Test Pressure and Working Pressure Tests Explained
API Spec 6A and 16A require manufacturers to conduct hydrostatic body proof tests of individual units of pressure containing equipment. This…
Disassembly (Break-Out) of Made-Up Flanges
Before beginning any wellhead flange disassembly it pays to consider the following safety questions: Use diligence in…
Installing and Removing Tap End Studs in Tapped Holes
The bolts installed in tapped holes in API studded flange faces should always have double end, or tap end stud,…
Pressure Cut Well Head Flange (Connection Seal Failure)
An undetected leak in a well head flange connection can lead to complete loss of pressure control….
API Studded Tee/Elbow Weight Reference Chart
API 6ACross/Tee/ElbowRun X Outlet(s) Size CrossWeightLbs. TeeWeightLbs. ElbowWeightLbs. 2-1/16″ 2M X2-1/16″ 2M 98 98 97 2-9/16″ 2M…
API Flange Weight Reference Chart
Includes API Spec 6A current, discontinued, and Obsolete flanges API 6A Flange Size Weld Neck Weight Lbs….
Segmented Flange Slide Rule Program
FLANGES FOR SURFACE WELL HEAD DUAL COMPLETION APPLICATIONS IDENTIFY SEGMENTED FLANGES 7 nominal size Segmented (Dual) Flanges…
About API 16A Segmented Dual Completion Flanges
Segmented Dual Completion Flanges They have one flat side with either 5 or 6 bolt holes. These…
About API Spec 17D SS and SV Flanges
API Spec 17D, 1st. Edition dated October 30, 1992 marked the introduction of an API “Specification for Subsea…
A Brief History of Flanges
Today API Spec 6A and MSS SP-44 specify all flanges commonly used in surface drilling and production….