- Home
- Conferences
- Conference Proceedings
- Conferences
2nd EAGE North African/Mediterranean Petroleum & Geosciences Conference & Exhibition
- Conference date: 10 Apr 2005 - 13 Apr 2005
- Location: Algiers, Algeria
- ISBN: 978-90-73781-38-2
- Published: 10 April 2005
41 - 60 of 100 results
-
-
Advances in the Structural Model of the Reggane-Ahnet Region of Algeria
Authors A. Chambers, I. Polonio, M. Baene, R. Ferrando and E. FigariB08 ADVANCES IN THE STRUCTURAL MODEL OF THE REGGANE-AHNET REGION OF ALGERIA Abstract : 1 A. CHAMBERS I. POLONIO M. BAENA R. FERRANDO and E. FIGARI Repsol-YPF Exploración SA Paseo de la Castellana 280 28046 Madrid Spain A number of hydrocarbon accumulations have been discovered during the last 40 years the principal reservoirs being the Ordovician Units III-IV and Lower Devonian. These include the Reggane Tiouliline and Azrafil discoveries in the eastern Reggane basin and the M’Sari Tigfermas and Tit discoveries in the western Ahnet basin. Repsol-YPF and partners have been actively exploring in this region since 2000 with the
-
-
-
The Petroleum Interest of the Algerian Offshore Domain
Authors N. Khennaf, B. Addoum, A. Ghaffar, M.S. Benabdelmoumene and F. TaharbouchetB09 THE PETROLEUM INTEREST OF THE ALGERIAN OFFSHORE DOMAIN 1 N. KHENNAF B. ADDOUM A. GHAFFAR M.S. BENABDELMOUMENE and F. TAHARBOUCHET Sonatrach Activite Amont Division Exploration Avenue Du 1er Novembre Iap Bt. C Bp.68 M - Boumerdes 35000 Algerie ABSTRACT The Algerian offshore domain presents a total area of 93 500.5 Sq km corresponding to the south boundary of the Alboran basin to the west and the Algero-provençal basin to the east. The coast extends from east to west over 1200 Kms. More than 20 000 Kms of 2D seismic data acquired from 68 to 77 and about 9 000
-
-
-
Gas Exploration in Mediterranean Sea, Egypt
By M.S. FahimB10 GAS EXPLORATION IN MEDITERRANEAN SEA EGYPT SUMMARY 1 The recent success of the gas exploration in the Mediterranean province is the result of the aggressive exploration efforts since 1960s. Through time and as indicated by statistical analysis exploration followed different approaches and concepts. In early days the targets in the area were Cretaceous reservoirs. However drilling results proved that Mesozoic targets are deeper than expected and also indicated the high potentiality of Miocene reservoirs. During 1990s as a results of introducing GAS CLAUSE in the Petroleum Exploration Agreements and also due to methodological improvements many Miocene & Pliocene gas
-
-
-
Exploration Evaluation of a Block in the Mediterranean Sea, Offshore Western Algeria
Authors J.E. Iliffe, R. Humphreys, B.W. Jones, H. Nada and J.K. WilliamsB11 EXPLORATION EVALUATION OF A BLOCK IN THE MEDITERRANEAN SEA OFFSHORE WESTERN ALGERIA 1 J.E. ILIFFE R. HUMPHREYS B.W. JONES H. NADA and J.K. WILLIAMS The offshore margin of Western Algeria was evaluated for its hydrocarbon potential as part of a licence round. Offshore data consisted of three wells archaic seismic and DSDP drilling data. Additional data from the onshore Cheliff Basin was also used. A regional “bottoms-up” approach to the evaluation was employed with the available data starting with the fundamental tectonic setting and ages of the key events. Regional GDE’s were developed and source rock reservoir and seal
-
-
-
Wave Equation Depth Migration in North Africa Deep Waters
Authors S. Grion, R. Leggott and R. MorganB12 WAVE EQUATION DEPTH MIGRATION IN NORTH AFRICA DEEP WATERS Summary 1 This paper focuses on recent advances in wave equation migration algorithms and their implications for deep water seismic exploration offshore Egypt. The analysis of 2D Kirchhoff pre-stack depth migrated (PSDM) data reveals complex structures that are likely to benefit from wave equation migration. Ray tracing and impulse responses are used to assess these benefits. Introduction Seismic imaging methods can be divided into two broad categories. Kirchhoff methods rely on ray tracing to estimate traveltimes through a velocity model. These traveltimes are then used to reposition data to its
-
-
-
The in Salah CO2 Storage Project – Future Challenges
Authors F.A. Riddiford and A. TourquiB13 THE IN SALAH CO2 STORAGE PROJECT – FUTURE CHALLENGES Technical Theme: 11 - Environment and HSE Management 06 - North African case studies Abstract The multi-field In Salah Gas(ISG) project started production on schedule mid-2004. As part of the development ISG also implemented a large scale CO2 capture and storage project with the produced gas stream being stripped of its CO2 content before export and the stripped CO2 stream injected into 3 horizontal injection wells. Placement of the CO2 is into the aquifer leg of the Krechba field where ~50 mmscf/d of CO2 is being re-injected daily. 1 F.A.
-
-
-
Which Environmental Strategy for the Exploraion Activity Within Sonatrach?
Authors A. Fodil Cherif and A.L. BenmeberekB14 WHICH ENVIRONMENTAL STRATEGY FOR THE EXPLORAION ACTIVITY WITHIN SONATRACH? 1 ABSTRACT The pressures on the Oil and Gas Companies for the environmental respect as wel as local than global level are more and more strong. The legal and economic consequences of an industrial accidents and pollutants releases are more stern. In answer to this situation these companies developed different strategies aiming to control their pollutant releases to reformulate their processes procedures and products; in other words to review their way to make things. Like an other Oil Companies SONATRACH gives a great importance for the environment management that constitutes
-
-
-
Hazards Caused by a Drilling Fluid in Case of Loss Circulation; what is the Solution?
By M. KadaB15 HAZARDS CAUSED BY A DRILLING FLUIDS IN CASE OF LOSS CIRCULATION WHAT IS THE SOLUTION? 1 Abstract In this 21st century the sustainable development takes dimension in witch every development strategy must take in considiration different environment aspects expected to compromise the well being of futur generations. The pollution generated by the oil and gas industries like drilling operations can have a serious and irreversible consequences on the environment specially those linked to the drilling fluids uses. The drilling operation site is known to generate a ponctuel pollution problem however this one can be propagated outside the limits of
-
-
-
Exceptional Horizontal Well Performance Delivered Through Multi-Disciplinary Teamwork
Authors M. Taylor, L. Foster, A. Aidoo, J. Castle-Smith and J. MezdourB16 EXCEPTIONAL HORIZONTAL WELL PERFORMANCE DELIVERED THROUGH MULTI- DISCIPLINARY TEAMWORK ABSTRACT 1 FOSTER L. AIDOO A. CASTLE-SMITH J. MEZDOUR J. 2 nd North African/Mediterranean Petroleum & Geosciences Conference & Exhibition Algiers 10 – 13 April 2005 TAYLOR M. In Salah Gas BP513 Hassi-Messaoud Algeria. Krechba is one of seven fields in the In Salah Gas Development in District 3 of Algeria. Initial planning called for up to 25 vertical wells to develop the thin Carboniferous reservoir. To reduce development costs feasibility studies were performed on the option of drilling 6-8 horizontal wells which included 2-3 CO2 injection wells. This option
-
-
-
Egyptian Deepwater Development, a Case Study
More LessB17 EGYPTIAN DEEPWATER DEVELOPMENT A CASE STUDY Summary The Burullus Gas Company a subsidiary of the Rashid Petroleum Company (Rashpetco) operates the West Delta Deep Marine Concession. (WDDM) on behalf of partners: Egyptian Government Petroleum Cooperation (EGPC) BG Group and Petronas. This paper describes the first deepwater offshore completion operations conducted in Egypt as part of the Scarab/Saffron development and the lesson learned for the future deepwater development in Egypt. The two fields are located in water depths ranging from 400 to 650m and are situated some 90km offshore the Nile Delta. 1 The development consists of two phase drilling
-
-
-
Contribution of Analogue Modelling for the Understanding of the Saharan Atlas Structure
By T. DjebbarB18 CONTRIBUTION OF ANALOGUE MODELING FOR THE UNDERSTANDING OF THE SAHARAN ATLAS STRUCTURE Abstract 1 The Saharan Atlas (Algeria) is an intracratonic mountain belt which developed at the southern margin of Tethys. It is 650 km long and varies in width from 90 to 140 km. Topographic elevations reach 2 000 m. It forms part of the Atlas orogenic system which occurs in North Africa from Morocco to Tunisia. During the Mesozoic up to 10 000 m of mixed continental and marine sediments were deposited unconformably above the Palaeozoic basement. This basement contains NE-SW and NW-SE Variscan fabrics and older
-
-
-
Lower Devonian Combined Traps – Ahnet Basin – Western Sahara
Authors S. Boukhallat and A. RahmaniB19 LOWER DEVONIAN COMBINED TRAPS – AHNET BASIN – WESTERN SAHARA The Ahnet basin located in the western part of the Saharan Platform (figure1) exhibits several features witnessing very important and complex structural history . Actually various trends of large scale folds can be seen in outcrops and subsurface. This makes the area very exciting for hydrocarbon exploration. Indeed the first well that penetrates the stratigraphic column of the basin was realized 1950’s. Since exploration was focused on Ahnet basin several gas accumulations were discovered in various reservoir formations of several ages like the Ordovician Lower Devonian and Tournaisian –Strunian
-
-
-
Source Rocks of the Southeastern Constantine Sedimentary Basin (Eastern Saharan Atlas, Algeria)
By E.M. BelhadjB20 Source Rocks of the Southeastern Constantine sedimentary basin (Eastern Saharan Atlas Algeria) Elhadi Mustapha BELHADJ Sonatrach-CRD ;1 Avenue du 1 er novembre Boumerdes 35000 Algeria E-mail : [email protected] Tel : 024 81 56 01 Fax: 024 81 11 20 Summary Various organic matter rich strata within the argillaceous carbonate series of the Cretaceous-Tertiary basin of the southeastern Constantine are described and investigated. These strata stratigraphically related to the Cenomanian-Turonian boundary zone and the Upper Albian sections offer the most hydrocarbon potential characteristics and are regarded as having generated the oil from Djebel Onk Ras Toumb and Guerguit El-Kihal fields.The
-
-
-
The Hydrocarbon Source Potential of the Palaeozoic Rock of theGhadames Basin, NW Libya
Authors M.S. Hrouda, R.V. Tyson and P. FarrimondB21 THE HYDROCARBON SOURCE POTENTIAL OF THE PALAEOZOIC ROCK OF THE GHADAMES BASIN NW LIBYA Lower Silurian and Upper Devonian organic-rich “hot-shales” are the source of almost all Palaeozoic oils in North Africa and the Middle East. They are also developed in the Ghadames Basin and better understanding of their organic facies character and maturity is considered crucial for the future oil exploration strategy. To date the geochemical and 1 palynological data relating to hydrocarbon source potential are rather few and scattered just a limited number of publications and internal reports. The geochemical data (TOC pyrolysis and transmitted light microscopy
-
-
-
Dating a Reservoir Filling – A Case History from the Hassi Messaoud Field, Algeria
More LessEAGE 2 nd North African/ Mediterranean Petroleum & Geosciences Conference and Exhibition Algiers Algeria 10 - 13 April 2005 B22 Dating a reservoir filling : a case history from the Hassi Messaoud field Algeria Summary Djamel Boutoutaou Sonatrach Boumerdès-Algeria E-mail: [email protected] The characteristics of oils in the subsurface as well as the hydrocarbon filling history of the Hassi Messaoud Field were studied using geological organic geochemical fluid inclusion and PVT data. Geochemical signatures of present and paleo-petroleum distributions in combination with microthermometry of fluid inclusions are integrated in this study with the burial history modelling in order to understand the
-
-
-
Geochemistry of Organic Matter in the Upper Triassic Facies, Central Tunisia
Authors A. Arfaoui and M. MontacerB23 GEOCHEMISTRY OF ORGANIC MATTER IN THE UPPER TRIASSIC FACIES CENTRAL TUNISIA Unité de recherche « Géoressources Environnements naturels et Changements globaux » GEOGLOB code : 03/UR/10-02 1 Summary : Outcrop samples collected from Rheouis carbonates and shales in central Tunisia were analysed in order to evaluate their geochemical patterns. On the basis of biomarker maturity parameters (i.e. Ts/Tm 22S/(22S + 22R) of the C31 αβ-hopanes ratios 20S/(20R + 20S) and ββ/(ββ + αα) of C29 steranes…) this study suggest that the Carnian organic matter has already reached the stage of oil-generative window. This province could be a promising area
-
-
-
Berkine Basin Oils, Algeria – Geochemical Correlation by GC and Spectroscopic FTIR and SUVF
Authors A. Permanyer, J. Navarro, O. Abbas, C. Rébufa and J. KisterB24 BERKINE BASIN OILS ALGERIA – GEOCHEMICAL CORRELATION BY GC AND SPECTROSCOPIC FTIR AND SUVF 1 A. PERMANYER 1 J.NAVARRO 2 O. ABBAS 3 C. RÉBUFA 3 and J. KISTER 3 1 Dt. Geoquímica Petrologia i Prospecció Geològica Universitat de Barcelona . Barcelona Spain 2 Cepsa E.P. S.A. c/ Ribera del Loira 50. 28042-Madrid Spain 3 Université d’Aix-Marseille III CNRS UMR 6171 Marseille France Abstract FTIR and SUVF helped to define complementary parameters to show differences between oils of the Berkine Basin in Algeria. These differences are probably linked to different oil source rocks oil evolution and reservoir compartmentalization. Key
-
-
-
Palaeogeothermal Study of Idjeran M'Zab and Amguid-El Biod Hassi Messaoud Ridge (Central Sahara, Algeria) – Relationship with Deep Tectonics
More LessB25 PALAEOGEOTHERMAL STUDY OF IDJERAN M’ZAB AND AMGUID-EL BIOD HASSI MESSAOUD RIDGE (CENTRAL SAHARA ALGERIA) – RELATIONSHIP WITH DEEP TECTONICS The Algerian central Sahara consists of two ridges which extend in a submeridian 1 direction from the Hoggar to the Sahara Atlas. Gassi touil and Rhourde Nouss areas are located on the high Amguid el biod Hassi messaoud ridge in the triassic basin horsts. The tectonic study revealed two important tectonic phases (Hercynian and autrichian) that affected differently these two regions. The autrichian phase is noticeable in the Gassi Touil region especially as it is unusual in the saharian level
-
-
-
A Multi-Azimuth VSP Experiment for Fracture Orientation Detection, HMD Field Algeria
Authors F. Chegrouche and F. BabaiaB26 A MULTI-AZIMUTH VSP EXPERIMENT FOR FRACTURE ORIENTATION DETECTION HMD FIELD ALGERIA Abstract Natural micro-fractures are very important in the control of production in the hydrocarbon reservoirs. The presence of the vertical fractures in the rock mass causes the split of the incident shear wave into two approximately orthogonal components with different velocities. Splitting shear wave analysis permits the estimation of fracture orientation. 1 In the offset VSP experiment converted SV waves are generated with varying strengths at particularly all depths. Consequently the converted Sv waveforms partially overlap with direct P waveforms makes the separate event analysis difficult and inaccurate.
-
-
-
Reducing Uncertainties At An Early Stage – The Key to Minimize Development Risks in the Al-Jurf Field
More LessB27 REDUCING UNCERTAINTIES AT AN EARLY STAGE – THE KEY TO MINIMIZE DEVELOPMENT RISKS IN THE AL-JURF FIELD 1 Summary 1 The Al Jurf oil field located in the Sabratah basin offshore Libya was put on stream in 2003 after having drilled only three exploration and appraisal wells since discovery date thirty years earlier. In order to fine tune the second phase of the development but also to identify potential upsides it was necessary to tackle at an early stage the substantial subsurface uncertainties of the stacked carbonate reservoirs El Gueria and Chouabine. An appropriate drilling sequence combined with a
-