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

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

Technical Project Meeting – Discussion about the progres of the drilling works and monitoring system installation

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

Mining industry.pdf

Mining journal.pdf

7th Project Meeting, Kraków, Poland

Next part of rock samples from Russia in Poland

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

Approval of the modification of the concept of performing long-reach directional drainage wells

LRDD.pdf

TM1_TM4.pdf

Preparation of the recess for the drilling rig

Drilling rig overhaul before the next drilling phase on the IIC longwall

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

Progress in development of structural models and 3D models of petrophysical and geomechanical properties

Progress in WP3.pdf

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)

https://szkolaeksploatacji.pl/sesja/metan-w-kontekscie-transformacji-sektora-weglowego-cz-ii-methane-in-the-context-of-the-transition-of-the-coal-sector-part-22/

210915-draft-agenda.pdf

SEP2021.pdf

6th Project Meeting, Kraków, Poland

Ranges of variability of the values of geomechanical parameters.pdf

Measurement of prevailing stress and geomechanical parameters completed

Ranges of variability of the values of geomechanical parameters.pdf

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.

Review of the Gob Gas Drainage Systems Implemented for Longwall Panel I-C at the KWK Staszic-Wujek Mine.pdf

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).

NUHS.pdf

NUHS2.pdf

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.

First concept of LRDD of IIC longwall developed

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

Discussions on the technical parameters and the possibilities of the drilling equipment

DIAMEC_PHC-8_29042021.pdf

5th DD-MET Project Meeting

5th DD-MET project meeting.pdf

Project extension accepted by EC, current project duration June 2019 – December 2023

Gantt Chart_project extension.pdf

We wish you all a healthy and happy festive season and an even better 2021!

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

EFE_2020fv.pdf

4th Project meeting at GIG, Katowice, Poland

4th Project meeting.pdf

3D STRUCTURAL MODELS DEVELOPED

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

THIRD SERIES OF SANDSTONE SAMPLES SAMPLES FROM MRUCKI-STASZIC MINE DELIVERED TO INIG-PIB AND GIG: 15 SAMPLES

HAPPY EASTER

ANOTHER 7 SAMPLES (5 COAL SAMPLES, 1 SANDSTONE, AND 2 MUDSTONES) FROM MRUCKI-STASZIC MINE DELIVERED TO INIG-PIB AND GIG

FIRST RESULTS OF GEOLOGICAL DATA INTERPRETATION AND INTEGRATION PRESENTED AT KWK “Murcki-Staszic”

3RD PROJECT MEETING, KRAKOW, POLAND

second series of coal samples samples from Mrucki-Staszic mine delivered to INiG-PIB and GIG: 15 samples

2nd PROJECT MEETING KWK “Murcki-Staszic”, KATOWICE, POLAND

2nd Project Meeting January 2020.pdf

Happy holiday season

FIRST RESULTS OF PETROPHISICAL AND PETROGRAPHICAL ANALYSES

COAL AND SANDSTONE SAMPLES SENT TO IMPERIAL

FIRST SERIES OF COAL SAMPLES AND GANGUE SAMPLES FROM MRUCKI-STASZIC MINE DELIVERED TO INIG-PIB AND GIG: 6 SAMPLES

KICK OFF MEETING, KRAKÓW, POLAND