Abstract
The temperature and pressure of ultra-deep gas well in Keshen Area of Tarim Oilfield are very high and perforation interval is long. It is very difficult to stimulate the reservoir using normal fracturing method. With geology analysis and reservoir evaluation and aiming at the difficulties of fracturing, appropriate stimulation proposal is given and fracturing operation is performed on site. In research, the complex fracturing method that main liquid is linked guar gel and assisted liquid is slippery water, clustering perforation and diverting technology with fiber is proposed, and the modifying operation on time according to fracture monitoring is needed. With the help of fiber diverting fracturing technology, multiple fracturing is performed successfully in ultra-deep well with high temperature and high pressure. The gas production of target well increases from 0.015 million m3/d to 0.21 million m3/d. It has a good significance for the stimulation of similar gas well in this area.
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