Formation mechanisms of hydraulic fracture network based on fracture
Hydraulic fracturing technology is currently the most direct way to improve the production efficiency of oil and gas. Complex fracture network, generated by hydraulic fracturing technology, is recognized as the main flow channel of oil and gas in unconventional reservoirs [[9], [10], [11]].In past decades, many analytical, numerical and …Web
اقرأ أكثرHydraulic Fracturing | U.S. Geological Survey
Hydraulic fracturing, commonly known as fracking, is the process of injecting water, sand, and/or chemicals into a well to break up underground bedrock to free up oil or gas reserves. The USGS monitors …Web
اقرأ أكثرA Review of Hydraulic Fracturing Simulation
Simply speaking, hydraulic fracturing is a process to fracture underground rocks by injecting pressurized fluid into the formation, for which a schematic illustration is given in Fig. 1.With respect to the underlying physics, hydraulic fracturing involves three basic processes: (1) deformation of rocks around the fracture; (2) fluid flow in the …Web
اقرأ أكثرHydraulic Fracturing
Hydraulic fracturing is the preferred stimulation for unconventional reservoirs, using fracturing fluid, propping material and pressure to create or restore small fractures in a …Web
اقرأ أكثرThe Investigation on Initiation and Propagation of Hydraulic
Hydraulic fracturing is a necessary technique for shale gas exploitation. In order to have efficient stimulation treatment, a complex fracture network has to be developed, whereas with rich bedding planes and natural fractures, the mechanism of forming a fracture network is not fully understood and it is so tricky to predict …Web
اقرأ أكثرExperimental Investigation on the Initiation of Hydraulic Fractures
For hydraulic fracturing treatments, the formation of field-scale FNs is a progressive growth process from local to full domain, where the fracture initiation path under the core-plunger scale plays a decisive role. On account of this, the macroscopic morphology of HFs near-wellbore and its interaction with bedding planes are discussed. ...Web
اقرأ أكثرExperimental Investigation of Hydraulic Fracturing and Stress
Our hydraulic fracturing experiments under polyaxial stress conditions show that the fractures induced in these large (193.75 mm diameter) cylindrical samples, composed of homogeneous and heterogeneous, nonporous resin, and a low-porosity-permeability greywacke, propagate in both tensile and shear orientations with respect to …Web
اقرأ أكثرFracking, shale gas and health effects: Research …
Hydraulic fracturing — commonly known as "fracking" — has led to a boom in U.S. energy production, with a number of benefits. According a 2014 report from the Federal Reserve Bank of Kansas City, …Web
اقرأ أكثرThese Five Companies are Reinventing the US Frac Fleet
The firm's research concluded that fluid end cavitation is the most undiagnosed cause of failure in the hydraulic fracturing sector. Weighing as much as a car and costing between $50,000 and $80,000, fluid ends are where the slurry of water and sand undergoes a rapid pressurization from about 100 psi to 10,000 psi.Web
اقرأ أكثرAdvances in Laboratory-Scale Hydraulic Fracturing Experiments
Hydraulic fracturing has been widely applied to stimulate the natural gas and oil production from unconventional reservoirs. To optimize the design of hydraulic fracturing in this application, an accurate estimation of the initiation and propagation of hydraulic fractures is indispensable. However, it still remains challenging as a result of the complex stress …Web
اقرأ أكثرFrontiers | Simulation of Fracturing and Well Pattern Optimization …
The fracturing and well pattern optimization of fractured reservoirs is a hot spot in petroleum engineering. In this study, taking the tight oil reservoirs of the Yanchang Formation in the Ordos Basin as an example, an optimized plan of hydraulic fracturing and well pattern deployment of the fractured tight reservoir were systematically studied using …Web
اقرأ أكثرHydraulic Fracturing Basics | American Geosciences …
During hydraulic fracturing, pressurized fluid is injected through a well into a subsurface rock layer in order to open the fractures. Hydraulic fracturing requires large volumes of water mixed with chemicals and proppants …Web
اقرأ أكثرNumerical Investigation of Multistage Fractured Horizontal Wells
Hydraulic fracturing is a key technology in unconventional reservoir production, yet many simulators only consider the single-phase flow of shale gas, ignoring the two-phase flow process caused by the retained fracturing fluid in the early stage of production. In this study, a three-dimensional fluid–gas–solid coupling reservoir model is …Web
اقرأ أكثرProbabilistic estimation of hydraulic fracture half-lengths
Hydraulic fracturing has become a widespread stimulation technology to enhance hydrocarbon production from low-permeability reservoirs (Montgomery & Smith 2010).Fracturing the zone around the wellbore will increase access to the reservoir by creating a higher permeability zone and, more importantly, by increasing the contact area …Web
اقرأ أكثرFluid Loss from Hydraulically Induced Fractures
Dynamic fluid loss tests provide the best method for simulating the fluid loss process during hydraulic fracturing. Through the use of these tests and a reasonable theoretical model for the rate of fracture growth, fracture length can be predicted with acceptable accuracy.Introduction. Successful design of hydraulic fracture treatments …Web
اقرأ أكثرStudy on the Difference of Fracture Extension in …
After hydraulic fracturing, the geometric characteristics of rock morphology is a crucial means for evaluating the effectiveness of fracture stimulation in enhancing production. In order to quantitatively …Web
اقرأ أكثرA Review of Hydraulic Fracturing Simulation
Specifically, the review will focus on three aspects: (1) the underlying physical processes involved in hydraulic fracturing; (2) the classical and modern hydraulic …Web
اقرأ أكثرProduction Decline Analysis and Hydraulic Fracture …
After multistage hydraulic fracturing of shale gas reservoir, a complex fracture network is formed near the horizontal wellbore. In postfracturing flowback and early-time production period, gas and water …Web
اقرأ أكثرUnited States hydraulic fracturing's short-cycle revolution and the
Hydraulic fracturing is a particularly environmentally damaging form of extraction, requiring huge quantities of water and sand, releasing toxic chemicals into the groundwater and air, and fragmenting and disturbing landscapes (Kreipl and Kreipl, 2017; Gallegos, 2015; Lave & Lutz, 2014). Yet capitalist logic would seem to endorse this form …Web
اقرأ أكثرPotential Health and Environmental Effects of Hydrofracking in the
Hydrofracking is a controversial oil and gas extraction technique developed in the late 1940s to gain access to fossil energy deposits previously inaccessible to drilling operations. The process, "hydraulic fracturing", literally involves the smashing of rock with millions of gallons of water--along with sand and a undisclosed assortment of …Web
اقرأ أكثرFracking: An American Success Story
Hydraulic fracturing involves pumping fluid into reservoirs to artificially induce small fractures. This process increases pathways and exposure between the wellbore and the surrounding reservoir rock, enhancing the productivity and hydrocarbon recovery of each well. Fracture stimulation fluid is typically comprised of over 99% water and sand.Web
اقرأ أكثرWith 9.5% CAGR, Hydraulic Fracturing Market Size to Surpass
Pune, India, Feb. 02, 2023 (GLOBE NEWSWIRE) -- The global hydraulic fracturing market size is projected to touch USD 28.93 billion by 2028, exhibiting a CAGR of 9.5% during the forecast period ...Web
اقرأ أكثرInteraction of natural and hydraulic fractures: the impact
Abstract The interaction of natural and hydraulic fractures may facilitate lateral fluid propagation in an unconventional reservoir resulting in fast fluid pressure transmission from treatment wells to a fault zone and potential fault shear slip reactivation and associated induced seismicity. Several induced earthquakes (up to 4.1 Mw) occurred …Web
اقرأ أكثرFrontiers | Staged Fracturing of Horizontal Wells in Continental …
The hydraulic fracturing method was used to calculate the horizontal principal stress difference (σH-σh). It showed that as the buried depth increases, σH-σh tends to decrease first and then increase. Small-scale fracturing should be used for areas with smaller σH-σh values. Fracturing construction parameters have an impact on oil ...Web
اقرأ أكثرAPI | Introduction
What is Fracking? Fracking is shorthand for hydraulic fracturing, a type of drilling that has been used commercially for 65 years. Today, the combination of advanced hydraulic fracturing and horizontal drilling, employing cutting-edge technologies, is mostly responsible for surging U.S. oil and natural gas production. Hydraulic fracturing …Web
اقرأ أكثرThe Process of Unconventional Natural Gas Production | US EPA
Hydraulic fracturing is a technique used in "unconventional" gas production. "Unconventional" reservoirs can cost-effectively produce gas only by using a special stimulation technique, like hydraulic fracturing, or other special recovery process and technology. This is often because the gas is highly dispersed in the rock, rather than …Web
اقرأ أكثرExperimental investigation on the propagation of hydraulic …
The main objective of the research is to study the effects of massive hydrate size, approaching angle and displacement on hydraulic fracture propagation. …Web
اقرأ أكثرHydraulic Fracturing
Hydraulic fracturing. James Speight, in Shale Oil and Gas Production Processes, 2020. Abstract. Hydraulic fracturing (hydraulic fracture stimulation, fraccing) is a process through which a large number of fractures are created mechanically in the rock, thus allowing the natural gas and/or crude oil trapped in subsurface formations to move …Web
اقرأ أكثرStudy on the Difference of Fracture Extension in Hydraulic Fracturing
After hydraulic fracturing, the geometric characteristics of rock morphology is a crucial means for evaluating the effectiveness of fracture stimulation in enhancing production. In order to quantitatively analyze the surface undulations of marine and continental shale morphology further following hydraulic fracturing, a method for …Web
اقرأ أكثرStudy of Interactions between Induced and Natural Fracture …
The interaction mode of induced fracture and natural fracture plays an important role in prediction of hydraulic fracture propagation. In this paper, a two-dimensional hydromechanical coupled discrete element model is first introduced in the framework of particle flow simulation, which can well take into account mechanical and …Web
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