An Overview of Recent Advances in Hydraulic Fracturing Technology

Veatch, R.W.; Moschovidis, Z.A.

doi:10.2118/14085-ms

Cited by 71 publications

(37 citation statements)

References 118 publications

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“…Hydraulic fracturing can be used to overcome natural barriers to the flow of fluids (gas or water) to the wellbore. Such barriers may include naturally low permeability common in shale formations or reduced permeability resulting from near wellbore damage during drilling activities 268 .…”

Section: Hydraulic Fracturingmentioning

confidence: 99%

Demographic response of Louisiana Waterthrush, a stream obligate songbird of conservation concern, to shale gas development

et al. 2018

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Section: Hydraulic Fracturingmentioning

confidence: 99%

Demographic response of Louisiana Waterthrush, a stream obligate songbird of conservation concern, to shale gas development

et al. 2018

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“…During hydraulic fracturing, energy can well explain the fracture propagation, which includes the elastic modulus, normal stress, Poisson's ratio and so on [1]. Hence, the fracture weighted formula with energy will be innovatively deduced in this section.…”

Section: The Fracture Weighted Formulamentioning

confidence: 99%

“…Hydraulic fracturing is one of the key technologies in exploitation of natural gas, which plays a major role in enhancing petroleum reserves and daily production especially from unconventional reservoirs [1]. The hydraulic fracture and branch fractures could be generated during Hydraulic fracturing, as shown in Figure 1 [2].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of the Propagation of Hydraulic and Natural Fracture Using Dijkstra’s Algorithm

Xiao

2016

Energies

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Utilization of hydraulic-fracturing technology is dramatically increasing in exploitation of natural gas extraction. However the prediction of the configuration of propagated hydraulic fracture is extremely challenging. This paper presents a numerical method of obtaining the configuration of the propagated hydraulic fracture into discrete natural fracture network system. The method is developed on the basis of weighted fracture which is derived in combination of Dijkstra's algorithm energy theory and vector method. Numerical results along with experimental data demonstrated that proposed method is capable of predicting the propagated hydraulic fracture configuration reasonably with high computation efficiency. Sensitivity analysis reveals a number of interesting observation results: the shortest path weight value decreases with increasing of fracture density and length, and increases with increasing of the angle between fractures to the maximum principal stress direction. Our method is helpful for evaluating the complexity of the discrete fracture network, to obtain the extension direction of the fracture.

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“…In order to effectively identify an optimal fracture design, detailed information about the lithology and fracturing components needs to be utilized. These data include: (1) formation permeability and porosity, (2) static reservoir pressure, (3) formation temperature, (4) thermal conductivities of formations penetrated, (5) fracture closure pressure, (6) critical net fracturing pressure, (7) formation physical properties: modulus and fracture toughness, (8) fracturing fluid apparent viscosity, (9) fracturing fluid friction data, (10) leakoff coefficient, (11) fluid thermal conductivity, (12) proppant size distribution, (13) proppant density, (14) proppant fracture conductivity as a function of fracture closure stress, proppant type, proppant size distribution, proppant concentration in the fracture, and embedment in the formation, (14) formation embedment pressure, (15) perforation configuration, (16) stratigraphy, and (17) in-situ stresses (Veatch, 1983a;Veatch et al, 1989).…”

Section: Introductionmentioning

confidence: 99%

Fracture Dissolution of Carbonate Rock: An Innovative Process for Gas Storage

Castle¹,

Falta²,

Bruce³

et al. 2006

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The goal of the project is to develop and assess the feasibility and economic viability of an innovative concept that may lead to commercialization of new gas-storage capacity near major markets. The investigation involves a new approach to developing underground gas storage in carbonate rock, which is present near major markets in many areas of the United States. Because of the lack of conventional gas storage and the projected growth in demand for storage capacity, many of these areas are likely to experience shortfalls in gas deliverability. Since depleted gas reservoirs and salt formations are nearly non-existent in many areas, alternatives to conventional methods of gas storage are required. The need for improved methods of gas storage, particularly for ways to meet peak demand, is increasing. Gas-market conditions are driving the need for higher deliverability and more flexibility in injection/withdrawal cycling. In order to meet these needs, the project involves an innovative approach to developing underground storage capacity by creating caverns in carbonate rock formations by acid dissolution. The basic concept of the aciddissolution method is to drill to depth, fracture the carbonate rock layer as needed, and then create a cavern using an aqueous acid to dissolve the carbonate rock.Assessing feasibility of the acid-dissolution method included a regional geologic investigation. Data were compiled and analyzed from carbonate formations in six states: Indiana, Ohio, Kentucky, West Virginia, Pennsylvania, and New York. To analyze the requirements for creating storage volume, the following aspects of the dissolution process were examined: weight and volume of rock to be dissolved; gas storage pressure, temperature, and volume at depth; rock solubility; and acid costs. Hydrochloric acid was determined to be the best acid to use because of low cost, high acid solubility, fast reaction rates with carbonate rock, and highly soluble products (calcium chloride) that allow for the easy removal of calcium waste from the well. Physical and chemical analysis of core samples taken from prospective geologic formations for the acid dissolution process confirmed that many of the limestone samples readily dissolved in concentrated hydrochloric acid. Further, some samples contained oily residues that may help to seal the walls of the final cavern structure. These results suggest that there exist carbonate rock formations well suited for the dissolution technology and that the presence of inert impurities had no noticeable effect on the dissolution rate for the carbonate rock.A sensitivity analysis was performed for characteristics of hydraulic fractures induced in carbonate formations to enhance the dissolution process. Multiple fracture simulations were conducted using modeling software that has a fully 3-D fracture geometry package. The simulations, which predict the distribution of fracture geometry and fracture conductivity, show that the stress difference between adjacent beds is the physical property of the f...

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An Overview of Recent Advances in Hydraulic Fracturing Technology

Cited by 71 publications

References 118 publications

Demographic response of Louisiana Waterthrush, a stream obligate songbird of conservation concern, to shale gas development

Demographic response of Louisiana Waterthrush, a stream obligate songbird of conservation concern, to shale gas development

Numerical Simulation of the Propagation of Hydraulic and Natural Fracture Using Dijkstra’s Algorithm

Fracture Dissolution of Carbonate Rock: An Innovative Process for Gas Storage

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