.30 Meters Of Natural Gas Hydrate Fidelity Sampler Design

With oil and other non-renewable energy consumption, human eyes on the exploitation of the seabed resources-Gas Hydrate,it exists in the several kilometers seabed sediment, low-temperature and high pressure in the formation of solid ice-like. This paper mainly in the seabed sediment collected samples of gas hydrates, developed a set of gas hydrates accurate sampling system.The current gas hydrate sampling system does not have the sediment samples collected by packing effects, and the use of the principle of gravity Detroit sampling Sample had shallow depth.In this paper, the design of the sampler is expected to address these two issues.The theses includes six chapters.In chapter 1, first we introduced the background knowledge of gas hydrate, and then analyzed the samples of gas hydrate at home and abroad for the development of the status quo, the research concludes with a sense of purpose and main content.In chapter 2, the first introduction was the sampling on principle, then the various parts of the structure and size on the design and verification, in particular on three important components of the simulation. The thread connecting put in the two principles on the use of simulation thread check.In chapter 3, Sample the sampling process of sampling depth, resistance to change, with different sampling speed in heavy, early speed, at the end of the Cross-Harbour, fidelity diameter of the barrel under the influence of the modeling and simulation. Cones and fidelity to the bar stability analysis.In chapter 4, through soil sampling and role model test the resistance to the third chapter of the resistance to change simulation of a check and found the third chapter of the simulation are quite real.In chapter 5, Pressure on the system of compensation for the Selection accumulator study calculated by calculating selected for the accumulator models.The last chapter, we looks back to the whole thesis and puts forward the fruits of the study. At last, the further study direction is brought out.