Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (2952)
- Utah State University (819)
- Montana Tech Library (806)
- Department of Primary Industries and Regional Development, Western Australia (487)
- University of Nevada, Las Vegas (366)
-
- Portland State University (350)
- University of Kentucky (309)
- University of Colorado Law School (280)
- City University of New York (CUNY) (270)
- University of Arkansas, Fayetteville (270)
- Old Dominion University (210)
- Louisiana State University (192)
- China Coal Technology and Engineering Group (CCTEG) (190)
- University of South Florida (189)
- South Dakota State University (164)
- University of Texas Rio Grande Valley (156)
- Chapman University (154)
- University of Texas at El Paso (152)
- Montclair State University (135)
- Clemson University (133)
- SIT Graduate Institute/SIT Study Abroad (131)
- Edith Cowan University (128)
- World Maritime University (112)
- Wright State University (103)
- Walden University (98)
- New Jersey Institute of Technology (94)
- Western Kentucky University (87)
- Central Mining Institute (82)
- University of Rhode Island (79)
- California Polytechnic State University, San Luis Obispo (77)
- Keyword
-
- Western Australia (283)
- Climate change (250)
- Sustainability (215)
- Water quality (201)
- Priority Soils (191)
-
- Remote sensing (188)
- Groundwater (157)
- United States (146)
- Conservation (137)
- 2014 International Conference on Hydroinformatics HIC (126)
- Metals Abatement (102)
- Environment (100)
- California (91)
- Management (90)
- Quality Assurance (88)
- GIS (86)
- Agriculture (80)
- Environmental (80)
- Department of Earth and Environmental Sciences (76)
- Hydrology (76)
- Ecology (74)
- Invasive species (72)
- Drought (70)
- Water (69)
- Evapotranspiration (67)
- Nebraska (67)
- Climate (63)
- Machine learning (63)
- Natural resources (63)
- Soil (63)
- Publication Year
- Publication
-
- Silver Bow Creek/Butte Area Superfund Site (800)
- School of Natural Resources: Faculty Publications (658)
- United States Department of Agriculture Wildlife Services: Staff Publications (377)
- Reports (284)
- Electronic Theses and Dissertations (244)
-
- United States Geological Survey: Staff Publications (236)
- Theses and Dissertations (195)
- Coal Geology & Exploration (190)
- United States Department of Commerce: Staff Publications (186)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (161)
- Open Access Theses & Dissertations (152)
- Theses (132)
- LSU Master's Theses (128)
- International Conference on Hydroinformatics (126)
- Independent Study Project (ISP) Collection (124)
- School of Natural Resources: Dissertations, Theses, and Student Research (113)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (110)
- USF Tampa Graduate Theses and Dissertations (105)
- Arkansas Water Resources Center Technical Reports (103)
- Fisheries Research Reports (103)
- Dissertations and Theses (102)
- Walden Dissertations and Doctoral Studies (98)
- The Probe: Newsletter of the National Animal Damage Control Association (96)
- Browse all Theses and Dissertations (95)
- School of Earth, Environmental, & Marine Sciences Faculty Publications (93)
- All U.S. Government Documents (Utah Regional Depository) (85)
- Graduate Theses and Dissertations (83)
- Publications and Research (83)
- Journal of Sustainable Mining (82)
- Environmental Science and Management Faculty Publications and Presentations (78)
- Publication Type
- File Type
Articles 2401 - 2430 of 12796
Full-Text Articles in Entire DC Network
Comment Letter For Draft Final Bpsou Subdrain Pump Station Quality Assurance Project Plan (Dated October 7, 2022), Nikia Greene
Comment Letter For Draft Final Bpsou Subdrain Pump Station Quality Assurance Project Plan (Dated October 7, 2022), Nikia Greene
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Using Active Source Seismology To Image The Palos Verdes Fault Damage Zone As A Function Of Distance, Depth, And Geology, Travis Alongi, Emily E. Brodsky, Jared Kluesner, Daniel Brothers
Using Active Source Seismology To Image The Palos Verdes Fault Damage Zone As A Function Of Distance, Depth, And Geology, Travis Alongi, Emily E. Brodsky, Jared Kluesner, Daniel Brothers
United States Geological Survey: Staff Publications
Fault damage zones provide a window into the non-elastic processes of an earthquake. Geological and seismic tomography methods have been unable to measure damage zones at depth with sufficient spatial sampling to evaluate the relative influence of depth, distance, and lithological variations. Here, we identify and analyze the damage zone of the Palos Verdes Fault offshore southern California using two 3D seismic reflection datasets. We apply a novel algorithm to identify discontinuities attributed to faults and fractures in large seismic volumes and examine the spatial distribution of fault damage in sedimentary rock surrounding the Palos Verdes Fault. Our results show …
Coastal Wetland Area Change For Two Freshwater Diversions In The Mississippi River Delta, John R. White, Brady Couvillion, John W. Day
Coastal Wetland Area Change For Two Freshwater Diversions In The Mississippi River Delta, John R. White, Brady Couvillion, John W. Day
United States Geological Survey: Staff Publications
Coastal systems around the globe are being re-integrated with adjacent river systems to restore the natural hydrologic connection to riparian wetlands. The Mississippi River sediment diversions or river reconnections are one such tool to combat high rates of wetland loss in coastal Louisiana, USA by providing freshwater, sediment, and nutrients. There has been some disagreement in the published literature whether re-establishing river reconnection is slowing or contributing to coastal wetland loss. This issue is due to the difficulties in the application of remote sensing in low-relief environments where water level changes could indicate either land loss or simply temporary submergence. …
Comments For The Draft Final Butte Priority Soils Operable Unit, 2021 Unreclaimed Sites Sampling Ur-36 Site Evaluation Summary Report (August 8, 2022), Nikia Greene
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Nationwide Public Perceptions Regarding The Acceptance Of Using Wastewater For Community Health Monitoring In The United States., A. Scott Lajoie, Asli Aslan, Rochelle H. Holm, Lauren B. Anderson, Heather D. Ness, Ted Smith
Nationwide Public Perceptions Regarding The Acceptance Of Using Wastewater For Community Health Monitoring In The United States., A. Scott Lajoie, Asli Aslan, Rochelle H. Holm, Lauren B. Anderson, Heather D. Ness, Ted Smith
Faculty and Staff Scholarship
To assess the levels of infection across communities during the coronavirus disease 2019 pandemic, researchers have measured severe acute respiratory syndrome coronavirus 2 RNA in feces dissolved in sewer water. This activity is colloquially known as sewer monitoring and is referred to as wastewater-based epidemiology in academic settings. Although global ethical principles have been described, sewer monitoring is unregulated for health privacy protection when used for public health surveillance in the United States. This study used Qualtrics XM, a national research panel provider, to recruit participants to answer an online survey. Respondents (N = 3,083) answered questions about their knowledge, …
Comments For The Draft Final Butte Priority Soils Operable Unit, 2021 Unreclaimed Sites Sampling Ur-24 Site Evaluation Summary Report (July 26, 2022), Nikia Greene
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Comments On The Butte Priority Soils Operable Unit (Bpsou) Draft Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Pre-Design Investigation (Pdi) Evaluation Report (Dated June 10, 2022), Nikia Greene
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Comments For The Draft Final Butte Priority Soils Operable Unit, 2021 Unreclaimed Sites Sampling Ur-03 Site Evaluation Summary Report (August 3, 2022), Nikia Greene
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
The Coastal Monitor: Vol. 9 No. 5, John Tanacredi Ph.D.
The Coastal Monitor: Vol. 9 No. 5, John Tanacredi Ph.D.
The Coastal Monitor
There are a multitude of lessons learned from the last 3 years of the Covid-19 pandemic. But one truly stands out ...the total lack of understanding of the basic chemistry associated with the nitrogen cycle, which in Suffolk County, NY, continues to be declared as the “evil-nitrogen”. The major source of nitrogen into the water body comes from the atmosphere which is the predominate constituent of the air we breathe79% nitrogen. Nitrogen compounds contribution to eutrophication in freshwater (ponds & lakes) systems is legendary and, the concentration of nitrogen in marine waters has always been known as a limiting agent …
2023 Western Australian Crop Sowing Guide, B. Shackley, B. Paynter, J. Bucat, M. Seymour, H. Dhammu
2023 Western Australian Crop Sowing Guide, B. Shackley, B. Paynter, J. Bucat, M. Seymour, H. Dhammu
Bulletins 4000 -
Welcome to the 2023 edition of the Crop Sowing Guide for WA, which introduces 31 new variety releases: two wheat, seven barley (one as feed only and six currently under malt evaluation), 15 canola, three hay-only oat and four lentil varieties.
The Crop Sowing Guide for WA has been compiled by officers in the Department of Primary Industries and Regional Development. It provides information to support variety decisions for each of the major crops for the upcoming season.
In this edition, the canola NVT series are now identified by GRDC/NVT as ‘Low-Med Rainfall’ and ‘Med–High Rainfall’ to reflect the environments …
Barriers To Student Engagement With Waste Diversion: Recycling And Composting Practices On The University Of Denver Campus, Izzy Beltran, Madeline Bonner, Dan Oxendine, Jason Tipler, Jules Mello, Tommy Dainko
Barriers To Student Engagement With Waste Diversion: Recycling And Composting Practices On The University Of Denver Campus, Izzy Beltran, Madeline Bonner, Dan Oxendine, Jason Tipler, Jules Mello, Tommy Dainko
Anthropology: Undergraduate Student Scholarship
This project sought to investigate barriers, facilitators, and behavioral patterns related to waste diversion on the University of Denver (DU) campus. In general, waste diversion can be defined as the methods of disposing of waste that prevent it from being deposited in a landfill. At the University of Denver, waste diversion is achieved primarily through recycling and composting. It is these two methods that our report will focus on.
Hummingbird Diversity, Abundance, And Feeding Interactions Across Three Floral Communities On Mount Totumas, Chiriquí, Panamá, Zachary Ginn
Hummingbird Diversity, Abundance, And Feeding Interactions Across Three Floral Communities On Mount Totumas, Chiriquí, Panamá, Zachary Ginn
Independent Study Project (ISP) Collection
(Trochilidae) are a large Neotropical bird family of nectar-feeders that have evolved as pollinators of many Neotropical plants. Interactions between hummingbirds and plants form mutualistic networks that may change in structure over environmental and anthropogenic gradients. While the unique dynamics of hummingbird diversity and floral interactions have been studied throughout the Neotropics, differing drivers between locations emphasizes the need for further local research. This deficit is especially crucial in biodiverse and understudied locations like the Western Highlands of Panamá. In this study, I investigated how hummingbird diversity, abundance, and floral interactions differed between Cloud Forest, Garden, and Oak Forest on …
A Study About Recommendation Of Research And Development The “Green Generation Restaurants”, Sena Ersoy, Atilla Akbaba
A Study About Recommendation Of Research And Development The “Green Generation Restaurants”, Sena Ersoy, Atilla Akbaba
University of South Florida (USF) M3 Publishing
In this study, the subject of "Green Generation Restaurant" was examined based on Turkey, and suggestions were developed for Turkey to use this movement more efficiently. “Green Generation Restaurant”, a concept that has become increasingly popular today, has started to shape the field of gastronomy with the philosophy it contains. Turkey's participation in this trend, which is still in the initial state, has the potential to be one of the important steps for the Anatolian culinary culture to finally reach the place it deserves. In this context, it is important to produce and develop new ideas on “Green Generation Restaurant …
Landscape Change, Scale, And Human Response To Change In The Great Plains, Kate Bird
Landscape Change, Scale, And Human Response To Change In The Great Plains, Kate Bird
School of Natural Resources: Dissertations, Theses, and Student Research
Great Plains landscapes are undergoing changes at multiple spatial and temporal scales due to processes ranging from woody encroachment to climate change. These changes may fundamentally alter the agroecosystems of the Great Plains such that the provisioning of ecosystem services including biodiversity and livestock production is affected. Improving our understanding of the effects of landscape change at multiple scales and how humans perceive and respond to these changes is important for facilitating research and management that enhances the resilience of these agroecosystems. As such, I first applied discontinuity theory and graph theory to evaluate the functional connectivity of the Central …
Could A More Limited Environmental Goods Agreement Resolve Continued Issues In Cities Compliance?, Andrew Coccoli
Could A More Limited Environmental Goods Agreement Resolve Continued Issues In Cities Compliance?, Andrew Coccoli
William & Mary Environmental Law and Policy Review
This Note will adopt an economic perspective while advocating for the most sustainable practices in natural resources management. It will first conduct a series of case studies of natural resources for which there is transnational or international demand, but unsustainable management. While CITES-listed resources will be considered with particular attention, unlisted and more conventional resources will also be considered. In its second part, this Note will consider mechanisms currently available in international trade to accommodate environmental progress, then will set forth various new measures the WTO could adopt to incentivize sustainable management of the Part I resources. Part III will …
Getting Ahead Of Flash Drought: From Early Warning To Early Action, Jason A. Otkin, Molly Woloszyn, Hailan Wang, Mark D. Svoboda, Marina Skumanich, Roger Pulwarty, Joel Lisonbee, Andrew Hoell, Mike Hobbins, Tonya Haigh, Amanda E. Cravens
Getting Ahead Of Flash Drought: From Early Warning To Early Action, Jason A. Otkin, Molly Woloszyn, Hailan Wang, Mark D. Svoboda, Marina Skumanich, Roger Pulwarty, Joel Lisonbee, Andrew Hoell, Mike Hobbins, Tonya Haigh, Amanda E. Cravens
National Drought Mitigation Center: Faculty Publications
Flash droughts, characterized by their unusually rapid intensification, have garnered increasing attention within the weather, climate, agriculture, and ecological communities in recent years due to their large environmental and socioeconomic impacts. Because flash droughts intensify quickly, they require different early warning capabilities and management approaches than are typically used for slower-developing “conventional” droughts. In this essay, we describe an integrated research-and-applications agenda that emphasizes the need to reconceptualize our understanding of flash drought within existing drought early warning systems by focusing on opportunities to improve monitoring and prediction. We illustrate the need for engagement among physical scientists, social scientists, operational …
Sustainable Fashion Design Exploration: Transformation To Zero-Waste, Colleen Moretz
Sustainable Fashion Design Exploration: Transformation To Zero-Waste, Colleen Moretz
Sustainable Fashion Design Exploration
Sustainability has been at the center of my scholarship across the apparel and textile disciplines. Focusing my creative design scholarship on sustainability generates awareness of sustainable issues within the apparel industry to hopefully encourage change in fashion practices. This concentration on sustainability has been an evolution of investigating sustainable design processes through the exploration of transformation, aesthetics, zero waste, and up-cycling.
How Elevation Affects Epiphyte Distribution: An Analysis In Epiphyte Distribution Changes At Different Elevations And Tree Strata In Santa Lucia Cloud Forest Reserve, Ecuador, Nicole L. Melnick
Independent Study Project (ISP) Collection
Cloud forests are unique ecosystems due to their tropical nature, high elevations, and extremely high presence of epiphytes that serve many important roles for the ecosystem’s biotic and abiotic components. As epiphytes can make up anywhere from one-quarter (Foster 2001) to a half (Gómez González et al. 2017) of all local plant species in cloud forests, it is essential to understand how their habitat distributions change with elevation and whether climate change will have a significant effect on that. This study used observational survey methods to record the amount of monocots (separately counted bromeliads and orchids), dicots, ferns, and percent …
Phylogenetic Resolution Of The Fly Superfamily Ephydroidea–Molecular Systematics Of The Enigmatic And Diverse Relatives Of Drosophilidae, Isaac S. Winkler, Ashley H. Kirk-Spriggs, Keith M. Bayless, John Soghigian, Rudolf Meier, Thomas Pape, David K. Yeates, A. Bernardo Carvalho, Robert S. Copeland, Brian M. Wiegmann
Phylogenetic Resolution Of The Fly Superfamily Ephydroidea–Molecular Systematics Of The Enigmatic And Diverse Relatives Of Drosophilidae, Isaac S. Winkler, Ashley H. Kirk-Spriggs, Keith M. Bayless, John Soghigian, Rudolf Meier, Thomas Pape, David K. Yeates, A. Bernardo Carvalho, Robert S. Copeland, Brian M. Wiegmann
All Peer-Reviewed Publications
The schizophoran superfamily Ephydroidea (Diptera: Cyclorrhapha) includes eight families, ranging from the well-known vinegar flies (Drosophilidae) and shore flies (Ephydridae), to several small, relatively unusual groups, the phylogenetic placement of which has been particularly challenging for systematists. An extraordinary diversity in life histories, feeding habits and morphology are a hallmark of fly biology, and the Ephydroidea are no exception. Extreme specialization can lead to “orphaned” taxa with no clear evidence for their phylogenetic position. To resolve relationships among a diverse sample of Ephydroidea, including the highly modified flies in the families Braulidae and Mormotomyiidae, we conducted phylogenomic sampling. Using exon …
Comment Letter For: Quality Assurance Project Plan: Long-Term Operation And Maintenance Of Railroad Assets, For Bnsf Railway Company And Union Pacific Railroad, Butte Priority Soils Operable Unit (Dated May 2022), Nikia Greene
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Seasonal Habitat Selection By American White Pelicans, Frederick L. Cunningham, Guiming Wang, D. Tommy King
Seasonal Habitat Selection By American White Pelicans, Frederick L. Cunningham, Guiming Wang, D. Tommy King
United States Department of Agriculture Wildlife Services: Staff Publications
Resource utilization strategies of avian migrants are a major concern for conservation and management. Understanding seasonal habitat selection by migratory birds helps us explain the ongoing continental declines of migratory bird populations. Our objective was to compare the secondorder and third-order habitat selection by the American White Pelican (Pelecanus erythrorhynchos; hereafter pelican) between the breeding and non-breeding grounds. We tested the Lack hypothesis that habitat selection by migratory birds is stronger on the breeding grounds than on the nonbreeding grounds. We used random-effect Dirichlet-multinomial models to estimate the second-order habitat selection between the seasons with the GPS locations …
Butte Priority Soils Operable Unit (Bpsou) Final Insufficiently Reclaimed Sites - Field Sampling Plan (Fsp) Bres No. 34 – Eveline, Mike Mcanulty
Butte Priority Soils Operable Unit (Bpsou) Final Insufficiently Reclaimed Sites - Field Sampling Plan (Fsp) Bres No. 34 – Eveline, Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Discovering Hidden Geothermal Signatures Using Non-Negative Matrix Factorization With Customized K-Means Clustering, V. V. Vesselinov, B. Ahmmed, M. K. Mudunuru, J. D. Pepin, E. R. Burns, D. L. Siler, S. Karra, R. S. Middleton
Discovering Hidden Geothermal Signatures Using Non-Negative Matrix Factorization With Customized K-Means Clustering, V. V. Vesselinov, B. Ahmmed, M. K. Mudunuru, J. D. Pepin, E. R. Burns, D. L. Siler, S. Karra, R. S. Middleton
United States Geological Survey: Staff Publications
Discovery of hidden geothermal resources is challenging. It requires the mining of large datasets with diverse data attributes representing subsurface hydrogeological and geothermal conditions. The commonly used play fairway analysis approach typically incorporates subject-matter expertise to analyze regional data to estimate geothermal characteristics and favorability. We demonstrate an alternative approach based on machine learning (ML) to process a geothermal dataset from southwest New Mexico (SWNM). The study region includes low- and medium-temperature hydrothermal systems. Several of these systems are not well characterized because of insufficient existing data and limited past explorative work. This study discovers hidden patterns and relations in …
Neural Net Detection Of Seismic Features Related To Gas Hydrates And Free Gas Accumulations On The Northern U.S. Atlantic Margin, Urmi Majumdar, Nathaniel C. Miller, Carolyn D. Ruppel
Neural Net Detection Of Seismic Features Related To Gas Hydrates And Free Gas Accumulations On The Northern U.S. Atlantic Margin, Urmi Majumdar, Nathaniel C. Miller, Carolyn D. Ruppel
United States Geological Survey: Staff Publications
Bottom-simulating reflections (BSRs) that sometimes mark the base of the gas hydrate stability zone in marine sediments are often identified based on the reverse polarity reflections that cut across stratigraphic layering in seismic amplitude data. On the northern U.S. Atlantic margin (USAM) between Cape Hatteras and Hudson Canyon, legacy seismic data have revealed pronounced BSRs south of the deepwater extension of Hudson Canyon and more subtle ones from offshore Delaware south to Cape Hatteras, where the reflections sometimes follow stratigraphic layering. Using high-resolution seismic data acquired during the 2018 Mid-Atlantic Resource Imaging Experiment and a supervised neural net, we identify …
Establishment Of Invasive Black Carp (Mylopharyngodon Piceus) In The Mississippi River Basin: Identifying Sources And Year Classes Contributing To Recruitment, Gregory W. Whitledge, Patrick T. Kroboth, Duane C. Chapman, Quinton E. Phelps, Wes Sleeper, Jennifer Bailey, Jill A. Jenkins
Establishment Of Invasive Black Carp (Mylopharyngodon Piceus) In The Mississippi River Basin: Identifying Sources And Year Classes Contributing To Recruitment, Gregory W. Whitledge, Patrick T. Kroboth, Duane C. Chapman, Quinton E. Phelps, Wes Sleeper, Jennifer Bailey, Jill A. Jenkins
United States Geological Survey: Staff Publications
Black Carp (Mylopharyngodon piceus) was imported to the USA to control aquaculture pond snails. This species has escaped captivity and occurs in parts of the Mississippi River, several tributaries, and floodplain lakes, which is concerning due to potential competition with native fishes and predation on native mussels, many of which are imperiled. However, Black Carp captures have primarily been incidental by commercial fishers, and evidence of reproduction in the wild is limited. The objectives of this study were to assess relative abundance of aquaculture- origin and wild Black Carp using ploidy and otolith stable isotope analysis, identify spatial …
Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Draft Final Insufficiently Reclaimed Sites - Field Sampling Plan (Fsp) Bres No. 38 – Sister Dump (Dated June 16, 2022), Nikia Greene
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Approval Letter For: Butte Priority Soils Operable Unit (Bpsou) Revised Draft Final Quarterly Operations And Maintenance Report Butte Treatment Lagoons System – Second Quarter 2021 (Dated July 20, 2022), Nikia Greene
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Approval Letter For The Request For Change (Rfc) To The Butte Priority Soils Operable Unit (Bpsou) Request For Change (Rfc) No. 1 To The Final 2022 Insufficiently Reclaimed Sites Quality Assurance Project Plan (Qapp) (Dated August 31, 2022), Nikia Greene
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Multi-Omics Responses In Tree Swallow (Tachycineta Bicolor) Nestlings From The Maumee Area Of Concern, Maumee River, Ohio, Chi Yen Tseng, Christine M. Custer, Thomas W. Custer, Paul M. Dummer, Natalie Karouna-Renier, Cole W. Matson
Multi-Omics Responses In Tree Swallow (Tachycineta Bicolor) Nestlings From The Maumee Area Of Concern, Maumee River, Ohio, Chi Yen Tseng, Christine M. Custer, Thomas W. Custer, Paul M. Dummer, Natalie Karouna-Renier, Cole W. Matson
United States Geological Survey: Staff Publications
A multi-omics approach was utilized to identify altered biological responses and functions, and to prioritize contaminants to assess the risks of chemical mixtures in the Maumee Area of Concern (AOC), Maumee River, OH, USA. The Maumee AOC is designated by the United States Environmental Protection Agency as having significant beneficial use impairments, including degradation of fish and wildlife populations, bird or animal deformities or reproduction problems, and loss of fish and wildlife habitat. Tree swallow (Tachycineta bicolor) nestlings were collected at five sites along the Maumee River, which included wastewater treatment plants (WWTPs) and industrial land-use sites. Polychlorinated …
Application And Improvement Directions Of Rodless Drainage Technology In Coalbed Methane Wells: A Case Study From East Margin Of Ordos Basin, Ma Wentao, Liu Yinhua, Wu Jianjun, Wang Yubin, Wang Chengwang, Xu Wanyong
Application And Improvement Directions Of Rodless Drainage Technology In Coalbed Methane Wells: A Case Study From East Margin Of Ordos Basin, Ma Wentao, Liu Yinhua, Wu Jianjun, Wang Yubin, Wang Chengwang, Xu Wanyong
Coal Geology & Exploration
The eastern margin of Ordos Basin has a huge amount of coalbed methane resources, and has become one of the main coalbed methane producing areas in China. Since the development of the block, hydraulic rodless pump, hydraulic jet pump, electric submersible pump and diaphragm pump drainage and production process tests have been carried out for highly deviated wells and horizontal wells in medium shallow coal seam. During production, it is found that the above four types of rodless drainage and production processes have the advantages of effectively avoiding eccentric wear of pipes and rods in highly deviated wells and horizontal …