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Sirat M.,ADCO
Society of Petroleum Engineers - SPE Reservoir Characterisation and Simulation Conference and Exhibition, RCSC 2015 | Year: 2015

The main objective is to unravel the development of the fracture system within the hydrocarbon fields in the Onshore of Abu Dhabi, where an alternative understanding of the fracture system development in association with the counterclockwise rotation of the regional causative stress throughout the geologic time is introduced in this paper. Manifestation of the tectonic history of Arabia in the UAE is demonstrated by both folding represented by gentle and open folds comprising most of Abu Dhabi's hydrocarbon structural traps and a brittle deformation represented by a fracture system comprising long en echelon seismic faults and several joint and vein sets. The most dominant, tens of kilometers long seismic faults in the Cretaceous rocks of Abu Dhabi are the N75W and N45W oriented faults, which have been considered so far as conjugate strike-slip faults. It is argued here whether these two seismic fault sets, which appear in many instances as conjugate sets, have been really developed coevally by a single tectonic event when the SHmax was approximately at 120°? The current understanding that these faults are strike-slip faults despite the absence of extensive horizontal displacements along them as shown on different time-slices is also discussed. Seismic attribute analysis and interpretation, outcrop analogs and fracture description from logs and FMIs reveal that this fracture system might have been developed in a more complicated manner than reported in different publications. It is proposed here that the N75W seismic faults have been developed first as tensile fractures shortly prior to folding when SHmax oriented approximately at 120°. The N45W seismic faults have been developed at a later stage possibly as splay faults by reactivation/branching from the preexisting N75W when the SHmax was approximately oriented E-W. This has occurred by a continuous counterclockwise rotation of the causative SHmax stress from Cretaceous to present. A periodic strike-slip movement along deep-seated basement faults could also have developed many structural features in the sedimentary cover including several hydrocarbon fields in the Onshore of Abu Dhabi. The implications of the drift of the causative stress with geologic time from ∼120° to E-W, NE-SW and finally to NNE-SSW include its effect in reactivating the preexisting fracture system, tilting folds, and control fluid charge and movement within Abu Dhabi petroleum system. The significance of the results is the impact on exploration, production and field development plans. In the exploration of the new plays, both leads with their fractures can be predicted once the direction of the paleo-causative stress can be defined. In production and filed development planning, predicting the fracture system would help better production with appropriate well placement. Copyright 2015, Society of Petroleum Engineers.

Al-Hammadi Y.A.,ADCO
Proceedings of the SPE/IADC Middle East Drilling Technology Conference and Exhibition | Year: 2013

ADCO has evaluated the potential scope of work for hoists within it's operations and concluded that there is significant potential in terms of freeing up rig time (4-6 rig years per year over 5 years business plan period) and generating cost savings. ADCO's maturing fields and well stock increases the requirement for re-entry and work-over activities with ∼35% of the total well activity, over current business plan period, anticipated to be of this nature. Hoists are capable of performing the majority of this work as well as bringing the additional potential to run completions in new drilled wells thereby allowing early release of the drilling rig. In addition, in Re-entry wells, it can cover the well up to side track level then convential rig can continue the work until the end of the well which will also save the rig time & cost. Some of the potential applications of Hoists include:- • Running scraper, log and completions offline in new drilled wells. • Work-over well repairs (well-kill, pulling old completion and running new completion) for single completion as starter. • Well preparation for re-entry and sidetrack (retrieve existing completion, abandon existing perforated zone). • ESP work-over. • Fishing and Milling operation • Run tie back liners. • Plug and abandon wells. • Production testing including coiled tubing stimulation and wire line operations. • Spotting and squeezing cement plugs, changing THS and X-mass tree. • Casing repair. • Run completion into development well. Copyright 2013, SPE/IADC Middle East Drilling Technology Conference and Exhibition.

Malik J.A.,ADCO
Society of Petroleum Engineers - Abu Dhabi International Petroleum Exhibition and Conference 2012, ADIPEC 2012 - Sustainable Energy Growth: People, Responsibility, and Innovation | Year: 2012

• Managing Change in an organization like ADCO is a difficult and critical task. • Failure to adequately Manage Change has been the direct or underlying cause of many accidents, injuries and breaches of integrity within the industry • The scope of the MoC project covers changes to Facilities. Technical. Operational. Software. Organizational. Standards. Procedural. Documentation. Personnel and Scope changes within ADCO. • The MoC system and solution is a process designed to document the steps that need to be taken to achieve a successful modification or change. It was designed to ensure that potentially hazardous conditions are thoroughly assessed for risk, studied for impact on the facilities and organization and approved by the proper authorities before any changes are made and the required information is documented before implementing a change. • The scope of work for this project was broken down into seven implementation steps and three milestones. • The MoC system was designed to enhance employee safety, productivity, efficiency and support the implementation of any change • During the time of project development, ADCO was on the back side of a major organizational shift / transition from a Functional to an Asset based organization. This transitional change had a profound impact on three critical elements: • PEOPLE ○ The support of our Senior Management Team and good communication proved invaluable to the initial and subsequent project success ○ New roles (MoC Coordinator), organizational responsibilities and competencies had a major impact. • PROCESS ○ Development of the MoC Business Process Map document was at the heart of the project. It took: Six Months, Twenty Versions and Four Drafts of the Workflow Specification. The resulting solution addressed 100% of the technical requirements of our main stakeholders. • TECHNOLOGY ○ The new MoC Solution incorporated IBM MAXIMO Technologies such as: MoC Request (Oil), MoC (Oil), Risk Assessment (Oil), Investigations (Oil), Lessons Learned / Solutions (Oil) applications and the Start Center, KPI's and Reports • Key Success Factors of the MoC project included: ○ Organizational mind set and behavior shift with an increase in overall competency ○ A singular, transparent and auditable change process ○ More effective and efficient use of existing IT tools and resources. Copyright 2012, Society of Petroleum Engineers.

Salim S.E.,ADCO
Society of Petroleum Engineers - Abu Dhabi International Petroleum Exhibition and Conference 2012, ADIPEC 2012 - Sustainable Energy Growth: People, Responsibility, and Innovation | Year: 2012

One of the key aims of any industry, especially petrochemical industry is to ensure safe operation of their plant, distinguished by maximum availability & minimized operating cost. Maintenance measures have been optimized specific to application with increased level of automation. In-spite of these efforts an optimum maintenance management is fatigued with the risk linked to reliability and availability. An orderly method of predictive, condition based and reliability centered maintenance is far from identifying and preventing the victimized failures across the industry. The idea presented is conceptual with practical inclination and in most cases is applicable to any advanced maintenance strategy implementation. This paper initially intends optimizing maintenance plan accounting best practices and established measures which allows experience and findings in multiple plants to be explored by all participants on a common platform. Secondly, tagging a historical database on critical equipment's unexpected failures and its root causes in CMMS helps realizing health-focused maintenance. Such failure mode analysis greatly minimizes chance for failure re-occurrence. This concept, Factual maintenance, is a plant-neutral maintenance strategy which adds value to their competitive position in significantly reducing surprise failures and considerable improving MTBF. The best practice of factual maintenance is during acceptance testing and commissioning. Identifying defects from manufacturing or installation or due to unintended mode of operation is not unusual during acceptance process. Maintaining critical or application specific facilities during O&M phase shall adopt cross plant experience rather restricting to sole type of maintenance practiced. The paper analyzes the current maintenance strategies & how embedding history based knowledge and linking operators into work management will yield most efficient risk reduction. There is no single maintenance strategy suiting all situations, however a blend of maintenance management strategy shall be required for plants with multi critical equipments with varied life span. A right amount of preventive maintenance as well as predictive maintenance is required along with a FMEA to minimize unexpected failures. Structuring a maintenance program based on equipment needs and priorities together with best practices and lessons learned across the varied sites yields greater maintenance effectiveness & asset reliability. Copyright 2012, Society of Petroleum Engineers.

Saadawi H.,ADCO
Society of Petroleum Engineers - North Africa Technical Conference and Exhibition 2012, NATC 2012: Managing Hydrocarbon Resources in a Changing Environment | Year: 2012

According to the US Geological Survey, the world has over 430 billion barrels of technically recoverable heavy oil. There are several hurdles that hinder the large scale development of heavy oil. These include; high energy consumption for thermal recovery; poor recovery in cold production; environmental issues, transportation issues, refineries upgrade and high investment costs. Over the past decade, multiphase pumping has emerged as a best practice in the many of the oil producing areas around the world. It has been used successfully in pumping both light and heavy crude oil. Multiphase pumping offers many advantages in heavy oil production. Multiphase pumps provide a single system for gas, steam and produced fluids. They reduce the back pressure or the well head flowing pressure, which results in higher production. Multiphase pumps have been used to recover annulus gas in cold oil production. Thermal vent energy is transferred to the produced fluids and thus reduces the overall energy consumption. This paper presents an overview of the application of multiphase pumping technology in heavy oil production. Copyright 2012, Society of Petroleum Engineers.

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