The rudist buildup depositional model, reservoir architecture and development strategy of the cretaceous Sarvak formation of Southwest Iran

Du, Yang; Zhang, Jinliang; Zheng, Shi-Yi; Jun, Xin; Chen, Jie; Li, Yi-Zhen

doi:10.1016/j.petlm.2015.04.001

Cited by 23 publications

(2 citation statements)

References 17 publications

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“…Generally, the rudist facies deposited in the crestal areas of actively syn-sedimentary anticline structure southern Iraq and these facies affected by dissolution process [12] and [5]. The thinning, erosion and conglomerates of Misrif crest due to regional uplift during the late Cenomanian to Turonian period [6] and [9]. PLT analysis employed the highest injection rate to evaluate the distribution of water for perforated layers, structural All previous analyses connected together in trying to understand the geological situation and its effect on the injection performance of Mishrif Formation within Shuaiba Dome.…”

Section: Introductionmentioning

confidence: 99%

Structural geology and petrophysics analysis to Injection wells of Mishrif Formation in Shuaiba Dome – Zubair Oil Field

Lazim¹,

Dawood²

2019

Journal of Petroleum Research and Studies

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Mishrif formation is the one of the most important reservoir in Southern – Iraq and the injection water important to support the reservoir pressure. The current study combined the interpretations of PLT, structural geology and petro-physics to understand the distribution of the injection rate for nine injection wells to the Mishrif Formation in Shuaiba Dome (or culmination) - Zubair Oil Field. PLT analysis calculated injection rate for Mishrif Formation, structural analysis included geometric and genetic analysis, whereas petrophysics analysis used open hole logs interpretation and core data for the injection wells to determine the petro-physics characteristics (especially the distribution of porosity and permeability). The current study concluded that the injection rate, porosity and permeability of Mishrif Formation distributed unequally across it. This variation is almost regular, whereas the Upper Mishrif more than Lower Mishrif, while Middle Mishrif get the least value. The thickness of Lower Mishrif more than Upper Mishrif. This may affected by a folding mechanism due to tectonic activity (reactivated basement faults and Hormuz salt structures).

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Section: Introductionmentioning

confidence: 99%

Structural geology and petrophysics analysis to Injection wells of Mishrif Formation in Shuaiba Dome – Zubair Oil Field

Lazim¹,

Dawood²

2019

Journal of Petroleum Research and Studies

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“…It is important to note that the focus of this work is on CH 4 concentrations and not emissions. The two may be very different in particular in this region due to the high number of sources, including the many oil and gas platforms around the Arabian Gulf (Du et al, 2015). The latter may lead to methane being advected by the background flow towards coastal UAE and increasing the local concentrations here.…”

Section: Methane Emissions In the Uaementioning

confidence: 99%

Trends and variability in methane concentrations over the Southeastern Arabian Peninsula

Francis

Weston

Fonseca

et al. 2023

Front. Environ. Sci.

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Methane (CH4) is a potent greenhouse gas with an important contribution to global warming. While national and international efforts have been put in place to reduce methane emissions, little is known about its variability, especially in hotspot regions where natural and anthropogenic emissions are compounded. In this study, the current state of CH4 concentrations and their trends over the United Arab Emirates (UAE) and surrounding region are investigated with satellite and reanalysis data. CH4 concentrations have increased over the last 5 years, with a trend in the satellite-derived column values (XCH4) of about 9 ppb/year. A clear annual cycle is detected in XCH4, with an amplitude of up to 75 ppb and peak values in the warmer months. The largest concentrations are found in coastal sites, where sabkhas and landfills are present, and along the Al Hajar mountains, where agricultural activities and microhabitats that may host CH4-producing microbes occur and where advection by the background flow is likely an important contributor. The reanalysis data shows a good agreement with the satellite-derived estimates in terms of the spatial pattern, but the magnitudes are smaller by up to 50 ppb, due to deficiencies in the data assimilated. Surface CH4 concentrations in the reanalysis data account for more than 50% of the corresponding XCH4 values, and exhibit a seasonal cycle with the opposite phase due to uncertainties in the emissions inventory. Our findings provide an overview of the state of CH4 concentration in the UAE and surrounding region, and may aid local authorities to propose the appropriate emission reduction strategies in order to meet the proposed net-zero greenhouse gas emission target by 2050. This study highlights the need for the establishment in the Arabian Peninsula region of a ground-based observational network for greenhouse gas concentrations which is still lacking to date.

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Classification of the tight oil reservoir storage space in the Raoyang Sag of the Jizhong Depression in the Bohai Bay Basin, China

Chen

Zheng

et al. 2019

Energy Science & Engineering

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To improve the precision of predicting sweet spots in tight oil reservoirs, the classification of tight oil reservoir storage space is necessary. The tight oil reservoir in the lower submember of the first member of Shahejie Formation (Es1L) of the Raoyang Sag of the Jizhong Depression in the Bohai Bay Basin was selected as a case study for testing a new method of classifying tight oil reservoir storage space based on the results of porosity, permeability, and mercury intrusion porosimetry measurements. The pore‐throat size ranges were classified according to pore‐throat fractal characteristics and were divided into three groups: <100 nm, 100‐1000 nm, and >1000 nm. The oil‐bearing property of tight oil reservoir samples is closely related to the median and maximum pore‐throat radii. The inflection and intersection points in the trend lines of the pore volume percentages connected by different pore‐throat widths (<100 nm, 100‐1000 nm, and >1000 nm) vs the porosity and permeability values (which represent the relationship between the pore volume connectivity characteristics and porosity/permeability) were used as the basis for classifying the tight oil reservoir storage space. The tight oil reservoir storage space in the Es1L formation of the Raoyang Sag was divided into three categories, namely classes of III, II, and I. The porosity ranges of the three tight reservoir storage space classes are <5%, 5%‐8%, and 8%‐11%, respectively, and their permeability ranges are <0.04 mD, 0.04‐0.15 mD, and 0.15‐0.8 mD, respectively.

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The rudist buildup depositional model, reservoir architecture and development strategy of the cretaceous Sarvak formation of Southwest Iran

Cited by 23 publications

References 17 publications

Structural geology and petrophysics analysis to Injection wells of Mishrif Formation in Shuaiba Dome – Zubair Oil Field

Structural geology and petrophysics analysis to Injection wells of Mishrif Formation in Shuaiba Dome – Zubair Oil Field

Trends and variability in methane concentrations over the Southeastern Arabian Peninsula

Classification of the tight oil reservoir storage space in the Raoyang Sag of the Jizhong Depression in the Bohai Bay Basin, China

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