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- Time-Sensitive Characteristics of Bedding Shale . . . - GeoScienceWorld
In this paper, through porosity, permeability, acoustic time difference, and triaxial compressive strength experiments on layered shale with different immersion treatments of oil-based drilling fluid that is used in the field, the time-sensitive characteristics of shale deterioration are revealed, and the influence of shale strength
- Effects of Drilling Fluid Intrusion on the Strength . . . - SSRN
Drilling fluid intrusion into shale has a significant effect on its strength characteristics, and related research has great significance for the safe and efficient development of shale reservoirs By improving the conventional immersion method, this paper proposes an experimental method for drilling fluid intrusion into shale
- An experimental study to evaluate the efficiency of silicate drilling . . .
Selective performance of drilling fluids may increase the formation penetration rate and increase the drilling eficiency This paper compares the three types of drilling fluids to
- Research and Application of Drilling Fluid Technology for Shale Oil . . .
Since 2019, drilling of Shahejie Formation shale oil wells in Qikou Sag has been conducted using water-based drilling fluids, resulting in frequent complications such as block loss, stuck drilling and reaming
- The invasion law of drilling fluid along bedding fractures of shale
In this paper, the depth of drilling fluid invasion into shale under different confining pressures and displacement times is intuitively and accurately determined by the displacement experiment and NMR scanning first
- Shale Stability: Drilling Fluid Interaction and Shale Strength
This paper presents main results of a shale stability study, related to the understanding of shale fluid interaction mechanisms, and discusses shale strength correlation The major shale fluid interaction mechanisms: Capillary, osmosis, hydraulic, swelling and pressure diffusion, and recent experimental results are discussed
- Field Tests of High-Density Oil-Based Drilling Fluid Application in . . .
Longmaxi formation demonstrates that the high-density oil-based drilling fluid (HDOF) induced down-hole working condition, which is typically high-temperature, high-pressure and solid-phase-dominant, will directly impact the stability of the wellbore wall
- Rheological Characterization and Shale Inhibition Potential of Single . . .
This study addresses the critical challenge of maintaining drilling fluid performance and wellbore stability in high-pressure, high-temperature (HPHT) environments, where conventional water-based drilling fluids often fail This research investigates whether the integration of single- and dual-nanomaterial systems into base fluids can significantly enhance rheological behavior and shale
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