辽中凹陷旅大地区古近系核磁共振录井解释评价方法研究

Study on Interpretation and Evaluation Method of Paleogene Nuclear Magnetic Resonance Logging in Lvda Area of Liaozhong Sag

张振波 郭明宇 袁胜斌 杨毅 姬建飞

ZHANG Zhenbo GUO Mingyu YUAN Shengbin YANG Yi JI Jianfei

中法渤海地质服务有限公司，天津　300457 中海石油（中国）有限公司天津分公司，天津　300452

China-France Bohai Geoservices Co. Ltd., Tianjin 300457, China Tianjin Branch, CNOOC (China) Ltd., Tianjin 300457, China

渤海油田的辽中凹陷随着勘探开发力度的加大，所揭示的储层流体分布状态日趋复杂，储层物性及流体识别难度大，从而对现场录井技术及解释评价方法也提出了更高的需求。为了解决现场作业需求，渤海油田引入核磁共振录井技术，通过对辽中凹陷旅大地区的核磁共振录井资料进行统计研究，建立起适用于本地区储层内不同流体类型的核磁共振录井谱图识别法与特征参数图版法，两种方法相互验证，有效地提高了通过综合解释快速、精细化评价储层流体性质的水平，为储层流体解释评价提供了有力技术支撑，为作业生产决策提供了坚实可靠的技术依据。

With the increase of exploration and development in Liaozhong Sag of Bohai Oilfield, the distribution of reservoir fluid revealed is becoming more and more complex, and the identification of reservoir physical properties and fluid is difficult, which puts forward higher requirements for field logging technology and interpretation and evaluation methods. In order to meet the needs of field operation, nuclear magnetic resonance (NMR) logging technology is introduced into Bohai Oilfield. Through the statistical study of nuclear magnetic resonance logging data in Lvda area of Liaozhong Sag, the NMR logging spectrum identification method and characteristic parameter chart method suitable for different fluid types in the reservoir of this area are established. The two methods are mutually verified, which effectively improve the level of rapid and refined evaluation of reservoir fluid properties by comprehensive logging interpretation, provide strong technical support for reservoir fluid interpretation and evaluation, and provide a solid and reliable technical basis for operation and production decision-making.

中海石油（中国）有限公司“七年行动计划”重大科技专项“渤海油田上产4000万吨新领域勘探关键技术”（CNOOC-KJ-135-ZDXM36-TJ-08-TJ）。

https://doi.org/10.3969/j.issn.1008-2336.2023.01.040