Results 71 to 80 of about 194 (103)

Design and Research of Offshore Oil Spill Removal Ship With Variable Angle of Attack

Volume 6: Ocean Engineering, 2021
Abstract With the continuous development of the global economy and industry, and gradually expand the size of offshore oil exploration and transportation, the possibility of oil field leakage, damage of offshore tanker, oil leakage of the offshore ship and the oil spill is increasing continuously, and the harmfulness is increasing ...
Qibin Ou, Jin Yang, Zhenxiang Zhang, Luo Liu, Yichi Zhang, Ximo Qu   +5 more
openaire   +1 more source

High Angle Directional Drilling With 9 5/8-in. Casing in Offshore Qatar

SPE/IADC Drilling Conference and Exhibition, 2009
Abstract Programs which require drilling through unstable formations at high angle before entering the productive zone for a horizontal well are becoming more common. Casing while drilling is becoming a powerful method in mitigating both lost circulation as well as wellbore stability issues in offshore directional wells ...
Michael Avery, Tod Stephens, Ali K. Al-Hadad, Mounir Turki, Malek Abed   +4 more
openaire   +1 more source

Crustal structure from offshore wide-angle seismic data: Application to South Yellow Sea

2020
<p>South Yellow Sea was a component of the circum-Pacific continental margin active belt, developing on the marine basement during pre-Paleozoic and mid-Paleozoic. The lack of detail in the offshore seismic model in the crustal levels means that the deep structure remains ambiguous.
weina zhao, zhiqiang wu, hongcai shi, hui xie   +3 more
openaire   +1 more source

The Effect of Welding Angle for Acoustic Emission Propagation in Offshore Jacket Platform

Applied Mechanics and Materials, 2013
Considering the requirement of NDT for offshore jacket platform, the effection of welding angle to the propagation characteristic of acoustic emission (AE) is studied. Amplitude and energy are the main analysis parameters for the experiment. As used wildly in jacket structure, the 90 and 45 degrees welding angle are discussed.
Long Wang, Guoan Yang, Le Le Jia, Guang Jia   +3 more
openaire   +1 more source

Integrated multiple wave impedance model of offshore wind turbine considering blade rotation angle

2016 IEEE International Conference on High Voltage Engineering and Application (ICHVE), 2016
Lightning disaster is one of the main factors threatening the safe and stable operation of wind farms. In order to reduce the lightning failure rate of offshore Wind Turbine (WT), the response patterns and influencing factors of transient overvoltage must be accurately analyzed.
Guozheng Wang, Li Zhang, Tong Zhao, Liang Zou   +3 more
openaire   +1 more source

Foam Recompletion of High-Angle, Low-Pressure Dry Gas Wells, Offshore Louisiana

SPE Production Operations Symposium, 1989
ABSTRACT Planning and executing recompletions in low pressure reservoirs (less than 4 lbm/gal equivalent) present operators with several challenging conditions. These include the necessity to protect against formation damage and fluid loss when using low density brines and well control when using foam as the completion fluid.
C.W. Pardo, T.S. Andrus, B.E. Bibb, S.E. Bibb   +3 more
openaire   +1 more source

New refraction/wide-angle reflection profile across the Teisseyre-Tornquist Zone offshore Poland

2020
<p>The southern Baltic Sea area is located in the transition zone between the East European Craton (EEC; Baltica) and the West European Platform (Avalonia). The most prominent tectonic feature in the area is the NW–SE trending Tornquist Zone (TZ), crossing the southern Baltic Sea area between Scania in Sweden and ...
Dariusz Wójcik, Tomasz Janik, Michał Malinowski, Małgorzata Ponikowska, Stanisław Mazur, Tymon Skrzynik, Christian Hübscher   +6 more
openaire   +1 more source

Challenges and Redesign Requirements Drilling High Angle Surface Holes in Giant Offshore Oilfield

Abu Dhabi International Petroleum Exhibition and Conference, 2014
Abstract The island development strategy of the giant offshore oilfield requires the use of extended reach drilling (ERD) design wells. Compared to the typical wells drilled from the wellhead towers in the same field, higher inclinations are required in both the surface hole and intermediate hole to facilitate drilling three dimensional ...
J. T. Ryan, M. Grini, H. Al Junaibi, Y. Al Katheeri, H. E. Edwards, T. Day, H. Rachi, K. Chandran, K. Espeland   +8 more
openaire   +1 more source

High-Angle Directional Drilling With 9 5/8-in. Casing Offshore Qatar

Journal of Petroleum Technology, 2009
This article, written by Assistant Technology Editor Karen Bybee, contains highlights of paper SPE 119446, "High-Angle Directional Drilling With 9⅝-in. Casing in Offshore Qatar," by Michael Avery and Tod Stephens, Occidental Petroleum of Qatar Ltd.; Ali K. Al-Hadad, SPE, Qatar Petroleum; Mounir Turki, SPE, Tesco Corp.; and Malek Abed, SPE, Schlumberger,
openaire   +1 more source

Coordinated Control of DC Grid and Offshore Wind Farms to Improve Rotor-Angle Stability

IEEE Transactions on Power Systems, 2018
This paper proposes a coordinated control strategy for voltage source converter based dc grids and offshore wind farms connected by the dc grids. The strategy could enhance the stability of the onshore synchronous power system subjected to disturbances. Based on the mathematical model of dc grid connected power system and control Lyapunov function, the
Xinkai Fan, Jin Shu, Baohui Zhang
openaire   +1 more source