| 南海神狐海域天然气水合物地球物理测井评价 |
| |
| 引用本文： | 陆敬安,杨胜雄,吴能友,张光学,张明,梁金强.南海神狐海域天然气水合物地球物理测井评价[J].现代地质,2008,22(3):447-451. |
| |
| 作者姓名： | 陆敬安 杨胜雄 吴能友 张光学 张明 梁金强 |
| |
| 作者单位： | 广州海洋地质调查局,广东广州,510760 |
| |
| 摘 要： | 我国南海北部神狐海域的天然气水合物钻探过程中采用电缆测井来识别水合物储层,使用了自然伽马、电阻率、密度、声波全波列、井温—井方位、井径及中子等7种测井仪器,测量的参数主要包括地层的自然放射性、深(浅)探测电阻率、密度、纵波速度、温度、井径、长(短)源距中子计数率及井眼方位,这些参数对于确定天然气水合物的赋存位置起到非常重要的作用。详细介绍了神狐海域天然气水合物测井的工作方法和基本步骤,参照国外相关分析,针对其中某站位钻孔ZK1的地层孔隙度及天然气水合物饱和度进行初步评价。结果表明密度测井和电阻率测井两种方法求出的地层孔隙度的一致性较好,而计算的天然气水合物饱和度值则高于孔隙水淡化分析得到的值,因此尚需结合研究区岩心分析数据来提高解释精度。研究结果对未来我国的天然气水合物测井评价具有指导意义。
|
| 关 键 词： | 天然气水合物 测井 参数评价 南海神狐海域 |
Well Logging Evaluation of Gas Hydrates in Shenhu Area, South China Sea |
| |
| LU Jing-an,YANG Sheng-xiong,WU Neng-you,ZHANG Guang-xue,ZHANG Ming,LIANG Jin-qiang.Well Logging Evaluation of Gas Hydrates in Shenhu Area, South China Sea[J].Geoscience——Journal of Graduate School,China University of Geosciences,2008,22(3):447-451. |
| |
| Authors: | LU Jing-an YANG Sheng-xiong WU Neng-you ZHANG Guang-xue ZHANG Ming LIANG Jin-qiang |
| |
| Abstract: | The wireline logging was applied for recognizing the gas hydrate bearing zone in the drilling of Shenhu area,northern part of South China Sea.Altogether seven instruments which were natural gamma,resistivity,density,full wave sonic,temperature,caliper and neutron logging tools were employed.The main output parameters include GR,Rd(Rs),Den,Vp,temperature,Cali,Neutron counter and borehole orientation.These parameters play a very important role in identifying the depth of gas hydrate reservoir.This paper presented the operating approaches and procedures of logging in Shenhu area in detail.The preliminary evaluation and analysis were also made with the logging data from a drillhole ZK1 in a certain site.The results show good consistent between the porosity derived from density and that from resistivity,while the gas hydrate saturation determined from resistivity is higher than that from pore water analysis,the evaluation may be improved by combining with core data analysis.This study gives a good instruction for future formation evaluation of gas hydrates in China. |
| |
| Keywords: | gas hydrate well logging reservoir evaluation Shenhu area South China Sea |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
