The mud system is full of moving machinery and chemicals the rest of the rig forgets about.
Shale shakers, mud pumps, agitators, and pits circulate drilling fluid around the clock. The pinch points, the chemicals, and the slick surfaces injure workers who are often alone in the pit room.
Circulating the fluid.
The mud system mixes, pumps, and cleans drilling fluid as it circulates down the drill string and back, using mud pumps, shale shakers, agitators, centrifuges, and the mud pits.
Caught, exposed, slipped.
Hands and clothing caught in shakers, agitators, or pumps; chemical exposure and burns from mud additives; respiratory injury from fumes; and slips on a fluid-covered deck. Unguarded machinery is the recurring failure.
Which law — and who answers.
Drilling crews are seamen, so the claim runs under the Jones Act and the general maritime law.
The contractor that owns the rig and crews the floor answers for unsafe procedure and equipment under the Jones Act.
The operator’s drilling program and company representative on board can carry responsibility for the decisions that set the pace.
A defective top drive, iron roughneck, tong, or elevator — or a service contractor’s negligence — supports a separate claim, and an unfit one can render the rig unseaworthy.
The floor crew are crew of a vessel or MODU, so the Jones Act and unseaworthy doctrine apply — not a landside comp schedule.
Sound like your situation? Calling us is confidential, costs nothing, and starts nothing you don’t choose to start.
Text (713) 489-2297We reconstruct the system.
The firm rebuilds the machine guarding, the ventilation, and the chemical handling, drawing on the crush and chemical-exposure analyses.
What the other side will argue.
Expect the familiar moves — the claim that a guard was in place rather than missing or removed — alongside the standard fights over seaman status, comparative fault, and surveillance. The full Drilling defense playbook, with how each argument is met, is set out on our drilling operations page.
Guarding and ventilation are requirements.
Rotating mud equipment is supposed to be guarded and the pit room ventilated, so an injury usually points to guarding that was missing or removed or ventilation that failed. The firm proves the standard through a marine-safety expert, and the maintenance records, the safety data sheets, and the air-monitoring data carry the negligence and the unseaworthy case.
The mud system is the part of the rig everyone walks past — which is exactly why its guards go missing.
What to protect first.
For this work the evidence is the machine-guarding and maintenance records, the safety data sheets, and the air-monitoring data — held by the company and routinely overwritten, so demand preservation in writing before it is lost, and get prompt medical care. The full first-days checklist is on our drilling operations page.
Where this connects.
Drilling Operations · Crush Injuries · Chemical Exposure · Occupational Illness · Drilling Crew
What happens when you text us
Tell us what happened — in your own words, as much or as little as you want.
We review it free. You learn whether maritime law protects you and what your options actually are.
You decide. Nothing is filed, and no one contacts your employer, unless you choose to move forward.
Your conversation with us is confidential. There is no fee unless we win. Hablamos español.
Reach out even if…
- You think the accident was partly your fault — under the Jones Act, your own fault reduces a recovery but does not bar it.
- You already gave a statement or signed something — a release signed under pressure can be challenged.
- You still work for the company — talking to a lawyer is confidential, and retaliation for pursuing a claim can itself be actionable.
- You’re not sure your case is “big enough” — that’s exactly what a free review is for.
Catastrophic offshore injury? The investigation can’t wait.
Equipment gets repaired, records get revised, and witnesses rotate off the rig. Doyle Dennis Avery LLP moves quickly to preserve the evidence and identify every responsible party. A case review costs nothing, there is no obligation, and your employer will not know you contacted us.

Reviewed by
Michael Patrick DoylePartner · Doyle Dennis Avery LLP
Houston trial lawyer who tries complex maritime and catastrophic-injury cases against major offshore and energy operators.
Patrick M. DennisPartner · Doyle Dennis Avery LLP
Houston trial lawyer focused on maritime, offshore, and serious personal-injury litigation.
This page was reviewed for legal accuracy by the attorneys above. Last updated May 2026.
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This page is general information, not legal advice, and does not create an attorney-client relationship. The law that applies to an offshore injury — the Jones Act, the LHWCA and \u00a7 905(b), OCSLA, the general maritime law, product-liability law, or another body of law — and the parties responsible depend on the specific facts. Prior results do not guarantee or predict a similar outcome. Doyle Dennis Avery LLP · Houston, Texas. This is attorney advertising.

