METHOD OF RESEARCH OF RUNNING WELLS AND DEVICE FOR ITS EMBODIMENT Russian patent published in 2001 - IPC

Abstract RU 2172826 C2

FIELD: oil producing industry, particularly, geophysical and hydrodynamic researches of running wells. SUBSTANCE: method includes measurement and registration of oil production rate and bottom-hole pressure by self-contained downhole instrument. Instrument is run into bottom-hole under conditions of free falling and retrieve from well by flow of ascending fluid acting on packer opened at required moment. Device for realization of claimed method has flexible sealing member with two branch pipes overlapping the side windows in instrument body. Packer drive is made in form of spring with retainer holding the packer in folded state up to moment of operation of electromagnetic triggering lock freeing the retainer. EFFECT: higher efficiency and reduced expenditures in research of running wells. 2 cl, 2 dwg

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RU 2 172 826 C2

Authors

Gabdullin T.G.

Gabdullin Sh.T.

Korzhenevskij A.G.

Tomus Ju.B.

Dates

2001-08-27—Published

1999-02-09—Filed