Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
Conditions of secondary fracture reorientation for cases of vertical and horizontal wells. / Martemyanov, Andrey; Shel, Egor; Bratov, Vladimir; Chebyshev, Igor; Paderin, Grigory; Bazyrov, Ildar.
Society of Petroleum Engineers - SPE Russian Petroleum Technology Conference 2019, RPTC 2019. Society of Petroleum Engineers, 2020. (Society of Petroleum Engineers - SPE Russian Petroleum Technology Conference 2019, RPTC 2019).Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
}
TY - GEN
T1 - Conditions of secondary fracture reorientation for cases of vertical and horizontal wells
AU - Martemyanov, Andrey
AU - Shel, Egor
AU - Bratov, Vladimir
AU - Chebyshev, Igor
AU - Paderin, Grigory
AU - Bazyrov, Ildar
N1 - Publisher Copyright: Copyright © 2019, Society of Petroleum Engineers
PY - 2020/1/1
Y1 - 2020/1/1
N2 - An approach to determine stress field near wellbore with existing hydraulic fracture accounting for rising pressure and fluid filtration along the crack has been developed. An estimations of secondary fracture initiation time near wellbore as well as moment of primary crack growth start have been produced. Factual data about mechanical rock properties, stress state and pore fluid pressure was used. It has been shown finally that reorientation of secondary fracture in the case of vertical well is improbable during reinjection. Calculations were made with various magnitude and rate of pumping pressure increasing, value of pore pressure inside formation and main tectonic stress ratio acting at infinity. Similar analysis in the case of horizontal well demonstrated several alternative mechanisms of secondary fracture initiation: simulteniously with existing crack growth new fractures along and orthogonal to well trajectory may appear. Which of type will become dominant depends on actual geomachanical conditions and primary fracture characteristics. Obtained estimations have been compared with field observations.
AB - An approach to determine stress field near wellbore with existing hydraulic fracture accounting for rising pressure and fluid filtration along the crack has been developed. An estimations of secondary fracture initiation time near wellbore as well as moment of primary crack growth start have been produced. Factual data about mechanical rock properties, stress state and pore fluid pressure was used. It has been shown finally that reorientation of secondary fracture in the case of vertical well is improbable during reinjection. Calculations were made with various magnitude and rate of pumping pressure increasing, value of pore pressure inside formation and main tectonic stress ratio acting at infinity. Similar analysis in the case of horizontal well demonstrated several alternative mechanisms of secondary fracture initiation: simulteniously with existing crack growth new fractures along and orthogonal to well trajectory may appear. Which of type will become dominant depends on actual geomachanical conditions and primary fracture characteristics. Obtained estimations have been compared with field observations.
KW - CO2 assisted steam flooding
KW - CO2 assisted steam gravity drainage
KW - Emulsion foam oil
KW - Steam breakthrough
KW - Steam flooding
UR - http://www.scopus.com/inward/record.url?scp=85084166892&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/d305d00d-9ff6-3440-a499-c2394439d8fb/
U2 - 10.2118/196767-ms
DO - 10.2118/196767-ms
M3 - Conference contribution
AN - SCOPUS:85084166892
T3 - Society of Petroleum Engineers - SPE Russian Petroleum Technology Conference 2019, RPTC 2019
BT - Society of Petroleum Engineers - SPE Russian Petroleum Technology Conference 2019, RPTC 2019
PB - Society of Petroleum Engineers
T2 - SPE Russian Petroleum Technology Conference 2019, RPTC 2019
Y2 - 22 October 2019 through 24 October 2019
ER -
ID: 51823249