... integrity casing and cementing information centralizer ultrasonic log log analysis attenuation radial receiver amplitude travel time acoustic impedance horizontal well interpretation well logging cement depth control centralization cement evaluation guideline Introduction In recent...

... instrument petroleum engineer waveform transducer travel time analog signal Introduction Ultrasonic waves are transmitted by high frequency particle vibrations, and can be transmitted through air, water, and solids such as steel. Because ultrasonic wavelengths are on the same order of magnitude...

... acquisition plunger fall velocity upstream oil & gas gas gun acoustic signal spe 80891 acoustic pulse level instrument travel time shut-in period artificial lift system plunger lift valve fall velocity liquid installation petroleum engineer information passive afterflow period plunger...

... as desired. This paper describes special advanced techniques that can be used to determine the liquid level in wells with these unusual conditions. production control fluid level acoustic signal acoustic data production monitoring valve travel time liquid level reflection acoustic velocity...

... Abstract Lithology and physical rock properties of formations can be derived by utilizing acoustic logging systems. Compressive travel time from acoustic logs and shear travel time from full wave train logs are the two systems that are considered here. The ratio of shear travel time...