HPHT well definition

HPHT well means a well where the undisturbed bottom hole temperature at prospective reservoir depth or total depth is greater than 350 °F (175°C) and either the maximum anticipated pore pressure of any porous formation to be drilled through exceeds a hydrostatic gradient of 0.8 psi/ft (representing an EMW of 1.85 SG or 15.4 ppg) or pressure control equipment with a rated working pressure in excess of 10000 psi is required.
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HPHT well means a well where the undisturbed bottom hole temperature at prospective reservoir depth or total depth is greater than 350 °F (175°C) and either the maximum anticipated pore pressure of any porous formation to be drilled through exceeds a hydrostatic gradient of
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Related to HPHT well

  • Test Well means a well constructed for the purpose of obtaining information needed to design a well prior to its construction. Test wells are cased and can be converted to observation or monitoring wells and under certain circumstances to production wells

  • Horizontal well means a well with a horizontal displacement of the well bore drilled at

  • Development Well means a well drilled inside the established limits of an oil or gas reservoir, or in close proximity to the edge of the reservoir, to the depth of a stratigraphic horizon known to be productive.

  • Shallow well means a well located and constructed in such a manner that there is not a continuous layer of low permeability soil or rock (or equivalent retarding mechanism acceptable to the department) at least 5 feet thick, the top of which is located at least 25 feet below the normal ground surface and above the aquifer from which water is to be drawn.

  • Exploration Well means a well that is not a development well, a service well or a stratigraphic test well.