Investigation of Facies Types and Associations of Kuhlan Red Bed Formation in NW Yemen: A New Hypothesis for Origin and Depositional Environment

Al-Wosabi, Mohammed; Al-Mashaikie, Sa'ad Z.

doi:10.24200/squjs.vol11iss0pp11-38

Cited by 12 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The pre-rift succession in the Sayun–Masilah basin includes two formations, and from base to top are the Kuhlan and Shuqra formations. The Middle Jurassic Kuhlan Formation is mainly dominated by continental and transgressive marine sandstones ,, and underlain by the Precambrian basement rocks, with an unconformable content. The upper part of the Kuhlan Formation is followed by the carbonates of the middle–late Jurassic Shuqra formation, with conformability contact.…”

Section: Geological Features Of the Targeted Mixed Reservoirmentioning

confidence: 99%

CO₂ Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

et al. 2022

View full text Add to dashboard Cite

The knowledge on CO2 sequestration and CO2 enhanced oil recovery (CO2-EOR) in mature mixed and interbedded hydrocarbon reservoirs are limited. In this vein, the feasibility of CO2-water alternating gas (CO2-WAG) for coupling CO2 sequestration and CO2-EOR in a mature mixed sandstone-carbonate reservoir was investigated using the S1A reservoir. First, core sample analysis and scanning electron microscopy (SEM) were conducted to evaluate the reservoir characterization. Next, a geological model with dual porosity and permeability was developed and transferred to a reservoir simulation model, and 21-year field production data were utilized for history matching and constraining of the reservoir model. Then, continuous CO2 and CO2-WAG injection methods were simulated using newly developed and history-matched geo-models and compared to assess their CO2-EOR and CO2 storage mechanisms and determine their potential in a mixed sandstone-carbonate reservoir. The effect of the anisotropic permeability ratio and hysteresis on CO2 storage mechanisms was addressed in this work. The results indicate that the CO2-WAG scheme can yield a +3% oil recovery factor than the continuous CO2 injection method, and CO2-WAG injection can utilize up to 14 and 12% of the total CO2 injected for residual and solubility trappings, respectively, while a minimal 2.9 and 0.03% was utilized from continuous CO2 injection for residual and solubility trappings, respectively. The WAG ratio of 2:1 could yield a higher recovery factor and greater CO2 utilization for solubility and residual trappings in a mixed reservoir. In mixed and interbedded reservoirs, geological anisotropy can also strongly influence reservoir performance during the CO2-EOR process, in which higher values of the anisotropy ratio (K v/K h) in CO2-WAG can yield greater oil recovery and more CO2 storage; also, hysteresis has great impact on residual trapping. This study provides valuable insights into the potential of CO2-WAG for CO2 sequestration and CO2-EOR in mature mixed and interbedded reservoirs.

show abstract

Section: Geological Features Of the Targeted Mixed Reservoirmentioning

confidence: 99%

CO₂ Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

et al. 2022

View full text Add to dashboard Cite

show abstract

Hydrocarbon Generation Potential of the Organic-Rich Naifa Formation, Say’un–Masila Rift Basin, Yemen: Insights from Geochemical and Palynofacies Analyses

et al. 2019

View full text Add to dashboard Cite

Geochemical and physical properties of oils collected from several wells in the Shabwah depression, Yemen: implications of their characteristic organic matter input and maturity

et al. 2021

View full text Add to dashboard Cite

Investigation of Facies Types and Associations of Kuhlan Red Bed Formation in NW Yemen: A New Hypothesis for Origin and Depositional Environment

Abstract: ‫ﻜﺤﻼﻥ‬ ‫ﺘﻜﻭﻴﻥ‬ ‫ﻓﻲ‬ ‫ﺍﻟﺤﻤﺭﺍﺀ‬ ‫ﻟﻠﻁﺒﻘﺎﺕ‬ ‫ﺍﻟﻤﺼﺎﺤﺒﺔ‬ ‫ﺍﻟﺴﺤﻨﺎﺕ‬ ‫ﺍﺴﺘﻘﺼﺎﺀ‬

Cited by 12 publications

References 35 publications

CO₂ Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

CO₂ Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

Hydrocarbon Generation Potential of the Organic-Rich Naifa Formation, Say’un–Masila Rift Basin, Yemen: Insights from Geochemical and Palynofacies Analyses

Geochemical and physical properties of oils collected from several wells in the Shabwah depression, Yemen: implications of their characteristic organic matter input and maturity

Contact Info

Product

Resources

About

Investigation of Facies Types and Associations of Kuhlan Red Bed Formation in NW Yemen: A New Hypothesis for Origin and Depositional Environment

Abstract: ‫ﻜﺤﻼﻥ‬ ‫ﺘﻜﻭﻴﻥ‬ ‫ﻓﻲ‬ ‫ﺍﻟﺤﻤﺭﺍﺀ‬ ‫ﻟﻠﻁﺒﻘﺎﺕ‬ ‫ﺍﻟﻤﺼﺎﺤﺒﺔ‬ ‫ﺍﻟﺴﺤﻨﺎﺕ‬ ‫ﺍﺴﺘﻘﺼﺎﺀ‬

Cited by 12 publications

References 35 publications

CO2 Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

CO2 Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

Hydrocarbon Generation Potential of the Organic-Rich Naifa Formation, Say’un–Masila Rift Basin, Yemen: Insights from Geochemical and Palynofacies Analyses

Geochemical and physical properties of oils collected from several wells in the Shabwah depression, Yemen: implications of their characteristic organic matter input and maturity

Contact Info

Product

Resources

About

CO₂ Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

CO₂ Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield