The Crack Propagation Behaviour of CO2 Fracturing Fluid in Unconventional Low Permeability Reservoirs: Factor Analysis and Mechanism Revelation
China University of Petroleum, Beijing · China University of Petroleum, East China · +1 more institution
Abstract
To circumvent the numerous deficiencies inherent to water-based fracturing fluids and the associated greenhouse effect, CO2 fracturing fluids are employed as a novel reservoir working fluid for reservoir reconstruction in unconventional oil fields. Herein, a mathematical model of CO2 fracturing crack propagation based on seepage–stress–damage coupling was constructed for analysing the effects of different drilling fluid components and reservoir parameters on the crack propagation behaviour of low permeability reservoirs. Additionally, the fracture expansion mechanism of CO2 fracturing fluid on low permeability reservoirs was elucidated through mechanical and chemical analysis. The findings demonstrated that…
Citation impact
- FWCI
- 59.67
- Percentile
- 100%
- References
- 71
Authors
8- QLQiang LiCorresponding
China University of Petroleum, Beijing, China University of Petroleum, East China, Henan Polytechnic University
- QLQiang Li
China University of Petroleum, Beijing, China University of Petroleum, East China, Henan Polytechnic University
- QLQingchao Li
China University of Petroleum, Beijing, China University of Petroleum, East China, Henan Polytechnic University
- QLQingchao LiCorresponding
China University of Petroleum, Beijing, China University of Petroleum, East China, Henan Polytechnic University
- HCHongqi Cao
China University of Petroleum, Beijing
Topics & keywords
- Mechanism (biology)
- Revelation
- Permeability (electromagnetism)
- Geology
- Fracturing fluid
- Petroleum engineering
- Hydraulic fracturing
- Mechanics