Transient Pressure Behavior of Composite Reservoirs with Moving Boundaries

1999 ◽  
Author(s):  
Noaman A.F. El-Khatib
Keyword(s):  
Moving Boundaries ◽  
Transient Pressure ◽  
Pressure Behavior

Transient Pressure Behavior of Dual-Lateral Wells

SPE Journal ◽  
1998 ◽  
Vol 3 (02) ◽  
pp. 181-190 ◽  
Author(s):  
Erdal Ozkan ◽  
Turhan Yildiz ◽  
Fikri Kuchuk
Keyword(s):  
Transient Pressure ◽  
Pressure Behavior

Transient Pressure Behavior of Acid Fracturing Well in Tidal Flat Carbonate Reservoirs

2018 ◽  
Author(s):  
Wenyang Shi ◽  
Yuedong Yao ◽  
Shiqing Cheng ◽  
He Li ◽  
Naichao Feng ◽  
...  
Keyword(s):  
Tidal Flat ◽  
Carbonate Reservoirs ◽  
Transient Pressure ◽  
Acid Fracturing ◽  
Pressure Behavior

scholarly journals Transient Pressure Behavior of Complex Fracture Networks in Unconventional Reservoirs

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Gou Feifei ◽  
Liu Chuanxi ◽  
Ren Zongxiao ◽  
Qu Zhan ◽  
Wang Sukai ◽  
...  
Keyword(s):  
Fracture Network ◽  
Unconventional Reservoirs ◽  
Transitional Flow ◽  
Natural Fractures ◽  
Fracture Networks ◽  
Transient Pressure ◽  
Horizontal Drilling ◽  
Pressure Behavior ◽  
Complex Fracture ◽  
Complex Fracture Network

Unconventional resources have been successfully exploited with technological advancements in horizontal-drilling and multistage hydraulic-fracturing, especially in North America. Due to preexisting natural fractures and the presence of stress isotropy, several complex fracture networks can be generated during fracturing operations in unconventional reservoirs. Using the DVS method, a semianalytical model was created to analyze the transient pressure behavior of a complex fracture network in which hydraulic and natural fractures interconnect with inclined angles. In this model, the complex fracture network can be divided into a proper number of segments. With this approach, we are able to focus on a detailed description of the network properties, such as the complex geometry and varying conductivity of the fracture. The accuracy of the new model was demonstrated by ECLIPSE. Using this method, we defined six flow patterns: linear flow, fracture interference flow, transitional flow, biradial flow, pseudoradial flow, and boundary response flow. A sensitivity analysis was conducted to analyze each of these flow regimes. This work provides a useful tool for reservoir engineers for fracture designing as well as estimating the performance of a complex fracture network.

scholarly journals Semianalytical Coupled Model of Transient Pressure Behavior for Horizontal Well with Complex Fracture Networks in Tight Oil Reservoirs

2019 ◽  
Vol 2019 ◽  
pp. 1-12
Author(s):  
Ren Zongxiao ◽  
Du Kun ◽  
Shi Junfeng ◽  
Liu Wenqiang ◽  
Qu Zhan ◽  
...  
Keyword(s):  
Horizontal Well ◽  
Variable Mass ◽  
Fracture Network ◽  
Fracture Networks ◽  
Transient Pressure ◽  
Pressure Behavior ◽  
Complex Fracture ◽  
Complex Fracture Network ◽  
Horizontal Wellbore ◽  
Seepage Model

Due to a large number of natural fractures in tight oil reservoir, many complex fracture networks are generated during fracturing operation. There are five kinds of flow media in the reservoir: “matrix, natural fracture, hydraulic fracture network, perforation hole, and horizontal wellbore”. How to establish the seepage model of liquid in multiscale medium is a challenging problem. Firstly, this paper establishes the dual medium seepage model based on source function theory, principle of superposition, and Laplace transformation and then uses the “star-triangle” transform method to establish the transient pressure behavior model in the complex fracture network. After that, perforating seepage model and variable mass flow in horizontal wellbore were established. Finally, continuous condition was used to couple the seepage model of dual medium seepage model, transient pressure behavior model in the complex fracture network, perforation seepage model, and the variable mass seepage model in horizontal wellbore, to establish a semianalytical coupled seepage model for horizontal well in tight reservoir. This paper provides theoretical basis for field application of horizontal well with complex fracture networks.

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