【摘要】：準(zhǔn)確認(rèn)識馬家溝組白云巖成因可解決鄂爾多斯盆地白云巖型儲集層油氣勘探面臨的困擾。包裹體研究表明,馬家溝組白云巖包裹體稀少,大小多為2~7μm,馬五5亞段白云石及桌子山組白云石"霧心"內(nèi)包裹體以單液相為主,形成溫度低于50℃,桌子山組白云石"亮邊"內(nèi)包裹體多為氣-液兩相,均一溫度為71~89℃,均值為88℃,鹽下白云巖內(nèi)包裹體主要為氣-液兩相,均一溫度為76~125℃,均值為93℃。這表明馬五5亞段白云巖可能為滲透回流白云巖,桌子山組白云巖為滲透回流疊加埋藏白云巖,鹽下白云巖為埋藏白云巖。
[Abstract]:Accurately understanding the origin of dolomite in Majiagou formation can solve the problem of petroleum exploration in dolomite reservoir in Ordos Basin. The study of inclusions shows that the inclusions of dolomite in Majiagou formation are rare, mostly of 2 ~ 7 渭 m in size. The inclusions of dolomite and dolomite "fog core" of submember Ma Wu 5 and Guoshan formation are mainly composed of single liquid phase and the formation temperature is lower than 50 鈩，

本文編號：2191122