Downloads - Task 4

Document	Description
Summary Task 4	This document is a brief synopsis of the Final Report for Task 4.
Final Report Task 4	This is a high level summary of the accomplishments, findings and available reports for Task 4 (Stimulation and Damage Mitigation).
Matrix Injection and Damage Mechanisms	Formation damage can be referred to as the mechanism that alters the permeability of the near-wellbore region, causing loss of injectivity performance. It has proven to be a major challenge to predict when it should be expected, what mechanisms will be involved and what are the consequences of the damage. There are many factors that contribute to the formation damage mechanisms.
Damage Models and Removal - An Overview	This overview looks at generic models methodology for mitigation or remediation. Various publications related to damage resulting from suspended solids, scale, hydrocarbons, corrosion and bacteria growth are also cited.
Matrix or Fractured?	As has been determined through the course of this project, some people still refuse to acknowledge that their wells are fractured - afraid of the outdated stigma that injector fracturing should be avoided at all costs. This report provides discussion on some of the ways that you can help resolve whether an injector is fractured or not - and if it is fractured, whether it is not propagating (stationary).
PEA 23: Background	The PEA-23 relationship has been reviewed and validated using field data. This document presents data analysis procedures and examples on how to use this relationship for injector performance prediction.
PEA-23: Does it Work?	The PEA-23 relationship was developed during an earlier JIP to represent damage in stationary fractures (independent of time). It was empirically derived for moderate to high permeability formations. This reports demonstrates that it is possible to modify the permeability weighting factor in the PEA-23 relationship and make it applicable to low permeability formations.
Toolbox	Click on this link to download the zipped file containing the PWRI Toolbox. Be sure to unzip the files into one folder. Once the file is unzipped, execute SETUP.EXE. The setup program will install the PWRI Toolbox onto your PC. To initiate the toolbox, click on the shortcut created on your desktop labeled "PWRI Toolbox."
Toolbox User's Guide	A user's guide to the various components in the PWRI Toolbox.
Toolbox Technical Manual	A compilation of technical background, assumptions, limitations, etc., for the components in the PWRI Toolbox.
Statistical Considerations	For one reason or another during normal field operations, there are fluctuations in data, some of them mechanistically important and others spurious or erroneous. It is important to start to process data with statistical significance in mind. This is a first attempt at doing this and the methodology will continue to evolve.
Data Analysis Demonstration	Another example of data analysis is for information from Statoil's Well A43 (Heidrun). The data were analyzed exclusively using the PWRI Toolbox. The data were uploaded and the Reciprocal Injectivity Index was calculated and plotted against time.
Water Quality	Methods have been developed for assessing the characteristics of seawater or produced water to its injection or re-injection to identify the level of suspended particles present and the nature of these particles.
Matrix Injection Workshop	This workshop concentrated on "The Development of Design Methodologies." The topics discussed included Matrix Injection - A Conventional Approach, Field Experience and How to Monitor Water Quality.
Damage and Stimulation Workshop	This workshop also concentrated on "The Development of Design Methodologies - Technology Today." The topics discussed included Damage and Stimulation, Field Experience, The Impact of Surface Facilities on Injectivity Impairment, How is a Successful Stimulation Treatment Defined? and Economics of Produced Water Re-Injection. Under the category of Technology Tomorrow - the participants pooled their knowledge and experience in order to formulate a final product.