The Volumetric Method Assignment Help
The Volumetric Method
The volumetric equation is useful in reserve work for estimating gas in place at any stage of depletion. During the development period before reservoir limits have been accurately defined, it is convenient to calculate gas in place per acre-foot of bulk reservoir rock. Multiplication of this unit figure by the best available estimate of bulk reservoir volume then gives gas in place for the lease, tract, or reservoir under consideration. Later in the life of the reservoir, when the reservoir volume is defined and Performance data are available, volumetric calculations provide valuable checks on gas in place estimates obtained from material balance methods.
The equation for calculating gas in place is:
Where
G = gas in place, scf
A = area of reservoir, acres
h = average reservoir thickness, ft
f = porosity
Swi = water saturation, and
Bgi = gas formation volume factor, ft3/scf.
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This equation can be applied at both initial and abandonment conditions in order to calculate the recoverable gas.
Gas produced = Initial gas - Remaining gas
Or
Where
Bga is evaluated at abandonment pressure. Application of the volumetric method assumes that the pore volume occupied by gas is constant. If water influx is occurring, A, h, and Sw will change.
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Following are some of the topics in General Composition Of Petroleum in which we provide help:
- General Composition Of Petroleum
- Physical Properties Of Hydrocarbons
- Origin of Petroleum
- Fundamental properties Of Fluid Permeated Rocks
- Porosity
- Permeability
- The Klinkenberg Effect
- Saturation
- Wettability
- Capillary Pressure
- Relative Permeability
- Drainage Process
- Three phase Relative Permeability
- Rock Compressibility
- Fundamentals Of Reservoir Fluid Behavior
- Classification Of Reservoir And Reservoir Fluids
- Gas Reservoirs
- Fundamentals Of Reservoir Fluid Flow
- Types Of Fluids
- Properties Of natural Gases
- Behavior Of Ideal Gases
- Behavior of Real Gases
- Compressibility Of Natural Gases
- Properties Of Crude Oil Systems
- Gas Solubility
- Determination And Application of Reservoir Fluid Properties
- Composition Of The Reservoir Fluid
- Differential Liberation Test
- Separator Tests
- Fluid Analysis Data On Gas
- Constant-Volume Depletion
- Oil Recovery mechanisms And The material Balance Equation
- Primary Recovery Mechanisms
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- The Water Drive Mechanism
- Water Production
- The Gravity-Drainage-Drive Mechanism
- The Combination-Drive Mechanism
- The Material Balance Equation
- Change in Pore Volume Due to Initial Water and Rock Expansion
- Gas Reservoirs Help
- The Volumetric Method
- The material Balance Method
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