HYDRAULIC FRACTURING APPLICATION STUDY FOR STIMULATION OF MARGINAL AND LOW PERMEABILITY RESERVOIRS

A related hydraulic fracturing stimulation technology is supplied in this paper to decrease operating cost and improve productivity of low permeability reservoir in which there are not enough data and the reservoir geology condition is complex. While running the technology, the whole well formation interval is fractured orderly in steps, the formation is recognized during the fracturing operation at different step, and improves the overall level of hydraulic fracturing technology by use of previous study result. This technology has been used in No. 52 oil bearing block of Shengli Wangbei Oil Field. The result shows the way to deeply study formation is very effective, which is an inverse way to know the formation condition. In this way, many difficult developing reservoirs in which they are marginal and low permeability reservoirs can be developed in a high efficiency manner. Therefore it offered a lower cost and more operative method to develop above related reservoirs in the future.