Production Engineering

Maximum treatment pressure (hydraulic fracturing)

4.51

Mechanical resistant torque (PCP)

4.52

Minimum polished rod load (sucker rod pump)

4.53

Peclet number for fluid loss (acidizing)

4.54

Perforation friction factor

4.55

Perforation friction pressure

4.56

Perforation hole size (perforation)

4.57

Perforation length in formation

4.58

Perforation penetration ratio (formation of interest/reference formation)

4.59

Perforation skin factor

4.60

Pore growth function (acidizing)

4.61

Pressure drop across perforations in gas wells

4.62

Pressure drop across perforations in oil wells

4.63

Pressure loss due to perforations during hydraulic fracturing

4.64

Pressure loss due to perforations during hydraulic fracturing – 2

4.65

Principal stress due to petro-static pressure (hydraulic fracturing)

4.66

Productivity index (for generating composite IPR curve)

4.67

Productivity ratio

4.68

Productivity ratio calculation of a hydraulically-fractured formation

4.69

Pseudo skin factor due to partial penetration (Brons and Marting method)

4.70

Pseudo-skin factor due to partial penetration (Yeh and Reynolds correlation)

4.71

Pseudo-skin factor due to partial penetration (Odeh correlation)

4.72

Pseudo-skin factor due to partial penetration (Papatzacos correlation)

4.73

Pseudo-skin factor due to perforations

4.74

Quantifying formation damage and improvement

4.75

Recommended underbalanced environment for perforation

4.76

Reynolds number for acid flow into the fracture (acidizing)

4.77

Reynolds number for fluid loss (acidizing)

4.78

Sand weight needed to refill a hydraulically fractured reservoir volume

4.79

Shape factor expressed as skin factor for vertical wells

4.80

Single-phase gas flow (subsonic)

4.81

Single-phase liquid flow through choke

4.82

Skin factor

4.83

Skin factor by Hawkins method

4.84

Skin factor due to partial penetration

4.85

Skin factor due to reduced crushed-zone permeability

4.86

Skin factor for a deviated well

4.87

Slope of Semilog plot for bottom-hole flowing pressure vs time for drawdown test

4.88

Sucker rod – Peak polished rod load

4.89

Suspension property of static fluids (completion and workover fluids)

4.90

Tangential annular flow of a power law fluid

4.91

Temperature at choke outlet

4.92

The z component of the force of the fluid on the wetted surface of the pipe

4.93

Total skin in partially depleted wells for a buildup test

4.94

Velocity distribution in the annular slit of a falling-cylinder viscometer

4.95

Velocity distribution in the narrow annular region in annular flow with inner cylinder moving axially

4.96

Velocity distribution of flow through an annulus

4.97

Velocity of fluid in annulus

4.98

Velocity of fluid in pipe

4.99

Viscous force acting on the rod over the narrow annular region

4.100