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Abu Dhabi, United Arab Emirates

Liu E.,ExxonMobil | Zelewski G.,ExxonMobil | Lu C.-P.,ExxonMobil | Reilly J.M.,ExxonMobil | Shevchek Z.J.,Zakum Development Company
Leading Edge (Tulsa, OK) | Year: 2011

The ability to identify fracture clusters and corridors and their prevalent direction within many carbonates and unconventional shale gas/tight gas reservoirs may have a significant impact on field development planning as well as on the placement of individual wells. We believe seismic fracture prediction provides the best opportunity to identify the spatial distribution of fracture corridors, but the reliability of seismic fracture detection technology is constantly being questioned. The criticism results from the degree to which the acquisition footprint, random and coherent noise in the seismic data, and near-surface/overburden issues affect extracted seismic "fracture" attributes. Therefore, a key issue is the separation of artifacts caused by the acquisition footprint and near-surface or overburden anisotropy/structural variations from the anomalies caused by the presence of fractures. © 2011 Society of Exploration Geophysicists. Source

Alhanshi M.,Weatherford | Albraiki H.,Zakum Development Company
Society of Petroleum Engineers - SPE Middle East Intelligent Oil and Gas Conference and Exhibition | Year: 2015

Nowadays, it becomes a fact that knowledge is the number one resource of organizations, and having that knowledge managed and shared effectively gives the organization the competitive advantages among other organizations. Many oil and gas organization believes that having a good systems and environment for knowledge sharing will have positive effect on the learning curve of both individual and organization. In this study the researchers are testing the relationship between the knowledge sharing and employee development and address the key knowledge sharing factors that might have positive relationship with employee effectiveness and so development. An empirical study used to investigate this relationship in two oil and gas companies in United Arab Emirates, a 150 questionnaires were distributed in both companies, it consist of 46 items addressing four factors of knowledge sharing named Organizational culture, Individual Communications skills, Procedural justice, Supervision and feedback. The dependent variable is employee development. 124 responses were valid to use. The analysis were done using the statistical package of social science software (SPSS) and the results showed positive relationship between the global variables (knowledge sharing and employee development) but surprisingly there is one knowledge sharing factor showed no relationship with employee development, it is the one called "Individual Communications skills". At the end of the study the researchers address the limitations of the study and suggest some recommendations for organizations to use in order to improve knowledge sharing which should lead to employee development and accordingly that can give the organization better competitive advantage. Finally the researchers give some suggestions for future research. Copyright 2015, Society of Petroleum Engineers. Source

Varikkodan A.G.,Zakum Development Company
Society of Petroleum Engineers - Abu Dhabi International Petroleum Exhibition and Conference 2012, ADIPEC 2012 - Sustainable Energy Growth: People, Responsibility, and Innovation | Year: 2012

Four 'artificial islands' are being constructed in Giant Offshore Field in Abu Dhabi, for the purpose of using as centers for drilling and oil production. ZADCO carried out extensive studies to assess the effect of these 'artificial islands' on the existing field facilities, such as offshore jacket platforms and pipelines, as these 'islands' would permanently alter the estuaries / topographies of the offshore fields. Studies clearly established that these 'alteration' does influence the long term / short term hydrodynamic forces on the existing offshore facilities thus affecting ZADCO's structural integrity management plan. Therefore, it was important to quantify the extent of these changes on the existing jacket platforms such that appropriate modification to the current plan can be implemented. The present case study attempts to address the above issue by analyzing two representative jacket platforms, out of numerous platforms. SACS structural analysis software has been utilized for the analysis of these two platforms using hydrodynamic models developed for the two cases: (1) before the construction of artificial islands and (2) after the construction of 'artificial islands'. Inplace, Fatigue and Pushover cases are part of major parameters used for the structural integrity of the offshore jacket platforms and the results of these analyses are part of critical input to the structural integrity management plans. It was observed that there were significant changes to the result of these analyses due to the introduction of artificial islands especially for the platforms which are having marginal reserve strength. This, in effect, alters current plan of inspection for critical nodes and members which need to be regularly inspected / monitored. It is also observed that the platforms pile on the mudline need to be inspected more frequently to know whether there are any changes to scouring of piles in soil. As a result of this case study it was established that such studies need to be performed while planning 'artificial islands' like facilities in offshore field like areas in order to asses its effect on existing facilities. Copyright 2012, Society of Petroleum Engineers. Source

Reilly J.M.,ExxonMobil | Shatilo A.P.,ExxonMobil | Shevchek Z.J.,Zakum Development Company
Leading Edge (Tulsa, OK) | Year: 2010

Carbonate platforms in the Middle East continue to represent an important source of hydrocarbon reserves. For more than 20 years, interpretation and attribute extraction from time-based 3D seismic imaging products have been base geoscience data in this production setting. With the continuing advances in seismic imaging, geophysicists have an obvious interest in applying the most current algorithms to their projects. However, many of these carbonate reservoirs have accompanying imaging challenges that cannot be addressed solely through the application of new imaging technology. Alternative processing strategies must be considered, either to replace more conventional approaches and/or to prepare the data so that they conform to the limitations of the imaging algorithm. © 2010 Society of Exploration Geophysicists. Source

Strohmenger C.J.,ExxonMobil | Al-Mansoori A.,University of Tubingen | Al-Jeelani O.,AAPG | Al-Shamry A.,ESG | And 3 more authors.
GeoArabia | Year: 2010

The Mussafah Channel is a man-made canal cut perpendicular to the coastline, located to the southwest of the city of Abu Dhabi, United Arab Emirates, and is ideal for studying coastal depositional processes in an arid environment. The channel walls reveal a few meters of Pleistocene reworked dune deposits, unconformably overlain by Holocene carbonates and sabkha evaporites. The Holocene succession consists of intertidal to shallow subtidal sediments that vary significantly along depositional strike direction. Bladed gypsum crystals, gypsum rosettes, and nodular to highly contorted, discontinuous bands of classic sabkha anhydrite are present along the channel walls. Sedimentology, petrography, SEM, X-ray diffraction, and radiocarbon age-dating analyses of the sabkha sequence show the following profile from base to top: (1) non-bedded carbonate-rich sand: reworked aeolianite with an approximate (ca.) radiocarbon age in years (yrs) before present (BP) ca. 26,80014C yrs BP; (2) cross-bedded to non-bedded carbonate-rich sand: aeolianite/reworked aeolianite (ca. 24,000-23,500 14C yrs BP); (3) crinkly-laminated stromatolitic bindstone: intertidal, low-energy microbial mat (ca. 6,600-6,200 14C yrs BP); (4) lower, discontinuous and in places reworked hardground: cemented channel-lag deposits (ca. 6,40014C yrs BP); (5) peloid-skeletal packstone with rootlets or microbial-laminated peloid-skeletal packstone, laterally grading into fine- to coarse-grained, cross-bedded, cerithidrich, bioclastic packstone, grainstone, and rudstone: lowermost intertidal to shallow subtidal, low-energy, mud-rich rooted and microbial-laminated lagoonal deposits and moderate- to high-energy intertidal to shallow subtidal tidal-channel, tidal-delta, and tidal-bar deposits (ca. 6,200-5,20014C yrs BP); (6) upper discontinuous and shingled hardground: cemented beach rock (ca. 5,700 14C yrs BP); (7) cross-bedded, bioclastic rudstone/grainstone, grading laterally into intervals displaying bladed gypsum crystals and nodular to enterolithic anhydrite: intertidal to shallow subtidal, high-energy longshore beach bar and beach spit deposits; overprinted by sabkha gypsum and anhydrite (ca. 5,000 14C yrs BP). Source

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