Estimating productivity of horizontal wells with longitudinal hydraulic fractures

Authors: R.R.Ibatullin (TAL Oil Ltd., Canada, Calgary), V.G.Salimov, A.V. Nasybullin (TatNIPIneft, RF, Bugulma), O.V. Salimov (NAUKA OOO, RF, Bugulma)

Key words: hydraulic fracturing, horizontal wells, longitudinal fractures, productivity.

Efficient frontier for longitudinal fractures is defined, which shifts towards permeability increase with increase of reservoir fluid viscosity. Transverse fractures are more attractive in low-permeability reservoirs. For higher permeabilities, longitudinal fractures are favorable. The lower is the dimensionless conductivity of induced fracture, the more advantageous is to fracture horizontal well longitudinally. If creation of high dimensionless conductivity fracture is unfeasible, longitudinal fractures should be considered. The number of vertical fractured wells equivalent to a single horizontal well with transverse fractures for the conditions encountered in Tatarstan fields is approximately half the number of transverse fractures.
References
1. Economides M.J., Martin A.N., How to decide between horizontal
transverse, horizontal longitudinal and vertical fractured completion,
SPE 134424, 2010, pp. 19–22.
2. Valko P., Economides M.J., Performance of fractured horizontal wells
in high-permeability reservoirs, SPE 31149, 1996, pp. 14–15.
3. Valko P., Economides M.J., Performance of a longitudinally fractured
horizontal well, SPE 31050, 1996, pp. 11–19.
4. Villegas M.E., Wattenbarger R.A., Valko P., Economides M.J., Performance of longitudinally fractured horizontal wells in high-permeability
anisotropic formations, SPE 36453, 1996.
5. Mukherjee H., Economides M.J., A parametric comparison of horizontal
and vertical well performance, SPE 18303, 1991, pp. 209–216 

Key words: hydraulic fracturing, horizontal wells, longitudinal fractures, productivity.

Efficient frontier for longitudinal fractures is defined, which shifts towards permeability increase with increase of reservoir fluid viscosity. Transverse fractures are more attractive in low-permeability reservoirs. For higher permeabilities, longitudinal fractures are favorable. The lower is the dimensionless conductivity of induced fracture, the more advantageous is to fracture horizontal well longitudinally. If creation of high dimensionless conductivity fracture is unfeasible, longitudinal fractures should be considered. The number of vertical fractured wells equivalent to a single horizontal well with transverse fractures for the conditions encountered in Tatarstan fields is approximately half the number of transverse fractures.
References
1. Economides M.J., Martin A.N., How to decide between horizontal
transverse, horizontal longitudinal and vertical fractured completion,
SPE 134424, 2010, pp. 19–22.
2. Valko P., Economides M.J., Performance of fractured horizontal wells
in high-permeability reservoirs, SPE 31149, 1996, pp. 14–15.
3. Valko P., Economides M.J., Performance of a longitudinally fractured
horizontal well, SPE 31050, 1996, pp. 11–19.
4. Villegas M.E., Wattenbarger R.A., Valko P., Economides M.J., Performance of longitudinally fractured horizontal wells in high-permeability
anisotropic formations, SPE 36453, 1996.
5. Mukherjee H., Economides M.J., A parametric comparison of horizontal
and vertical well performance, SPE 18303, 1991, pp. 209–216 


Attention!
To buy the complete text of article (a format - PDF) or to read the material which is in open access only the authorized visitors of the website can. .

Mobile applications

Read our magazine on mobile devices

Загрузить в Google play

Press Releases

11.10.2021
07.10.2021
29.09.2021
Конкурс на соискание молодежной премии имени академика И.М. Губкина