Use of transient pressure data in a drinking water transmission system to assess pipe reliability

2021 ◽  
Author(s):  
Wentao Wang ◽  
Omid Bahrami ◽  
Jerome P. Lynch ◽  
Curt Wolf ◽  
Steve Jin ◽  
...  
Keyword(s):  
Drinking Water ◽  
Transmission System ◽  
Pressure Data ◽  
Transient Pressure ◽  
Water Transmission

scholarly journals The Effect of Rheology of Viscoelastic Polymer on Pressure Transient Response in Near-Wellbore Regions

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Jia Zhang ◽  
Shiqing Cheng ◽  
Jie Zhan ◽  
Qi Han
Keyword(s):  
Shear Thickening ◽  
Shear Thinning ◽  
Polymer Flooding ◽  
High Shear ◽  
Pressure Data ◽  
Transient Pressure ◽  
Pressure Derivative ◽  
Shear Rates ◽  
Viscoelastic Polymer ◽  
Thickening Behavior

Viscoelastic polymer solution shows shear thinning behavior at low shear rates and shear thickening behavior at high shear rates in reservoirs. However, models that ignored shear thickening behavior were commonly employed to interpret transient pressure data derived from tested wells in viscoelastic polymer flooding systems; although, viscoelastic polymer solutions show shear thickening behavior in the near-wellbore region due to high shear rate. To better characterize the oilfield with pressure transient analysis in viscoelastic polymer flooding systems, we developed a numerical model that takes into account both shear thinning behavior and shear thickening behavior. A finite volume method was employed to discretize partially differential flow equations in a hybrid grid system including PEBI mesh and Cartesian grid, and the Newton-Raphson method was used to solve the fully implicit nonlinear system. To illustrate the significance of our model, we compared our model with a model that ignores the shear thickening behavior by graphing their solutions on log-log plots. In the flow regime of near-wellbore damage, the pressure derivative computed by our model is distinctly larger than that computed by the model ignoring shear thickening behavior. Furthermore, the effect of shear thickening behavior on pressure derivative differs from that of near-wellbore damage. We then investigated the influence of shear thickening behavior on pressure derivative with different polymer injection rates, injection rates, and permeabilities. The results can provide a benchmark to better estimate near-wellbore damage in viscoelastic polymer flooding systems. Besides, we demonstrated the applicability and accuracy of our model by interpreting transient pressure data from a field case in an oilfield with viscoelastic polymer flooding treatments.

scholarly journals Strategic Sustainable Management for Water Transmission System: A SWOT-QSPM Analysis

2018 ◽  
Vol 4 (1) ◽  
pp. 29
Author(s):  
Ni Made Sumiarsih ◽  
Djoko Legono ◽  
Robert J. Kodoatie
Keyword(s):  
Swot Analysis ◽  
Transmission System ◽  
System Component ◽  
Strategy Analysis ◽  
Water Losses ◽  
Drain Pipe ◽  
Comprehensive Strategy ◽  
Central Java ◽  
Design Discharge ◽  
Water Transmission

In general, the problem of a water resources infrastructure, especially the raw water transmission system, is that the actual discharge is not in accordance with design discharge because of water losses along the transmission system.To restore the capacity to the design discharge, a comprehensive strategy is required. Various strategy methods have been developed especially the strategy of managing a system. This paper discusses how to analyze the comprehensive strategy with system component approach for water transmission system. The research used Klambu-Kudu Water Transmission System in Semarang, Central Java, Indonesia as a case study. Strategy analysis of Klambu-Kudu Water Transmission System utilized the modified Strength, Weakness, Opportunity, and Threats (SWOT) with Likert scale and Quantitative Strategic Planning Matrix (QSPM) method. SWOT analysis is was carried out to obtain a comprehensive strategy on each component of the water transmission system (intake, mud pouch, siphon, gutter, bridge, culvert, regulator doors, suppletion, drain pipe, and / or excavation), while the QSPM method is required to analyze the strategic priorities of component of Klambu Kudu Water Transmission System. Key factors of water transmission system performance were obtained from the discussion of experts, the management of Klambu Kudu Water Transmission System and the community. The results are a priority of strategies which are dominated by the opportunity factors to solve the problem of weakness (operation and maintenance, sedimentation, damage) and threats (water theft, destruction of buildings, flood) as well as maximizing the strengths (condition of the component, function, accessibility).

Drinking Water Transmission of Giardiasis in the United States

1986 ◽  
Vol 18 (10) ◽  
pp. 219-226 ◽  
Author(s):  
E. W. Akin ◽  
W. Jakubowski
Keyword(s):  
United States ◽  
Drinking Water ◽  
Water Supply ◽  
The United States ◽  
Etiologic Agent ◽  
Route Of Transmission ◽  
Sewage Contamination ◽  
Waterborne Transmission ◽  
Water Transmission ◽  
And Control

For about a century after Giardia was named by Lambl in 1859, the occurrence of the organism in humans was not widely considered significant in explaining the etiology of disease. This organism is now recognized as a cause of disease that ranges from mild to severe and debilitating gastroenteritis. Beginning in 1965, drinking water became increasingly implicated as an important route of transmission. An outbreak occurred in a Colorado ski resort in that year. A survey of visitors to the resort revealed that 123 persons experienced acute enteritis, possibly giardiasis. Sewage contamination of the well water supply was thought to be the source of the organism. Further evidence for waterborne transmission of Giardia came in 1975 with the first isolation of the organism from a water supply implicated in an outbreak. A cyst was isolated from the water supply during an extended outbreak that resulted in 359 confirmed cases over a 7 month period. Subsequent outbreaks have clearly established the role of water in Giardia transmission. From 1965 through 1984, 90 waterborne outbreaks with 23 776 cases of giardiasis were reported in the United States. This report discusses the etiologic agent and examines drinking water outbreak occurrence and control.

scholarly journals Construction of a carbonate reservoir model using transient pressure data

2009 ◽  
Vol 36 (6) ◽  
pp. 762-767 ◽  
Author(s):  
Seyed Sadegh Taheri Rudsari ◽  
Mohammad Bagher Ghanizadeh ◽  
Manuchehr Haghighi
Keyword(s):  
Carbonate Reservoir ◽  
Pressure Data ◽  
Transient Pressure ◽  
Reservoir Model
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