What s the perforation service in the oil field?

Answer 1

A perforating service is the act of perforating holes thru the steel caseing, thru the cement used to secure and seal the caseing to the earth, and out into the oil or gas producing zone. Perforating a well uses a wireline truck which contains a large spool of wire line or cable. Inside the wireline or cable are electrical wires that are used to run special equipment on board the truck to locate the oil zone. After the zone is located, this same wire line is used to lower the "perforating gun" into the caseing and locate it properly. After the proper location is established the electrical wires are used to detonate explosive charges that do the actual perforating of the caseing,cement and oil zone. These "perforations" or holes, are where the oil or gas enter the caseing to be produced at the surface. Usually the same company that dose the perforating of an oil well, will have other services that use the same cable, spool and electrical wireing. These services are known as "logging" and consist of electronic equipment that help the oil man determine if the well has penetrated an oil or gas zone. Measurements such as thickness, oil or water content of the zone, percent of permability etc. can be determined from these verious logs.