## 1 Introduction  
Natural gas hydrate (NGH) is a high-quality energy source characterized as clean and green with a high energy density, abundant reserves, and extensive application prospects [1]. As a clean energy source, NGH holds significant potential for efficient energy supply to meet global demands. Its application in carbon capture and storage could mitigate climate change, promoting sustainable low-carbon development. Furthermore, NGH can facilitate seabed resource extraction, opening new opportunities for the energy industry and deep-sea technological innovation. The solid-fluidization mining process proposed by [PERSON] [2, 3] utilizes a mechanical crushing and fluidization mining technique that maintains the reservoir's temperature and pressure conditions, thereby preventing hydrate phase transitions and enhancing safety significantly. This method has already been successfully used in the Shenhu area of the South China Sea [3, 4, 5]. The primary micro-distribution forms of natural gas hydrates were initially proposed by [PERSON] [6] and later revised by [PERSON] [7]. These forms include the load bearing type, pore filling type, and cementation type, as shown in Figure 1. These distribution forms are highly correlated with the hydrate saturation [8, 9]. [PERSON] [1] analyzed the data from the fifth gas hydrate drilling expedition conducted by the Guangzhou Marine Geological Survey in 2018 on the northwestern slope of the South China Sea. They discovered that the hydrate saturation, based on degassing quantification, ranged from 0% to 52.9%, with an average of 14.355% [10], indicating that cementation is its primary form. According to [PERSON] [8; 9], when hydrate saturation is below 30%, the hydrate forms or partially adheres to a skeleton in the pore fluid. Therefore, during the solid-fluidization mining process, some hydrates exist as cementing bonds between sand particles, forming gas hydrate-bearing sediments (GHBSs) and returning to the mining cavity with sand from the separator underflow outlet. [PERSON] [11] observed the characteristics of hydrate particle collision, aggregation, and rupture in a methane and water mixture in an autoclave using high-speed photography and proposed a new physical model for the aggregation of hydrate particles. [PERSON] [12] proposed that hydrate particle aggregation accelerates the occurrence of hydrate blockage. A low-dose antiaggregation agent is commonly used to reduce the capillary forces between hydrate particles and suspend them in the fluid to prevent the adhesion and aggregation of the particles. [PERSON] [13] investigated the micro-distribution characteristics of the hydrate dissociation process in the South China Sea and found that breaking the sedimentary skeleton structure is the first step in hydrate dissociation. According to studies on hydrate physical properties [13], the difficulty of GHBS dissociation is closely related to the cementation state, and the destruction of the hydrate skeleton in GHBSs promotes hydrate dissociation and dispersion. Therefore, breaking the hydrate cementing bonds will promote the dissociation of weakly cemented hydrate particles and improve the hydrate collection rate. However, in practical mining processes, mechanical crushing and jet fluidization cannot completely sever the micro-connection between the hydrate and sand [10]. Some hydrates remain attached to sand particles in the form of liquid bridges. During the downhole in situ separation process, these hydrates are discharged along with the sand from the underflow outlet, refilling to the mining cavity and reducing the overall hydrate collection efficiency, thereby increasing the difficulty of achieving commercial-scale hydrate extraction. These findings support the perspective that breaking hydrate cementing bonds to promote the dissociation of weakly cemented hydrates can enhance the efficiency of hydrate recovery.