Validating the mathematical model of the Fracture Failure Assessment Diagram (FAD) Validating the mathematical model of the Fracture Failure Assessment Diagram (FAD) 2315 PRAC III Investigation of Brittle Burst FAD 2315 PRAC III Investigation of Brittle Burst FAD Tensile NACE A DCB Mini-Pipe Full Size Pipe Can we gather characterization test data on a pipe and input this information in the FAD equations and predict tubular Failure Pressure in an H 2 S Sour Environment? Can we gather characterization test data on a pipe and input this information in the FAD equations and predict tubular Failure Pressure in an H 2 S Sour Environment? HRC CVN

PRAC III : 3 Test Samples from One Pipe AB TCII Premium Threads Applied Heavy Duty End Caps with AB TCII Premium Threads Applied to the Test Sample With Make-up Torque Control UT Inspection (2% calibration notch) 20%x0.010”x42” milled notch passes thru min. wall at center 20%x0.010”x42” milled notch passes thru min. wall at center 54 in. Analysis fulfilled all API C110 chemical requirements.

PRAC III : 3 Test Samples from One Pipe Test Samples Ready for Shipmen

Tiny Pipe Testing The committee questioned the refresh rate of 3 times a week. With a 7% NACE-A Solution the H2S depletion rate may require a much higher refresh frequency. EDM OD Notch ~ 4 inches

From: "Ellis, Peter F" To: Xin Long, Date: 11/15/ :16 PM Subject: Result of the Tiny pipe H2S Depletion Study. Pete, Xin, On Tuesday, 11/13, we charged a fresh tiny pipe with NACE Solution D containing ppm H2S and locked it in. We collected and the contents of the tiny pipe 4.05 hours later and measured an H2S concentration of ppm, a decrease of 40% over 4 hours. We then charged the same tiny pipe with NACE Solution A saturated with H2S for hours. The tiny pipe was flushed with distilled water and charged with NACE Solution D containing ppm H2S. After 4.05 hours the H2S concentration was ppm, a decrease of 60%. We were not able to collect enough solution to measure both the H2S level and the pH. Peter F. Ellis II Engineering Team Leader, Corrosion Honeywell Corrosion Solutions Greens Crossing Blvd, Suite 700 Houston, TX 77067

Proposed Tiny Pipe

In a 100% Saturated NACE-A Solution What we need is Klimit for a 7% NACE-A Solution Tenaris