Application of 3D seismic coherency cube analysis technique in fault’s interpretation and sedimentary facies distinction in the Chengdao Oilfield
Fu Zhaohui1,2, Yu Shina2, Lu Youming2, Chen Fajing1
1. School of Energy Soarces, China University of Geosciences, Beijing 100083;
2. Offshore Production Factory, Shengli Oilfield Branch Company, China Petroleum and Chemical Corp., Dongying, Shandong 257237
3D seismic coherency cube analysis is a new technique developed in the recent years.It has inimitable effect in indicating geologic characteristics such as fault interpretation and sedimentary facies distinction.In order to solve two problems,namely,the fault's interpretation of the Chengbei 302 Buried Hill and sedimentary facies analysis of the Chengbei Sag,3D seismic coherency cube analysis technique was adopted in the seismic cube processing in the Chengdao Oilfield.The technique interpreted a lot of secondary faults and fractures in the Chengbei 302 Buried Hill, and distinguished distributions of sedimentary facies, sedimentary sub-facies,and sand-bodies of meandering stream deposits in the Chengbei Sag.Based on the principles of 3 D seismic coherency cube analysis technique,the study analyzed the application course of the technique on explaining faults and sedimentary facies in the Chengdao Oilfield,and summarized the main results, which showed the predominance of this technique and the wide foreground applied in oilfields.
. Application of 3D seismic coherency cube analysis technique in fault’s interpretation and sedimentary facies distinction in the Chengdao Oilfield[J]. Chinese Journal of Geology, 2009, 44(1): 315-323.