Results 21 to 30 of about 360,455 (371)
Experimental study of flow friction behavior in coiled tubing
Energy Reports, 2022 Shihui Sun +3 more
openalex +2 more sources
Study on Erosion Model Optimization and Damage Law of Coiled Tubing
Energies, 2023 Coiled tubing (CT) is used as a velocity string to transport high-velocity gas in drainage gas recovery technology. Sand particles flowing at high speed can cause serious erosion of the pipe wall.
Binqi Zhang +7 more
semanticscholar +1 more source
Temperature Field Study of Offshore Heavy Oil Wellbore with Coiled Tubing Gas Lift-Assisted Lifting
Geofluids, 2023 Offshore heavy oil resources are abundant, but they have greater difficulty and higher costs compared to onshore extraction. When crude oil flows through the seawater section, the temperature of the crude oil decreases faster, making it susceptible to ...
K. Gao +10 more
semanticscholar +1 more source
Edelweiss Applied Science and Technology, 2023 Coil tubing is slim and looks like a long, continuous length of pipe made from carbon steel metal that is a lesion on spool that is 1 to 3.25 inches in diameter of 26,000 feet long.
Muhammad Rafli Abdual Rahman +2 more
semanticscholar +1 more source
Accelerated gas-liquid visible light photoredox catalysis with continuous-flow photochemical microreactors [PDF]
, 2016 In this protocol, we describe the construction and use of an operationally simple photochemical microreactor for gas-liquid photoredox catalysis using visible light.
A Günther +26 more
core +7 more sources
Current Status and Development Trend of Coiled Tubing Operation Equipment in China
Shiyou jixieTo address the issues of coiled tubing operation equipment in China， such as limited operational capability in ultra-deep well and complex working conditions， low intelligent level and dependence on import of key components， the technical status of ...
Zhang Fuqiang +4 more
doaj +2 more sources
Applied Sciences, 2022 Positive Displacement Motors (PDM) are extensively used in the oilfield, either in drilling or in coiled tubing (CT) operations. They provide a higher rate of penetration and the possibility of drilling horizontal wells.
Rafael Augusto Galo Fernandes +3 more
semanticscholar +1 more source
Buckling load of bending coiled tubing under an injector
Advances in Mechanical Engineering, 2018 When coiled tubing is applied in high oil–gas wells, buckling load of a coiled tubing under the injector is the key for functionality. The coiled tubing is curved, but it is simplified to straight tubing for buckling load solved in the past.
ZhaoLiang Zhu, Zheng Liang, Jun Hao
doaj +1 more source
Frictional Pressure Drop for Gas–Liquid Two-Phase Flow in Coiled Tubing
Energies, 2022 Coiled tubing (CT) is widely used in drilling, workover, completion, fracturing and stimulation in the field of oil and gas exploration and development. During CT operation, the tubing will present a gas–liquid two-phase flow state.
S. Sun, Jiahao Liu, Wan Zhang, T. Yi
semanticscholar +1 more source
Jixie qiangdu, 2023 Aiming at the problem of aggravated wear of coiled tubing caused by buckling in underground, a contact wear model between compression buckling coiled tubing and wellbore was established based on submodel method.
LI Gang +5 more
doaj