Evaluation of Formation Damage of Oil-Based Drilling Fluids Weighted with Micronized Ilmenite or Micronized Barite
- Ahmed F. Farid Ibrahim (Apache) | Manayer Q. Al-Mujalhem (Texas A&M University) | Hisham A. Nasr-El-Din (Texas A&M University) | Mohamed Al-Bagoury (Elkem)
- Document ID
- Society of Petroleum Engineers
- SPE Drilling & Completion
- Publication Date
- September 2020
- Document Type
- Journal Paper
- 402 - 413
- 2020.Society of Petroleum Engineers
- formation damage, ilmenite, drilling fluids
- 36 in the last 30 days
- 159 since 2007
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Solids found in drilling fluids, particularly weighting materials, can cause significant formation damage by plugging of formation pores. This study investigates formation damage caused by using oil-based drilling fluid systems weighted by micronized ilmenite or micronized barite. Rheological properties of the oil-based-mud (OBM) systems were measured. High-pressure/high-temperature (HP/HT) static filtration experiments were conducted. A coreflood system was used to simulate dynamic conditions, allowing for drilling fluid circulation at the face of the core and measuring permeability damage. Computed-tomography (CT) scan analysis revealed formation damage and depth of solid invasion. The paper presents field applications of nondamaging micronized-ilmenite-based OBM, illustrating its advantages.
|File Size||2 MB||Number of Pages||12|
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