Managed Pressure Drilling Tackles Pore Pressure Uncertainty While Drilling, Running Liner, and Cementing Across Multiple and Heterogonic Layered Reservoirs for the First Time in the United Arab Emirates

2019 ◽  
Author(s):  
Maha Al Shehhi ◽  
Saleh Al Ameri ◽  
Ayoub Hadj-Moussa ◽  
Mujahed Saleh
Keyword(s):  
Pore Pressure ◽  
United Arab Emirates ◽  
Managed Pressure Drilling ◽  
First Time

Successful Application of Managed Pressure Drilling MPD Technology to Reach TD in a Narrow Margin HPHT Well in the North Sea – A Case History

2021 ◽  
Author(s):  
Babar Kamal ◽  
Emil Stoian ◽  
Graeme MacFarlane
Keyword(s):  
Pore Pressure ◽  
North Sea ◽  
Back Pressure ◽  
Lessons Learned ◽  
The North ◽  
Pull Out ◽  
Bottom Hole ◽  
Managed Pressure Drilling ◽  
Integrity Tests ◽  
Remedial Work

Abstract This paper reviews the recently concluded successful application of a Managed Pressure Drilling (MPD) system on a High-Pressure High-Temperature (HPHT) well with Narrow Mud Weight Window (NMWW) in the UK sector in the Central North Sea. Well-A was drilled with the Constant Bottom Hole Pressure (CBHP) version of MPD with a mud weight statically underbalanced and dynamically close to formation pore pressure. Whilst drilling the 12-1/2" section of the well with statically under-balanced mud weight, to minimize the overbalance across the open hole, an influx was detected by the MPD system as a result of drilling into a pressure ramp. The MPD system allowed surface back pressure to be applied and the primary barrier of the well re-established, resulting in a minimal influx volume of 0.06 m3 and the ability to circulate the influx out by keeping the Stand Pipe Pressure (SPP) constant while adjusting Surface Back Pressure (SBP) through the MPD chokes in less than 4 hours with a single circulation. After reaching the 12-1/2" section TD, only ~0.025sg (175 psi) Equivalent Mud Weight (EMW) window was available to displace the well and pull out of hole (POOH) the bottom hole assembly (BHA) therefore, 3 × LCM pills of different concentrations were pumped and squeezed into the formation with SBP to enhance the NMWW to 0.035sg EMW (245 psi) deemed necessary to kill the well and retrieve BHA. MPD allowed efficient cement squeeze operations to be performed in order to cement the fractured/weak zones which sufficiently strengthened the well bore to continue drilling. A series of Dynamic Pore Pressure and Formation Integrity Tests (DPPT and DFIT) were performed to evaluate the formation strength post remedial work and to define the updated MMW. Despite the challenges, the MPD system enabled the delivery of a conventionally un-drillable well to target depth (TD) without any unplanned increase/decrease in mud weight or any costly contingency architecture operations, whilst decreasing the amount of NPT (Non Productive Time) and ILT (Invisible Lost Time) incurred. This paper discusses the planning, design, and execution of MPD operations on the Infill Well-A, the results achieved, and lessons learned that recommend using the technology both as an enabler and performance enhancer.

First Oman Implementation of Pressurized Mud-Cap Drilling Improves Drilling Efficiency and Sustainability

2021 ◽  
Author(s):  
Cesar Orta ◽  
Mohanad Al Faqih ◽  
Bader Al Gharibi ◽  
Mohammed Al Shabibi ◽  
Ali El Khouly ◽  
...  
Keyword(s):  
Control Device ◽  
Total Loss ◽  
Managed Pressure Drilling ◽  
Drilling Technique ◽  
Drilling Technology ◽  
First Time

Abstract Drilling with a gas cap over the Natih formation in Oman often results in excessive flat time. Using the current dynamic fill equipment to deal with kick and loss scenarios leads to extensive nonproductive time on the rig. Managed pressure drilling (MPD) is a well-established drilling technology, and diverse variants exist to suit different requirements. All those variants use the rotating control device (RCD) as a common piece of equipment, but their procedures are different. The pressurized mud-cap drilling (PMCD) technique in the Natih formation replaces the need for traditional dynamic filling technology. The PMCD application enhances the drilling and completion processes by reducing flat time when total downhole losses are experienced. This paper elaborates on PMCD as a proven drilling technique in total loss scenarios when drilling with it for the first time in the Natih formation in Oman. It describes the PMCD process, the associated equipment, and the results of the inaugural application in the Qalah field.

scholarly journals TAXONOMICAL CONSIDERATIONS, PHYLOGENY, PALEOGEOGRAPHY AND PALEOCLIMATOLOGY OF THE MIDDLE EOCENE (BARTONIAN) PLANKTIC FORAMINIFERA FROM JABAL HAFIT, AL AIN AREA, UNITED ARAB EMIRATES

2020 ◽  
Vol 4 (1) ◽  
pp. 10-20
Author(s):  
Haidar Salim Anan
Keyword(s):  
United Arab Emirates ◽  
Present Author ◽  
Middle Eocene ◽  
Planktic Foraminifera ◽  
Oman Mountains ◽  
Foraminiferal Species ◽  
Al Ain ◽  
Eastern Limb ◽  
First Time

The taxonomical consideration, probable phylogeny and stratigraphic significance of twenty-eight middle Eocene (Bartonian) planktic foraminiferal species from the eastern limb of Jabal Hafit, Al Ain area, United Arab Emirates (UAE), Northern Oman Mountains (NOM) are presented, and twenty one of them are illustrated. Identification of these twenty-eight species belonging to ten genera Globoturborotalia, Subbotina, Globigerinatheka, Inordinatosphaera, Orbulinoides, Hantkenina, Acarinina, Morozovelloides, Pseudohastigerina and Turborotalia has led to the recognition of three biostratigraphic zones, in ascending order: Morozovelloides lehneri PRZ (E11), Orbulinoides beckmanni TRZ (E12) and Morozovelloides crassata HOZ (E13). Eight out of the identified species are recorded, in this study, for the first time from Jabal Hafit: Globoturborotalia martini, Subbotina gortanii, S. jacksonensis, S. senni, Globigerinatheca barri, Acarinina praetopilensis, A. punctocarinata and Morozovelloides bandyi. The second or third record of three species from J. Hafit outside its original records are recently documented by the present author: Inordinatosphaera indica, Hantkenina australis and H. compressa. The paleontology, paleoclimatology and paleogeographic distribution of the identified taxa at Jabal Hafit and other Paleogene outcrops in the UAE and Tethys are presented and discussed. The identified fauna emphasis the wide geographic areas in the Tethys, from Atlantic to Indian-Pacific Oceans via Mediterranean.

The Perilampidae of the United Arab Emirates and Yemen (Hymenoptera: Chalcidoidea)

Zootaxa ◽  
2021 ◽  
Vol 5020 (1) ◽  
pp. 101-129
Author(s):  
D. CHRISTOPHER DARLING ◽  
JEONG YOO
Keyword(s):  
United Arab Emirates ◽  
Arabian Peninsula ◽  
The Family ◽  
First Time

The family Perilampidae is reported for the first time from the Arabian Peninsula. Krombeinius almokha Darling n. sp. is described from Yemen and seven species of Perilampus Latreille are recorded and illustrated from Yemen and the United Arab Emirates. Two species are recognized in the P. auratus group, Perilampus ardens Yoo & Darling n. sp., P. awbalus Yoo & Darling n. sp., one species in the P. laevifrons/chrysopae group, Perilampus khor Yoo & Darling n. sp., three species in the P. tristis group, Perilampus rainerius (Argaman), 1990, P. houbaraensis Yoo & Darling n. sp., P. yemenensis n. sp., and Perilampus microgastris Ferrière, 1930. The species show primarily Afrotropical and Palaearctic affinities. Comparisons and images are also provided for five extralimital species, P. auratus Panzer, 1798, P. tristis Mayr, 1905, P. chrysonotus Förster, 1859, P. seyrigi Risbec, 1952, and P. noemi Nikol’skaya, 1952, and a lectotype is designated for P. microgastris (present designation). The biogeographic affinities of the Arabian Peninsula Perilampidae are discussed as is “dwarfism” in desert Hymenoptera.  

First MPD Project in Myanmar Successfully Completed on Deepwater Exploration Well

2021 ◽  
Author(s):  
Harpreet Kaur Dalgit Singh ◽  
Bao Ta Quoc ◽  
Benny Benny ◽  
Ching Shearn Ho
Keyword(s):  
Pore Pressure ◽  
Control Device ◽  
Back Pressure ◽  
Deepwater Drilling ◽  
Hole Pressure ◽  
Bottom Hole Pressure ◽  
Bottom Hole ◽  
Managed Pressure Drilling ◽  
Pore Pressure Prediction ◽  
Exploration Well

Abstract With the many challenges associated with Deepwater Drilling, Managed Pressure Drilling has proven to be a very useful tool to mitigate many hurdles. Client approached Managed Pressure Drilling technology to drill Myanmar's first MPD well on a Deepwater exploration well. The well was drilled with a Below Tension Ring-Slim Rotating Control Device (BTR-S RCD) and Automated MPD Choke System installed on semi-submersible rig, Noble Clyde Boudreaux (NCB). The paper will detail MPD objectives, application and well challenges, in conjunction with pore pressure prediction to manage the bottom hole pressure to drill to well total depth safely and efficiently. This exploration well was drilled from a water depth of 590m from a Semisubmersible rig required MPD application for its exploratory drilling due to uncertainties of drilling window which contained a sharp pressure ramp, with a history of well bore ballooning there was high potential to encounter gas in the riser. The Deepwater MPD package integrated with the rig system, offered a safer approach to overcome the challenges by enhanced influx monitoring and applying surface back pressure (SBP) to adjust bottom hole pressures as required. Additionally, modified pore pressure hunting method was incorporated to the drilling operation to allow more accurate pore pressure prediction, which was then applied to determine the required SBP in order to maintain the desired minimum overbalance while drilling ahead. The closed loop MPD circulating system allowed to divert returns from the well, through MPD flow spool into MPD distribution manifold and MPD automated choke manifold system to the shakers and rig mud gas separator (MGS). The automated MPD system allows control and adjustments of surface back pressure to control bottom hole pressure. MPD technology was applied with minimal overbalance on drilling and connections while monitoring on background gases. A refined pore pressure hunting method was introduced with manipulation of applied surface back pressure to define this exploration well pore pressure and drilling window. The applied MPD Deepwater technique proved for cost efficiency and rig days to allow two deeper casing setting depths and eliminating requirement to run contingency liners. MPD system and equipment is proving to be a requirement for Deepwater drilling for optimizing drilling efficiency. This paper will also capture detailed lesson learned from the operations as part of continuous learning for improvement on Deepwater MPD drilling.

A Situational Analysis of the Status of Midwifery in North Africa and the Middle East

2014 ◽  
Vol 4 (2) ◽  
pp. 69-76 ◽  
Author(s):  
Atf Ghérissi ◽  
Judith Marie Brown
Keyword(s):  
Middle East ◽  
United Arab Emirates ◽  
Arab Countries ◽  
Situational Analysis ◽  
Mena Region ◽  
Midwifery Education ◽  
Challenges And Opportunities ◽  
The Status ◽  
Strategic Goals ◽  
First Time

Midwives from the Middle East and North African (MENA) region convened in Dubai, United Arab Emirates in 2012 to engage for the first time ever in a discussion concerning regional strategic interventions to strengthen midwifery and the work of midwives in the Arab countries. The workshop was an opportunity to establish a culture of positive and balanced collaboration and mutual understanding among midwives and between midwives and other maternity care professionals including nurses and obstetricians. Key challenges and opportunities in midwifery in the MENA region were identified. Participants agreed on strategic goals to strengthening midwifery education, regulation, and associations in the MENA region.

An updated catalogue of the Histeridae (Insecta: Coleoptera) of the Arabian Peninsula, with biogeographical remarks

Zootaxa ◽  
2006 ◽  
Vol 1157 (1) ◽  
pp. 1 ◽  
Author(s):  
FABIO PENATI ◽  
PIERPAOLO VIENNA
Keyword(s):  
Saudi Arabia ◽  
United Arab Emirates ◽  
Arabian Peninsula ◽  
Transitional Zone ◽  
Distributional Pattern ◽  
Mediterranean Species ◽  
Public And Private ◽  
Palearctic Species ◽  
First Time ◽  
Private Collections

The histerid fauna of the Arabian Peninsula is evaluated. As a result of the study of specimens recently collected in Oman by the scientific expeditions of the Museum of Natural History and Territory of Calci (University of Pisa, Italy), and compiling new data from 15 public and private collections, and literature records, the total number of Histeridae known from the Arabian Peninsula now stands at 67 species, without taking into account dubious species and undetermined taxa (9).Of these 67 species, in total 18 are reported for the first time: 4 for the Arabian Peninsula [Teretrius (Neotepetrius) parasita Marseul, Saprinus (Saprinus) flexuosofasciatus Motschulsky, Chalcionellus hauseri (Schmidt), Hypocacculus (Nessus) hosseinius (Théry)], 9 for Oman [Pachylister luctuosus (Marseul), Hister castus Lewis, Atholus bimaculatus Linnaeus, Atholus scutellaris (Erichson), Saprinus (Saprinus) splendens (Paykull), Hypocacculus (Colpellus) praecox (Erichson), Hypocacculus (Hypocacculus) harmonicus (Marseul), Hypocacculus (Hypocacculus) metallescens (Erichson), Hypocaccus (Hypocaccus) fochi (Auzat)], 2 for Yemen [Saprinus (Saprinus) tenuistrius tenuistrius Marseul, Chalcionellus tunisius (Marseul)] and 3 for Kuwait [Saprinus (Saprinus) moyses Marseul, Pholioxenus mesopotamicus Olexa, Paravolvulus syphax (Reitter)].Histeridae are now known for four national states (Saudi Arabia, Yemen, Oman and Kuwait), while there are no records for Qatar or United Arab Emirates. An updated comprehensive catalogue of the histerid fauna of the Arabian Peninsula is provided.Analysis of faunal affinities shows that it mostly consists of Palearctic species (24 species, equal to 35.9%), followed by Afrotropical and Afrotropico-Mediterranean species (22 species, 32.8%), and cosmopolitan/subcosmopolitan species (7 species, 10.4%); endemics stand at 5 species (7.5%), while species of undefined chorology at 9 (13.4%). On the whole these numbers fit well the largely accepted biogeographical assumption that indicates the Arabian Peninsula as a transitional zone between the Regions Palearctic, Afrotropic and, to a lesser degree, Indo-Malay (e.g., Büttiker 1979). Moreover, a distinctive distributional pattern has been recognised: “Afrotropical” Histeridae are almost exclusively present in the southern and south-western parts of the peninsula, while “Palearctic” Histeridae are mostly present in the inner central and south-eastern parts of the peninsula.Finally, the synonymy Saprinus (Saprinus) osiris Marseul, 1862 = Saprinus (Saprinus) ornatus Erichson, 1834 stated by Müller (1933), but neglected by Mazur (1976, 1984, 1994, 1997), is considered valid.

scholarly journals New and Formerly Unknown Ormyridae Species from the United Arab Emirates (Hymenoptera, Chalcidoidea)

2012 ◽  
Vol 46 (2) ◽  
pp. e-14-e-22 ◽  
Author(s):  
M. Zerova ◽  
L. Seryogina ◽  
A. Van Harten
Keyword(s):  
New Species ◽  
United Arab Emirates ◽  
Species Group ◽  
Palaearctic Species ◽  
Three New Species ◽  
First Time

New and Formerly Unknown Ormyridae Species from the United Arab Emirates (Hymenoptera, Chalcidoidea) Three new species (Ormyrus qurrayahi Zerova, sp. n., O. punctellus Zerova, sp. n. and O. novus Zerova, sp. n.) are described. Two first species belong to diffinis species group (female gaster without dorsal median keel). O. novus sp. n. belongs to orientalis species group (female gaster with dorsal median keel). In addition, two Palaearctic species of the genus Ormyrus are recorded from the United Arab Emirates for the first time. A key to Palaearctic Ormyrus species is provided.

scholarly journals Identification, Geographical Distribution and Hosts of Subterranean Termites in the United Arab Emirates Arid Ecosystem

2005 ◽  
Vol 10 (1) ◽  
pp. 33
Author(s):  
W. Kaakeh
Keyword(s):  
United Arab Emirates ◽  
Host Preference ◽  
Soil Types ◽  
Subterranean Termites ◽  
Arid Ecosystem ◽  
Termite Species ◽  
Plant Materials ◽  
Previous Record ◽  
First Time ◽  
Cellulose Materials

Six termite species, belonging to five genera and three families (Hodotermitidae, Rhinotermitidae and Termitidae) were identified in the United Arab Emirates (UAE). Termite species recorded were the harvester termites Anacanthotermes ochraceus (Burmeister) and Anacanthotermes ubachi (Navas), the sand termite Psammotermes hypostoma (Desneux) and the small waxy termites Microcerotermes diversus (Silvestri), Heterotermes aethiopicus (Sjostedt), and Microtermes najdensis (Harris). Except for a previous record of H. aethiopicus, the other five species were recorded for the first time in the UAE. All species were subterranean in habitat and reach wood sources through earthen gallery systems. Termites were available in areas with varied conditions of climate, vegetation and soil types. Termites showed host preference for dead, living, or decaying plant materials and non-cellulose materials. The dominant termite species recorded was A. ochraceus, followed by P. hypostoma and M. diversus. The distributions of the six termite species varied in each of the seven Emirates. All species were present in the two largest Emirates of Abu Dhabi and Dubai. 

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