Arcticgas making use of high-technology field development techniques
ST. PETERSBURG, Russia -- JSC Arcticgas—a subsidiary of Gazprom Neft and Novatek—has completed the first ever four-stage fracing of a horizontal well in the Yamalo-Nenets Autonomous Region, undertaken as part of the development of the Achimov deposits in Urengoyskoye field.
Results from work completed thus far indicate that production has exceeded two million cubic meters of gas and 770 tonnes of gas condensate per day—considerably in excess of predictions made on the basis of hydraulic fracturing of directional wells.
Complex three- and four-stage fracing has been undertaken at five wells at Urengoyskoye oil and gas field over the past six months. Work undertaken at the Achimov deposits is based on the hydro-dynamic model, optimizing cracking distribution and involving the pumping of high volumes of proppant agents at every stage in the horizontal part of the well.
The transition to multi-stage fracing at Arcticgas assets will lead to an increase in production volumes of gas and condensate, increasing the viability of developing these fields.
“The complexity of undertaking work like this is mainly due to the abnormally high initial reservoir pressure, the high reservoir temperature, the high concentration of condensate within the gas, and the low permeability of the formation. All of which requires the application of non-standard solutions and complex technical equipment. The experience gained, however, will allow us to increase the viability of operations throughout the company’s fields,” Arcticgas General Director Vladimir Kudrin said.
