During inspections the complete units would be fully stripped down, dimensional checks would be completed, all components would be subject to shot blasting, NDE examinations, re paired, re shot blasted & painted to API painting specifications

• Crown Blocks
• Travelling Blocks
• Fast Line Sheave Assemblies
• Dead Line Anchors

Development of high pressure hose registers, hose details are recorded along with hose length, hose end type & hose end orientation

• Generation of comprehensive asset hose register
• Fitness for service assessment
• Comprehensive field reports including photographic library of findings

Conducting a noise level analyses survey of all manned areas on the drilling unit to determine the present sound pressure / noise level on board in all areas & provide assistance / improve noise levels & protection measures if / where possible to minimize noise levels & reduce exposure to high level noise environments providing a safer work place for all crew on board.

The inspection report includes information on the areas monitored, what sound pressure levels the on-board disciplines were being exposed to, average noise levels in each area during the ongoing operations & for the observations what were reviewed during the time period allocated for the survey / inspection which was conducted on board. For the observations noted during the survey / inspection an observations & recommendations list will be issued providing inspection findings, this list contains recommendations / requirement along with deficiency noted & photos where applicable

The following defines the different levels of inspections to be performed:

Includes reviews of the maintenance records and a basic visual inspection of the rig equipment and structure, after a review of the maintenance history, the continuance of the level 1 inspection will consist of a `walk around’ to complete a visual inspection of the asset to determine if obvious issues exist.

This type of inspection will provide the client with a brief overview of the equipment & general area conditions

Includes inspection 1 plus provides more in depth inspections, This inspection requires a detailed inspection of the asset including operational and performance testing of the equipment on board and a review of dimensional checking during maintenance routines.

Discussions with key maintenance personnel are required to quantify operational effectiveness and historical performance. This type of inspection typically applies to safety critical, operational critical or high critical assets equipment.

Includes inspections 1 & 2 plus provides more in depth inspections. This inspection will require removing equipment from service and performing an intrusive detailed inspection. This type of inspection is typically used for assets that are approaching a periodic service, due an overhaul or may have a high maintenance or failure issue, intrusive inspections are normally completed on the primary drilling equipment, cranes or jacking systems

The survey duration is dependent on the unit type & level of inspection required by the client, further inspections can also be included upon request by the client (eg inspection of critical equipment spare parts)

Duration is estimated by the previous 6 years where 100+ inspections have been completed, travel days would be extra on top of duration of survey
Land rig 5 – 7 Days
Barge 7 – 10 Days
Jack up 10 – 14 Days
Semi-submersible 14 – 18 Days (2 personnel)
Drill ship18 – 21 Days (2 personnel)
The rig condition survey would cover but not be limited to the following equipment:

Derrick, drawworks, crown block, travelling block, elmagco brake, dead line anchor, top drive, rotary table, iron roughneck, pipe handling equipment, hydraulic cat head, drill string, fishing tools, well test equipment, stabbing board, tuggers & man riding winches

Mud pumps, circulating pumps, mud cleaning equipment, shakers, agitations, bulk tanks & hoppers, cement unit, mud manifolds & mud hoses

Ram type BOP, Annular type BOP, gate valves, clamps, hydraulic control unit, remote BOP control panels, BOP system hoses, diverter system, mud gas separator

Ballast system, bilge system, jacking system, anchor winches, navigation system, watertight integrity, communications equipment, general marine operations, towing equipment

Main engines, emergency engines, compressors, air dryers, HVAC systems, salt water service systems, cranes, water makers, low pressure piping systems, fuel purifiers, skidding systems

Main generators, transformers, SCR / VFD systems, switch boards, distribution panels, DC motors, AC motors, motor control centers, lighting systems, emergency lighting, UPS systems, alarms systems, PA systems, electric outlets / cables & supports, welding equipment, instrumentation explosion proof equipment

Flammable gas detection system, toxic gas detection system, fire suppression system, fire extinguishers, breathing apparatus, foam systems, helicopter operations, escape routes, sick bay, emergency procedures, survival & lifesaving, life boats & davits, life rafts & davits, lifting & handling, deck walkways & ladders, accommodation, pollution control & containment, housekeeping, permit to work systems, drilling systems, COSHH system,

Maintenance organization, preventative maintenance system, equipment history files & filing

Any specific areas of inspection should be determined during the survey scope kick off meetings before mobilization on board the unit.

During inspections API, OEM maintenance, IMO – SOLAS, ASME, LOLER 1998 & IADC – HSE recommendations are used as guidelines and minimum industry requirements

The work scope does not include neither the jacking systems condition evaluation nor a comprehensive hull condition survey. Should these be a requirement, these will be out with and separate from the above proposed team and estimated survey durations