Applicability of the shape-factor concept for naturally fractured reservoirs and an alternative approach

Steiner, Christoph; Mittermeir, Georg M.

doi:10.1016/j.petrol.2017.04.009

Cited by 6 publications

(2 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As mentioned in the previous sections, the production performance of shale gas is highly dependent on the properties and the distribution of fractures, thus the accurate representation of the fracture network is a key issue for the numerical simulation of shale gas production. Early studies [104][105][106] usually assumed that, except for the main fractures created by hydraulic fracturing, secondary fractures can activate and connect with the natural fractures to form a continuous fracture network. Therefore, the dual-porosity model [104][105][106] has been the favored method to represent the fracture network so that all fractures are collectively treated by an equivalent continuum.…”

Section: Numerical Simulationmentioning

confidence: 99%

“…Early studies [104][105][106] usually assumed that, except for the main fractures created by hydraulic fracturing, secondary fractures can activate and connect with the natural fractures to form a continuous fracture network. Therefore, the dual-porosity model [104][105][106] has been the favored method to represent the fracture network so that all fractures are collectively treated by an equivalent continuum. The dual-porosity model allows for simulating fractured reservoirs using a simple orthogonal grid system, and is computationally efficient.…”

Section: Numerical Simulationmentioning

confidence: 99%

See 1 more Smart Citation

A Review of Macroscopic Modeling for Shale Gas Production: Gas Flow Mechanisms, Multiscale Transport, and Solution Techniques

Liu,

Zhang,

Zhang

et al. 2023

Processes

View full text Add to dashboard Cite

The boost of shale gas production in the last decade has reformed worldwide energy structure. The macroscale modeling of shale gas production becomes particularly important as the economic development of such resources relies on the deployment of expensive hydraulic fracturing and the reasonable planning of well schedules. A flood of literature was therefore published focused on accurately and efficiently simulating the production performance of shale gas and better accounting for the various geological features or flow mechanisms that control shale gas transport. In this regard, this paper presents a holistic review of the macroscopic modeling of gas transport in shale. The review is carried out from three important points of view, which are the modeling of the gas flow mechanisms, the representation of multiscale transport, and solution techniques for the mathematical models. Firstly, the importance of gas storage and flow mechanisms in shale is discussed, and the various theoretical models used to characterize these effects in the continuum scale are introduced. Then, based on the intricate pore structure and various pore types of shale gas reservoirs, this review summarizes the multiple-porosity models in the literature to represent multiscale gas transport, and discusses the applicability of each model. Finally, the numerical and analytical/semi-analytical approaches used to solve the macroscopic mathematical model governing shale gas production are reviewed, with a focus on the treatment of the complex fracture network formed after multistage hydraulic fracturing.

show abstract