Re-Processing of 3D Seismic Data—An example of District NO.4-(2) in Karamay oilfield

Xinjiang Petroleum Geology ›› 2006, Vol. 27 ›› Issue (5): 562-563.

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Re-Processing of 3D Seismic Data—An example of District NO.4-(2) in Karamay oilfield

LI Jia-ning, HU Xue-lei, SONG Yu-mei, LI Lu

No.1 Production Plant, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China

Received:2006-02-06 Revised:2006-03-24 Online:2006-10-01 Published:2020-10-20

Abstract

Abstract: The 3D seismic data from District No.4-(2) in Karamay oilfield is mostly characterized by such poor quality as extremely low signal/noise ratio, serious surface wave and pulse interference, few effective reflection information, distinct pulse noise and undeveloped round trip echo in shallow, middle and deep strata, etc. All these bring great difficulties for the data processing. This paper adopts FOCUS and GRISYS for seismic data processing to prestack noise removal, DMO stack noise removal, prestack F-X field pre-filtering, deconvolution test, 3D RNA for improving signal/noise ratio and PR one-step migration technique, etc., and very good results have been gained.

Key words: 3D, data processing, F-X field pre-filtering, deconvolution, PR one-step technique

CLC Number:

P631.443

LI Jia-ning, HU Xue-lei, SONG Yu-mei, LI Lu. Re-Processing of 3D Seismic Data—An example of District NO.4-(2) in Karamay oilfield[J]. Xinjiang Petroleum Geology, 2006, 27(5): 562-563.

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Re-Processing of 3D Seismic Data—An example of District NO.4-(2) in Karamay oilfield

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