【摘要】：綜合利用地震、測(cè)井和巖心等資料,對(duì)鄂爾多斯盆地東南部宜川—黃龍地區(qū)奧陶系碳酸鹽巖儲(chǔ)層進(jìn)行了分析,認(rèn)為該區(qū)具巖溶儲(chǔ)層標(biāo)志特征。巖心分析測(cè)試表明:該區(qū)風(fēng)化殼儲(chǔ)層巖石類型為含膏白云巖及次生灰?guī)r;儲(chǔ)集空間為白云巖溶蝕孔洞、次生灰?guī)r相對(duì)孤立溶孔和裂縫;儲(chǔ)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(chǔ)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(rèn)為,宜川古潛臺(tái)西側(cè)區(qū)域?yàn)楣诺孛草^高部位,順層巖溶儲(chǔ)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(hào)：2481154