(I) Base-mounted winches and other lifting appliances

(a) Load test: After installation, the system is to be tested with a load equal to 125% of

the rated capacity in the presence of the Surveyor. Satisfactory operation of power

Guidance Relating to the Rules for the Classification of Mobile Offshore Drilling Units 2015 25

drives and brakes is to be demonstrated. After being tested, the system with all its components is to be visually examined for permanent deformation and failure.

(b) Performance test: Testing in the presence of the Surveyor is to demonstrate that rated

line pull can be achieved at rated speed with the outermost layer of wire on the drum.

(c) Brake holding test: It is to be demonstrated that the brakes have the ability to stop and hold 100% of the design load. Confirmatory testing to demonstrate the braking effect of variable frequency drive AC motors is to be carried out upon installation onboard.

(J) Burner boom

(a) The adequacy of the boom's slewing and topping gear is to be demonstrated by testing

after the boom‘s installation on the drilling unit. The details of the test procedure are to be agreed upon with a attending Surveyor.

(b) Functional testing of the completed burner assembly is to be carried out by pressure

testing from the flexible hose connection flange to the burner head.

(K) Equipment associated with all hoisting, lifting, rotating, and pipe handling systems are to be tested in accordance with Par 2.

(L) All drilling systems and equipment are to be checked for proper operation.

(M) Control system and shutdowns are to be tested to the satisfaction of the Surveyor.

(N) All wiring and electrical connections are to be checked for continuity and proper workman- ship in accordance with the Ch 6 of the Rules.

(2) In addition to tests required in (1), All drilling systems are to be subject to pressure tests, load

tests or functional tests according to their characteristics.

(A) Testing of well control systems

(a) The following equipments are to be subjected to a functional test.

(i) Blowout preventer systems: accumulator, acoustic control system, autoshear system, BOP stack, BOP, clamp, connector for wellhead, control system/console/panel, hy-

draulic control hoses, control pods, deadman system, hydraulic hose reels, hydraulic

hoses and piping, hydraulic power unit, MUX cable reels

(ii) Lower marine riser package: annular preventer, emergency disconnect system, flex/ball joint, jumper hoses, riser adapter, riser connectors for BOP stack

(iii) Diverter systems: control system/console/panel, diverter house with annular sealing

device, hydraulic power unit, valves

(iv) Choke and kill systems: control system/console/panel, connectors, valves, manifolds,

flexible hose, emergency circulating pump, kill unit, hydraulic

(v) Auxiliary equipments: drill pipe safety valves, drill string valve in drill string

(b) The following equipments are to be subjected to a hydraulic

pressure.

power unit

float valves, on-return test at rated working

(i) Blowout preventer systems: accumulators, acoustic control system, BOP stack, BOP, connector for wellhead, control system/console/panel(in case of hydraulic or pneu-

matic controls), hydraulic control hoses, control pods, drilling spools, hydraulic hose reels, hydraulic hoses and piping, hydraulic power unit, spacer spools, test stump

(ii)

Lower marine riser package: annular preventer, emergency disconnect system, flex/ball joint, jumper hoses, riser adapter, riser connectors for BOP stack

(iii)Diverter systems: control system/console/panel(in case of hydraulic or pneumatic

controls), diverter house with annular sealing device, hydraulic power unit, piping, valves

(iv)Choke and kill systems: control system/console/panel(hydraulic or pneumatic con- trols),

connectors, valves, manifolds, flexible hose, piping systems, emergency circu- lating pump, hydraulic power unit

(v) Auxiliary equipments: drill pipe safety valves, drill string float valves, non-return valve in drill string

(B) Testing of marine drilling riser system and associated components

(a) The following equipments are to be subjected to a functional test.

(i) Marine drilling riser system: assembled marine drilling riser systems, all and flexible joints, hydraulic connectors, telescopic joint

(ii) Riser running equipment: gimbal, riser running tool, riser spider

(iii) Riser tensioning systems: accumulators, compressor, control system/console/panel, dryers, hydraulic cylinders, hydraulic power unit, nitrogen generator, piping system,

riser tensioners, guideline and podline tensioners, riser tensioning unit, telescopic

arms

26 Guidance Relating to the Rules for the Classification of Mobile Offshore Drilling Units 2015

(b) The following equipments are to be subjected to a hydraulic test at rated working pressure.

(i) Marine drilling riser system: ball and flexible joints, tensioner ring

(ii) Riser running equipment: riser spider (used as elevators/lifting)

(iii)Riser tensioning systems: accumulators, air/nitrogen buffer tanks, control system/con- sole/panel(in case of hydraulic or pneumatic controls), hydraulic cylinders, hydraulic power unit, nitrogen generator, piping system, pressure vessels, riser tensioners, guideline and podline tensioners, riser tensioning unit, telescopic arms

(c) The following equipments are to be subjected to a pneumatic test in accordance with design codes and standards

(i) Riser tensioning systems: accumulators

(C) Testing of drill string compensators

(a) The following equipments are to be subjected to a functional test.

(i) Drill string compensators: accumulators, compressors, dryers, compensator assembly, control system/console/panel, hydraulic cylinders, piping system

(b) The following equipments are to be subjected to a hydraulic test at rated working pressure.

(i) Drill string compensators: compensator assembly, control system/console/panel(in case

of hydraulic or pneumatic controls), hydraulic cylinders, piping system, pressure ves- sels

(c) The following equipments are to be subjected to a pneumatic test in accordance with

design codes and standards

(i) Drill string compensators: accumulators

(D) Testing of bulk storage, transferring and mud circulating systems

(a) The following equipments are to be subjected to a functional test.

(i) Bulk storage and transferring systems: piping for transfer system

(ii) Mud circulating systems: agitators, chemical mixer, degasser, desander and desilter, piping systems, mud pumps, shale shakers, circulation head, control system/con-

sole/panel, charge pumps, swivel, kelly, kelly cocks, flow control valves, internal

BOP, mixing pumps, mud booster hoses, mud booster piping, mud-gas separator,

Piping for circulating drilling fluid to the well, pulsation dampeners, rotary hoses (iii)Cementing systems: cement pump, centrifugal pumps for mixing cement, cementing

manifold, flexible hoses, piping systems, pulsation dampeners, safety valves

(b) The following equipments are to be subjected to a hydraulic test at rated working pressure.

(i) Bulk storage and transferring systems: piping for transfer system

(ii) Mud circulating systems: degasser, piping systems(except piping from mud-gas sepa- rator to burners or vents), mud pumps, circulation head, control system/con- sole/panel(in case of hydraulic or pneumatic controls), charge pumps, swivel, kelly, kelly bushing, kelly cocks, flow control valves, internal BOP, mud booster hoses, mud booster piping, mud-gas separator, piping for circulating drilling fluid to the well, rotary hoses, standpipe manifold

(iii)Cementing systems: cementing manifold, flexible hoses, cement pump discharge pip- ing

(c) The following equipments are to be subjected to a pneumatic test in accordance with design codes and standards

(i) Bulk storage and transferring systems: bulk storage tanks

(d) The following equipments are to be subjected to a leak test

(i) Mud circulating systems: mud tank, trip tank

(E) Testing of hoisting, lifting rotating and pipe handling system

(a) The following equipments are to be subjected to a functional test.

(i) Hoisting systems: crown block including support beams, drawworks, drill wireline spoolers, elevators, gears for hoisting equipment with rated power of 100 kW and over, hydraulic cylinders for overhead lifting, links, power swivel, rotary swivel, sheaves for crown block and traveling block, traveling block including guide track and dolly, travel block hook, wireline unit

(ii) Lifting systems: base mounted winches, BOP handling crane, crane type lifting equipment, manrider winches, personnel baskets, pipe racking mechanism

(iii)Pipe handling systems: bridge crane, catwalk ramp, finger board, monkey board, guide track and dolly, horizontal to vertical equipment, hydraulic or air slips, hy-

Guidance Relating to the Rules for the Classification of Mobile Offshore Drilling Units 2015 27

(b)

draulic cathead, manipulator arms, mechanical mousehole, mechanical stabbing board, control system/console/panel, hydraulic power unit, Iron roughneck, kelly spinner, power slips, power tongs, tong suspension

(iv) Rotary systems : rotary table

The following equipments are to be subjected to a hydraulic test at rated working pressure.

(i) Hoisting systems: hydraulic cylinders for overhead lifting, power swivel, rotary swiv- el

(ii) Lifting systems: base mounted winches, BOP handling crane, crane type lifting

equipment, manrider winches, personnel baskets, pipe racking mechanism

(iii) Pipe handling systems: bridge crane, catwalk ramp, horizontal to vertical equipment,

(c)

hydraulic or air slips, hydraulic hydraulic power unit

The following equipments are to be

cathead, manipulator arms, mechanical mousehole,

subjected to a load test in accordance with Pt 9,

(d)

Ch 2 of Rules for the Classification of Steel Ships.

(i) Lifting systems: base mounted winches, BOP handling crane, pipe racking mecha- nism

(ii) Pipe handling systems: stabbing board

The following manriding equipments are to be subjected to a load test at 200% of SWL, a static brake capacity test at 200% of SWL, a dynamic brake capacity test at 125% of SWL.

(i) Lifting systems: manrider winches, personnel baskets

(F) Testing of well test system

(a) The following equipments are to be subjected to a functional test.

(i) Well test equipments: burner boom, burner piping, control system/console/panel, elec- trical submersible pumps for overhauling of wells(pressure side), piping system, pres- sure vessels, pump, valves

(b) The following equipments are to be subjected to a hydraulic test at rated working pressure.

(i) Well test equipments: control system/console/panel(in case of hydraulic or pneumatic

controls), electrical submersible pumps for overhauling of wells(pressure side), heat exchangers, piping system, pressure vessels, pumps, valves

(G) Testing of prime mover and miscellaneous

(a) The following equipments are to be subjected to a functional test.

(i) Prime mover: prime movers regardless of rated power

(ii) Miscellaneous: drillers console, control system components, BOP transporter

(b) The following equipments are to be subjected to a hydraulic test at rated working pressure.

(i) Miscellaneous: BOP transporter, expansion joints

5. Commissioning surveys of the drilling systems

(1) Commissioning of all drilling systems is to be verified by an attending Surveyor and is to be in accordance with the Society agreed test procedures. The Surveyor are at a minimum to sur- vey following items during the drilling system trials.

(A) Proper hook-up and testing of the entire drilling system equipment and components is com- pleted prior to commissioning. This is to include all tests required in Par 4.

(B) Necessary safety precautions are taken during commissioning, which are to include checks of operational readiness of the fire and gas detection system, fire extinguishing system, ESD systems, unobstructed escape routes, etc.

(C) Necessary communication procedures are established prior to commissioning.

(D)

Necessary emergency procedures are readily available to deal with any contingencies such as spillage, fire, and other hazards.

(E) Readiness of all utility support systems, including main and auxiliary sources for the drilling

system, prior to commissioning. Random start-up and testing of the utility support systems to extent deemed necessary by the attending Surveyor.

(F) Readiness of the purged drilling system, and associated alarms and shutdowns, prior to com-

missioning, and random testing of the purged alarms systems during commissioning, to the satisfaction of the attending Surveyor.

(G)

Proper operation of the mud level alarms while the drilling system is running, including

random simulation of associated alarms.

28 Guidance Relating to the Rules for the Classification of Mobile Offshore Drilling Units 2015

(H) Proper operation of the hazardous area access and ventilation system while the drilling sys- tem is running, including random simulation of associated alarms and shutdowns.

(I) System's capability to control the flow of the well affluent in a stabilized manner, without

undue control upsets, when drilling medium is introduced into the system.

(J) Satisfactory functioning of all drilling systems installed onboard and covered under this Annex. This will include witnessing proper function of the following systems, as applicable, while simulating actual drilling operations to the extent possible and practicable, and to the satisfaction of the attending Surveyor.

(a) Well control system

(b) Marine drilling riser system

(c) Drill string compensation system

(d) Bulk storage, circulating and transfer system

(e) Hoisting, lifting, rotating and pipe handling system

(f) Well test system

(g) Miscellaneous support systems

(K) Satisfactory testing of all ROV intervention functions on the subsea BOP stack during the stump test and testing at least one set of rams in initial test.

(L) Satisfactory functional testing of autoshear, deadman, and EDS systems on the subsea BOP

stack during the stump test.

(M) Starting up of the permanent well test system, if applicable, including precautions taken to eliminate the risk of explosion or fire.

(N) Post-commissioned drilling system is in stabilized and satisfactory functioning order for du- ration of at least 12 hours.

(O) Satisfactory functioning of the emergency power equipment to ensure proper operations.