Basin architecture and petroleum system of Krishna Godavari Basin, east coast of India

Gupta, S. K.

doi:10.1190/1.2221360

Cited by 95 publications

(66 citation statements)

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“…Fig. 1 Simplified geologic map of the area and location of wells (GERMI #1, GERMI #2 and GERMI #3) in Krishna-Godavari basin after (Gupta 2006) Results and discussions Depth ranges of well bore ranges from 2,300 to 5,100 m covering the Early Cretaceous, Paleocene and Early Eocene. Figure 5 shows the relationship between hydrogen index (HI) and T max values in these sediments from GERMI #1, 2 and 3 in KG Basin.…”

Section: Sampling and Methodologymentioning

confidence: 99%

“…The geochemical results are plotted and also interpreted on hydrocarbon generation using hydrogen Fig. 2 Tectonic map of Krishna-Godavari basin after (Gupta 2006). All the wells are in western Godavari sub-basin Fig.…”

Section: Sampling and Methodologymentioning

confidence: 99%

“…All the wells are in western Godavari sub-basin Fig. 3 General stratigraphy of the basin along with different oil and gas pools (Gupta 2006) J Petrol Explor Prod Technol (2013) 3:11-20 13 (Fig. 7).…”

Section: Sampling and Methodologymentioning

confidence: 99%

“…It is a proved petroliferous basin (Rai et al 1998;Biswas 1998) with an aerial extent of 15,000 km 2 on land and about 25,000 km 2 of adjoining offshore area up to 1,000 m isobaths line (Kumar 1983). The detailed general geology and tectonics of the basin has already been described (Gupta 2006;Rao 2001). The well-known major Godavari rift extends both onland and offshore.…”

Section: Introductionmentioning

confidence: 99%

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Source rock analysis, thermal maturation and hydrocarbon generation using rock-eval pyrolysis in parts of Krishna–Godavari basin, India: a case study

Ramachandran

Babu

Behera

et al. 2012

J Petrol Explor Prod Technol

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Among the various techniques available, the geochemical technique involving total organic carbon content (TOC) and rock-eval pyrolysis are regularly being used in hydrocarbon exploration. They provide information on the kerogen type, sedimentary environment, effective source rock identification and its thermal maturity. In the present study, core samples from three deep boreholes in Krishna-Godavari basin are analyzed to understand the hydrocarbon scenario in parts of the basin. Based on TOC and rock-eval pyrolysis significantly thick, indigenous immature to early mature gas-prone shales from borehole GERMI #1; while non-indigenous, early mature to mature oil and gas-prone shales from borehole GERMI #2 and GERMI #3. Interpreted hydrocarbon typing is supported by well-testing analysis. Break in vitrinite reflectance (R o ) profile is also observed; indicative of significant erosion during Late Cretaceous sedimentation due to tectonic uplift during this time and associated high heat flow causes for thermal maturation of overlying units.

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Section: Sampling and Methodologymentioning

confidence: 99%

Section: Sampling and Methodologymentioning

confidence: 99%

Section: Sampling and Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Source rock analysis, thermal maturation and hydrocarbon generation using rock-eval pyrolysis in parts of Krishna–Godavari basin, India: a case study

Ramachandran

Babu

Behera

et al. 2012

J Petrol Explor Prod Technol

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“…Archean crystalline basement and Upper Cretaceous sedimentary outcrops demarcate the basin margin. Out crops in the basin margin area includes Permean Chintalapudi sandstone, Cretaceous to Jurassic Gollapalli sandstone, Raghavapuram shale and Tirupati sandstone exposed around Dwaraka Tirumala area of West Godavari district 28 . The sandstones outcropped near Rajahmundry and Dowleswaram areas are red, felspathic, ferruginous and laterised of Miocene age, equivalent to the Ravva formation of offshore area.…”

Section: Geological Settingmentioning

confidence: 99%

Recognition of Hydrocarbon Microseepage Using Microbial and Adsorbed Soil Gas Indicators in the Petroliferous Region of Krishna-Godavari Basin, India

et al. 2017

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The present study aims at exploring the possible correlation between adsorbed light gaseous hydrocarbon distribution pattern and the hydrocarbon oxidizing microbes present in the sub-soil samples. To establish the role of the latter in identifying the upward migration of hydrocarbons, especially a known petroliferous Krishna-Godavari Basin has been investigated. Soil samples from oil and gas fields of Tatipaka

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Detection of overpressure zones and a statistical model for pore pressure estimation from well logs in the Krishna-Godavari Basin, India

Singha

Chatterjee

2014

Geochem. Geophys. Geosyst.

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Abnormally high pressures, measured by repeat formation tester (RFT) and detected by well log data from 10 wells in the Krishna-Godavari (K-G) Basin, occur in the Vadaparru Shale of Miocene and Raghavapuram Shale of Early Cretaceous age. Overpressures generated by disequilibrium compaction, and pore pressures have been estimated using the conventional Eaton sonic equation with an exponent of 3.0. The observed abnormal pore pressure gradient ranges from 11.85 to 13.10 MPa/km, whereas fracture pressure gradient varies from 17.40 to 19.78 MPa/km. The magnitude of vertical stress (S v ) has a gradient from 21.00 to 23.10 MPa/km. The minimum horizontal principal stress (S h ) magnitude is found to vary from 64 to 77% of the S v in normally pressured to overpressured sediments. A multiple linear regression model with a squared multiple correlation coefficient (R 2 ) of 0.94 is proposed for pore pressure prediction from gamma ray, density and sonic logs to focus on efficient drilling operations and to prevent borehole instability. The statistical model has been calibrated with the RFT data from five wells covering about 3400 sq. km area of the onshore K-G Basin. The model predicted pore pressure values are in close agreement with the actual RFT data for another four wells including a well in the offshore K-G Basin. Hence, the proposed regression model may be useful for predicting pore pressure from other well logs in the K-G Basin.

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Basin architecture and petroleum system of Krishna Godavari Basin, east coast of India

Cited by 95 publications

References 0 publications

Source rock analysis, thermal maturation and hydrocarbon generation using rock-eval pyrolysis in parts of Krishna–Godavari basin, India: a case study

Source rock analysis, thermal maturation and hydrocarbon generation using rock-eval pyrolysis in parts of Krishna–Godavari basin, India: a case study

Recognition of Hydrocarbon Microseepage Using Microbial and Adsorbed Soil Gas Indicators in the Petroliferous Region of Krishna-Godavari Basin, India

Detection of overpressure zones and a statistical model for pore pressure estimation from well logs in the Krishna-Godavari Basin, India

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