Jerzy Hadro - Academia.edu (original) (raw)

Papers by Jerzy Hadro

More than 40 coal mines have been abandoned in the Upper Silesian Coal Basin (USCB) since the 198... more More than 40 coal mines have been abandoned in the Upper Silesian Coal Basin (USCB) since the 1980s. Several of these mines were gassy but only seven have been selected as prospective for abandoned mine methane (AMM) production. The newly developed methodology, which is based on the post-mining emission prognosis, was used to estimate the AMM resource potential of the USCB. Based on this study, conclusions and recommendations for the future development of AMM in the USCB have been formulated. Appropriate changes in the law, proper planning of AMM recovery and estimating AMM resources before closing the mine are considered the most critical factors. Also, AMM development in Poland may be impacted by the new EU Regulation on Methane Emission Reduction. The provisions of this regulation require enormous inventory, record-keeping and logistic work as well as large financial expenditures for measuring methane concentrations for all mines, including non-gassy mines. The regulation applies to all coal mines, as long as 50 years have not passed since their closure, while it is assumed that methane emission from gobs in closed mines lasts approximately 15 years in the USCB mining conditions.

Przegląd Geologiczny, 2013

Gas produced from coal can be subdivided into three categories: coalbed methane (CBM), coal mine ... more Gas produced from coal can be subdivided into three categories: coalbed methane (CBM), coal mine methane (CMM) and abandoned mine methane (AMM). CBM is extracted from virgin coal using wells drilled from the surface. In recent years horizontal drilling is widely used as a primary CBM recovery technique. A pair of wells-a vertical production well intersected by a horizontal multilateral well-is considered the most effective in dewatering a coal reservoir and thus enables maximizing its productivity. Although CBM world resources are huge (100-216 bcm), only a few countries produce coalbed gas commercially. While the US is still the leader, Australia has the fastest CBM production growth. It has been observed that many mature CBM plays reveal highly variable productivity, possibly due to coal heterogeneity. Therefore, CBM reserves/resources should be estimated using probabilistic methods. In spite of its substantial CBM resource potential, Poland has produced only coal mine methane (CMM) whereas significant efforts of CBM exploration conducted in the 1990s failed to flow gas in commercial quantities due to low permeability. Dart Energy operates a CBM exploration license in the Upper Silesia and has recently finished testing the CBM production pilot using a surface-to-inseam horizontal well with vertical production well intersection. This state-of-the-art CBM completion technology has been used for the first time in Poland and, hopefully, will unlock the sizeable CBM resource of the Upper Silesian Coal Basin.

EGUGA, Apr 1, 2009

Shale-gas formations are known to be associated with source rocks. Major oil and gas provinces in... more Shale-gas formations are known to be associated with source rocks. Major oil and gas provinces in Poland have been reviewed with respect to source rock quality using a petroleum play concept. As a result, three potential shale-gas plays were distinguished: (1) Silurian of the western slope of the East European Craton, (2) Carboniferous of the Fore-Sudetic Monocline, (3) Miocene of the Carpathian Foredeep Basin. Only the Silurian of the East European Craton and the Carboniferous of the Fore-Sudetic Monocline were further evaluated to delineate prospective areas as the Carpathian Foredeep Basin was not available for exploration license. The screening criteria used in this evaluation were main geochemical parameters: total organic carbon (TOC), thermal maturity and kerogen type, as well as depth, thickness and lateral extent of potential organic-rich shale formations. Three prospective areas have been delineated within the Silurian of the East European Craton: (1) Baltic Basin, (2) Podlasie Depression and (3) Lublin Basin, whereas one prospective area was high graded in the Carboniferous of the Fore-Sudetic Monocline. This evaluation was carried out based on the existing data gathered for the most part by the Polish Geological Institute. The four shale-gas prospective areas have been characterized using lithology and depositional environments, geochemical data, structural evolution and burial history of Silurian and Carboniferous strata, as well as thickness of the organic-rich shales. Published data concerning successful shale gas plays in the U.S. were collected to make a comparison with the prospective shale-gas formations of Poland. The Polish government granted several exploration concessions over the last two years in each of the prospective areas. In the initial stage of exploration activities, EurEnergy have been focused on acquisition of more detailed geochemical data (based on existing core samples), preparation of geological and structural studies as well as determination of appropriate drilling strategy.

Przegląd Geologiczny, 2008

NIZICKI R.-Zró¿nicowanie przestrzenne geometrii systemu uskoku k³odnickiego. WNoZ UOE, Sosnowiec ... more NIZICKI R.-Zró¿nicowanie przestrzenne geometrii systemu uskoku k³odnickiego. WNoZ UOE, Sosnowiec (w przygotowaniu). PTAK A.-Rozpoznanie warunków deformacji karboñskiej serii wêglonooenej w pó³nocno-wschodniej czêoeci Górnooel¹skiego Zag³êbia Wêglowego na podstawie analizy cech geometrycznych kopu³ siod³a g³ównego. WNoZ UOE, Sosnowiec (w przygotowaniu). TEPER L. 1988-Okreoelenie charakteru deformacji górotworu karboñskiego na podstawie badañ niektórych geomechanicznych cech ska³ w pó³nocno-wschodniej czêoeci Górnooel¹skiego Zag³êbia Wêglowego. Arch. G³ównego Instytutu Górnictwa, Katowice. TEPER L. 1989-Mezo-i makrotektoniczne przes³anki przesuwczych ruchów w pod³o¿u krystalicznym pó³nocno-wschodniej czêoeci GZW. Pr. Kom. Nauk. PAN o. Katowice, 14: 40-41. TEPER L. 1996-Fault dimensions and displacements in mining area: northern part of the Upper Silesian Coal Basin. [In:] Idziak A.(ed.) Tectonophysics of Mining Areas. Wyd. UOE, Katowice: 41-56. TEPER L. 1998-Wp³yw nieci¹g³ooeci pod³o¿a karbonu na sejsmotektonikê pó³nocnej czêoeci Górnooel¹skiego Zag³êbia Wêglowego. Wyd. UOE, Katowice. TEPER L. 2000-Geometry of fold arrays in the Silesian-Cracovian Region of southern Poland.

Journal of Sustainable Mining, 2014

Methane recovery is interesting not only because of its clean combustion; it is also beneficial f... more Methane recovery is interesting not only because of its clean combustion; it is also beneficial for the environment because of the reduction of the amount of methane emitted into the atmosphere, which is important because of methane's significant impact on the greenhouse effect. However, desorption of methane is a slow process, significantly dependent on the coalification of coal, its porosity and petrographic composition. Injection of carbon dioxide into the coal bed under sufficient pressure might be a factor in stimulating the efficiency of this process, asbecause of preferential sorptioncarbon dioxide displaces methane molecules previously absorbed in the coal matrix. Methods The measurements were made for Polish low-rank coal used for the analysis of methane recovery from Polish coal mines. Coal samples were collected from sites used for geological, sorption and petrographic research, as well as for the assessment of the reservoir's genetic origin CH 4 content. Experimental studies of sorption were performed with the use of the volumetric method at a lower and higher gas pressure. Results The methane isothermes show more than double the reduction of adsorption along with increasing temperature. The most significant changes of sorption capacity due to temperature variations can be seen when observing the difference in the course of the hysteresis of sorption/desorption of the gas as a function of temperature. In cases where there is a temperature of 323 K, a temperature hysteresis loop might indicate larger quantities of methane trapped in the porous structure of coal. In cases of carbon dioxide as sorbate, a similar shape of sorption isotherms occurred at both temperatures, while the temperature increase caused approximately double the reduction of sorption capacity. Also the isotherm's shape is similar for both temperatures of measurement, indicating no effect of temperature on the amount of gas within the structure of the tested coal. High-pressure isotherms of CO 2 and CH 4 are confirmed in the literature, proving that carbon dioxide is the gas that allows the best penetration of the internal structure of bituminous coal. The critical temperature of CO 2 (304.5 K) is so high, that sorption measurements can be performed at room temperatures (293, 298 K), where activated diffusion is relatively fast. Practical implications Understanding the sorption of gases is the primary issue, related to the exploitation of coal seams, when explaining the mechanism of gas deposition in coal seams and its relationship with outbursts of rocks and gases in mines. Originality/ value The results indicate successful sorption of carbon dioxide in each experiment. This provides the rationale to study the application of the coal tested to obtain methane genetic origin genetic methane with the use of the CO 2 injection.

NIZICKI R.-Zró¿nicowanie przestrzenne geometrii systemu uskoku k³odnickiego. WNoZ UOE, Sosnowiec ... more NIZICKI R.-Zró¿nicowanie przestrzenne geometrii systemu uskoku k³odnickiego. WNoZ UOE, Sosnowiec (w przygotowaniu). PTAK A.-Rozpoznanie warunków deformacji karboñskiej serii wêglonooenej w pó³nocno-wschodniej czêoeci Górnooel¹skiego Zag³êbia Wêglowego na podstawie analizy cech geometrycznych kopu³ siod³a g³ównego. WNoZ UOE, Sosnowiec (w przygotowaniu). TEPER L. 1988-Okreoelenie charakteru deformacji górotworu karboñskiego na podstawie badañ niektórych geomechanicznych cech ska³ w pó³nocno-wschodniej czêoeci Górnooel¹skiego Zag³êbia Wêglowego. Arch. G³ównego Instytutu Górnictwa, Katowice. TEPER L. 1989-Mezo-i makrotektoniczne przes³anki przesuwczych ruchów w pod³o¿u krystalicznym pó³nocno-wschodniej czêoeci GZW. Pr. Kom. Nauk. PAN o. Katowice, 14: 40-41. TEPER L. 1996-Fault dimensions and displacements in mining area: northern part of the Upper Silesian Coal Basin. [In:] Idziak A.(ed.) Tectonophysics of Mining Areas. Wyd. UOE, Katowice: 41-56. TEPER L. 1998-Wp³yw nieci¹g³ooeci pod³o¿a karbonu na sejsmotektonikê pó³nocnej czêoeci Górnooel¹skiego Zag³êbia Wêglowego. Wyd. UOE, Katowice. TEPER L. 2000-Geometry of fold arrays in the Silesian-Cracovian Region of southern Poland.

Journal of Sustainable Mining, 2014

Methane recovery is interesting not only because of its clean combustion; it is also beneficial f... more Methane recovery is interesting not only because of its clean combustion; it is also beneficial for the environment because of the reduction of the amount of methane emitted into the atmosphere, which is important because of methane's significant impact on the greenhouse effect. However, desorption of methane is a slow process, significantly dependent on the coalification of coal, its porosity and petrographic composition. Injection of carbon dioxide into the coal bed under sufficient pressure might be a factor in stimulating the efficiency of this process, asbecause of preferential sorptioncarbon dioxide displaces methane molecules previously absorbed in the coal matrix. Methods The measurements were made for Polish low-rank coal used for the analysis of methane recovery from Polish coal mines. Coal samples were collected from sites used for geological, sorption and petrographic research, as well as for the assessment of the reservoir's genetic origin CH 4 content. Experimental studies of sorption were performed with the use of the volumetric method at a lower and higher gas pressure. Results The methane isothermes show more than double the reduction of adsorption along with increasing temperature. The most significant changes of sorption capacity due to temperature variations can be seen when observing the difference in the course of the hysteresis of sorption/desorption of the gas as a function of temperature. In cases where there is a temperature of 323 K, a temperature hysteresis loop might indicate larger quantities of methane trapped in the porous structure of coal. In cases of carbon dioxide as sorbate, a similar shape of sorption isotherms occurred at both temperatures, while the temperature increase caused approximately double the reduction of sorption capacity. Also the isotherm's shape is similar for both temperatures of measurement, indicating no effect of temperature on the amount of gas within the structure of the tested coal. High-pressure isotherms of CO 2 and CH 4 are confirmed in the literature, proving that carbon dioxide is the gas that allows the best penetration of the internal structure of bituminous coal. The critical temperature of CO 2 (304.5 K) is so high, that sorption measurements can be performed at room temperatures (293, 298 K), where activated diffusion is relatively fast. Practical implications Understanding the sorption of gases is the primary issue, related to the exploitation of coal seams, when explaining the mechanism of gas deposition in coal seams and its relationship with outbursts of rocks and gases in mines. Originality/ value The results indicate successful sorption of carbon dioxide in each experiment. This provides the rationale to study the application of the coal tested to obtain methane genetic origin genetic methane with the use of the CO 2 injection.

Greenhouse Gas Control Technologies 7, 2005

The RECOPOL project is an EC-funded research and demonstration project to investigate the technic... more The RECOPOL project is an EC-funded research and demonstration project to investigate the technical and economic feasibility of storing CO 2 permanently in subsurface coal seams. This is considered to be an option for CO 2 sequestration, which will be required to meet the Kyoto protocol. The main aim is to demonstrate that CO 2 injection in coal under European conditions is feasible and that CO 2 storage is a safe and permanent solution before it can be applied on a larger scale in a socially acceptable way. An international consortium of research institutes, universities and industrial partners is carrying out the project activities. This is the first field demonstration experiment of its kind in Europe. The development of the pilot site in the Upper Silesian Basin in Poland began in summer 2003. One of the existing coalbed methane wells was cleaned up, repaired and put back into production. A new injection well was drilled at 150 m from the production well, the distance being based on the available amount of CO 2 and project time. After completion of the well with casing, cementing and perforations, the perforated zones were tested. Activities in autumn 2003 included the finalizing of the injection facilities. Production was started in the first half of June 2004 to establish a base line gas production without CO 2 injection. First injection tests took place in the first week of July 2004. During the injection period the process was monitored to assess any potential, although unlikely, leakage of CO 2 to the surface.

Shale-gas formations are known to be associated with source rocks. Major oil and gas provinces in... more Shale-gas formations are known to be associated with source rocks. Major oil and gas provinces in Poland have been reviewed with respect to source rock quality using a petroleum play concept. As a result, three potential shale-gas plays were distinguished: (1) Silurian of the western slope of the East European Craton, (2) Carboniferous of the Fore-Sudetic Monocline, (3) Miocene of the Carpathian Foredeep Basin. Only the Silurian of the East European Craton and the Carboniferous of the Fore-Sudetic Monocline were further evaluated to delineate prospective areas as the Carpathian Foredeep Basin was not available for exploration license. The screening criteria used in this evaluation were main geochemical parameters: total organic carbon (TOC), thermal maturity and kerogen type, as well as depth, thickness and lateral extent of potential organic-rich shale formations. Three prospective areas have been delineated within the Silurian of the East European Craton: (1) Baltic Basin, (2) Pod...

Prace Naukowe Instytutu Nafty i Gazu, 2010

More than 40 coal mines have been abandoned in the Upper Silesian Coal Basin (USCB) since the 198... more More than 40 coal mines have been abandoned in the Upper Silesian Coal Basin (USCB) since the 1980s. Several of these mines were gassy but only seven have been selected as prospective for abandoned mine methane (AMM) production. The newly developed methodology, which is based on the post-mining emission prognosis, was used to estimate the AMM resource potential of the USCB. Based on this study, conclusions and recommendations for the future development of AMM in the USCB have been formulated. Appropriate changes in the law, proper planning of AMM recovery and estimating AMM resources before closing the mine are considered the most critical factors. Also, AMM development in Poland may be impacted by the new EU Regulation on Methane Emission Reduction. The provisions of this regulation require enormous inventory, record-keeping and logistic work as well as large financial expenditures for measuring methane concentrations for all mines, including non-gassy mines. The regulation applies to all coal mines, as long as 50 years have not passed since their closure, while it is assumed that methane emission from gobs in closed mines lasts approximately 15 years in the USCB mining conditions.

Przegląd Geologiczny, 2013

Gas produced from coal can be subdivided into three categories: coalbed methane (CBM), coal mine ... more Gas produced from coal can be subdivided into three categories: coalbed methane (CBM), coal mine methane (CMM) and abandoned mine methane (AMM). CBM is extracted from virgin coal using wells drilled from the surface. In recent years horizontal drilling is widely used as a primary CBM recovery technique. A pair of wells-a vertical production well intersected by a horizontal multilateral well-is considered the most effective in dewatering a coal reservoir and thus enables maximizing its productivity. Although CBM world resources are huge (100-216 bcm), only a few countries produce coalbed gas commercially. While the US is still the leader, Australia has the fastest CBM production growth. It has been observed that many mature CBM plays reveal highly variable productivity, possibly due to coal heterogeneity. Therefore, CBM reserves/resources should be estimated using probabilistic methods. In spite of its substantial CBM resource potential, Poland has produced only coal mine methane (CMM) whereas significant efforts of CBM exploration conducted in the 1990s failed to flow gas in commercial quantities due to low permeability. Dart Energy operates a CBM exploration license in the Upper Silesia and has recently finished testing the CBM production pilot using a surface-to-inseam horizontal well with vertical production well intersection. This state-of-the-art CBM completion technology has been used for the first time in Poland and, hopefully, will unlock the sizeable CBM resource of the Upper Silesian Coal Basin.

EGUGA, Apr 1, 2009

Shale-gas formations are known to be associated with source rocks. Major oil and gas provinces in... more Shale-gas formations are known to be associated with source rocks. Major oil and gas provinces in Poland have been reviewed with respect to source rock quality using a petroleum play concept. As a result, three potential shale-gas plays were distinguished: (1) Silurian of the western slope of the East European Craton, (2) Carboniferous of the Fore-Sudetic Monocline, (3) Miocene of the Carpathian Foredeep Basin. Only the Silurian of the East European Craton and the Carboniferous of the Fore-Sudetic Monocline were further evaluated to delineate prospective areas as the Carpathian Foredeep Basin was not available for exploration license. The screening criteria used in this evaluation were main geochemical parameters: total organic carbon (TOC), thermal maturity and kerogen type, as well as depth, thickness and lateral extent of potential organic-rich shale formations. Three prospective areas have been delineated within the Silurian of the East European Craton: (1) Baltic Basin, (2) Podlasie Depression and (3) Lublin Basin, whereas one prospective area was high graded in the Carboniferous of the Fore-Sudetic Monocline. This evaluation was carried out based on the existing data gathered for the most part by the Polish Geological Institute. The four shale-gas prospective areas have been characterized using lithology and depositional environments, geochemical data, structural evolution and burial history of Silurian and Carboniferous strata, as well as thickness of the organic-rich shales. Published data concerning successful shale gas plays in the U.S. were collected to make a comparison with the prospective shale-gas formations of Poland. The Polish government granted several exploration concessions over the last two years in each of the prospective areas. In the initial stage of exploration activities, EurEnergy have been focused on acquisition of more detailed geochemical data (based on existing core samples), preparation of geological and structural studies as well as determination of appropriate drilling strategy.

Przegląd Geologiczny, 2008

NIZICKI R.-Zró¿nicowanie przestrzenne geometrii systemu uskoku k³odnickiego. WNoZ UOE, Sosnowiec ... more NIZICKI R.-Zró¿nicowanie przestrzenne geometrii systemu uskoku k³odnickiego. WNoZ UOE, Sosnowiec (w przygotowaniu). PTAK A.-Rozpoznanie warunków deformacji karboñskiej serii wêglonooenej w pó³nocno-wschodniej czêoeci Górnooel¹skiego Zag³êbia Wêglowego na podstawie analizy cech geometrycznych kopu³ siod³a g³ównego. WNoZ UOE, Sosnowiec (w przygotowaniu). TEPER L. 1988-Okreoelenie charakteru deformacji górotworu karboñskiego na podstawie badañ niektórych geomechanicznych cech ska³ w pó³nocno-wschodniej czêoeci Górnooel¹skiego Zag³êbia Wêglowego. Arch. G³ównego Instytutu Górnictwa, Katowice. TEPER L. 1989-Mezo-i makrotektoniczne przes³anki przesuwczych ruchów w pod³o¿u krystalicznym pó³nocno-wschodniej czêoeci GZW. Pr. Kom. Nauk. PAN o. Katowice, 14: 40-41. TEPER L. 1996-Fault dimensions and displacements in mining area: northern part of the Upper Silesian Coal Basin. [In:] Idziak A.(ed.) Tectonophysics of Mining Areas. Wyd. UOE, Katowice: 41-56. TEPER L. 1998-Wp³yw nieci¹g³ooeci pod³o¿a karbonu na sejsmotektonikê pó³nocnej czêoeci Górnooel¹skiego Zag³êbia Wêglowego. Wyd. UOE, Katowice. TEPER L. 2000-Geometry of fold arrays in the Silesian-Cracovian Region of southern Poland.

Journal of Sustainable Mining, 2014

Methane recovery is interesting not only because of its clean combustion; it is also beneficial f... more Methane recovery is interesting not only because of its clean combustion; it is also beneficial for the environment because of the reduction of the amount of methane emitted into the atmosphere, which is important because of methane's significant impact on the greenhouse effect. However, desorption of methane is a slow process, significantly dependent on the coalification of coal, its porosity and petrographic composition. Injection of carbon dioxide into the coal bed under sufficient pressure might be a factor in stimulating the efficiency of this process, asbecause of preferential sorptioncarbon dioxide displaces methane molecules previously absorbed in the coal matrix. Methods The measurements were made for Polish low-rank coal used for the analysis of methane recovery from Polish coal mines. Coal samples were collected from sites used for geological, sorption and petrographic research, as well as for the assessment of the reservoir's genetic origin CH 4 content. Experimental studies of sorption were performed with the use of the volumetric method at a lower and higher gas pressure. Results The methane isothermes show more than double the reduction of adsorption along with increasing temperature. The most significant changes of sorption capacity due to temperature variations can be seen when observing the difference in the course of the hysteresis of sorption/desorption of the gas as a function of temperature. In cases where there is a temperature of 323 K, a temperature hysteresis loop might indicate larger quantities of methane trapped in the porous structure of coal. In cases of carbon dioxide as sorbate, a similar shape of sorption isotherms occurred at both temperatures, while the temperature increase caused approximately double the reduction of sorption capacity. Also the isotherm's shape is similar for both temperatures of measurement, indicating no effect of temperature on the amount of gas within the structure of the tested coal. High-pressure isotherms of CO 2 and CH 4 are confirmed in the literature, proving that carbon dioxide is the gas that allows the best penetration of the internal structure of bituminous coal. The critical temperature of CO 2 (304.5 K) is so high, that sorption measurements can be performed at room temperatures (293, 298 K), where activated diffusion is relatively fast. Practical implications Understanding the sorption of gases is the primary issue, related to the exploitation of coal seams, when explaining the mechanism of gas deposition in coal seams and its relationship with outbursts of rocks and gases in mines. Originality/ value The results indicate successful sorption of carbon dioxide in each experiment. This provides the rationale to study the application of the coal tested to obtain methane genetic origin genetic methane with the use of the CO 2 injection.

NIZICKI R.-Zró¿nicowanie przestrzenne geometrii systemu uskoku k³odnickiego. WNoZ UOE, Sosnowiec ... more NIZICKI R.-Zró¿nicowanie przestrzenne geometrii systemu uskoku k³odnickiego. WNoZ UOE, Sosnowiec (w przygotowaniu). PTAK A.-Rozpoznanie warunków deformacji karboñskiej serii wêglonooenej w pó³nocno-wschodniej czêoeci Górnooel¹skiego Zag³êbia Wêglowego na podstawie analizy cech geometrycznych kopu³ siod³a g³ównego. WNoZ UOE, Sosnowiec (w przygotowaniu). TEPER L. 1988-Okreoelenie charakteru deformacji górotworu karboñskiego na podstawie badañ niektórych geomechanicznych cech ska³ w pó³nocno-wschodniej czêoeci Górnooel¹skiego Zag³êbia Wêglowego. Arch. G³ównego Instytutu Górnictwa, Katowice. TEPER L. 1989-Mezo-i makrotektoniczne przes³anki przesuwczych ruchów w pod³o¿u krystalicznym pó³nocno-wschodniej czêoeci GZW. Pr. Kom. Nauk. PAN o. Katowice, 14: 40-41. TEPER L. 1996-Fault dimensions and displacements in mining area: northern part of the Upper Silesian Coal Basin. [In:] Idziak A.(ed.) Tectonophysics of Mining Areas. Wyd. UOE, Katowice: 41-56. TEPER L. 1998-Wp³yw nieci¹g³ooeci pod³o¿a karbonu na sejsmotektonikê pó³nocnej czêoeci Górnooel¹skiego Zag³êbia Wêglowego. Wyd. UOE, Katowice. TEPER L. 2000-Geometry of fold arrays in the Silesian-Cracovian Region of southern Poland.

Journal of Sustainable Mining, 2014

Methane recovery is interesting not only because of its clean combustion; it is also beneficial f... more Methane recovery is interesting not only because of its clean combustion; it is also beneficial for the environment because of the reduction of the amount of methane emitted into the atmosphere, which is important because of methane's significant impact on the greenhouse effect. However, desorption of methane is a slow process, significantly dependent on the coalification of coal, its porosity and petrographic composition. Injection of carbon dioxide into the coal bed under sufficient pressure might be a factor in stimulating the efficiency of this process, asbecause of preferential sorptioncarbon dioxide displaces methane molecules previously absorbed in the coal matrix. Methods The measurements were made for Polish low-rank coal used for the analysis of methane recovery from Polish coal mines. Coal samples were collected from sites used for geological, sorption and petrographic research, as well as for the assessment of the reservoir's genetic origin CH 4 content. Experimental studies of sorption were performed with the use of the volumetric method at a lower and higher gas pressure. Results The methane isothermes show more than double the reduction of adsorption along with increasing temperature. The most significant changes of sorption capacity due to temperature variations can be seen when observing the difference in the course of the hysteresis of sorption/desorption of the gas as a function of temperature. In cases where there is a temperature of 323 K, a temperature hysteresis loop might indicate larger quantities of methane trapped in the porous structure of coal. In cases of carbon dioxide as sorbate, a similar shape of sorption isotherms occurred at both temperatures, while the temperature increase caused approximately double the reduction of sorption capacity. Also the isotherm's shape is similar for both temperatures of measurement, indicating no effect of temperature on the amount of gas within the structure of the tested coal. High-pressure isotherms of CO 2 and CH 4 are confirmed in the literature, proving that carbon dioxide is the gas that allows the best penetration of the internal structure of bituminous coal. The critical temperature of CO 2 (304.5 K) is so high, that sorption measurements can be performed at room temperatures (293, 298 K), where activated diffusion is relatively fast. Practical implications Understanding the sorption of gases is the primary issue, related to the exploitation of coal seams, when explaining the mechanism of gas deposition in coal seams and its relationship with outbursts of rocks and gases in mines. Originality/ value The results indicate successful sorption of carbon dioxide in each experiment. This provides the rationale to study the application of the coal tested to obtain methane genetic origin genetic methane with the use of the CO 2 injection.

Greenhouse Gas Control Technologies 7, 2005

The RECOPOL project is an EC-funded research and demonstration project to investigate the technic... more The RECOPOL project is an EC-funded research and demonstration project to investigate the technical and economic feasibility of storing CO 2 permanently in subsurface coal seams. This is considered to be an option for CO 2 sequestration, which will be required to meet the Kyoto protocol. The main aim is to demonstrate that CO 2 injection in coal under European conditions is feasible and that CO 2 storage is a safe and permanent solution before it can be applied on a larger scale in a socially acceptable way. An international consortium of research institutes, universities and industrial partners is carrying out the project activities. This is the first field demonstration experiment of its kind in Europe. The development of the pilot site in the Upper Silesian Basin in Poland began in summer 2003. One of the existing coalbed methane wells was cleaned up, repaired and put back into production. A new injection well was drilled at 150 m from the production well, the distance being based on the available amount of CO 2 and project time. After completion of the well with casing, cementing and perforations, the perforated zones were tested. Activities in autumn 2003 included the finalizing of the injection facilities. Production was started in the first half of June 2004 to establish a base line gas production without CO 2 injection. First injection tests took place in the first week of July 2004. During the injection period the process was monitored to assess any potential, although unlikely, leakage of CO 2 to the surface.

Shale-gas formations are known to be associated with source rocks. Major oil and gas provinces in... more Shale-gas formations are known to be associated with source rocks. Major oil and gas provinces in Poland have been reviewed with respect to source rock quality using a petroleum play concept. As a result, three potential shale-gas plays were distinguished: (1) Silurian of the western slope of the East European Craton, (2) Carboniferous of the Fore-Sudetic Monocline, (3) Miocene of the Carpathian Foredeep Basin. Only the Silurian of the East European Craton and the Carboniferous of the Fore-Sudetic Monocline were further evaluated to delineate prospective areas as the Carpathian Foredeep Basin was not available for exploration license. The screening criteria used in this evaluation were main geochemical parameters: total organic carbon (TOC), thermal maturity and kerogen type, as well as depth, thickness and lateral extent of potential organic-rich shale formations. Three prospective areas have been delineated within the Silurian of the East European Craton: (1) Baltic Basin, (2) Pod...

Prace Naukowe Instytutu Nafty i Gazu, 2010