Courtesy of weatherford.com

RITEK and Weatherford International plc have successfully fractured a 16-stage well using coiled tubing for the first time in Russia. The operation, which took place in the at V. 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. Each frac port was approximately 80 to 90 meters apart. The 16-stage hydraulic fracturing operation involved innovative technologies that helped to reduce well construction and completion time.

A compression-set, coiled-tubing-conveyed Weatherford ReelFracTM packer was used as well as mechanically controlled multistage frac sleeves. This equipment enables an unlimited number of stages to be stimulated from the bottom upwards in a single trip. After fracturing the first zone, the packer is released using an auto J-slot mechanism and the bottomhole assembly is moved to the next frac port, which is then opened. The packer is actuated below the newly opened port to isolate previously treated intervals.

Among the advantages of this technology is the use of mechanically controlled sleeves, which enables isolation of specific ports without plugging materials. These ports can be reopened later. The equipment also enables other operations to be performed in selected zones, including refracturing. The technology also eliminates restrictions to the outer diameter of logging tools, which facilitates well surveys and increases their informative value.

Weatherford is one of the largest multinational oilfield service companies providing innovative solutions, technology and services to the oil and gas industry. The Company operates in over 100 countries and has a network of approximately 1,350 locations, including manufacturing, service, research and development, and training facilities and employs approximately 42,800 people.

АО RITEK (part of LUKOIL Group) was established in 1992. The company holds E& P licenses for fields in Volgograd, Samara, Ulyanovsk and Astrakhan regions, Khanty-Mansy and Yamalo-Nenets Autonomous Districts, in Perm region, Tatarstan, Udmurtia and Kalmykia. Along with oil and gas production, one of the company’s key areas of focus is engineering and implementation of new technologies, machinery and equipment for hard-to-recover reserves development.

Source: weatherford.com