| DOI: | 10.2172/1235560
|
| 报告号: | None
|
| 报告题名: | Field Test and Evaluation of Engineered Biomineralization Technology for Sealing Existing Wells |
| 作者: | Cunningham, Alfred
|
| 出版年: | 2015
|
| 发表日期: | 2015-12-21
|
| 总页数: | 57
|
| 国家: | 美国
|
| 语种: | 英语
|
| 中文主题词: | 钙
; 碳
; 降水
; 碳酸酯
|
| 主题词: | CALCIUM
; CARBON
; PRECIPITATION
; CARBONATE
|
| 英文摘要: | This research project addresses one of the goals of the U.S. Department of Energy (DOE) Carbon Storage Program (CSP) aimed at developing Advanced Wellbore Integrity Technologies to Ensure Permanent Geologic Carbon Storage. The technology field-tested in this research project is referred to as microbially induced calcite precipitation (MICP), which utilizes a biologically-based process to precipitate calcium carbonate. If properly controlled MICP can successfully seal fractures, high permeability zones, and compromised wellbore cement in the vicinity of wellbores and in nearby caprock, thereby improving the storage security of geologically-stored carbon dioxide. This report describes an MICP sealing field test performed on a 24.4 cm (9.625 inch) diameter well located on the Gorgas Steam Generation facility near Jasper, Alabama. The research was aimed at (1) developing methods for delivering MICP promoting fluids downhole using conventional oil field technologies and (2) assessing the ability of MICP to seal cement and formation fractures in the near wellbore region in a sandstone formation. Both objectives were accomplished successfully during a field test performed during the period April 1-11, 2014. The test resulted in complete biomineralization sealing of a horizontal fracture located 340.7 m (1118 feet) below ground surface. A total of 24 calcium injections and six microbial inoculation injections were required over a three day period in order to achieve complete sealing. The fractured region was considered completely sealed when it was no longer possible to inject fluids into the formation without exceeding the initial formation fracture pressure. The test was accomplished using conventional oil field technology including an 11.4 L (3.0 gallon) wireline dump bailer for injecting the biomineralization materials downhole. Metrics indicating successful MICP sealing included reduced injectivity during seal formation, reduction in pressure falloff, and demonstration of MICP by-products including calcium carbonate (CaCO3) in treated regions of side wall cores. This project successfully integrated mesoscale laboratory experiments at the Center for Biofilm Engineering (CBE) together with simulation modeling conducted at the University of Stuttgart to develop the protocol for conducting the biomineralization sealing test in the field well. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1235560
|
| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/41674
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| File Name/ File Size |
Content Type |
Version |
Access |
License |
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| 1235560.pdf（4220KB） | 研究报告 | -- | 开放获取 | | View
Download
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| Recommended Citation: | |
Cunningham, Alfred. Field Test and Evaluation of Engineered Biomineralization Technology for Sealing Existing Wells. 2015-01-01.
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