The use of woods-run chips in filter socks to control erosion and sedimentation during petroleum development in the Appalachian Basin
| Autor: | Lawrence E. Osborn, Shawn T. Grushecky, Louis M. McDonald |
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| Rok vydání: | 2019 |
| Předmět: |
Moisture
business.industry Stratigraphy Fossil fuel 0207 environmental engineering Environmental engineering Sediment Geology 02 engineering and technology 010501 environmental sciences Sedimentation 01 natural sciences chemistry.chemical_compound chemistry Erosion Environmental science Petroleum Capital cost 020701 environmental engineering business Water content 0105 earth and related environmental sciences |
| Zdroj: | International Journal of Sediment Research. 34:608-615 |
| ISSN: | 1001-6279 |
| DOI: | 10.1016/j.ijsrc.2018.12.001 |
| Popis: | Filter socks frequently are used for erosion and sediment perimeter control during oil and gas development activities in the Appalachian Basin of the United States. Regulations specify the use of composted wood material for sock construction. This specification, as opposed to non-composted or fresh wood chips (woods-run), has created inefficiencies during well site construction. Rather than use fresh wood chips created during site construction, composted chips must be procured and used as filter sock media for erosion and sedimentation mitigation. If woods-run chips could be used as filter sock media instead of composted chips, there could be a significant reduction in energy/capital costs, truck traffic, and disposal costs. The primary objective of this research project was to compare the effectiveness of woods-run material versus traditionally composted wood chips in controlling sediment transport as well as other chemical and physical parameters in a laboratory setting. No significant differences in pH (5.96 versus 6.02) or conductivity (0.029 dS/m versus 0.035 dS/m) were found in sediment laden water filtered through woods-run versus composted chips, respectively. However, chip particle sizes were outside the allowable limits for composted sock media, and moisture content also was outside the specified limits for woods-run chips. Nitrate (NO3) concentrations were significantly higher in woods-run, while phosphorus (P) and potassium (K) concentrations were greater in composted chips; however none of the N,P, or K concentrations were above the regulatory requirements. Finally, no difference in the filtering efficiency or time was found between woods-run and composted material. The laboratory results indicate that current regulations allowing the use of woods-run chips in all but the highest quality watersheds is justified. |
| Databáze: | OpenAIRE |
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