Petroleum source-rock potentials of the cretaceous transgressive-regressive sedimentary sequences of the Cauvery Basin

Chandra, Kuldeep; Philip, P.; Sridharan, P.; Chopra, V.S.; Rao, B. Veeranarayana; Saha, Pranab

doi:10.1016/0743-9547(91)90050-8

Cited by 9 publications

(9 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to similarities in its origin, geological structure and stratigraphy, many researchers have proposed that the Mannar Basin is a sub-basin of the Cauvery Basin (Chandra et al, 1991;Chari et al, 1995;Baillie et al, 2003;Premarathne, 2008;Rana et al, 2008;Rao et al, 2010). A chronostratigraphic comparison between the Cauvery and the Mannar Basins is shown in Fig.…”

Section: Background Geologymentioning

confidence: 99%

See 1 more Smart Citation

Burial and Thermal History Modelling of the Mannar Basin, Offshore Sri Lanka

Premarathne

Suzuki

Ratnayake

et al. 2016

Journal of Petroleum Geology

View full text Add to dashboard Cite

The Mannar Basin is a Late Jurassic – Neogene rift basin located in the Gulf of Mannar between India and Sri Lanka which developed during the break‐up of Gondwana. Water depths in the Gulf of Mannar are up to about 3000 m. The stratigraphy is about 4 km thick in the north of the Mannar Basin and more than 6 km thick in the south. The occurrence of an active petroleum system in the basin was confirmed in 2011 by two natural gas discoveries following the drilling of the Dorado and Barracuda wells, located in the Sri Lankan part of the Gulf. However potential hydrocarbon source rocks have not been recorded by any of the wells so far drilled, and the petroleum system is poorly known. In this study, basin modelling techniques and measured vitrinite reflectance data were used to reconstruct the thermal and burial history of the northern part of the Mannar Basin along a 2D profile. Bottom‐hole temperature measurements indicate that the present‐day geothermal gradient in the northern Mannar Basin is around 24.4 oC/km. Optimised present‐day heat flows in the northern part of the Mannar Basin are 30–40 mW/m2. The heat flow histories at the Pearl‐1 and Dorado‐North well locations were modelled using SIGMA‐2D software, assuming similar patterns of heat flow history. Maximum heat flows at the end of rifting (Maastrichtian) were estimated to be about 68–71 mW/m2. Maturity modelling places the Jurassic and/or Lower Cretaceous interval in the oil and gas generation windows, and source rocks of this age therefore probably generated the thermogenic gas found at the Dorado and Barracuda wells. If the source rocks are organic‐rich and oil‐ and gas‐prone, they may have generated economic volumes of hydrocarbons.

show abstract

Section: Background Geologymentioning

confidence: 99%

“…Rana et al, 2008;Rao et al, 2010) and the Cauvery Basin (e.g. Cantwell et al, 1978;Sastri et al, 1981;Chandra et al, 1991;Ramana et al, 1995), and from the regional geology. Additional information came from the Tabbowa, Aadigama and Pallama grabens in onshore Sri Lanka which contain Late Jurassic sedimentary successions (e.g.…”

Section: Lithologymentioning

confidence: 99%

Burial and Thermal History Modelling of the Mannar Basin, Offshore Sri Lanka

Premarathne

Suzuki

Ratnayake

et al. 2016

Journal of Petroleum Geology

View full text Add to dashboard Cite

show abstract

“…The underlying Cauvery Basin is known for its hydrocarbon prospects and the deltaic region has potential aquifer systems particularly along the palaeo-channels and levee deposits (Das, 1991). Majority of the research in Cauvery delta is confined to remote sensing imageries (e.g., Ramasamy, 2006a, b;Ramasamy et al, 2006), geochemical studies on surface sediments (e.g., Ramesh and Subramanian, 1993;Ramanathan et al, 1996;Rajamani, 2000, 2001;Singh and Rajamani, 2001a, b), tectonics and geodynamics (e.g., Valdiya, 2001) and sedimentological studies on deeper sediments for hydrocarbon potential (e.g., Kumar, 1983;Chandra et al, 1991). There is little known about the chronology of sediments in this region and the available ages for the upper part of the delta are mainly based on archaeological and radiocarbon dates which have the limitations of dating range.…”

Section: Introductionmentioning

confidence: 99%

Chronology of Cauvery Delta Sediments from Shallow Subsurface Cores Using Elevated-Temperature Post-IR IRSL Dating of Feldspar

et al. 2010

View full text Add to dashboard Cite

Abstract:We present the results of luminescence dating of sediments from two cores from the Cauvery Delta in south-east India. Since all natural quartz OSL signals except one sample were in saturation, the elevated temperature post-IR IRSL protocol for K-feldspar was applied to establish a chronology. Internal dose rates of K-feldspar grains were calculated from the measured internal content of potassium, uranium, thorium and rubidium in the bulk of K-feldspar grains using solution ICP-OES and ICP-MS analysis. A substantial scatter in single-aliquot D e values was observed which is most probably due to the effect of incomplete bleaching of fluvial sediments before burial. A minimum age model was applied to extract possible depositional ages. The study revealed that except an upper layer of Holocene sediments (< 5m), the majority of the upper ~50m of Cauvery delta sediments were deposited between marine isotope stage MIS-5 and MIS-10 or older. The feldspar luminescence ages also indicate the existence of a period of non deposition or erosion in the upper part of the cores.

show abstract

“…Black shales have been reported from several sedimentary basins of India, which include the Paleoproterozoic Cuddapah basin (Manikyamba et al 2008), Mesoproterozoic to Neoproterozoic Vindhyan basin (Banerjee et al 2006;Paikaray et al 2008;Bhaskar 2013), Permian Gondwana basin of the Krishna-Godavari valley (Rao 2001; Bhaskar 2013), Permian to Mesozoic Gondwana basins of the Damodar Valley (Bhaskar 2013;Bourah and Ganapathi 2015;Mani et al 2015;Tewari et al 2016), Permian-Triassic basins in the Himalayan Region (Mani et al 2014), Paleogene Cambay basin (Banerjee and Rao 1993;Bhaskar 2013), Paleogene of the Cauvery basin (Chandra et al 1991;Bhaskar 2013) and the Mesozoic-Paleogene rocks of the Kachchh basin (Dutta et al 2011;Sahay 2011;Mishra et al 2014;Arora et al 2015Arora et al , 2017. Thick and well-developed organic-rich black shales constitute distinct stratigraphic units of the onland Kachchh basin of western India (figure 1).…”

Section: Introductionmentioning

confidence: 99%

Characterization of organic carbon in black shales of the Kachchh basin, Gujarat, India

et al. 2018

View full text Add to dashboard Cite

Thirty-three black shale samples from four locations on the onland Kachchh basin, western India were analyzed to characterize organic carbon (OC), thermal maturity and to determine the hydrocarbon potential of the basin. Upper Jurassic black shales from the Jhuran Formation (Dhonsa and Kodki areas) are characterized by the presence of chlorite, halloysite, high T max , low OC, low hydrogen index and high oxygen index. These parameters indicate the OC as type IV kerogen, formed in a marine environment. The rocks attained thermal maturity possibly during Deccan volcanism. Early Eocene samples of the Naredi Formation (Naliya-Narayan Sarovar Road (NNSR) and the Matanomadh areas) are rich in TOC, smectite, chlorite and framboidal pyrite, but have low T max. These indicate deposition of sediments in a reducing condition, probably in a lagoonal/marsh/swamp environment. Organic carbon of the Naredi Formation of NNSR may be considered as immature type III to IV kerogen, prone to generate coal. Core samples from the Naredi Formation of the Matanomadh area show two fold distribution in terms of kerogen. Organic carbon of the upper section is immature type III to IV kerogen, but the lower section has type II to III kerogen having potential to generate oil and gas after attaining appropriate thermal maturity.

show abstract

Petroleum source-rock potentials of the cretaceous transgressive-regressive sedimentary sequences of the Cauvery Basin

Cited by 9 publications

References 3 publications

Burial and Thermal History Modelling of the Mannar Basin, Offshore Sri Lanka

Burial and Thermal History Modelling of the Mannar Basin, Offshore Sri Lanka

Chronology of Cauvery Delta Sediments from Shallow Subsurface Cores Using Elevated-Temperature Post-IR IRSL Dating of Feldspar

Characterization of organic carbon in black shales of the Kachchh basin, Gujarat, India

Contact Info

Product

Resources

About