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A Novel Solution for Severe Loss Prevention While Drilling Deep Wells

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  • Salaheldin Elkatatny

    (College of Petroleum Engineering & Geosciences, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
    College of Engineering, Department of Mining, Petroleum and Metallugy, Cairo University, Cairo 11435, Egypt)

  • Hany Gamal

    (College of Petroleum Engineering & Geosciences, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia)

  • Abdulmalek Ahmed

    (College of Petroleum Engineering & Geosciences, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia)

  • Pranjal Sarmah

    (Baker Hughes, Dhahran 31952, Saudi Arabia)

  • Shiv Sangaru

    (Baker Hughes, Dhahran 31952, Saudi Arabia)

  • Maryam Alohaly

    (Baker Hughes, Dhahran 31952, Saudi Arabia)

Abstract

The loss of circulation is a big problem in drilling operations. This problem is costly, time-consuming and may lead to a well control situation. Much research has investigated the effectiveness of using different chemicals as lost circulation material (LCM) to stop mud and cement slurry losses. However, there remain many limitations for using such LCM types, especially when it comes to field applications. This paper presents a new high strength lost circulation material (HSLCM) that could effectively be used for managing severe lost circulation cases. The HSLCM could easily be pumped into the thief zone where it forms a gel that solidifies after a setting time to provide sealing between the wellbore and the thief zone. With this technique, the material stops the circulation losses, and hence enhances the well bore stability by reducing the well bore stresses. The HSLCM has a high compressive strength and it has a high acid solubility of around 96%. Because the HSLCM has high tolerance towards contamination, it can be utilized with water-based mud or invert emulsion-drilling fluids, hence providing a wide window of applications with the drilling fluids. In this study, laboratory experiments were conducted to evaluate the rheology, thickening time, compressive strength, and acid solubility of the HSLCM. The results showed good performance for the HSLCM as LCM. In addition, a case field study is presented which shows a successful field treatment for severe losses.

Suggested Citation

  • Salaheldin Elkatatny & Hany Gamal & Abdulmalek Ahmed & Pranjal Sarmah & Shiv Sangaru & Maryam Alohaly, 2020. "A Novel Solution for Severe Loss Prevention While Drilling Deep Wells," Sustainability, MDPI, vol. 12(4), pages 1-15, February.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:4:p:1339-:d:319685
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    Cited by:

    1. Marcin Kremieniewski & Bartłomiej Jasiński & Grzegorz Zima & Łukasz Kut, 2021. "Reduction of Fractionation of Lightweight Slurry to Geothermal Boreholes," Energies, MDPI, vol. 14(12), pages 1-11, June.

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