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Abstract Analysis of field performance is a critical step in improving the production efficiency and optimizing the cost of operations. However, existing methodologies of analysis have limitations, particularly in the size of the analysis set and the inability to compare different types of assets. The new methodology was designed to overcome these limitations. This paper explains the methodology of field performance assessment and shares some high-level results of the analysis. Operational performance is compared with results within a peer group. It allows the operator to obtain insightful information on how to improve the efficiency and reliability of production operations. The methodology is characterized by high quality performance indicators โ the large amounts of data were collected from the operators and public sources, including cost, production, and technical field data. The detailed analysis is conducted for 12 standard operating cost classifications across seven oil and two gas peer groups, based on similar geological and operational characteristics. The methodology focuses on operations cost performance, production efficiency and production reliability performance, efficiency and cost driver analysis, and gives a suggested action plan. The paper also demonstrates how the results may be utilized to improve efforts by operators in the environment of mature oil fields with declining production levels. The described methodology was applied to an analysis of the Permian Basin, which contains a large number of maturing oil fields. The study assessed 90 fields, including 35 waterfloods, 20 primary, 15 tertiary, and 20 gas fields for the period of mid-year 2010 to mid-year 2011. Trends and correlations between production efficiency and cost driver factors were found. This led to the issuing of recommendations to the producers. The proposed methodology can be applied to an analysis of the operations performance of mature oilfields in Russia, which will result in low operating costs and higher production volumes.
- North America > United States > Texas (0.36)
- North America > United States > New Mexico (0.36)
- Research Report > Experimental Study (0.67)
- Research Report > New Finding (0.49)
- North America > United States > Texas > Permian Basin > Yeso Formation (0.99)
- North America > United States > Texas > Permian Basin > Yates Formation (0.99)
- North America > United States > Texas > Permian Basin > Wolfcamp Formation (0.99)
- (21 more...)
- Production and Well Operations > Well Operations and Optimization (1.00)
- Management > Asset and Portfolio Management > Field development optimization and planning (0.55)
- Management > Strategic Planning and Management > Benchmarking and performance indicators (0.51)
- Reservoir Description and Dynamics > Improved and Enhanced Recovery > Waterflooding (0.35)
Abstract The paper presents a new approach for modeling important geological elements, such as reservoir, trap and source, in a unified statistical model. This joint modeling of these geological variables is useful for reliable prospect evaluation, and provides a framework for consistent decision making under uncertainty. A Bayesian Network, involving different kinds of dependency structures, is used to model the correlation within the various geological elements, and to couple the elements. Based on the constructed network, an optimal sequential exploration strategy is established via dynamic programming. This strategy is useful for selecting the first prospect to explore, and which decisions to make next, depending on the outcome of the first well. A risk neutral decision maker will continue exploring new wells as long as the expected profit is positive. The model and choice of exploration strategy is tailored to a case study represented by five prospects in a salt basin, but it will also be useful for other contexts. For the particular case study we show how the strategy clearly depends on the exploration and development cost, and the expected volumes and recovery factors. The most lucrative prospect tends to be selected first, but the sequential decisions depend on the outcome of the exploration well in this first prospect.
- Geology > Structural Geology > Tectonics (0.94)
- Geology > Geological Subdiscipline (0.69)
- Geology > Rock Type > Sedimentary Rock (0.68)
- Asia > Middle East > Kuwait > Jahra Governorate > Arabian Basin > Widyan Basin > North Kuwait Jurassic (NKJ) Fields > Marrat Formation > Upper Marrat Formation (0.98)
- Asia > Middle East > Kuwait > Jahra Governorate > Arabian Basin > Widyan Basin > North Kuwait Jurassic (NKJ) Fields > Marrat Formation > Sargelu Formation (0.98)
Strategic Development of Offshore Oil Production In Katakolo of Greece Under Multiple Criteria Considerations
Vamvinis, Athanasios (Department of Civil Engineering, Aristotle University of Thessaloniki (AUTh)) | Angelides, Demos C. (Department of Civil Engineering, Aristotle University of Thessaloniki (AUTh)) | Nikolaou, Constantinos (Kanergy Ltd) | Vagiona, Dimitra (Department of Spatial Planning and Development, Aristotle University of Thessaloniki (AUTh))
ABSTRACT The aim of the present paper is to investigate the feasibility and the type of method for oil production in the offshore area of Katakolo in western Greece. The strategic development of oil production analyzed herein is based on the following five factors:social conditions of the area, geological- geophysical conditions and oil deposit, socio-economic impact and financial considerations of the three proposed methods for oil production, methods for oil storage and transportation and, evaluation and comparison of the three oil production methods. Based on the proposed strategic framework and the results of the associated analysis, it can be stated that this effort is the first one to present the most efficient approach for developing the oil field in Katakolo, taking into account environmental constraints, socioeconomic factors and safety issues. INTRODUCTION The continuous increase of energy demand around the world stimulates interest in finding new oil fields. Oil exploitation represents a significant component of the strategic plans for energy requirements in many countries. While oil remains the dominant source of energy in Greece, exploration till now has been very limited and only in northern Aegean a low oil production exists since 1981. Greece can be considered the least oil explored country in the eastern Mediterranean region. The legal framework being applied since 1995 has led to this stagnation. The removal of this weakness was imperative. The enactment of the new Law 4001/2011 in combination with the preexisting one formed a new flexible legal framework. To overcome the stagnation, Greek authorities focused their efforts on an aggressive oil exploration campaign starting from non-exclusive seismic surveys in the Ionian and southern Cretan Sea and introducing three areas in the procedure of open door (MEECC, 2011). This procedure can be applied in Greece because the areas are permanently available, as they belong to the state.
- Energy > Oil & Gas > Upstream (1.00)
- Government > Regional Government > Europe Government > Greece Government (0.48)
- Europe > Greece > Katakolo Field (0.99)
- Europe > Greece > Ionian Basin (0.99)
Abstract An adventure is something that is exciting and associated with the taking ofrisks. Pazflor project has certainly been an adventure and a huge capital andtechnological investment for Total. The stakes were high with 65% of the production being a heavy viscous oil fromMiocene reservoirs using worlf first technologies, combined with thesimultaneous production of a lighter oil from a deeper Oligocene reservoir andover a very extensive development area. Pazflor is a truly global project with a worldwide control organization and avery demanding schedule. The First Oil achieved on 24th of August 2011, onemonth before the initial planned date, showcased Total's ability to managehighly technological huge international projects.
- Africa > Angola (0.49)
- North America > United States > Texas (0.29)
- Oceania > Australia > Western Australia > Canning Basin > Acacia Formation (0.93)
- Africa > Angola > South Atlantic Ocean > Lower Congo Basin > Block 17 > Pazflor Fields > Zinia Field (0.93)
- Africa > Angola > South Atlantic Ocean > Lower Congo Basin > Block 17 > Pazflor Fields > Acacia Field (0.93)
Abstract HSE The Pazflor SURF installation campaigns kicked-off on 05th September 2010 withthe mobilisation of the first construction vessel and ended in September 2011. With over 800 people present offshore at peak of activity and 1.5 millionmanhours upon completion, it has unfolded without any major incident. During the preparation phase, particular attention was paid to the bridging ofthe HSE management system of the 3 main contractors with the system of Total, and especially the emergency response procedures. During the execution phase, the project installation team focused on theanticipation of co-activities between construction vessels, other vessels suchas drilling rigs and surface or subsea assets and was successful in eliminatingmost of these situations, or properly preparing the one that couldn't beavoided. Campaign size and integrated schedule Pazflor subsea installation campaigns involved the installation of 180 km ofpipelines, 84 km of umbilicals, 17 risers (including 2 IPBs) and 7 dynamicumbilicals as well as over 120 subsea structures totalling about 10,000 tonnes. Over 350 ROV tools and accessories were necessary to perform more than 200subsea tie-ins. The campaign has involved up to 6 main construction vessels at peak of activity(the complete construction spread reaching nearly 40 vessels and barges)working in conjunction with 3 drilling rigs and seismic acquisitionspreads. Potential interferences between the construction spread and other vessels wereanticipated using an integrated location-based planning and were all butcompletely avoided in spite of a very intense period of activity in the firstsemester of 2011. Campaign complexity Both Pazflor Oligocene and Miocene production systems consist in complexassemblies of components with very different design principles and installationconstraints (flexible risers, rigid lines, flextails, subsea connectors, rigidspools, subsea structuresโฆ), which require specific installation means anddictate the installation and test sequence. As a consequence, the plannings ofall the main construction vessels are heavily inter-dependant. Such interdependence raised the stakes of respecting vessels' respectiveschedules a step higher than is usual in offshore operations. Preparation andprior full scale testing allowed to ensure no unexpected event affected thegood development of the more complex installation phases.
- Health, Safety, Environment & Sustainability > HSSE & Social Responsibility Management (1.00)
- Facilities Design, Construction and Operation > Offshore Facilities and Subsea Systems (1.00)
- Facilities Design, Construction and Operation > Pipelines, Flowlines and Risers (0.89)
- Management > Strategic Planning and Management > Project management (0.86)
Near Field Developments with an Upgraded Brown-Field Platform Rig: Sharing the Learning from a Three-Well Extended Reach Drilling (ERD) Program
Mota, Miguel O. (ExxonMobil Development Company) | King, Gregory W. (ExxonMobil Development Company) | O'Donnell, William D. (ExxonMobil Production Company) | Hewit, Kerr (KCA Deutag - RDS) | Dumont, Paul A. (Shell Exploration & Production)
Copyright 2012, IADC/SPE Drilling Conference and Exhibition This paper was prepared for presentation at the 2012 IADC/SPE Drilling Conference and Exhibition held in San Diego, California, USA, 6-8 March 2012. This paper was selected for presentation by an IADC/SPE program committee following review of information contained in an abstract submitted by the author(s). Contents of the paper have not been reviewed by the International Association of Drilling Contractors or the Society of Petroleum Engineers and are subject to correction by the author(s). The material does not necessarily reflect any position of the International Association of Drilling Contractors or the Society of Petroleum Engineers, its officers, or members. Electronic reproduction, distribution, or storage of any part of this paper without the written consent of the International Association of Drilling Contractors or the Society of Petroleum Engineers is prohibited. Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of IADC/SPE copyright. Abstract This paper will summarize the concept selection, concept definition, and modifications for a two-stage upgrade of a 35-yr old platform rig on a production platform to extend the drilling radius from 15 to 25 kft (Cutt 2007), the maximum working pressure (MWP) from 5 to 10 ksi, and how combined projects enabled the development of new fields which could not support subsea infrastructure. The paper will highlight the lessons learned at each stage of the upgrade and the drilling programs, focusing on how the legacy limitations of the original rig design and inherited constraints of 200% well slot utilization were mitigated to enable the drilling of a next generation of wells. The upgrade of the rig in two separate projects allowed the lessons learned from the first extended reach drilling (ERD) upgrade (Cutt 2007) to be applied to the second 10-ksi upgrade.
- North America > United States > Texas > Terry County (0.40)
- North America > United States > Texas > Gaines County (0.40)
- Europe > United Kingdom > North Sea > Southern North Sea (0.40)
- North America > United States > California > San Diego County > San Diego (0.24)
- North America > United States > California > North Pacific Ocean > Santa Barbara Channel > Santa Barbara-Ventura Basin > Santa Ynez Unit > P-0195 > Sacate Field (0.99)
- North America > United States > California > North Pacific Ocean > Santa Barbara Channel > Santa Barbara-Ventura Basin > Santa Ynez Unit > P-0194 > Sacate Field (0.99)
- North America > United States > California > North Pacific Ocean > Santa Barbara Channel > Santa Barbara-Ventura Basin > Santa Ynez Unit > P-0193 > Sacate Field (0.99)
- (23 more...)