DEVICE FOR FORMATION TESTING Russian patent published in 2002 - IPC

Abstract RU 2186967 C1

FIELD: well logging, particularly, testing of formations in ultradeep and horizontal wells. SUBSTANCE: device has pin with clamp sliding over endless screw groove of additional hollow rod. Said pin is installed in body and closed with sealing cylinder from external effect. Additional rod engageable with bushing of inlet valve is installed movably relative to body and rod with splined joint. Rod with splined joint has bead with radial holes in middle part. Differential bushing is fitted movably and sealed on rod with splined joint. EFFECT: higher reliability of design, extended field of device application due to provision of manufacture of formation testers of various diameters. 2 cl, 2 dwg

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RU 2 186 967 C1

Authors

Zamaraev A.N.

Dates

2002-08-10—Published

2001-01-03—Filed