... ABSTRACT A combined nitrogen purge and helium leak-detection system has been developed to safely pressure test and commission oil and gas process equipment. The system is able to detect leaks of a much lower magnitude than conventional leak detection systems and it offers several advantages...

... conference casing and cementing wellhead indonesia government casing design upstream oil & gas leak asia government high rate gas well completion arun offshore south east asia conference packer arun completion learning experience INTRODUCTION The Arun Field is a giant natural gas...

... Although the mass spectrometer can detect leak rates down to 0.0002 cc/s (1 SCF in 5 years), an arbitrary limit of 0.05 cc/s (50 SCF per year) was established as the maximum acceptable leak rate for the North Rankin 'A' leak testing program. This limit was set to prevent excessive time being...

... by the backfill material. During the entire leaksearch, the pipeline pressure was kept between 1300 and 1600 psi (91 and 112 bar). RESULTS ABSTRACT In the early part of 1982 a leak detection survey on the 36 inch diameter 78 miles (126 km) long E11 submarine pipeline was carried cut with optical...

... of test apparatus and test procedures to simulate actual downhole stresses on tubulars. Mobil's intention was to fill the gap in the published data and to determine the cause of thread leaks in Aran wells. It was postulated that the leaks were the result of extreme compression and tensile forces acting...