DETACHABLE NATURAL GAS HYDRATE SAND GENERATION AND PREVENTION TEST APPARATUS, AND METHOD

摘要

Disclosed are a detachable natural gas hydrate sand generation and prevention test apparatus, and a method. The test apparatus comprises a reaction kettle system (100), a gas, water, and sand insertion system (200), a gas, water, and sand separation and measurement system (300), a low-temperature water bath fastener system (400), and a support and safety system (500). Reaction kettles in reaction kettle system (100) can be combined into different reaction kettles according to different experiment conditions and purposes. The reaction kettles include a left reaction kettle and a right reaction kettle, a secondary left reaction kettle and a secondary right reaction kettle, and a central reaction kettle, as well as a sealing lid. The reaction kettle system is designed to be combined flexibly. The combination of the left reaction kettle, the right reaction kettle, and the sealing lid implements a hydrate generation and decomposition reaction kettle having no sieve tube. The combination of the left reaction kettle and the right reaction kettle, reaction kettle accessories, the secondary left reaction kettle and the secondary right reaction kettle, and the central reaction kettle can simulate a series of sand generation and prevention tests such as single wells and double wells have no observation area, single wells and double wells having a single observation area, and single wells and double wells having double observation areas.