1887
PDF

Abstract

Summary

Economic production from unconventional reservoirs requires increasing the surface area in contact with the reservoir via hydraulic fracturing. Important to the design of efficient hydraulic fractures is knowledge of the orientation and magnitude of principal stresses, geomechanical rock properties, and the density and orientation of any natural fractures. The use of seismic AVOAz (Amplitude Variation with Offset and Azimuth) inversion to determine fracture density and orientation as well as horizontal stress anisotropy and the orientation of the principal stresses is illustrated using examples from the Middle East and North America. An example is shown of using the results of seismic AVOAz inversion calibrated to geomechanical measurements on cores, to build a 3D MEM (Mechanical Earth Model) for an area in North America. The variation in principal stresses over the area is evaluated using the Finite Element Method. Computed stresses are found to be consistent with variability in production over the area and show stress rotations near faults in agreement with microseismic data.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201702545
2017-11-23
2024-03-28
Loading full text...

Full text loading...

/deliver/fulltext/2214-4609/2017/UR16.html?itemId=/content/papers/10.3997/2214-4609.201702545&mimeType=html&fmt=ahah

References

  1. Bachrach, R., Sayers, C.M., Dasgupta, S., Silva, J. and Volterrani, S.
    [2013]. Recent advances in the characterization of unconventional reservoirs with wide-azimuth seismic data. SPE 168764.
    [Google Scholar]
  2. Suarez-Rivera, R., Deenadayalu, C., Chertov, M., Hartanto, R.N., Gathogo, P. and Kunjir, R.
    [2011]. Improving Horizontal Completions on Heterogeneous Tight Shales. CSUG/SPE-146998.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201702545
Loading
/content/papers/10.3997/2214-4609.201702545
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error