While drilling ahead with 60 foot draft, the...

Question 1 of 2707066636ee728f7522a1c517a1a

While drilling ahead with 60 foot draft, the DEEP DRILLER encounters lost circulation and loses 900 Bbls. of 16 pounds per gallon mud to the hole. How much ballast must be taken on to maintain 60 foot draft?

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Question 1 of 27070

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🔍 Key Concepts

• Convert barrels (bbls) of drilling mud to gallons, then to pounds, then to long tons • Understand what 16 pounds per gallon (ppg) means in terms of total mud weight lost • Recognize that to maintain the same draft, the weight lost must be replaced by an equal weight of ballast

💭 Think About

• How many gallons of mud are in 900 barrels, and what is the total weight of that volume at 16 ppg? • Once you know the total weight in pounds, how do you convert that to long tons (not short tons or metric tons)? • Which answer choice is closest to the calculated long tons of mud lost, given any rounding you might do in intermediate steps?

✅ Before You Answer

• Use 1 bbl = 42 gallons exactly in your calculation • Use 1 long ton = 2,240 pounds for the final conversion • Confirm you are replacing weight, not volume: the ballast long tons should match the total weight of mud lost in long tons