homework

All working must be shown

1. Estimate the MEA circulation rate and the sizes of absorber and stripper for an MEA sweetening plant for the following design  conditions:

  - Inlet gas flow rate, Q = 110 MMscfd

  - Inlet pressure = 550 psig

  - Inlet temperature = 105 deg F

  - Acid gas content:

     H2S = 3.8 mole %

     CO2 =2.9 mole %

  - Inlet gas SG = 0.75

  - CO2 in treated gas = 0.1 mole %

  - H2S in treated gas = 0.25 grain/100scf

2. the working needs to be shown

In this assignment you will need to perform an analysis on a hypothetical discovery based on the following information:

 

Field Size:                                            1.4 Tcf

Production/Reserve Ratio            7% of the original field size starting producing year 3

Gas price:                                            $3.5/Mcf

CapEx:                                                  $1/Mcf capitalized in 5 years, straight-line depreciation

Operating Cost:                                 $0.8/Mcf

Royalty:                                                10%

Government Take:                          40%

Cost recovery limit:                         60% of gross revenue

Discount rate:                                    10%

Income tax rate:                               33%

Allow cost recovery carry forward.

 

1. Evaluate the discovery – you need to calculate the total worth, worth to the company, government take, value in terms of entitlement interest and working interest.

2. Evaluate the producing gas reserve – total worth, wor