Abstract

2014, 33(4) 875-879 DOI: ISSN: 1004-5589 CN: 22-1111/P

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	Keywords
	capture cross section
	porosity
	inelastic scattering measurement
	carbonate reservoir
	assess- ment
	Authors
	ZHAO Qin
	MA Li-Xin
	MO Xiu-Wen
	WANG Qin-Cong
	PubMed
	Article by Zhao, Q.
	Article by Ma, L. X.
	Article by Mo, X. W.
	Article by Wang, Q. C.

Ｒesearch on explaining porosity in carbonate reservoir by capture cross section method

ZHAO Qin, MA Li-Xin, MO Xiu-Wen, WANG Qin-Cong

1. College of Geo- exploration Science and Technology，Jilin University，Changchun 130026，China; 2. Engineering Technology Institute of Northwest Oilfield Branch Company，SinoPEC，Urumchi 830011，China

Abstract：

The cracks and fracture- caves are very developed in Tahe oilfield composed mainly of carbonate reservoir，which affects the acquisition and accuracy of conventional logging data． When the conventional logging data can not be obtained，capture cross section of PND can be used to explain the porosity of reservoir． According to the relationship among CATO，saturation and porosity，the authors proceed the saturation correction of SIGMA． The results of porosity calculation is better consistent with of CNL，showing 0. 91 in correlation coefficient，which proved the efficiency of porosity calculation by SIGMA with CATO，and provided a new method of porosity inter- pretation when cracks and fracture- caves developed in carbonate reservoirs．

Keywords： capture cross section porosity inelastic scattering measurement carbonate reservoir assess- ment

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