Molar Recombination for Windows

Molar Recombination for Windows

SiriusPetroleum Software

SiriusPetroleum 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.

Rcomb, Sirius Petroleum Software 5

Recombination Flow Rates

Rcomb, Sirius Petroleum Software 6

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

Rcomb, Sirius Petroleum Software 7

Gas AnalysisSomewhere, Alberta, Deepdown

HP-Gas Analysis

Mo

le fr

act

ion

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

Mo

le fr

act

ion

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

Rcomb, Sirius Petroleum Software 9

Liquid Analysis

Rcomb, Sirius Petroleum Software 10

Liquid AnalysisSomewhere, Alberta, Deepdown

Liquid Analysis

Mo

le fr

act

ion

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

Rcomb, Sirius Petroleum Software 12

System Options

Rcomb, Sirius Petroleum Software 13

Correlations

Rcomb, Sirius Petroleum Software 14

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

Rcomb, Sirius Petroleum Software 15

Reports

Rcomb, Sirius Petroleum Software 16

Graphs

Rcomb, Sirius Petroleum Software 17

Recombination AnalysisSomewhere, Alberta, Deepdown

Recombined Gas Analysis

Mo

le fr

act

ion

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 18

HP-Gas SensitivitySomewhere, Alberta, Deepdown

HP-Gas Sensitivity: Total Specific Gravity

Sp

eci

fic G

ravi

ty

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

10

0

15

0

20

0

25

0

30

0

35

0

40

0