Mechanistic study and modeling of precipitation scale inhibitor squeeze processes
Book
·
OSTI ID:113570
A scale inhibitor precipitation squeeze is one of the two main types of treatment for preventing downhole scale deposition; the other type is an adsorption squeeze. However, unlike for the adsorption squeeze process, the mechanism for inhibitor retention within the formation through precipitation/re-dissolution is not fully understood and it is this issue that is considered in this work. Here, the central objective is to consider a range of possible models of the precipitation squeeze process and to determine which of these are consistent with the available laboratory core flood and field data. Such models range from pure precipitation through to more complex models which couple the precipitation process with an adsorption process or with a mechanical transport phenomenon. The various models are explained in terms of the chemical processes which are observed. Results from two inhibitor precipitation core floods and one field squeeze treatment are presented along with the modeled inhibitor return curves. Based on certain model assumptions, the authors understanding of the process allows them to optimize the squeeze design of both inhibitor solution and operational parameters for extending the precipitation squeeze life time.
- OSTI ID:
- 113570
- Report Number(s):
- CONF-950207--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Scale inhibitor adsorption/desorption vs. precipitation: The potential for extending squeeze life while minimizing formation damage
Application of a scale inhibitor squeeze model to improve field squeeze treatment design
Examination of the change in returning molecular weight obtained during inhibitor squeeze treatments using polyacrylate based inhibitors
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:379630
Application of a scale inhibitor squeeze model to improve field squeeze treatment design
Conference
·
Fri Dec 30 23:00:00 EST 1994
·
OSTI ID:382618
Examination of the change in returning molecular weight obtained during inhibitor squeeze treatments using polyacrylate based inhibitors
Book
·
Tue Oct 31 23:00:00 EST 1995
·
OSTI ID:113569