Well Enhancer

Published specifications

11 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: Helix Well Ops
Build yearPublished source: 2009
Length overallPublished source: 132 m
BeamPublished source: 22 m
Dynamic positioningPublished source: DP3
Saturation depthPublished source: 300 m
Saturation diversPublished source: 18
Saturation system manufacturerPublished source: DRASS
Main cranePublished source: 100 t main crane
Deck areaPublished source: 1,100 m²
DraftPublished source: 6.75 m

Not sourced in this summary: Bell configuration, Hyperbaric lifeboats (SPHL), Bell occupancy.

Specification research notes

Freshly checked Helix sheet and fleet page support the core dimensions, SAT depth and operating group. The 100 t crane is distinct from the 150 t well-intervention tower. No explicit bell count/type, occupancy, SPHL count or complete SAT-system manufacturer was verified.

Supporting capability records

5 records

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

Reported build year

2009

Published vessel particulars; publication date is not stated. These figures do not establish current class or equipment certification.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

Reported length

131.7 m

Published vessel particulars; publication date is not stated. These figures do not establish current class or equipment certification.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

Reported beam

21.95 m

Published vessel particulars; publication date is not stated. These figures do not establish current class or equipment certification.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

100-Series system confirmed in service report

DRASS’s January 2026 service report identifies its 100-Series saturation diving system aboard Well Enhancer.

OEM association at the time of the report; no current certificate or full as-maintained equipment register is supplied.

DRASS Group ↗Published 23 Jan 2026 · Reviewed 18 Oct 2026

Hyperbaric evacuation addition

DRASS records an additional hyperbaric lifeboat and escape trunk for Well Enhancer in 2010.

Historical project scope; later configuration unconfirmed.

DRASS Group ↗Applies to 2010 · Published 19 Jun 2019 · Reviewed 18 Oct 2026

Research coverage & limitations (1)

Detailed diving, lifting and ROV equipment specifications are not yet verified for this vessel. Any listed particulars retain the scope of their cited source.

Well Enhancer identity reference ↗

Checked 17 Oct 2026

Ownership & identity

2 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: 9421996
MMSI: 235062421

Helix target. Exact MyShipTracking observation retained as a historical fix. Dimensions here are tracker values, pending operator sheet review.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

AIS identity cross-check

Well Enhancer — IMO 9421996; MMSI 235062421.

Public AIS-provider identity listing. Review date is not an AIS observation date, ownership confirmation or current certification.

VesselFinder ↗Publication undated · Reviewed 17 Oct 2026

Reported flag

United Kingdom

Published vessel particulars; publication date is not stated. These figures do not establish current class or equipment certification.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

Research coverage & limitations (1)

The reviewed identity listing does not establish current registered ownership, beneficial ownership, charterer or operator. See any separately cited role-specific evidence.

Well Enhancer identity reference ↗

Checked 17 Oct 2026

Inspection & class records

0 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.

No verified records are available in this section of the collection.

Research coverage & limitations (1)

A complete inspection history has not been verified. No inference of a clean inspection record or current certification should be made from missing records.

Well Enhancer identity reference ↗

Checked 17 Oct 2026

Project history

1 record

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

Bell-trolley upgrade and PLC health check

DRASS reports installing and testing a bell-trolley pliers upgrade in Aberdeen, allowing automatic bell engagement within the existing hydraulic circuit. The same campaign included the vessel’s two-yearly PLC health check.

The January campaign was reported on 23 January 2026 as completed the previous week. Exact work dates are not stated; the report is not a future maintenance schedule.

DRASS Group ↗Applies to Jan 2026 · Published 23 Jan 2026 · Reviewed 18 Oct 2026

Research coverage & limitations (1)

A complete vessel-specific project history has not been verified. Any dated events below are limited to their cited evidence.

Well Enhancer identity reference ↗

Checked 17 Oct 2026

Published specifications

Supporting capability records

Reported build year

Reported length

Reported beam

100-Series system confirmed in service report

Hyperbaric evacuation addition

Ownership & identity

Vessel identity

AIS identity cross-check

Reported flag

Inspection & class records

Project history

Bell-trolley upgrade and PLC health check

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