南华北地区上古生界油气勘探方向及目标区研究

发布时间：2018-05-17 03:27

本文选题：上古生界 + 致密砂岩油气　；参考：《特种油气藏》2017年06期

【摘要】：南华北地区晚古生代与鄂尔多斯盆地为同一大型克拉通坳陷,发育有一套海陆交互相含煤地层,但南华北地区上古生界油气勘探至今尚未取得突破。通过开展南华北地区与鄂尔多斯盆地上古生界的石油地质条件类比研究,明确了制约南华北地区上古生界油气勘探突破的关键因素是后期的构造改造,在构造稳定区开展致密砂岩油气藏勘探是下步方向。研究结果表明:洛伊地区上古生界残存完整、厚度大,热演化程度适中,上覆直接盖层三叠系,且处于构造相对稳定区,有利于油气保存;区内已钻探井也于上古生界见良好气显示,综合评价为下步勘探的首选目标区,从而为南华北地区上古生界油气勘探突破指明了方向和目标。
[Abstract]:The late Paleozoic and Ordos Basin in the north of South China are the same large cratonic depression, with a set of sea and land interrelated coal bearing strata, but the upper Paleozoic oil and gas exploration in the South and North China has not made a breakthrough. Through the study of the petroleum geological conditions of the upper Paleozoic in the South Huabei area and the Ordos Basin, the restriction has been made clear. The key factor for the oil and gas exploration breakthrough in the upper Paleozoic oil and gas exploration in the north of South China is the later tectonic transformation, and the exploration of the tight sandstone reservoir in the tectonic stable area is the next direction. The results show that the upper Paleozoic in the loy area is intact, thick, and the thermal evolution is moderate, overlying the Triassic in the direct cover layer and in a relatively stable zone of structure, It is beneficial to the preservation of oil and gas; the exploration well in the area is also shown in the upper Paleozoic, and the comprehensive evaluation is the preferred target area for the lower step exploration, thus pointing out the direction and target for the oil and gas exploration breakthroughs of the upper Paleozoic in the South and North China.
【作者单位】：成都理工大学;中国石化河南油田分公司;
【基金】：中国石化科研项目“南华北地区中古生界有利区带选择与突破目标”(G5800-14-ZS-YTB011) 中国石化河南油田分公司科研项目“南华北地区中古生界选区评价与目标优选研究”(2014-008)
【分类号】：P618.13

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