... Abstract As an unconventional resource, shale oil is extensively buried in the Sichuan Basin. The shale oil reservoirs have a large number of horizontal bedding planes with weaker strength, and the existence of bedding planes may suppress the growth of fracture height, leading to insufficient...

... Abstract The challenges of lacustrine shale oil reservoirs include not only subsurface heterogeneity of reservoir quality and but also the effect of natural fractures on propagation of hydraulic fractures and associated fracture hits. The intercalated sandstone and shale in a gravity deposit...

... the true geology and reservoir properties inside the geology model (e.g., the thickness of the pay zone or the properties of the rocks) are not fully utilized. That information is often hidden inside the 3D geological model grid properties, and the current completion and fracturing practice cannot use 3D...

... Abstract In the unconventional oil and gas domain, shale gas development adheres to the technical concept of "tight well spacing and infill well." Infill wells, along with large-scale hydraulic fracturing, have become effective strategies for increasing shale gas production. Nevertheless...

... Abstract Predicting the pressure drop (or, equivalently, the effective permeability) across a fracture due to proppant injection is integral to the design of hydraulic fracturing treatments. This theoretical study investigates the relationship between permeability and proppant solid volume...

... Abstract Microseismic monitoring is a commonly used technique in characterizing hydraulic fractures. However, fracture network reconstruction remains challenging due to the heterogeneity and complex stress field of shale gas reservoirs. An Energy-based 3D Fracture Reconstruction method (EFR3D...

... testing coalbed methane north america government metals & mining sedimentary rock drillstem/well testing geology pressure transient analysis application influx permeability operation fracture reduction scenario aquifer influx drillstem testing flow in porous media australia...

... and completed over a 1,989-metre section. Beyond the appraisal nature of work, the observation of natural fractures and faulting coupled with geomechanical complexity posed multiple challenges to the planning, design, execution, and evaluation of Australia's largest stimulation job to date. This paper provides...

... Abstract Proper characterization of fractures is critical for evaluating the effectiveness of fracturing jobs and optimizing well performance in unconventional reservoirs, geothermal energy production, and other areas. However, accurately determining the size, shape, and orientation...

... ) storage feasibility. These models play a crucial role in estimating the integrity of the cap rock for CO 2 storage and conducting feasibility studies for hydraulic fracturing, aiming to enhance injectivity. Integrating MEM into the workflow enables a comprehensive analysis of the subsurface conditions...

... Clarkson fracture undersaturated cbm reservoir reservoir linear flow equation water production permeability Introduction While CBM development has reached a mature stage in North America, exploration and early stage development has been progressed in the Asia Pacific region. As with other...

... Abstract The principle focus of this work is on proposing a new model to evaluate the production performance of complexly-fractured well in shale reservoirs for conducting rate transient analysis (RTA) and pressure transient analysis (PTA). The model is established on the trilinear-flow...

... Abstract Most shale plays have to be hydraulically fractured to acquire commercial production. Shales are typically characterised by varying quantities of clay, carbonate and organic material, therefore each shale type has different deformational properties, which lead to different outcomes...

... Abstract Multi-stage hydraulic fracturing is a key technique used for improving well productivity in shale gas/oil reservoirs. However, the outcome of this technique is inconsistent from area to area. This is believed to be due to the rough design of hydraulic fracturing because of lack...

... ]. The temporary blocking agents include two types, fiber and granular shape. The diverting/re-orientation mechanism is that the fiber agent firstly bridge in the original old fractures, then the granular agent can further accumulate on the shaped bridge in the fracture. And the granular agent can form effective...

... Hydraulic fracture design must be optimized from the reservoir properties. The design must also consider the geological and operational constraints. For instance, the water-bearing formation below the reservoir layers must be taken into account, i.e. the fracture must be constrained to avoid...

... Abstract Utilizing the Material Point Method (MPM) and Continuous Fracture Models (CFM), a workflow is presented that combines Geophysical, Geological, and Geomechanical (3G) considerations to address engineering challenges. Fracture models are derived using geologic and geophysical information...

... Abstract The physical model and experimental data support the beneficial technology of graded proppant injection into naturally fractured reservoirs to stimulate natural fracture permeability. Injection of particles with increasing size, at poroelastic and hydraulic fracturing conditions, yield...

... Abstract Modern hydraulic fracture treatments are specifically designed to unlock reserves from particular rock types, especially in unconventional reservoirs. Progressive improvements in fracture design can be critically informed by post stimulation pressure analysis, yet this process is often...

..., the compressional tectonic setting and relative active plate movement develop faults and fractures in an unpredictable way brings extra challenge. Driven by the complexity, more and more technologies have been deployed in the development phase to better define the play. Among them, well placement with real-time...