The Application Of High Energy Gas Fracture In The Low Permeable Reservoir

This article does a further research in the major characteristic and filtrate mechanism of low permeable layer, and does a general immediate vicinity of well bore pollution analysis separately in oil and water well. Combined with the mechanism of high energy gas fracture(HEGF) does a research in details, which includes the applicable lithology, grouping feature, implement technology and the combination technology with acidification, compound perforation and etc; through the introduction of explosive fracturing and hydraulic fracturing,comparing the boosting rate among this three treatments.On the base of hardly research in the Russian HEGF calculating model,according to the thermomechanics philosophy and the calculation of pressure difference,adding the adiabatic exponentγand safety coefficientεto the model,making the calculating process more steady.Changing this model into a business application software whose degree of ripeness is high,it can stiulatethe implement process of HEGF and obtain the changing rules of 9 parameters following time,such as pressure,width and length of fracture ;making the production comparison before and after HEGF treatment.In this article it introduces the major operating interface briefly.In order to certificate the dependability of this software,stimulating the treatment of two wells in four-one area Xinjiang oil and gas field branch company,the result of pressure peak is similar to the actual measurement value,the error range of simulation effectiveness evaluation is between 5%~8%,having a high calculation accuracy.This article is very meaningful,for example,it can help choosing simulation treatment in different well conditions,and assuring the explosive load in treatment.This software provides a faithful support for high energy gas fracture technology.