1887
  1. Home
  2. Conferences
  3. Conference Proceedings
  4. 79th EAGE Conference and Exhibition 2017
  5. Conference paper

Abstract

Summary

This publication presents successful mapping of inter-well water saturation in a complex naturally fractured reservoir. The saturation distribution was based on a crosswell electromagnetic (EM) survey integrated with other well / reservoir data. The EM survey was deployed in a swept area of a tight carbonate reservoir in Saudi Arabia, between two horizontal wells, a water injector and a dead producer, using coil tubing conveyance. The presented EM saturation mapping located an area of potentially bypassed hydrocarbons. These findings were confirmed by a newly drilled slanted well that was landed in the inter-well area. The new well targeted an oil column bypassed by the water injection in an otherwise swept area and the well is currently on production. The EM field data were interpreted with a Gauss-Newton 3D inversion code. A resistivity model cannot be directly used for reservoir evaluation, then the subsequent step was to convert the resistivity model into a saturation volume, based on Archie’s law. The survey established a number of world firsts for the EM technology, including horizontal wells deployment, wells spacing >1.3 km, full 3D resistivity inversion and 3D water saturation mapping.

© EAGE Publications BV
Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201700852
2017-06-12
2024-04-19

  • From This Site

    /content/papers/10.3997/2214-4609.201700852
    dcterms_title,dcterms_subject,pub_keyword
    -contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution
    10
    5
Loading full text...

Full text loading...

References

  1. Archie, G.E.
    [1942] The Electrical Resistivity Log as an Aid in Determining Some Reservoir Characteristics, Transactions of the AIME, Vol. 146 No. 1(Dec. 1942): 54–62. SPE-942054-G.
     [Google Scholar]
  2. Mackie, R., WattsM.D. and W.Rodi
    [2007] Joint 3D Inversion of Marine CSEM and MT Data, expanded abstract presented at SEG International Exposition and 77th Annual International Meeting, San Antonio, Texas, 574–578.
     [Google Scholar]
  3. Marsala, A.F., Al-Ruwaili, S. B., Ma, S. M., Al-Ali, Z. A., Al-Buali, M. H., Donadille, J.M., Crary, S. F. and Wilt, M.
    [2008] Crosswell Electromagnetic Tomography: from Resistivity Mapping to Inter-well Fluid Distribution, paper IPTC 12229 presented at the International Petroleum Technology Conference in Kuala Lumpur, Malaysia.
     [Google Scholar]
  4. Marsala, A., Lyngra, S., Safdar, M., Zhang, P. and Wilt, M.
    [2015a] Crosswell Electromagnetic Induction between Two Widely Spaced Horizontal Wells: Coiled-Tubing Conveyed Data Collection and 3D Inversion from a Carbonate Reservoir in Saudi Arabia, expanded abstract presented at SEG International Exposition and 85th Annual Meeting, New Orleans, Louisiana.
     [Google Scholar]
  5. Marsala, A., Zhang, P., Safdar, M. and Wilt, M.
    [2015b] 3D Inversion Practice for Crosswell Electromagnetic Surveys in Horizontal Wells in Saudi Arabia, expanded abstract presented at SEG International Exposition and 85th Annual Meeting, New Orleans, Louisiana.
     [Google Scholar]
  6. Wilt, M., Alumbaugh, D.L., Morrison, H.F., Becker, A., Lee, K.H. and Deszcz-Pan, M.
    [1995] Crosshole Electromagnetic Tomography: System Design Considerations and Field Results, Geophysics, 60, pp. 871–885.
     [Google Scholar]
  7. ZhangP., MarsalaA., LyngraS., AbdallahW. and WiltM.
    [2016] 3D Inversion of Crosswell Electromagnetic Data Collected between Extremely Spaced Horizontal Wells, abstract presented at the 2016 GEO 12th Middle East Conference and Exhibition, Manama, Bahrain.
     [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201700852
Loading
Sweep Efficiency Evaluation to Increase Recovery: An Integrated Approach for Inter-Well Reservoir Saturation Mapping
Conference Proceedings 2017, 1 (2017); https://doi.org/10.3997/2214-4609.201700852
/content/papers/10.3997/2214-4609.201700852
/content/papers/10.3997/2214-4609.201700852
Loading

Data & Media loading...

Most Cited This Month Most Cited RSS feed

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