... of magnitude. The DNAPL zone is bounded below by a clay aquitard that serves as an effective capillary barrier to downward DNAPL migration. A partitioning interwell tracer test (PITT) measured approximately 81 ± 7 gallons (280–330 L) of DNAPL in the test zone, with the majority of DNAPL located near...

...Elena Moreno-Barbero; Yongcheol Kim; Satawat Saenton; Tissa H. Illangasekare Abstract Partitioning interwell tracer tests (PITTs) have been proposed as a tool to characterize source zones of waste sites with chemicals entrapped in the form of nonaqueous-phase liquids (NAPLs). This technique has...

...Elena Moreno-Barbero; Tissa H. Illangasekare Abstract Characterization of dense non-aqueous phase liquid (DNAPL) in heterogeneous media represents a major challenge in the remediation process due to the complexity of DNAPL distribution in the subsurface. The partitioning interwell tracer test (PITT...

...R. E. JACKSON; M. JIN Abstract The partitioning interwell tracer test (PITT) was introduced into the practice of contaminant hydrogeology in 1994, since which time about 50 PITTs have been conducted in the field. Confirmation of results of vadose-zone and ground-water zone PITTs by subsequent field...

...Liqing Li; Paul T. Imhoff Abstract Water saturation is a key parameter in studies of pollutant transport in the vadose zone and an important factor controlling the rate of waste degradation in municipal solid waste landfills. The partitioning interwell tracer test (PITT) has been suggested...

... for tracer tests, the interwell tracer test, involves a combination of pumping injection and extraction wells. The use of this configuration was first proposed for the partitioning tracer method by Cooke (1971) and is the most common method for environmental applications. The well field for this approach...

... nonaqueous phase liquids . Water Resour. Res . 31 : 1201 – 1211 . Mariner , P.E. , M. Jin , J.E. Studer , and G.A. Pope . 1999 . The first vadose zone partitioning interwell tracer test for nonaqueous phase liquid and water residual . Environ. Sci. Technol . 33 : 2825 – 2828...

... light on the processes of NAPL migration and trapping. For example, it is becoming increasingly clear that much lower saturations than those reported by Mercer and Cohen (1990) are the rule and that NAPL-wetting conditions are common. The partitioning interwell tracer test (PITT) developed by G...

... . 1999 . Analysis of partitioning interwell tracer tests . Environ. Sci. Technol . 33 : 3829 – 3836 . Feenstra , S. , and J.A. Cherry . 1996 . Diagnosis and assessment of DNAPL sites . p. 395 – 473 . In J.F. Pankow and J.A. Cherry (ed.) Dense chlorinated solvents...

.... The technique is also extremely useful in the analysis of measurements from more specialized experiments, such as tracer tests and partitioning tracer tests. In these tests, a small slug of an observable tracer is added to the injected fluid. Produced fluids are then sampled at particular time intervals...

... of NAPL saturation and composition from typical soil chemical analyses :: Ground Water Monitoring Remediation , 17 . 122 – 129 . Mariner , P. E. , Jin , M. , Studer , J. E. , and Pope , G. A. , 1999 , The first vadose zone partitioning interwell tracer test for nonaqueous phase...

...) and to transmit energy for the cross-well seismic measurements. Radioactive tracer tests were used to test the isolation of the perforated zone and were found to be satisfactory. Downhole deviation surveys were run on both wells to determine the orientation of the wellbores and calculate the interwell geometries...

..., nonrelaxing and conductive NR-NC, nonrelaxing and nonconductive PITT, partitioning interwell tracer test REV, representative elemental volume RGB, red, green, blue R-NC, relaxing and nonconductive TDR, time domain reflectometry S ince the work of Topp et al. (1980) , which established...

... by geosorbents . Environ. Sci. Technol. 31 : 3341 – 3347 . doi:10.1021/es970512m Mariner P.E. Jin M. Studer J.E. Pope G.A. . 1999 . The first vadose zone partitioning interwell tracer test for nonaqueous phase liquid and water residual . Environ. Sci. Technol. 33 : 2825 – 2828...

... and quantifying NAPL saturation. This method was originally developed in the petroleum industry and was introduced into the contaminant hydrology literature by Jin et al. (1995) as the partitioning interwell tracer test (PITT). Partitioning tracer methods use partitioning and nonpartitioning tracers...

..., below ground surface DCT, drainable core technique DNAPL, dense nonaqueous phase liquid MIP, membrane interface probe PCE, tetrachloroethylene PITT, partitioning interwell tracer test TCE, trichloroethylene VOA, volatile organic analysis VOC, volatile organic compound P ersistent...

... method 39 Datta-Gupta and Yoon (2002) partitioning interwell tracer test permeability, NAPL saturation concentration streamline approach 40 Vega et al. (2003) production from oil reservoir permeability water cut data, travel time, prior geostatistical model comparison of Baysian vs...

... ), we apply the theory of micromixing to the interpretation of interwell tracer tests. The model has its origins in the field of chemical reaction engineering ( Zwietering, 1959 ), and similar approaches have been adopted in the field of groundwater (e.g., Rainwater et al., 1987 ; Dagan and Cvetkovic...

...-resolution reservoir properties (permeability) because the field-scale seismic data are areally dense, whereas the production data are effectively averaged over interwell spacing. The joint calibration procedure is performed using streamline-based sensitivities derived from finite-difference flow simulation...

... and found that reservoirs with poorly interconnected fractures exhibit increased flow through the reservoir matrix (pore system). In a geothermal setting, this could equate to better heat sweep across a dolostone reservoir. The implementation of tracer tests at Quackenbush Hill field would help...