Hydraulic Fracturing

Hydraulic fracturing is one of the most effective ways of managing reservoirs to increase the production level of an oil field and enhance oil recovery factor (ORF).

Hydraulic Fracturing

Hydraulic fracturing means high-pressure injection of liquid mixed with proppant into the formation. Injection of this mixture leads to development of high-conductivity channels (fractures). These ensure additional influx of oil that would have never made its way into the well otherwise. In case of multistage hydraulic fracturing (MSHF), several fracturing operations are carried out in a horizontal wellbore for a significant expansion of well coverage.

Gazprom Neft started extensively using the fracturing technology at its oil fields in 2011. Today, this technology is used in more than 60% of horizontal wells drilled at the company’s oil fields. STC plans and provides support in almost all the hydraulic fracturing projects, especially the most complex ones.

High-tech fracturing is an individual process that guarantees the highest efficiency through selection of fracturing parameters for each specific well. STC specialists identify such parameters with the help of computer modeling. STC also develops proprietary software for fracturing efficiency forecasting.

Pursuing the Technological Strategy of Gazprom Neft, STC experts continuously work on improving the fracturing techniques. They develop a fracturing simulator that will help forecast productivity of this operation in Bazhen suite, look for and customize new and more efficient fracturing techniques, and test different scenarios of multistage fracturing in horizontal wells.

STC is always looking for ways to increase fracturing efficiency by using and testing new technologies and optimizing the existing processes. For example, cluster fracturing process with the use of silica sand helps reduce fracturing cost by 20%, while preserving efficiency of the process.