05.07.2009

To reduce pressure in a wellbore by moving pipe, wireline tools or rubber-cupped seals up the wellbore. If the pressure is reduced sufficiently, reservoir fluids may flow into the wellbore and towards the surface. Swabbing is generally considered harmful in drilling operations, because it can lead to kicks and wellbore stability problems. In production operations, however, the term is used to describe how the flow of reservoir hydrocarbons is initiated in some completed wells.

Swabbing is an operation by which the heavier fluid column from the wellbore is manually withdrawn from the well. This has the effect of lowering the hydrostatic pressure in the well and allowing potentially lighter fluid (hydrocarbons) from the rock to be produced through natural flow.

Sustainability is a broad concept referring to the need to balance the satisfaction of near-term interests with the protection of the interests of future generations, including their interest to a safe and healthy environment. Sustainable energy is the ability to meet the energy needs of the current population without compromising the energy needs of future generations. Those that promote this concept often advocate renewable energy sources, energy efficiency as well as an energy policy that leads to a cleaner environment and safe reliable energy technologies

Broad concept referring to the need to balance the satisfaction of near-term interests with the protection of the interests of future generations, including their interest to a safe and healthy environment. Sustainable energy development is supposed to meet the needs of the present without compromising the ability of future generations to meet their needs.

A well that has been capped off temporarily

An oil or gas field identified by a discovery well, but not being produced or developed