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
Mechanical Analyses and ROP Equation Study of Coiled Tubing Bridge Plugs
Sign Up to like & getrecommendations! Published in 2018 at "Arabian Journal for Science and Engineering"
DOI: 10.1007/s13369-018-3262-7
Abstract: In this study, drillable composite bridge plugs and specialized cylindrical cutter bits were considered as the research objects. Through elastic–plastic mechanical analysis of plugs during drilling, the relationship between single-cutter feeding force and drilling depth… read more here.
Keywords: coiled tubing; rop equation; bridge plugs; bridge ... See more keywords
Mechanical properties of a coiled tubing blowout preventer ram in the shearing process
Sign Up to like & getrecommendations! Published in 2019 at "Natural Gas Industry B"
DOI: 10.1016/j.ngib.2019.04.005
Abstract: Abstract A shear ram is of great significance to ensuring the safe operation of oil/gas well drilling and production, but the mechanical properties of the ram itself in the shearing process are rarely researched. Based… read more here.
Keywords: coiled tubing; shearing process; shear point; stress ... See more keywords
Influencing factors analysis on coiled tubing-in-riser systems considering the force excitation of ocean loads
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DOI: 10.1016/j.oceaneng.2019.06.009
Abstract: Abstract The mechanical behavior of coiled tubing-in-riser systems is critical to success of coiled tubing operations in the development of offshore oil and gas. The purpose of this work is to guide the coiled tubing's… read more here.
Keywords: force excitation; tubing riser; influencing factors; riser ... See more keywords
Dynamic effect analysis of the coiled tubing-in-riser system considering the operation and environmental parameters
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DOI: 10.1016/j.oceaneng.2020.107189
Abstract: Abstract The dynamic response of the coiled tubing (CT)-in-riser system is critical to the success of offshore CT operations. The purpose of this work is to investigate the mechanical behavior of the CT and the… read more here.
Keywords: coiled tubing; system; riser system; tubing riser ... See more keywords
The posting-buckling analysis and evaluations of limit drilling length for coiled tubing in the sidetrack horizontal well
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2018.01.061
Abstract: Abstract Compared with the conventional tubing with threaded connection, the coiled tubing (CT) has the advantages of no screwing on and off and it has been widely used in drilling, work over and fracturing operations.… read more here.
Keywords: coiled tubing; horizontal well; sidetrack horizontal; energy ... See more keywords
Fluid hammer analysis with unsteady flow friction model in coiled tubing drilling
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2018.03.088
Abstract: Abstract Hydraulic vibrator is a useful tool to reduce the mechanical friction and increase the lateral-reach in coiled tubing drilling (CTD). This paper proposes an unsteady friction model to study the interaction between the fluid… read more here.
Keywords: fluid hammer; coiled tubing; friction; tubing drilling ... See more keywords
Coiled tubing friction reduction of plug milling in long horizontal well with vibratory tool
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2019.02.042
Abstract: Abstract With the rapid increase in the exploitation of shale reservoirs in the Sichuan province of China, the demand for long horizontal wells for contacting reservoirs has also significantly expanded. With increasing horizontal sections, the… read more here.
Keywords: long horizontal; tubing friction; plug milling; friction ... See more keywords
The helical buckling analysis of coiled tubing in offshore pipelines
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DOI: 10.1080/17445302.2018.1489203
Abstract: ABSTRACT Buckling deformation of pipe in actual bore hole will limit the maximum running depth and is likely to further damage the drilling pipe, causing huge losses. Therefore, the buckling analysis of the pipe is… read more here.
Keywords: coiled tubing; analysis coiled; tubing offshore; helical buckling ... See more keywords