西南石油大学学报(自然科学版) ›› 2001, Vol. 23 ›› Issue (4): 1-4.DOI: 10.3863/j.issn.1000-2634.2001.04.01

• 地质勘探 •     Next Articles

THE CHARACTERISTICS AND EVALUATION OF MIDDLE & UPPER ORDOVICIAN REEF & SHOAL-RELELATED CARBONATE RESERVOIR IN TAZHONG NORTH SLOPE, TARIM BASIN

DAI Zong-yang1 ZHOU Yi2 CHEN Jing-shan1 YANG Hai-jun2 WANG Zhen-yu1   

  1. ( Southwest Petroleum Institute, Nanchong,Sichuan 637001,China
  • Received:2000-10-30 Revised:1900-01-01 Online:2001-08-20 Published:2001-08-20

Abstract:

The Middle and Upper Ordovician carbonate reef and shoal assemblae originally formed in a rimmed shelf system , and then reworked by multi-phases diagenesis and structural fracturing. It has many kinds of pore spaces and the pore-throat structure is very complicated with obvious heterogeneity. The reservoir can be divided into four types. Among them the quality of fracture type and fracture-pore type are better than others. The quality and distribution of reservoir are controlled by the depositional facies, buried solution and structural fracturing. According to the evaluation and prediction ,the favorable zones of carbonate reservoir are distributed along the upper side of ,and they exist in the east section of Tazhong 10 BELT. The No.1 Fault.

Key words: reservoir, evaluation, carbonate rock, Middle Ordovician Series, Tazhong

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