Journal of Petroleum & Environmental Biotechnology

Reservoir mangement of mature field, case study western offshore India

Webinar on Global Oil and Gas Expo

November 23, 2021 | Webinar

Rakesh Kumar Vij

Pandit Deendayal Energy University

Scientific Tracks Abstracts: J Pet Environ Biotechnol

Abstract:

Major oil production of India is presently being obtained from the western offshore Indian fields. Among others, four major fields are contributing towards the oil and gas production. Most of them are matured in vintage as well as from reservoir point of view. They are heterogeneous, multi-layered limestone reservoir of tertiary age. Discovered, around 30-40 years back, and has been put on production since more than three decades. Management of these fields are difficult in view of the offshore environment. Heterogeneous nature of the reservoir and higher water production after crossing plateau period. The research will discuss the reservoir management practices being followed in one of the field having high lateral and vertical heterogeneity along with the presence of three gas caps and one sector being vuggy and kastified. Field is being managed meticulously by changing strategies from time to time and successfully produced more than 30% of oil in 30 years through water injection strategy. In recent past full field reservoir simulation model was prepared and history matched for future production and strategies put forward to reach to a recovery of around 40%. The field is production more than 90% water since one decade. Application of horizontal, multi-layered intelligent well, experience in alleviating the problems have been attempted and got few successes. Field is a classic example of managing a heterogeneous limestone reservoir in offshore environment and lesson learnt can be replicated in other similar fields across the globe.

Biography :

Rakesh Kumar Vij have 39 years of E&P Industry experience mainly in Reservoir Engineering, Sub-surface Earth Sciences, Research and Asset Management. His last posting in ONGC was Executive Director and Asset Manager of Jorhat Asset, Asam.He worked in various geographical locations in India and was responsible for Oil and Gas production management from Onshore, Offshore and implementation of EOR processes. He was mainly responsible for designing, first miscible EOR in Gandhar field of ONGC and immiscible gas injection EOR in Borholla field in Assam. Both the projects paying rich dividend to the company. He visited various countries across globe and have international exposure of MNC`s, International service providers and management institutes. He was first sub asset manager in ONGC and awarded for managing best oil mines from Honorable President of India. He has keen interest in academics, was faculty in ONGC academy, IIT ISM Dhanbad, MIIT Pune, MS University, Baroda and Dibrugarh University. He has published around 40 technical papers and attended/organized around 15 international conferences and was session chair person for many workshops. Key note speakers in various conferences in Malaysia, UAE, Bangkok, USA etc. He is founder SPE member in India since 1984 and responsible for SPE activities in India.