Definition(s)
FIT
Application of pressure by superimposing a surface pressure on a fluid column in order to determine ability of a subsurface zone to withstand a certain pressure.
Source: ISO 16530-1:2017, Petroleum and natural gas industries — Well integrity – Part 1: Life cycle governance, First Edition, March 2017. Global Standards
FIT
Geometric relationship between parts.
Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards
FIT
Fit, when defined as the geometric relationship between parts, includes the tolerance criteria used during the design of a part and its mating parts. Fit, when defined as the state of being adjusted to or shaped for, includes the tolerance criteria used during the design of a seal and its mating parts.
Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards
Source: API SPEC 17D, Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment, Upstream Segment, Second Edition May 2011 (Errata September 2011). Global Standards
FIT
Geometric relationship between parts including the tolerance criteria used during the design of a part and its mating parts.
Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards
FIT
Geometric relationship between parts.
NOTE This includes the tolerance criteria used during the design of a part and its mating parts, including seals.
Source: API SPEC 14A, Specification for Subsurface Safety Valve Equipment, Eleventh Edition, October 2005 (Reaffirmed June 2012). Global Standards
FIT
1. The geometric relationship between parts. This would include the tolerance criteria
used during the design of a part and its mating parts.
2. The state of being adjusted to or shaped for, this would include the tolerance criteria used during the design of a seal and its mating parts.
Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global Standards
FIT
Formation integrity test.
Source: ISO 16530-1:2017, Petroleum and natural gas industries — Well integrity – Part 1: Life cycle governance, First Edition, March 2017. Global Standards
Source: API Bulletin 97, Well Construction Interface Document Guidelines, First Edition, December 2013. Global Standards
Source: API STD 65 – Part 2, Isolating Potential Flow Zones During Well Construction, Upstream Segment, Second Edition, December 2010. Global Standards
Source: Deep Water Well Control Guidlines. IADC Guidelines