测井技术2025，Vol.49Issue(2)：164-170,7.DOI:10.16489/j.issn.1004-1338.2025.02.003
基于迷宫式刻槽结构的单极随钻声波测井隔声体研究
Monopole Acoustic Logging While Drilling Acoustic Insulator Based on Labyrinthine Grooved Structure
摘要
Abstract
In acoustic logging while drilling(ALWD),the presence of a thick-walled drill collar inspires significant amplitude drill collar waves,which will interfere with the measurement and acquisition of formation information.To address this issue,a novel acoustic isolator based on a labyrinthine grooved structure is proposed to effectively attenuate drill collar waves propagating along the drill string.The sound insulation performance of the proposed insulator is analyzed through both frequency-domain and time-domain responses.After parameter optimization,the labyrinthine grooved structure insulator consists of 10 grooved sections,each containing 20 random grooves along the circumferential direction.The results show that,within the sound source's central frequency range of 10～16 kHz,the structure presented in this paper has a good suppression effect on drill collar waves.Moreover,by using the proposed structure,formation P-wave and S-wave velocities can be derived by analyzing the array-received waveform data.Calculations demonstrate that the proposed structure meets the mechanical performance requirements under complex wellbore conditions.The findings of this study are expected to provide new insights for the design of sound insulators in ALWD and further enhance the accuracy of formation property acquisition in monopole ALWD.关键词
随钻声波测井/隔声体/钻铤波/迷宫结构Key words
acoustic logging while drilling/isolator/collar wave/labyrinthine grooved structure引用本文复制引用
豆一帆,张超,关威..基于迷宫式刻槽结构的单极随钻声波测井隔声体研究[J].测井技术,2025,49(2):164-170,7.基金项目
国家自然科学基金项目"基于声波测井全波形反演的非常规储层近远场参数评价"(42474141) （42474141）
国家自然科学基金项目"利用声波测井多分波特征的页岩渗透率反演研究"(42404125) （42404125）
国家重点研发计划项目"高温高压声波换能器"(2023YFF0720700) （2023YFF0720700）
黑龙江省"春雁"创新团队项目"非常规油气资源富集规律和地球物理预测创新团队"(2022CYQN0204) （2022CYQN0204）
哈尔滨工业大学青年科学家工作室项目(IUGD0200801224) （IUGD0200801224）
