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Gulf of Hammamet
Abstract Al Baraka Oilfield Services SAOC has supported Oman's leading oil and gas exploration and production company in the Sultanate, in servicing wells in the Oman Block 6 concession area using Conventional Workover Rigs since 2013. Workover includes primarily changing completions and casings, fishing, cementing, abandonment, milling, perforations, changing pumps/motors, upsizing wellhead, and other integrity operations. The challenge given by the Client to the Contractor was to safely and successfully commission the first two new electric-powered 550 HP Hoists. A Super Local Community Contractor (SLCC) has become the first oil and gas company in Oman to introduce ground-breaking electric-powered Workover Rigs. It is proud to declare itself as the first company in Oman to work intensively and proactively to design these modularized electric-powered workover units, able to optimize the move time between the wells, thereby creating faster turnarounds and reducing costs. This allowed the Client to bring early oil to the tanks, minimizing deferment, achieving ample savings in operations, and accelerating cash flow. Conventional workover rigs are primarily hydraulic, not electric. Compared with the Conventional units, the new Electrical hoists are equipped with the latest technology and ergonomics that ensure safe operations and faster movement between locations which reflects in the increased number of wells attended so far in 2022. Other advantages are viz. modular, less space occupation; improved control features, ability to control both torques and speed very accurately; fully automated pipe-handling systems; less maintenance expenditure and lower capital/operating investment The Electrical units are designed to enhance safety and overall performance efficiency defined by the specific application, the location of the well, and the type of work to be performed. These rigs have a more efficient power source, as electric motors convert more of the energy input into mechanical power compared to diesel engines. This is also reflected in the reduction in Non-Productive Time. Two critical features were the basis of the design of the Workover Unit, i.e. potential to take lead in energy efficiency/decarbonization and minimizing "lifting and drops" hazards by introducing automated handling mechanisms and reducing manual/human intervention. In phase II, these units will be hooked up to the Overhead Electricity Transmission Grid instead of running from diesel generators. Oman's power grid is fed by electricity produced from clean natural gas-fired turbines which emit less pollution; therefore there will be an overall saving in energy consumption and reducing pollution from burning fossil fuels, with the aspiration to reduce global carbon emissions to Net Zero by 2050, as part of the decarbonization roadmap laid down by the Ministry of Energy & Minerals in Oman, in line with the Paris Agreement's objectives of limiting global warming to 1.5°C compared to pre-industrial levels. The electric-powered WO rig concept has been so successful that the Client has incorporated these types of rigs in future new contracts as against conventional hydraulic rigs – the client has changed the contract specification in line with these Hoists. Other service providers are planning to switch to Electric WO rigs as a new trend in Oman as these units have enhanced technical features.
africa government, asia government, climate change, contractor, downhole intervention, drilling operation, egypt government, electric drilling rig, electric workover rig, emission, engine, greenhouse ga emission, hoist, international association, International Energy Agency, oman government, operation, platform, production enhancement, rig, social responsibility, sustainability, sustainable development, technology, transition, tunisia government, Upstream Oil & Gas, Well Intervention, workover rig
Country:
- Asia > Middle East > Oman (1.00)
- Africa > Middle East > Tunisia > Mediterranean Sea > Gulf of Hammamet (0.25)
- Africa > Middle East > Egypt > South Central Desert (0.25)
SPE Disciplines:
Geophysical Modeling and Its Contribution on the Reservoir Characterization of Al Baraka in El Gallaba Plain, South Egypt
Ebraheem, Mohamed O. (Geology Department, Faculty of Science, New Valley University (Corresponding author)) | Ibrahim, Hamza A. (Geology Department, Faculty of Science, Assiut University (Corresponding Author)) | Ewida, Hatem F. (North Sinai Petroleum Company (NOSPCO)) | Senosy, Ahmed H. (Geology Department, Faculty of Science, New Valley University)
Summary The early Cretaceous formations in recent years are considered significant potential hydrocarbon-bearing rocks in many rift basins such as Komombo, south Egypt. Therefore, this study is focused on the critical analysis and interpretation of well logging together with seismic reflection data on the Al Baraka petroliferous reservoir in the Komombo subbasin. The interpretation of these data was used to construct the first 3D geophysical models in this area which were subsequently interpreted in terms of their potential to be hydrocarbon-bearing or not. The 3D petrophysical models were deduced to illustrate the spatial distribution and propagation of the petrophysical properties (laterally and vertically) within the reservoir. Additionally, 3D seismic models were prepared to get a comprehensive, in-depth picture of how the productive hydrocarbon reservoir zones are structurally controlled in different depths. So, these models are crucial for explaining reservoir characteristics and providing supported geological reservoir models for precise reservoir performance prediction. This study aims to differentiate and determine hydrocarbon potential zones in terms of the petroleum system. The results of these progressive analyses showed that only two zones (C and D) in the Six Hills Formation are considered the most productive zones because they have a large thickness of sand bodies, low-water saturation values, high porosity, and high permeability. These zones are located in the northeastern and central parts of the studied area, which represent the depocenter of the subbasin. This evidence supported and confirmed the presence of petroleum accumulations in certain zones within the Six Hills Formation. Therefore, this work can give and encourage experts with adequate knowledge to understand the development of the rift basins in Komombo and other basins in middle and south Egypt.
abu balla formation, africa government, baraka, egypt government, europe government, facies, interpretation, komombo subbasin, Modeling & Simulation, permeability, porosity, Reservoir Characterization, sandstone, seismic modeling, seismic surveying, SPE Reservoir Evaluation, tunisia government, Upstream Oil & Gas
Country:
- Europe (1.00)
- Africa > Middle East > Egypt > South Central Desert (0.29)
- Africa > Middle East > Tunisia > Mediterranean Sea > Gulf of Hammamet (0.15)
Geologic Time:
- Phanerozoic > Mesozoic > Cretaceous > Lower Cretaceous (1.00)
- Phanerozoic > Cenozoic (1.00)
Oilfield Places:
- Oceania > New Zealand > North Island > Taranaki Basin > Mt. Messenger Formation (0.99)
- Africa > Nigeria > Niger Delta > Niger Delta Basin (0.99)
- Africa > Middle East > Egypt > South Central Desert > Kombombo Basin > West Kom Ombo Concession > Six Hills Formation (0.99)
- (18 more...)
SPE Disciplines: Reservoir Description and Dynamics > Reservoir Characterization > Seismic processing and interpretation (1.00)
Abstract A new play concept is presented for the prospectivity of the Miocene of the Gulf of Hammamet (Central Mediterranean Pelagian Basin, offshore Tunisia), built upon three new elements: the role of the Langhian unconformity, the specific type of migration model, and the mechanism of tectonic inversion, based on an extensive subsurface mapping of the area, on vintage 2d and 3d and newly acquired and processed 3d seismic data using available well logs. The sandstone reservoirs are part of the Oum Douil Group (Serravallian-Tortonian; e.g. Saouaf, Birsa, Zelfa, Somoaa, Beglia Fm’s), and are deposited in the Miocene foreland Basin which developed on the African continental margin, on top of the Langhian unconformity which shows substantial erosion of the Cretaceous-Paleocene sequences, and angular relationships as evident in seismic. We interpret this as related to a foreland bulge connected to the Early Miocene approaching of the Maghrebian (Atlas) mountain front from the North which culminated in the Late Burdigalian shortening pulse and Langhian transgression, a front that moved to the South during the Mio-Pliocene up to the Present position (Sicily-Tunisian Atlas). Our analyses showed that important thickness variations occur in the Miocene deposits; Most of the discovered fields are related to older structural highs showing relatively thin reservoirs. Major burial occurred during the Pliocene deposition in the Jirba trough. All traps (fault bounded structures with sealing faults that in many cases reach the seafloor) are related to the Late Plio–Pleistocene tectonic pulse which inverted the thicker portion of the Miocene sediments which have become structurally higher and constitute the new prospects we identified (e.g. the Houta Prospect). Source rocks are the Fahdene shales (Albian), deposited upon the Mesozoic rifted continental margin, and subcropping below the Langhian unconformity. Important reservoirs and regional seals exist between Fadhene Fm and Birsa Fm, making direct vertical hydrocarbon charge unlikely. Moreover, several fields show an effective regional vertical seal (Paleocene El Haria shale) between Birsa Fm and in the underlying producing Abiod limestones Fm (Upper Cretaceous). We postulate that hydrocarbons migrated through sub-cropping windows in the Langhian unconformity within the Ain Grab bioclastic limestones (deposited on top of it) as carrier beds, and that further migration occurred through juxtapositions on existing fault surfaces. This concept, new for the Miocene play in the Pelagian Basin, explains in a satisfactory way the hydrocarbon occurrences in the discovered fields. The new play concept, which has been overlooked previously because the main exploration objectives were the deeper Mesozoic and Paleogene sequences in the structural highs, is a typical example of a New Play in an Old basin, which opens-up new hydrocarbon exploration opportunities in the Tunisian offshore area.
Geologic Time:
- Phanerozoic > Cenozoic > Neogene > Miocene > Langhian (1.00)
- Phanerozoic > Cenozoic > Neogene > Miocene > Burdigalian (1.00)
Geophysics:
- Geophysics > Seismic Surveying > Surface Seismic Acquisition (0.54)
- Geophysics > Seismic Surveying > Seismic Processing (0.47)
- Geophysics > Seismic Surveying > Seismic Interpretation (0.46)
Oilfield Places:
- Africa > Middle East > Tunisia > Pelagian Basin (0.99)
- Africa > Middle East > Tunisia > Mediterranean Sea > Hammamet Basin (0.99)
- Africa > Middle East > Tunisia > Kairouan Governorate > Pelagian Basin > Sidi El Kilani Concession (SLK) Permit > Abiod Formation (0.99)
- (6 more...)
Traditionally not listed among the world's big oil producers, Tunisia for many years produced hydrocarbons at levels sufficient only for internal consumption needs. For this reason, Tunisia's energy sector often has been overlooked, with the success of the country's economy usually associated with agriculture, While typically the attention of the oil and gas press focuses on oil-producing neighbors Libya and Algeria, Tunisia, nonetheless, has managed its energy resources effectively so that it has avoided excessive energy expenses and enabled the Tunisian economy to develop and grow. Increased energy demand has opened the door for oil alternatives, such as natural gas, and that now is becoming a critical resource for Tunisia. Tunisia reached peak oil production of 114,000 B/D in 1992, and that was sufficient to meet domestic consumption requirements. Since then, oil production has fallen to an average of 69,000 B/D in 2006.
abdurahman benyezza, Algeria, asset and portfolio management, bbl of oil, economic expansion, economic growth, exploitation, field platform, gas reserves, internal consumption, old oil player, reserve production ratio, Resurgence, Secure Energy, social responsibility, startup, sustainability, sustainable development, Tunisia, Upstream Oil & Gas, vice president
Oilfield Places:
- Africa > Middle East > Tunisia > Mediterranean Sea > Gulf of Hammamet > Gabes Basin > Maamoura Field (0.99)
- Africa > Middle East > Tunisia > Mediterranean Sea > Gulf of Hammamet > Gabes Basin > Baraka Field (0.99)
- Africa > Middle East > Tunisia > Mediterranean Sea > Gabes Basin > Miskar Field (0.97)
- (2 more...)
SPE Disciplines:
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