Implication of Transfer Zones in Rift Fault Propagation: Example from Cauvery Basin, Indian East Coast

Dasgupta, Swagato

doi:10.1007/978-3-319-99341-6_10

Cited by 5 publications

(2 citation statements)

References 38 publications

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“…Furthermore, Cauvery basin is a fault rift basin and holds signi cant reserves of oil and gas to a larger area (Mazumder et al 2019). This basin almost encompasses 25000 km 2 area and originated during the Late Jurassic to Early Cretaceous splitting of the Archean Indian basement and Australia-Antarctica plates (Dasgupta 2019;Veevers and Tewari 1995). Most importantly, Neyveli clay minerals are highly kaolinitic (Murthy et al 1950) and contain 91.04% of kaolinite deposits (Sinha and Guha 1990).…”

Section: Geological Settings Of Neyveli Lignite Fieldmentioning

confidence: 99%

Permeability Damage and Supercritical Fluid Storage in the Cauvery Basin Neyveli Lignite Bed Containing Kaolinite Deposits during Alternative Injection of Brine and CO2

Rajkumar

Antony

Mahalingam³

et al. 2020

Preprint

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A laboratory based investigation has been conducted on permeability damage and CO2 storage or retention in the lignite core during alternative injection of brine and supercritical carbon dioxide. Moreover, anthracite and bituminous coal beds were focused by the scientific community for effective production and reservoir formation damage study. But, now-a-days, lignite based coal bed methane reservoirs have attracted attention for productive exploitation and formation collapse investigation. Hence, for this purpose, a single component injection two phase (Brine + Supercritical CO2) coreflood test analysis under alternative injections were performed to investigate the occurrence of lignite structural collapse, permeability damage, injectivity decline and CO2 retention as well. The experimental study reveals that, due to gravity segregation there is a high rate of fluid saturation in lignite core and also, moderate level of heat transfer coefficient was also noted. Also, lignite core structural collapse under the brine and supercritical CO2 injection at different velocities resulted in huge volume of coal and kaolinite fines concentration. Kaolinite and coal fines migration resulted in pressure change and permeability decline in lignite core. The suspensions produced were passed to microstructural analysis and it revealed that kaolinite fine particle tends to possess a leaflet geometrical structure, which obstructed the cleats and restricted the fluid flow. Subsequently, hysteresis modelling (Pranesh 2018) was applied to this problem to quantify the amount of CO2 retention in lignite core. Additionally, statistical model, multiple linear regression was applied to this problem to validate the experimental model, which showed good agreement.

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Section: Geological Settings Of Neyveli Lignite Fieldmentioning

confidence: 99%

Permeability Damage and Supercritical Fluid Storage in the Cauvery Basin Neyveli Lignite Bed Containing Kaolinite Deposits during Alternative Injection of Brine and CO2

Rajkumar

Antony

Mahalingam³

et al. 2020

Preprint

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“…1). The oblique-slip separation between Antarctica and the Eastern margin of India took place along the Coromondal transform margin resulting in oblique trending horse-tail structures (Nemčok et al 2013(Nemčok et al , 2016Dasgupta 2019).…”

Section: Introductionmentioning

confidence: 99%

Post-drill geophysical characterization of two deep-water wells of Cauvery Basin, East Coast of India

Mishra¹,

Patidar

2022

J Petrol Explor Prod Technol

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The depth of the reservoir causes an increase in the degree of uncertainty in the prediction of reservoir quality. High frequency is suppressed with depth because Earth functions as a low-pass filter. The seismic amplitudes observed at various interfaces are influenced by spherical divergence, transmission losses, mode conversions, and inter-bed multiples. Seismic data have numerous essential components that must be thoroughly examined during hydrocarbon prospect identification and maturation, including post-critical reflections, events coherency (in near and far offsets), mode conversion, and interbed multiples. Seismic amplitudes are typically derived from 2D/3D seismic data and utilized directly or indirectly for reservoir interpretation and better prediction of subtle geological and geophysical information. To accurately depict subsurface geological features, stratigraphic architecture, and reservoir facies, it should be used in conjunction with the existing paleoenvironment data. When employed alone, the subsurface geophysical data may lead to erroneous interpretation of subsurface lithologies and inaccurate reservoir property predictions. Understanding these factors could help interpreters make better use of seismic data while maturing and de-risking the prospectivity. This study examines the post-drill geophysical characterization of two exploratory wells that were drilled in the deep-water area of the Cauvery Basin, East Coast of India. Analysis and correlation with a discovery well is done to understand the sediment depositional heterogeneity and corresponding seismic amplitude response, primarily for the cemented reservoir (dry well). To discover prospects and subsequently de-risk the existing prospect inventory, a dashboard checklist for in-depth study of seismic and well data has been developed. The top-down geophysical analytical approach that has been presented will aid in defining reservoir characteristics generally, estimating deliverability, and subsequently raising the geological probabilities and chance of success (COS) of any exploration project. The findings of this study allow critical analysis of seismic data to distinguish between softer/slower/possibly better reservoir rocks and hard/fast/tight rocks.

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A Review of Stratigraphy, Depositional Setting and Paleoclimate of the Mesozoic Basins of India

Dasgupta

2021

Mesozoic Stratigraphy of India

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Implication of Transfer Zones in Rift Fault Propagation: Example from Cauvery Basin, Indian East Coast

Cited by 5 publications

References 38 publications

Permeability Damage and Supercritical Fluid Storage in the Cauvery Basin Neyveli Lignite Bed Containing Kaolinite Deposits during Alternative Injection of Brine and CO2

Permeability Damage and Supercritical Fluid Storage in the Cauvery Basin Neyveli Lignite Bed Containing Kaolinite Deposits during Alternative Injection of Brine and CO2

Post-drill geophysical characterization of two deep-water wells of Cauvery Basin, East Coast of India

A Review of Stratigraphy, Depositional Setting and Paleoclimate of the Mesozoic Basins of India

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