Truncated shifted pareto distribution in assessing size distribution of oil and gas fields

Conference · Tue Nov 01 00:00:00 EST 1988 · J. Int. Assoc. Math. Geol.; (United States)

OSTI ID:6440478

Houghton, J C

The truncated shifted Pareto (TSP) distribution, a variant of the two-parameter Pareto distribution, in which one parameter is added to shift the distribution right and left and the right-hand side is truncated, is used to model size distributions of oil and gas fields for resource assessment. Assumptions about limits to the left-hand and right-hand side reduce the number of parameters to two. The TSP distribution has advantages over the more customary lognormal distribution because it has a simple analytic expression, allowing exact computation of several statistics of interest, has a J-shape, and has more flexibility in the thickness of the right-hand tail. Oil field sizes from the Minnelusa play in the Powder River Basin, Wyoming and Montana, are used as a case study. Probability plotting procedures allow easy visualization of the fit and help the assessment.

• Research Organization: Geological Survey, Reston, VA (USA)
• OSTI ID: 6440478
• Report Number(s): CONF-8704137-
• Journal Information: J. Int. Assoc. Math. Geol.; (United States), Vol. 20:8; Conference: MGUS '87, Redwood City, CA, USA, 13 Apr 1987
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
NATURAL GAS DEPOSITS
SPATIAL DISTRIBUTION
PETROLEUM DEPOSITS
POWDER RIVER BASIN
RESOURCE ASSESSMENT
EXPLORATION
GAS YIELDS
MAXIMUM-LIKELIHOOD FIT
OIL YIELDS
PROBABILISTIC ESTIMATION
PROBABILITY
SIZE
STATISTICAL MODELS
STATISTICS
DISTRIBUTION
FEDERAL REGION VIII
GEOLOGIC DEPOSITS
MATHEMATICAL MODELS
MATHEMATICS
MINERAL RESOURCES
MONTANA
NORTH AMERICA
NUMERICAL SOLUTION
RESOURCES
USA
WYOMING
YIELDS
020100* - Petroleum- Reserves- (-1989)
030100 - Natural Gas- Reserves- (-1989)