Examples of True vertical depth in a sentence
True vertical depth at the top of productive pay minus Kelly bushing elevation.
B = True vertical depth at base of productive pay minus Kelly bushing elevation.
The unit will provide continuous 24-hour surveillance of drilling operations including the minimum:• Total gas detection• Chromatographic gas analysis• Continuous CO2 detection• Continuous H2S detection• Measured depth• True vertical depth as calculated from surveys• Rate of penetration• Weight on bit• RPM• Pump stroke rate• Mud pit levelsBefore surface casing is set, a single H2S sensor will be mounted in the possum belly and used to continuously monitor ditch gases for H2S.
This is illustrated in figure 4.4. f(q) qOther conditions• Flow path- Restrictions- Release point• Oil properties- Density- Viscosity- Gas content• Water depthWell• Reservoir exposure• Design• Skin-factor• Inner diameter• Measured depth along well path (MD)• True vertical depth (TVD)Geology• Pore pressure• Fracture pressure• Temperature• Porosity• Permeability• Reservoir size• Flow pattern• Collapse gradient• Sand production• Water or gas coning Figure 4.4 Factors affecting the blowout rate.
True vertical depth was determined from driller’s reports, wellbore diagrams, deviation surveys, and state websites.