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Estimation of Gas Composition and Cage Occupancies in CH4-C2H6 Hydrates by CP-MAS 13C NMR Technique
Gas hydrate Natural gas Gas composition Cage occupancy 13C NMR
2009/7/28
CP-MAS 13C NMR measurements were carried out on mixed gas hydrates containing CH4-C2H6. The changes in NMR chemical shift values for CH4 and C2H6 clearly corresponded to the structural changes in the...
Non-destructive Evaluation Method for Far-side Corrosion Type Flaws in Oil Storage Tank Bottom Floors Using the Magnetic Flux Leakage Technique
Non-destructive testing Magnetic leakage field Oil storage tank
2009/7/24
A quantitative procedure based on the magnetic flux leakage technique was proposed to evaluate the size of metal-loss type flaws such as corrosion pits in oil storage tank bottom floors. The approach...
Progress and transmission of the drilling and safety technique
safety risk assessment near miss accident
2009/4/14
Teikoku oil Co. Drilling Department has tried to improve and transmit drilling and safety technique. Three methods such as “Standard operation procedure”, “Risk Assessment” and “Near miss accident m...
Increased well productivity in the thin alternation reservoir as a result of geosteering technique in the Rang Dong Field
geosteering well placement thin laminated reservoir Vietnam
2009/4/7
Japan Vietnam Petroleum Co., Ltd. (JVPC) discovered oil accumulations in the Lower Miocene sandstones and the fractured granitic basement at the Rang Dong structure in Block 15-2, offshore S.R. Vietn...
Oxidation Stability of Lubricants Measured by a PDSC Technique
base oil engine oil oxidation stability pressure DSC
2010/8/11
A methodology was developed for evaluation of oxidation stability of base stocks and engine oils. Analytical procedures for both classes of lubricants were based on the ASTM standards D 6186 and/or E ...