自生热压裂技术研究与应用

Self-generated Heat Fracturing Technology Research and Application

自生热压裂技术是针对储层渗透率低、压力系数低、返排率低、压裂措施后压裂液滞留地层中对储层造成伤害等地质特征,利用化学反应产生大量的气体和热量来减缓或解除液体的滞留,从而达到提高返排、减少储层伤害和提高工艺效果的目的。目前,国内在低压、低渗油气藏的改造中应用的自生热措施主要有CO2增能技术、N2增能技术、自生气热剂增能技术等工艺。

Self-generated heat fracturing technology for low permeability reservoirs,the pressure coefficient is low,back row of low,fracturing measures fracturing fluid retention in the reservoir formation damage and other geological features,the use of chemical reactions produce large amounts of gas and heat to reduce or remove fluid retention,back row so as to improve and reduce the effects of formation damage and improve the process purpose.At present,the low-pressure,low permeability reservoir from the transformation of the application of heat in the main measures to increase technology CO2,N2 Enabling technology,Self-generated gas and heat agent Enabling technology and others.