round-hole perforating

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• Perforation — For perforations in an oil well, see Perforation (oil well). For perforation in medicine and surgery, see Organ perforation. A perforation is a small hole in a thin material or web. There is usually more than one perforation in an organized… …   Wikipedia

• Perforator — A perforator is a machine for perforating thin materials such as paper, card and sometimes even plastic and metal.Microperforation refers to the placement of holes or apertures in a material. Microperforation can be inserted in a web with needles …   Wikipedia

• Completion (oil and gas wells) — This article is about the oil or gas well completion. For other uses of completion, see Completion (disambiguation) In petroleum production, completion is the process of making a well ready for production (or injection). This principally involves …   Wikipedia

• Terminal ballistics — Terminal ballistics, a sub field of ballistics, is the study of the behavior of a projectile when it hits its target. It is often referred to as stopping power when dealing with human or other living targets. Terminal ballistics is as relevant… …   Wikipedia

• List of oil field acronyms — Contents 1 # 2 A 3 B 4 C …   Wikipedia

• Blanking and piercing — Blanking versus piercing Blanking and piercing are shearing processes in which a punch and die are used to modify webs. The tooling and processes are the same between the two, only the terminology is different: in blanking the punched out piece… …   Wikipedia

• Trepanning — Trepanation redirects here. For other uses, see Trepanation (disambiguation). A detail from The Extraction of the Stone of Madness , a painting by Hieronymus Bosch depicting trepanation (c.1488 1516) Trepanning, also known as trephination,… …   Wikipedia

• Perfin — A perfin (a contraction of PERForated INitials ), also called SPIFS (a contraction of Stamps Perforated by Initials of Firms and Societies ), is a pattern of tiny holes punched through a postage stamp. Organizations used perforating machines to… …   Wikipedia

• printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …   Universalium