Molar Recombination for Windows

Molar Recombination for Windows

SiriusPetroleum SoftwareSirius

Petroleum Software

Rcomb

Rcomb uses the mole fraction analysis of hydrocarbon gas and liquid streams sampled at

the outlets of a multi-stage separator to determine the composition of the inlet fluid. The

constituent streams are added together on a molar equivalent basis at standard conditions in proportion to the rates measured at the separator.

Rcomb, Sirius Petroleum Software 3

RcombAgenda

• Multi-stages Separation and Recombination Flow rates• Gas analysis data• Liquid analysis data• Special Features, System Options, Methods and

Correlations• Output Reports and Graphs• Demo• Questions

Rcomb, Sirius Petroleum Software 4

Multi Stage Separation

• Recombine three gas analysis and one liquid analysis.

• Maximum of three stage separation.• Gas Flow Rates: HP, MP, LP.• Liquid Flow Rate: LP.

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Recombination Flow Rates

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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: n/a

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Gas AnalysisSomewhere, Alberta, Deepdown

HP-Gas Analysis

Mol

e fra

ctio

n

Components

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0.55

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0.95

1.00

N2 C02 H2S C1 C2 C3 iC4 nC4 iC5 nC5 C6 C7+

Somewhere, Alberta, DeepdownLP-Gas Analysis

Mol

e fra

ctio

n

Components

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0.55

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0.95

1.00

N2 C02 H2S C1 C2 C3 iC4 nC4 iC5 nC5 C6 C7+

Rcomb, Sirius Petroleum Software 8

Liquid Analysis

• Full Liquid Analysis: 12 Component liquid analysis including N2, CO2 and H2S, C7

+ properties (Molecular Weight, Specific Gravity)

• Simple Gas Analysis: n/a

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Liquid Analysis

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Liquid AnalysisSomewhere, Alberta, Deepdown

Liquid Analysis

Mol

e fra

ctio

n

Components

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0.55

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0.95

1.00

N2 C02 H2S C1 C2 C3 iC4 nC4 iC5 nC5 C6 C7+

Rcomb, Sirius Petroleum Software 11

RcombSpecial Features

• Sensitivity Analysis– Flow rate sensitivity Analysis conducted on all streams from 0.0 to

2.0 times the specified flow rates– Sensitivity conducted on HP, MP, LP-gas and liquid streams.

• Major correlations included– C7+ properties correlation– Gross Heating Value correlation– Sour gas correction correlation

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System Options

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Correlations

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Output, Reports and Graphs• Numerous reports

– review input data reports– recombination reports– rate sensitivity reports

• Numerous graphs– gas and liquid analysis graphs– recombination graphs– rate sensitivity graphs

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Reports

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Graphs

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Recombination AnalysisSomewhere, Alberta, Deepdown

Recombined Gas Analysis

Mol

e fra

ctio

n

Components

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0.55

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0.95

1.00

N2 C02 H2S C1 C2 C3 iC4 nC4 iC5 nC5 C6 C7+

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HP-Gas SensitivitySomewhere, Alberta, Deepdown

HP-Gas Sensitivity: Total Specific Gravity

Spe

cific

Gra

vity

HP-Gas flow rate (se³m³/d)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

0 50 100

150

200

250

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400