塔中M区奥陶系碳酸盐岩凝析气藏综合分类及开发技术对策

发布时间：2018-07-26 10:26

【摘要】：塔中M区奥陶系碳酸盐岩凝析气藏具有多储集空间类型、多流体相态变化及复杂水体类型等特征,且发育多期次油气藏,给研究区开发带来较大困难。通过对研究区奥陶系14个碳酸盐岩凝析气藏的储层、流体、天然能量和水驱共4个方面的特征进行分析和综合评价,划分出3种储集空间类型、3种流体类型、3种天然能量类型和3种水驱类型,综合划分为"洞穴型、裂缝-孔洞型、孔洞型"+"带油环、无油环中—高含凝析油、无油环低(微)含凝析油"+"天然能量充足、天然能量较充足、天然能量不充足"+"刚性水驱、弹性强水驱、弹性中水驱"共12种组合类型。针对综合分类结果,提出井位井型优化、天然能量合理利用和注水注气保压等开发技术对策,并取得了较好的开发效果。
[Abstract]:Ordovician carbonate condensate gas reservoirs in M area of central Tarim Basin are characterized by multi-reservoir space type, multi-fluid phase change and complex water body type, and the development of multi-stage oil and gas reservoirs has brought great difficulties to the development of the study area. Through the analysis and comprehensive evaluation of the reservoir, fluid, natural energy and water drive of 14 carbonate condensate gas reservoirs of Ordovician in the study area, Three types of reservoir space, three types of fluid, three types of natural energy and three types of water drive are divided into three types: "cave type, fracture-hole type, pore type" with oil ring, no oil ring, medium to high condensate oil content. There are 12 combination types of low (micro) condensate oil without oil rings, "sufficient natural energy, insufficient natural energy", "rigid water drive, strong elastic water drive, and elastic water drive". In view of the comprehensive classification results, the development countermeasures such as well location optimization, rational utilization of natural energy and injection of gas and pressure are put forward, and good development results are obtained.
【作者单位】：中国石油塔里木油田分公司勘探开发研究院;
【基金】：国家科技重大专项“大型油气田及煤层气开发”(2011ZX05004-004)
【分类号】：P618.13;TE372

【相似文献】