Interpretation of data acquired by pumping test on wellfield Davor : master’s thesis

Zadatak diplomskog rada je odrediti hidrogeološke parametre vodonosnika i hidrauličke parametre zdenaca na vodocrpilištu „Davor“. Vodocrpilište sačinjava pet zdenaca za koje se iz podataka pokusnih crpljenja odredila hidraulička vodljivost, transmisivnost i jednadžba sniženja u zdencima. Transmisivnost testiranog vodonosnika kreće se u rasponu od 2022 do 2575 m2/dan, s prosječnom vrijednošću T=2335 m2/dan. Hidraulička vodljivost kreće se u rasponu od 153 do 576 m/dan, s prosječnom vrijednošću od K=340 m/dan. Jednadžba sniženja u zdencu Z-1 glasi: s=80,9Q+482Q2, optimalna količina crpljenja je procijenjena na Qopt=41,22 l/s, a radijus utjecaja je R=523,79 m. Jednadžba sniženja u zdencu Z-4 glasi: s=40,3Q+550Q2, optimalna količina crpljenja je procijenjena na Qopt=47,93 l/s, a radijus utjecaja je R=524,06 m. Jednadžba sniženja u zdencu Z-5 glasi: s=10,7Q+1360Q2, optimalna količina crpljenja je procijenjena na Qopt=46,37 l/s, a radijus utjecaja je R=541,94 m.Abstract: The task of this thesis is the calculation of hydrogeological parameters of the aquifer and the hydraulic parameters of wells in the well field, "Davor". The well field consists of five wells for which the pumping test data determine hydraulic conductivity, transmissivity and equation reductions in wells. The transmissivity of the test aquifer ranges from 2022 to 2575 m2/day, with an average value of T=2335 m2/day. Hydraulic conductivity is in the range from 153 to 576 m /day, with an average value of K=340 m/day. Drawdown equation in the well Z-1 is: s=80,9Q+482Q2, the optimal amount of pumping is estimated at Qopt=41,22 l/s, the radius of influence is R=523,79 m. Drawdown equation in the well Z-4 is: s=40,3Q+550Q2, the optimal amount of pumping is estimated at Qopt=47,93 l/s, and the radius of influence is R=524,06 m. Drawdown equation in the well Z-5 is: s=10,7Q+1360Q2, the optimal amount of pumping is estimated at Qopt=46,37 l /s, the radius of influence is R=541,94 m

Interpretation of data acquired by pumping test on wellfield Davor : master’s thesis

Zadatak diplomskog rada je odrediti hidrogeološke parametre vodonosnika i hidrauličke parametre zdenaca na vodocrpilištu „Davor“. Vodocrpilište sačinjava pet zdenaca za koje se iz podataka pokusnih crpljenja odredila hidraulička vodljivost, transmisivnost i jednadžba sniženja u zdencima. Transmisivnost testiranog vodonosnika kreće se u rasponu od 2022 do 2575 m2/dan, s prosječnom vrijednošću T=2335 m2/dan. Hidraulička vodljivost kreće se u rasponu od 153 do 576 m/dan, s prosječnom vrijednošću od K=340 m/dan. Jednadžba sniženja u zdencu Z-1 glasi: s=80,9Q+482Q2, optimalna količina crpljenja je procijenjena na Qopt=41,22 l/s, a radijus utjecaja je R=523,79 m. Jednadžba sniženja u zdencu Z-4 glasi: s=40,3Q+550Q2, optimalna količina crpljenja je procijenjena na Qopt=47,93 l/s, a radijus utjecaja je R=524,06 m. Jednadžba sniženja u zdencu Z-5 glasi: s=10,7Q+1360Q2, optimalna količina crpljenja je procijenjena na Qopt=46,37 l/s, a radijus utjecaja je R=541,94 m.Abstract: The task of this thesis is the calculation of hydrogeological parameters of the aquifer and the hydraulic parameters of wells in the well field, "Davor". The well field consists of five wells for which the pumping test data determine hydraulic conductivity, transmissivity and equation reductions in wells. The transmissivity of the test aquifer ranges from 2022 to 2575 m2/day, with an average value of T=2335 m2/day. Hydraulic conductivity is in the range from 153 to 576 m /day, with an average value of K=340 m/day. Drawdown equation in the well Z-1 is: s=80,9Q+482Q2, the optimal amount of pumping is estimated at Qopt=41,22 l/s, the radius of influence is R=523,79 m. Drawdown equation in the well Z-4 is: s=40,3Q+550Q2, the optimal amount of pumping is estimated at Qopt=47,93 l/s, and the radius of influence is R=524,06 m. Drawdown equation in the well Z-5 is: s=10,7Q+1360Q2, the optimal amount of pumping is estimated at Qopt=46,37 l /s, the radius of influence is R=541,94 m

Interpretation of data acquired by pumping test on wellfield Davor : master’s thesis

Zadatak diplomskog rada je odrediti hidrogeološke parametre vodonosnika i hidrauličke parametre zdenaca na vodocrpilištu „Davor“. Vodocrpilište sačinjava pet zdenaca za koje se iz podataka pokusnih crpljenja odredila hidraulička vodljivost, transmisivnost i jednadžba sniženja u zdencima. Transmisivnost testiranog vodonosnika kreće se u rasponu od 2022 do 2575 m2/dan, s prosječnom vrijednošću T=2335 m2/dan. Hidraulička vodljivost kreće se u rasponu od 153 do 576 m/dan, s prosječnom vrijednošću od K=340 m/dan. Jednadžba sniženja u zdencu Z-1 glasi: s=80,9Q+482Q2, optimalna količina crpljenja je procijenjena na Qopt=41,22 l/s, a radijus utjecaja je R=523,79 m. Jednadžba sniženja u zdencu Z-4 glasi: s=40,3Q+550Q2, optimalna količina crpljenja je procijenjena na Qopt=47,93 l/s, a radijus utjecaja je R=524,06 m. Jednadžba sniženja u zdencu Z-5 glasi: s=10,7Q+1360Q2, optimalna količina crpljenja je procijenjena na Qopt=46,37 l/s, a radijus utjecaja je R=541,94 m.Abstract: The task of this thesis is the calculation of hydrogeological parameters of the aquifer and the hydraulic parameters of wells in the well field, "Davor". The well field consists of five wells for which the pumping test data determine hydraulic conductivity, transmissivity and equation reductions in wells. The transmissivity of the test aquifer ranges from 2022 to 2575 m2/day, with an average value of T=2335 m2/day. Hydraulic conductivity is in the range from 153 to 576 m /day, with an average value of K=340 m/day. Drawdown equation in the well Z-1 is: s=80,9Q+482Q2, the optimal amount of pumping is estimated at Qopt=41,22 l/s, the radius of influence is R=523,79 m. Drawdown equation in the well Z-4 is: s=40,3Q+550Q2, the optimal amount of pumping is estimated at Qopt=47,93 l/s, and the radius of influence is R=524,06 m. Drawdown equation in the well Z-5 is: s=10,7Q+1360Q2, the optimal amount of pumping is estimated at Qopt=46,37 l /s, the radius of influence is R=541,94 m

Remapping of depth of e-log markers between Neogene basement and Lower/Upper Pannonian border in the Bjelovar Subdepression

<p>Within the Croatian part of the Pannonian Basin System, there are several depressions and subdepressions. A geostatistical analysis was performed in the Bjelovar Subdepression, which is part of the larger Drava Depression. Data for the analysis were obtained from structural maps of the subdepression, previously made by hand interpolation. Square grid cells (2 × 2 km) were laid over the maps. The analysis of cell data included a sufficient number of data (>700 per map) and the semivariogram analyses after which experimental and theoretical semivariograms were made. Consequently a new map set was interpolated by the Ordinary Kriging technique including the pre-Neogene palaeorelief border (‘Tg’) and e-log markers (‘Rs7’ and ‘Rs5’). New maps were subsequently compared with the older, hand-interpolated maps. It was shown that the method of transferring non-computer into computer interpolated maps via/using an artificial, regular grid of point data is an effective way of ‘digitizing’ older paper-based maps, preserving almost all of the regional information.</p