N336 Carbonate Reservoir Description Based on Core and Well Data (Nottinghamshire, UK)
N336 Carbonate Reservoir Description Based on Core and Well Data (Nottinghamshire, UK)
Data obtained from core are critical components of exploration and development programmes, yet all too often the “soft” information obtainable from core is undervalued and underutilized. The integration of core and wireline logs with other data from carbonate reservoirs is key to: constructing reservoir-scale depositional models; referencing critical correlation horizons; understanding pore-scale issues; validating reservoir architectures; recognising and predicting heterogeneities and improving simulation models for reservoir performance and development planning.
This five-day course will take the form of a practical workshop using cores, wireline logs, thin-sections, and core measurements supplemented by lectures, discussions and a half-day field excursion to the Castleton area to the northwest of Nottingham. The course will be taught through the extensive use of core and associated datasets at the British Geological Survey facility in Keyworth, UK. Core examination and related practicals will be supported by lectures and a local field excursion that will provide a sense of scale and demonstrate the limitations inherent in a 1-dimensional core dataset.
Participants will learn to:
This is a five-day core seminar based at the British Geological Survey core laboratory at Keyworth near Nottingham. Themed lectures will introduce suites of carbonate and evaporite cores and associated datasets from onshore and offshore UK wells, the Middle East and North Africa. There will be a half-day field excursion to an exhumed Early Carboniferous boundstone/grainstone carbonate platform margin and interior in the Castleton area to the north of Nottingham.
The integration of core and borehole logs with other data from carbonate reservoirs, in particular, is key to:
These topics will be addressed and discussed through examination of a range of core and data suites of the principal carbonate reservoir types:
Probable cores and datasets include:
Participants arrive in Nottingham for the start of the course.
Icebreaker and introduction to the course.
(Note that the group will be travelling daily by coach or minibus from the hotel in Nottingham to the BGS facility in Keyworth, a distance of around 10 miles. All transport will be arranged.)
Day 1: Value of core in carbonate reservoir studies:
Core vs other data sources (e.g. wireline logs, seismic, etc.); Description techniques (core logging, sample selection, mineral identification, palaeontology, etc.)
Physical measurements on core (routine poroperm, SCAL, rock properties, whole core analysis, CAT-scan, ambient vs reservoir condition measurements, hardness, reconciling with other data, etc.)
Day 2: Carbonate sequences, cycles and surfaces:
Carbonate platform architecture in a sequence stratigraphic framework, including the critical issue of cyclicity and the impact of stratigraphic surfaces on reservoir quality: surfaces (sequence boundaries, exposure surfaces, karst); recognition and implications of repetitive successions, cycle scales, stacking patterns and reservoir architecture
Day 3: Unconventional carbonates and source rocks:
Source rocks and pelagic/hemipelagic successions
Field excursion to Castleton area, Derbyshire:
A Carboniferous platform and its exhumed petroleum system
Day 4: Correlation in carbonate and carbonate-evaporite systems:
Correlation issues in salt basins; large scale stratal geometries and clinoforms.
Basin-platform sequences in salt basins
Jurassic oolitic reservoirs, onshore UK
Day 5: Large multi-data exercise:
Core description and interpretation, integration of well log suite, core plug and petrographic data, extrapolation and correlation with additional well logs to plan the location of a step-out well. Cores and data sets from a producing field in North Africa. Review of interpretations. Course finishes by approximately 1600.
This course is designed principally for geoscientists, geomodellers and reservoir engineers engaged in the characterisation, appraisal and development of carbonate reservoirs. It will provide an understanding of the key carbonate reservoir heterogeneities as well as the limitations of subsurface data that will be valuable in building static and dynamic reservoir models.
The course is an advanced course and attendees are expected to have a basic knowledge of carbonate rocks and well log interpretation. Prior attendance on Foundation level course N020 (Carbonate Depositional Systems: Reservoir Sedimentology and Diagenesis) and N003 (Geological Interpretation of Well Logs) along with work-related projects will provide a suitable background.
This course is complimentary to our Skilled Level field courses including: N059 (Applied Carbonate Geology: Carbonate Facies and Reservoirs, Balearic Islands, Spain), N091 (Carbonate Reservoir Architecture and Applied Carbonate Sequence Stratigraphy, West Texas), N235 (Exploring for Carbonate Reservoirs, Dolomites), N143 (Advanced Concepts in Carbonate Exploration and Reservoir Characterisation, Northern Spain).
Full details of possible linking courses on the Nautilus portfolio can be found on the website at: training.rpsgroup.com
Click on a name to learn more about the instructor
Trevor Burchette studied the sedimentology and stratigraphy of the basal Carboniferous Limestone transgressioin in Wales and SW England. A Royal Society Post-doctoral Fellowship at the Technische Universität, Braunschweig followed, during which he investigated the sedimentology and stratigraphy of Devonian carbonate buildups in northern Germany and Belgium.
Trevor joined BP as a sedimentologist in 1980 where he has been the company’s principle carbonate adviser for over 30 years. Over this period, he has worked mostly international projects in both exploration and development environments. Trevor’s experience is global and has included major projects in Canada, Venezuela, Egypt, N Africa, SE Asia, Russia, and Europe. Over this period, Trevor acquired extensive experience in both carbonate reservoir characterisation and its impact on field performance and development strategies and in regional stratigraphic/exploration studies. Much of Trevor’s time over the last 13 years has been taken up with projects in the Middle East in the UAE, Kuwait, Qatar, Iran and Iraq. In Abu Dhabi he was BP geological representative for all of this period at numerous multi-disciplinary peer reviews and technical committee meetings dealing with quality assurance for the two principal national oil companies, ADCO and ADMA. More recently, Trevor has been involved in regional studies in several areas of the Middle East including the early Cretaceous in the northern Arabian Gulf.
For many years Trevor also led major lab and field courses for BP covering aspects of carbonate exploration and development, most notably in the Dolomites (“Carbonate seismic stratigraphy and exploration models”) and on Mallorca (“Applied carbonate sedimentology”), organised numerous core workshops and field trips, and also ran an internal carbonates web site. For twenty years, he was principle company contact for several external research groups.
Affiliations and Accreditation
PhD University of Newcastle, UK - Sedimentology and Stratigraphy
BSc University of Cardiff - Geology
N235:Exploring for Carbonate Reservoirs (Dolomites, Italy)
N236:Addressing Carbonate Reservoir Challenges (Mallorca, Spain)
N336:Carbonate Reservoir Description Based on Core and Well Data (Nottinghamshire, UK)
Paul Wright has worked on carbonates for over 40 years, holding positions at the universities of Bristol and Reading as well as the BG Chair in Applied Sedimentology at Cardiff University for ten years. For over five years from 2007 Paul was principal consultant sedimentologist and group technical authority for carbonates at BG Group. He has worked extensively on carbonate reservoirs in North Africa, offshore India, Kazakhstan and offshore Brazil, as well as in the Paris Basin, Abu Dhabi and West Africa. He has conducted field work widely in UK, Spain, Portugal, Oman and USA.
Paul has written over 140 research papers, and co-authored or edited several books including the main text book in carbonate sedimentology. He has supervised over 20 PhD students, most of whom work in the oil and gas industry. He has served on the editorial boards of several international journals.
He is now director of PW Carbonate Geoscience Ltd, specializing in consulting, training and mentoring in applied carbonate sedimentology. He is an honorary fellow at the National Museum of Wales, Cardiff.
Paul is the 2016 recipient of the Pettijohn medal for outstanding contributions to sedimentology and stratigraphy, awarded by SEPM (Society for Sedimentary Geology), and also recipient of the 2015 AAPG Grover E Murray Distinguished Educator Award.
N020: Carbonate Depositional Systems: Reservoir Sedimentology & Diagenesis
N143: Advanced Concepts in Carbonate Exploration and Reservoir Characterization (Northern Spain)
N245: Sedimentology and stratigraphy of Lacustrine Systems: Reservoir and Source Rocks (Utah & Colorado, USA)
N336: Carbonate Reservoir Description Based on Core and Well Data (Nottinghamshire, UK)
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