About Us

Global Experience

Our consultants have experience in some of the most demanding locations in the world. From high-tech locations in the North Sea to remote jungle operations.

All of our consultants have previous experience within service companies and working directly with operators. The minimum level of experience is 10 years within the sector.

CVs are available on request here. We will find the right fit for your operations. We believe that the relationship between our clients and our consultants, as your interface at the wellsite, is the key to smooth operations. We aim to build this relationship by assigning experienced individuals to your project.

Meet the Team

Jack Willis

Operations Director

Background: Schlumberger Wireline
Industry Experience: 18 Years

Jack has worked in the upstream oil & gas industry since 1999. Initially with Schlumberger in the technically demanding offshore environment of Aberdeen, providing open-hole and cased-hole/perforation services and then working internationally in Trinidad and Brazil specialising in MDT operations for BP. Jack was responsible for developing the UK pipe conveyed logging (TLC) procedures and training video for deviated wells. He is also a trained ISO (IRCA) internal auditor, seismic engineer, and a certified Marine Mammal observer (MMO).

Following his MBA, Jack continued his work as a consultant setting up a Schlumberger high volume land operations base in Romania and the Ukraine, taking it through the internal Schlumberger Quality Management System Audit and developing the organisation from 5 people (in a small container), to over 100 in a fully equipped land location within 3 years.

Since 2010 Jack has been working in a consultancy role for one&zero acting directly for oil & gas companies around the world, providing technical, commercial and operational expertise under and gaining significant exposure to different service providers. He has consulted in the North Sea, Denmark, Ireland, Angola and Peru. He has extensive experience with tender evaluation from all the major service providers.

Today Jack’s primary responsibilities include

  • Leading the development of scale-able business systems (which work)
  • Building quality relationships based on trust with our clients and their vendors
  • Finding the best people and letting them thrive within our learning environment
  • Prioritising and selecting new technology in-line with our business needs
  • Implementing one&zero’s growth strategy
  • Staying true to one&zero’s core values

Jaimin Jethwa

Lead Consultant

Background: Schlumberger Wireline & M/LWD
Industry Experience: 14 Years

Jaimin has dual British and Kenyan nationality and currently lives in Aberdeen. He started in the oil & gas industry in 2006 as a wireline field engineer with Schlumberger. His first posting was to Cameroon, followed soon after by Angola where he spent 2 years working for Sonangol and Total.

He has subsequently worked in Gabon, Congo, Uganda, Mozambique, South Africa, UKCS, Denmark (Dong) and Greenland, with training conducted in the UAE, USA, Canada, Norway and France. During his time in South Africa he was the Engineer in Charge, managing the wireline operations base for Schlumberger.

Jaimin spent the last 4 years of his career in Schlumberger as a formation testing and sampling specialist and trained as a reservoir engineer by Schlumberger Data and Consulting Services (DCS – Now SIS). He spent his final two years in Schlumberger as the training and development manager across Europe, Africa and Russian & Caspian regions.

Since joining one&zero he has been involved with the co-ordination of wireline operations in the UK & Norway. Jaimin has played a key role in the development of our auditing tools for M/LWD operations (MorpheusTM) and provides extensive operational planning support for wireline and M/LWD operations.

Alistair Taylor

Wireline QA/QC Consultant

Background: Schlumberger Wireline / BP Operations Petrophysicist
Industry Experience: 24 Years

Alistair started his career in 1993 and has since worked with a large number of IOCs. His technical strength lies in both open and cased-hole logging, deep water, perforation and seismic operations. He has worked globally; from the North Sea, to West Africa, the Far East and Brazil, gaining experience in operations management, contract and financial planning.

Alistair’s experience in wireline operations is built on his 18 years of field experience within Schlumberger. Following the completion of his degree at Heriott-Watt he was trained in open-hole and cased-hole services during his training period in Schlumberger. He became a General Field Engineer in 2001. He was subsequently chosen to be a lead engineer for a number Schlumberger’s key clients globally, including Petronas and Exxon Mobil.

Following his extensive Schlumberger career, Alistair was given a role in BP who recognised his wealth of knowledge as a valuable asset. BP provided further training in petrophysics including the use of Techlog and specific training on cement bond log evaluation. His role in BP provided a solid basis for his current work with one&zero, providing expert support during the planning, preparation, execution and post-job phases of wireline logging operations.

Michael Tosh

Drilling & Measurement Lead

Background: Halliburton MLWD Technical Advisor
Industry Experience: 10 Years

Mike is based in Aberdeen and is the primary M/LWD technical advisor for one&zero. He has previously worked in various roles with Halliburton Sperry. Joining as a graduate of University of Aberdeen with a Bachelors degree in Geology and Petroleum Geology, he initially worked in Surface Data Logging (SDL/SLS) before moving over to M/LWD as a field engineer, later specialising in Geosteering and well bore placement positioning. He subsequently moved into the role of Technical Advisor responsible for delivering high levels of service quality for ConocoPhillips, Zennor Petroleum, Hurricane Energy, Apache, Premier Oil, Energean, Noble Energy amongst other clients. Mike has extensive experience in high temperature drilling environments (HPHT) and managed pressure drilling.

Mike’s role for one&zero is to bring his expertise in the realm of MLWD to one&zero’s QA/QC systems and processes. As drilling & measurement lead, he is focussed on evolving our business scope and bringing value to our new and existing customers.

Paolo Corciulo

Wireline QA/QC Consultant

Background: Schlumberger Wireline
Industry Experience: 14 Years

14 years of international field (PFE) and management (EIC) experience with Schlumberger wireline. Now maximising data quality and co-ordinating wireline operations for the clients of one&zero.

An Aerospace Engineer with experience working at the European Space Agency, Paolo is an Italian with a flair for languages. He worked for the ESA and Boeing, before joining Schlumberger as a Field Engineer in Italy, working across Europe.

Before joining the team at one&zero, Paolo was one of the new breed of Field Engineer, developing strong cased-hole and open-hole services proficiency and was rewarded with his General Field Engineer role in 2010. He was promoted to Professional Field Engineer (PFE) and recognised as a true leader in his profession, with skills, experience and capability matched by very few globally. Working mainly in Norway and integrally involved with frequent record breaking and trend setting innovations in wireline engineering, he delivered operations in deepwater, HPHT, high tension and unconventional settings including Tractor and Capstan technologies.

In 2016 Paolo was promoted to Engineer in Charge of the Continental Europe operations base, overseeing and running high profile operations and working closely with management and sales to ensure customer service delivery.

More recently he has been involved with high profile operations with one&zero, co-ordinating wireline operations with Hurricane Energy, BP and Perenco and Siccar Point in the North Sea.

Lindsay Herbert

Wireline QA/QC Consultant

Background: Wireline QA/QC Consultant Industry Experience: 29 Years

Lindsay is recognised within the wireline and reservoir evaluation world as a leading expert. He has an extensive CV within the industry dating back to 1990 with Schlumberger as a PVT lab technician. In 1995 he started his career with Schlumberger Wireline in the UK, initially as a field engineer working with early versions of MDT. He was transferred to Kazakhstan in 1995 where he worked for 3 years as a lead engineer before becoming a wireline training instructor in the British training School in Edinburgh.
From 2005 to 2008 Lindsay helped set-up the first real-time remote support center in Aberdeen, supporting wireline operations remotely across Europe. This facility set the standard for Schlumberger worldwide. Subsequently he was rewarded with a role in DCS (Data Consulting Services) as a reservoir engineer in 2008 working in the UK. He was promoted to Reservoir Domain Champion in Oman in 2012.
In 2015 Lindsay become the D&M and Geology Domain Champion in Houston Texas for Schlumberger before taking his Masters in Reservoir Evaluation and Management in Heriot-Watt University in 2018.
Lindsay has continued his work liaising with, and providing support to clients in relation to wireline operations for one&zero.

Sandy Duncan

Cased-hole wireline consultant

Background: Schlumberger Wireline (Cased-Hole)

Industry Experience: 28 Years

Sandy joined Schlumberger in 1990 working as a crew member for both open and cased-hole services. His skills were quickly recognised and moved quickly through the ranks including positions as field engineer, engineer in charge, field services manager, integrated project manager, new technology manager and finishing his time with Schlumberger a business development manager in 2015.

We can safely say that Sandy knows the wireline business from the ground up, with cased-hole a focus. He is currently providing this cased-hole logging support to one&zero on a consultancy basis and is proving a valuable member of the team.

He has international experience having worked in the UK, Caspian and Middle East North Africa regions.

Chris Wells

Wireline QA/QC Consultant

Background: Baker Hughes / Gaia Earth Sciences / Probe
Industry Experience: 14 Years

Chris started in the oilfield with Baker Hughes wireline in 2006 in Aberdeen. He progressed to Senior Field Engineer in his first six years. During this time, he specialised in open-hole and cased hole services with a focus on RCX and other front-end services.
Chris worked as an independent wireline witness for the following six years whilst undertaking two MSC’s in Petroleum Engineering and International business Management. His client list included Ineos, Apache, Nexen, Hunt, and Murphy.
Since 2017, Chris has worked as an engineering advisor to Probe technologies, a global leader in downhole production and reservoir monitoring technologies.
He joined one&zero at the end of 2018 to utilise his extensive knowledge, providing one&zero’s clients with quality advice in relation to the planning, preparation and execution of wireline operations.

Thorsten Krause

Wireline QA/QC Consultant

Background: Baker Hughes
Industry Experience: 25 Years

Graduating with a Masters in Geology, Thorsten began his Oil & Gas career in 1990 working for Baker Hughes (at the time known as Western Atlas) as a logging engineer. Since then, he has built up a wealth of experience with over 25 years in the industry, specialising in in open hole and cased hole wireline logging, with specific training in Magnetic Resonance, Reservoir Characterization, Production Logging and Reservoir Performance Monitoring.

Throughout his career he has worked globally on projects in Europe, UK, Africa, Middle East and Asia, and for a range of global and local operators including AGIP, Anadarko, BP, Cairn, CNOOC, Gazprom, Marathon, MOL, Noble Energy, Tullow, Petro Vietnam, among others. Operations experiences is varied to include onshore, remote operations, deep water, and a range of wireline, coiled tubing, drill pipe and tractor conveyance.

During his time and Baker Hughes, Thorsten has held various roles from his starting Jr Field Engineer, Field Engineer, Snr Field Engineer, General Field Engineer, and Engineer in Charge, responsible for satellite base operations. As Engineering Charge, he has held client facing roles globally, where being fluent in German, English, Italian and French was used to help establish lasting technical and personal relationships.

With a methodical mind and an eye for detail, Thorsten has helped design, create and implement various procedures, both for Baker Hughes and also since joining one&zero. His main roles at one&zero are operational planning, audits, equipment preparation and rig site witnessing.

Martin Hayes

M/LWD QA/QC Consultant

Background: Schlumberger M/LWD Engineer/ Drilling Engineer & Tullow Drilling Engineer
Industry Experience: 22 Years

Martin’s role at one&zero is primarily contract analysis and tender review and auditing, for DD, LWD, MWD and Well Engineering. His experience comes from a technical and sales background which was formed within the service provider and operator environments, and gives him a real insight into what clients need and what vendors offer. Martin is based in Norwich.

Beginning his oilfield career in mudlogging, he moved through the ranks as a Field Engineer with Schlumberger D&M, before being recognised for his technical ability and becoming a Schlumberger training school instructor. In this role, he was at the forefront of new technology and measurements, pioneered full cross segment training and managed classes for students from all over the world.

His next role as a Drilling Engineer in Aberdeen gave him exposure to multiple clients, drilling techniques, environments and methods, and he continued to teach as a NExT instructor. This was a core technical support role where well engineering and design were the everyday work.

After leaving Schlumberger, Martin joined Torus Insurance in London, working as an Account Engineer. The focus in this role was risk assessment, well control and well engineering risk modelling, giving him a real insight into the business aspects of well engineering. Before consulting with one&zero he moved to Tullow Oil as a Senior Drilling Engineer, project leading the Ghana TEN developments and being responsible for drilling and well construction input into the project from FEED to delivery. A summary of Martin’s CV is found below: