::::::English Description::::::

Schlumberger Petrel 2008.1 release of Petrel seismic-to-simulation software brings to the petrotechnical desktop improvements in traditional geophysics, geology, and engineering tools as well as cutting-edge technology. Petrel 2008.1 continues to provide innovative technology for exploration geophysics, improve the geological and modeling core, and deliver new functionalities for the reservoir engineer.

 

Geophysics

• Volume and geobody interpretation

  3D seismic interpretation has traditionally been performed by picking points on 2D displays of 3D seismic cubes. The new Petrel Geobody interpretation module employs state-of-the-art volume-blending technology to quickly isolate, extract, and integrate a body directly into a property model for true 3D volume interpretation. This allows users to interactively blend multiple seismic volumes, isolate areas of interest, and then instantly extract those areas into a 3D object called a geobody. This what you see is what you pick approach to volume interpretation is fast, intuitive, and accurate. Once extracted, the geobody can be used to further refine picking parameters, allowing a clear picture of the depositional environment to be created or directly included in the 3D geological model and provide a complete seismic to modeling workflow.
  
   

• Horizon interpretation

  Interpretation is further improved by enhancements to the auto-tracking workflows, including independent refinement of the dip angle of the tracked event in both the inline and crossline for improved accuracy in 3D volume interpretation. Wavelet tracking is now possible with both an asymmetrical and a symmetrical wavelet. Asymmetrical wavelet tracking allows the user to focus on the data either above or below the event to guide tracking, greatly enhancing results particularly in areas of low data quality.
  
   

Geology and modeling

• Performance

  The oil industry today is constantly exploring ways to build bigger and more detailed reservoir models. However, larger models require longer process run times, and the need to work faster becomes critical. Petrel 2008.1 improves performance by supporting multithreading for depth conversion, establishing horizons, volume calculation, some geometrical modeling methods, and property modeling (kriging)—freeing the user's time for other work or running multiple realizations. In addition, enhanced data-tree performance for projects with large numbers of tree nodes has improved speed and performance when scrolling in the data tree, copying and reparenting well logs, and applying saved searches with large numbers of well tops displayed.
  
   

Reservoir engineering

• Sector model

  The ability to test models in a small portion of the field is essential because the simulation of big models is so time-consuming. Petrel 2008.1 enables the creation of single sector models, allowing the user to perform quick simulations on small areas of the full field model, which requires less memory and eliminates the need to rewrite or re-export the dataset.
  
   

• Hydraulic fractures

  Hydraulic fractures are commonly used to improve the inflow performance of wells in low-permeability reservoirs. These fractures are usually defined in simulation using nonstructural grids around the fracture plane, increasing the computation time because of the complexity of the mesh. However, fractures can also be defined by length, height, permeability, and orientation in the simulation model and can be simulated by modifying the well productivity index (PI) and transmissibility of surrounding cells, achieving the same result as with the complex grids. Petrel 2008.1 allows users to model fractures in full field simulation models in this way, which has a negligible impact on run time but captures the effects of flow patterns at the global model scale.
  
   

• Compositional fluids

  Volatile oil and gas condensate reservoirs cannot be modeled accurately with conventional black-oil models. The ability to model fluids at varying levels of approximation is essential, because real hydrocarbon fluids can be extremely complex mixtures. Petrel 2008.1 provides the ability to import and use equations of state in simulation, define sample compositions, and plot phase envelopes for a better understanding of the fluids in the reservoir.
  
   

New enhancements

Innovation

• Graphics processing unit (GPU)-based multivolume rendering and geobody extraction

Workflow

• Auto-tracking improvements
• Synthetic trace import
• New fault surface triangulation algorithm
• Inclusion of levees in channel modeling
• Equipment and hydraulic fractures for completions
• Gradual local gridding option
• Sector modeling

Usability

• Item selection from 3D/2D windows
• Annotation of horizons/faults in interpretation window
• Prefetch seismic data to cache for improved performance
• Well symbol control for subfolders
• Improved kriging performance on large datasets
• Volume calculation performance gains
• Support for 3Dconnexion® devices

Data management

• Support for OpenSpirit V2.9.4 and 3.1
• Write-back of 2D interpretation data to the database when using OpenSpirit
• Reference Project Tool (RPT) well matching, which allows wells to pair up using name, unique well identifier, UWI, surface location, etc