【摘要】：隨著石油、天然氣等傳統(tǒng)能源的日益短缺,天然氣水合物被公認(rèn)為未來(lái)化石燃料的理想替代能源。它的識(shí)別技術(shù)研究及相應(yīng)的軟件開(kāi)發(fā)對(duì)于天然氣水合物的資源評(píng)價(jià)及后續(xù)開(kāi)采等工作有重要的參考意義。然而,現(xiàn)有的商業(yè)軟件無(wú)法對(duì)天然氣水合物進(jìn)行有效可靠的識(shí)別。而單一的依靠地震波的反射特征等方法也存在多解性和局限性。需要在此基礎(chǔ)上研究地震的多屬性聯(lián)合識(shí)別技術(shù)。天然氣氣體在地震體上的響應(yīng)特征并不是單一的,而是一個(gè)宏觀上有聯(lián)系的統(tǒng)一體。從深部到淺部受影響的地震屬性或響應(yīng)特征分別為:品質(zhì)因子(滲透率),相干性,彈性參數(shù)(橫波,縱波,密度),羽狀流。研究出一套可以估算以上這些屬性的軟件系統(tǒng)并將結(jié)果呈現(xiàn)出來(lái),與地震資料進(jìn)行綜合對(duì)比,可以有效地檢測(cè)出實(shí)際地下的氣體存在情況,有利于分析天然氣水合物的空間分布,可為其勘探提供科學(xué)的參考依據(jù)。作為天然氣水合物識(shí)別課題組的一員,我的研究?jī)?nèi)容是將課題組新提出的水合物識(shí)別方法進(jìn)行吸收理解,根據(jù)軟件開(kāi)發(fā)的需要編入軟件系統(tǒng)中,使理論方法可以實(shí)用化,適用于常規(guī)的地震資料反演。在原軟件系統(tǒng)的縱橫波增量比法和AVO反演法的基礎(chǔ)上增加了地震多屬性反演法,即層間品質(zhì)因子,彈性參數(shù),相干性等識(shí)別方法。除此之外,在軟件實(shí)際操作中,有些原軟件模塊不再與研究項(xiàng)目的需求匹配,需要針對(duì)缺陷進(jìn)行改進(jìn)完善,重新構(gòu)建和優(yōu)化軟件的結(jié)構(gòu)和功能,增加其實(shí)用性。對(duì)于地震數(shù)據(jù)的操作也要改進(jìn),實(shí)現(xiàn)二維數(shù)據(jù)向三維數(shù)據(jù)拓展,這是研究項(xiàng)目的需求,也是平面大范圍分析水合物成藏的需求。所以,作者基于Qt平臺(tái),研發(fā)出一套功能豐富、容易操作且能夠跨平臺(tái)運(yùn)行的天然氣水合物地震識(shí)別軟件。模塊與模塊之間功能相輔相成,實(shí)現(xiàn)從海底地層,海底面到海水的綜合分析系統(tǒng),專(zhuān)門(mén)用于天然氣水合物的識(shí)別。
[Abstract]:With the increasing shortage of traditional energy such as oil and natural gas, natural gas hydrate is recognized as the ideal alternative energy for fossil fuels in the future. The research of its identification technology and the corresponding software development are of great significance for the evaluation of natural gas hydrate resources and subsequent exploitation. However, existing commercial software is unable to identify gas hydrate effectively and reliably. The single method based on the reflection characteristics of seismic waves also has many solutions and limitations. On this basis, we need to study the multi-attribute joint identification technology of earthquakes. The response characteristics of natural gas on earthquake body are not single, but a macro-connected entity. The seismic attributes or response characteristics affected from deep to shallow are: quality factor (permeability), coherence, elastic parameters (shear wave, longitudinal wave, density), plume flow. A software system that can estimate these attributes and present the results is developed, and compared with seismic data, the existence of actual underground gas can be effectively detected. It is helpful to analyze the spatial distribution of gas hydrate and provide scientific reference for its exploration. As a member of the natural gas hydrate recognition group, my research content is to absorb and understand the new hydrate recognition method proposed by the research group, and program it into the software system according to the need of software development, so that the theoretical method can be applied. It is suitable for conventional seismic data inversion. Based on the P-S wave increment ratio method and AVO inversion method of the original software system, the seismic multi-attribute inversion method is added, that is, the identification method of interlayer quality factor, elastic parameter, coherence and so on. In addition, in the actual operation of the software, some original software modules no longer match the requirements of the research project, so it is necessary to improve and perfect the defects, rebuild and optimize the structure and function of the software, and increase its practicability. The operation of seismic data should also be improved to realize the expansion of 2D data to 3D data, which is the requirement of the research project and the requirement of analyzing hydrate accumulation on a large scale. Therefore, based on QT platform, the author has developed a set of natural gas hydrate seismic identification software, which is rich in function, easy to operate and can run across platforms. The functions of the modules are complementary to each other, and a comprehensive analysis system from the undersea strata, the seabed surface to the sea water is realized, which is specially used for the identification of gas hydrate.
【學(xué)位授予單位】：中國(guó)地質(zhì)大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：P618.13;P631.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 何家雄;盧振權(quán);蘇丕波;張偉;馮俊熙;;南海北部天然氣水合物氣源系統(tǒng)與成藏模式[J];西南石油大學(xué)學(xué)報(bào)(自然科學(xué)版);2016年06期

2 汪杰;汪銳;;基于方差相干體的斷層識(shí)別方法[J];工程地球物理學(xué)報(bào);2016年01期

3 劉暢;朱振宇;張琴;;基于抗大傾角干擾的第三代相干體分析技術(shù)及應(yīng)用[J];地球物理學(xué)進(jìn)展;2015年05期

4 何家雄;蘇丕波;盧振權(quán);張偉;劉志杰;李曉唐;;南海北部瓊東南盆地天然氣水合物氣源及運(yùn)聚成藏模式預(yù)測(cè)[J];天然氣工業(yè);2015年08期

5 張金華;魏偉;魏興華;彭涌;王培;張巧珍;;我國(guó)天然氣水合物勘探及研究進(jìn)展[J];非常規(guī)油氣;2014年01期

6 許翠霞;邊海光;馬朋善;高飛;;氣煙囪的地球物理響應(yīng)特征及油氣勘探[J];地球物理學(xué)進(jìn)展;2014年04期

7 李傳輝;趙倩;徐紅軍;馮凱;劉學(xué)偉;;南海神狐海域地層滲透率與含水合物飽和度關(guān)系研究(英文)[J];Applied Geophysics;2014年02期

8 耿明會(huì);關(guān)永賢;宋海斌;陳江欣;;南海北部天然氣滲漏系統(tǒng)地球物理初探[J];海洋學(xué)研究;2014年02期

9 沙志彬;梁金強(qiáng);鄭濤;陸敬安;王力峰;蘇丕波;;地震屬性在天然氣水合物預(yù)測(cè)中的應(yīng)用[J];海洋地質(zhì)與第四紀(jì)地質(zhì);2013年05期

10 梁勁;王明君;陸敬安;梁金強(qiáng);王宏斌;匡增桂;;南海北部神狐海域含天然氣水合物沉積層的速度特征[J];天然氣工業(yè);2013年07期

相關(guān)博士學(xué)位論文 前1條

1 李傳輝;含水合物地層地震波衰減特性及衰減系數(shù)估計(jì)方法研究[D];中國(guó)地質(zhì)大學(xué)(北京);2015年

相關(guān)碩士學(xué)位論文 前2條

1 欒奕;南海北部神狐海域天然氣水合物的地球物理識(shí)別及成因機(jī)理探討[D];中國(guó)科學(xué)院研究生院(海洋研究所);2015年

2 馮苗苗;基于相干體技術(shù)的斷層識(shí)別研究[D];吉林大學(xué);2014年

，

本文編號(hào)：2129431