Well Test Analysis for Enhanced Oil Recovery Projects

Recent studies on the transient flow of non-Newtonian fluid in porous media have proposed new well test analysis techniques for non-Newtonian injection wells. This paper extends these new techniques to non-Newtonian injection well falloff testing. The practical use of this well test analysis method is demonstrated. The limitations of the techniques are also addressed. Exmaples of field data are used to demonstrate how this analysis can aid in well test interpretation and provide data and insight for the design and operation of enhanced oil recovery projects.

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A New General Flow Model for Well Test Analysis for Fluids Used in Enhanced Oil Recovery Projects - (SPE-164886)

London 2013, 75th eage conference en exhibition incorporating SPE Europec ◽

10.3997/2214-4609.20130506 ◽

2013 ◽

Author(s):

A.R. Valdes-Perez ◽

H. Cinco-Ley ◽

H. Pulido-Bello ◽

F. Hveding ◽

F. Samaniego

Keyword(s):

Enhanced Oil Recovery ◽

Oil Recovery ◽

Flow Model ◽

Well Test ◽

Well Test Analysis ◽

Test Analysis ◽

General Flow

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A new general flow model for Well Test Analysis for fluids used in Enhanced Oil Recovery Projects

10.2118/164886-ms ◽

2013 ◽

Author(s):

Alex R. Valdes-Perez ◽

Heber Cinco-Ley ◽

Hector Pulido-Bello ◽

Frode Hveding ◽

Fernando Samaniego

Keyword(s):

Enhanced Oil Recovery ◽

Oil Recovery ◽

Flow Model ◽

Well Test ◽

Well Test Analysis ◽

Test Analysis ◽

General Flow

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A Well-Test Analysis Method Accounting for Pre-Test Operations

SPE Journal ◽

10.2118/83644-pa ◽

2003 ◽

Vol 8 (01) ◽

pp. 22-32 ◽

Cited By ~ 2

Author(s):

D.B. Silin ◽

C.-F. Tsang

Keyword(s):

Well Test ◽

Analysis Method ◽

Well Test Analysis ◽

Test Analysis ◽

Test Operations

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Simulation Study of Thermal Well Test Analysis in Steam Injection Wells

10.2118/150295-ms ◽

2011 ◽

Author(s):

Ashkan Jahanbani Ghahfarokhi ◽

Tom Aage Jelmert ◽

Jon Kleppe

Keyword(s):

Simulation Study ◽

Steam Injection ◽

Well Test ◽

Well Test Analysis ◽

Injection Wells ◽

Test Analysis

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A Two-Phase Numerical Model of Well Test Analysis to Characterize Formation Damage in Near-Well Regions of Injection Wells

Geofluids ◽

10.1155/2021/6693965 ◽

2021 ◽

Vol 2021 ◽

pp. 1-15

Author(s):

Jia Zhang ◽

Shiqing Cheng ◽

Shiying Di ◽

Zhanwu Gao ◽

Rui Yang ◽

...

Keyword(s):

Flow Regimes ◽

Transient Behavior ◽

Formation Damage ◽

Well Test ◽

Well Test Analysis ◽

Injection Wells ◽

Two Phase ◽

Test Analysis ◽

Specific Flow ◽

Pressure Transient

Formation damage usually occurs in near-well regions for injection wells completed in offshore oilfields under the development of line drive patterns. However, current works on characterizing the damage by well test analysis were basically focused on using single-phase analogy to solve two-phase flow issues, resulting in errors on the diagnosis and interpretation of transient pressure data. In this paper, we developed a two-phase model to simulate the pressure transient behavior of a water injection well in a multiwell system. To solve the model more efficiently, we used the finite volume method to discretize partially differential flow equations in a hybrid grid system, including both Cartesian and radial meshes. The fully implicit Newton-Raphson method was also employed to solve the equations in our model. With this methodology, we compared the resulting solutions with a commercial simulator. Our results keep a good agreement with the solutions from the simulator. We then graphed the solutions on a log-log plot and concluded that the effects of transitional zone and interwell interference can be individually identified by analyzing specific flow regimes on the plot. Further, seven scenarios were raised to understand the parameters which dominate the pressure transient behavior of these flow regimes. Finally, we showed a workflow and verified the applicability of our model by demonstrating a case study in a Chinese offshore oilfield. Our model provides a useful tool to reduce errors in the interpretation of pressure transient data derived from injection wells located in a line drive pattern.

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