What are the different types of packer?
Types of packers
- Retrievable tension packer.
- Retrievable compression packer with bypass.
- Retrievable tension/compression set—versatile landing.
- Retrievable hydraulic-set single-string packer.
- Dual-string packers.
- Permanent and retrievable sealbore packers.
What are the two types of packers?
There are three types of packers: mechanical and hydraulic set and permanent. All packers fall into one or a combination of these. Mechanical set packers are set by some form of tubing movement, usually a rotation or upward /downward motion.
What is a packer in an oil well?
Production packers are an integral part of the completion process of an oil or a gas well. These are devices that seal the tubing to casing annulus and force the produced fluids from the wellbore into the completion tubing.
What is permanent packer?
A permanent packer is a significant tool in the casing string. Saltel Xpandable AZIP is a permanent packer. Once fixed around the casing by welding or crimping, the packer becomes part of the casing to set in situ and provide a permanent and effective seal in the annulus.
What is an isolation packer?
The packer is built on a one-piece mandrel by welding or crimping, with no hidden internal connection. Both ends are fixed and protect the expandable sleeve while running into the well. Welded Zonal Isolation Packers are available in standard materials and provide life-of-well isolation in sweet environments.
What is the annulus in an oil well?
The annulus of an oil well or water well is any void between any piping, tubing or casing and the piping, tubing, or casing immediately surrounding it. It is named after the corresponding geometric concept.
What is completing a well?
Well completion is defined as a single operation involving the installation of production casing and equipment in order to bring the well into production from one or more zones (Perrin, 1999).
What does a downhole packer do?
The packer is a sealing device that isolates and contains produced fluids and pressures within the wellbore to protect the casing and other formations above or below the producing zone.
What is Maasp in drilling?
Maximum Allowable Annular Surface Pressure (MAASP) is the maximum annular pressure which will cause formation break down. MAASP can be in a static condition and a dynamic condition (circulating).
What is open hole well?
Open hole completion means that the oil reservoir is completely exposed during completion of a straight or horizontal well. There are two types of procedures for open hole completion. 1. After drilling to the top of the oil reservoir, the intermediate casing is run in and the well is cemented.