Patent ID: 6962197
Filing Date: 2005-11-08
Classification: F04F

Abstract:
1. A well jet pump assembly, which comprises a packer, a flow string with a support in which drainage windows are made and on which a case including a jet pump is installed, the case comprising a channel communicating with said drainage windows for removing a medium mixture from the jet pump into a well annular space, a channel for supplying a production fluid to the jet pump, and a channel for supplying a power fluid to the throat of the jet pump, and the case further comprising a sealing assembly being arranged in the channel for supplying a well production fluid to the jet pump, the sealing assembly comprising a through channel with the possibility of leading, through the latter and the channel for supplying the production fluid, a logging cable for the purpose of installing in the well, below the jet pump, instrumentation and equipment with the possibility of moving the same along the well bore, characterized in that the sealing assembly is made with the possibility of installing in it, with closing the through channel, a tool for delivering the case with the jet pump into the well bore and removing it therefrom, and in the lower part of the jet pump case a threaded hole is made for attaching autonomous instrumentation to the case, the outer diameter D of the case being at least 2.0 mm less than the least inner diameter D 1 of the flow string arranged above the support.