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PowerPlan Planning Software

Schlumberger's strategic placement of directional engineering centers (DEC*) throughout the world provides the resources to optimize well planning. The engineering centers are staffed by knowledgeable well planners and engineers utilizing PowerPlan software to design complex directional wells. The software provides the means to analyze critical operational components involved in the drilling process.

PowerPlan is an integrated suite of analytic and interpretative PC-based drilling applications. With PowerPlan, well planners are able to design a well trajectory taking into consideration anti-collision risk, BHA design and behavior, torque and drag, hole cleaning, and other operational constraints. The system is usable during the entire drilling process by all involved personnel in the client's office, the engineering centers, and the wellsite. The integrated package provides the resource to share drilling, geological and petrophysical information for more detailed planning and improved efficiency.

The primary focus of PowerPlan is to improve the efficiency of well planning and real-time re-planning. Efficiency is gained with the integration of target selection, geometrical trajectory design and anti-collision analysis without ignoring the additional constraints of rig hydraulic requirements, torque and drag analysis and other operational parameters.

Currently, PowerPlan contains seven modular Windows-based applications linked to a database, which is installed in stand-alone or client server nodes. The applications are used during the planning, execution and evaluation phases of the well. Each program is consistent in the "look and feel" of Microsoft Office®. Individual applications are further discussed in the following sections.

The modular design of the individual applications allows them to be placed on a laptop for use at the wellsite, allowing the Schlumberger engineer and client representative to make well planning modifications while the well is being drilled.

Drilling Data Browser

With the Drilling Data Browser, complete well data is organized and presented in a familiar manner. Drilling Data Browser is equivalent to Microsoft's® Windows Explorer and is used to create structures, slots, wells, boreholes, and sidetracks within a specific field. The projection coordinate system for individual fields and structures is selected from a comprehensive list of worldwide projection models and datum. Scale factors and grid convergence are instantly displayed for the selected projection model and datum.

PowerPlan provides the resource to share drilling, geological and petrophysical information for more detailed planning and improved efficiency.

PowerPlan provides the resource to share drilling, geological and petrophysical information for more detailed planning and improved efficiency.

Excel Drilling Entry

PowerPlans well design function provides an interface to design trajectories, to plot plan and vertical sections and to generate detailed diagnostic plots such as the traveling cylinder.

Survey Editor

The Survey Editor application provides a means to manage all survey information. The application consists of a Microsoft® Excel compatible spreadsheet with plotting and reporting tools. Surveys are entered manually in the form of measured depth, inclination and azimuth triplets, or imported from a wide variety of formats.

The survey editor is automated to calculate Dog-Leg-Severity (DLS), toolface, build rates, and turn rates as the individual surveys are entered. DLS calculations are performed using the Lubinski or Wilson Method. Survey computations are calculated by standard methods including; minimum curvature, radius of curvature, tangential, average angle, balanced tangential, and mercury.

Well Design

The Well Design application provides a platform for advanced 2-D and 3-D geometrical trajectory design. The format of the application is spreadsheet-oriented with color coded-fields to highlight required data entry. The application is automated to perform trajectory calculations for given data requirements (kick-off point, build/turn rates, tangent sections, DLS limits, etc.). The easy to use format eliminates unnecessary mistakes in trajectory design.

The application contains full access to the geological targets defined within the Data Browser application. If needed, additional targets are defined within Well Design to aid in specific trajectory design.

The design trajectory data is shared among the entire suite of PowerPlan applications. Proposed trajectories are immediately available for drilling analysis in the Hydraulics and Torque & Drag applications. Additionally, a full range of plotting and reporting options are available for visualization. Markers, formation boundaries, and casing points are inserted into the trajectory to aid in well design.

Traveling Cylinder

Traveling cylinder

I Survey Q I

I Survey A

I Survey

Survey 0 I

Survey P |

I Survey C~1

I Survey El

Traveling cylinder

I Survey Q I

I Survey A

I Survey

I Survey C~1

I Survey El

Traveling Cylinder Plot

Survey 0 I

Survey P |

Survey T1 Survey Q I

Survey T1 Survey Q I

Close Approach

The Close Approach application is used to perform anti-collision analysis of a proposed well against any surrounding wells. The application has many features that include offset well selection, proximity analysis, error modeling, and plotting capabilities.

The four methods of uncertainty analysis currently available include:

  • Wolff and de Wardt - The ellipsoid of uncertainty model involves six parameters, which are defined for each survey tool. The parameters are comprised of relative depth error, misalignment, inclination error, azimuthal error, string magnetization, and gyro compass error.
  • Simple Cones - Used when no tool error parameters are known. The model consists of expanding cone sections with an initial radius at the wellhead which expand with depth at user defined rates.
  • Shell Model - The model supports survey tools such as EMMS, FINDER, etc., with growth rates that are specified as a function of inclination.
  • Topographic Error Model - A simple and flexible model consisting of a matrix that defines the expected uncertainty for a particular survey instrument and operating environment. The matrix represents a three-dimensional error surface, having azimuth, inclination, and displacement error as axes.

PowerPlan s user friendly interface allows multi-discipline drilling teams to plan, execute and evaluate the drilling process for improved efficiency

Azimuth Inclination Drilling Plot

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  • James barry
    Power plan application has great integration. Its current feature which link windows application to database is feasible which improves data entry efficiency.
    8 years ago

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