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Unconventional Gas: Coal Bed Methane Application
- Identification of coal seam stacking and thickness of beds in crosswell image
- Detailed crosswell view of coal seam thickening
- Crosswell log identifies continuity of coal seams between walls
Crosswell Seismic Imaging has been proven to significantly improve coal bed methane operations. Its high-resolution output is often employed at the outset to better understand seam continuity and quality before committing to a drilling program. This same information is then being used to more precisely identify the continuity and thickness of coal seams. Logs generated through Crosswell Seismic Imaging also assist drilling efforts by more accurately identifying the position of seams, with more detail than is possible with any other process.
Crosswell Seismic Imaging has also been particularly beneficial in well placement in multilateral horizontal well trajectory applications, adding a significant element of detail to the process.
Key features of the use of Crosswell Seismic Imaging in coal bed methane applications include:
- Allows operators to drill and complete the seams with more accuracy than is possible with any other technique
- Delivers significantly more accurate reserve calculations
- Allows for a better understanding of often complex interbedded coal / shale sequences so the cleanest, highest-producing zones can be targeted
- Provides a detailed view of the natural fracture and faulting structures within the coal