[1]张艺山,赵军,王英伟,等.基于BF-PSO算法的水平井电阻率各向异性数值模拟与校正[J].测井技术,2019,43(05):488-492.[doi:10.16489/j.issn.1004-1338.2019.05.009]
 ZHANG Yishan,ZHAO Jun,WANG Yingwei,et al.Numerical Simulation and Correction of Resistivity Anisotropy in Horizontal Wells Based on BF-PSO Algorithm[J].WELL LOGGING TECHNOLOGY,2019,43(05):488-492.[doi:10.16489/j.issn.1004-1338.2019.05.009]
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基于BF-PSO算法的水平井电阻率各向异性数值模拟与校正()
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《测井技术》[ISSN:1004-1338/CN:61-1223/TE]

卷:
第43卷
期数:
2019年05期
页码:
488-492
栏目:
解释评价
出版日期:
2019-10-20

文章信息/Info

Title:
Numerical Simulation and Correction of Resistivity Anisotropy in Horizontal Wells Based on BF-PSO Algorithm
文章编号:
1004-1338(2019)05-0488-05
作者:
张艺山1赵军2王英伟3李维2覃建华3张明玉4
(1.北京大学地球与空间科学学院,北京100871;2.西南石油大学地球科学与技术学院,四川成都610500; 3.中国石油新疆油田分公司研究院,新疆克拉玛依834000;4.中国石油新疆油田分公司,新疆克拉玛依 834000)
Author(s):
ZHANG Yishan1ZHAO Jun2WANG Yingwei3LI Wei2QING Jianhua3ZHANG Mingyu4
(1. School of Earth and Space Sciences, Peking University, Beijing 100871, China; 2. School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan 610500, China; 3. Research Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China; 4. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China)
关键词:
电阻率测井地层各向异性水平井有限元模拟反演算法
Keywords:
resistivity logging formation anisotropy horizontal well finite element simulation inversion algorithm
分类号:
P631.84
DOI:
10.16489/j.issn.1004-1338.2019.05.009
摘要:
水平井井眼轨迹与地层的相对位置发生变化,使得常规电测井仪器响应机理发生改变,电阻率测井表现出各向异性特征。为准确求取储层含油饱和度,必须对水平井的井斜角进行校正。运用有限元方法模拟在地层中双侧向测井仪器的电场分布,结合监督电极电势得到不同地层倾角条件下双侧向测井电阻率;利用数值模拟结果建立电阻率正演模型;结合基于粒子群算法的细菌觅食全局优化算法反演地层真实的电阻率。结果表明,电阻率受地层倾角的影响随着井斜角的增大而逐渐增大。利用拟合出的正反演模型,配合基于粒子群算法的细菌觅食全局优化算法,对准葛尔盆地玛湖地区水平井A和B测得的视电阻率进行了井斜角校正,得到了真实反映地层特性的电阻率值,并结合试油资料验证校正后的电阻率更能反映真实的含油饱和度。
Abstract:
Resistivity is an important parameter for identifying the properties of reservoir fluids. The trajectory of a horizontal well changing relative to formation causes the response mechanism of a conventional electrical logging tool to change, and the resistivity logging data are anisotropic. To get accurate oil saturation, it is necessary to correct the inclination of the trajectory. First the finite-element method is used to simulate the electric field distribution of the emitter electrodes of a downhole dual-lateral logging tool, and the dual-lateral logging apparent resistivity at different formation dips is obtained by considering the potential of the monitoring electrode; then a forward resistivity model is established; and finally, true formation resistivity is inverted by the bacterial foraging algorithm based on particle swarm optimization. The results show that resistivity is influenced by formation dip and increases with the deviation of trajectory. Taking horizontal wells A and B in the Mahu block in the Junggar Basin as cases, using fitted forward and inversion models and the bacterial foraging algorithm, trajectory deviation was corrected to the apparent resistivity recorded in the two wells. After further corrected by production test data, the final formation resistivity is more effective to reflect underground oil saturation

参考文献/References:


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备注/Memo

备注/Memo:
基金项目:国家“十三五”重大专项子课题“准噶尔盆地碎屑岩层系油气富集规律与勘探评价”(2016ZX05002-002-009)资助 第一作者:张艺山,男,1992年生,博士研究生,从事地球科学类数学建模工作。E-mail:1801110568@pku.edu.cn(修改回稿日期: 2019-09-14本文编辑余迎)
更新日期/Last Update: 2019-10-20