Integrated Approach to Coiled-Tubed Multistage Frac

01.03.2016

Fracking is a stimulation method for oil and gas wells that has been used for over 65 years. Fracking was first introduced in 1947; however, its commercial application started in 1999 at Barnett Shale field (USA). In the Soviet Union, the first hydraulic proppant fracturing was carried out in 1952. Other countries in Europe and Northern Africa subsequently employed hydraulic fracturing techniques.

Despite of challenging environment in the oil and gas industry, the market has experienced increased demand for multi-stage fracturing. As multi-stage fracking is one of the advanced and efficient technologies for horizontal wells, the number of which is growing, the demand for this method is growing in our country as well. Such reservoir treatment is absolutely necessary to stimulate production of new wells and extend the life of older wells in mature oil and gas fields.

In 2015 RITEK and Weatherford set a new record in the domestic oil and gas industry – they performed the first in Russia 16-stage hydraulic fracturing using coiled tubing in a single trip. The operation, which took place at the Vladimir Vinogradov field in the Khanty-Mansi autonomous district, was completed in a single trip that lasted 11 days.

The companies sought to hydraulically fracture a 1,424-m section of a well at a total vertical depth of 2,392 m. 960 tons of proppant was pumped, and each frac port was approximately 80 to 90 meters apart.

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