The Challenge of Design and Optimisation of Centrifugal Compressors for the UK’s Largest Producing Offshore Gas Field

2002 ◽  
Author(s):  
M. S. Akhtar ◽  
Simon Clark
Keyword(s):  
Production Rate ◽  
Irish Sea ◽  
The South ◽  
Centrifugal Compressors ◽  
Gas Field ◽  
Wholly Owned Subsidiary ◽  
The Uk

The South Morecambe Field, owned and operated by Hydrocarbon Resources Ltd (a wholly owned subsidiary of Centrica PLC), has proved and probable reserves of 5.3 tcf and is located offshore in the East Irish Sea. With a plateau production rate of 1800mmscfd, the field delivered up to 20% of the UK peak gas demand.

The South Morecambe Field, Blocks 110/2a, 110/3a, 110/8a, UK East Irish Sea

1991 ◽  
Vol 14 (1) ◽  
pp. 527-541 ◽  
Author(s):  
I. A. Stuart ◽  
G. Cowan
Keyword(s):  
Early Stage ◽  
High Reliability ◽  
Irish Sea ◽  
High Permeability ◽  
The South ◽  
Reservoir Properties ◽  
Gas Field ◽  
Reservoir Performance ◽  
Diagenetic History ◽  
First Time

AbstractThe South Morecambe Gas Field has been developed as a seasonal supply field to boost supplies to the National Transmission System at times of peak demand. This mode of operation has led to a requirement for exceptionally high reliability in all aspects of the development. This requirement has prompted the generation of an accurate and comprehensive geological model so that reservoir performance can be predicted as reliably as possible, and that wells can be drilled in optimum locations. The exceptional shallowness of the structure (crest at -2400 ft TVSS, GWC -3750 ft TVSS), coupled with the need to drain the reservoir cost-effectively and to minimize the risk of well interference has led to the use of slant drilling techniques for the first time in European waters. The field is located in the East Irish Sea Basin. The Triassic Sherwood Sandstone Gp forms the reservoir, and the Mercia Mudstone Gp provides the seal. The reservoir sands were laid down in a rapidly subsiding basin under continental semi-arid conditions, and comprise a complex interplay of major channel-fill sandstones, secondary channel-fill sandstones associated with non-channelized sheetflood sandstones, and localized, very high permeability (> 1000 md) aeolian and reworked aeolian sandstones. A vertical organization of these facies has been observed, with some intervals dominated by channel deposition, others by non-channelized deposits, due to periodic adjustments of the whole basin, and this has permitted the establishment of a reservoir zonation. A complex diagenetic history is recognized, with several phases of dolomite and quartz cementation. Differential compaction is also a major control on the disposition of reservoir properties. The greatest control on permeability (but not porosity) is platy illite which formed beneath a palaeo-GWC at an early stage in the growth of the structure, and which gives rise to a diagenetic layering of the reservoir into a high permeability Illite-Free Layer and a deeper, low permeability Illite-Affected Layer. The data presented herein is based upon the results of development drilling on South Morecambe.

International Listening Post report summary: the world at the dawn of 2019

2019 ◽  
Vol 19 (1) ◽  
pp. 121-124
Author(s):  
Sandy Henderson ◽  
Ulrike Beland ◽  
Dimitrios Vonofakos
Keyword(s):  
South Africa ◽  
Faroe Islands ◽  
The South ◽  
The World ◽  
The Uk

On or around 9 January 2019, twenty-two Listening Posts were conducted in nineteen countries: Canada, Chile, Denmark, Faroe Islands, Finland, Germany (Frankfurt and Berlin), Hungary, India, Ireland, Israel, Italy (two in Milan and one in the South), Peru, Serbia, South Africa, Spain, Sweden, Taiwan, Turkey, and the UK. This report synthesises the reports of those Listening Posts and organises the data yielded by them into common themes and patterns.

Labels, Histories, Politics: Indian/South Asian Dance on the Global Stage

2008 ◽  
Vol 26 (2) ◽  
pp. 223-243 ◽  
Author(s):  
AVANTHI MEDURI
Keyword(s):  
South Asian ◽  
First Century ◽  
Nation State ◽  
The South ◽  
Global Networks ◽  
Indian Nation ◽  
The 1950S ◽  
Twenty First Century ◽  
The Uk

In this paper, I discuss issues revolving around history, historiography, alterity, difference and otherness concealed in the doubled Indian/South Asian label used to describe Indian/South Asian dance genres in the UK. The paper traces the historical genealogy of the South Asian label to US, Indian and British contexts and describes how the South Asian enunciation fed into Indian nation-state historiography and politics in the 1950s. I conclude by describing how Akademi: South Asian Dance, a leading London based arts organisation, explored the ambivalence in the doubled Indian/South Asian label by renaming itself in 1997, and forging new local/global networks of communication and artistic exchange between Indian and British based dancers and choreographers at the turn of the twenty-first century.

scholarly journals Introduction of the South African SARS-CoV-2 variant 501Y.V2 into the UK

2021 ◽  
Author(s):  
Julian W. Tang ◽  
Oliver T.R. Toovey ◽  
Kirsty N. Harvey ◽  
David D.S. Hui
Keyword(s):  
South African ◽  
The South ◽  
The Uk

scholarly journals In Silico Investigation of the New UK (B.1.1.7) and South African (501Y.V2) SARS-CoV-2 Variants with a Focus at the ACE2–Spike RBD Interface

2021 ◽  
Vol 22 (4) ◽  
pp. 1695
Author(s):  
Bruno O. Villoutreix ◽  
Vincent Calvez ◽  
Anne-Geneviève Marcelin ◽  
Abdel-Majid Khatib
Keyword(s):  
Amino Acid ◽  
South African ◽  
In Silico ◽  
Neutralizing Antibodies ◽  
Viral Escape ◽  
Spike Protein ◽  
Amino Acid Substitutions ◽  
The South ◽  
African Strain ◽  
The Uk

SARS-CoV-2 exploits angiotensin-converting enzyme 2 (ACE2) as a receptor to invade cells. It has been reported that the UK and South African strains may have higher transmission capabilities, eventually in part due to amino acid substitutions on the SARS-CoV-2 Spike protein. The pathogenicity seems modified but is still under investigation. Here we used the experimental structure of the Spike RBD domain co-crystallized with part of the ACE2 receptor, several in silico methods and numerous experimental data reported recently to analyze the possible impacts of three amino acid replacements (Spike K417N, E484K, N501Y) with regard to ACE2 binding. We found that the N501Y replacement in this region of the interface (present in both the UK and South African strains) should be favorable for the interaction with ACE2, while the K417N and E484K substitutions (South African strain) would seem neutral or even unfavorable. It is unclear if the N501Y substitution in the South African strain could counterbalance the K417N and E484K Spike replacements with regard to ACE2 binding. Our finding suggests that the UK strain should have higher affinity toward ACE2 and therefore likely increased transmissibility and possibly pathogenicity. If indeed the South African strain has a high transmission level, this could be due to the N501Y replacement and/or to substitutions in regions located outside the direct Spike–ACE2 interface but not so much to the K417N and E484K replacements. Yet, it should be noted that amino acid changes at Spike position 484 can lead to viral escape from neutralizing antibodies. Further, these amino acid substitutions do not seem to induce major structural changes in this region of the Spike protein. This structure–function study allows us to rationalize some observations made for the UK strain but raises questions for the South African strain.

scholarly journals Liaison psychiatry services in south England

2010 ◽  
Vol 34 (7) ◽  
pp. 270-273 ◽  
Author(s):  
Jackie Gordon ◽  
Sonia Wolf
Keyword(s):  
Royal College ◽  
Full Time ◽  
The South ◽  
Liaison Psychiatry ◽  
Hospital Size ◽  
Staffing Levels ◽  
The Past ◽  
Patient Groups ◽  
The Uk ◽  
And Function

Aims and methodTo investigate liaison psychiatry services across 38 acute trusts in the south of England. We used a telephone survey and compared the results to service structure and function as recommended by the Royal College of Physicians and the Royal College of Psychiatrists.ResultsApproximately two-thirds of trusts surveyed had a dedicated liaison service and this was not significantly related to hospital size. Most liaison teams were understaffed in all disciplines and only a third had a full-time consultant. Services for specialist patient groups were generally well provided for; 37% of teams had been created in the past 5 years and 33% were planning to increase their staffing levels in future.Clinical implicationsLiaison services in the south of England are similar to those in other parts of the UK that have been surveyed. Although the services did not meet the Colleges' recommendations, our study shows some recent growth and development in this specialty.

scholarly journals Iodine deficiency in pregnant women living in the South East of the UK: the influence of diet and nutritional supplements on iodine status

2014 ◽  
Vol 111 (9) ◽  
pp. 1622-1631 ◽  
Author(s):  
Sarah C. Bath ◽  
Alan Walter ◽  
Andrew Taylor ◽  
John Wright ◽  
Margaret P. Rayman
Keyword(s):  
Pregnant Women ◽  
Iodine Deficiency ◽  
Urinary Iodine ◽  
World Health ◽  
The South ◽  
Childbearing Age ◽  
Iodine Status ◽  
Supplement Use ◽  
Iodine Excretion ◽  
The Uk

Iodine is a key component of the thyroid hormones which are crucial for brain development. Adequate intake of iodine in pregnancy is important as in utero deficiency may have lifelong consequences for the offspring. Data on the iodine status of UK pregnant women are sparse, and there are no such data for pregnant women in the South East of the UK. A total of 100 pregnant women were recruited to a cross-sectional study carried out at the Royal Surrey County Hospital, Guildford, at their first-trimester visit for an ultrasound scan. The participants provided a spot-urine sample (for the measurement of urinary iodine concentration (UIC) and creatinine concentration) and 24 h iodine excretion was estimated from the urinary iodine:creatinine ratio. Women completed a general questionnaire and a FFQ. The median UIC (85·3 μg/l) indicated that the group was iodine deficient by World Health Organisation criteria. The median values of the iodine:creatinine ratio (122·9 μg/g) and of the estimated 24 h iodine excretion (151·2 μg/d) were also suggestive of iodine deficiency. UIC was significantly higher in women taking an iodine-containing prenatal supplement (n 42) than in those not taking such a supplement (P< 0·001). In the adjusted analyses, milk intake, maternal age and iodine-containing prenatal supplement use were positively associated with the estimated 24 h urinary iodine excretion. Our finding of iodine deficiency in these women gives cause for concern. We suggest that women of childbearing age and pregnant women should be given advice on how to improve their iodine status through dietary means. A national survey of iodine status in UK pregnant women is required.

Sign in / Sign up

Export Citation Format

Share Document