Identification of downhole conditions in geological drilling processes based on quantitative trends and expert rules
Sign Up to like & getrecommendations! Published in 2021 at "Neural Computing and Applications"
DOI: 10.1007/s00521-021-05759-4
Abstract: In drilling processes, faulty downhole conditions often lead to drilling performance degradation and even serious accidents, such as the blowout, and well collapse. To improve the drilling efficiency and enhance the process safety, a new… read more here.
Keywords: quantitative trends; downhole conditions; processes based; drilling ... See more keywords
An early warning model for the stuck-in medical drilling process based on the artificial fish swarm algorithm and SVM
Sign Up to like & getrecommendations! Published in 2021 at "Distributed and Parallel Databases"
DOI: 10.1007/s10619-021-07344-z
Abstract: To avoid the considerable challenges and losses caused by stuck drilling to normal drilling operations, this article analyses the mechanism of stuck drilling, then combines the artificial fish swarm algorithm (AFSA) and support vector machine… read more here.
Keywords: warning model; artificial fish; drilling; model ... See more keywords
Particular pollutants, human health risk and ecological risk of oil-based drilling fluid: a case study of Fuling shale gas field
Sign Up to like & getrecommendations! Published in 2022 at "Environmental Geochemistry and Health"
DOI: 10.1007/s10653-022-01259-z
Abstract: Samples of new oil-based drilling fluid (NOBDF) and circulating oil-based drilling fluid (COBDF) in Chongqing were tested and analyzed to evaluate the possible impact of oil-based drilling fluid (OBDF) on human health and ecological environment.… read more here.
Keywords: drilling fluid; health; oil; risk ... See more keywords
Investigations into the coiled tubing partial underbalanced drilling (CT-PUBD) technique for drilling hard formations
Sign Up to like & getrecommendations! Published in 2018 at "Petroleum Science"
DOI: 10.1007/s12182-018-0271-9
Abstract: To improve the rate of penetration (ROP) in drilling deep and hard formations, this paper proposes a new drilling method called coiled tubing partial underbalanced drilling (CT-PUBD). As a preliminary investigation into the new drilling… read more here.
Keywords: tubing partial; coiled tubing; underbalanced drilling; drilling ... See more keywords
Determining the machining parameters for femtosecond laser helical drilling of aluminosilicate glass substrate
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Precision Engineering and Manufacturing"
DOI: 10.1007/s12541-017-0109-1
Abstract: In this work, a new laser helical drilling method with high geometrical accuracy is proposed for aluminosilicate glass (ASG) substrates. Laser drilling was performed from the bottom of the substrate to reduce the taper angle.… read more here.
Keywords: aluminosilicate glass; drilling; helical drilling; laser helical ... See more keywords
Mechanical Behaviors of Bottom Hole Assembly with Bent-Housing Positive Displacement Motor Under Rotary Drilling
Sign Up to like & getrecommendations! Published in 2019 at "Arabian Journal for Science and Engineering"
DOI: 10.1007/s13369-017-2564-5
Abstract: Abundant drilling activities had confirmed that the fully rotary drilling can improve the rate of penetration effectively. However, the fully rotary drilling has brought some challenges for the trajectory control ability of the bottom hole… read more here.
Keywords: drilling; rotational speed; bent housing; drill string ... See more keywords
The Numerical Research on Rock Breaking and Rising Mechanism of Rotary-Percussive Drilling
Sign Up to like & getrecommendations! Published in 2019 at "Arabian Journal for Science and Engineering"
DOI: 10.1007/s13369-019-04170-5
Abstract: In this paper, the numerical simulation is used to study the rising mechanism of rotary-percussive drilling, which is under the combination of rotary cutting and axial impact. The main objective of the present work is… read more here.
Keywords: mechanism rotary; rotary percussive; percussive drilling; drilling ... See more keywords
Development of transient heat transfer model for controlled gradient drilling
Sign Up to like & getrecommendations! Published in 2019 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2018.11.064
Abstract: Abstract Accurate prediction of the wellbore temperature is critical to achieve pressure control in controlled gradient drilling. In accordance with the mass, momentum, and energy conservation principles, an integrated heat transfer model was developed for… read more here.
Keywords: heat; drilling; model; controlled gradient ... See more keywords
Geological drilling in McMurdo Dry Valleys and McMurdo Sound, Antarctica: Historical development
Sign Up to like & getrecommendations! Published in 2017 at "Cold Regions Science and Technology"
DOI: 10.1016/j.coldregions.2017.06.007
Abstract: Abstract Geologically, Antarctica is the least explored place on earth. A thick ice sheet covers 98% of the continent, the environment is harsh, and the movement of people and equipment is difficult and costly. Yet… read more here.
Keywords: drilling mcmurdo; drilling; geological drilling; mcmurdo sound ... See more keywords
Cryogenic drilling of carbon fibre reinforced thermoplastic and thermoset polymers
Sign Up to like & getrecommendations! Published in 2020 at "Composite Structures"
DOI: 10.1016/j.compstruct.2020.112625
Abstract: Abstract Carbon fibre reinforced polymers (CFRP) are suitable materials for high-end applications due to the high strength to weight ratio. This important advantage counteracts to their machinability because the inherent anisotropy and the heterogeneity lead… read more here.
Keywords: fibre; thermoplastic thermoset; drilling; fibre reinforced ... See more keywords
Cuttings transport modeling in underbalanced oil drilling operation using radial basis neural network
Sign Up to like & getrecommendations! Published in 2017 at "Egyptian Journal of Petroleum"
DOI: 10.1016/j.ejpe.2016.08.001
Abstract: Abstract Underbalanced drilling is one of the drilling methods for better drilling according to its advantages. Cuttings transport effects on cost, time, and quality of oil/gas wells in drilling operation. Inefficient cleaning of wellbore may… read more here.
Keywords: radial basis; network; cuttings transport; drilling ... See more keywords