...Conclusions This paper provides an integrated data-driven model combined with semi-analytical model to make well performance analysis with more efficiency and high accuracy. This workflow, incorporated with fracture precise characterization, data generation and expansion, prediction...

.... The average spacing between treated stages ranges from 85 m to 91 m, with tighter cluster spacing. Fracturing was temporarily plugged to passively treat sever deformation in two laterals consisting of 29 stages (total length of 2068m). Compared with the neighboring offset wells, the average bulk linear flow...

... Fig. 1 shows the physical model of the NFCF model. The induced fracture will close twice during the shut-in period. Abstract During water-flooding development, severe water breakthrough has been observed in fractured wells. It is essential that determine the reason for water-breakthrough...

... in coming decades in response to cleaner energy initiatives. Underground gas storage (UGS) will be key to addressing short term supply and demand dynamics during this energy transition. This paper presents a study on the XiangGuoSi (XGS) fractured carbonate, gas reservoir onshore China which had been...

.... In order to evaluate the potential benefit of propped fracture stimulation for this type of reservoir, a history match of a real geothermal injection and production doublet was made using an industry standard 3D reservoir simulation model. This model was then used to perform production and injection...

... and storage can be beneficial for deep CCS projects, where potential leakage of stored fluids along activated faults is the main concern. Since CO2 injection may induce large thermal fractures, it is important to include thermal fracturing in the analysis of seismic risk since the pressure and temperature...

... flow in porous media coal seam gas hydraulic fracturing upstream oil & gas strength shale gas complex reservoir coal specimen basin wang longino ln 2 freezing time experiment freezing-thawing cycle coal bed methane coalbed methane fluid dynamics coal basin specimen...

... Abstract Modeling of acid fracturing process is challenging because of the coupled complex effects of flow through porous media and fractures, chemical reaction in a geostatistical base, wormhole propagation, and reservoir heterogeneity. To avoid the complexity, decoupled approaches...

... contrasts. Analysis of the early-time period of such tests also can yield estimates of length and height of fractures that are induced during injection. There is however, one important parameter that cannot be estimated from IFO tests, which is the Fracture Closure Pressure (FCP) which is generally...

... During the review of a list of offshore abandoned wells, a North Sea operator identified a well where the second cement plug was too shallow to prevent fracture propagation in the event of the first cement plug experiencing a failure. A first cement plug was set on the open hole bottom...

... Abstract Much work has been done on hydraulic-fracturing as a well stimulation technique but our understanding of formation damage due to fracturing is limited. This is due to inherent complexity of shale-water interactions under subsurface conditions. Damage is triggered by cold and low...

... four 25 m thick layers with a constant porosity of 10%. Three of the layers have a permeability of 33 mD and one has a permeability of 300 mD to represent the fracture. Seal layers with various thicknesses and a permeability of 1 mD have been considered between the high permeability layers to prevent...

...; however, excessively dense well placement and hydraulic fractures interconnection is a source of well-to-well interaction which impairs production significantly. The first step to have successful and effective well completion is to understand the characteristics of the hydraulic fractures and how...

... The geomodeling of properties for each grid domain in the geological grid is necessary, as is done in conventional workflows. After geomodeling, fracture and matrix properties from the geological model are upscaled for the fracture and matrix domain, respectively, and karst features are set...

...The lattice Boltzmann method for fluids Abstract Optimal proppant placement is critical to maintaining productivity from stress-sensitive reservoirs, in which gas conductivity depends on the connectivity of the network of secondary fractures to the wellbore. In a colloquial sense...

... (4) R u n i n v , e = 1 − R i n v , e = p f − p m , a v e p f − p 0 . where ε lms and ε lfs represent the gas invaded zone matrix swelling strain and the corresponding fracture swelling strain; V for and V mor...

...Impact of Job Diagnostics for Mature Well Development Abstract Hydraulic proppant fracturing is one of the most effective tools to optimize production in the mature, low- permeability reservoirs found in the Pannonian Basin in Central Europe. Fracturing can effectively enhance production...

... Upstream Oil & Gas grid block longitudinal fracture transmissibility hydraulic fracturing perforation interval fracture conductivity perforation Modeling & Simulation transverse fracture effective virtual perforation hydraulic fracture permeability hydraulic fractured well...

... Abstract Carbonate formations, which are candidates for acid fracturing, are usually naturally fractured. The existence of fracture networks has important impacts on fracture design outcomes. Previous studies have investigated the interaction between induced and natural fractures. However...

... approximation for well drainage and investigation radii considering the nature of fractures in carbonates. The importance of this work lies in improving the initial characterization of reservoirs through the analysis of Extended Limit Tests (ELT) for reaching a greater radius of investigation; correspondingly...