Jacking Elevated
- Air gap
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- Leg below hull
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- Leg above jack case
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- Max air gap here
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Cantilever Drilling
Max drilling position 70'-0" (21.34 m) aft of the transom, per the top deck GA.
Iron roughneck At well centre
Crane lift Basket on OCEAN STAR
Port midship crane picks a cargo basket off OCEAN STAR, swings it over the quarters and lands it on the main deck pipe rack area.
36" hole · 30" conductor Ready
Jack to 122 ft rotary-to-water in 62 ft of water, pick up the 6-1/2" collar stand and drill pipe stands, and drill a 26" pilot with the 36" hole opener from seabed (184 ft) to 350 ft RKB.
Bit — · seabed 184 ft · TD 350 ft RKB
Crane the conductor to the cantilever Bundle on OCEAN STAR
Port midship crane picks a bundle of 4 × 30" conductor joints off OCEAN STAR, swings it over the corner of the quarters and lays the joints out on dunnage on the off-driller's side of the cantilever, ready to pick up.
Run 30" conductor
Run the string: shoe joint first, 9 × 40 ft joints to 15 ft off bottom of the 36" hole. Ready
Cement 30" conductor
Cementing: conductor in the slips, run the inner string and stab the stinger into the shoe. Ready
26" hole · 20" casing
Drill 26" to 1,350 ft, run and cement the 20" casing, install the wellhead, then test the BOP with the test plug and set the wear bushing.
17½" hole · 13⅜" casing
Drill out, FIT and drill 17½" to 4,115 ft; run and cement the 13⅜" casing; cut and nipple down, set the unihead, nipple up the new BOP and test it.
12¼" hole · 9⅝" casing
Mix, circulate and check the low-toxicity oil-based mud, then drill out, FIT and drill 12¼" with the rotary steerable to TD 9,000 ft; pull the wear bushing, run the 9⅝" casing on the hanger and cement it.
8½" hole · 7" liner
Driller's chair ↗ · take the controls yourself: drill the stand down and make a connection from the cyber chair.
Mix and check the 9.5 ppg reservoir mud, then drill out the 9⅝" shoe, FIT to 12.0 ppg and drill the reservoir with the rotary steerable to well TD 10,050 ft MD (9,207 ft TVD), with formation pressure points.
Well control · kick
Drill into the reservoir, take an 8 bbl gas kick, hard shut-in on the pipe rams, then the Driller's method shown step by step: kill sheet, SIDPP / SICP, choke control, weighting up and both circulations.
7" production liner
Run the 7" liner on drill pipe with the shoe track, centralisers and liner tally; set the hanger with the ball, release the running tool, cement it, set the yellow liner-top packer, test to 3,500 psi and pull out with the drill pipe.