Results 111 to 120 of about 236,174 (283)
Analysis on the dynamics of flexible drillstring under different drilling parameters
Frontiers in Earth ScienceDuring the operation of the drill string, it displays a degree of flexibility. Simultaneously, its dynamic properties, influenced by complex stress conditions, manifest nonlinearity and uncertainty.
Jifei Cao +8 more
doaj +1 more source
, 1998 Data and supporting documentation were compiled and analyzed for 26 cases of gas grab samples taken during waste-tank core sampling activities between September 1, 1995 and December 31, 1997. These cases were tested against specific criteria to reduce uncertainties associated with in-tank sampling location and conditions.
openaire +2 more sources
Western String Quartet, January 1, 1979
, 2018 Recorded during a live performance at Oakland Recital Hall, Western Michigan University, Jan. 12, 1979, program no. 121 of the Department of Music's 1978-1979 seasonWestern String Quartet (Gerald Fischbach, Barry Ross, violins ; Joseph Work, viola ...
Western String Quartet
core
The Use of Aluminum Drill Pipe for Damping Drill String Vibrations
, 2018 Drill string vibrations are a significant concern during drilling operations, and are a common cause of downhole tool failures and decreases in drilling efficiency.
Evgeny G. Podnos +4 more
core +1 more source
Sustainable Development, EarlyView.ABSTRACT The idea of “decarbonized oil” has become increasingly visible in climate, energy, and corporate transition debates as oil and gas actors seek to reconcile continued fossil fuel production with net‐zero commitments. This article offers a critical narrative review of the concept, asking what political work the idea of decarbonized oil performs ...
Jacob Kwakye
wiley +1 more source
Study on Drill String Fatigue Life in Deepwater Drilling
Shiyou jixie, 2016 Dynamic response of the deepwater drilling platform increases alternating loads of the drilling string.As a consequence,the calculation of drill string fatigue life becomes more complicated.By using the numerical simulation method,a method for studying ...
Wang Jiajia, Chen Jianmin
doaj
Smart Molecules, EarlyView.A 3D‐bioprinted platform with stem cells activates “nerve‐bone” signaling by enabling the spatiotemporal delivery of Nell‐1. This activation enhances neurovascular and bone regeneration through the CYFIP1 cascade. In rat calvarial defects, the platform doubled bone regeneration and nerve repair and tripled vascular density, resulting in superior ...
Minjia Zhu +11 more
wiley +1 more source
Influence of Physical Parameters on Acoustic Transmission Characteristics of Drill String Channel
Shiyou jixie, 2019 The in-depth study of the transmission characteristics of sound waves in the drill string is of great significance for the development of sound transmission systems. The drill string is considered as pipeline composed of different uniform circular tubes.
Huang Mingquan, Zhao Guoshan, Tan Zhe
doaj
High Voltage, EarlyView.ABSTRACT This paper presents a comprehensive review of live‐line work on high‐voltage transmission overhead lines, with a focus on insulation performance, air‐gap breakdown and discharge physics under realistic operating conditions. This review primarily covers journal publications from approximately 2014 to 2026, with emphasis on recent developments ...
Mona Ghassemi, Masoud Farzaneh
wiley +1 more source
Early Inspection of Drill String Fatigue Damage Based on Metal Magnetic Memory Method
Shiyou jixie, 2017 Drill string fracture frequently occurred during drilling operation seriously affected the exploration and development of oil and gas resources.To address the issue,the metal magnetic memory (MMM) detection technique was applied to the drill string ...
Hu Zhibin +6 more
doaj