PTA

PdLSSIHR

The expression of dimensionless line source solution pressure of infinite homogeneous reservoir.

PdwVWIHR

Dimensionless wellbore pressure drop for vertical well in infinite homogenous reservoir.

PdwVWIHRLCPB

Dimensionless wellbore pressure drop for vertical well in infinite homogenous reservoir with linear constant pressure boundary.

PdwVWIHRLSFB

Dimensionless wellbore pressure drop for vertical well in infinite homogenous reservoir with linear sealing fault boundary.

PdwVWIHRPCPB

Dimensionless wellbore pressure drop for vertical well in infinite homogenous reservoir with perpendicular constant pressures boundary.

PdwVWIHRPMB

Dimensionless wellbore pressure drop for vertical well in infinite homogenous reservoir with perpendicular mixed boundaries (boundary 1 – fault, boundary 2 – constant pressure).

PdwVWIHRPSFB

Dimensionless wellbore pressure drop for vertical well in infinite homogenous reservoir with perpendicular sealing faults boundary.

ptaCd

Dimensionless wellbore storage coefficient

ptaPd

Dimensionless pressure as defined for constant-rate production

ptaRwd

ptaRwd – Dimensionless radius

PwVWIHR

Wellbore pressure drop for vertical well in infinite homogenous reservoir, [psi]

PwVWIHRLCPB

Wellbore pressure drop for vertical well in infinite homogenous reservoir with linear constant pressure boundary, [psi]

PwVWIHRLSFB

Wellbore pressure drop for vertical well in infinite homogenous reservoir with linear sealing fault boundary, [psi]

PwVWIHRPCPB

Wellbore pressure drop for vertical well in infinite homogenous reservoir with perpendicular constant pressures boundary, [psi]

PwVWIHRPMB

Wellbore pressure drop for vertical well in infinite homogenous reservoir with perpendicular mixed boundaries (boundary 1 – fault, boundary 2 – constant pressure), [psi]

PwVWIHRPSFB

Wellbore pressure drop for vertical well in infinite homogenous reservoir with perpendicular sealing faults boundary, [psi]