A water well has a static formation pressure of 1200 psi. A flow test produced 50 bpd at a Bottomhole flowing pressure of 1000 psi. Calculate the following and plot the results to create an IPR curve for this well.

a. The productivity index. b. The maximum flow rate. c. Flowrate at a bottom hole pressure of 300 bpd. d. Flowrate at a drawdown of 60%.e. Plot all results on a Pwf vs Q graph.

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk

Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.