Determination of Mud Weight for High Pore Pressure and High Temperature Wells in the Hai Thach Field, Vietnam

http://jmes.humg.edu.vn/en/archives?article=1186
  • Affiliations:

    1 Hanoi University of Mining and Geology, Vietnam

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  • Received: 12th-Oct-2016
  • Revised: 15th-Mar-2017
  • Accepted: 30th-June-2017
  • Online: 30th-June-2017
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Abstract:

Determination of suitable mud weights for the wells in the Hai Thach (HT-P) field is a very challenging task because of the high pore pressure and high temperature (HPHT) conditions. The main objective of this study is to determine a suitable mud weight for drilling into the HPHT zone of HT-P well. First, a thermo-chemo-pore-elastic model for calculating the stress around the wellbore is presented. Two failure criteria, Drucker-Prager and Mohr-Coulomb, are used and compared. Then, the determination of model inputs from well logs and available data is summarized. Finally, the numerical results of the model are analyzed to propose a new mud weight for the HPHT zone of HT-P well. The field data, modeling work and the proposed mud weight presented in this study can be used as a reference for drilling new wells in the Hai Thach field to avoid any wellbore instability problems.

How to Cite
Phuong, N.Viet and Binh, B.Thanh 2017. Determination of Mud Weight for High Pore Pressure and High Temperature Wells in the Hai Thach Field, Vietnam. Journal of Mining and Earth Sciences. 58, 3 (Jun, 2017).