Typical scope of work included in a specialist BOP and Well Control inspection:

1.	Review of well control log book and well control equipment PMs
2.	NDT - MPI inspection records of BOP equipment, BOP and Riser handling tools & equipment
3.	Bolt torqueing equipment and bolt condition survey
4.	Drape and Flex hoses, Moonpool and LMRP and hose management
5.	BOP carrier or equivalent and BOP transporter systems
6.	Visual Inspection Annular BOPs
7.	Visual Inspection Ram Type BOPs including Shear Rams and Pipe Rams
8.	Verification of Shear Ram capabilities including comment on design of shear rams and whether shear rams capable of centring drill pipe
9.	Review dimensional checks on the RAM BOP cavities and the rams
10.	Inspection of the BOP mounted Choke and Kill valves
11.	Visual inspection of wellhead connector and LMRP connector
12.	Verification of the LMRP connect / disconnect systems, including confirmation of BOP latch and unlatch capabilities and suitability of guide frames and posts
13.	General condition inspection and tests including hose & pipework installation condition and wellbore condition
14.	BOP LMRP framework and guide structure
15.	Surface and Subsea Accumulator pre-charge pressures, including depth compensation calculations in accordance with OEM
16.	Verification of marine riser, termination and telescopic joints
17.	Analysis of Diverter system hook-up
18.	Analysis of BOP controls system hose installation and hook-up
19.	Verification of Conventional Hydraulic Controls or MUX Controls and related software. See MUX workscope below.
20.	Planned preventive maintenance system
21.	BOP and related equipment pressure tests in accordance with API S 53
22	Operator chamber tests - pressure and function - in accordance with API S 53
23.	BOPs and control system function tests- in accordance with API S 53
24.	BOP Hydraulic closing system tests (Accumulator Drawdown)
25.	Choke and Kill Manifold plus related equipment
26.	BOP and LMRP and other procedures including Drift Testing Annulars to ensure that required down hole tools will pass through the Annulars / BOP without causing damage or hanging up.
27.	Deadman Auto-shear and Emergency Disconnect System (EDS) inspection and testing in accordance with API S 53.
28.	Verification of subsea Acoustic systems
29.	Oversee surface ROV Critical Function - hot stab function tests
30.	Verification of Drill String Compensator (DSC) & Anti-Recoil System
31.	Inspection and review of Marine Riser Tensioner (MRT)System
32.	Inspection and review of Guide line Tensioner (GLT)System
33.	BOP Critical Spare Parts inventory

BOP MUX Workscope:

1.	Verification of MUX hardware and software.
2.	BOP MUX Control Panels, Central Control Unit (CCU) and HMI’s – verify installation location, functionality and operation
3.	Verification of control panel and BOP pressure instrumentation
4.	Verification of surface electronic systems and subsea electronic modules (SEM)
5.	Verification of MUX control signal continuity and integrity – analogue & digital and electrohydraulic
6.	Verify the operation of MUX emergency control systems.
7.	Review BOP data logger history and trend analysis.

Reference documents typically used:

Company Specific Well Control Manual

API SPEC 6A – 21st Edition, November 2018 - Specification for Wellhead and Tree Equipment

API Standard 16AR – 1st Edition, April 2017 - Standard for Repair and Remanufacture of Drill-through Equipment

API SPEC 16C – 2nd Edition, March 2015 - Specifications for Choke and Kill Systems

API SPEC 16D – 2nd Edition, July 2004 - Specification for Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment

API RP 16Q 1st Edition, November 1993 – Recommended Practice for Design, Selection, Operation and Maintenance of Marine Drilling Riser Systems

API SPEC 16R – 1st Edition, January 1997 - Specification for Marine Drilling Riser Couplings

API SPEC 17D – 1st Edition, October 1992 - Specification for Subsea Wellhead and Christmas Tree Equipment

API SPEC 17 E - 5th Edition, July 2017 – Specification for Subsea Umbilicals

API SPEC 20E – 2nd Edition, August 2017 - Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries

API SPEC 20F – 1st Edition, June 2015 - Corrosion Resistant Bolting for Use in the Petroleum and Natural Gas Industries

API Standard 53 - 5th Edition, December 2018 – Well Control Equipment Systems for Drilling Wells

API RP 7HU1 – Safe Use of 2-Inch Hammer Unions for Oilfield Applications

API RP 7L - Procedures for Inspection, Maintenance, Repair and Remanufacture of Drilling Equipment

API RP 59 – Recommended Practice for Well Control Operations

API Standard 64 – 3rd Edition, August 2007 - Diverter Systems Equipment

API Standard 598 - 8th Edition, May 2004 – Valve Inspection & Testing

CAREERS | PRIVACY POLICY | TERMS OF USE | SERVICES TERMS & CONDITIONS

© ABERDEEN DRILLING CONSULTANTS LTD 2019 ALL RIGHTS RESERVED