Timeline
November, 2023
Unlock the key to optimal methane drainage with our comprehensive Best Practice Guidelines for Methane Drainage using Long Reach Directionally Drilled (LRDD) boreholes. These guidelines are meticulously crafted based on the insightful results derived from the DD-MET project.
November, 2023
You're invited! Join us on November 16 , 2023 during the Natural Mining Hazards conference (GZN 2023) for a dissemination workshop session on the DD-MET project. All interested parties are welcome!
October 18th, 2023
At the SESAM 2023 conference organized by INSEMEX in Bucharest, another presentation on the results of the DD-MET project took place. This time, aspects related to environmental risk were highlighted.
Fidalgo-Valverde, G.; Menéndez-Díaz, A.; Krzemień, A.; Riesgo Fernández, P.; Marqués Sierra, A.L. (2023). Environmental risk assessment in coal mining with methane degassing. 11th International Symposium on Occupational Health and Safety – SESAM 2023. National Institute for Research and Development in Mine Safety and Protection to Explosion – INSEMEX. Bucharest – Romania, October 18 2023.
Paper-43-01_Full_Paper_PDF.pdf
SESAM 2023_Preliminary Agenda.pdf
October 7th, 2023
Drilling directional holes enhances work safety and does not disrupt coal exploitation processes - another publication referring to the results of the DD-MET project has been released on nettg.pl.
October 4th, 2023
Results of the DD-MET Project were presented at the 40th Annual International Pittsburgh Coal Conference held at the TÜYAP Exhibition and Convention Center in Istanbul, Turkey. Małgorzata Słota-Valim presented the work entitled: "Investigation of the Effectiveness of Methane Drainage in a Multi-Seam Coal Mine with the Use of Long-Reach Directional Drilling - A Case Study from USCB, Poland."
September 2023
In the publication from September 28, 2023, on the nettg.pl website, we can read that drilling directional holes above the exploited coal seams is one of the most effective methods for capturing methane and, consequently, methane prevention in Polish mining industry. The tasks related to drilling directional boreholes are increasingly carried out by the Polish Mining Group (PGG S.A.), our industrial partner. This is a further implementation of the results obtained during the DD-MET project.
Aprill 2023
Technical visit of GIG, Uniovi and INiG ‘s representatives at PGG’s mine
March 2023
We encourage you to check out the latest publication that has been released on nettg.pl
The publication pertains to the results presented during the XXXII School of Underground Mining, where it was indicated that the cumulative share of methane drainage conducted through directional wells, in proportion to conventional wells, was 65:35 percent.
The Underground Mining School took place in Kraków from February 27th to March 1st, 2023. You can access the presentation through the following link:
February 2023
February 2023
Results of DD-MET Project presented at Resource Operators Conference 9-10 February, 2023 University of Wollongong, Australia.
The face to face event addressed issues relating to various aspects of modern mining operations, both surface and underground and offers the opportunity for industry experts to share research and insights.
https://ro.uow.edu.au/coal2023/
Deformation analysis in the surroundings of the roadway ahead of.pdf
ROC 23 Technical_Prog 27-01-23.docx
January 2023
Evaluation of Geomechniacal stabillity completed
December 2022
Project DD-MET mentioned in a press release PGG Magazyn; INNTECH PGG Inżynieria jutra
December 2022
Project DD-MET mentioned in a press release
November 2022
Potential failure mode analysis completed
October 2022
Endogenous fire on the longwall II/501/C
14 September 2022
Termination of Russian partner FEDERAL STATE BUDGETARY INSTITUTION OF SCIENCE INSTITUTE OF COMPREHENSIVE EXPLOITATION OF MINERAL RESOURCES RUSSIAN ACADEMY OF SCIENCES (ICEMR RAS) due to the Russia’s military aggression against Ukraine
September 2022
Results of the DD-MET project presented at The 39th Annual International Pittsburgh Coal Conference (PCC) which was held virtually September 19-22, 2022.
The PCC is the “premier” annual event focusing on all aspects of coal, energy, environment, and sustainable development. It provides a unique forum for the in-depth exchange of technical information and policy issues among all participants from industry, government, and academia throughout the world.
September 2022
Termination of cooperation with Federal State Budgetary Institution of Science Institute of comrehensive exploitattion of Mineral Resources Russian Academy of Science (ICEMR RAS)
May 2022
Project DD-MET mentioned in a press release
April 2022
Results obtained in the DD-MET project presented at School of Underground Mining (SEP):
Presentation title: Krzywienie otworów kierunkowych oraz wpływ usytuowania odcinków horyzontalnych względem frontu ściany IIC w KWK „Staszic-Wujek” na strumień objętościowy metanu w otworach oraz potencjał do wykorzystania wierceń kierunkowych w zakresie rozpoznania zalegania pokładów węgla
Authors: Krzysztof Kuczowicz, Tomasz Śpiewak, Damian Dziuba - PGG SA, oddział ZGRI
April 2022
LRDD operations in progres. After 285 m, drilling of the 1st LRDD was stopped due to pressure and the appearance of methane. The average gas (pure methane) intake from TM3 is ca. 6,0 m3CH4/min (ca. 240 m3CH4/h) at the vacuum ca. 4 kPa
February 2022
Measurement of primary stresses in the rock mass and stresses caused by the moving of the longwall face completed and induced stress changes monitoring ahead of Longwall Face No. II/501/C started
3rd February 2022
Technical Project Meeting – Discussion about the progres of the drilling works and monitoring system installation
December 2021
Results of the DD-MET project published in Russian Mining Industry and Mining Journal
Zakharov V.N., Trofimov V.A., Shlyapin A.V. Regularities in formation of stressed state in roof rocks of mined-out space during development stage. Gornaya promyshlennost = Russian Mining Industry. 2021;(6):68–75. DOI: 10.30686/1609-9192-2021-6-68-75. Zakharov V. N., Trofimov V. A., Filippov Yu. A., Shlyapin A. V. Abnormal gas phenomena in coal seams ISSN 0017-2278 Mining Journal, 2021 (2293), No 12: 80-87
7th December, 2021
7th Project Meeting, Kraków, Poland
3rd December 2021
Next part of rock samples from Russia in Poland
23rd November, 2021
Presentation of DD-MET Project Results at the Fifth International Symposium on Mine Safety Science and Engineering (ISMSSE2021)
Renata Cicha-Szot, Paweł Budak, Tadeusz Szpunar, Marcin Majkrzak: Wellbore Stability in Horizontal CBM wells: Practical solutions to Better Understand the Uncertainty in Rock Strength and Coal Heterogeneity in the Upper-Silesian Coal Basin
Renata Cicha-Szot, Grzegorz Leśniak, Tomasz Topór, Małgorzata Słota-Valim, Paweł Budak, Bartłomiej Jura, Janusz Makówka, Jacek Skiba, Marcin Karbownik, Daniel Brunner: Application of long-reach directional drilling for gas drainage of adjacent seams in coal mines with severe geological conditions
ISMSSE2021 Symposium Programme_22and23.pdf
November 2021
Approval of the modification of the concept of performing long-reach directional drainage wells
November 2021
Preparation of the recess for the drilling rig
November 2021
Drilling rig overhaul before the next drilling phase on the IIC longwall
15th October, 2021
Development of a preliminary concept for methane drainage of the IIC longwall
Development of a preliminary concept for methane drainage of the IIC longwall.pdf
September 2021
Results obtained in the DD-MET project presented at 38th Annual Virtual International Pittsburgh Coal Conference
September 2021
Results obtained in the DD-MET project presented at School of Underground Mining (SEP):
Presentation title: Experience of Zakład Górniczych Robót Inwestycyjnych with the use of directional wells for demethanation of the rock mass and further plans in field C under the DD-MET program at KWK Staszic-Wujek Ruch Murcki-Staszic
Authors: Rafał Mędrygał, Krzysztof Kuczowicz, Tomasz Śpiewak - PGG SA, ZGRI
September 2021
Progress in development of structural models and 3D models of petrophysical and geomechanical properties
https://unece.org/sites/default/files/2021-10/19.%20DDMET%20SEP2021_18092021.pdf
28th September, 2021
Presentation of DD-MET Project Results at Methane in the Context of the Transition of the Coal Sector Session conducted within School of Underground Mining (SEP)
28th September, 2021
6th Project Meeting, Kraków, Poland
Ranges of variability of the values of geomechanical parameters.pdf
September 2021
Measurement of prevailing stress and geomechanical parameters completed
Ranges of variability of the values of geomechanical parameters.pdf
September 2021
Review of the Gob Gas Drainage Systems Implemented for Longwall Panel I-C at the KWK Staszic-Wujek Mine was completed by REI – major recommendations for longwall Panel II-C were as follow:
- Based on the Mid-Term results REI recommends lateral and vertical placement of LRDD Boreholes for Longwall Panel II-C drilled in conjunction with and without Cross-Measure Boreholes, and with ZGRII’s drilling system and with a properly configured downhole directional drilling system.
- REI recommends a total of five (5) longitudinal LRDD Boreholes for gob degasification of Longwall Panel II-C drilled with a properly configured downhole directional drilling system (using ZIGRII’s drill) without any conventionally drilled Cross-Measure Boreholes. Should Cross-Measure Boreholes also be deployed for Longwall Panel II-C, tests should be performed by shutting in one of the two systems to demonstrate relative system effectiveness, and drainage efficiency.
June – August 2021
A few trials of measuring in situ 3D states of stresses were completed. The results will help design the drainage boreholes system in longwall panel IC and IIC at coal mine Staszic-Wujek. The in situ stress measurement has been performed using the “directed hydrofracturing” method (N-UHS).
July 2021
Project DD-MET mentioned in a press release
16-25 June, 2021
coring procedure completed at "Pochylnia I-C badawcza" and the " Pochylnia kamienna C badawcza". The samples were taken for USBM test and a trial of hydrodynamic test was performed in the cored borehole.
10th May, 2021
First concept of LRDD of IIC longwall developed
May 2021
Directional Drilling Solutions HGB Experience in Poland and discussion about possible implementation within DD-MET Project (Webex meeting - May 26 2021)
HGB Experience in Poland DD-MET Project May 26 2021 Distribution.pdf
April 2021
Discussions on the technical parameters and the possibilities of the drilling equipment
19th March, 2021
12 February 2021
Project extension accepted by EC, current project duration June 2019 – December 2023
December 2020
We wish you all a healthy and happy festive season and an even better 2021!
03.12.2020
DD-MET project preliminary results presented at ENERGY FUELS ENVIRONMENT 2020 Scientific Conference organized by AGH University of Science and Technology and Cracow University of Technology, Kraków (Poland)
1 – 4 December 2020 http://ef-conference.agh.edu.pl
08.10.2020
4th Project meeting at GIG, Katowice, Poland
August 2020
3D STRUCTURAL MODELS DEVELOPED
23.07.2020
DD-MET PROJECT MENTIONED AT 29th GMI Coal Mines Subcommittee Virtual Meeting IN THE PRESENTATION Challenges and Opportunities for Capture and Use of Coal Mine Methane in the COVID-19 World PRESENTED BY Jacek Skiba FROM Central Mining Institute of Katowice Poland
events_547_coal_Challenges_Opportunities_Poland_July2020.pdf
April 2020
THIRD SERIES OF SANDSTONE SAMPLES SAMPLES FROM MRUCKI-STASZIC MINE DELIVERED TO INIG-PIB AND GIG: 15 SAMPLES
April 2020
HAPPY EASTER
March 2020
ANOTHER 7 SAMPLES (5 COAL SAMPLES, 1 SANDSTONE, AND 2 MUDSTONES) FROM MRUCKI-STASZIC MINE DELIVERED TO INIG-PIB AND GIG
February 2020
FIRST RESULTS OF GEOLOGICAL DATA INTERPRETATION AND INTEGRATION PRESENTED AT KWK “Murcki-Staszic”
25.02.2020
3RD PROJECT MEETING, KRAKOW, POLAND
February 2020
second series of coal samples samples from Mrucki-Staszic mine delivered to INiG-PIB and GIG: 15 samples
28.01.2020
2nd PROJECT MEETING KWK “Murcki-Staszic”, KATOWICE, POLAND
December 2019
Happy holiday season
FIRST RESULTS OF PETROPHISICAL AND PETROGRAPHICAL ANALYSES
COAL AND SANDSTONE SAMPLES SENT TO IMPERIAL
December 2019
FIRST SERIES OF COAL SAMPLES AND GANGUE SAMPLES FROM MRUCKI-STASZIC MINE DELIVERED TO INIG-PIB AND GIG: 6 SAMPLES
01-03.07.2019
KICK OFF MEETING, KRAKÓW, POLAND
