Well Test Analysis

Shut-in time for pressure build-up test (Dietz method)

3.51

Skin during infinite-acting pseudoradial flow for vertical wells

3.52

Skin estimation type-1 (pressure buildup test)

3.53

Slope of Horner plot in pressure buildup test

3.54

Slope of pseudo-steady state flow in pressure buildup test

3.55

Time to pseudo-steady state (single well-circular reservoir)

3.56

Time to reach the semi-steady state for a gas well in a circular or square drainage area (2)

3.57

True wellbore storage coefficient (pressure build-up test)

3.58

Well flow efficiency (geothermal well)

3.59

Well shut-in pressure during buildup (Horner plot)

3.60