Conceptual Study of Anthasena: Donut Shaped Semi-Submersible Offshore Drilling and Production Platform to Exploit Marginal Field in East Indonesia

2018 ◽  
Author(s):  
A. D. Wara
Keyword(s):  
Offshore Drilling ◽  
Production Platform ◽  
Conceptual Study ◽  
Marginal Field

130 Fathoms

2010 ◽  
Vol 132 (12) ◽  
pp. 24-28
Author(s):  
John K. Borchardt
Keyword(s):  
Gulf Of Mexico ◽  
Oil Fields ◽  
Ocean Floor ◽  
Production Facility ◽  
Offshore Drilling ◽  
Production Platform ◽  
Development Site

This article presents an overview of the Perdido development site—the world’s deepest offshore drilling and production facility in the Gulf of Mexico. Perdido is located about 250 miles south of Houston. The production platform sits 60 miles beyond any other development in the Gulf. The Perdido platform sits in approximately 8000 feet of water and will access reservoirs deep beneath the ocean floor. Perdido is designed to produce hydrocarbons from not one, but three oil fields. The platform floats over the largest of the three fields, Great White, which is penetrated by 22 wells. Another 13 wells penetrate the more distant Silvertip and Tobago fields. The Tobago field is the deepest of the three, at an ocean depth of more than 9500 feet. Together, the three fields contain 650 million barrels of oil equivalent (boe), of which 300 million boe is thought to be recoverable. Daily peak production is forecast to be 130,000 boe.

Analysis and Preventive Measures of Offshore Steel Structure Welding Crack

2014 ◽  
Vol 945-949 ◽  
pp. 1254-1257
Author(s):  
Sheng Qiang Zhang ◽  
Hui Chi Zhang ◽  
Mo Lin Li ◽  
Wei Xu
Keyword(s):  
Experimental Analysis ◽  
Preventive Measures ◽  
Steel Structure ◽  
Welding Quality ◽  
Prevention Measures ◽  
Offshore Drilling ◽  
Gas Industry ◽  
Production Platform ◽  
Application Characteristics ◽  
Offshore Oil

In recent years, offshore oil & gas industry developed rapidly. Offshore steel structure is the support structure for offshore drilling and production platform, and its welding quality is particularly important in fabrication. This paper aims at the typical welding crack of offshore steel structure, through investigations and experimental analysis, considering the application characteristics of offshore steel structure and site issues, analysis the root causes of welding crack and give the improvement and prevention measures.

Metabolic engineering of CHO cells to prepare glycoproteins

2018 ◽  
Vol 2 (3) ◽  
pp. 433-442 ◽  
Author(s):  
Qiong Wang ◽  
Michael J. Betenbaugh
Keyword(s):  
Metabolic Engineering ◽  
Cho Cells ◽  
Genetic Manipulation ◽  
Chinese Hamster ◽  
Post Translational Modification ◽  
Effector Functions ◽  
Recombinant Glycoproteins ◽  
Production Platform ◽  
Chemical Inhibitors ◽  
Amino Acid Mutations

As a complex and common post-translational modification, N-linked glycosylation affects a recombinant glycoprotein's biological activity and efficacy. For example, the α1,6-fucosylation significantly affects antibody-dependent cellular cytotoxicity and α2,6-sialylation is critical for antibody anti-inflammatory activity. Terminal sialylation is important for a glycoprotein's circulatory half-life. Chinese hamster ovary (CHO) cells are currently the predominant recombinant protein production platform, and, in this review, the characteristics of CHO glycosylation are summarized. Moreover, recent and current metabolic engineering strategies for tailoring glycoprotein fucosylation and sialylation in CHO cells, intensely investigated in the past decades, are described. One approach for reducing α1,6-fucosylation is through inhibiting fucosyltransferase (FUT8) expression by knockdown and knockout methods. Another approach to modulate fucosylation is through inhibition of multiple genes in the fucosylation biosynthesis pathway or through chemical inhibitors. To modulate antibody sialylation of the fragment crystallizable region, expressions of sialyltransferase and galactotransferase individually or together with amino acid mutations can affect antibody glycoforms and further influence antibody effector functions. The inhibition of sialidase expression and chemical supplementations are also effective and complementary approaches to improve the sialylation levels on recombinant glycoproteins. The engineering of CHO cells or protein sequence to control glycoforms to produce more homogenous glycans is an emerging topic. For modulating the glycosylation metabolic pathways, the interplay of multiple glyco-gene knockouts and knockins and the combination of multiple approaches, including genetic manipulation, protein engineering and chemical supplementation, are detailed in order to achieve specific glycan profiles on recombinant glycoproteins for superior biological function and effectiveness.

Conceptual Study of Power System Stabilization and Supply-Demand Balancing for Expansion of the Introduction of Wind Power Generation in Poland

2013 ◽  
Vol 133 (4) ◽  
pp. 350-357 ◽  
Author(s):  
Hiroaki Sugihara ◽  
Akihiro Ogawa ◽  
Manabu Kuramoto ◽  
Fumio Ishikawa ◽  
Hideo Yata ◽  
...  
Keyword(s):  
Power Generation ◽  
Power System ◽  
Wind Power ◽  
Wind Power Generation ◽  
Conceptual Study

Method for the mobile offshore drilling units contracting probability assessment

2018 ◽  
pp. 20-23
Author(s):  
I.P. Zaikin ◽  
◽  
K.V. Kempf ◽  
R.R. Naboka ◽  
V.A. Guregyants ◽  
...  
Keyword(s):  
Probability Assessment ◽  
Offshore Drilling

Drilling and Service Contracts in Offshore Oil and Gas Operations

1973 ◽  
Vol 11 (3) ◽  
pp. 480
Author(s):  
J. M. Killey
Keyword(s):  
Oil And Gas ◽  
Oil Industry ◽  
Offshore Drilling ◽  
Oil Companies ◽  
Drilling Rig ◽  
Service Contracts ◽  
Oil And Gas Operations ◽  
Offshore Oil And Gas ◽  
Offshore Oil ◽  
Offshore Operations

As onshore oil and gas deposits are becoming more difficult to locate, and as the world demands for energy continue to increase at an alarming rate, oil companies are channeling much of their exploration activities towards offshore operations, and in particular, towards operations centered off Canada's coast lines. Because of the environment, offshore drilling presents problems which are novel to the onshore-geared oil industry. J. M. Killey discusses in detail many of the considerations involved in drafting the offshore drilling contract, concentrating on problems such as the liability of the various parties; costs; scheduling; pollution; conflict of laws; etc. Similarly, he discusses service contracts (such as supply boat charters; towing services; helicopter services; etc.^ which are necessity to the operation of an offshore drilling rig. To complement his paper, the author has included number of appendices which list the various considerations lawyer must keep in mind when drafting contracts for offshore operations.

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