2014年9月29日星期一

Unconventional gas shale in unconventional day

Because conventional multi-layer fracturing proppant density, high degree of subsidence, resulting in the upper part of the small layer of the lack of effective support, for underground geotechnical engineering brigade to carry out a full filling cracks fracturing ceramic proppant manufacturers technology unconventional gas research, the technology is in critical pressure when adding crack density proppant, proppant in the fracture to prevent excessive settlement, so that all the pressure to open the reservoir to get unconventional gas effective support to ensure the well production. The technology recently conducted the first field trials in the state 28-24 wells, increasing pressure after oil 3 tons. Research preferred proppant is currently the lowest density used in fracturing proppant, consistent Oil fracturing proppant with the water density, can achieve full suspended in the unconventional gas fracturing fluid and proppant high intensity; most important feature of the process is laid proppant concentration is low, only conventional proppant concentration laid tenth, can greatly reduce the unconventional gas size of proppant use, reduce the amount of fracturing fluid, reduce production costs while also reducing the damage to the reservoir.Most proppant conductivity extensive shale gas production distribution, large thickness, and unconventional gas, which makes shale gas wells can be long-term in order to stabilize the rate of gas production. Unconventional gas, a kind of free or adsorbed state hiding in shale or clay formations in unconventional days. Unconventional gas and natural gas, are becoming agitated world market forces.

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