METHOD TO PREPARE WELL JET PLANT FOR LOGGING HORIZONTAL WELLS Russian patent published in 2005 - IPC

Abstract RU 2252338 C1

FIELD: oil producing industry; pumping facilities.

SUBSTANCE: method includes lowering of tubing with packer and support into well. Support is provided with bypass ports and seat. Then releasing of packer is carried out. Equipment is fitted on smooth flexible pipe on the ground. For this purpose lower end of flexible pipe is first passed through channel of sealing unit for displacing flexible pipe relative to sealing unit, and then pipe end is passed through stepped through channel and pumped out medium supply channel in jet pump housing, after which end piece is connected to lower end of smooth flexible pipe and instrument for surveying or treatment of producing formation is connected to lower end of flexible pipe, for instance, logging device or perforator and then sealing unit is arranged in stepped through channel of jet pump and flexible pipe with jet pump and instrument for surveyor treatment of producing formation is lowered through tubing into well. When jet pump reaches support, jet pump is fitted in seat in support after which smooth flexible pipe is lowered until instrument for surveying or treatment of producing formation reaches zone of surveying or treatment of producing formation. In process of lowering of smooth flexible pipe, recording of background values of physical parameters of rocks, for instance, temperature patterns, is carried out.

EFFECT: optimization of preparation of jet plant for operation, increased of jet plant at surveying and treatment of crooked and horizontal wells with open or cased hole.

2 cl, 1 dwg

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RU 2 252 338 C1

Authors

Khominets Zinovij Dmitrievich

Dates

2005-05-20Published

2004-02-02Filed