Thursday, August 15, 2013

Unconventional reservoirs to replenish their energy needs overall development

Conventional oil and gas reservoirs are mainly medium and high permeability reservoirs, rather than conventional oil and gas reservoirs with low permeability reservoir is. With respect to the oil-water interface, conventional oil and gas reservoirs,  unconventional gas  reservoirs no oil-water interface, according to the U.S. Geological Survey in 1995 the latest oil and gas resource evaluation criteria, this reservoir is a continuous reservoir. United States, Canada and other countries proved oil and gas exploration and strengthen dense oil reservoir continuous technology research and new theories reserves, particularly its special distribution of oil and gas research and development is conducive to the distribution of reservoir seismic response, logging discrimination, oil and Gas drilling and test methods, development evaluation, well pattern, enhanced oil recovery and processes supporting other aspects of the targeted technology, help speed up a clear spatial distribution of oil and gas zone boundary,ceramic ball reserve scale, is conducive to the overall unconventional reservoirs studied overall deployment, the overall evaluation and overall development. As conventional oil and gas migration and accumulation of oil and gas reservoirs is the buoyancy force, rather than the conventional oil and gas reservoirs is the main driving force for migration and accumulation of hydrocarbon expansion pressure or stress. Conventional oil and gas reservoirs are mainly atmospheric fluid pressure, additional pressure water injection development of general practice. Instead of conventional oil and gas reservoirs by overpressure to atmospheric pressure to the negative end cyclicity. Overpressure dense low permeability oil and gas reservoirs to charge the main driver of migration, mainly from nearby source rocks in a large number of hydrocarbon produced during, and in the course of episodic expulsion passed to the reservoir,Ceramic proppant so achieve dense unconventional oil reservoirs utilized effectively, it is necessary to conduct an overall supplement energy development, at home and abroad is the most effective means of hydraulic fracturing. But at present, hydraulic fracturing is still facing a series of challenging puzzles, urgent research to crack.

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