From Gas Well Testing Handbook
| Symbol | Description | Field units | Metric (SI)units |
|---|---|---|---|
| A | Drainage area | ft 2 | m |
| A | Gross cross-sectional area |
|
|
| a | Coefficient in the stabilized deliverability equation | | |
| a t | Coefficient in the transient form of deliverability equation | | |
| a 1 | Coefficient in the stabilized deliverability equation | | |
| a 11 | Coefficient in the stabilized deliverability equation | | |
| A | Gross cross-sectional area |
|
|
| A | Drainage area | ft 2 | m 2 |
| AOF | Absolute open flow potential of a well or the deliverability against a zero sandface pressure (Ch. 3) | mmscfd | kmol/d |
| b | Coefficient in the stabilized deliverability equation | | |
| b 1 | Coefficient in the stabilized deliverability equation | | |
| b 11 | Coefficient in the stabilized deliverability equation | | |
| c | Compressibility of gas at average conditions | psia 1 | kPa 1 |
| c f | Formation compressibility | psia 1 | kPa 1 |
| c g | Gas compressibility | psia 1 | kPa 1 |
| c 0 | Oil compressibility | psia 1 | kPa 1 |
| c t | Effective total compressibility | psia 1 | kPa 1 |
| c w | Water compressibility | psia 1 | kpa 1 |
| c wf | Gas compressibility corresponding to pwf | psia 1 | kPa 1 |
| Cws | Compressibility of wellbore fluids evaluated at the mean wellbore temperature and pressure | psia 1 | kPa 1 |
| C | Coefficient in the deliverability equation |
|
|
| C A | Shape factor |
Products & Services
Topics of Interest
Symbol Description A Drainage area A ? Drainage area constant AOF Absolute open flow potential of a well or the deliverability zero sandface pressure b...
7.1 Introduction Deliverability testing is a commonly used technique for predicting shortterm and long-term behavior of gas wells. Typically, a well is flowed at different rates, and the pressure...
4.1 Introduction This chapter discusses basic flow equations expressed in terms of the pseudopressure ?( p) and of approximations to the pseudopressure approach that are valid at high and low...
3.1 Introduction This chapter includes steady- and pseudo-steady-state equations for gas flow through a reservoir. For each subsection, flow equations for vertical wells are described first,...
15.1 Introduction This chapter presents various field case studies in low, high permeability, and fractured carbonate gas wells including summary, conclusions, and recommendations. It also includes...