Analysis of Production Enhancement Related to Optimization of Propped 
Hydraulic Fracturing in GAZPROM's Yamburskoe Arctic Gas Condensate Field, 
Russia

Butula, Kreso Kurt; Manière, Jérôme; Shandrygin, Alexander; Rudenko, D.; Zynchenko, Igor

doi:10.2523/94727-ms

Cited by 13 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The most comprehensive description and analysis of hydraulic fracturing features in the Yamal region were made by Butula et al (2005). Experience of thick formation stimulation in the Yamal area has shown that massive hydraulic fracturing treatments in range of 300 t of proppant and more are required to achieve optimal fracture geometry and establish good hydrodynamic connection between far areas of the reservoir and a wellbore.…”

Section: Hydraulic Fracturing Experience In the Regionmentioning

confidence: 99%

Channel Fracturing Improves Stimulation Efficiency by 30% in the Achimov Gas Condensate Formation

et al. 2014

View full text Add to dashboard Cite

In the Urengoyskoe field, Russia, the Achimov deposits are found at depths of nearly 4000 m and feature a more complex geological structure when compared to the Cenomanian and the Valanginian deposits. Furthermore, the Achimov deposits feature abnormally high formation pressure (over 600 bar) and are characterized by a multiphase state of hydrocarbons. To achieve economic well production, performing stimulation treatments in the Achimov formation of Urengoyskoe gas condensate field is required.Hydraulic fracturing proved to be a reliable method for increasing well productivity from the Achimov formation by a factor of 2.5; however, well completion restrictions allow for placing only small-size proppant mesh. Proppant fracturing treatments are conducted with high-polymer loading to ensure fluid stability at high formation temperatures, which leads to further reduction of fracture cleanup efficiency. These effects reduce the effective half-length and compromise the full production potential.New channel fracturing technology that creates open-flow channels inside the proppant pack was selected to improve production. Channels are created by pulsating proppant at surface. Pulses with proppant are separated by pulses of clean fluid, which creates proppant clusters inside the fracture, holding the walls of the fracture open. Fracture cleanup is conducted through channels without restrictions to fluid and polymer flowback. Thus, the channels improve effective fracture half-length and, consequently, gas condensate rates. The increased drainage area also improves hydrocarbon recovery.Previously in Russia, channel fracturing was used primarily in oil fields. The largest gas operator in Russia has initiated an extensive pilot campaign for channel fracturing in new areas of the Urengoyskoe field. To date, seven wells have been successfully completed with channel fracturing, leading to a significantly higher productivity of 30% versus offset conventionally stimulated wells and lower drawdown.

show abstract

Section: Hydraulic Fracturing Experience In the Regionmentioning

confidence: 99%

Channel Fracturing Improves Stimulation Efficiency by 30% in the Achimov Gas Condensate Formation

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Hydraulic fracturing can significantly improve the productivity of gas condensate wells [18][19][20] . However, in gas-condensate wells the productivity improvement is not as well understood as in dry-gas wells.…”

Section: Sensitivity Of Velocity Control Parameters In Fractured Wellmentioning

confidence: 99%

Deliverability Modeling of West Siberia Gas-Condensate Wells

Dobkine¹,

Dewenter²,

Yushkov

et al. 2012

All Days

View full text Add to dashboard Cite

Deliverability of low permeability gas-condensate wells decreases when the flowing pressure falls below the saturation pressure. To some extent the deliverability can be mitigated by high matrix gas velocity. Condensate is stripped off next to the well reducing the fluid saturation and improving the well inflow properties. Non-Darcy turbulence flow in turn decreases the well capacity. With well flowing data only, it is difficult to differentiate between the two effects that act in the opposite direction. Gas condensate relative permeability measurements were designed to distinguish between the Velocity Stripping and Non-Darcy flow effects. The experiments were modeled with the Eclipse compositional simulator and the velocity dependent parameters were adjusted to match the experimental data. With the core experiment derived parameters it was possible to uniquely match the well test results of a gas condensate well. The test interpretation is in accordance with the lab results. In the case investigated the Velocity Stripping effect is very significant and fully compensates the adverse Non Darcy flow effect. A sensitivity analysis has shown that both effects are important for an un-fractured well, but insignificant for a fractured well.

show abstract

“…26 Пласт Неоком имеет типичную проницаемость порядка 2-10 мД. 26 Пласт Неоком имеет типичную проницаемость порядка 2-10 мД.…”

Section: наunclassified

Designing Hydraulic Fractures In Russian Oil And Gas Fields To Accommodate Non-Darcy And Multiphase Flow-Theory And Field Examples (Russian)

Dedurin¹,

Majar²,

Voronkov³

et al. 2006

SPE Russian Oil and Gas Technical Conference and Exhibition

View full text Add to dashboard Cite

show abstract

Analysis of Production Enhancement Related to Optimization of Propped Hydraulic Fracturing in GAZPROM's Yamburskoe Arctic Gas Condensate Field, Russia

Cited by 13 publications

References 0 publications

Channel Fracturing Improves Stimulation Efficiency by 30% in the Achimov Gas Condensate Formation

Channel Fracturing Improves Stimulation Efficiency by 30% in the Achimov Gas Condensate Formation

Deliverability Modeling of West Siberia Gas-Condensate Wells

Designing Hydraulic Fractures In Russian Oil And Gas Fields To Accommodate Non-Darcy And Multiphase Flow-Theory And Field Examples (Russian)

Contact Info

Product

Resources

About