Calculating BHP in a Gas well
Calculating BHP in a Gas well
(OP)
Does anybody have an know how to calculate BHFP from surface conditions in the annulus of a gas well. I'm using the effective diameter based upon the crosssectional area of the annulus to determine the friction loss for the calculation. Is this valid or is there another adjustment that needs to be made for annular flow?





RE: Calculating BHP in a Gas well
I don't find any of the arithmetic to work very well below about 150 psig surface pressure, and most of them are really crap below 50 psia surface pressure.
David
RE: Calculating BHP in a Gas well
I am comfortable that in an annulus the hydrostatic head portion of the calculation is OK. The problem is the friction loss caused by the flow rate. I can also handle that using the normal calculations, but all I have is the adjustment using the ID. to the power of 2.667 in round tubing. I just don't know whether using an equivalent diameter based upon the crossectional area of the annulus will give the proper answer.
RE: Calculating BHP in a Gas well
David
RE: Calculating BHP in a Gas well