$(1\mathrm{.}14)$ A drillstring is composed of $9,000$ ft of $5-$in$.19\mathrm{.}5-$ Hm $/$ ft drillpipe and $1,000$ ft of drill collars having a $3\mathrm{.}0-$in$.$ ID$.$ Compute these items: a$.$ Capacity of the drillpipe in barrels. Answer: $159\mathrm{.}8$ bbl$.$ b$.$ Capacity of the drill collars in barrels. Answer: $8\mathrm{.}7$ bbl$.$ c$.$ Number of pump cycles required to pump surface mud to the bit. The pump is a duplex doubleacting pump with $6-$in$.$ liners, $2\mathrm{.}5-$in$.$ rods, $16-$in$.$ strokes, and operates at a volumetric efficiency of $85\%.$ Answer: $1,164$ cycles. d$.$ Displacement of the drillpipe in bbl$/$ft$.$ A n$-$ swer: $0\mathrm{.}0065$ bbl $/$ ft $($neglects tool joints$).$ e$.$ Displacement of the drill collars in bbl $/$ ft$.$ The OD of the collars is $8\mathrm{.}0$ in$.$ Answer: $0\mathrm{.}0534$ bbl $/$ ft$.$ f$.$ Loss in fluid level in the well if $10$ stands $($thribbles$)$ of drillpipe are pulled without filling the hole. The ID of the casing in the hole is $10\mathrm{.}05$ in$.$ Answer: $64$ ft$.$ g$.$ Loss in fluid level in the well if one stand of drill collars is pulled without filling the hole. Answer: $108$ ft$.$ h$.$ Change in fluid level in the pit if the pit is $8$ ft wide and $20$ ft long, assuming that the hole is filled after pulling $10$ stands of drillpipe. Answer: $2\mathrm{.}5$ in$.$ i$.$ Change in fluid level in a $3-\backslash$times $3-$ft trip tank assuming that the hole is filled from the trip tank after pulling $10$ stands of drillpipe. Answer: $3\mathrm{.}6$ ft$.$