Gas hydrates are solid crystalline structures in which water cages enclose gas molecules in a unit volume equivalent to at least a hundred unit volumes of gas under the same conditions. Naturally occurring gas hydrates can be found in ocean sediments or the permafrost, and their existence constitutes an attractive future source of energy. Industrially, gas hydrates offer promising means for safe storage and transport of large volumes of gas, as well as produced water purification at the wellhead during natural gas production operations. Additionally, the utilization of gas hydrates is being explored as a feasible method for direct carbon sequestration. In this work, we report on the investigation of strategies for the synthesis of gas hydrate aggregates intended for applications as mentioned above. Gas hydrate aggregates of varying degree of consistency are synthesized in a two-phase, micro-emulsion injector reactor. Degrees of cohesiveness desired for specific applications can be controlled by the choice of guest gas and its composition in the hydrocarbon phase, and by the regulation of such operating parameters as pressure, temperature, reactant ratios and degree of emulsification. Results on hydrate synthesis dealing with ocean carbon sequestration and coal-bed methane produced water treatment at the wellhead are discussed.