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| 吐哈盆地巴喀气田八道湾组致密砂岩气藏气水分布特征 | |
| 引用本文： | 王国亭,何东博,程立华,蒋平,李易隆,张喜,王丽娟.吐哈盆地巴喀气田八道湾组致密砂岩气藏气水分布特征[J].现代地质,2012,26(2):370-376. |
| 作者姓名： | 王国亭 何东博 程立华 蒋平 李易隆 张喜 王丽娟 |
| 作者单位： | 1. 中国石油勘探开发研究院,北京,100083 2. 中国石油勘探开发研究院,北京100083;北京大学地球与空间科学学院,北京100871 3. 中国石油吐哈油田分公司,新疆鄯善,838200 |
| 基金项目： | 中国石油天然气股份有限公司专项项目 |
| 摘 要： | 基于核磁共振、压汞测试、物性分析、相渗曲线及生产动态等多种资料,对吐哈盆地巴喀气田八道湾组致密砂岩储层的物性特征、孔喉分布、束缚水含量、气柱高度、"甜点"发育的主控因素进行了分析,总结了研究区气水分布特征和气水分布模式。研究结果表明:八道湾组发育典型的致密砂岩储层,其孔隙度总体小于7%,渗透率小于0.2×10-3μm2;喉道半径较小,主喉道半径的分布范围为0.01～1μm;束缚水饱和度较高,且同孔隙度呈负相关关系。研究区气水过渡带的范围约为640 m,研究区储层总体处于气水过渡带之内;处于过渡带不同构造位置处不同物性的储层具有不同的含气特征和气水生产特征,位于气水过渡带较高部位的物性较好的区域和裂缝发育区是"甜点"的主要发育区。 |
| 关 键 词： | 吐哈盆地 巴喀气田 致密砂岩 气水分布 气水过渡带 |
Gas-water Distribution Characteristics of Tight Sand Reservoirs in Badaowan Formation in Baka Gas Field, Tuha Basin |
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| WANG Guo-ting , HE Dong-bo , CHENG Li-hua , JIANG Ping , LI Yi-long , ZHANG Xi , WANG Li-juan.Gas-water Distribution Characteristics of Tight Sand Reservoirs in Badaowan Formation in Baka Gas Field, Tuha Basin[J].Geoscience——Journal of Graduate School,China University of Geosciences,2012,26(2):370-376. | |
| Authors: | WANG Guo-ting HE Dong-bo CHENG Li-hua JIANG Ping LI Yi-long ZHANG Xi WANG Li-juan |
| Institution: | 1.Institute of Petroleum Exploration and Development,PetroChina,Beijng 100083,China;2.School of Earth and Space Sciences, Peking University,Beijng 100871,China;3.Tuha Oilfield Company,PetroChina,Shanshan,Xinjiang 838200,China) |
| Abstract: | Based on the nuclear magnetic resonance,mercury penetration measurements,reservoir properties,relative permeability curves and production performance data,the controlling factors of porosity and permeability,pore throat size distribution,bound water saturation,gas height above free water and sweet spots of tight sand reservoirs in Badaowan Formation in Baka gas field were analyzed,and the gas-water distribution characteristics and models were summarized.The typical tight sand reservoirs developed in Badaowan Formation have the following features: the porosity is mostly less than 7% and permeability is less than 0.2×10-3μm2;the pore-throat radius is mainly between 0.01 and 1 μm;the bound water saturation is relatively high,increasing obviously with porosity decreasing.The height of gas-water transition zone in the study area is approximately 640 m,and favorable reservoirs mostly locate in the gas-water transition zone.Reservoirs which have different porosity values and locate in different structural heights have different gas-water production performances.The high-porosity reservoirs which locate in high position of the gas-water transition zone are sweet spots for gas production. |
| Keywords: | Tuha basin Baka gas field tight sands gas-water distribution gas-water transition zone |
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