摘要
评价储层含油性时,热解参数 S_1+S_2是一项有效参数。其中 S_2相对稳定,S_1则随样品类别或露置时间的不同而发生变化。岩心样品的随钻热解分析值比较接近真实,岩屑和井壁取心样品的 S_1会明显损失。而目前多数探井取心进尺少,大多为岩屑录井。在选定区块和层位的条件下,S_1与 S_2具有确定的线性关系,这一关系式可由岩心随钻热解分析来建立。对岩屑或井壁取心样品的 S_1利用相应区块和层位的关系式进行校正,校正后的热解参数 S_1+S_2能更客观地描述储层性质,大大提高评价的可靠性。
The pyrolysis parameter of S_1+S_2 is an effective one for evaluating the hydrocarbon-bearing property of reservoir beds. Among which the S,is a relatively stable factor,and the Si could change along with different type of sample and the time with the samples laid in the open.The pyrolysis value along with drilling of a core sample is relatively authentic,and the S_1 of debris or sidewall-sampling sample_s could be lost obviously. At present most exploratory well are less in core boring and more in debris logging.In the condition of a given stratum of a given block,there is a definite linear equation between S_1 and S_2. Such an equation could be set up by the pyrolysis of core sample along with drilling.The S_1 of debris or sidewall-sampling samples is corrected by the equation of the given stratum.The corrected pyrolysis parameter of S_1+S_2 could describe hydrocarbon-besring property of the reservoir bed more objectivdy.
出处
《海相油气地质》
1996年第4期53-55,共3页
Marine Origin Petroleum Geology
关键词
热解分析
数据校正
储集层
油矿床
含油性
Pyrolytic analysis
Data correction
Reservoir research
Formation evaluation
Daqing Oil Field
