 | This article may require cleanup to meet Misplaced Pages's quality standards. The specific problem is: Contains a lot of unlinked jargon. Should maybe be part of a larger article on drilling. Please help improve this article if you can. (June 2017) (Learn how and when to remove this message) |
 | This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Rate of penetration" – news · newspapers · books · scholar · JSTOR (May 2009) (Learn how and when to remove this message) |
In the drilling industry, the rate of penetration (ROP), also known as penetration rate or drill rate, is the speed at which a drill bit breaks the rock under it to deepen the borehole. It is normally measured in feet per minute or meters per hour, but sometimes it is expressed in minutes per foot.
Generally, ROP increases in fast drilling formation such as sandstone (positive drill break) and decreases in slow drilling formations such as shale (reverse break). ROP decreases in shale due to diagenesis and overburden stresses. Over pressured zones can give twice of ROP as expected which is an indicative of a well kick. Drillers need to stop and do the bottoms up.
See also
References
External resources
 | This industry-related article is a stub. You can help Misplaced Pages by expanding it. |