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Advanced developments in environmentally friendly lubricants for water-based drilling fluid: a review
Xiangyang Zhao1, Daqi Li1, Heming Zhu1
1Key Laboratory of Shale Oil and Gas Enrichment Mechanism and Development, Sinopec Research Institute of Petroleum Engineering Changping District Beijing 100101 China.
RSC Advances
|September 15, 2022
Summary
Environmentally friendly lubricants are crucial for reducing friction in water-based drilling fluids, addressing challenges in extended reach wells. This review covers various lubricant types and their mechanisms, guiding future high-performance fluid development.
Area of Science:
- Petroleum Engineering
- Materials Science
- Tribology
Background:
- High friction and torque in extended reach and horizontal wells pose significant engineering challenges.
- Water-based drilling fluids, preferred due to environmental regulations, exhibit higher friction coefficients ( > 0.2) compared to oil-based fluids ( ~ 0.08).
- Lubricants are essential for mitigating friction in water-based drilling fluids.
Purpose of the Study:
- To provide a comprehensive review of recent advancements in water-based drilling fluid lubricants.
- To elucidate the development and lubrication mechanisms of various environmentally friendly lubricant types.
- To offer insights for future research in high-performance water-based drilling fluid lubricants.
Main Methods:
- Literature review of existing studies on water-based drilling fluid lubricants.
- Categorization of lubricants into solid, ester-based, alcohol-based, and nano-based types.
- Analysis of lubrication mechanisms and evaluation methods for different lubricant categories.
Main Results:
- Identified vegetable oil ester-based, biodiesel, and dispersible nano-lubricants as promising environmentally friendly options.
- Highlighted the importance of understanding lubricant mechanisms for effective application.
- Emphasized the need for comprehensive evaluation methods to guide lubricant development.
Conclusions:
- Environmentally friendly lubricants are key to overcoming friction challenges in water-based drilling fluids.
- Further research into lubrication mechanisms and evaluation is critical for developing next-generation lubricants.
- This review provides a foundation for future innovations in drilling fluid technology.
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