Microbially Induced Calcium Carbonate Plugging for Enhanced Oil Recovery
المؤلفون المشاركون
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-07-02
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
Plugging high-permeability zones within oil reservoirs is a straightforward approach to enhance oil recovery by diverting waterflooding fluids through the lower-permeability oil-saturated zones and thereby increase hydrocarbon displacement by improvements in sweep efficiency.
Sporosarcina pasteurii (ATCC 11859) is a nitrogen-circulating bacterium capable of precipitating calcium carbonate given a calcium ion source and urea.
This microbially induced carbonate precipitation (MICP) is able to infill the pore spaces of the porous medium and thus can act as a potential microbial plugging agent for enhancing sweep efficiency.
The following explores the microscopic characteristics of MICP-plugging and its effectiveness in permeability reduction.
We fabricate artificial rock cores composed of Ottawa sand with three separate grain-size fractions which represent large (40/60 mesh sand), intermediate (60/80 mesh sand), and small (80/120 mesh sand) pore sizes.
The results indicate a significant reduction in permeability after only short periods of MICP treatment.
Specifically, after eight cycles of microbial treatment (about four days), the permeability for the artificial cores representing large, intermediate, and small pore size maximally drop to 47%, 32%, and 16% of individual initial permeabilities.
X-ray diffraction (XRD) indicates that most of the generated calcium carbonate crystals occur as vaterite with only a small amount of calcite.
Imaging by SEM indicates that the pore wall is coated by a calcium carbonate film with crystals of vaterite and calcite scattered on the pore wall and acting to effectively plug the pore space.
The distribution pattern and morphology of microbially mediated CaCO3 indicate that MICP has a higher efficiency in plugging pores compared with extracellular polymeric substances (EPSs) which are currently the primary microbial plugging agent used to enhance sweep efficiency.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Song, Chenpeng& Elsworth, Derek. 2020. Microbially Induced Calcium Carbonate Plugging for Enhanced Oil Recovery. Geofluids،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1159687
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Song, Chenpeng& Elsworth, Derek. Microbially Induced Calcium Carbonate Plugging for Enhanced Oil Recovery. Geofluids No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1159687
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Song, Chenpeng& Elsworth, Derek. Microbially Induced Calcium Carbonate Plugging for Enhanced Oil Recovery. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1159687
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1159687
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر