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EA200001211A1 - Морская сейсмическая система сбора данных и способ для ее реализации - Google Patents

Морская сейсмическая система сбора данных и способ для ее реализации

Info

Publication number
EA200001211A1
EA200001211A1 EA200001211A EA200001211A EA200001211A1 EA 200001211 A1 EA200001211 A1 EA 200001211A1 EA 200001211 A EA200001211 A EA 200001211A EA 200001211 A EA200001211 A EA 200001211A EA 200001211 A1 EA200001211 A1 EA 200001211A1
Authority
EA
Eurasian Patent Office
Prior art keywords
noise
water
signal
hydrophone
streamer
Prior art date
Application number
EA200001211A
Other languages
English (en)
Other versions
EA002612B1 (ru
Inventor
Али Озбек
Джеймс Мартин
Нильс Лунде
Саймон Хастингс Биттлстон
Original Assignee
Шлюмбергер Холдингз Лимитед
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Шлюмбергер Холдингз Лимитед filed Critical Шлюмбергер Холдингз Лимитед
Publication of EA200001211A1 publication Critical patent/EA200001211A1/ru
Publication of EA002612B1 publication Critical patent/EA002612B1/ru

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
    • G01V1/36—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
    • G01V1/364—Seismic filtering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
    • G01V1/201—Constructional details of seismic cables, e.g. streamers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/30—Noise handling
    • G01V2210/32—Noise reduction
    • G01V2210/324—Filtering
    • G01V2210/3246—Coherent noise, e.g. spatially coherent or predictable

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Acoustics & Sound (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

Способ для выполнения морской сейсмической разведки включает буксировку в воде над участком, подлежащим исследованию, по меньшей мере, одной сейсмоприемной косы, содержащей некоторое количество гидрофонов, распределенных по всей длине, при средних интервалах не более чем 500 см. Направляют акустические сигналы вниз через воду и в грунт под ней. Принимают гидрофонами сейсмические сигналы, отраженные от слоев в грунте под водой. Отдельно преобразуют в цифровую форму выходной сигнал каждого гидрофона. Фильтруют выходной сигнал для снижения шума, присутствующего в выходном сигнале, для формирования сигнала с пониженным содержанием шума. Процесс фильтрации используют для дополнительного ввода цифрового сигнала, по меньшей мере, одного соседнего гидрофона. Фильтрацию применяют для записей одного датчика до образования группы. Благодаря этому можно обнаружить и уменьшить когерентный шум при длине когерентности 20 м или меньше. Это позволяет снизить такой шум, как шум сейсмоприемной косы или шум волн вспучивания.Международная заявка была опубликована вместе с отчетом о международном поиске.
EA200001211A 1998-05-20 1999-05-14 Морская сейсмическая система сбора данных и способ для ее реализации EA002612B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9810706.3A GB9810706D0 (en) 1998-05-20 1998-05-20 Marine seismic acquisition system and method
PCT/GB1999/001544 WO1999060421A1 (en) 1998-05-20 1999-05-14 Marine seismic acquisition system and method

Publications (2)

Publication Number Publication Date
EA200001211A1 true EA200001211A1 (ru) 2001-06-25
EA002612B1 EA002612B1 (ru) 2002-06-27

Family

ID=10832298

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200001211A EA002612B1 (ru) 1998-05-20 1999-05-14 Морская сейсмическая система сбора данных и способ для ее реализации

Country Status (14)

Country Link
US (1) US6684160B1 (ru)
EP (1) EP1084426B1 (ru)
CN (1) CN1203323C (ru)
AU (1) AU758743B2 (ru)
BR (1) BR9911036A (ru)
CA (1) CA2327365A1 (ru)
DE (1) DE69926631D1 (ru)
EA (1) EA002612B1 (ru)
GB (2) GB9810706D0 (ru)
ID (1) ID27045A (ru)
NO (2) NO335023B1 (ru)
NZ (1) NZ507839A (ru)
OA (1) OA12191A (ru)
WO (1) WO1999060421A1 (ru)

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Also Published As

Publication number Publication date
BR9911036A (pt) 2001-02-06
GB2337592A (en) 1999-11-24
NO335023B1 (no) 2014-08-25
NO335663B1 (no) 2015-01-19
GB2337592B (en) 2000-05-03
US6684160B1 (en) 2004-01-27
AU758743B2 (en) 2003-03-27
DE69926631D1 (de) 2005-09-15
AU3942399A (en) 1999-12-06
NZ507839A (en) 2003-11-28
EP1084426A1 (en) 2001-03-21
NO20131614L (no) 2001-01-19
CN1301350A (zh) 2001-06-27
GB9810706D0 (en) 1998-07-15
GB9911155D0 (en) 1999-07-14
NO20005865L (no) 2001-01-19
NO20005865D0 (no) 2000-11-20
CN1203323C (zh) 2005-05-25
EP1084426B1 (en) 2005-08-10
EA002612B1 (ru) 2002-06-27
OA12191A (en) 2006-05-09
CA2327365A1 (en) 1999-11-25
WO1999060421A1 (en) 1999-11-25
ID27045A (id) 2001-02-22

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MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

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MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

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