Acoustic isolation devices for acoustic well logging tools

An acoustic isolation device (100) includes a sleeve (100) having a length, central axis along the length, a first end and a second end and an interior between the first end and second end, the sleeve (101) further comprising at least one resiliently deformable section (107) between the first end an...

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Bibliographische Detailangaben
Hauptverfasser:	Raphael Rogman, Weidong Liu
Format:	Patent
Sprache:	eng
Schlagworte:	DETECTING MASSES OR OBJECTS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	An acoustic isolation device (100) includes a sleeve (100) having a length, central axis along the length, a first end and a second end and an interior between the first end and second end, the sleeve (101) further comprising at least one resiliently deformable section (107) between the first end and the second end along a least a portion of the length of the sleeve (101) allowing the sleeve (101) to be deflected, and a tab stop structure (303) positioned along the length of the deformable section (107) of the sleeve (101) and having at least one tab stop (103) positioned in the sleeve (101), the cavity providing a gap (109) around one or more sides of the at least one tab stop (103), wherein the at least one tab stop (103) is movable within the cavity as the sleeve (101) is deformed but restricts the sleeve (101) from being deformed by more than a predetermined amount or estimated amount.