Patrick Brenan Email & Phone Number

Perth, Western Australia, Australia

Responsible for: developing and fostering the regulatory relationship; providing technical and governance assurance; critically assessing workflows and processes for their efficiency and efficacy; identifying, developing alternatives and implementing performance improvements across the Australian wells business.

Perth, Western Australia, Australia

OWE is a consultancy that provides expertise in Process Safety and Well Engineering with particular emphasis on complex problems, higher risk wells and subsea source control. Through its Advisory service, provides Industry leadership and support for a range of activities that facilitate Industry's capability in the area of subsea source control and response.

Dallas, Texas, United States

Within Kosmos, the Well Integrity Management Standard (WIMS) also acts as the foundation policy document that governs the organisations Drilling, Completions and Well Operations groups. This position is responsible for defining and guiding the implementation of WIMS, following relevant industry standards and Industry best practices. The role understands different regulatory requirements and how they interact with WIMS, serves in the capacity of the Company’s Well Integrity Technical Authority, provides independent review and assurance (similar to Well Examination) for all Drilling, Compltions and Testing activiteis across the organisation as well as provides technical support and peer review functions to the Business Units. Assess’ technical risk and where risk limits appear to exceed or have the potential to exceed those that are tolerable to the organisation, there is a duty to report those upwardly to the Senior Vice President or CEO. Participates in technical advocacy on behalf of Kosmos. Responsible for the company’s international source control efforts and sits on the Gulf of Mexico’s HWCG Intervention Technical Committee (DITC). Permanent position in the HSES Management Committee and Supports the HSE Functions Incident Management Plans and in reviewing their Policies and Standards. Inovolved in Business Development and New Venture opportunities providing a range of technical assurances or risk assessment.Company representative to the IOGP where I am a member of the Wells Expert Committee, Chair the Subsea Well Response and Source Control Sub-committee and am a member of the Well Standards Sub-committee. Active in writing Reports 592, 594 and 595. I am also heavily involved with industry advocacy efforts in the area of source control and response capability with Regulators.

Dallas/Fort Worth Area

Planning and supporting operations for the company’s exploration and appraisal well program in Mauritania, Senegal and Suriname. Water depths were 2,400-3,000m with reservoirs 2,500-3,500m BML. All exploration wells were Rank Wildcats requiring a depth of engineering expertise to safely deliver. The role would also involve the usual optimisation and problem solving required enhance performance. Some of my key contributions towards perofrmance enhancement had to do with mud performance, BHA design and cement reliability. In addition, I would be invovled in business development and new ventures activiteis which would involve assessing new areas, participating in data room activities, evaluating risk and preparing cost estimtes.

Kuala Lumpur

Residing in the central Engineering department of PCSB this diverse role involves general oversight and technical assurance.1. Providing assurance and assistance to the business and project teams that their proposed activities are technically robust and comply with Petronas Technical Standards and Malaysian regulation with particular emphasis on HPHT and complex higher risk wells.2. Provide expert technical advice on various topics pertaining to well engineering and equipment.3. Writing technical manuals and policies. Specifically for 2014: Blowout Contingency Planning, Casing Design, Well Control and HPHT Well Planning.4. Integration of HPHT best practices and engineering into the broader business.5. Assessment and implementation of new technologies.6. Organisational capability.7. Support Drilling Contracts Department on reaching agreeable commercial outcomes with service providers where there are disputes as well as generate and follow through with performance improvement plans where there are service deficiencies.Following wells with up to 500 degF BHST and 18000 psi BHP.

Kuala Lumpur, Malaysia

Primary Role:Responsible for all of the well engineering for Petronas Carigali's first HPHT field development, Kinabalu Non Associated Gas. The manned platform field development is complex due to very high and rapid changes in pore pressure coupled with severely depleted overburden reservoirs. I had a team of engineers working with me who I mentored and co-ordinated through the planning process. As with all integrated projects, I regularly liaise with subsurface, facilities, supply chain and management teams and provide a pivotal role towards project execution and design strategy. Some personal project achievements and highlights:1. Worked unsupported with a very slim team mainly made up of young engineers.2. Introduced new processes to the team to help better manage the project and promote understanding: Acceptance criteria, barrier assessment, bow tie risk assessments, risk register, HPHT cementing check lists inclusive of setting up stress analysis and basis of designs for casing & completion, cementing, MPD and mud.3. Introduced a new concept of big bore well design to the company and first of its type in the region.4. Introduced the concept of limit state and rupture design for casings. Used the methods to overcome significant casing design challenges. 5. Worked with service providers to develop qualified new equipment and technology for: Liner systems, 17Cr tubing qualification (unsuccessful), VAM HP connectors, tight tolerance centralisers.6. Prepared and led tenders for all equipment.7. Performed geomechanical analysis and worked with mud company to develop a solution for drilling across severely depleted reservoirs without losses or stuck pipe. 8. Wrote HPHT Joint Operations Manual which will also become a Petronas Technical Standard in 2014.BHP 17,700 psi, MASP 15000 psi, BHST 310F, 19 ppg mud.

Browse Basin (Deepwater Hpht, Limestone, Fractured Reservoir)

Argus-2 is Woodside’s first HPHT well. Around 6 weeks prior to spud, the company asked if I could assist with detailed engineering assurance which then extended into operations planning and oversight of subordinate engineers. The contract was a short term contract. Drilled in 600m of water the well achieved a new basin record for top hole drilling setting a new benchmark. This was achieved by building on lessons learned from within the area as well as bringing in personal knowledge to make some minor changes to things like bit design and section strategy. The well also ended drilling large fractured limestone intervals where pore pressure was less than 100 psi lower than minimum horizontal stress leaving a 50 psi drilling window also between known hydrocarbon bearing zones. In addition, the HPHT interval turned out to be fractured sandstone reservoirs creating a number of well control challenges. Key deliverables and responsibilities were:• Responsible for ensuring the well is drilled safely and as efficiently as possible.• Review existinng well design and provide assurance that proposed plan is robust. • Following the assurance work, re-design required and delivered with existing tangibles.• Re-visit government submission with new well design.• Co-ordinate service companies for the detailed preparatoin of mud, cement and directional drilling programs. In particular, ensure HPHT specifics are included.• Review rig equipment and recommend changes where required or develop specific procedures taking account of rig limitations.• Review well control procedures and bridge with HPHT well control procedures.• Write detailed HPHT drilling and well control procedures.• Write detailed drilling programme.• Provide operations support for drilling activities.BHP 11,400 psi, BHST 175C, 14.5 ppg mud.

Jordan

The BP Jordan Risha project is a 220 degC gas development. In January 2011, the project entered the detailed design and engineering phase for which they requested my assistance. Due to the very high surface temperatures (~175 degC), requirement for full 15k psi hydraulic fracturing requirements, corrosive production fluids and a remit to engineer out human interface as far as reasonably possible the scope presented many challenges. I was asked to assist the team with a short term project in verifying their high level well design and maturing the engineering into a detailed design ensuring it could meet the rigors needed for a 20+ year production life. Key deliverables were:• Detailed casing design for drilling, stimulation and production loads (working with completion & stimulation engineers).• Annuluar pressure build up analysis.• Wellhead growth analsyis.• Wellhead load analysis and verification of wellhead crtical component load ratings.• Verification that proposed liner systems were correctly rated for specified well requiremetns.• Barrier assessment and co-ordination with cementing specialist on establishing the cement basis of design requirements. • Development of an operating window and set of minimum requirements for operational teams so as to ensure well objectives are met.

Luanda Rotating

Sonangol Pesquisa & Producao is the upstream (E&P) segment of the Angolan state oil company, Sonangol.Reporting to the Drilling Superintendent I am responsible for the planning and operations of one of the first HTHP wells drilled in Angola. Due to its unprecedented depths and pressures, the deep part of the well is considered a wildcat. Sonangol to date has no former HPHT experience and a large part of my role involves the creating of sound HPHT practices and guidelines.My responsibilities are:- Tendering of a 15k Jack Up MODU for the 5 company consortium who will use it. - Delivery of overall well project inclusive of costs and co-ordination of work activities with other senior technical personnel.- Delivery of all well planning activities.- Development of HPHT drilling procedures for Sonangol PnP to ensure safe execution.The well is due to spud late 1-2Q 2010.

Reporting to the Drilling Superintendent this was a short term role to support drilling activity in Block 3. Block 3 was recently aquired by Sonangol following a previous operators production license expiry. This particular reservoir is severely depleted fractured and vuggy dolomite where formation pressures transition from a 13 ppge overburden pore pressure to a 5 ppge reservoir pressure. I joined the team as the 20” casing had been set. My responsibilities were:- Liaise as focal point for all operational matters with the rig.- Develop and write detailed operational guidelines and ensure their safe and efficient execution.- Safe and efficient delivery of all drilling operations. - Mentoring and development of Angolan trainee engineers.- Management of 1 drilling engineer reporting to me.

BP Egypt’s HPHT exploration wells are considered the most complex within the BP global well portfolio. Drilling conditions are categorized by a largely unknown and very challenging PPFG regime which features a number of severe pressure ramps and very narrow drilling windows. Big bore tight tolerance well designs are fully utilized for primary casings with expandable contingencies available for shallow sets. Unlike Nile Delta West Med, East Med is not deepwater, but rather drilling from a 15k Jack Up.During this time I was involved in:1) West Akhen-1 re-entry and sidetrack.2) West Akhen-2 re-entry and sidetrack.3) Satis-2 appraisal well.4) Satis-1 & 2 DST programme.Reporting to the Engineering Team Leader primary responsibilities were the planning and preparation of HTHP wells with various non standard complications for both drilling and testing. After planning, the well programme would be handed over to the Operations Drilling Superintendent.During this time I was responsible for:1) Heading up 2 well HPHT sidetrack and workover project with marginal economics. One well involved liner drilling application due to reservoir depletion. One well involved statically underbalanced Managed Pressure Drilling techniques - a relatively new area of BP. Project was BP operated over a GUPCO (BP-Egyptian Government JV) concession. This involves working closely with GUPCO management.2) Following the first project, I was assigned to the Satis-2 appraisal well planning team to support the accellerated planning programme. A 15k HPHT appraisal well. As this was the first appraisal well after exploration, it involved introducing a number of design changes to optimise performance. 3) Following the well planning activities on Satis-2, I was assigned to the DST team to provide detailed well engineering, equipment integrity assessment and assurance for 2 x 15k DST’s on each of the Satis wells.

Reporting to the Engineering Team Leader via Senior Drilling Engineer, my role was to support the planning and execution of Deepwater tight tolerance well design HPHT exploration and appraisal well activity (15k Semi Sub). During this time I was actively involved in:1) Taurus Deep exploration well.2) Raven-3 exploration adn appraisal well.Key Responsibilities: Planning and operational support of HPHT deepwater exploration wells for West Nile Delta Operations. Well planning responsibilities included: Casing Basis of Design inclusive of contingency expandable casings. Procurement of all tangible equipment. Cement, Bit & BHA programs. Cost estimation, AFE generation and benchmarking. End of well reports. Coaching and mentoring of younger engineers. Exploring and implementing new technologies.BP Egypt Bit & Under Reamer Technical Authority. In this role I have additional scope for optimising bit, under reamer & BHA performance with ties into BP global best practices.Management of tenders for responsible contract areas.Technical Authority and Contract Administration Manager for 7 service lines.

The Claire Field was discovered in the late 70's and up until project sanction was the largest undeveloped field in the UKCS. In parallel with general well planning activities, one of my proudest accomplishments was with the Cuttings Re-injection work which not only developed a robust system for the Clair Field, but also introduced a new set of global best practices for BP.

NW Hutton was the first large scale platform decommissioning project undertaken by BP in the North Sea. As a member of the well abandonment and conductor recovery team, my role was to learn about such activities as well as to develop and implement a performance management and knowledge sharing system.Key Responsibilities: Development and implementation of the performance management system offshore. A soft role which focused on enabling top quartile performance (world class achieved).

Key Responsibilities: Learn about the day to day operations offshore, understand HSE principles and BP Drilling Policy. Gained experience in deep hole sidetracks, geomechanics, and well interventions - specifically snubbing and under balanced fishing in a LSA Barium Scale environment.

Education record

Education record

Honour the work!