Characterization of hydrocarbon bearing proterozoic reservoir of Vindhyan Basin, India

IF 2.8 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Environmental Earth Sciences Pub Date : 2025-02-21 DOI:10.1007/s12665-025-12089-4

Rajesh Pandey, Sanjay Ojha

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引用次数: 0

Abstract

A commercial gas discovery has been confirmed from the Paleoproterozoic volcaniclastic Jardepahar Formation in the Son Valley sector, Vindhayan Basin. To better understand the characteristic of the pay zone and associated source rock, geochemical, sedimentological and source rock analysis were conducted on the cutting samples collected during the drilling of Hatta#D. Sedimentological, geochemical and electro-log signatures enabled the classification of the porcellanite of Jardepahar Formation into three chert-dominated (porcellanite) units and a dolomitic limestone unit. The middle unit, composed of calcareous bedded chert with carbonaceous matter and micro- to nanoscale fractures, has generated significant attention due to the hydrocarbon discovery in the Hatta field by the Oil and Natural Gas Corporation (ONGC) in central India. The textural characteristics of clasts indicates minimal transportation. Geochemical analysis of the middle unit indicates higher biological productivity and more favourable hydrocarbon source facies compared to the upper and lower units. The sediments of the Jardepahar Formation were derived from high-potassic felsic to intermediate volcanic source (s) associated with an active continental margin and were deposited in an anoxic environment. Trace elements analysis indicates the absence of biogenic fractions and minimal chemical alteration. The middle unit not only exhibits source rock potential but also act as reservoir, with the overlying dolomitic limestone serving as an effective top seal.

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来源期刊

Environmental Earth Sciences 环境科学-地球科学综合

CiteScore

5.10

自引率

3.60%

发文量

494

审稿时长

8.3 months

期刊介绍： Environmental Earth Sciences is an international multidisciplinary journal concerned with all aspects of interaction between humans, natural resources, ecosystems, special climates or unique geographic zones, and the earth: Water and soil contamination caused by waste management and disposal practices Environmental problems associated with transportation by land, air, or water Geological processes that may impact biosystems or humans Man-made or naturally occurring geological or hydrological hazards Environmental problems associated with the recovery of materials from the earth Environmental problems caused by extraction of minerals, coal, and ores, as well as oil and gas, water and alternative energy sources Environmental impacts of exploration and recultivation – Environmental impacts of hazardous materials Management of environmental data and information in data banks and information systems Dissemination of knowledge on techniques, methods, approaches and experiences to improve and remediate the environment In pursuit of these topics, the geoscientific disciplines are invited to contribute their knowledge and experience. Major disciplines include: hydrogeology, hydrochemistry, geochemistry, geophysics, engineering geology, remediation science, natural resources management, environmental climatology and biota, environmental geography, soil science and geomicrobiology.