DepthEngineer @DepthEngineer

Petroleum & Marine Engineer ⚙️ | Breaking down offshore & vessel systems simply | Field-tested | Africa → Gulf 🌍 | Threads + Jobs weekly Sea Joined November 2010

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DepthEngineer @DepthEngineer

4 days ago

Both, actually. Classic Newtonian relativity Relative to the car — it's stationary. Relative to the road — it's doing 50 kph. Same principle applies offshore. A crane load can look perfectly still on deck while the vessel underneath it is rolling in 3 metre swells.

USA NEWS 🇺🇸 @usanewshq

4 days ago

Explain using physics: Is the drone stationary or moving at 50 kph?

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DepthEngineer @DepthEngineer

4 days ago

Which of these factors affects fuel droplet penetration during injection? A — Quality of atomization B — Injection temperature C — Scavenge air pressure D — All of the above Drop your answer. I'll explain why in the replies. 👇

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DepthEngineer @DepthEngineer

5 days ago

AHT Tug hiring Master and Chief Officer. Nigeria trading area. 11 weeks on, 11 weeks off. AHTS experience required. Master: $320/day Chief Officer: $250/day Send CV to: [email protected]

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DepthEngineer @DepthEngineer

5 days ago

Apply here: oceancrew.org/vacancies/dril…

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DepthEngineer @DepthEngineer

5 days ago

Open positions: OIM · Installation Manager · Toolpusher Driller · Assistant Driller Rig Electrician / ET · Rig Mechanic Maintenance Supervisor · Subsea Engineer BOP Technician · Derrickman · Roughneck Crane Operator · DPO Well Control Specialist Something here for every level.

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DepthEngineer @DepthEngineer

5 days ago

Offshore Drilling Project hiring in Nigeria. 15 roles across the full crew hierarchy — from OIM and Toolpushers down to Roughnecks and Crane Operators. If you've been waiting for a local offshore opportunity, this is worth looking at seriously. Full role list and apply link below

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DepthEngineer @DepthEngineer

5 days ago

Valid Passport Yellow Fever · Hepatitis A · Typhoid · Tetanus vaccinations 2 recent trip appraisals Send your CV + certs listed above to: [email protected]

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DepthEngineer @DepthEngineer

5 days ago

2 x 3rd Engineer roles just dropped. DP3 semisubmersible. Ghana → Nigeria. Rotations: 19th Jun & 1st July. Mandatory certs for this role: STCW BST · SA/DSD · PSCRB · AFF · MFA COC · MLC Medical · Seamans Book OPITO BOSIET/FOET/HUET · High Voltage STCW ERRM ·

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DepthEngineer @DepthEngineer

5 days ago

THE FUEL OIL SYSTEM; People think fuel just flows from a tank straight into a ship's engine. It doesn't. Before that fuel reaches combustion, it goes through a journey most engineers can't fully explain on their first year onboard. Let me walk you through it. 🧵

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DepthEngineer @DepthEngineer

5 days ago

That's the fuel oil system as best as I can explain it from what I've seen onboard. Follow @DepthEngineer if it was useful.

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DepthEngineer @DepthEngineer

5 days ago

The component I used to overlook most when fuel problems started: The quick closing valve. Safety isolation valve. If it's partially closed or sticking, fuel supply gets restricted and it looks exactly like an engine fault. Took me an embarrassing amount of time to learn.

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DepthEngineer @DepthEngineer

5 days ago

The sludge tank collects everything the separators pull out — water, sediment, contaminated residue. You cannot dump sludge at sea. MARPOL is clear and port state control will check your records when you dock. This is one area where "I didn't know" is never accepted .

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DepthEngineer @DepthEngineer

5 days ago

The overflow tank exists for one reason — If the daily service tank overfills, fuel goes here instead of onto the deck or into the bilge. A spill onboard is a fire risk, an environmental violation, and paperwork that follows you for years.

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DepthEngineer @DepthEngineer

5 days ago

The service pump pushes fuel toward the engine at the right pressure. The viscosity controller keeps fuel at the correct consistency before the injectors — stops uneven feeding.

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DepthEngineer @DepthEngineer

5 days ago

Then it goes through the fine filter. The separator removed bulk contamination. The fine filter catches what's left — particles small enough to damage injectors if they get through. Check what comes out regularly.

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DepthEngineer @DepthEngineer

5 days ago

Heavy fuel oil has to be heated before it flows properly. Too cold — won't pump. Too hot — vapour locks form. The textbook gives you the temperature range. What it can't give you is the judgment to know when your instruments are lying. you have to feel it

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DepthEngineer @DepthEngineer

5 days ago

Before the engine sees any fuel, it passes through the centrifugal separator. It spins fuel at high speed. Water and sludge fling outward and separate.I used to walk past this equipment without respecting it. if poorly maintained it will humble you faster than anything else

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DepthEngineer @DepthEngineer

5 days ago

Then it goes to the daily service tank. This is your working fuel — what the engine draws from continuously during operation. The reason you have a separate service tank is simple: you want a stable,fuel supply to the engine at all times,regardless of what's happening upstream.

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DepthEngineer @DepthEngineer

5 days ago

From storage, fuel moves to the settling tank. This is where gravity does the first round of cleaning. Water and heavy particles sink to the bottom over time. Most engineers I've met underestimate this tank. They treat it like a waiting room. It's your first line of defence.