Numerical simulation on physical composite stimulation and geothermal development performance of hot dry rock: A Case study from Matouying Uplift, China

Applied Thermal Engineering, Год журнала: 2025, Номер unknown, С. 125714 - 125714

Опубликована: Фев. 1, 2025

Язык: Английский

---

Inversion and optimization of CO2+O2in situ leaching of blasting-stimulated sandstone-type uranium deposits

Physics of Fluids, Год журнала: 2025, Номер 37(3)

Опубликована: Март 1, 2025

Using blasting to induce fracture networks within rock mass is one of the effective reservoir stimulation methods for low-permeability sandstone-type uranium deposits. Nonetheless, there remains a deficiency suitable theoretical investigate impact CO2+O2in situ leaching on blasting-stimulated In this work, reaction-flow numerical model based fractures was first established; second, simulations blasting-induced in six injection and two extraction well groups were performed. Finally, entire process simulated under various parameters predict effect CO2+O2 Results show that trend increasing then decreasing between peak pressure recovery rate, reaching its maximum at 1000 MPa. The deposits influenced by matrix permeability, O2 concentration, HCO3− average grade. grade are positively correlated with providing sufficient seepage space required material composition leaching. However, rate negatively because it reduces reaction time agent important ranking factors affecting concentration period 900 days > permeability concentration. This study serves as reference selecting optimizing technology during field tests.

Язык: Английский

---

Evolution of pore structure, fracture morphology and permeability during CO2+O2 in-situ leaching process of fractured sandstone

Energy, Год журнала: 2024, Номер unknown, С. 134348 - 134348

Опубликована: Дек. 1, 2024

Язык: Английский

---

Diagenetic and mineralogical impacts on clastic reservoir; A case study from the lower Indus Basin, Pakistan

Journal of Asian Earth Sciences, Год журнала: 2025, Номер unknown, С. 106539 - 106539

Опубликована: Март 1, 2025

Язык: Английский

---

Monitoring Land Subsidence using Sentinel-1A, Persistent Scatterer InSAR, and Machine Learning Techniques

Journal of South American Earth Sciences, Год журнала: 2025, Номер unknown, С. 105433 - 105433

Опубликована: Фев. 1, 2025

Язык: Английский

---

Genetic Types and Gas Source Analysis of Jurassic Deep Coalbed Methane in Baijiahai Uplift, Junggar Basin

ACS Omega, Год журнала: 2025, Номер 10(9), С. 9321 - 9336

Опубликована: Фев. 27, 2025

Multiple sets of source rocks are developed in the Baijiahai Uplift Junggar Basin. The gas genetic types and sources deep coalbed methane (CBM) Jurassic period inconclusive. Based on analysis geochemical characteristics, maturity, natural composition, carbon isotope rocks, combined with plate verification seismic interpretation, CBM were identified, migration path revealed. results show that three Carboniferous, Permian, have good hydrocarbon potential. organic matter mainly II2 III, evolution is low-maturity stage. atoms a mixed containing exogenous input gas. coal-type derived from humic kerogens, an average proportion 54.47%. oil-type Permian sapropelic 45.43%. In plane, closer to fault, greater clarified this study area. research helpful deepen understanding enrichment law provide references for optimization favorable exploration areas.

Язык: Английский

---

Estimating the heat transfer in fractured geothermal reservoirs

Energy, Год журнала: 2025, Номер unknown, С. 135008 - 135008

Опубликована: Март 1, 2025

Язык: Английский

---

Numerical and experimental evaluation of shear strength and consolidation properties of cohesive soils in high water table areas

Frontiers in Earth Science, Год журнала: 2025, Номер 13

Опубликована: Март 10, 2025

The geotechnical properties of soil are crucial in determining the stability foundations and construction safety regions with high groundwater levels, such as Warsak Road Peshawar, Pakistan. Due to its proximity Dam intersecting irrigation canals, area experiences a consistently water table, which significantly impacts stability, leading potential issues excessive settlement, reduced shear strength, increased structural instability. These conditions pose unique challenges for foundation making it essential develop comprehensive understanding soil’s consolidation behavior strength properties. To address these concerns, this study employs combined experimental numerical approach, aiming evaluate critical detail. phase involved collecting three undisturbed samples from each five distinct sites along Road, spaced approximately 5 km apart. were subjected standardized laboratory tests, including grain size distribution, specific gravity, Atterberg Limits, direct shear, unconfined compression, oedometer per ASTM standards. further validate findings, analysis using PLAXIS software was conducted, analytical evaluations Meyerhof Vesic bearing capacity equations. This integrated methodology provided under varying conditions, revealing variations average values site. Specifically, Site 1 exhibited an cohesion 18.22 kN/m 2 , suitable low-rise structures, whereas 2, 15.23 indicated need stabilization due potential. 3, averaging 13.3 showed higher settlement risk, necessitating deep foundations, while 4, lowest 9.94 deemed unsuitable heavy loads without reinforcement. In contrast, 5, having highest 20.2 demonstrated excellent ideal multi-story buildings other structures. results offered more accurate compared traditional methods, highlighting necessity integrating advanced techniques conventional approaches. Accordingly, targeted improvement measures recommended weak highly compressible soils ensure long-term structures region.

Язык: Английский

---

Sustainable Reservoir Management: Simulating Water Flooding to Optimize Oil Recovery in Heterogeneous Reservoirs Through the Evaluation of Relative Permeability Models

Sustainability, Год журнала: 2025, Номер 17(6), С. 2526 - 2526

Опубликована: Март 13, 2025

The relative permeability of a fluid plays vital role in numerical simulation studies multiphase flow. Several empirical models are used to estimate permeability, but these often inaccurate due differences the assumptions under which it is formulated. A specific model can significantly impact results simulation, so essential select most appropriate model. This study incorporates water flooding into several well-known classical and non-linear predictive permeability. Based on comparison models, reveal that predictions from were more closely aligned with experimental data during pre-water injection phase. However, after injection, overestimated average reservoir pressure. Due this limitation, all unable match water-cut accurately. In contrast, proposed demonstrated superior performance matching data. Compared accurately predicted cut performance. developed for sandstone reservoirs was able predict krw (the water) kro oil) low errors (RMSE = 0.028 0.01, respectively). R2 values 0.97 0.98, indicating excellent agreement results. also significant improvement accuracy injection. Additionally, provides flexibility parameter tuning solid foundation development. By improving modeling, enhances simulations efficient resource utilization reduced environmental impact. new approach improves selection development thereby enhancing

Язык: Английский

---

Chemical enhanced oil recovery in carbonate oil reservoirs using a combination of zwitterionic and cationic surfactants in the presence of different salts

Journal of Petroleum Exploration and Production Technology, Год журнала: 2025, Номер 15(4)

Опубликована: Март 17, 2025

Язык: Английский

---