India's Hydrocarbon Outlook – 2022-2023

89 DGH: 3 DECADES OF UNLOCKING INDIA'S HYDROCARBON POTENTIAL Karewa is a Category III basin and it has an area of 6,671 sq. km. which is entirely onland. In the basin, 3 plays are present within Paleozoic, Mesozoic and Pliocene-Pleistocene. The intermontane Karewa Basin is located in Kashmir valley of northwestern Himalayas. It is an oval shaped basin between Pir-Panjal Range in the southwest and Zanskar Range to its northeast. Geoscientific data available is limited and the elements of petroleum system in the basin are largely speculative. The tectonically deformed Paleozoic-Mesozoic sequences of Kashmir Valley formed the basin floor. The Paleozoic- Mesozoic sequences are overlain by Plio- Pleistocene sediments. The Paleozoic, Mesozoic and Cenozoic Plays of the Potwar Basin of Pakistan are considered close analogues. The identified three plays viz. Paleozoic Play, Triassic Limestone Play and Plio-Pleistocene Play has six assessment units each. Prospectivity TheKarewa basin has a total hydrocarbon inplace of 6 MMTOE, which is entirely undiscovered and potential for intense exploration. The basin has been assessed for the first time. During 2017 Hydrocarbon Resource Assessment Study, Aerial Yield approach is used on analogy of Kohat Potwar Basin (Pakistan). 14,000m sedimentary thickness has been envisaged in the basin. Data from 9 shallow wells (100-200m) and 2 deep wells (1,30 1,600m) along with geological map, 2D refraction seismic (56 LKM along 16 profiles), GM data (1,009 stations) and geochemical survey (source rock analysis on 48 cutting samples and adsorbed gas analysis on soil samples) are used in the study. 24. KAREWA BASIN DGH Internal DGH Archive