Tectonic History and Basement Fault Control on Structural Development of an
Offshore Field, Abu Dhabi

Edwards, Henry; Sit, Kam; Bu-Al-Rougha, Hamad; Sultan, Akmal; Khouri, Naeema

doi:10.2523/101416-ms

Cited by 4 publications

(4 citation statements)

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“…This tectonism activated movement of the Precambrian Ara salt layers below that further amplified these structures (Al- Barwani and Mclay, 2008). The field is faulted and fractured (Tamura et al, 2004;Edwards et al, 2006;Edwards, 2006). The main source of oil was the Shu'aiba basinal facies that is thought to have reached maturity during the late Cretaceous (Murris, 1980;Oswald et al, 1995;Milner, 1998) around or shortly after the onset of uplift and the start of trap formation (Gumati, 1993).…”

Section: Introductionmentioning

confidence: 98%

Dynamics of cementation in response to oil charge: Evidence from a Cretaceous carbonate field, U.A.E.

Cox

Wood

Dickson

et al. 2010

Sedimentary Geology

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Section: Introductionmentioning

confidence: 98%

Dynamics of cementation in response to oil charge: Evidence from a Cretaceous carbonate field, U.A.E.

Cox

Wood

Dickson

et al. 2010

Sedimentary Geology

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“…This mechanism is however not sufficient to explain the occurrence of the two sub-perpendicular fault sets. Such pattern can be interpreted as resulting from combined sequences of regional extension and uplift (diapir related), as proposed by Yamada et al (2005), and by Sims et al (2013) after their analogic modeling, as well as by Edwards et al (2006) after their 3D structural seismic analysis of an Abu Dhabi offshore field.…”

Section: Geologymentioning

confidence: 85%

Development of a Giant Carbonate Oil Field, Part 1: Fifty Years of Pressure Maintenance History

Pavangat¹,

Patacchini²,

Goyal³

et al. 2015

Day 3 Wed, November 11, 2015

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The giant field considered in this paper, located offshore Abu Dhabi, has so far been developed with solely a pressure maintenance-oriented strategy despite having produced for nearly fifty years. Such achievement has been possible because the field, divided into three stacked isolated reservoirs, is relatively homogeneous with little-to-no flow barriers.The purpose of this paper is two-fold. First, propose a review and critical discussion of the different pressure maintenance methods employed so far, which chronologically include gravity-driven dumpflood water injection, peripheral powered water injection, and down-flank as well as crestal gas injection.Second, present a segmentation mainly based on pressure trends on which injection-production metrics can be computed to help reservoir management pinpoint areas lacking support. A key to such analysis in the presence of peripheral water injection is to account for efficient water only, i.e., discard losses to the aquifer. For this purpose, a workflow involving streamline based post-processing of reservoir simulations corroborated by material balance analysis is used.Recent increasing trends in WCT and GOR indicate that a development solely based on pressure maintenance and reservoir energy (i.e., without artificial lift) is not sustainable anymore, and must transition to sweep-oriented. Plans for such migration are discussed in the companion paper of Nakashima et al. (SPE-177801).

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“…The average reservoir porosity ranges from 10 to 25% and the permeability from 10 to 100 md. Fractures have been reported in TH1 and TH3 [Edwards et al, 2006, Skeith et al, 2015. These fractures generally occur at the boundaries of dense zones and reservoir units [Shekhar et al, 2017].…”

Section: Study Area and Field Datamentioning

confidence: 99%

Compressional and shear wave attenuations from walkway VSP and sonic data in an offshore Abu Dhabi oilfield

Bouchaala¹,

Ali²,

Matsushima³

2021

Comptes Rendus. Géoscience

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Seismic attenuation was estimated from compressional (P) and shear (S) waves carefully extracted from three-component vertical seismic profiling (VSP) data. A high sensitivity of attenuation to fluid content was noticed, which shows the advantage of its use as a seismic attribute for reservoir studies. Contrary to most observations in fully saturated sandstones, the magnitude of P to S wave attenuation in the studied carbonate reservoir zones is higher than one. This disagreement is most probably because the fluid flow models developed to describe the attenuation mechanisms in sandstones are not valid for carbonate rocks due their complex texture. Moreover, the magnitude of seismic attenuation in the reservoir zones is controlled by the saturation of pore fluids and clay content. Furthermore, the attenuation magnitudes obtained at sonic and VSP frequencies are of the same order, and compressional and shear attenuations show similar variation at both frequencies. This indicates frequency-independent attenuations in the studied oilfield.

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Tectonic History and Basement Fault Control on Structural Development of an Offshore Field, Abu Dhabi

Cited by 4 publications

References 0 publications

Dynamics of cementation in response to oil charge: Evidence from a Cretaceous carbonate field, U.A.E.

Dynamics of cementation in response to oil charge: Evidence from a Cretaceous carbonate field, U.A.E.

Development of a Giant Carbonate Oil Field, Part 1: Fifty Years of Pressure Maintenance History

Compressional and shear wave attenuations from walkway VSP and sonic data in an offshore Abu Dhabi oilfield

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