Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Earth stresses
Patent
1986-02-03
1988-08-02
Myracle, Jerry W.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Earth stresses
73151, G01N 3324
Patent
active
047607416
ABSTRACT:
Apparatus for use in testing the mechanical behaviour and deformation characteristics of rocks and the like at various locations in a borehole comprises a pressure intensifier used in conjunction with a dilatometer head, the two being rigidly interconnected so as to be lowered into the borehole. The pressure intensifier comprises a cylindrical housing providing upper and lower cylinders, and a double action piston which provides a 6 to 1 differential between the input pressure side and the output pressure side. Pressure changes are measured by means of a pressure transducer, and volumetric changes are determined from measurements of the linear displacement of the piston. Such linear displacements are measured by means of a shaft encoder coupled to a motion translating device for translating linear displacement into rotary displacement.
REFERENCES:
patent: 2381929 (1945-08-01), Schlumberger
patent: 2539292 (1951-01-01), Anderson
patent: 2777425 (1957-01-01), Adams et al.
patent: 2959226 (1960-11-01), Blood
patent: 3095785 (1963-07-01), Cahill
patent: 3364373 (1968-01-01), Comes
patent: 3572114 (1971-03-01), Ruppenet et al.
patent: 3703926 (1972-11-01), Roeder
patent: 3858441 (1975-01-01), Comeau
patent: 3927652 (1975-12-01), O'Neill
patent: 3961524 (1976-06-01), de la Cruz
patent: 4196619 (1980-04-01), Collins
patent: 4461171 (1984-07-01), de la Cruz
patent: 4478129 (1984-10-01), Hannes et al.
patent: 4493614 (1985-01-01), Chu et al.
patent: 4594899 (1986-06-01), Henke et al.
Hughes Robin W.
Koopmans Robert
Myracle Jerry W.
Raevis Robert R.
LandOfFree
Borehole dilatometer with intensifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Borehole dilatometer with intensifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Borehole dilatometer with intensifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-706410