發(fā)布時間：2019-05-19 23:25

【摘要】：綜合利用地震、測井和巖心等資料,對鄂爾多斯盆地東南部宜川—黃龍地區(qū)奧陶系碳酸鹽巖儲層進行了分析,認為該區(qū)具巖溶儲層標志特征。巖心分析測試表明:該區(qū)風化殼儲層巖石類型為含膏白云巖及次生灰?guī)r;儲集空間為白云巖溶蝕孔洞、次生灰?guī)r相對孤立溶孔和裂縫;儲層整體較為致密,孔隙度為0.30%~11.54%,平均值為3.90%,滲透率為(0.002~15.450)×10~(-3)μm~2,平均值為0.710×10~(-3)μm~2。儲層形成受順層巖溶作用影響,綜合古地貌、沉積相、裂縫等條件認為,宜川古潛臺西側(cè)區(qū)域為古地貌較高部位,順層巖溶儲層較為發(fā)育,是后期勘探開發(fā)的有利區(qū)。
[Abstract]:Based on the seismic, logging and core data, the Ordovician carbonate reservoirs in Yichuan-Huanglong area of southeastern Ordos Basin are analyzed, and it is considered that this area has the characteristics of Karst reservoir markers. The core analysis and test show that the rock types of weathered crust reservoirs in this area are gypsum dolomite and secondary limestone, and the reservoir space is dolomite dissolution pores and fractures, and the secondary limestone is relatively isolated dissolved pores and fractures. The reservoir is compact as a whole, the porosity is 0.30% 鈮，

本文編號：2481154