Definitions And Guidelines For Classification of Oil And Gas Reserves

DeSorcy, G. J.; Warne, George A.; Ashton, B.R.; Campbell, G. R.; Collyer, D.R.; Drury, J.; Lang, Reg; Robertson, W.D.; Robinson, J.G.; Tutt, D.W.

doi:10.2118/93-00

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different certainty values have also been used (e.g. the Petroleum Society of Canada proposed using a certainty value of 80 per cent for proven reserves (Desorcy, et al, 1993)). …”

Section: Opec Reviewmentioning

confidence: 99%

“…According to the Canadian Reserves Definition Committee (Desorcy, et al, 1993) conventional oil is defined as crude oil that, at a particular time, can be technically and economically produced through a well, using normal production practice and without altering the natural viscous state of the oil. This highly restrictive definition seems to exclude nearly all the additional oil recovery by EOR processes.…”

Section: Non-conventional Oilmentioning

confidence: 99%

See 1 more Smart Citation

World Oil Reserves: Problems In Definition And Estimation

Haider¹

2000

OPEC Review

View full text Add to dashboard Cite

Various controversial issues relating to the definition and interpretation of the term proven reserves are cited and discussed. Furthermore, reserve figures published in oil industry periodicals and trade journals are reviewed and analyzed. Original reserves (reserves plus cumulative production) of non-OPEC countries seem to increase almost linearly with time, especially since the early 1980s, with an average rate of rise of 15 billion barrels per annum. The OPEC trend, however, is rather distorted by irregular revisions, and the rate of additions to reserves in non-OPEC countries seems to have surpassed OPEC countries during the 1990s. Nevertheless, OPEC, with its easily accessible low-cost oil, will very likely continue to be the paramount source of world oil for many decades.

show abstract

“…Different certainty values have also been used (e.g. the Petroleum Society of Canada proposed using a certainty value of 80 per cent for proven reserves (Desorcy, et al, 1993)). …”

Section: Opec Reviewmentioning

confidence: 99%

Section: Non-conventional Oilmentioning

confidence: 99%

World Oil Reserves: Problems In Definition And Estimation

Haider¹

2000

OPEC Review

View full text Add to dashboard Cite

show abstract

Determination of the Aquifer Activity Level and the Recovery of Water Drive Gas Reservoirs

Zhang

Yang

et al. 2010

All Days

View full text Add to dashboard Cite

The judgment of the aquifer activity level and the recovery of waterdrive gas reservoir are intricate and crucial. The paper is to develop a new criterion to determine the aquifer activity level and a new chart method demarcating the range of recovery variation. In the first place, reasoning and defining the new criterion of the determinate aquifer activity level is obtained by water influx coefficient B, based on the material balance equation of water drive gas reservoirs and the study of previous scholars. Thus a theoretical curve equation and a suppositional curve equation are derived and defined. The former one is pr(1-RgB)=1-Rg, which shows the relationship between the relative pressure pr and the degree of reserve recovery value Rg with different B. The latter one, pra=(1-ER)/(1-aEva)(where a=Sgr/Sgi), relates to the ratio of residual gas saturation and original gas saturation Sgr/Sgi, the ultimate volumetric sweep efficiency Eva and represents the relation between the relative abandonment pressure pra and the recovery ER. Finally, a set of charts is established by the two equations, by which we can set up a table to determine the variation range of the recovery with corresponding Sgr/Sgi value and Eva value when the aquifer is at different activity level.

show abstract

Definitions And Guidelines For Classification of Oil And Gas Reserves

Cited by 2 publications

References 0 publications

World Oil Reserves: Problems In Definition And Estimation

World Oil Reserves: Problems In Definition And Estimation

Determination of the Aquifer Activity Level and the Recovery of Water Drive Gas Reservoirs

Contact Info

Product

Resources

About