Application of full waveform acoustic logging data to the estimation of reservoir permeability

Mathieu, Florence

doi:10.1190/1.1894317

Cited by 27 publications

(34 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Berdasarkan studi literatur, ditentukan pilihan bentuk model dari [10] Sebagaimana yang diinginkan untuk dapat menunjukan hubungan antara faktor atenuasi (1/Q) gelombang Stoneley dengan permeabilitas batuan (κ). Bentuk model batuan formasi dalam pengukuran ditunjukan pada gambar 2 dengan persamaan yang telah diturunkan sebagai berikut denga X adalah Keterangan :…”

Section: Tinjauan Pustakaunclassified

See 1 more Smart Citation

Karakteristik Gelombang Stoneley dalam Menentukan Permeabilitas Reservoir Sumur Pemboran

Kosim¹

2017

J. Pendidik. Fis. Teknol.

View full text Add to dashboard Cite

Abstract-In-situ permeability is an important factor in determining whether an economical drilling oil wells to be mined. Therefore, the calculation in determining the true value of permeability with an attempt to take a further decision, whether the industry is continued or not. Research through study literature is obtained a mathematical modeling from Matheu and Toksoz's work which contains the components of acoustic waves attenuation factor and rock permeability factor. Furthermore, by combining some of the concepts and theories, mathematical models are used for acoustic field data logs and other data which are required to get permeability. Data from the acoustic log is analyzed to determine the time delay for P, S and Stoneley waves, then determination of the speed, frequency and attenuation factor, especially for wave Stoneley. In this permeability calculations, it is assumed that the condition of the rock formations in the area of measurement is a permeable rock and contains fractures. The results show that the permeability in measurement area at a depth position indicates suitable with the data of rock state.

show abstract

Section: Tinjauan Pustakaunclassified

“…Mengacu pada persamaan model [10] tersebut diperoleh grafik hubungan antara faktor atenuasi dengan permeabilitas batuan dengan mengambil gambaran umum dari data lapangan formasi rotliegend di Jerman Utara diperoleh model grafik gambar 3.…”

Section: A Model Hubungan Faktor Atenuasi -Permeabilitasunclassified

Karakteristik Gelombang Stoneley dalam Menentukan Permeabilitas Reservoir Sumur Pemboran

Kosim¹

2017

J. Pendidik. Fis. Teknol.

View full text Add to dashboard Cite

show abstract

“…Knowing the average fracture compliance of a region from borehole measurements we may be able to assign fracture compliance to regions away from borehole based on relative scattered energy. Moreover, previous lab studies ( Pyrak-Nolte and Morris, 2000) suggest that fracture compliance and fluid conductivity are influenced by the same microscopic features and are related. In the future, fracture compliance can be a key link to estimate fracture conductivity and help us predict the permeability of the formation.…”

Section: Introductionmentioning

confidence: 99%

“…Attenuation of Stoneley waves was studied earlier by Mathieu (1984), Hornby et al (1989), Tang and Cheng (1993) and Kostek et al (1998a,b). Mathieu (1984) assumed Darcy flow in the fracture, a low frequency approximation, and studied attenuation of Stoneley waves across the fracture. However, the assumption of Darcy flow is not valid for typical logging frequencies.…”

Section: Introductionmentioning

confidence: 99%

Fracture characterization from attenuation of Stoneley waves across a fracture

Bakku

Fehler

Burns

2012

SEG Technical Program Expanded Abstracts 2012

View full text Add to dashboard Cite

SUMMARYFractures contribute significantly to the permeability of a formation. It is important to understand the fracture distribution and fluid transmissivity. Though traditional well logs can image fractures intersecting the borehole, they provide little information on the lateral extent of the fractures, away from the borehole, or the fluid transmissivity. Experiments in the past demonstrated that fracture compliance can be a good proxy to fracture fluid conductivity. We describe a method to estimate fracture compliance from the attenuation of Stoneley waves across a fracture. Solving the dispersion relation in the fracture, transmission coefficient of Stoneley waves across a fracture is studied over all frequency ranges. Based on the observations from the model, we propose that measuring the transmission coefficient near a transition frequency can help constrain fracture compliance and aperture. Comparing attenuation across a finite fracture to that of an infinitely long fracture, we show that a bound on the lateral extent of the fracture can be obtained. Given the limitation on the bandwidth of acoustic logging data, we propose using the Stoneley waves generated during micro-seismic events for fracture characterization.

show abstract

“…The complications include permeable rock (Rosenbaum, 1974;Schmitt, 1988a;Schmitt et al, 1988;Norris, 1989;Schmitt 1989), a damaged or invaded zone around the borehole or a cased borehole (Chan and Tsang, 1983;Tubman et al, 1984;Stephen et al, 1985;Tubman et al, 1986;Burns, 1986;Schmitt, 1988a;Schmitt, 1988b;Schmitt, 1989), a viscous fluid (Burns, 1988), a borehole with an irregular cross section (Willen, 1983;Nicoletis et al, 1990), a borehole in which the diameter changes along the axis (Bouchon and Schmitt, 1989), fractures intersecting the borehole (Bhasavanija, 1983;Mathieu, 1984;Stephen et al, 1985), and anisotropy. Tongtaow (1980), White and Tongtaow (1981), Tongtaow (1982), Chan and Tsang (1983), and Schmitt (1989) focused on the special case of transversely isotropy with the symmetry axis aligned with the borehole.…”

Section: Extendedmentioning

confidence: 99%

Elastic wave propagation along a borehole in an anisotropic medium

Ellefsen

1990

SEG Technical Program Expanded Abstracts 1990

View full text Add to dashboard Cite

In the first part of this thesis, several applications of perturbation theory are developed to study normal mode propagation along a borehole. This theory is used to relate first order perturbations in frequency, wavenumber, elastic moduli, densities, and locations of interfaces. Although the perturbation equation is derived for a general model with many fluid and solid layers which have any cross-sectional shape, the equation is applied to a two-layer model consisting of a fluid-filled borehole through a transversely isotropic solid (with its symmetry axis parallel to the borehole). Because analytical expressions for the displacements exist for this particular model, the terms in the perturbation equation simplify greatly. Formulas are derived to calculate (1) phase velocities for a model with slight, general anisotropy, (2) partial derivatives of either the wavenumber or frequency with respect to either an elastic modulus or density, (3) group velocity, and (4) phase velocities for a model with a slightly irregular borehole. These formulas are applicable also to models with an isotropic solid because it is a special case of a transversely isotropic solid.In the second part, the effects of anisotropy upon elastic wave propagation are determined. The wave equation is solved in the frequency-wavenumber domain with a variational method, and the solution yields the phase velocities, group velocities, pressures, and displacements for the normal modes. (The phase and group velocities obtained with this variational method match those obtained with the perturbation method indicating that both are correctly formulated and implemented.) These properties are studied for two cases: a transversely isotropic model for which the borehole has several different orientations with respect to the symmetry axis and an orthorhombic model for which the borehole is parallel to the intersection of two symmetry planes. The normal modes for these two cases show several effects which do not exist when the solid is isotropic or transversely isotropic with its symmetry axis parallel to the borehole:1. The phase velocities for the quasi-pseudo-Rayleigh, both quasi-flexural, and both quasi-screw waves do not exceed the phase velocity of the slowest qSwave. (The phase velocities of the leaky modes, which were not investigated, will exceed this threshold.)2. The two quasi-flexural waves have different phase and group velocities; the differences are greatest at low frequencies and diminish as the frequency increases. In general, the two quasi-screw waves behave similarly.3. The greater the difference between the the phase velocities of the qS-waves, the greater the difference between the phase velocities of the quasi-flexural waves at all frequencies. The two quasi-screw waves behave similarly.4. Near the limiting qS-wave velocity, the difference between the phase velocities of the two quasi-flexural waves is greater than that for the two quasi-screw waves.5. For the slow quasi-flexural wave, the particle displacements in the plane perpe...

show abstract

Application of full waveform acoustic logging data to the estimation of reservoir permeability

Cited by 27 publications

References 8 publications

Karakteristik Gelombang Stoneley dalam Menentukan Permeabilitas Reservoir Sumur Pemboran

Karakteristik Gelombang Stoneley dalam Menentukan Permeabilitas Reservoir Sumur Pemboran

Fracture characterization from attenuation of Stoneley waves across a fracture

Elastic wave propagation along a borehole in an anisotropic medium

Contact Info

Product

Resources

About