Gas-Oil Ratio

gas-oil ratio

[¦gas ¦ȯil ‚rā·shō]
(petroleum engineering)
Approximation of oil-reservoir composition, expressed in cubic feet of gas per barrel of liquid at 14.7 psia and 60°F (15.6°C).

Gas-Oil Ratio

 

the ratio between the amount of gas (in cu m) obtained from a deposit through a well, reduced to atmospheric pressure and a temperature of 20° C, and the amount of petroleum (in tons or cu m) extracted at the same time under the same pressure and temperature. The gas-oil ratio depends on the proportions of gas and petroleum in the stratum, the physical and geological properties of the stratum, the type and rate of operation, the pressure in the stratum, and so on. The gas-oil ratio is an important indicator of the expenditure of reservoir energy and the determination of gas resources in a petroleum deposit.

References in periodicals archive ?
Figure 5 presents the gas-oil ratio (GOR) and the oil saturation inside and out of the channel at the half of interwell distance.
In order to enhance oil production and the gas-oil ratio, Saudi Aramco selected GE for agreements totaling nearly $500 million to supply a broad range of equipment and services for an expansion of the Shaybah gas-oil processing facilities.
Crude oil density and viscosity is strongly dependent on solution gas-oil ratio or gas solubility (Rs).
This kind of traditional measurement method can no longer guarantee the precision during high water cut stage due to the extensive variation of water content and gas-oil ratio, bringing much inconvenience to the operation management.
The new expansion is expected to enable Saudi Aramco to further increase crude production to 1 million bpd and increase the gas-oil ratio (GOR) of the field from 1,800 to 7,200 standard cubic feet per stock tank barrel (scf/stb).
The new expansion is expected to enable Saudi Aramco to further increase crude production to one million barrels per day and increase the gas-oil ratio (GOR) of the field from 1,800 to 7,200 standard cubic feet per stock tank barrel (scf/stb).
The amount of gas in the oil is referred to as the solution gas-oil ratio ("GOR"), measured in cubic feet per bbl.
The amount of gas in the reservoir fluid is usually expressed as the gas-oil ratio, GOR, and is mainly given in U.S.
The first type which refers to black oil type correlations predict viscosities from available field-measured variables include reservoir temperature, oil API gravity, solution gas-oil ratio, saturation pressure and pressure [1-9].
TABLE 1 SUMMARY OF MAJOR INPUT AND OUTPUT DATA OF THE INTEGRATED MODEL Input Data: Resource/Physical Input OCS region Field size Gas-oil ratio Water depth Drilled depth Exploration and development dry hole rates Financial Input Oil and gas prices Discount rate Royalty rate Federal and state tax rates Depreciation life Bid factor Environmental Compliance Cost Input Drilling fluids and cuttings Produced water Air pollution Output Data: Oil and gas produced Bonus payment Royalty payment Federal and state tax payments Cash flows and ATNPV Since the model is rich in detail, many policy analyses can be carried out.
This estimated decrease reflects normal declines from the larger-than-expected increase in natural gas production attained in the first quarter of 2019, as well as the possible need, from time to time, to shut-in certain of its higher gas-oil ratio wells in the Delaware Basin in response to natural gas prices in the Delaware Basin.
The high-pressure physical properties of formation oil and gas are as shown in Figure 3, including crude oil viscosity, gas viscosity, oil volume factor, gas volume factor, and solution gas-oil ratio; the fluid relative permeability data are as shown in Figure 4 which shows the crude oil and water two-phase relative permeability curve and Figure 5 which shows gas and fluid two-phase relative permeability curve, and the three-phase relative permeability data are obtained by Stone I model calculation [18].