How do you calculate Lagtime?
Time = Distance / Speed
So, the lag time difference between the two vehicles (10 hours – 5 hours) is 5 hours.
1. n. [Drilling] The sample obtained at the bottoms-up time or a volume of fluid to pump, as in “pump bottoms-up before drilling ahead.” 2. adj. [Drilling] Pertaining to the mud and cuttings that are calculated or measured to come from the bottom of the hole since the start of circulation.
How do you calculate stroke bits?
Strokes – Surface to Bit Strokes
- Now let’s calculate Surface to Bit Strokes.
- The general formula to calculate Surface to Bit Strokes is as follows:
- Surface to bit strokes = drill string volume bbls / pump output in bbl/stk.
- Step 1 is to calculate Drill String Volume –
How do you size a top-down market?
Top-down market sizing starts by looking at the current market as a whole, taking a macro view of all the potential customers and revenue, and then narrowing it down to a section you can realistically target. This gives you your serviceable obtainable market , (SAM).
What are the two methods to calculate the lag time?
There are two methods used in calculating theoretical lag time: Velocity Method – using annular velocities (ft/min) Volume Method – using annular volume (bbls)
What is time to peak in hydrology?
Time to peak: time interval from the start of rainfall to the peak discharge.
Bottoms Up (Circulating Bottoms Up): This is the wellbore annular volume from bottom of the hole to the surface. Circulating bottoms up is the displacement of the entire annular volume to surface by pumping into the wellbore.
What is closed end displacement?
Closed-End Pipe – Displacement, as related to drill pipe, drill collars and tubulars is the volume of fluid that the pipe will displace if placed into fluid with the lower end closed to allow no fluid inside.
What is stroke length?
The stroke length is how far the piston travels in the cylinder, which is determined by the cranks on the crankshaft. … This number is multiplied by the number of cylinders in the engine, to determine the total displacement.
What is stroke in drilling?
1. n. [Production Testing] In a sucker-rod pump, one complete round of the polished rod (surface stroke). On each stroke, a fixed volume of liquid is lifted. This volume is related to the cross-sectional area of the pump and the length of the stroke.
What is pipe displacement?
Pipe displacement, normally in bbl/ft or m3/m, is steel volume per length of steel pipe. When we either pull out of hole or trip in hole for any kind of pipes such as drill pipe, casing or tubing, you should know how much fluid to displace steel volume.