Material strength indexing system
AssigneeConocoPhillips Company
InventorsDavid M. Chancellor, Gangerico G. Ramos, Milton B. Enderlin
Life of this patent
Estimating the term…
Abstract
Apparatus and methods for estimating a physical property of a specimen, particularly the specimen strength, are provided. More specifically, a roller indenter comprising an indenting wheel and a force indicator is used to create an elongated trough in a specimen. The width of the trough is measured as a plurality of locations and correlated with a known standard to provide an estimate of the strength of the sample.
Claims32
A method for testing the strength of a specimen, said method comprising:
- (a) using a roller indenter to create an elongated trough in at least one specimen, said roller indenter comprising a force indicator and an indenting wheel coupled to said force indicator;
- (b) measuring the size of said trough at a plurality of locations;
- and
- prior to step (a), applying a film to the at least one specimen,
- said film comprising a bottom adhesive substrate, a flexible mat, and a top layer including a dye.
A method for testing the strength of a specimen, said method comprising:
- (a) using a roller indenter to create an elongated trough in at least one specimen, said roller indenter comprising a force indicator and an indenting wheel coupled to said force indicator;
- (b) measuring the size of said trough at a plurality of locations;
- and
- prior to step (a), applying a film to the at least one specimen,
- step (a) including cutting through said film with said roller indenter.
A method for testing the strength of a specimen, said method comprising:
- (a) using a roller indenter to create an elongated trough in at least one specimen, said roller indenter comprising a force indicator and an indenting wheel coupled to said force indicator;
- and
- (b) measuring the size of said trough at a plurality of locations,
- said roller indenter including an indenting wheel with a sharpened circumferential edge,
- said roller indenter including a marking device for applying a visible marking substance to the circumferential edge of the indenting wheel.
A method for testing the strength of a specimen, said method comprising:
- (a) using a roller indenter to create an elongated trough in at least one specimen, said roller indenter comprising a force indicator and an indenting wheel coupled to said force indicator;
- (b) measuring the size of said trough at a plurality of locations;
- and
- (c) applying a clear adhesive film over said elongated trough thereby preserving the trough for subsequent measurement.
A method for testing a specimen, said method comprising:
- (a) scoring at least one specimen with a roller indenter to create an elongated trough in said at least one specimen, said roller indenter comprising a force indicator and an indenting wheel coupled to said force indicator;
- (b) measuring the size of said trough at a plurality of locations;
- and
- (c) correlating said size measurements with at least one known standard to estimate a property of said specimen,
- prior to step (a), applying a film to the at least one specimen comprising a bottom adhesive substrate, a flexible mat, and a top layer including a dye.
A method for testing a specimen, said method comprising:
- (a) scoring at least one specimen with a roller indenter to create an elongated trough in said at least one specimen, said roller indenter comprising a force indicator and an indenting wheel coupled to said force indicator;
- (b) measuring the size of said trough at a plurality of locations;
- and
- (c) correlating said size measurements with at least one known standard to estimate a property of said specimen,
- said roller indenter including a marking device for applying a visible marking substance to the indenting wheel.
A roller indenter for testing the strength of a rock specimen, said indenter comprising:
- a force indicator;
- and
- an indenting wheel rotatably coupled to said force indicator, said indenting wheel presenting a sharpened circumferential edge,
- said force indicator including a casing having a biasing element disposed therein, and a handle slidably coupled to said casing, said handle acting to compress said biasing element when a force is applied to said handle in the same direction as the longitudinal axis of said indenter.
A roller indenter for testing the strength of a rock specimen, said indenter comprising:
- a force indicator;
- and
- an indenting wheel rotatably coupled to said force indicator, said indenting wheel presenting a sharpened circumferential edge,
- said force indicator providing an indication of the magnitude of a force imparted to the rock specimen by the indenting wheel,
- said force indicator including a graduated casing slidably coupled with a handle, the position of said handle on said casing providing an indication of the magnitude of a force imparted to the rock specimen by the indenting wheel.
A roller indenter for testing the strength of a rock specimen, said indenter comprising:
- a force indicator;
- and
- an indenting wheel rotatably coupled to said force indicator, said indenting wheel presenting a sharpened circumferential edge,
- said indenter further comprising a marking device for applying a visible marking substance to the circumferential edge of said indenting wheel.
Dependencies are inferred from the claim text.