The invention provides a method and device for measuring the elasticity of hardened cement for cementing of oil-gas wells. The measurement method comprises: determining the loading and unloading rates of the hardened cement; determining the maximum loading on the hardened cement; determining the experimental temperature and the experimental pressure of the hardened cement; establishing a stress-strain curve for the hardened cement; and describing the elasticity of the hardened cement with the degree of strain recovery of the hardened cement in different cycles, and describing the mechanic integrity of the hardened cement with the degree of damage to the hardened cement in different cycles. The invention further provides a device for measuring the elasticity of hardened cement for cementing of oil-gas wells. The measurement method and device of the present invention provide a universal comparing platform for research on hardened cement modification as well as examination of domestic and foreign special cement slurry systems, which is of great significance in evaluation of well hole integrity and well life.

A powder quality control system includes a powder container, a piston, and at least one sensor. The powder container is configured to contain a powder sample. The piston is configured to compact the powder sample in the powder container. The at least one sensor is configured to measure at least one parameter when the piston compacts the powder sample to facilitate determining a powder quality measurement for the powder sample.

Embodiments of the present disclosure provide a test apparatus for pile-soil interface shear mechanical properties, comprising a support device, a pressure device, a membrane box, and a thrust device; wherein the support device comprises a bottom plate, a top plate, a support beam, and a plurality of bracing struts, the bottom plate and the top plate being both provided with a through-hole for inserting a model pile. The test apparatus for pile-soil interface shear mechanical properties according to the present disclosure has a simple structure and is easy to operate, which may accurately simulate mechanical properties of pile soils having different types of piled foundations in actual works, thereby facilitating researches on pile-soil testing.

A funnel control device is fixed on a shear box or respective cells in various soil mechanics/dynamics testing devices, and the funnel control device enables to produce soil samples to be tested by discharging a soil through a funnel into a sample preparation mold at a given axis and rate. The funnel control device includes at least one supporting body for being placed on the soil mechanics/dynamics testing device, at least one holder, wherein the at least one holder is provided on the at least one supporting body to be movable in vertical axis and the funnel is placed on the at least one holder, at least one driving member, wherein the at least one driving member is located in or on the at least one supporting body and is used for moving the at least one holder in the vertical axis.

An apparatus for use in testing the bulk crush characteristics of pellet materials. The apparatus constructed such that opening and closing can be conducted without complex binding and unbinding requirements. The apparatus may be used in combination with a universal testing machine fitted with compression test plates and a load cell capable of measuring force in a vertical direction.

A device for measuring strength and strain softening parameters of a saturated clay sample based on full-flow penetration belongs to the technical field of geotechnical, geological and environmental research. The device mainly comprises two parts: an overlying pressure loading system and a full-flow penetration system. The present invention mainly aims at the problem of incomplete backflow of the soil in the measurement of soil strength and strain softening parameters with a full-flow penetrometer for saturated clay, and applies the working principle of a traditional consolidometer to vertically pressurize a soil sample to ensure the backflow of the soil, thereby improving the applicability of the full-flow penetrometer in the measurement aspect of the soil strength and the strain softening parameters and having important practical value for test research and marine engineering design.

A material testing system can be used for measuring material properties. The system can include an inner cell and an outer cell that cooperate to at least partially define a first internal volume. The inner cell can at least partially define a second volume therein and is configured to receive a material sample. A first plurality of cameras that are configured to detect visible light surround the circumference of the inner cell. A second plurality of cameras that are configured to detect infrared light surround the circumference of the inner cell. A thermocouple can provide a reference temperature to calibrate thermal data from the second plurality of cameras. The first plurality of cameras, the second plurality of cameras, and the thermocouple can provide data to a computing device. A pattern on the material sample can enable the computing device to track movement of discrete points on the material.

An apparatus and method for determining the hardness of a granular material, comprises a base plate member, a sample cup for holding the granular material, an upper plate member, a crusher assembly and a crusher hammer release mechanism. The base plate member includes an upper surface with a recess for holding the sample cup. The upper plate member is positioned above and separated from the base plate member utilizing at least one separator post. The crusher assembly includes a crusher shaft, a crusher weight, a crusher hammer and a linear roller bearing having a retaining ring configured to slidably engage the crusher shaft through a conduit with the crusher weight and the crusher hammer positioned above and below the upper plate member respectively. The crusher hammer release mechanism includes a pair of levers operably connected to a latch cable having a latch pin that runs through a compression spring.

A device for measuring strength and strain softening parameters of a saturated clay sample based on full-flow penetration belongs to the technical field of geotechnical, geological and environmental research. The device mainly comprises two parts: an overlying pressure loading system and a full-flow penetration system. The present invention mainly aims at the problem of incomplete backflow of the soil in the measurement of soil strength and strain softening parameters with a full-flow penetrometer for saturated clay, and applies the working principle of a traditional consolidometer to vertically pressurize a soil sample to ensure the backflow of the soil, thereby improving the applicability of the full-flow penetrometer in the measurement aspect of the soil strength and the strain softening parameters and having important practical value for test research and marine engineering design.

A monolithic precursor test coupon includes a first grip portion, a second grip portion, and an intermediate portion, interconnecting the first grip portion and the second grip portion. The monolithic precursor test coupon also includes runners, directly interconnecting the first grip portion and the second grip portion and not directly connected to the intermediate portion. The first grip portion, the second grip portion, the intermediate portion, and the runners are composed of a substance that comprises metal powder and that is in a green state.