Perforation Fundamentals – Basic Knowledge about Perforation Used in Oil and Gas Industry

Perforation is a special operation to crease an efficient communication path between a wellbore and a reservoir by creating tunnels. The effective paths allow reservoir fluid to flow into the well with minimum pressure loss (less skin as much as possible).

Perforation (Courtesy of Schlumberger)

Perforation (Courtesy of Schlumberger)

The process of perforation involves lowering a perforating gun into a wellbore to a planned depth and energizing the gun to be safely fired. When perforating a well, shape charges are fired and then energy from the explosion will create tunnels through casing, and cement and then into a reservoir. Length and diameter of perforation hole are dependent on the objectives which will be discussed later. Figure 1 shows the cross sectional of perforation.

Figure 1 – Perforation Cross Section Ref:

Continue reading

Perforating For Inflow Performance In Natural Completions – SPE Distinguished Lecturer Program

This is the distinguished lecturer program supported by SPE in the topic of “Perforating For Inflow Performance In Natural Completions” By Mark S Brinsden. This presentation is very interesting  about inflow performace of the well and perforation.

What will you learn from this presentation?

  • Introduction
  • The Traditional Approach To Perforating
  • Measuring Perforator Performance
  • Modeling Perforators For Well Performance
  • Case History
  • Recent Advances In Perforating Technology
  • Implementing What We Have Learned

These images are samples of presentation.