摘要:
A pipe connector for connecting pipe together. In a preferred embodiment, the receptacle of the connector is mounted in the wall of a watertight underwater cellar and is provided with a cap on the interior of the cellar. A cable runs through this cap to a winch. The other end of the cable is connected to a pipeline lead plug which, when pulled into the receptacle, makes a sealing fit with its interior. The lead plug is connected to a pipeline lying on the ocean floor. Special stepped design of the receptacle and the plug prevents misalignment as the plug is pulled into the receptacle. A support ring surrounds the underwater cellar just below the receptacle for aiding in relieving the strain on the lead plug as it enters the receptacle.
摘要:
Many oil wells, especially in their latter stage of primary or secondary recovery, produce foamy crude oil. This crude oil will vary from mostly liquid to mostly foam. Pumping such a fluid is rather difficult. The main difficulty is due to reduced bulk density of the fluids. Thus, a constant r.p.m. submersible centrifugal pump has very low efficiency. This invention controls the r.p.m. as a function of the bulk density of the crude in the well bore. Various means of obtaining this are given.