An $8\frac{1}{2}$ verfical well was being dilled at $9500$ft$,$ when a kick

was encountered well was shut in and SICP and SIDPP are recorded

with pof grain as ffs$!$

SICP$=600$ psi $,$ SIDPP $=300$ psi pIt gain$=20$bbl

prerecorded data for the wells is drill pipe ID$=4\mathrm{.}27$ in

$OD=5$ inch, dill pipe anrular capacety $V_p=0\mathrm{.}045901$

Pipe capacity $=0\mathrm{.}01776bb\frac{l}{f}t,$ drill collar ID $=3$inch, OD$=8$inch. Collar length$=600$ft$,$ collar capacity$=0\mathrm{.}00874$bbl$/$ft$,$ collar annular capacity$=0\mathrm{.}008014$bbl$/$ft$.$ mud weight$=11$ppg$,$ original pump pressure$=2500$psi

a$.$ what are the possible causes of kick

b$.$ type of kick

c$.$ initial and final circulation pressure

d$.$ kill mud weight and reasons for choosing to kill