Abstract
The volume fracturing technology has been the key technology to develop extra-low permeability, ultra-low permeability, and even the tight oil and gas reservoirs. Based on the real case of a volume fracturing horizontal well in Jilin Oilfield, the microseismic (MS) technology was used to monitor the effect of volume fracturing, and the MS monitoring results were analyzed. Using the data of fracturing operation and MS monitoring, a single-well numerical simulation model with stimulated reservoir volume (SRV) was built, to evaluate the volume fracturing effect of horizontal wells. The results of the study show that the MS monitoring technology can predict the fracture distribution, size, and direction of the volume fracturing horizontal well. The volume fracturing technology of horizontal well can enhance the initial oil yield of single wells and cumulative oil production. Both of the volume fracturing and CO2 miscible flooding technologies are effective methods to develop tight oil reservoirs.
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