We believe that it is very important to keep up to date with the latest developments in Geological Science, so our staff regularly attend conferences around the world. Here you can find some of the papers that we have presented at these conferences.

2017 - ADIPEC, Abu Dhabi International Petroleum Exhibition & Conference


Matthieu Deville de Periere, Alexander Foote and Meriem Bertouche - Link Between Microporous Limestones and Elastic Properties in Tight Carbonates. A Case Study from the Lower Arab Formation Upper Jurassic, Onshore United Arab Emirates


The Lower Arab D Member (Kimmeridgian) in onshore UAE is typically characterised by a thick succession of homogeneous mudstones with local cm-scale interbedded bivalve-rich floatstones, which are thought to have been deposited in a low-energy mid-ramp setting. This sedimentological unit is located at the base of a sour gas reservoir that includes the oolitic grainstones of the Upper Arab D Member. The pore system in these micritic deposits is dominated by matrix-hosted microporosity, along with open to partially cemented fractures, primary intraparticle macropores and rare biomoulds in the shell beds. Through analysis of elastic moduli calculated from standard density, and shear/compressional sonic wireline logs, the relationship between micritic fabric, porosity, permeability and geomechanical properties has been explored and used to predict micron-scale micritic fabric distribution in uncored wells from wireline logs only.

Read More

2017 - ADIPEC, Abu Dhabi International Petroleum Exhibition & Conference


Matthieu Deville de Periere, Alexander Foote and Boris Kostic - Origin of Complex Carbonate Pore Systems and Associated Reservoir Quality Variations: an Example From the Arab Formation Upper Jurassic, Onshore United Arab Emirates


This paper summarises the results of an intense reservoir appraisal programme that was conducted within a sour gas reservoir, onshore UAE, in order to determine the controls on porosity presence, distribution and effectiveness. This multiwell study was conducted over less than 5 years in order to define and predict porosity sweet-spots, and prepare for first gas, which was achieved in 2015. Focus is on the Arab D Member of the Arab Formation, the thickest and volumetrically most significant reservoir interval. It comprises an upward-cleaning succession of lime mudstone, peloidal and skeletal packstone and oolitic grainstone, culminating in a clay-rich, brecciated emergent surface. The entire succession shallows upwards from very low energy, basinal mudstones into cross-bedded oolitic grainstones that were deposited in a shoal complex that protected a gently agitated lagoon. Low skeletal diversity and the abundance of ooids are indicative of slightly elevated salinities; the abundance of anhydrite within the overalying Arab A/B/C and Hith Formation is indicative of basin dessication.

Read More

2017 - ADIPEC, Abu Dhabi International Petroleum Exhibition & Conference


Aurelie Bonin and Matthieu Deville de Periere - New sedimentological data within the Minagish Formation: Insights from undeveloped area, south-west Onshore Kuwait


As part of a multiwell study investigating the Middle and lowermost Upper Minagish Members cored in south-western Kuwait, this work focuses on understanding the occurrence of hydrocarbon stained deposits within the uppermost Middle Minagish and assesses their extent. The study aims to characterise the sedimentological make-up and analyse the field-scale depositional organisation to assist in the prediction of reservoir architecture. A facies analysis has been carried out and has resulted in the interpretation of the depositional environments. The key surfaces characterised in core along with openhole log data have helped in the interpretation of a sequence stratigraphic framework across both the reservoir and non-reservoir units.

Read More

2017 - ADIPEC, Abu Dhabi International Petroleum Exhibition & Conference


Aurelie Bonin, Matthieu Deville de Periere and Alexander Foote - Controls on Reservoir Quality and Reservoir Architecture of Early Cretaceous carbonates in an Abu Dhabi Onshore Field Lekhwair, Kharaib and Lower Shuaiba Formations


Reservoir quality of carbonate rocks is usually controlled by the interplay of both the primary depositional and secondary diagenetic parameters. The assessment of the respective impact of these controls together with the understanding of the field-scale sedimentological organisation and diagenetic trends assist in the reconstruction of reservoir architecture and help production and appraisal programs. This work focuses on three formations recorded in the onshore Abu Dhabi area with the final aim of understanding their field-scale architecture through the study of six wells. Sediments reflect deposition in clay-prone and cleaner inner ramp to distal mid-ramp, where biotic assemblage is either dominated by Lithocodium/Bacinella (i.e. within lower Shuaiba and lowermost Lekhwair), rudists or peloids (i.e. within Kharaib).

Read More

2017 - Kuwait Oil and Gas Show and Conference and ADIPEC, Abu Dhabi International Petroleum Exhibition & Conference


Thomas Haines, Meriem Bertouche, Aurelie Bonin, Michael Fuchs and Matthieu Deville de Periere - Predictability of the Sedimentological Make-up and Reservoir Quality in the Mauddud Formation Using FMI Logs - A Case Study from a North Kuwait Field


The Late Albian Mauddud Formation of North Kuwait is composed of inner ramp carbonates and deltaic clastics. It hosts prolific hydrocarbon reserves in Kuwait and across the Arabian Gulf region where the reservoirs are typically the carbonate deposits. Accurately predicting the reservoir properties in the Mauddud Formation is challenging due to the non-unique wireline signatures, which result from the inherent diagenetic heterogeneity and complexity. 385ft of continuous FMI image log data, collected from a single well covering the entire formation in a north Kuwait field, has been analysed to assess its potential to characterise and extrapolate the sedimentological, diagenetic and reservoir characteristics into uncored wells. Nine distinct image facies have been defined, each of which display a specific image fabric. The image facies have been calibrated with core, thin section petrographic observations and core plug data to aid reservoir quality predictability.

Read More

2017 - Kuwait Oil and Gas Show and Conference


Boris Kostic and Nicolas Foote - The value of integrated borehole image analysis to refine geological models: an example from the Greater Burgan Field, Kuwait


Resistivity image logs are high-resolution tools that can help to unravel the depositional and structural organisation in a wellbore. They provide a particularly powerful dataset when calibrated against core, maximising their benefit for reservoir characterisation. This paper shows examples how very detailed image assessment from selected wells in the Greater Burgan Field has helped to constrain the stratigraphic model and depositional interpretations of the Cretaceous Burgan and Wara reservoirs.

Read More

2017 - AAPG Annual Convention and Exhibition


Matthieu Deville de Periere, Alexander Foote and Philip Hayward - Characterisation and Modelling of Fine-Grained Limestones: Lessons From Four Decades of Progress in Hydrocarbon Reservoirs


The aim of this work is to present recent advances in the characterisation and prediction of microporous and nanoporous carbonate deposits. Clearly defined and readily applicable petrographical classifications provide the basis for a good understanding of how the sediments evolved through time and space. In a particular this paper presents a refined understanding of the sedimentological formation of these facies, which, in turn is critical for constraining the variations in reservoir properties and their distribution within microporous reservoirs.

Read More

2017 AAPG Annual Convention and Exhibition


Adrian Neal and Mateusz Cyprych - Detailed Reservoir Characterization by Integrating Core, 3-D CT Scan and Borehole Imaging Datasets


This study presents detailed sedimentological and structural interpretations from a deepwater turbidite reservoir, generated by integrating 3D CT scans, BHI and core-based observations. Firstly, the 3D CT scans allow more detailed recognition of sedimentary facies; commonly sandstones that seem structureless in the slabbed core are shown to be space-laminated or dewatered in the CT scans. Secondly, by using bedding features common to both the BHI and core data sets, it is possible to orient the 3D CT scans and demonstrate that interpreted fractures in the BHI correspond to deformation band sets in the core.

Read More

2016 - ADIPEC, Abu Dhabi International Petroleum Exhibition and Conference


Aurelie Bonin - Sedimentological characterisation and sequence stratigraphy of the lowermost Lekhwair deposits of the southern Tethys (Early Cretaceous, Onshore Abu Dhabi)


This work consists of the establishment of the sedimentological framework of the poorly known lowermost Lekhwair Formation of an onshore Abu Dhabi area based on the detailed sedimentological descriptions from four cored wells and the analyses of petrographical samples

Read More

2016 - ADIPEC, Abu Dhabi International Petroleum Exhibition and Conference


Matthieu Deville de Periere - Sedimentology and Sequence Stratigraphy controls on Reservoir qualities distribution in high heterogeneous carbonate rocks; case study; in a Giant Offshore Oil Field, Abu Dhabi


This study aims to produce a robust understanding of rock quality distribution over the Thamama V reservoir, and reduce the uncertainties on facies modelling in geological and simulation models within the field.

Read More

2016 - Geo2016, the 12th Middle East Geosciences Conference & Exhibition


Michael Fuchs - Reservoir Heterogeneity of the Mishrif Formation, Rumaila Field, Southern Iraq


This paper briefly illustrates how results from a series of sedimentological, diagenesis, chemo/ biostratigraphic studies and an interpretation from a new 3D seismic volume have been used to construct a new sequence stratigraphic framework and highlight lateral heterogeneities.

Read More

2016 - William Smith Meeting 2016 - Glaciated Margins: The Sedimentary & Geophysical Archive


Rebecca Smith - New insights into the Al Khlata to Lower Gharif succession of North Oman


This paper examines the character of the Al Khlata deposits and the nature to the transition to the Lower Gharif across North Oman through the interpretation and correlation of core, borehole image and wireline log data.

Read More

2015 - AAPG Siliclastic Reservoirs of the Middle East GTW


Boris Kostic - Reservoir architecture of the Cretaceous Upper Burgan deltaic deposits in North Kuwait


This poster presents a an improved geological understanding of the reservoir architecture and connectivity of the Upper Burgan Formation within a robust stratigraphic layering framework, which is key to an optimised development of this important reservoir.

Read More

2015 - ADIPEC, Abu Dhabi International Exhibition and Conference


Matthieu Deville de Periere - Palaeogeographic Reconstruction of a Tide-Dominated Oolite Shoal Complex in the Lower Arab Formation, Onshore UAE


This study uses integrated core descriptions and borehole image logs to better understand reservoir architecture and produce a more refined model for the palaeogeographic evolution of the shoal complex

Read More

2015 - Third EAGE Workshop on Iraq: Unlocking the Potential of the Giant Oil Fields of Southern Iraq


Michael Fuchs - Sequence Stratigraphy and Reservoir Heterogeneity Related to the Mishrif Formation, Rumaila Field, Southern Iraq


This paper presents the importance of a of Sequence Stratigraphy and Reservoir Heterogeneity within the Mishrif Formation in the Rumaila field, Iraq.

Read More

2014 - AAPG International Conference and Exhibition


Matthieu Deville de Periere - New Insights on the Mauddud Formation (Upper Albian): Characterisation of Sedimentology, Diagenesis and Reservoir Quality


This paper integrates the sedimentological, petrographical and reservoir quality results from a multiwell study on the characterisation of the Mauddud Fm. (Upper Albian) in an onshore field in North Kuwait.

Read More

2014 - AAPG International Conference and Exhibition


Matthieu Deville de Periere, Kate Garrick, Meriem Bertouche and Andrea James - Field-Scale Reservoir Quality Variations and Predictability in Uncored Intervals within the Arab Formation, offshore Abu Dhabi (United Arab Emirates)


This field-scale study presents the results of integrated sedimentology and reservoir quality assessment of the Arab Formation Members A to D, offshore Abu Dhabi. The reservoir quality evaluation based on conventional core analyses data, thin-sections and logs highlighted that reservoir potential was initially closely related to facies variations. The distribution of reservoir quality within the limits of the stratigraphic cycles is investigated to understand the impact of the sedimentological and diagenetic influences on reservoir behaviour and distribution.

Read More

2014 - AAPG International Conference and Exhibition


Kate Garrick, Neil Bishop, Jon Gant, Meriem Bertouche, Andrea James and Matthieu Deville de Periere - Enhancing the Sedimentological Understanding within the Arab Formation (Upper Jurassic), Abu Dhabi - Constraining the Future Reservoir Model Build


Correlation and prediction of facies and reservoir quality variability/heterogeneity within shallow carbonate ramp deposits of the Arab Formation in an Abu Dhabi offshore field has previously proved challenging. This study, focuses on the results of an integrated sedimentology and reservoir quality assessment of the Arab Formation. Specific focus has been placed on detailing depositional architecture, within which variations in reservoir properties have been identified.

Read More

2014 - SPE/EAGE European Unconventional Conference and Exhibition


Boris Kostic - An Integrated Approach Towards a Holistic Sedimentological and Pore-Scale Characterisation of Fine-Grained (Shale) Unconventional Reservoirs


This paper illustrates an example of unconventional reservoir characterisation of a fine-grained formation from the North Sea where the specific aims were to establish the depositional framework for recognising sedimentary environments, recommend sample locations to target specific queries within the sedimentological context for petrographical and geochemical analyses, to investigate what porosity types are present and to assess 'brittleness' of the rocks.

Read More

2013 - 30th IAS Meeting of Sedimentology


Meriem Bertouche and Mike Ashton - Pore-scale fabric as a tool to distinguish in situ from remobilised mudrocks in deepwater deposits


Traditional core logging cannot always distinguish in situ from remobilised mudrocks due to the absence of diagnostic criteria, particularly from single core. Image logs generally can help to differentiate the origin of mudrocks, but where the scale of deformation/slumping is below tool resolution, it might prove difficult to confidently comment on the nature of mudrock origin.

Read More

2013 - SPE Advanced Carbonate Reservoir Characterisation Workshop


Matthieu Deville de Periere - Quantitative Characterisation of Microporous Micritic Matrix. Examples from Cretaceous of the Middle East


For this study, samples were collected from three oil-bearing reservoir within two Cretaceous Formations (the Berriasian/Valanginian Habshan Fm. and the Cenomanian/Mid-Turonian Mishrif Fm.) to examine the vertical and lateral discrepancies in their petrophysical parameters. Scanning Electron Microscopy (SEM) was used to investigate two potential controls of reservoir properties: (1) micrite particle morphology (shape and inter-crystal contacts); and (2) micrite crystallometry, defined as the median size of micrite particles measured on SEM photomicrographs. These data are compared with three petrophysical parameters (porosity, permeability and pore threshold radius distribution) and the results reveal that micrite matrixes can be subdivided into three petrophysical classes, each with its own distinctive crystallometry, morphology and reservoir properties.

Read More

2013 - SPE Advanced Carbonate Reservoir Characterisation Workshop


Kate Garrick, Matthieu Deville de Periere, Meriem Bertouche and Andrea James - Reservoir Characterisation of the Arab Formation (Upper Jurassic), offshore Abu Dhabi (United Arab Emirates)


Correlation and prediction of reservoir quality variability/heterogeneity within shallow carbonate ramp deposits of the Arab Formation has previously proved challenging. This study presents the results of an integrated reservoir characterisation (including sedimentology, reservoir quality assessment and openhole logs response) of the Arab Formation Members X1 to X4 in a major oil-bearing reservoir located in the offshore Abu Dhabi.

Read More

2013 - EAGE 2nd Iraq Workshop


Boris Kostic - An integrated description of the stratigraphy and depositional environment of the “Main Pay” member of the Zubair Formation, Rumaila, Iraq


This study presents a hierarchical integrated sedimentological and palynological description of the Zubair Formation, including the early Cretaceous stratigraphic, palaeogeographic and palaeoclimatic context; depositional processes, genetic elements and delta advance-retreat cycles and builds to the development of a depositional model for the Formation.

Read More

2013 - AAPG Annual Convention and Exhibition


Boris Kostic - Increase Productive Life and Add to In-Place Oil in Mature Reservoirs with Integrated Studies: Zubair Reservoir in Kuwait


The Zubair reservoir is an Albian siliciclastic reservoir on production for the last six decades. Cumulative production indicates a higher oil recovery factor than expected. An integrated study involving sequence stratigraphy, sedimentology, biostratigraphy, petrophysics and modeling techniques resulted in a better understanding of rock fabric, mineralogical composition, depositional settings and their evolution leading to discovery of more in-place oil and a rejuvenated development plan.

Read More

2012 - EAGE Fourth Arabian Plate Geology Workshop: Late Jurassic/Early Cretaceous Evaporite-Carbonate-Siliclastic Systems of the Arabian Plate


Kate Garrick - Integrated Core and Log-based Approach to Enhancing the Understanding of Reservoir Distribution within the Arab Formation, Abu Dhabi: Constraining the Future Reservoir Model Build


Correlation and prediction of reservoir quality variability/heterogeneity within shallow carbonate ramp deposits of the Arab Formation in an Abu Dhabi offshore field has previously proved challenging. This study, commissioned by ADMA-OPCO, presents the results of integrated sedimentology and reservoir quality assessment of the A to D members of the Arab Formation.

Read More

2010 - AAPG International Convention and Exhibition


Boris Kostic - Integrated Reservoir Characterization in Pursuit of a Heavy Oil Giant in the Arctic


Alaska’s North Slope is a world-class petroleum basin with some of the largest producing fields in North America. What is not widely known is the vast resource of heavy oil in shallow sands overlying these light oil reservoirs. Development of heavy oil in the Arctic represents a significant departure from conventional light oil developments on the North Slope as well as established heavy oil developments elsewhere in the world. To progress this opportunity, BP has initiated an appraisal program focused on the portion of the heavy oil resource within the Lower Ugnu (M-sand) reservoirs.

Read More

2006 - AAPG Annual Conference and Exhibition


Andrea James - A sedimentological and diagenetic description of the Carboniferous section in RKF Field, Berkine Basin, Algeria


Sedimentological, diagenetic and palynological description of the Carboniferous section (RKF Sands) was carried out on one RKF well. This study allows an improved understanding of the depositional environments and the architecture of the reservoir, along with its quality (diagenetic effects) and age. These data will be important in 3D modelling.

Read More

2006 - American Association of Petroleum Geologists Annual Meeting


Boris Kostic - Depositional Environments, Architecture and Diagenesis of Fahud Field, Oman


Fahud Field is a giant fractured carbonate reservoir in the Sultanate of Oman. It is contained in the Natih Formation, a 450m thick section of Albian to Turonian high porosity, low permeability shallow water carbonates. Deposition occurred over a period of three regionally correlatable third order cycles in environments ranging from source rocks deposited in intrashelf basins, mud-dominated wacke/packstones of slope environments, coarse rudist sand shoals, tidal flats to back-shoal lagoons. On a large scale reservoir architecture is layer-cake and well constrained by some 400 wells. However, a close look at seismic, outcrop analogues and performance indicated the likelihood of significant internal heterogeneity.

Read More

2000 - EAGE 62nd Conference and Technical Exhibition


Mike Ashton - Fault and fracture prediction from coherence data analysis, a case study - The Magnus Field, UKCS


This paper presents a new approach to fault and fracture interpretation, FaultMagic®, which is based on the analysis of coherence and the integration of borehole data. It allows the interpreter to produce detailed and highly accurate fault and fracture maps using a data-driven approach. Interpreter bias is removed, and the speed and efficiency of mapping greatly increased.

Read More