True vertical depth definition

True vertical depth means that depth at the point of entry perpendicular to the surface as measured from the elevation of the kelly bushing on the drilling rig.

True vertical depth or "TVD" means the vertical distance

True vertical depth or "TVD" means the vertical distance from a depth in a planned or existing wellbore or well to a point at the surface. (Section 1-5 of the Act)

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.

More Definitions of True vertical depth

True vertical depth means the vertical distance from a point in the well (usually the current or final depth) to a point at the surface. If the well is deviated, the measurement may be different from the “measured depth.”

True vertical depth means the difference in elevation between the ground level at the surface location of the well and the deepest point in the well bore.

True vertical depth means the distance from the surface to a point in the well bore which is the deepest subsurface depth drilled. True vertical depth is measured by utilizing a straight line perpendicular to the surface.

True vertical depth means the vertical distance from a depth in a planned or existing wellbore or well to a point at the surface.

True vertical depth means that depth at the point of entry

True vertical depth means that depth measured from the surface perpendicular to the surface.

True vertical depth means the distance from the deepest point in the wellbore measured vertically to a point with the same elevation as that of the surface location. (Authorized by and imple- menting K.S.A. 2012 Supp. 55-152; effective Aug. 16, 2013.)