A measuring device for detection pf measurement signals during a penetrating movement of a penetrating member into a surface of a test object or during a sensing movement of the penetrating member on the surface of the test object. The measuring device includes a housing which accommodates a force generating device and on which a holding element is arranged remote from the force generating device, which holding element is movable relative to the housing at least in one direction along a longitudinal axis of the housing and which accommodates the penetrating member. The measuring device also includes at least one first measuring element for measuring the penetration depth of the penetrating member into the surface of the test object or a traversing movement of the penetrating member along the longitudinal axis relative to the housing during a sensing movement on the surface of the test object, wherein a transmission element is provided which extends between the force generating device and the penetrating member.

An elasticity measurement apparatus includes a lower layer structure having first and second openings, first and second deformable membranes covering the first and second openings to define first and second chamber and deformable by pressure within the first and second chambers respectively, a support layer structure on the lower layer structure to protrude and configured to support the first and second deformable membranes to be spaced apart from the elastic body, a driving portion to apply pressure within the first and second chambers to deform the first and second deformable membranes, and first and second deformation detecting portions to detect deformations of first and second deformable membranes. When the pressure within the first and second chambers is increased from a first pressure to a second pressure, the first deformable membrane is deformed with contacting the elastic body, while the second deformable membrane is deformed without contacting the elastic body.

A measuring device for detection pf measurement signals during a penetrating movement of a penetrating member into a surface of a test object or during a sensing movement of the penetrating member on the surface of the test object. The measuring device includes a housing which accommodates a force generating device and on which a holding element is arranged remote from the force generating device, which holding element is movable relative to the housing at least in one direction along a longitudinal axis of the housing and which accommodates the penetrating member. The measuring device also includes at least one first measuring element for measuring the penetration depth of the penetrating member into the surface of the test object or a traversing movement of the penetrating member along the longitudinal axis relative to the housing during a sensing movement on the surface of the test object, wherein a transmission element is provided which extends between the force generating device and the penetrating member.

An elasticity measurement apparatus includes a lower layer structure having first and second openings, first and second deformable membranes covering the first and second openings to define first and second chamber and deformable by pressure within the first and second chambers respectively, a support layer structure on the lower layer structure to protrude and configured to support the first and second deformable membranes to be spaced apart from the elastic body, a driving portion to apply pressure within the first and second chambers to deform the first and second deformable membranes, and first and second deformation detecting portions to detect deformations of first and second deformable membranes. When the pressure within the first and second chambers is increased from a first pressure to a second pressure, the first deformable membrane is deformed with contacting the elastic body, while the second deformable membrane is deformed without contacting the elastic body.

Apparatuses and methods for applying triaxial stresses to a core sample during perforation and flow testing. A core sample of rock is positioned within a fixture shell of an overburden stress apparatus, which is placed within a pressure vessel. The pressure vessel applies a vessel pressure to the overburden stress apparatus. The overburden stress apparatus contains a plurality of stress members which apply overburden stresses to the core sample along its three principal axes. The applied overburden stresses are resisted by a combination of the structural integrity of the overburden stress apparatus and the circumferential support applied to the overburden stress apparatus by the vessel pressure. With the overburden stresses applied, the core sample can undergo perforation testing, production testing, and injection testing.

A testing machine includes a base, at least a pair of columns joined to the base and a crosshead joined to the columns at a location spaced apart from the base. At least a pair of specimen holders are provided. A first specimen holder is supported by the crosshead and faces the base, and a second specimen holder is supported by the base, the base being that portion joined to each of the columns closest to the crosshead. An actuator connected in series between one of the specimen holders and the corresponding base or crosshead. A brace connected to each of the columns and spanning between the columns, the brace being connected to each of the columns at a location along a length thereof between the base and the crosshead.

A testing machine includes a base, at least a pair of columns joined to the base and a crosshead joined to the columns at a location spaced apart from the base. At least a pair of specimen holders are provided. A first specimen holder is supported by the crosshead and faces the base, and a second specimen holder is supported by the base, the base being that portion joined to each of the columns closest to the crosshead. An actuator connected in series between one of the specimen holders and the corresponding base or crosshead. A brace connected to each of the columns and spanning between the columns, the brace being connected to each of the columns at a location along a length thereof between the base and the crosshead.

A linear and rotary shock-testing machine including: a base; a shaft rotatably and translationally movable relative to the base; a test disc for holding one or more specimens to be tested, the test disc being rotatable with the shaft; one of a cam and cam follower fixed relative to the base; and an other of the cam and cam follower fixed to the test disc, wherein the shaft being driven to provide a rotational shock to the one or more test specimens; and the cam is shaped such that the cam follower follows the cam to urge the test disc into a translational motion while rotating to provide translational shock to the one or more specimens.

Apparatuses and methods for applying triaxial stresses to a core sample during perforation and flow testing. A core sample of rock is positioned within a fixture shell of an overburden stress apparatus, which is placed within a pressure vessel. The pressure vessel applies a vessel pressure to the overburden stress apparatus. The overburden stress apparatus contains a plurality of stress members which apply overburden stresses to the core sample along its three principal axes. The applied overburden stresses are resisted by a combination of the structural integrity of the overburden stress apparatus and the circumferential support applied to the overburden stress apparatus by the vessel pressure. With the overburden stresses applied, the core sample can undergo perforation testing, production testing, and injection testing.

The present invention corresponds to a machine for testing mechanical properties of hollow cylinders. The machine comprises an open container in which the hollow cylinder is arranged. Inside the hollow cylinder there is an expanding cylindrical membrane, which is connected to a pressure unit that supplies a pressurized fluid to the expanding membrane. A valve and a pressure sensor are located between the pressure unit and the expanding cylindrical membrane. A control and data capture system is connected to the pressure unit, the valve and the pressure sensor. The machine performs tensile and compression tests on hollow cylinders.