测井评价技术在威荣深层页岩气田中的应用

doi:10.13809/j.cnki.cn32-1825/te.2021.01.006

Abstract

Abstract:

The lithology, physical property, gas bearing property and other characteristics of shale gas reservoir are obviously different from those of conventional oil and gas reservoir, so the traditional conventional logging technology and the method of log interpretation can not be fully applicable. According to the geological characteristics and logging technology series of Weirong Deep Shale Gas Field, and based on the research on the logging response characteristics and “six-property” relation of the Longmaxi Formation shale reservoir, using core calibration log technique and petrophysical optimization volume model and regression analysis to carry out the research on the logging calculation method of shale reservoir geological and engineering parameters, form the calculation method of shale gas reservoir key parameters and establish the logging identification standard of shale reservoirs. The application shows that the proposed logging evaluation method has achieved good results in the evaluation of Weirong Deep Shale Reservoir.

Key words: log interpretation evaluation, shale reservoir parameters, logging response characteristics, logging series, Weirong Deep Shale Gas Field

CLC Number:

TE37

Zhong Wenjun,Xiong Liang,Li Hong,Dong Xiaoxia,Zhou Jing. Application of log evaluation technology in Weirong Deep Shale Gas Field[J].Reservoir Evaluation and Development, 2021, 11(1): 38-46.

Figures/Tables 9

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储层类别	自然伽马（API）	铀（mg/L）	铀/钾	电阻率（Ω·m）	钍/铀	密度（g/cm³）	中子（%）	备注
Ⅰ	≥130	≥10	≥4	≥20	≤2	≤2.50	≤17	中子有明显挖掘效应,中子、密度有较大的包络面积, 电阻率呈高低阻相间的锯齿状
Ⅱ	110~130	2~10	1~4	13~20	2~4	2.50~2.65	17~20	中子有挖掘效应,中子、密度有一定的包络面积,但小于Ⅰ类页岩储层段,电阻率变化较小
Ⅲ	<110	<2	<1	<13	>4	>2.65	>20	与Ⅰ、Ⅱ类页岩相比,中子、密度包络关系反转,电阻率值较低且相对稳定

Application of log evaluation technology in Weirong Deep Shale Gas Field

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