Protection Technology of Trial Gas Working Reservoir in Continental Facies Gas Depositin Northeast SICHUAN

In the oil and gas exploration and development process,only to reduce the reservoir of the damage,will it be possible to obtain greater overall economic efficiency.Reservoir damage is defined as oil and gas drilling,completion,stimulation construction,all the working fluid reservoir in the vicinity of the circumferential reduction caused by the phenomenon of reservoir capacity.The capacity to maintain an important condition for the reservoir is the rock permeability,the higher the permeability,fluid conductivity,the higher the reservoir capacity is higher.Therefore,reservoir protection is the core issue of how to maintain the permeability of the reservoir.Northeast continental gas buried deep,complex reservoir type,shale content,exploration operations in the construction process and the formation fluid into the well fluids are not compatible, easy to cause water sensitivity,salt sensitivity,pressure sensitivity and so on.In this paper,the construction of the test gas operating factors can cause formation damage and take appropriate protective measures are analyzed in detail the purpose of enhancing continental gas reservoir level of protection to ensure that gas production can be fully liberated.