Thursday, July 18, 2013

Fracturing technology: the development of shale gas present "Gospel"

Fracturing technology: the development of shale gas present "Gospel" 
Widespread  shale gas ,  development potential, is an ideal replacement conventional oil and gas energy. Our research and on shale gas exploration and development in the theory and technology is still in the exploratory stage, a very important reason is that fracturing technology is not mature enough.  shale gas  has a low permeability and porosity, the development of shale gas requires the presence of natural fracture networks in order to produce natural gas, natural fracturing is to fracture network Unicom, creating gas migration channels. Fracturing technology is the use of a natural or induced fracture reservoir systems contain various additives used in fracturing fluid under high pressure into the formation, making the reservoir fracture network expansion and rely propped fracture  Proppant   thus improving reservoir fractures network systems, to increase production purposes. Shale gas fracturing technology with  Hydraulic fracturing  and re-fracturing. Fracturing is the use of water containing a drag reducing agent, clay stabilizer and surfactant necessary for the fracturing fluid of the water, place of the usual gel fracturing fluid, water U.S. shale fracturing wells is currently the most important stimulation . For this stage of China's shale gas development, the  hydraulic fracturing  technology is the development of appropriate technology transformation, for mining large length shale gas well, water can be used multistage fracturing. In general, the use of water fracturing technology once only after completion of geological reserves of shale mined about 10%, re-fracturing can make recovery increased by 8% to 10%, the real sent to shale gas development. " the Gospel. "

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