Session Managers: DENG Rongjing, Adam, ConocoPhillips China Inc.; LIU Zhaolong, RIPED, CNPC
 

This session will highlight advancements in geological theories and evaluation methods supporting coal rock gas exploration. It will address key challenges, such as the absence of a unified petroleum system across varied coal ranks and sedimentary facies, and the lack of standardised criteria for target selection and sweet spot evaluation in complex tectonic settings. Aimed at bridging fundamental geology with advanced exploration technologies, the session will promote the development of a systematic theoretical framework and technical standards for next-generation coal rock gas exploration.

Discussion topics will include:

• Reconstruction of coal rock gas accumulation mechanisms, incorporating multi-source hydrocarbon generation, multi-stage migration, and multi-scale reservoir structuring.
• Development of an integrated petroleum system model reflecting source–reservoir integration, dual-medium reservoirs, and multi-phase accumulation beyond conventional coalbed methane paradigms.
• Hydrocarbon generation and storage across coal ranks and maceral types.
• Evolution and preservation of multi-medium reservoirs under thermal and mechanical influences.
• Coupled geodynamic models of source–reservoir–seal systems in coal-bearing strata.
• Innovative geological and geophysical techniques for sweet spot identification and quantification.
• High-resolution logging interpretation and seismic inversion for reservoir mapping.
• Quantitative reservoir characterisation and predictive geostatistical modelling.
• Case studies from frontier coal-bearing basins showcasing breakthroughs in theory and evaluation technology.
• Coal rock gas enrichment mechanism, major controlling factors, dual sweet spot identification criteria, resource and exploration potential.
• Coal rock gas related new lab test techniques.

Featured Presentations: 

• Research Advances in Coal-Rock Gas: Theoretical Insights and Technological Innovations by ZHAO Qun, Director, Department of Unconventionals, Research Institute of Petroleum Exploration and Development (RIPED), CNPC

• Innovative Characterisation of Deep Coal Rock Gas Reservoirs Using Integrated 2D Nuclear Magnetic Resonance and Gamma-Ray Spectroscopy: A Case Study from the Ordos Basin by YU Daiguo, Senior Petrophysicist, SLB

• Petrophysical Model for Dynamic-to-Static Elastic Parameter Conversion in Deep Coal Rock by LUO Jiang, Doctoral Candidate, Southwest Petroleum University

ePoster presentation is available for viewing at ePoster Stations located at the Ballroom Foyer, Level 2. 
 

STATION 1
Reassessing Coal-Hosted Liquids in the Ordos Basin Evidence for Condensate-Dominant Systems and Implication for Development by ZHOU Tianqi, Senior Engineer, Department of Unconventionals, Research Institute of Petroleum Exploration and Development (RIPED), CNPC 

STATION 2
Digitalisation of Interface Management at the Program Level – Case Study of Riyas NGL Fractionation Facility by Matlaq Mahdi Alqahtani and Nawaf Alsaghir, Project Engineer, Saudi Aramco

STATION 3
Evaluation Method for Favourable Targets of Coal Rock Strata in Shahezi Formation of Xujiaweizi Fault Depression in Songliao Basin by LUO Guangdong, Senior Engineer, Project Management Department for Oil and Gas Resource Development Technical Services of Daqing Drilling

Session Managers: YU Huijuan, Jenny, Baker Hughes; WEI Yunsheng, RIPED, CNPC; LUO Yin, SLB
 

Coal Rock Gas (CRG) is an emerging unconventional resource with geological traits similar to shale gas—deep burial, high free gas content, and micro-scale migration—yet occurs within complex coal-bearing sequences. Shale development technologies and geological-engineering integration have advanced CRG progress, but large-scale, cost-effective, and sustainable development remains challenging.

Key technical issues include unclear production mechanisms, rapid post-fracturing declines, interlayer interference, and the absence of scalable development models. Recovery rates remain below 35%, particularly in structurally complex basins where economic viability is difficult without innovation.

This session will explore fluid flow and migration mechanisms in coal-bearing systems, alongside full-lifecycle optimisation strategies for green and efficient gas recovery. It aims to integrate geological insights with engineering innovations to drive lifecycle-optimised, environmentally responsible, and technically robust CRG development.

Discussion topics will include:

• Cross-scale and multi-field coupled flow and production mechanisms, including desorption–diffusion–seepage processes, fluid redistribution in multi-layer systems, dynamic pressure depletion modelling, and phase behaviour.
• Full-lifecycle development and production optimisation, covering well placement, well pattern design, spacing, type, dynamic drainage control, and enhanced gas recovery strategies tailored to diverse geological and economic conditions.
• Mechanisms of fluid flow and migration in coal-bearing systems, including multi-component coupling effects and production performance prediction.
• Multi-layer, stereoscopic development strategies for thin, stacked, and highly heterogeneous coal seams.
• Hydraulic fracturing in low-permeability coal systems, in-situ fracturing mechanisms, and development of low-water or waterless stimulation technologies.
• Estimated Ultimate Recovery (EUR) and reserve evaluation, and predictive modelling techniques.
• Drilling, completion, and production technologies: key challenges, best practices, and innovations to improve recovery efficiency.
• Production technology, including artificial lift, dewatering, formation damage mitigation, and flow assurance.
• Water management strategies, including water usage, treatment, and processing.
• Integrated geological-engineering approaches for optimised CRG development.
• Case studies demonstrating frontier developments, field applications, technological breakthroughs, and lessons learnt.

 

Featured Presentations:

• Research and Practices of Multi-stage Fracturing Stimulation in Coal Rock Gas in Erdos Basin, China by WENG Dingwei, Director of Fracturing and Acidizing Center, Research Institute of Petroleum Exploration and Development (RIPED), CNPC

• Application of Geology-Engineering Integration Development Technology in the Daji Deep Coalbed Methane Field at the Eastern Ordos Basin by TAO Ziqiang, Chief Technology Expert, PetroChinaCoalbed Methane Company Limited

• Integrated Modelling Approach to Calculate Optimum Dewatering Rate in Deeper CBM Wells: Field Implementation from Raniganj Block, India by Rachit Kumar, Deputy Manager, Production Optimisation, Essar Oil and Gas Exploration and Production Limited

Coal Rock Gas: A New Type of Unconventional Natural Gas Resource

ePoster presentation is available for viewing at ePoster Stations located at the Ballroom Foyer, Level 2. 
 

STATION 1
Refined Drainage Control Technology for Enhanced Recovery in Coal-Measure Gas Reservoirs by ZHANG Xueying, Senior Engineer, Department of Unconventionals, Research Institute of Petroleum Exploration and Development (RIPED), CNPC 

STATION 3
Energy-Focused Fracturing Technology and Practice for Coal-Rock Gas Horizontal Wells by MA Zeyuan, Engineer, Research Institute of Petroleum Exploration and Development (RIPED), CNPC 

Session Managers: WANG Guangfu, Petroleum Exploration and Production Research Institute of Sinopec; LIU Kouqi, Peking University
 

Continental shale oil is characterised by high temperature and high pressure, significant variations in geo-stress, and strong rock plasticity. The development of continental shale oil presents several challenges, including difficulty in extending and supporting fracturing cracks, localised high stress causing casing deformation in certain intervals, high decline rates in oil production, and limited estimated ultimate recovery (EUR) of single well.

This session will focus on fundamental studies, modelling, and sweet spot evaluation including the following discussion topics:

• HPHT nano/micro pore-fracture system occurrence states and phase behaviour.
• Accumulation patterns, enrichment mechanisms, geological fluid evolution dynamics, multi-scale precise geological modelling, and geological-engineering sweet spot evaluation/prediction for continental shale oil.
• Formation mechanisms and evaluation methods of primary controlling factors for sweet spots in continental shale oil.

 

Featured Presentations:

• Mechanisms Controlling Hydraulic Fracture Propagation in Continental Shale Oil Reservoirs and a New Concept of “Wide-Short Fracture” Stimulation by GONG Changping, Ph.D. Candidate, Research Institute of Petroleum Exploration and Development (RIPED), CNPC

• Investigating Wellbore Stability Challenges Resulting from Pyrite Oxidation-Induced Elevated Temperatures in Unconventional Shale Gas Drilling by Don S. Basuki, Geomechanics Advisor, PT Pertamina Hulu Energi

• Analysis of the Impact on High Pressure CO2 Injection in High-Clay Shale Oil on Oil Recovery and Shale Rock Integrity by Sherif Fakher, Assistant Professor, The American University in Cairo

Transportation pick-up from the Sheraton Grand Shanghai Pudong hotel lobby is scheduled for 1830 hrs.