一種基于電成像測(cè)井和雙側(cè)向測(cè)井的聯(lián)合反演方法
發(fā)布時(shí)間:2018-07-23 20:53
【摘要】:利用電阻率測(cè)井理論和反演技術(shù),以三參數(shù)(侵入帶半徑、侵入帶電阻率、地層電阻率)反演為重點(diǎn),在常規(guī)雙側(cè)向曲線反演技術(shù)的基礎(chǔ)上,結(jié)合電成像測(cè)井資料,建立了一種基于電成像測(cè)井和雙側(cè)向測(cè)井的聯(lián)合反演方法,即利用電成像測(cè)井探測(cè)深度淺且分辨率高的特性為雙側(cè)向反演提供精細(xì)的地層界面、產(chǎn)狀和侵入帶電阻率信息;運(yùn)用雙側(cè)向測(cè)井資料進(jìn)行迭代反演進(jìn)一步得到侵入帶半徑和地層電阻率參數(shù)。實(shí)際測(cè)井?dāng)?shù)據(jù)的處理結(jié)果表明,本文提出的聯(lián)合反演方法提高了雙側(cè)向反演結(jié)果及測(cè)井解釋的精度,進(jìn)一步提高了常規(guī)測(cè)井資料對(duì)油氣儲(chǔ)層的識(shí)別能力。
[Abstract]:Based on the theory of resistivity logging and inversion technique, the inversion of three parameters (radius of invasion zone, resistivity of intrusive zone, resistivity of formation) is emphasized. Based on the conventional double lateral curve inversion technique, electrical imaging logging data are combined. A combined inversion method based on electric imaging logging and dual lateral logging is established, which uses the characteristics of low depth and high resolution of electric imaging logging to provide fine formation interface, occurrence and intrusion zone resistivity information for dual lateral inversion. The radius of the invasion zone and the resistivity parameters of the formation are further obtained by iterative inversion using the dual lateral logging data. The processing results of actual logging data show that the combined inversion method proposed in this paper improves the accuracy of dual lateral inversion results and log interpretation, and further improves the recognition ability of conventional logging data to oil and gas reservoirs.
【作者單位】: 中海油田服務(wù)股份有限公司油田技術(shù)事業(yè)部;
【基金】:“十二五”國(guó)家科技重大專項(xiàng)“大型油氣田及煤層氣開(kāi)發(fā)”課題“三維聲波、油基泥漿電成像、二維核磁成像測(cè)井技術(shù)與裝備(編號(hào):2011ZX05020-005)”部分研究成果
【分類號(hào)】:P631.81
[Abstract]:Based on the theory of resistivity logging and inversion technique, the inversion of three parameters (radius of invasion zone, resistivity of intrusive zone, resistivity of formation) is emphasized. Based on the conventional double lateral curve inversion technique, electrical imaging logging data are combined. A combined inversion method based on electric imaging logging and dual lateral logging is established, which uses the characteristics of low depth and high resolution of electric imaging logging to provide fine formation interface, occurrence and intrusion zone resistivity information for dual lateral inversion. The radius of the invasion zone and the resistivity parameters of the formation are further obtained by iterative inversion using the dual lateral logging data. The processing results of actual logging data show that the combined inversion method proposed in this paper improves the accuracy of dual lateral inversion results and log interpretation, and further improves the recognition ability of conventional logging data to oil and gas reservoirs.
【作者單位】: 中海油田服務(wù)股份有限公司油田技術(shù)事業(yè)部;
【基金】:“十二五”國(guó)家科技重大專項(xiàng)“大型油氣田及煤層氣開(kāi)發(fā)”課題“三維聲波、油基泥漿電成像、二維核磁成像測(cè)井技術(shù)與裝備(編號(hào):2011ZX05020-005)”部分研究成果
【分類號(hào)】:P631.81
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