本文選題：熱物理性質(zhì) + 熱導(dǎo)率��； 參考：《地球科學(xué)進(jìn)展》2017年10期

【摘要】：巖石熱物理性質(zhì)的基礎(chǔ)研究大致經(jīng)歷了4個(gè)階段,已廣泛應(yīng)用于巖石圈熱結(jié)構(gòu)、沉積盆地?zé)嵫莼贰r土工程、地?zé)岬阮I(lǐng)域,近年來(lái)在油氣領(lǐng)域的科學(xué)問(wèn)題上備受關(guān)注。在歸納總結(jié)巖石熱物理性質(zhì)當(dāng)前研究進(jìn)展的基礎(chǔ)上,對(duì)未來(lái)的發(fā)展趨勢(shì)進(jìn)行了展望。熱導(dǎo)率是表征巖石熱物理性質(zhì)最重要的參數(shù),其獲取方法以室內(nèi)實(shí)驗(yàn)室測(cè)量為主,測(cè)量方法有穩(wěn)態(tài)法和非穩(wěn)態(tài)法兩大類。此外還發(fā)展了一些基于圓柱形熱源探管、圓盤形熱源探管、球形熱源探管的原位點(diǎn)測(cè)方法和基于數(shù)理統(tǒng)計(jì)的預(yù)測(cè)方法和模型。學(xué)者們通過(guò)大量實(shí)驗(yàn)探討了巖石熱導(dǎo)率參數(shù)與其他物理性質(zhì)之間的內(nèi)在關(guān)系,并以火山巖、碳酸鹽巖、碎屑巖等常見(jiàn)巖石實(shí)驗(yàn)結(jié)果驗(yàn)證其存在的一般規(guī)律。研究表明巖石的熱導(dǎo)率受多種因素影響,巖石學(xué)特征是其中最重要的因素,孔隙度、含流體性質(zhì)、聲學(xué)特性也與之密切相關(guān),同時(shí)會(huì)受到溫度、壓力、各向異性的影響�？v觀巖石熱物理性質(zhì)的研究現(xiàn)狀,認(rèn)為在油氣領(lǐng)域有以下發(fā)展趨勢(shì):首先,頁(yè)巖氣作為目前油氣勘探的熱點(diǎn),其形成機(jī)理和成藏過(guò)程受頁(yè)巖熱物理性質(zhì)的控制,但頁(yè)巖熱導(dǎo)率與有機(jī)孔、有機(jī)碳含量、含氣量、可壓裂特征間的關(guān)系還未可知,因此探索含氣頁(yè)巖的熱物理性質(zhì)是一大研究方向。其次,大數(shù)據(jù)研究是大勢(shì)所趨,盡管巖石熱學(xué)參數(shù)的數(shù)據(jù)庫(kù)在不斷擴(kuò)大,但要想得到準(zhǔn)確的巖石原位熱導(dǎo)率大數(shù)據(jù)庫(kù),在井中完成熱導(dǎo)率原位連續(xù)測(cè)量則是最好的方法。因此發(fā)展基于巖石熱物理性質(zhì)的測(cè)井方法原理和儀器研究是另一大發(fā)展趨勢(shì)。
[Abstract]:The basic research on the thermal physical properties of rocks has been widely used in the fields of lithospheric thermal structure, thermal evolution history of sedimentary basins, geotechnical engineering, geothermal, and so on. In recent years, it has attracted much attention in the field of oil and gas. On the basis of summing up the current research progress of rock thermal physical properties, the future development trend is prospected. Thermal conductivity is the most important parameter to characterize the thermophysical properties of rock. The main methods for obtaining thermal conductivity are indoor laboratory measurements. There are two kinds of measurement methods: steady-state method and unsteady-state method. In addition, some in situ point measurement methods based on cylindrical heat source probe, disk heat source probe and spherical heat source probe are developed, as well as prediction methods and models based on mathematical statistics. The relationship between thermal conductivity parameters and other physical properties of rocks is discussed by a large number of experiments, and the general laws of their existence are verified by the experimental results of volcanic rocks, carbonate rocks and clastic rocks. The results show that the thermal conductivity of rock is affected by many factors, among which petrological characteristics are the most important. Porosity, fluid properties and acoustic properties are closely related to the thermal conductivity of rock, and are also affected by temperature, pressure and anisotropy. According to the present research situation of petrophysical properties of rocks, it is considered that there are the following development trends in the field of oil and gas: firstly, shale gas is a hot spot in oil and gas exploration at present, and its formation mechanism and accumulation process are controlled by the thermal physical properties of shale. However, the relationship between the thermal conductivity of shale and organic pores, organic carbon content, gas content and fracturing characteristics is not known, so it is a research direction to explore the thermo-physical properties of gas-bearing shale. Secondly, the research of big data is the trend of the times. Although the database of thermal parameters of rock is expanding continuously, the best method is to complete the in-situ continuous measurement of thermal conductivity in wells in order to obtain an accurate database of in-situ thermal conductivity of rock. Therefore, the development of logging methods and tools based on the thermal physical properties of rock is another trend.
【作者單位】： 西南石油大學(xué)地球科學(xué)與技術(shù)學(xué)院;
【基金】：西南石油大學(xué)大學(xué)生課外開(kāi)放實(shí)驗(yàn)項(xiàng)目(編號(hào):KSZ16040)資助~~
【分類號(hào)】：P584

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