.
is a gas formation volume factor (ratio of some volume of reservoir vapor to the volume of gas at standard conditions obtained from the same volume of reservoir vapor), R S {\displaystyle R_{S}} is a solution of gas in oil phase (ratio of volume of gas to the volume of oil at standard conditions obtained from some amount of liquid phase at ...
Ratio of world proved oil reserves to production, 1980–2011 (US EIA) Ratio of world proved gas reserves to production, 1980–2011. The reserves-to-production ratio is the most widely quoted of the key indicators used in the oil and gas industry.
TGOR – total gas oil ratio (GOR uncorrected for gas lift gas present in the production fluid [citation needed]) TH – tubing hanger; THCP – tubing hanger crown plug; Thr/Th# – thruster ('#'- means identification letter/number of the equipment, e.g. thr3 or thr#3 means "thruster no. 3" [citation needed]) THD – tubing head; THERM ...
In 1970, local peak production was 10,044 million bbl (1,597 million m 3) per day in November 1970. [8] Total production of crude oil from 1970 through 2006 was 102 billion barrels (16.2 × 10 ^ 9 m 3), or roughly five and a half times the proved reserves over the same timeframe when taking into account the decreasing proved reserves.
The Dan field was discovered in May 1971 by the Britannia oil rig in Denmark Block 7.3 of the North Sea. [1] The reservoir is an Upper Cretaceous Danian chalk at a depth of 5,800 to 6,400 feet (1,768 to 1,951 metres). The oil has an API gravity of 30.4 and a gas oil ratio of 600 standard cubic feet per barrel (scf/bbl). The estimated ...