On-site Fracturing Disposal of Oilfield-Waste Solids in Wilmington Field, California

Hainey, B.W.; Keck, R.G.; Smith, Michael B.; Lynch, Keith W.; Barth, J.W.

doi:10.2118/56070-pa

Cited by 24 publications

(10 citation statements)

References 12 publications

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“…Large-scale operations have taken place in the Gulf of Mexico (Reed et al 2001), Canada (Dusseault et al 1996), Alaska (Schmidt et al 1999), California (Hainey et al 1997) and the North Sea. SFI is conducted by mixing a slurry of solids and fresh or produced water and injecting it at high pressure into suitable sand formations contained within layers of low-permeability shales.…”

Section: Deep Well Injection Of Solid Wastementioning

confidence: 99%

The role of hydromechanical coupling in fractured rock engineering

Rutqvist

Stephansson

2003

Hydrogeology Journal

577

332

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This paper provides a review of hydromechanical (HM) couplings in fractured rock, with special emphasis on HM interactions as a result of or directly connected with human activities. In the early 1960s, the coupling between hydraulic and mechanical processes in fractured rock started to receive wide attention. A series of events-including dam failures, landslides, and injection-induced earthquakes-were believed to result from HM interaction. Moreover, the advent of the computer technology in the 1970s made possible the integration of nonlinear processes such as stress-permeability coupling and rock mass failure into coupled HM analysis. Coupled HM analysis is currently being applied to many geological engineering practices. One key parameter in such analysis is a good estimate of the relationship between stress and permeability. Based on available laboratory and field data it was found that the permeability of fractured rock masses tends to be most sensitive to stress changes at shallow depth (low stress) and in areas of low in situ permeability. In highly permeable fractured rock sections, fluid flow may take place in clusters of connected fractures that are locked open as a result of previous shear dislocation or partial cementation of hard mineral filling. Such locked open fractures tend to be relatively insensitive to stress and may therefore be conductive at great depths.Because of out the great variability of HM properties in fractured rock, and the difficulties in using laboratory data for deriving in situ material properties, the HM properties of fractured rock masses are best characterized in situ.

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Section: Deep Well Injection Of Solid Wastementioning

confidence: 99%

The role of hydromechanical coupling in fractured rock engineering

Rutqvist

Stephansson

2003

Hydrogeology Journal

577

332

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“…During past decades the process of hydraulic fracturing has been widely used for the stimulation of petroleum and geothermal reservoirs [ Sasaki , 1998; Economides and Nolte , 2000], the remediation of soil and groundwater aquifers [ Murdoch and Slack , 2002], the injection of waste [ Hunt et al , 1994; Hainey et al , 1999], and the measurement of in situ stress [ Engelder , 1993; Hayashi et al , 1997; Raaen et al , 2001]. Hydraulic fractures induced by fluid pressurized inside a solid host material also occur in nature as joints [ Lacazette and Engelder , 1992], veins [ Srivastava and Engelder , 1991; Al‐Aasm et al , 1995], and dikes [ Pollard , 1987; Rubin , 1995].…”

Section: Introductionmentioning

confidence: 99%

Thermal technique for controlling hydraulic fractures

Germanovich

Dyke

et al. 2007

J. Geophys. Res.

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[1] A simple technique is introduced to control hydraulic fractures in laboratory samples. This is achieved by heating or cooling samples prior to injecting the fracturing liquid, so that the induced thermal stresses govern the fracture orientation. We developed a simple theoretical model to parameterize experiments in laboratory settings and for materials that are different from ours. We also illustrate the utility of the technique with two examples: (1) mixed mode I + III hydraulic fracture propagation and (2) visualization of the fluid flow in the created fracture. In some cases, a similar technique may also be applicable for controlling the orientation of hydraulic fractures in field conditions.

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“…Typical examples are: fractured oil reservoirs [1], hydraulic fracturing for enhanced hydrocarbon production, tight gas reservoirs [2], weakly consolidated offshore sediments [3], soft coal bed methane extraction [4], geothermal energy [5,6], isolation of hazardous waste [7], measurement of in situ stresses [8], fault reactivation [9], and remediation of soil and ground water aquifers [10] to name a few.…”

Section: Introductionmentioning

confidence: 99%

An XFEM Model for Hydraulic Fracturing in Partially Saturated Rocks

Salimzadeh

Khalili

2016

E3S Web Conf.

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Hydraulic fracturing is a complex multi-physics phenomenon. Numerous analytical and numerical models of hydraulic fracturing processes have been proposed. Analytical solutions commonly are able to model the growth of a single hydraulic fracture into an initially intact, homogeneous rock mass. Numerical models are able to analyse complex problems such as multiple hydraulic fractures and fracturing in heterogeneous media. However, majority of available models are restricted to single-phase flow through fracture and permeable porous rock. This is not compatible with actual field conditions where the injected fluid does not have similar properties as the host fluid. In this study we present a fully coupled hydro-poroelastic model which incorporates two fluids i.e. fracturing fluid and host fluid. Flow through fracture is defined based on lubrication assumption, while flow through matrix is defined as Darcy flow. The fracture discontinuity in the mechanical model is captured using eXtended Finite Element Method (XFEM) while the fracture propagation criterion is defined through cohesive fracture model. The discontinuous matrix fluid velocity across fracture is modelled using leak-off loading which couples fracture flow and matrix flow. The proposed model has been discretised using standard Galerkin method, implemented in Matlab and verified against several published solutions. Multiple hydraulic fracturing simulations are performed to show the model robustness and to illustrate how problem parameters such as injection rate and rock permeability affect the hydraulic fracturing variables i.e. injection pressure, fracture aperture and fracture length. The results show the impact of partial saturation on leak-off and the fact that single-phase models may underestimate the leak-off.

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On-site Fracturing Disposal of Oilfield-Waste Solids in Wilmington Field, California

Cited by 24 publications

References 12 publications

The role of hydromechanical coupling in fractured rock engineering

The role of hydromechanical coupling in fractured rock engineering

Thermal technique for controlling hydraulic fractures

An XFEM Model for Hydraulic Fracturing in Partially Saturated Rocks

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