西南石油大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (4): 11-14.DOI: 10.3863/j.issn.1000-

• 地质勘探 • Previous Articles     Next Articles

STOCHASTIC MODELING STUDY ON INTERLAYERS IN 91 LAYER，SEGMENT 2 OF SHAHEJIE FORMATION，TUO 7 FAULT BLOCK，SHENGTUO OILFIELD

LIN Bo1,2 DAI Jun-sheng3 JI Guo-sheng3 FENG Jian-wei3

  

  1. 1.Postdoctor Scientific Research Workstation in Shengli Oilfield，Dongying Shandong 257002，China；2.Ocean Oil Production Plant in Shengli Oilfield Ltd. Co.，Dongying Shandong 257237，China；3.College of Georesources and Information，China University of Petroleum，Dongying Shandong 257061，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-08-20 Published:2008-08-20

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Abstract:

The 91 layer，segment 2 of Shahejie Formation，Tuo 7 fault block，Shengtuo Oilfield is taken as an example，3D spatial distribution stochastic modeling of the interlayers is studied in order to find the relationship between interlayers distribution and remaining oil distribution.On the basis of geologic setting，an integrated study is conducted，with well drilling data and logging.Three interlayers types which include muddy interlayer，calcareous interlayer and physical property interlayer are confirmed.A 3D distribution modeling for interlayer is developed by sequential indicator simulation method.The model analysis reveals the distribution range of calcareous interlayer is the greatest，the distribution range of muddy interlayer is in the middle.The average thickness of muddy inter layers is 0.6m，the extending distance is 50-105m，and the distribution area is 0.01-0.05km 2.Interlayer distribution density is 0.11-0.63m/m，distribution frequency is 0.52-1.24layers/m.The average thickness of calcareous interlayers is 0.4m，the extending distance is 40-180m，and the distribution area is 0.01-0.08km2.Interlayer distribution density is 0.15-0.76m/m，distribution frequency is 0.61-1.39layers/m.There are many interlayers in 2-163，3-33，5-228，4-10，7-221，5-213 well areas，where

remaining oil could be rich.

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