BMC Software, Inc., Houston, a provider of enterprise management, has introduced an advanced backup and recovery solution for Oracle(R) that provides database administrators (DBAs) with a simplified solution for addressing one of the most complex and potentially damaging issues, recovery of data. PATROL(R) Recovery for Oracle assures business availability by providing surety to companies that the data that is critical to their business will be recoverable, with minimal loss, in the event of a disaster through an easy-to-use centralized management tool.
PATROL Recovery for Oracle version 2.0 expands upon the functions of previous versions with new features that allow companies to maximize resources while increasing availability of their critical data. The new back up and recovery features include:
-- Centralized management of heterogeneous databases across the enterprises, allowing customers for the - first time - to manage databases other than Oracle, all from a single console;
-- The elimination of management boundaries through remote management of backup and recovery tasks;
-- Greater flexibility and the elimination of guess work by allowing DBAs to perform the smallest, most efficient recovery through precise point-in-time recovery analysis; and
-- The enabling of quick and efficient transaction recovery of bad transactions through log analysis. "With responsibilities for 70+ Oracle databases, we have a strong need for a single solution that will allow us to simplify our complex management environment," said Mike Harris, senior Oracle DBA of Volvo IT North America. "Our team of four Oracle DBAs, with a range of experience from beginner to knowledgeable with BMC's PATROL Recovery for Oracle, were able to install and configure backups for all servers within a matter of two weeks. The simple drag and click process used in BMC's management solution simplified what had been a rather time consuming task for us in the past. Since then we have seen several times how straightforward and clear database recovery can be. The easy three-step process: configure it, do the setup, and let it run on its own, has not only saved us time and money in setting up backups and recoveries, but frees up the entire team's time, allowing us to focus on more critical business issues."
PATROL Recovery for Oracle provides the ability to develop intelligent backup and recovery strategies tailored for a company's specific business and application needs. It is the only product available today that can offer customers such a high-level of functionality across a multitude of platforms, including Oracle, DB2, Microsoft SQL-Server and Exchange, all through a single management console. Further, by insulating the DBA from becoming experts in every platform supported, PATROL Recovery for Oracle enables companies to better maximize their resource management.
"Disasters happen, it is unavoidable. How a company handles them and to what level they let them affect their business is a different story," said Chris Gahagan, vice president and general manager of the Recovery and Storage Management Division of BMC Software. "BMC Software understands that user and application errors happen and systems do go down, that is the unfortunate nature of business. Backup and recovery solutions are as critical to effectively managing a business as understanding that not all applications and databases can be managed the same across a company. The ability to tailor PATROL Recovery to meet a company's individual application and business needs is required by our customers to assure their business availability."
PATROL Recovery for Oracle enables users to perform rapid recovery from a wide range of user or application errors, database outages and physical failures by right-sizing their recovery. It initiates the smallest, most efficient recovery possible to keep a business up and running. PATROL Recovery for Oracle provides assurance of recovery through automation, consistency, guidance and dry-run functionality to eliminate errors and minimize the recovery time.
Thursday, September 13, 2007
Management of geologic risk, uncertainty defines accurate horizontal well placement: addressing geological challenges prior to horizontal well executi
More than 40% of horizontal wells encounter major unexpected structural geologic/stratigraphic changes during drilling that result in wells being sidetracked or serious consideration given to this option. As the hole angle increases and measured depth of bed thickness becomes more distorted, correlation between predicted and actual geologies proportionately increases in difficulty.
Therefore, real-time correlation must be systematically planned in advance, and must identify key marker beds and decision points. Failure to recognize individual parameters within the reservoir of interest, such as stratigraphy, rock type, reservoir geometry and structure, fluid content, and formation petrophysical properties, can result in costly mistakes.
As witnessed during planning and executing horizontal drilling programs in the Hawiyah and Haradh fields of Saudi Arabia, the industry's ability to drill horizontal and high-angle boreholes has improved with the aid of proper geological planning, execution and evaluation. Advances in wireline technology adapted to the drilling environment, in combination with present measurement-while-drilling (MWD) techniques, can allow conventional logging-while drilling (LWD) tools to provide the necessary information and insight for steering boreholes geologically, and for petrophysical evaluation.
The task of assembling relevant information about the geology, as mapped, and then planning a trajectory is not a given. Understanding a reservoir's heterogeneous character and the directional relationship of reservoir permeability is required, as is the ability to adjust the well trajectory while drilling, using resistivity, gamma ray, density and porosity logs. Well planning involves delineating the targets on the basis of seismic maps, top structure maps, offset well logs, geographic target selection, and 3D modeling and visualization, to arrive at a plan of continuous well trajectory to penetrate the target reservoir zone.
Unfortunately, geologic maps are not always correct, as a result of errors in seismic processing and interpretation. Uncertainties in determining target depth and lateral position are combined with an inability to predict small-scale features, such as minor and sub-seismic faults. Therefore, real-time interpretation of all incoming data is just as important as the data, itself. Geological constraints/problems, such as offset well mis-ties, faulting, stratigraphic variations and pinch-outs, pose significant risks during drilling.
The following concerns affect accurate well placement:
* Borehole position uncertainty related to directional survey accuracy.
* Geological uncertainty (structural dip and stratigraphic), such as lateral facies variation.
* Directional control while drilling.
* Unanticipated buildup rates and doglegs found while drilling.
* Limitations of LWD tools and methods.
* Ambiguities inherent in interpreting propagation resistivity logs in horizontal wells.
Proper management of geological risk and uncertainty leads to fewer pilots being drilled with less cost.
DIVERSE RESERVOIRS, SOLUTIONS
The Haradh and Hawiyah wells are located in a geologic trend known as the Khuff. Khuff C sediments were deposited on a shelf of very low relief, where a series of repeated short-lived changes in sea level occurred, which were accompanied by exposure to meteoric fluids and dolomitization by hypersaline fluids. This produced facies variations over large areas. Khuff C carbonates are defined at the base by the underlying regional Khuff D anhydrite and at the top by extensive Khuff C anhydrite, Fig. 1. Four high-frequency sequences make up the Khuff C carbonate interval. The four sequences have been further subdivided into 12 reservoir layers (C1-12) from top to bottom.
Therefore, real-time correlation must be systematically planned in advance, and must identify key marker beds and decision points. Failure to recognize individual parameters within the reservoir of interest, such as stratigraphy, rock type, reservoir geometry and structure, fluid content, and formation petrophysical properties, can result in costly mistakes.
As witnessed during planning and executing horizontal drilling programs in the Hawiyah and Haradh fields of Saudi Arabia, the industry's ability to drill horizontal and high-angle boreholes has improved with the aid of proper geological planning, execution and evaluation. Advances in wireline technology adapted to the drilling environment, in combination with present measurement-while-drilling (MWD) techniques, can allow conventional logging-while drilling (LWD) tools to provide the necessary information and insight for steering boreholes geologically, and for petrophysical evaluation.
The task of assembling relevant information about the geology, as mapped, and then planning a trajectory is not a given. Understanding a reservoir's heterogeneous character and the directional relationship of reservoir permeability is required, as is the ability to adjust the well trajectory while drilling, using resistivity, gamma ray, density and porosity logs. Well planning involves delineating the targets on the basis of seismic maps, top structure maps, offset well logs, geographic target selection, and 3D modeling and visualization, to arrive at a plan of continuous well trajectory to penetrate the target reservoir zone.
Unfortunately, geologic maps are not always correct, as a result of errors in seismic processing and interpretation. Uncertainties in determining target depth and lateral position are combined with an inability to predict small-scale features, such as minor and sub-seismic faults. Therefore, real-time interpretation of all incoming data is just as important as the data, itself. Geological constraints/problems, such as offset well mis-ties, faulting, stratigraphic variations and pinch-outs, pose significant risks during drilling.
The following concerns affect accurate well placement:
* Borehole position uncertainty related to directional survey accuracy.
* Geological uncertainty (structural dip and stratigraphic), such as lateral facies variation.
* Directional control while drilling.
* Unanticipated buildup rates and doglegs found while drilling.
* Limitations of LWD tools and methods.
* Ambiguities inherent in interpreting propagation resistivity logs in horizontal wells.
Proper management of geological risk and uncertainty leads to fewer pilots being drilled with less cost.
DIVERSE RESERVOIRS, SOLUTIONS
The Haradh and Hawiyah wells are located in a geologic trend known as the Khuff. Khuff C sediments were deposited on a shelf of very low relief, where a series of repeated short-lived changes in sea level occurred, which were accompanied by exposure to meteoric fluids and dolomitization by hypersaline fluids. This produced facies variations over large areas. Khuff C carbonates are defined at the base by the underlying regional Khuff D anhydrite and at the top by extensive Khuff C anhydrite, Fig. 1. Four high-frequency sequences make up the Khuff C carbonate interval. The four sequences have been further subdivided into 12 reservoir layers (C1-12) from top to bottom.
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