Microbial Assessment and Control in Drilling Operations

Autor: Mohammed A Subhi, Ghassan A. Al-Humaid, Xiangyang Zhu, Abdulaziz A Ba Hamdan, Abdalla M Ezzat, Abdulmohsen A. Al-Humam, Mohammed E. Sindi
Rok vydání: 2018
Předmět:
Zdroj: Day 2 Tue, January 30, 2018.
Popis: Microbial contamination and extensive growth of bacteria in the drilling mud impact drilling operation and reservoir integrity. To reduce the damaging effect of microbial growth, drilling mud is generally treated with biocides for microbial control and preventing loss of rheological properties from biodegradation. Make-up water and drilling mud samples from reserve tank and mixing tank were collected from three drilling rigs in Saudi Aramco oilfields. The baseline number of general aerobic bacteria (GAB) and sulfate-reducing bacteria (SRB) in make-up water and drilling mud samples were determined using the Most Probable Number (MPN) method. Microbial growth in the drilling mud and microbial control using glutaraldehyde-based biocide were evaluated under the conditions simulating short-term (
Databáze: OpenAIRE