MD and TVP

 Because wells are not always drilled vertically, there may be two "depths" for every given point in a wellbore: the measured depth (MD) measured along the path of the borehole, and the true vertical depth (TVD), the vertical distance between the datum and the point of interest. In perfectly vertical wells, the TVD equals the MD; otherwise, the TVD is less than the MD measured from the same datum.

Simply put, MD is the total distance travelled by the drill bit from the surface of the well to a specific point along the borehole. It is essentially the length of the wellbore, measured along its path, regardless of any deviations or curves the borehole might take.

The Distinction between MD and True Vertical Depth (TVD)

MD is distinct from True Vertical Depth (TVD), which is the vertical distance between the surface and the specific point in the wellbore. TVD represents the actual depth below the surface, taking into account any deviations or curves in the wellbore.

MDHIP = MWHIP +TVP * DENSITY

Isolation Kit

 Isolation Kit - to align cs and ss specs

 1) Std Ideal Liq Vol Flow (standard input on Aspen Hysys)

Volumetric flow is calculated based on ideal mixing of pure component ideal densities at 60 °F (15 °C).

2) Liq Vol Flow @Std Cond
Volumetric flow is calculated rigorously at the standard reference state for volumetric flow rates, and reflects non-ideal mixing effects.

3) Actual Volume Flow (not a direct input in Aspen Hysys)
Volumetric flow is calculated rigorously at the flowing conditions of the stream (i.e., at stream T and P).

Direct and reverse acting

 

GWR st std conditions

 

std conditions

 Std conditions are 101.325 kPaa and 60F

15.6 deg c and 101.325 Kpaaa

 

Brackish and fresh water