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VESSEL PROFILE · IMO 9729726

Deep Explorer

Published capabilities, ownership records and history. Evidence stays attached to every fact.

Open interactive profile 12 sources · 36 evidence records

Published specifications

12 particulars

Source dates describe the evidence, not current certification or operational availability. Operating roles may be historical. Reference-only screenshot figures and ratings are not used in this summary.

Published operating rolePublished source: TechnipFMC
Build yearCatalogue source: 2016
Length overallPublished source: 157 m
BeamPublished source: 27 m
Dynamic positioningPublished source: DP3
Saturation depthPublished source: 350 m
Saturation diversPublished source: 24
Bell configurationPublished source: Twin bell
Hyperbaric lifeboats (SPHL)Published source: 2 × 24-person SPHLs
Saturation system manufacturerPublished source: JFD
Main cranePublished source: 400 t and 58 t active heave-compensated cranes
DraftPublished source: 8.5 m

Not sourced in this summary: Bell occupancy, Deck area.

Specification research notes

VARD builder reference reviewed; current operator and SAT facts already exist. Only normalized hull dimensions added.

Supporting capability records

16 records

Published design and equipment particulars are evidence of the source configuration, not a current certificate or availability guarantee.

Design / yard

VARD 3 06; Vard Langsten yard number 818

As-built or introduction specification; current configuration and certification may differ.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Length overall

157 m

As-built or introduction specification; current configuration and certification may differ.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Length between perpendiculars

144.6 m

As-built or introduction specification; current configuration and certification may differ.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Moulded breadth

27 m

As-built or introduction specification; current configuration and certification may differ.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Maximum scantling draught

8.5 m

As-built or introduction specification; current configuration and certification may differ.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Deadweight

11,000 t

As-built or introduction specification; current configuration and certification may differ.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Accommodation

150 people

As-built or introduction specification; current configuration and certification may differ.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Saturation system

24 divers; twin bells; 350 m rating

As-built or introduction specification; current configuration and certification may differ.

Technip ↗Applies to 15 Nov 2016 · Published 15 Nov 2016 · Reviewed 17 Oct 2026

Dive-system supplier

JFD designed, built and commissioned the saturation system

As-built or introduction specification; current configuration and certification may differ.

Technip ↗Applies to 15 Nov 2016 · Published 15 Nov 2016 · Reviewed 17 Oct 2026

Dynamic positioning

DP3

As-built or introduction specification; current configuration and certification may differ.

Technip ↗Applies to 15 Nov 2016 · Published 15 Nov 2016 · Reviewed 17 Oct 2026

Offshore cranes

400 t and 58 t active heave-compensated cranes

As-built or introduction specification; current configuration and certification may differ.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Working moonpool

7.2 × 7.2 m

As-built or introduction specification; current configuration and certification may differ.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Dive moonpools

3.9 × 3.9 m

As-built or introduction specification; current configuration and certification may differ.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Aviation access

Helicopter landing platform

As-built or introduction specification; current configuration and certification may differ.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Vertical lay provision

Prepared for a vertical lay system; this does not confirm an installed VLS

As-built or introduction specification; current configuration and certification may differ.

VARD ↗Publication undated · Reviewed 17 Oct 2026

ROV support

Work-class ROVs described at introduction

As-built or introduction specification; current configuration and certification may differ.

Technip ↗Applies to 15 Nov 2016 · Published 15 Nov 2016 · Reviewed 17 Oct 2026

Research coverage & limitations (1)

VARD lists June 2016 delivery while TechnipFMC’s financing disclosure states December 2016; keep build year 2016 without presenting a reconciled delivery day.

Checked 17 Oct 2026

Ownership & identity

4 records

Registered owner, group owner, operator, manager and P&I entered owner are different roles. Each record retains the role and date stated by its source.

Vessel identity

IMO number: 9729726
MMSI: 311000411

TechnipFMC DSV under Bahamas flag; not the unrelated Finnish vessel also named Deep Explorer. Identity reviewed in public vessel listings. Public position snapshots are historical evidence, not a live feed.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

Vessel identifier review

Deep Explorer · IMO 9729726 · MMSI 311000411

Identity reviewed in public vessel listings. Public position snapshots are historical evidence, not a live feed.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

Published fleet operator

TechnipFMC

TechnipFMC ↗Publication undated · Reviewed 17 Oct 2026

Original build customer

VARD identifies Technip as the shipowner in its build reference.

Builder customer/owner designation at construction; not a current registry extract.

VARD ↗Applies to 2016 · Publication undated · Reviewed 17 Oct 2026

Vessel fleet listing

TechnipFMC lists Deep Explorer among its diving and multi-support vessels. Its description includes remotely operated vehicles and a 24-person diving chamber complex. The fleet page does not establish current registered ownership.

Undated fleet description; no current registry, certification or Rosebank assignment is inferred.

TechnipFMC ↗Publication undated · Reviewed 17 Oct 2026

Research coverage & limitations (2)

Current registered and beneficial ownership were not independently established from free primary records; TechnipFMC fleet operation is verified separately.

Checked 17 Oct 2026

Current registered and beneficial ownership of Deep Explorer were not established by the reviewed fleet page. Rosebank project licence holders are not vessel owners.

Fleet — Deep Explorer ↗

Checked 17 Oct 2026

Inspection & class records

9 records

These are historical records within each source’s coverage. Missing records are not a clean bill of health, and class descriptions do not prove current certification.

Reported safety incident: 17 June 2024

A regulator failed during hose hydrostatic testing; a fragment caused superficial facial abrasions and swelling. The worker was assessed and treated.

Regulator classification: actual near miss; potential lost/restricted-workday injury. This is not a fleet safety rating.

Canada–Newfoundland and Labrador Offshore Energy Regulator ↗Applies to 17 Jun 2024 · Publication undated · Reviewed 17 Oct 2026

Reported safety incident: 15 June 2024

A separated bumper pad struck a worker’s finger, causing a soft-tissue injury. The worker was assessed and treated by the medic.

Regulator classification: actual near miss; potential lost/restricted-workday injury. No enforcement outcome is stated.

Canada–Newfoundland and Labrador Offshore Energy Regulator ↗Applies to 15 Jun 2024 · Publication undated · Reviewed 17 Oct 2026

Canadian pre-approval inspection

C-NLOPB lists Deep Explorer and Seahunter under Cenovus in its 2023–24 pre-approval inspection activity.

The report identifies the inspection activity but does not publish vessel-level findings or a clean-bill-of-health outcome.

Canada–Newfoundland and Labrador Offshore Petroleum Board ↗Applies to 2024 · Publication undated · Reviewed 17 Oct 2026

Canadian certification oversight

C-NLOPB reviewed the vessel’s revised certification scope of work and lists DNV as certifying authority during 2023–24.

Historical regulatory oversight; not proof of a current Certificate of Fitness.

Canada–Newfoundland and Labrador Offshore Petroleum Board ↗Applies to 2024 · Publication undated · Reviewed 17 Oct 2026

Vessel Inspection

USCG zone/port: Mobile, Alabama. Case status: Closed / Approved Inspection.

USCG activity 6907866; vessel matched by IMO 9729726. USCG zone/port is an administrative field, not a verified incident location. The API gives an activity start date; this is not a current certificate or a complete worldwide inspection history. Inspection scope: Deficiency Check, In-Service Inspection. 1 deficiency record(s) returned for this activity.

Reported deficiency details (1)

07 - Fire Safety

The condition of the ship and its equipment shall be maintained to conform with the provisions of the present regulations to ensure that the ship in all respects will remain fit to proceed to sea without danger to the ship or persons on-board. Vessel had electrical fire in the gym space. Fire melted thermostat controller and wiring track.

Reported failure cause: Improper Installation

Required action: 17 - Rectify deficiencies prior to departure

Action condition: c - To the satisfaction of the Coast Guard

Resolved in source: Yes · 22 Feb 2020

Corrected to satification of class and USCG.

United States Coast Guard ↗Applies to 12 Feb 2020 · Publication undated · Reviewed 17 Oct 2026

Boarding

USCG zone/port: Dauphin Island, Alabama. Case status: Closed / Agency Action Complete.

USCG activity 6888130; vessel matched by IMO 9729726. USCG zone/port is an administrative field, not a verified incident location. The API gives an activity start date; this is not a current certificate or a complete worldwide inspection history.

United States Coast Guard ↗Applies to 12 Jan 2020 · Publication undated · Reviewed 17 Oct 2026

Incident Investigation

USCG zone/port: WASHINGTON, District of Columbia. Case status: Closed / Agency Action Complete.

USCG activity 6888489; vessel matched by IMO 9729726. USCG zone/port is an administrative field, not a verified incident location. The API gives an activity start date; this is not a current certificate or a complete worldwide inspection history.

United States Coast Guard ↗Applies to 13 Dec 2019 · Publication undated · Reviewed 17 Oct 2026

Vessel Inspection

USCG zone/port: Mobile, Alabama. Case status: Closed / Approved Inspection.

USCG activity 6844546; vessel matched by IMO 9729726. USCG zone/port is an administrative field, not a verified incident location. The API gives an activity start date; this is not a current certificate or a complete worldwide inspection history. Inspection scope: Ballast Water Examination, ISPS II Exam, PII Safety Exam. The deficiency endpoint returned no entries for this activity.

United States Coast Guard ↗Applies to 4 Nov 2019 · Publication undated · Reviewed 17 Oct 2026

Vessel Inspection

USCG zone/port: Mobile, Alabama. Case status: Closed / Approved Inspection.

USCG activity 6844534; vessel matched by IMO 9729726. USCG zone/port is an administrative field, not a verified incident location. The API gives an activity start date; this is not a current certificate or a complete worldwide inspection history. Inspection scope: Administrative Inspection. The deficiency endpoint returned no entries for this activity.

United States Coast Guard ↗Applies to 29 Oct 2019 · Publication undated · Reviewed 17 Oct 2026

Research coverage & limitations (2)

The Canadian records cover specific historical activities and incidents. A full PSC history and current class/fitness certification were not obtained.

Checked 17 Oct 2026

This is a snapshot of dated USCG activity records. Private eCMID/OVID reports, current class-survey status and worldwide inspection coverage have not been verified.

USCG PSIX public API ↗

Checked 17 Oct 2026

Project history

7 records

Vessel-specific events and contextual project records retain their dates and limitations. A regional contract award alone does not establish vessel employment.

Rosebank context: Dated regulatory milestone

Adura’s 17 August 2026 release announced the close of Rosebank’s public consultation, with regulatory consideration and a ministerial decision still ahead at that date. It did not announce renewed approval.

Status reported on 17 August 2026; not a statement that a decision remains pending on the review date.

Adura ↗Applies to 17 Aug 2026 · Published 17 Aug 2026 · Reviewed 17 Oct 2026

Rosebank context: Rosebank operator and licence holders

Adura’s July 2026 notice identifies Adura Operations Limited as Rosebank’s operator and names Adura Operations Limited and Ithaca SP E&P Limited as the licence holders.

Project ownership/operator context, not ownership of Deep Explorer. Publication month is identified by Adura’s project-page July 2026 notice section.

Adura Operations Limited ↗Published Jul 2026 · Reviewed 17 Oct 2026

Rosebank context: Published project schedule

The July 2026 notice reports subsea installation starting in summer 2024 and drilling in the first quarter of 2026. It targets first oil in 2027; this is a project forecast.

Reported project milestones and forecast only; no Deep Explorer activity is established. No event date is assigned to the uncompleted first-oil target.

Adura Operations Limited ↗Published Jul 2026 · Reviewed 17 Oct 2026

West White Rose diving authorization

The 2023–24 regulator report lists the Deep Explorer / Seahunter diving authorization for Cenovus’s West White Rose project as under review.

Status at that reporting period, not a statement that authorization remains pending today.

Canada–Newfoundland and Labrador Offshore Petroleum Board ↗Applies to 2024 · Publication undated · Reviewed 17 Oct 2026

Rosebank context: Company-level Rosebank contract

On 27 September 2023, TechnipFMC announced a Rosebank subsea engineering, procurement, construction and installation award from Equinor, valued within its $500 million–$1 billion contract band. The scope includes subsea systems, pipes, umbilicals and host connection; no installation vessel is named.

Company-level Rosebank context only. The announcement does not assign Deep Explorer or state its deployment dates.

TechnipFMC ↗Applies to 27 Sept 2023 · Published 27 Sept 2023 · Reviewed 17 Oct 2026

Canada life-extension work

In 2020 the vessel was commissioned for mooring upgrades, spider-buoy life extension, water-injection-riser replacement and gas-injection-jumper remediation.

Company project history; exact campaign dates are not supplied.

TechnipFMC ↗Applies to 2020 · Publication undated · Reviewed 17 Oct 2026

Naming ceremony

Named at Vard Langsten in Norway on 12 November 2016, with service planned for 2017.

Technip ↗Applies to 12 Nov 2016 · Published 15 Nov 2016 · Reviewed 17 Oct 2026

Research coverage & limitations (2)

The reviewed company contract and project notices do not establish a Deep Explorer assignment, current work scope, deployment dates or continuous two-week Lerwick–Rosebank movement history.

Checked 17 Oct 2026

A later Rosebank consent decision and actual first production are not established by the July notice or August consultation release; the stated 2027 date is a target.

Checked 17 Oct 2026