Gas Supply Managerfor Windows

Gas Supply Managerfor Windows

SiriusPetroleum Software

SiriusPetroleum Software

Gas Supply ManagerDescription

GSM generates a sales gas forecast by allocating the demand of multiple contracts among several pools according to their deliverability. The gas

supply from each pool is determined by deliverability decline.

Gas Supply ManagerDescription cont.

The principal use of the program is to generate a multi-pool gas forecast based on each pool’s deliverability and the total gas contract demand including demand from direct sales.

The deliverability of each pool is determined using standard deliverability decline analysis.

Pool pressure is calculated based on the cumulative production and the Initial Gas in Place.

Gas Supply ManagerApplication

Knowledge of corporate supply and demand is critical in managing multiple gas properties. The applications are:

–Identify gas contract short falls.–Identify direct sale potential.–Investigate the impact of infill drilling.–Generate corporate gas supply and demand forecast.–Determine economic reserves.

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GSMAgenda

• Pool data

• Contract data

• Direct sales data

• Buyer data

• Gas analysis data

• Special Features, System Options, Methods and Correlations

• Output Reports and Graphs

• Demo

• Questions

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Pool Data

• Basic Data: Pool name, Gas Analysis name, Contract name, deliverability method.

• Reservoir Data: Current pressure, formation temperature, and abandonment pressure, rock and water compressibility.

• Abandonment Data: Reservoir pressure, Recovery factor, Deliverability rate.

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Pool Data

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Contract Data

• Basic Data: Contract name, gas contract buyer, contract rate, maxday and obligation factor.

• Table of load factor and maxday relief.

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Contract Data

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Buyer Data

• Basic Data: Contract name, gas contract buyer, contract rate, maxday and obligation factor.

• Table of load factor and maxday relief.

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Buyer Data

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Gas Analysis Data

• Full Gas Analysis: 12 Component gas analysis including N2, CO2 and H2S, C7

+ properties (Molecular Weight, Specific Gravity)

• Simple Gas Analysis: 3 non-HC including N2, CO2, and H2S, and a total gas specific gravity.

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Gas Analysis

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GSMSpecial Features

• Capability to handle up to 50 pools, 10 gas contracts and 10 gas buyers.

• Build in gas material balance calculation to determine current reservoir pressure.

• Includes full gas PVT calculations to determine gas properties.

• Include several different gas correlations.

• Individual pool abandonment criteria.

• Includes gas contract parameters to accurately model, demand, maxday, maxday relief, obligation factor and minday demand.

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System Options

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Correlations

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Output, Reports and Graphs

• Summary of results

• Numerous reports– pool, contract, buyer and total.

• Numerous graphs– pool, contract, buyer and total.

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Summary of Results

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Summary of Results

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Summary of Results

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Summary of Results

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Reports

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Graphs

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Gas Analysis GraphERCB Example A-1

Simple Gas Analysis

Mo

le f

rac

tio

n

Components

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N2 C02 H2S Hydrocarbons

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Pool PressurePool #1, My Contract

Pool P/z Pressure Performance

Depletion P/z Pressure (kPaa) Depletion Pressure (kPaa)

P/z

Pre

ss

ure

(k

Pa

a)

Pre

ss

ure

(k

Pa

a)

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Pool RecoveryPool #1, My Contract

Pool Pressure and Cumulative Recovery Forecast

Pool Pressure (kPaa) Recovery (fraction)

Po

ol P

res

su

re (

kP

aa

)

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lati

ve

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ry (

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cti

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)

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Pool ForecastPool #1, My Contract

Pool Production Forecast

Deliverability(se³m³/d)

Contract(se³m³/d)

Direct (se³m³/d) Total (se³m³/d)

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w G

as

Flo

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ate

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e³m

³/d

)

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Contract ForecastMy Contract

Contract Production Forecast

Deliverability(se³m³/d)

Max Day Sales(se³m³/d)

Contract Sales(se³m³/d)

Min day Sales(se³m³/d)

Sa

les

Ga

s F

low

Ra

te (

se

³m³/

d)

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