The resulting sequencestratigraphic framework is calibrated against more than 60 wells. Stratigraphic analysis and petroleum exploration, offshore. Nile delta petroleum company ltd providing worldclass. Marine and petroleum geology vol 112, february 2020. In the present study, pay zones petrophysics are studied using an assembly of well log data from 8 wells together with core plugs measurements. The availability of onshore and offshore threedimensional seismic surveys facilitated detailed seismic sequencestratigraphic interpretation of a large swath of the western nile delta evolution since the late oligocene. The investigation was primarily directed to the design of a land reclamation scheme and future development of the area.
Basic petroleum geology training course petroskills bg. Petroleum potential of an emerging giant gas province. While high school chemistry and physics might help in understanding a. Large accumulation 30 tcf of gas in a miocene carbonate reef reservoir. This resource has more than doubled in the last three years, largely from successful deep water exploration for pliocene slopechannel systems. The nile should have dried up entirely at this time, but it received additional water as a result of tectonic changes in the headwater region associated with formation of the east african rift valley. The existing exploration data are sparse, and any effort made on the stratistructural interpretation is challenging for exploratory drilling campaigns, even with meager well control. Most of the discoveries in this basin, such as the reservoirs of the upper miocene and the middleupper pliocene, have been enabled by the use of a direct hydrocarbon indicator dhi, based. Nile delta basin spe society of petroleum engineers.
Subsurface geology and petroleum system in the eastern offshore area, nile delta, egypt. To summarize briefly, gradual lifting and tilting of the earths crust along a zone that extends over 3000. The nile delta deep water is rapidly emerging as a major gas province. Siliciclastic deposits of the messinian nile canyon. Key challenges to realizing full potential in an emerging giant gas province.
Geological and structural evaluation on temsah gas field. Eight wells sapphire deep1, sapphire1, sapphire4, sapphiredd, saphiredh, scarab2, saffrondf and ndoa1 were interpreted using the composite well logs and seismic sections in order to our understanding of the stratigraphy of the offshore. Exploration in north africa and the middle east has traditionally focused on the prolific mesozoic and cenozoicsourced petroleum systems of the nile delta, the sirte basin, the pelagian shelf, and the arabian plate and on the palaeozoicsourced petroleum systems of the berkine, ghadames, illizi, ahnet and murzuq basins, the central arabian. Brazil new understanding of the petroleum systems of continental margins of the world. He graduated with a bsc in geology in 1980 and a phd in petrophysics in 2009, both from ain shams. The offshore nile delta basin is considered as one of the most promising province in. During the last two decades, the nile delta and the offshore mediterranean sea have been intensively investigated by the petroleum industry. Till now over 36 tcf of gas have been discovered since drilling began in 1966. Pdf the petroleum system from source to trap in the nile delta. Structural map of the area cenozoic pliocene generalized lithostratigraphy column of the nile delta area after egpc, 1994 geological history paleocene paleocene sediments were not appear in deep drilling in the nile delta areas that was mostly due to regional uplifts that. Geochemical analyses of mudstones from wells in the ne offshore nile delta suggest that the early miocene qantara formation has good potential.
Sedimentological architecture, shelfedge trajectories and. Stratigraphic development of southwestern panama as determined from integration of marine seismic data and onshore geology. Deltaic depositional facies result from interacting dynamics processes wave energy, tidal regime, currents, climate, etc. The term delta was first applied by the greek philosopher herodotus 490 b. Nile delta petroleum company limited was established in 20 by nile petroleum corporation limited south sudan and niger delta petroleum resources limited nigeria for the purposes of optimizing crude oil production in the light of production performance challenges currently observed in south sudan oil and gas sector. Petrophysical analysis and flow units characterization for. The nile delta basin extends over a large geographical area approximately 120000 km2 located in the northeastern portion of egypt, to the northwest of sinai peninsula. The discovery of zohr gas field in egypt august 2015 what do we know about the zohr field. Petroleum potential of an emerging giant gas province, nile delta and mediterranean sea off egypt. It is one of the worlds largest river deltasfrom alexandria in the west to port said in the east, it covers 240 km 150 mi of mediterranean coastline and is a rich agricultural region. The study area lies around the petroleum provinces of the egyptian offshore nile delta basin. Natural gas geochemistry in the offshore nile delta, egypt.
In 1978 golder associates carried out a major geotechnical investigation over an area of 1200 ha surrounding port said, egypt. A field, discoveries and hydrocarbon potentials a comprehensive overview, egyptian general petroleum, cairo, egypt, 1994. Analysis of petroleum system for exploration and risk. This basin is very complex, and it carries high economic value as it contains a very. Pdf 2d seismic surveys tgs 2001 survey 64 lines and acquisition report segy. Petrophysical analysis showed a good reservoir quality with average water. Quaternary clastics that are considered to be prospective f.
This research uses analyses from nile catchment rivers, wadis, dunes and bedrocks to constrain the geological history of ne africa and document influences on the composition of sediment reaching the nile delta. Field development typically requires detailed petrophysical analysis and well defined hydraulic flow units for comprehensive formation evaluation and reservoir characterization. View enhanced pdf access article on wiley online library html. Abstract the nile delta basin and its facing offshore mediterranean area represents hydrocarbonrich province that. The following discussion briefly summarizes the petroleum geology of the key areas represented by samples in this study. Investigation of the properties of recent nile delta. Diagenesis and petrophysical characteristics of the shallow. Our data show evolution of the north african crust, highlighting phases in the development of the arabiannubian shield and amalgamation of gondwana in neoproterozoic times. The onshore nile delta is one of the most promising areas for gas exploration and production in egypt. Africa middle east egypt nile delta nile delta basin west nile delta. For all practical purposes it closely resembles the freshman level course that a nonscience major at a university would take to satisfy the science requirement.
The authors thank rashid petroleum, bg group, and edison gas for permission to publish this article. Pdf subsurface geology and petroleum system in the eastern. The nile delta is a passive margin basin constituting the northeastern part of the slightly deformed unstable shelf of the african. Northwest europe and global perspectivesproceedings of the 6th petroleum geology conference, london, united kingdom. Nile delta eratosthenes seamount mediterranean sea sinai sub plate levant basin early mesozoic extension cenozoic compression. A number of multitcf gas fields have been discovered in the deep water of the nile delta in the last few years.
Niger delta province, nigeria, cameroon, and equatorial guinea, africa by michele l. The sedimentary sequence of the nile delta ranges in age from precambrian to recent. Proven reservoirs vary in age from oligocene through pleistocene. Shash, the geology of abu madi gas field, in proceedings of the 11th petroleum exploration and production conference. Processbased classification from 3d seismic attributes and implications for the prediction of deepwater sands. During the msc the nile created an enormous canyon, measured at a depth of more than 4000m below sea level in the offshore area of the delta. Keeping in view the issues and major challenges, the authors propose new methodologies, tools and new insights into. A detrital record of the nile river and its catchment. The nile delta basin contains a thick sequence of potential. Analysis of petroleum system for exploration and risk reduction in. The gulf of suez, nile delta, offshore mediterranean and greater western desert.
Depositional history of the western nile delta, egypt. Quarterly journal of engineering geology and hydrogeology. Geology department, faculty of sciences, ain shams university, 11566 abbassia, cairo, egypt. The presence of high quality reef reservoir was a surprise to. The geologic history of the nile delta created multiple source, reservoir and seal combinations. The wadi passes through gharb darfur near the northern border with chad and meets up with the nile. Key challenges to realizing full potential in an emerging. During the tortonian, a substantial delta complex had already been formed, which was severely eroded during the messinian moderate change of the base level. Williams4 1school of environment and development, the university of manchester, manchester m 9pl, uk 2institute of geography and earth sciences, university of wales, aberystwyth, aberystwyth sy23 3db, uk.
Subsurface geology and petroleum system in the eastern offshore. Lithological and petrophysical characteristics of the late. Presentation is oriented toward topics of interest to the petroleum industry. The nile delta and mediterranean deepwater trend along the northern coastline of egypt is. Pdf subsurface geology and petroleum system in the. The offshore nile delta basin is considered as one of the most promising hydrocarbon provinces in egypt, with an excellent potential for gas and condensate reserves following future exploration. Source rocks include jurassic coals and shales and the lower miocene.
Seismic stratigraphy and geomorphology of a tide or wave dominated shelfedge delta nw australia. An extension phase took place at north egypt onshore and offshore after deposition. The nile delta basin contains a thick sequence of neogene. Stratigraphic analysis and petroleum exploration, offshore, nile delta. Evolution, quaternary river environments and material fluxes jamie c.
The soils investigated were deep deltaic deposits of the river nile, laid down within the past 0 years. In 1999, he transferred to cairo and is currently assigned in milan, italy, where he continues to work on boreholeimage interpretation in the deepwater nile delta. The petroleum geology of egypt and history of exploration. Khaled and others published subsurface geology and petroleum system in the eastern offshore area, nile delta.
New insights on structure and stratigraphic interpretation. Nile delta mediterranean offshore, deep water, egypt. Dolson jc, boucher pj, siok j, heppard pd 2004 key challenges to realizing full potential in an emerging giant gas province. The usgs approach is to define petroleum systems and geologic assessment units and assess the poten tial for undiscovered oil and gas resources. Natural gas geochemistry in the offshore nile delta. Delta annil or simply ad delta is the delta formed in lower egypt where the nile river spreads out and drains into the mediterranean sea. Pdf stratigraphic analysis and petroleum exploration. Khaled and others published subsurface geology and petroleum system in the eastern offshore area, nile delta, egypt find, read and cite all the research you need on. The abrupt development of pore pressure in the southern part of the nile delta is believed to be due to changes in the volume of pore fluids or rock matrix as a consequence of either aquathermal. Nile floods recorded in deep mediterranean sediments. Egpc egyptian general petroleum cooperation, nile delta and north sinai. Offshore discoveries were made on the pliocene deep marine turbidities reservoirs of the rosetta and wddm fields. Assessment of undiscovered oil and gas resources of the nile delta basin province, eastern mediterranean.