Guest Editors
Dr. Yang Wang
Email: petroyang@cup.edu.cn
Affiliation: College of Petroleum Engineering, China University of Petroleum (Beijing), Changping, 102249, China
Homepage:
Research Interests: unconventional oil and gas development, RTA, PTA, fracture characterization and simulation

Dr. Jie Zhan
Email: zhanjie@xsyu.edu.cn
Affiliation: College of Petroleum Engineering, Xi'an Shiyou University, Xi'an, 710065, China
Homepage:
Research Interests: conventional/unconventional oil & gas development, reservoir numerical simulation, new energy development, CCUS, artificial intelligence

Dr. Cao Wei
Email: weicao@swpu.edu.cn
Affiliation: Petroleum Engineering School, Southwest Petroleum University, Chengdu, 610500, China
Homepage:
Research Interests: temperature and pressure testing, oil and gas well completion

Summary
The future of energy lies in the efficient and responsible utilization of the subsurface, encompassing both the optimization of existing hydrocarbon resources and the safe deployment of new energy systems. Geo-engineering Integration — the seamless coupling of geoscience, reservoir engineering, geomechanics, and well engineering within a digital framework — is the key enabler for this dual challenge. This integrated discipline, matured through decades of oil and gas development, is now critically extended to engineer the subsurface for carbon storage, hydrogen cycles, and geothermal exploitation. The synergy between these domains offers unparalleled insights, where advancements in one field directly benefit the other, driving innovation across the entire energy spectrum.
This Special Issue, "Geo-engineering Integration: From Conventional Reservoirs to Energy Transition" aims to capture this convergence. It will highlight research and applications where integrated workflows, digitalization, and cross-disciplinary learnings are used to maximize recovery, minimize environmental impact, and unlock new subsurface potential. We seek contributions that demonstrate how a unified geo-engineering approach addresses shared challenges—such as reservoir characterization, fluid flow prediction, well integrity, and geomechanical risks—whether for producing hydrocarbons, storing gases, or extracting heat.
Topics of interest for this Special Issue include, but are not limited to:
· Integrated subsurface modeling and characterization for complex reservoirs and storage sites.
· Advanced well engineering and integrity management for production, injection, and storage.
· Data-driven reservoir management, monitoring, and optimization for both EOR and energy storage.
· Coupled geomechanical simulations for hydraulic fracturing, fault stability, and containment assurance.
· Digital twins, AI, and IoT applications in field lifecycle management.
· Case studies of integrated projects in unconventional resources, CCUS-EOR, gas storage, or geothermal development.
· Techno-economic and risk assessment frameworks for integrated subsurface projects.
Keywords
geo-engineering integration, reservoir management, digital subsurface, CCUS, geothermal, energy transition, unconventional resources.