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UK: Significant UK petroleum reserves could sustain production for next 20 years - OGA


08 Nov 2018

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The UK’s petroleum reserves remain at a significant level which could sustain production for at least the next 20 years and beyond if additional undeveloped resources can be matured.

The Oil and Gas Authority’s (OGA) ‘UK Oil and Gas: Reserves and Resources’ report, published Nov 8, shows that overall remaining recoverable reserves and resources range from 10 to 20 billion barrels plus of oil equivalent.

The findings of the report include:

  • The UK’s petroleum reserves remain at a significant level. The OGA’s estimate for proven and probable (2P) UKCS reserves at end 2017 are 5.4 billion barrels of oil equivalent, which could sustain production from the United Kingdom Continental Shelf (UKCS) for another 20 years or more.
  • In 2017, 400 million boe were added to 2P reserves and about 600 mmboe were produced which equates to a reserve replacement ratio of 69%; with 100 mmboe matured from new field developments, 80 mmboe due to infield activities and approximately 220 mmboe reserves replacement due to field-life extensions.
  • The UK’s contingent resource level (2C) is significant with a central estimate of discovered undeveloped resources of 7.5 billion boe. Much of this resource is in mature areas with 2.1 billion boe expected to be added through new field developments, 2.1 billion boe from incremental projects in producing fields, and the remaining 3.2 billion boe from undeveloped discoveries where no activity is currently being proposed.
  • The maturation of contingent resources presents a significant opportunity for the continued development of the UK’s petroleum resources. This will require substantial investment in both new field developments and incremental projects.
  • Exploration success in 2017 delivered an additional 181 million boe contingent resources. A key part of exploration stewardship is now to progress the many attractive opportunities within the prospective resource portfolio into drill-ready prospects, and into subsequent discoveries.
  • During the last two years the OGA has undertaken an extensive exercise with the British Geological Survey (BGS) to re-evaluate the UKCS mapped lead & prospect inventory which following volumetric, economic and risk adjustments is now estimated at a mean value of 4.1 billion boe.
  • The OGA has also undertaken statistical play analysis and an additional mean prospective resource of 11.2 billion boe is estimated to be contained in plays outside of mapped leads and prospects, with the proportion of gas being greater than 60%.

Nick Terrell, Chair of the MER UK Exploration Task Force and Managing Director of Azinor Catalyst commented:

'The work undertaken by the OGA, which has been independently verified, seeks to further quantify the huge remaining exploration potential of our UK offshore basins. The results illustrate the full spectrum of exploration opportunities, from infrastructure led exploration to high impact deep-water frontier opportunities. I commend the Oil and Gas Authority for undertaking this work in conjunction with the industry led Exploration Task Force and look forward to further results being published in the future.'

Gunther Newcombe, Operations Director at the OGA added: 'OGA’s current estimate of remaining recoverable hydrocarbon reserves and resources from UKCS’s producing fields, undeveloped discoveries and mapped leads and prospects is in the range 10 to 20 billion boe plus. Extended field life, due to lower operating costs and higher oil price, additional producing field incremental projects, actively worked undeveloped discoveries, and a robust prospect & lead inventory, supplemented by a significant upside potential derived from statistical play fairway analysis, are all key factors in making the UKCS a world class petroleum province.

'The OGA has an important role in helping to steward this resource base, revitalise exploration and maximise economic recovery, working closely with industry and government. Future success of the basin requires attracting additional investment and drilling, implementing technology, and company collaboration on new and existing developments.'

Original article link

Source: OGA





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