FIELD: oil producing industry; well testing and completion facilities.
SUBSTANCE: proposed pump-ejector impulse well jet plant contains the following devices mounted on tubing string from bottom to top: hydroperforator, liner with intake funnel, packer and jet pump in housing of which active nozzle and mixing chamber with diffuser are installed and channel is made to supply active medium, channel to supply medium pumped out of well and stepped through channel. Provision is made for mounting locking insert with through channel by means of which active medium supply channel is overlapped or depression insert by means of which cross section of tubing string is closed, or sealing unit with axial channel through which logging cable is passed on which complex geophysical instrument is mounted. The latter is arranged in well with possibility of displacement relative to producing to producing formation on logging cable. Hydroperforator is installed for its remote separation from liner intake funnel. Packer is provided with central channel to pass complex geophysical instrument.
EFFECT: enlarged functional capabilities of plant, improved efficiency of surveying and treatment of bottom-hole formation zone.
3 dwg
