METHOD FOR TESTING PRODUCING INTERVALS IN WELLS PROVIDED WITH ELECTRIC CENTRIFUGAL PUMPS AND DEVICE FOR ITS REALIZATION Russian patent published in 1995 - IPC

Abstract SU 1587991 A1

FIELD: gas and oil producing industry. SUBSTANCE: device has bottom-hole apparatus 4 secured to cable and electrical centrifugal pump 1 fastened to tubing 2. Located on hole bottom separately from bottom-hole apparatus 4 is jet-guide apparatus 3. The latter is made in form of two perforated pipes 7 and 8 inserted in each other for axial motion. Mounted on pipes 7 and 8 are packers 14. Electric centrifugal pump has deflector 25 and is suspended from tubing 2 by means of branch pipe 26. During repair, withdrawn from well are electric centrifugal pump 1 with tubing 2. Installed on well bottom is jet-guide apparatus 3. Lowered into well is electric centrifugal pump 1 on tubing 2. Bottom-hole apparatus 4 is lowered on cable 5. Pulling bottom-hole apparatus 4 along longitudinal hole 20 is undertaken to register parameters of separate intercalations. Measurement in steps is attained due to presence of packers. EFFECT: speeded up testing due to withdrawal of apparatus from well. 2 dwg

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SU 1 587 991 A1

Authors

Gabdullin T.G.

Shatunov A.S.

Khamadeev Eh.T.

Tsaregorodtsev A.A.

Dates

1995-09-20—Published

1988-04-25—Filed