With the onslaught of an increasingly thriving economy, India is fast becoming a dominant global energy consumer. However, the South Asian country lacks the majority of the natural resources needed and therefore heavily relies on oil imports to meet its rising demand. As of January 2009, India contained 5.6 billion barrels of proven oil reserves, the second-largest amount in the Asia-Pacific region following China, and with vast amounts primarily located offshore. Additionally, India's proven natural gas reserves totaled 38 Tcf as of January 2009. Major domestic producers include state-owned ONGC and Reliance Industries.
Drilling fluids, also referred to as drilling mud, are added to the wellbore to facilitate the drilling process by suspending cuttings, controlling pressure, stabilizing exposed rock, providing buoyancy, and cooling the drill bit. Mud engineers ensure that the drilling mud that is used is made to the required specifications based on the expected geology. Drilling fluids can be water, oil, or synthetic-based, and mud engineers must take rock formation composition, as well as environmental impact, into account when making decisions about what drilling fluids might be best for any given well.