What is perforation gun?
1. n. [Perforating] A device used to perforate oil and gas wells in preparation for production. Containing several shaped explosive charges, perforating guns are available in a range of sizes and configurations.
What is the perforating process?
Perforating is a process used to establish a flow path between the near reservoir and the wellbore. It normally involves initiating a hole from the wellbore through the casing and any cement sheath into the producing zone.
What types of perforation methods are used in well testing?
A well can be perforated three different ways:
- Overbalanced using a casing gun.
- Underbalanced using a tubing-conveyed gun.
- Underbalanced using a thru-tubing gun.
How does a perforating gun work?
The primary objective of a perforating gun is to provide effective flow communication between the cased wellbore and a productive reservoir. To achieve this, the perforating gun “punches” a pattern of perforation through the casing and cement sheath and into the productive formation.
What are the different types of perforation?
Types of Perforations
- Round Hole Perforation.
- Square Hole Perforation.
- Slot Hole Perforation. Staggered Row Perforation. Straight Row Perforation.
What are the types of well completion?
Completions can be divided into three categories: open hole completions, liner completions, and perforated casing completions. In most wells, conventional single perforated casing completions are used; however, multiple, alternate, or slim hole completions may be used under certain conditions.
What is perforation rate?
Results: The frequency of perforation was found to be 1 in 1400 for overall colonoscopies and 1 in 1000 for therapeutic colonoscopies. Varying perforation rates have been estimated for polypectomies, endoscopic mucosal resections, and endoscopic submucosal dissections.
How does a perforating gun system improve performance?
Improve perforating performance and reduce debris with pressure-tight steel tubes that protect the charges and gun components from the well environment. Negotiate production tubing with high-performance small-diameter capsule gun systems.
Why are hollow carrier and capsule perforating gun systems important?
Sign up for news Because maximized productivity from your well depends on getting the perforations right—located in the productive interval, correctly oriented, deep, and clean—our hollow carrier and capsule perforating gun systems are engineered for the wellbore environment, reservoir, and completion geometry.
What are the parts of a gun system?
The most critical part of the gun system to manufacture with maximum quality consistency is the shaped charge, which is assembled from four components: case, main explosive pellet, primer, and liner. We manufacture each charge component to exact tolerances to ensure that the liner collapses to form the jet according to the design.
What is minimum target penetration standard for perforating gun charges?
For routine manufacturing production runs, each charge must perform to a minimum target penetration standard related to API RP 19B Section 1. Improve perforating performance and reduce debris with pressure-tight steel tubes that protect the charges and gun components from the well environment.