ÁPORKA THERMAL VILLAGE

 

Thermal water mechanics expert opinion

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To provide bathing water for the thermal village of Áporka

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The expert opinion was prepared by:

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BABÉR 2001 Design and Service Bt.

Address: 1035 Budapest, Szentendrei út 19. IV / 40

E-mail: baber@hdsnet.hu

The design documentation has been prepared:

 Dr. Árpád Lorberer hydrogeologist, okl. Engineer Geology Engineer,

Member of the Chamber of Engineers of Budapest and Pest County (No. 01-6960; V-10)

 Ferenc Lorberer Árpád is a geologist, managing director

1063 Budapest, Szondi u. 79. Fszt. 12th

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https://www.aporkainvest.com/

History and basic data

 At the end of January 2003, the staff of the Pest County Regional, Municipal, Environmental Planning and Consulting Ltd. inquired about the possibility of exploring the thermal water for balneological utilization in the village of Áporka. Based on the information received from them, BABÉR2001 Bt. Has been contacted by Balázs Berkovics, a contractor at 084 / 20-21 in the ÉNy border of the village. u. He plans to build a retired home for his real estate, which would be supplemented by a smaller local thermal spa in case of successful heat disaster exploration. According to the preliminary discussion, the Principal would require the exploration of a few hundred m3 / day of surface water at temperatures above 30 ° C. In February 2003, we contracted the preparation of a hydro water supply expert's report on the area (principle water licensing documentation).

 In order to prepare the Hévíz procurement expert opinion, we received the detailed cadastral plot of the development area 1: 2000 scale as customer data. P-2 / 02-305 prepared by PESTTERV. A settlement plan and a local copy of the local building code, we used the 1: 10,000 settlement structure, land use planning, landscape planning and layout and transport plan for further studies.

 We have processed and documented the borehole data and other archaeological geological-geothermal and hydrogeological information relating to the geological structure of the area.

The hydrogeological features of the surface-near-surface waters of the area and their deep-rooted relationships were discussed in detail (LORBERER Á. Et al. 1975-1979), but these studies did not cover studies on the natural layer-water leakage system of the Northeast part of the Danube-Tisza River Basin For the testing of thermal storage formations. Due to the hollow deep geological exploration, for some characteristics, There was a need for a targeted examination of a wider environment of 80 x 55 km. We did not aim at completeness in describing the natural features of the area, but only as much as possible in terms of clarity, as well as the determination of well location and the determination of the expected results.

Hévízföldtani study of the area around Ápara
2.1. General data, geothermal characteristics

The village of Áporka is located in the DNy part of Pest county, on the left bank of the Soroksár-Danube, in the 98-102 mBf area of ​​the Danube valley's inland waterfalls. The village is located between the villages of Kiskunlacháza and Majosháza, on the islands of Szigetszentmárton and Szigetcsép in Csepel. The geothermal ground surface temperature is approximately 11oC.

 The deepest borehole of the village is only 650 m away from the development area, with a depth of 367 m, B-13. Cadastral number III. s. Waterworks (L. fig. 5). The water temperature of the waterworks was 27.8oC in the VIKUV 1987 measure. On this basis, the local geothermal gradient is 45.77 oC / km.

 In the area of ​​the inner city of DK, approx. 1.4 km to B-10. Cadastral number 320 m II. s. In waterworks, a depth temperature of 243 in 313 m was measured in 1981, of which a gradient value of 41.53 oC / km can be calculated.

 Nearly close to the Earth's average (44 oC / km), the near-surface disturbances do not have any effect, however, in case of 2-3 times deeper heat drilling drilling, only 40 oC / km local geothermal gradient value Can be considered.

2.2. Geological structure, thermal exploration opportunities

 The geological structure of the test area is illustrated with a 1: 200,000 scale surface and top level geological charts (Figure 1-2). On the overview map of the Hungarian Geological Institute, the distribution of the most recent (neotectonic) breaking lines on RÁDAI Ö (1982-86) is based on the space-image interpretations of the Hungarian Geological Institute, and on the map of the peninsula we have separated the older neogeneic nodes where they discord Settlements older than the Lower Pannonian.

 In terms of its structure and geology, the village of Áporka is the so called " Alsónémedi ditch is located in the DNy part of the tectonic trench. This relatively young (neogene) trench structure is also recognizable in the distribution of Pliocene-Upper Plane lymph nodes, and its depth grows towards NE (towards Nagykáta). The communal depth of the basin basin before the third is the village around -2500 mBf, its development is unknown. On the north-eastern side of the ditch with a width of about 10 km, the middle-upper-upper archaeological excavations (dolomites and limestones), known from the Transdanubian Mountains, were excavated by Tököl-1, Pesterzsébet-2, Népliget-1, Mátyásföld-1, Isaszeg-1, etc. Deep boreholes. On the south side, the deep drillings of Bugyi-Ürbőpuszta, Sári, Újhartyán, Pánd and Nagykáta CH-explorers came into the formations of Dinaric-Bükk-type deep-sea, Upper-Upper and Lower-Middle-Basin basins (Bu-1 drilling directly under the upper layered reservoir formation Put on an alchemical marble). The so-called separation of the two large structure units. The "Balaton Line" (DK-virgin old-fashioned and lateral shift) can be traced back to the undiscovered deeper zones of the trench.

 Ponds of 50 to 25 million years old (eocene and oligocene), predominantly marshy development, watertight and heat-insulating sediments will settle from a few dozen to a few hundred meters in thickness to a pool basin of more than 200 million years old. Above them, the older (25-12,5 million years old) neo-geneous (Miocene) formations are quite varied, but in the narrower surroundings of Pumba, younger formations are usually absent due to post-mortality only in the Tököl-1. Drilling. Most of the pliocene strata have undergone the Gyulakeszi Riolittufa Formation of the Lower Miocene (located on the Ottoman floor) of the 19-20 million years. This is not a pyroclastic compound that is unsuitable for water procurement at the thermal bath at the Ráckeve B-59 (12-72) under the terrain 1003 M (-905.78 mBf), in the lower limb of the Lower Pannon formations, the Key-2. And the additional hydrocarbon and water exploration wells shown in Fig. 2 are directly below the upper plan.

 The Pannonian basin was older than 9-12 million years ago. Formations of the Lower Pannonic Group of Peremarton Formation (Márga F. Endrődi, F. Szolnoki Sandokő, F. Algyői) are predominantly clayey-clayey, which are unsuitable for water acquisition, only porous, debris sediments formed around the former coasts, islands and highlands. Such low-abundance abrasion conglomerates are known from the CH-exploration drill bushes in a few dozen m thicknesses on the roof of the Bugyi-Sári ridge.

 Thicker (401 m) and sandstone-developed lower stratum sediments are known only in the neighborhood of the thermal water bed of Ráckeve. Rape (860.8-998.0 m) is a 5-stage B-59 (12-72) well-bath well of the country, which is currently the only low-ply groundwater-based thermal spring of the country. Like the 3-4. As shown in the Annexes, the 42oC heat content is only alkaline hydrogen carbonate with solutes of only about 1200 mg / L; As opposed to the alkaline chloride alkaline liquids with a salt content of 3 to 9 g / L commonly found on the lower layer layer. It is only possible that its waters are recharged, their water bodies communicating with the nearby Plio-Pleistocene layer and the natural leakage flow system detected in the 70's. It is probable that in this peri-area zone the so-called " Formation of the Sandstone Formation of Újfalu, while in other areas the deposition of the clayey Algyő Formation continued in the upper span. The last one was Pécel K-48. Well provided an example at the edge of the Tunnel of the trench. There, only upper sandstone sandstone layers above the 670 m provided heat, - while the lower clay clay was only found between 837 and 1047.5 m (-614.14 -822.64 mBf).

 In the Považský region, the lower stratospheric sediments may be slightly larger than the radii of the Earth's surface at a depth of 425 m and a settlement position of at least 150 m deep, with a lying level around -1080 mBf. In the direction of the edges of the ditches of É-i and D-i, the complexion is thinned or crouched. The local geological and geological conditions do not rule out the possibility that in the area of ​​development there are also new-grassy reservoirs of the lower reservoirs, from which even hot water at 45-47 oC is possible. For such a large amount of energy (for heating) purposes, such heat sources are not suitable - they can be used for communal purposes only as domestic hot water, - but may allow for wider balneological utilization, including the thermal bathing. In the case of successful exploration and production, the total cost of a 1200 m low pressure pipeline will be reduced to approx. Estimated at 43.5 million forints.

 The top-Pannonian sediments (Transdanubian Formation Group: Újfalu Homokkő F., Zagyvai F.) of 5.2 to 9 million years, predominantly sandy, aleurite and loose sandstone, are the most important thermal storage facilities of alkaline hydrocarbon-like thermal water in the country's basin areas. In the perimeter zones, it is higher in a settlement and smaller they also have direct precipitation precipitation through their surface extrusion. The cold waters penetrating the Gödöllői hills and Százhalombatta, Ercsi, Ráckeresztúr and Kulcs (Figure 1) directly into the covered layers of the surrounding areas of Bugyi - Sári - Örkény are gradually warming and growing through the quarter - The solute content.

 While groundwater leakage is directed towards the depths, water particles naturally extract heat from the storage rocks, forming chilly areas characterized by local negative geothermal anomalies at the periphery of the desert. This is also the Pécel K-48. , With 668.2 m above sea level only 33.8 ° C, with a local geothermal gradient of only 34.12 ° C / km, which is significantly lower than the national average. Due to the cooling of the well, this well provided only surface 30 ° C of surface drainage and, due to the increased supply of cold water, intensive cultivation can also be expected to decrease the depth rock temperature, which is the termination of the "thermal water" rating (a decrease in surface water temperature below 30 ° C ).

 The local geothermal gradient values ​​around the national average in the Prahova region indicate that no such convection cooling is required at the bottom of the trench in a top-level series of nearly 700 m thick. Approximately 41-42oC of rock temperature is expected at the lower-upper boundary around -650 mBf, so a ca. From the lower 100 m section of a 750 m well, 35-36oC thermal water can be detected in case of appropriate rock formation. The estimated total cost of a thermal well screened for such an upper layer can be estimated at 27 million HUF. In the case of a disadvantageous development of the lower layer of the stratum of the stratum of the lower layer it would be possible to construct a smaller thermal spring variant (ie for the pre-drilling and geophysical measurements below the 750 m section) Total cost of HUF 33-35 million is expected.

 The upper, coarse decomposed sections of the Zagyvai Formation have a thickness of 200-300 m, they contain 20-25oC warm water for drinking water supply, so they are of no relevance from thermal geological point of view.

 The Upper Plain was settled in a sediment series, - in the local waterworks wells only 20-30 meters, and in the thermal baths of Ráckeve, 450 meters thick - 3,3-5,2 million years old pliocene formations are predominantly water purifiers (Nagyalföldi Tarkaagyag F. ), Only in the perimeter zones (eg in the Ercsi area) they are debris-developed. Above them, the surface waters of the various (river and eolian) Quarterly (Pleistocene and Holocene) sediments directly communicate with the surface waterways of the River Danube valley. Depending on the earliest pressure, temperature and water quality data of near surface water reservoirs, deep leakage in the area of ​​the prominent retreats and the "hot water inflow" from the deeper layers of the Alsónémedi ditch could be detected in close connection with the area (Neotectonic) structural breakpoints of the latest.

 Based on the information currently available, there is a greater likelihood of exploration of the coarse-skeleton-shaped lower-pannon complex in the region of Áprka, as the exclusive occurrence of the Algyő Formation characteristic of the deeper subsoil pools.

Suggestions for installing and training the heat drilling drill
 Based on the above-mentioned hévízföldtani adottságok, the most efficient thermal water exploration can be provided with a depth of 1200 m, with the exploration drilling exploring the bed of the lower panna series. In case the deeper levels would prove to be clay-marbled, only the upper sections or upper stratum layers above 750 m can be traced to the thermal well (below which the tubular hole section will be filled and excluded).

 From the point of view of the location of the recovery facilities, It is advisable to install a smaller forest spot on the plot, but this can not be solved because of the electric power line there, it is imperative to secure the mandatory protection distance. Therefore, the exploration drilling is carried out by the É-i, 084/21. u. It is recommended to dive on the site, 120 m and 160 m from the land borders, according to the attached plot plans (Figures 5-7).

 EOV coordinates of the bore point:   X = 210525    Y = 646330    Z = 99.0 mBf

 The expected strata of research drilling:

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         0 - 1 m: Holocene Plate

         1 - 40 m: Pleistocene: loose sand, river sandy gravel, clay

       40 - 65 m: Upper Pliocene Great Plain Tarragon Formation

      65 - 740 m: Felsőpannon Zagyva Formation, Sandstone Formation in Újfalu

    740 -1180 m: Alsópannon Újfalu Homokkő F. and / or Algyői F., Szolnok Sandstone Formations

  1180 -1200 m: Miocé (Sarmatian) Tari Dácittufa F. or (Ottnangi) Gyulakeszi Riolittufa Formation

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- Surface and Depth pressure rise measurement after maximum yield stage - Surface and depth sampling of water samples, complete chemistry analysis - OKK-OKI mineral water treatment test - Gas capacity measurement and gas analysis - Isotopic hydrology tests Determination of tritium content (for the assessment of contamination sensitivity of the water-bearing layers) Well-gradient pressure grading is justified only for the deeper, lower-span filtering wells, higher concentrations and gas-containing heat sources. In this case, it is also desirable to study the heavy radioactive isotope composition of the heat stream (U-, Th-, Rn-, Ra-concentrations). The stable isotopic composition of the water body (deuterium, 18C, 13C) and its 14C watercourse can provide valuable information on its genetic characteristics and replenishment characteristics, which may be important at the time of designation of the protective properties of water use, but not necessarily the They can be replaced at any time during the operation of the thermal watercourse). The detailed (cadastral) layout plan (Figure 7) shows a minimum 10 x 10 m (minimum) inner protection area to be provided around the thermal well. Government Decree No. 123/1997 (18-18) The designation of the exterior and hydrogeological protections according to the decree can only be relevant to the qualification of the already recognized and utilized thermal water because the "certified mineral water" certification of the National Medical Officer's Office (OTF-OGyGYF) is issued only for the use of thermal water heaters . 4. Conclusion We propose the installation of a water treatment plant for the elderly foreseen in the development area of ​​Áporka and for the supply of a thermal bath to the 750 m upper plan, and the installation of a hydro-drilling drill to be filtered to a maximum of 1200 m on the lower stratum layers. u. plot. The drilling is designed as a thermal waterway, with alkaline hydrogen carbonate content of 35-47 oC, low (800 - 1300 mg / L), slightly alkaline hydrocarbon balneological well-exploited, free-flow thermal water. The environmental impacts of the required thermal water use are not significant, it is possible to drain the water into the living water.