RU2009117005A - METHOD FOR SEISMIC DATA PROCESSING USING DISCRETE WAVELET TRANSFORM - Google Patents
METHOD FOR SEISMIC DATA PROCESSING USING DISCRETE WAVELET TRANSFORM Download PDFInfo
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- RU2009117005A RU2009117005A RU2009117005/28A RU2009117005A RU2009117005A RU 2009117005 A RU2009117005 A RU 2009117005A RU 2009117005/28 A RU2009117005/28 A RU 2009117005/28A RU 2009117005 A RU2009117005 A RU 2009117005A RU 2009117005 A RU2009117005 A RU 2009117005A
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Abstract
Способ обработки сейсмических данных с использованием дискретного вейвлет-преобразования, включающий представление сейсмических данных в виде набора сейсмических трасс, отличающийся тем, что каждую из исходных сейсмических трасс, представленную в виде вектора отсчетов, подвергают дискретному вейвлет-преобразованию (М итераций) с получением вектора вейвлет-коэффициентов, содержащего детализирующие вейвлет-коэффициенты Kn с первого по уровень М включительно, а также гладкие вейвлет-коэффициенты последнего уровня преобразования ОМ, далее вектор вейвлет-коэффициентов разделяют на ряд векторов, каждый из которых содержит детализирующие вейвлет-коэффициенты Kn одного уровня и нули на месте всех остальных вейвлет-коэффициентов (детализирующий вектор уровня n), а также вектор, содержащий гладкие вейвлет-коэффициенты OM и нули на месте всех детализирующих коэффициентов (детализирующий вектор уровня М+1), каждый из указанных детализирующих векторов уровней с 1 по М+1, подвергают процедуре обратного дискретного вейвлет-преобразования с получением М+1 слоев детализации d1(n) и разложением (декомпозицией) таким образом исходного сейсмического сигнала на слои детализации d1(n) с различными энергетическими и частотными характеристиками; каждый из указанных слоев детализации d1(n) анализируют по их целевой значимости с учетом решаемой сейсмической задачи, после чего осуществляют выборку значимых отдельных слоев детализации вейвлет-разложения исходного сейсмического сигнала для построения их частичных сумм для последующей обработки и интерпретации сейсмических данных. A method of processing seismic data using a discrete wavelet transform, including the representation of seismic data as a set of seismic traces, characterized in that each of the original seismic traces, presented as a vector of samples, is subjected to a discrete wavelet transform (M iterations) to obtain a wavelet vector -coefficients containing detailed wavelet coefficients Kn from the first to the level M inclusive, as well as smooth wavelet coefficients of the last level of the OM transformation, yes the vector of wavelet coefficients is further divided into a series of vectors, each of which contains detailed wavelet coefficients Kn of the same level and zeros in place of all other wavelet coefficients (detailing a vector of level n), as well as a vector containing smooth wavelet coefficients OM and zeros on in the place of all the detailing coefficients (the detailing vector of the level M + 1), each of these detailing vectors of the levels 1 through M + 1 is subjected to the inverse discrete wavelet transform procedure to obtain M + 1 detail layers d1 (n) and the reduction (decomposition) of the original seismic signal in this way onto the detail layers d1 (n) with different energy and frequency characteristics; each of these detail layers d1 (n) is analyzed according to their target significance taking into account the seismic problem being solved, and then significant individual layers of detail of the wavelet decomposition of the initial seismic signal are sampled to construct their partial sums for subsequent processing and interpretation of seismic data.
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| Application Number | Priority Date | Filing Date | Title |
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| RU2009117005/28A RU2412454C2 (en) | 2009-05-04 | 2009-05-04 | Method to process seismic data using discrete wavelet transform |
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| RU2009117005/28A RU2412454C2 (en) | 2009-05-04 | 2009-05-04 | Method to process seismic data using discrete wavelet transform |
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| RU2009117005A true RU2009117005A (en) | 2010-11-10 |
| RU2412454C2 RU2412454C2 (en) | 2011-02-20 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10352145B2 (en) | 2011-03-11 | 2019-07-16 | Schlumberger Technology Corporation | Method of calibrating fracture geometry to microseismic events |
| RU2575947C2 (en) | 2011-11-04 | 2016-02-27 | Шлюмбергер Текнолоджи Б.В. | Simulation of interaction between frac job fractures in system of complex fractures |
| US10422208B2 (en) | 2011-11-04 | 2019-09-24 | Schlumberger Technology Corporation | Stacked height growth fracture modeling |
| RU2637255C2 (en) * | 2013-07-02 | 2017-12-01 | Шлюмбергер Текнолоджи Б.В. | Method for checking fracture geometry for microseismic events |
| US9677393B2 (en) * | 2013-08-28 | 2017-06-13 | Schlumberger Technology Corporation | Method for performing a stimulation operation with proppant placement at a wellsite |
| WO2016209100A1 (en) * | 2015-06-22 | 2016-12-29 | Schlumberger Technology Corporation | A computer-implemented method and a system for processing acoustic signals |
| RU2620785C1 (en) * | 2016-06-14 | 2017-05-29 | Общество с ограниченной ответственностью "Макросейс" | Method of determining the location of the microseismic focus |
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| RU2412454C2 (en) | 2011-02-20 |
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Effective date: 20200514 |