Abstract:
A method of increasing the useful seismic energy in a generated primary pulse and at least one article for carrying out the method is disclosed. The article comprises a pneumatic sound generator, as an air gun for generating a primary seismic pulse and an openended elongated cylinder surrounding the air gun and having an end opening are nearest the air gun exhaust ports greater than the area of said ports for shaping the primary pulse so that its dominate frequency will be lowered, placing more of the energy in the useful seismic frequency range, resulting in greater penetration of the seismic signal within the sedimentary section.
Abstract:
A method and at least one steam aspirating gas flare for carrying out the method are disclosed for smokeless burning of undesired gas. The flare includes a steam control valve responsive to a new very low gas flow detector utilizing a knockout drum water seal, a by-pass line with an orifice run, and a water level switch for supplying an empirically set fixed flow of steam to the flare for ensuring a smokeless flame prior to the gas flow rate reaching a measurable rate. A full range flare including all other gas flows includes also several steam flow valves, each valve being empirically set to provide the proper steam-to-gas ratios throughout its respective range responsive to several corresponding gas flow detectors for ensuring a smokeless flare as the flare gas flow varies from the immeasurable ranges through the measurable ranges of the detectors.
Abstract:
Disclosed is a system for minimizing distortion in the continuity of the input energy of a seismic energy generator. In a hydraulically operated oscillatory seismic generator, the continuity of the seismic energy input to the ground is affected by the valve operation. The present system employs a differential pumping system to control the pressure input to the hydraulic seismic generator without requiring valves thereby eliminating distortion due to valves.
Abstract:
A heavy-duty coupling unit that incorporates a sensitive torquemeasuring device. It has provision for being mounted on the end of a torque-load transmitting shaft, and it has a folded-back structure so as to accommodate a gear or the like for a laterally coupled drive.
Abstract:
THIS INVENTION CONCERNS A PROCESS FOR PREPARING LINEAR FATTY ACIDS AND ESTERS FROM ALPHA-OLEFINS AND CARBON MONOXIDE IN THE PRESENCE OF HOMOGENEOUS PLATINUM COMPLEXES.
Abstract:
Vicinal nitroalkylperoxy nitrates are prepared and inhibited from thermally decomposing at temperatures of about 25* to 40* C. by continually contacting the nitrate with dinitrogen tetroxide.
Abstract:
A METHOD OF DISPOSING OF CERTAIN PROCESS EFFLUENT WASTE STREAMS BY INJECTING THEM INTO SUBSTERRANEAN FORMATIONS WHICH ENTAILS INHIBITING THE FORMATION OF SOLID PRECIPITATES WHICH PLUG THE SUBTERRANEAN FORMATION. THE METHOD OF INHIBITING THE FORMATION OF PRECIPITATES INVOLVES LOWERING THE PH OF THE MIXED STREAMS AND OPTIONALLY REMOVING ANY ORGANIC PHASE CREATED THEREBY BEFORE INJECTION.
Abstract:
A METHOD FOR PREPARAING LACTAMS BY THE STEPS OF (1) CLEAVING AND ESTERIFYING A CYCLIC ALPHA-NITROKETONE WITH AN ALCOHOL TO FORM AN ALKYL OMEGA-NITROESTER AND (2) CATALYST HYDROGENATING AND CYCLIZING THE NITROESTER TO A LACTAM.
Abstract:
A mineral oil composition of improved viscosity, pour depressing and detergent-dispersant properties comprising as a major component a mineral oil of lubricating viscosity and a viscosity index improving amount of an interpolymer of dialkylaminoalkyl methacrylate, styrene or alkyl substituted styrene, C10-C14 alkyl methacrylate and C16-C20 alkyl methacrylate.
Abstract:
Improved lubricating oils are prepared by simultaneously solvent refining-deasphalting a vacuum residuum, hydrocracking the product and fractionating the hydrocracked oil to remove material having a viscosity SUS at 210* F of at least 300.