China University of Petroleum

Dong Lin

Yuhuan Bu

Huajie Liu

Shenglai Guo

Qiang Wang

Chang Lu

Xinyang Guo

Chaohe Yang

Rui Ma

Xiang Feng

Changyou Xiang

Yongxiao Tuo

Xin Jin

Yibin Liu

Xiaobo Chen

Meihua Huo

An intra-layer reinforcement method, and a consolidation and reconstruction simulation experiment system and an evaluation method for a gas hydrate formation are provided. In the intra-layer reinforcement method, the formation reconstruction and fracturing grouting reinforcement technologies are combined; a fracturing grouting process is adopted to create fractures in the gas hydrate formation; and a consolidation liquid enters the fractures and penetrates into the formation through a pressure difference to form a reinforcement with a ribbed slab structure and a specified strength and permeability, which supports the formation to achieve collapse prevention and sand prevention. A specific consolidation and reconstruction simulation experiment system is adopted, where the necessary conditions for the generation and decomposition of a hydrate are tested, and the fracturing, formation consolidation, and cementing experiments are simulated to study a rational exploitation method of a gas hydrate, thereby solving the problem of sand production of the hydrate layer.

Intra-layer reinforcement method, and consolidation and reconstruction simulation experiment system and evaluation method for gas hydrate formation

A method for preparing titanium-containing molecular sieves include the following steps: irradiating a mixed solution containing a silicon source, a template and a titanium source by a light source containing ultraviolet light before crystallization, and then subjecting the mixed solution to crystallization and post-treatment to obtain the titanium-containing molecular sieve. In the method for preparing titanium-containing molecular sieve of the present invention, the mixed solution containing the silicon source, the template and the titanium source is treated with the ultraviolet light, and free radicals generated by the ultraviolet light can effectively dissociate titanium oligomers and accelerate the hydrolysis of the silicon source, and thus match the hydrolysis rate of a silicon-titanium precursor, thereby preventing a titanium monomer from self-polymerization to form non-framework titanium. Therefore, a titanium-containing molecular sieve that does not contain the non-framework titanium can be quickly prepared.

Method for preparing titanium silicon molecular sieve

Growing community of inventors

Qingdao, China

Dong Lin