Lessons Learned from the Management of Basin Floor Submarine Fan Reservoirs in the UKCS

ABSTRACT The Eocene Tyee Formation of west central Oregon, USA, records deposition in a forearc basin. With outcrop exposures of fluvial/deltaic to shelf and submarine fan depositional environments and known sediment sourcing constrained by detrital zircon dating and mineralogy linked to the Idaho Batholith, it is possible to place deposits of the Tyee Formation in a source-to-sink context. A research program carried out by the Department of Geological Sciences at The University of Texas at Austin and ExxonMobil Research Company’s Clastic Stratigraphy Group has reconstructed the Eocene continental margin from shelf to slope to basin floor using outcrop and subsurface data. This work allows us to put observations of individual outcrops into a basin-scale context. This field trip will visit examples of depositional environments across the entire preserved source-to-sink system, but it will focus on the deep-water deposits of the Tyee Formation that range from slope channels to proximal and distal basin-floor fans. High-quality roadcuts reveal the geometry of slope channel-fills in both depositional strike and dip orientations. Thick, sand-rich medial fan deposits show vertical amalgamation and a high degree of lateral continuity of sandstones and mudstones. Distal fan facies with both classic Bouma-type turbidites and combined flow or slurry deposits are well exposed along a series of new roadcuts east of Newport, Oregon. The larger basin-scale context of the Tyee Formation is illustrated at a quarry in the northern end of the basin where the contact between the oceanic crust of the underlying Siletzia terrane and submarine fan deposits of the Tyee Formation is exposed. The Tyee Formation provides an excellent opportunity to see the facies and three-dimensional geometry of deep-water deposits, and to show how these deposits can be used to help reconstruct ancient continental margins.

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LATE JURASSIC-EARLY CRETACEOUS DEPOSITIONAL SYSTEMS OF THE DAMPIER SUB-BASIN-QUO VADIS?

The APPEA Journal ◽

10.1071/aj93044 ◽

1994 ◽

Vol 34 (1) ◽

pp. 566

Author(s):

Peter Barber

Keyword(s):

Sea Level ◽

Early Cretaceous ◽

Late Jurassic ◽

Geographic Location ◽

Sediment Supply ◽

Submarine Fan ◽

Potential Reservoir ◽

Basin Floor ◽

Quo Vadis ◽

Mapping Techniques

A diminishing prospect inventory based on traditional structural targets, has placed increasing emphasis upon finding commercially viable stratigraphic traps. This is especially true in the Dampier Sub-basin where recent drilling has identified at least twelve depositional sequences within the Late Jurassic to Early Cretaceous succession. These sequences document a far more complex Late Jurassic to Early Cretaceous sedimentary history than previously acknowledged using traditional litho-stratigraphic mapping techniques. Use of a chronostratigraphic framework to develop Late Jurassic and Early Cretaceous systems tract models, reveals that several repetitive facies suites may be penetrated by the drill, depending on geographic location and frequency of lowstand events. These models have profound implications for prediction of Late Jurassic to Early Cretaceous submarine fan systems, their potential reservoir distribution, and sealing capacity for hydrocarbon entrapment.At least eight lowstand events have been recognised in the Oxfordian to Tithonian sequence alone, associated with both synrift crustal extension and/or related fluctuations in global-eustatic sea level. During these lowstand episodes, huge volumes of coarse clastics were transported by mass-flow into the Lewis Trough with sediment transport of some 5–40 km. The magnitude of shelf-margin tectonic instability, sediment supply, and relative sea level change, controlled the geometry of submarine fan complexes that developed within each lowstand depositional cycle. In general, earlier (Oxfordian) basin-floor sand cycles comprise mixed channel-fill and submarinefan lobe moundforms confined to the Lewis Trough. Following collapse of the Madeleine intra-basinal high in early Kimmeridgian times, these earlier channelised lobes were progressively replaced by more widespread, massive, detached, non-channelised basin floor lobes, which became dominant by end-Tithonian time. The Early Cretaceous succession comprises mainly transgressive-highstand shelf to slope sediments, heralding a change from synrift lowstand to post-rift highstand depositional cycles.Sequence boundaries identified in the Dampier Sub-basin demonstrate a remarkable synchroneity with the worldwide global-eustatic curve, suggesting that a symbiotic relationship may exist between major tectonic events and third-order eustatic cycles, at least within the synrift section of the Dampier Sub-basin.

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Abstract: Reservoir Management in Selected Basin Floor Submarine Fan Reservoirs from the UKCS

AAPG Bulletin ◽

10.1306/e4fd38ab-1732-11d7-8645000102c1865d ◽

1999 ◽

Vol 83 ◽

Author(s):

LEONARD, A., M. BOWMAN, and E. JOLL

Keyword(s):

Reservoir Management ◽

Submarine Fan ◽

Basin Floor

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Lessons Learned From Coaching Postsecondary Students With Traumatic Brain Injury

Perspectives of the ASHA Special Interest Groups ◽

10.1044/2019_persp-19-00092 ◽

2020 ◽

Vol 5 (1) ◽

pp. 88-96

Author(s):

Mary R. T. Kennedy

Keyword(s):

College Students ◽

Traumatic Brain Injury ◽

Brain Injury ◽

Sense Of Self ◽

Scientific Evidence ◽

Sudden Onset ◽

Lessons Learned ◽

Speech Language Pathologists ◽

The Brain ◽

Exhaustive List

Purpose The purpose of this clinical focus article is to provide speech-language pathologists with a brief update of the evidence that provides possible explanations for our experiences while coaching college students with traumatic brain injury (TBI). Method The narrative text provides readers with lessons we learned as speech-language pathologists functioning as cognitive coaches to college students with TBI. This is not meant to be an exhaustive list, but rather to consider the recent scientific evidence that will help our understanding of how best to coach these college students. Conclusion Four lessons are described. Lesson 1 focuses on the value of self-reported responses to surveys, questionnaires, and interviews. Lesson 2 addresses the use of immediate/proximal goals as leverage for students to update their sense of self and how their abilities and disabilities may alter their more distal goals. Lesson 3 reminds us that teamwork is necessary to address the complex issues facing these students, which include their developmental stage, the sudden onset of trauma to the brain, and having to navigate going to college with a TBI. Lesson 4 focuses on the need for college students with TBI to learn how to self-advocate with instructors, family, and peers.

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Experiences With and Lessons Learned From Developing, Implementing, and Evaluating a Support Program for Older Hearing Aid Users and Their Communication Partners in the Hearing Aid Dispensing Setting

American Journal of Audiology ◽

10.1044/2020_aja-19-00072 ◽

2020 ◽

Vol 29 (3S) ◽

pp. 638-647 ◽

Cited By ~ 2

Author(s):

Janine F. J. Meijerink ◽

Marieke Pronk ◽

Sophia E. Kramer

Keyword(s):

Large Scale ◽

Hearing Aid ◽

Critical Discussion ◽

Lessons Learned ◽

Research Note ◽

Support Program ◽

Large Sample Size ◽

Long Term Effects ◽

Communication Program ◽

Communication Partners

Purpose The SUpport PRogram (SUPR) study was carried out in the context of a private academic partnership and is the first study to evaluate the long-term effects of a communication program (SUPR) for older hearing aid users and their communication partners on a large scale in a hearing aid dispensing setting. The purpose of this research note is to reflect on the lessons that we learned during the different development, implementation, and evaluation phases of the SUPR project. Procedure This research note describes the procedures that were followed during the different phases of the SUPR project and provides a critical discussion to describe the strengths and weaknesses of the approach taken. Conclusion This research note might provide researchers and intervention developers with useful insights as to how aural rehabilitation interventions, such as the SUPR, can be developed by incorporating the needs of the different stakeholders, evaluated by using a robust research design (including a large sample size and a longer term follow-up assessment), and implemented widely by collaborating with a private partner (hearing aid dispensing practice chain).

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