|Table of Contents|

Characteristic of Markers for the Stratigraphic Correlation and Subdivision of Guan 1+2 Sand Member in the South Block of Gudao Oilfield(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2011年第01期
Page:
84-88
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Characteristic of Markers for the Stratigraphic Correlation and Subdivision of Guan 1+2 Sand Member in the South Block of Gudao Oilfield
Author(s):
LE Da-fa1; CHEN Qing-hua2; ZHANG Fu-li3
1. Gudao Oil Production Factory, Shengli Oilfield Branch Company, China Petroleum and Chemical Corporation, Dongying 257231,Shandong, China; 2. School of Geo-resources and Information, China University of Petroleum,Qingdao 266555, Shandong, China; 3. Inst
Keywords:
Gudao Oilfield;  Guan 1+2 sand member;  fluvial facies;  correlation marker;  distributed model;  stratigraphic boundary
PACS:
TE122;P618.130.2+1
DOI:
-
Abstract:
Based on the theories of sedimentology and reservoir geology, taking Guan 1+2 sand member in the south block of Gudao Oilfield as an example, using the logging data in the condition of dense well patterns sufficiently, the type,characteristic,distribution and application of the markers for stratigraphic correlation and subdivision were studied. Firstly, the macro feature of the Guan 1+2 sand member included logging response, seismic section, etc.; secondly, the marker for stratigraphic correlation and subdivision was confirmed according to the response characteristics of induction conductivity and natural potential curves; thirdly, the confirmed markers were used to obtained the structural contour map of the top boundary of the Guan 1+2 sand member in the south block of Gudao Oilfield. The results showed that the regional marker was lack, but the local markers developed; the local markers included mudstone, sandstone, carbonate, and sand-mudstone combination; the characteristic of mudstone marker was high induction conductivity, sandstone marker was low resistivity and “box-shape” or small “bell-shape” spontaneous potential, carbonate marker was high resistivity and microresistivity, low interval transit time and spontaneous potential, sand-mudstone combination marker was strong comparability of the induction logging curves; the distributed areas of mudstone and sandstone were large, usually connected body; the distributed areas of carbonate and sand-mudstone combination markers were small, usually striped body; the composite distribution of the above four kinds of markers were all around the studied area. In general, the local markers could be used for the stratigraphic correlation and subdivision in similar area completely if the regional marker was lack.

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Last Update: 2011-03-20