A tension and compression tester for a fracture stress test of a compact pipe sample having a crack portion formed thereon, comprises: a pair of holders each of which is configured to surround both ends of the compact pipe sample respectively such that the crack portion is interposed between both ends of the compact pipe; fixing portions each of which is disposed between the compact pipe sample and the holder to enhance fastening between the compact pipe sample and the holder; levers each of which is connected with the fixing portion and the holder to deliver tension or bending to the compact pipe sample; and separation preventing portions for fixing both ends of the holder and the lever with each other to prevent separation of the lever and the holder. Accordingly, the tester can conduct both tension and compression tests, while easily applying loads on the sample during the test.

A material testing system and method includes a testpiece, a test bed, and a data collector. The testpiece includes a body that extends along an axis and a hollow interior that is formed by the body. The test bed internally pressurizes the hollow interior of the testpiece. The data collector acquires data representing the testpiece.

A test system includes subsystems for application to a test sample of a range of conditions that might be encountered in an actual application. Conditions may include the presence of particular fluid environments, temperatures, pressures, and mechanical loads including tensile and bending loads. The system is particularly suited for elongated samples such as tubular products used in oil and gas applications, though a range of samples may be tested.

A device of determining pipes includes a memory unit, a processing unit and a communication interface, wherein the processing unit is connected to the memory unit and the communication interface. The memory unit has stored pipe names, reference pipe outside diameter values and orders of the pipe names corresponding to the reference pipe outside diameter values. The processing unit receives an outside diameter measuring data of a pipe, compares the outside diameter measuring data with the reference pipe outside diameter values, selects the pipe name corresponding to the reference pipe outside diameter value same as the outside diameter measuring data, and generates at least one the pipe name that matches the outside diameter measuring data according to the selected order of the pipe name. The communication interface outputs the pipe name that matches the outside diameter measuring data.

An electric-hydraulic Brinell hardness testing head and a portable electric-hydraulic Brinell hardness tester. A controller, a battery pack and a motor are mounted on a hydraulic integrated block, an electric plunger pump is mounted in the hydraulic integrated block, and a check valve is mounted in a cartridge valve seat, which are advantageous in that by controlling the motor-driven miniature electric plunger pump with the controller to realize durable force applying, stability and accuracy of test force within retention time are realized, so that the test principle, the test force accuracy, an indication error, and a repeatability error of hardness measurement results comply with relevant domestic and foreign standards; and have the characteristics of simple measurement operations, quick measurement process, high efficiency, accurate test results, and high reliability, thereby ensuring the basic requirements for miniaturization, lightweight, and on-site use of portable hardness testers.

A steel pipe collapse strength prediction model generation method, a steel pipe collapse strength prediction method, a steel pipe manufacturing characteristics determination method, and a steel pipe manufacturing method capable of highly accurately predicting the collapse strength of a steel pipe after forming or a coated steel pipe in consideration of the pipe-making strain during forming. Into a steel pipe collapse strength prediction model generated by the prediction model generation method, steel pipe manufacturing characteristics including the shape of a steel pipe to be predicted after forming, strength characteristics, and the pipe-making strain are input to predict the collapse strength after forming. Into a steel pipe collapse strength prediction model, steel pipe manufacturing characteristics including the shape of a coated steel pipe to be predicted after forming, strength characteristics, the pipe-making strain, and coating conditions are input to predict the collapse strength of the coated steel pipe.

A make-up/break-out evaluation method that makes it possible to evaluate the seizure resistance of a threaded joint for oil country tubular goods accurately without performing a test using a threaded joint with an actual length. When performing test with respect to the threaded joint for oil country tubular goods formed by attaching a pin lower portion to box upper portion with its axis directed vertically, a test pin formed by a pin shorter than an evaluation target pin used as test pin; a weight attached to test pin upper portion; mass of the weight is equal to or greater than a mass obtained by subtracting the test pin mass from the evaluation target pin mass; an initial set position for test pin is set where test pin five crests or of all test pin crests, whichever is greater, or more are exposed from the box upper end face.

A system for pipeline testing uses an electronics control module to monitor remote sensor data and compare the remote sensor data to control parameter input data that includes data indicating acceptable testing parameter ranges. In response to the comparison of the real time sensor data and the control parameter input data, the electronics control module generates various control signals used to control an automated fluid control system to regulate the pressure in the pipeline being tested and, if necessary, instigate an emergency shutdown of the test and to release all pressure from the section of pipe being tested. All test data is recorded, stored, and made available as needed/desired.

A water-rich high-geostress strike-slip fault simulating test chamber includes a first chamber and a second chamber. A flexible chamber is fixedly connected between the first chamber and the second chamber; the flexible chamber includes a plurality of flexible fault connecting units; each of the flexible fault connecting units includes framework flanges, a rubber ring, and a steel plate nested in the rubber ring; the framework flanges are respectively fixed at two axial sides of the rubber ring; and two adjacent flexible fault connecting units are connected through a bolt device fixed on two adjacent framework flanges. According to the present disclosure, the flexible chamber includes a plurality of flexible fault connecting units. The framework flanges are configured to connect the plurality of flexible fault connecting units. The rubber ring is able to realize axial tensile deformation and horizontal shear deformation, as well as a sealing function under pressure.