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- 2015
随钻声波井下时差实时提取算法研究与应用
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Abstract:
随钻声波测井仪能够伴随钻井作业,在泥浆侵入地层之前或侵入很浅时采集声波测井数据。然而目前在用的泥浆脉冲传输方式传输速率极低,井下仪器和地面系统之间只能进行简单的通信交互,大量声波测井数据无法实时上传到地面系统,从而导致地面人员不能实时监测地质状况。针对这一问题,该文将时差提取算法集成到井下电路系统中,在井下实现从声波测井数据中实时提取反映地层状况的时差信息,并将此时差处理结果实时上传到地面系统,地面作业人员则能够通过时差信息来实时了解地层状况,从而指导钻井作业。实验结果表明,该算法能够在井下电路中高效运行,且计算速度快、实时处理性能优异、时差提取精度高,完全满足随钻声波测井仪实际工作的需求。
| [1] | 袁文涛. 随钻声波测井仪井下信号采集与处理系统设计[D]. 成都: 电子科技大学, 2013. |
| [2] | YUAN Wen-tao. Design of downhole signal acquisition and processing system for acoustic logging-while-drilling tool[D]. Chengdu: University of Electronic Science and Technology of China, 2013. |
| [3] | RAO Zhi. Research and implementation of key technologies of cross-dipole acoustic array logging downhole circuit system[D]. Chengdu: University of Electronic Science and Technology of China, 2011. |
| [4] | LI Qi, XIA Hong-quan, FANG Guo-qing, et al. P-wave and S-wave time difference extraction of array acoustic logging[J]. World Well Logging Technology, 2010(2): 22-24. |
| [5] | SONG Yan-jie, HE Ying-wei, SHI Ying, et al. Estimating slowness of array sonic data with slowness time coherence and genetic algorithm[J]. Well Logging Technology, 2006, 30(2): 122-125. |
| [6] | ZHANG Wei. Study on array acoustic logging tool and its data processing method[D]. Chengdu: University of Electronic Science and Technology of China, 2010. |
| [7] | 刘玉梅, 杨桂茹, 武国华. 利用声波时差测井信息定性判断断层封闭性[J]. 大庆石油学院学报, 2009, 33(2): 6-10. |
| [8] | WANG Ya-dong. How to use well logging interval transit time curve to compute formation pressure[J]. Mud Logging Engineering, 2005, 16(4): 59-61. |
| [9] | LIU Xiu-shan, SU Yi-nao. Study on transmission velocity of mud pulse signal[J]. Drilling&Production Techniques, 2000, 28(5): 24-26. |
| [10] | 申本科, 赵红兵, 宋相辉, 等. 电缆测井、随钻测井和过套管测井研究[J]. 国外测井技术, 2011(1): 10-14. |
| [11] | SHEN Ben-ke, ZHAO Hong-bing, SONG Xiang-hui, et al. Study of wireline logging, logging while drilling and through-casing logging[J]. World Well Logging Technology, 2011(1): 10-14. |
| [12] | 李奇, 夏宏泉, 房国庆, 等. 阵列声波的纵横波时差提取方法研究[J]. 国外测井技术, 2010(2): 22-24. |
| [13] | 黄文新. 声波信息时差相关处理[J]. 测井技术, 1987, 11(6): 48-51. |
| [14] | 张伟. 阵列声波测井仪研制及测井数据处理方法研究[D].成都: 电子科技大学, 2010. |
| [15] | LIU Yu-mei, YANG Gui-ru, WU Guo-hua. Qualitative judgment of fault sealing by using acoustic logging information[J]. Journal of Daqing Petroleum Institute, 2009, 33(2): 6-10. |
| [16] | 王亚东. 如何用测井声波时差曲线计算地层压力[J]. 录井工程, 2005, 16(4): 59-61. |
| [17] | 牛林林. 随钻测井的数据传输[J]. 国外测井技术, 2009(6): 7-9. |
| [18] | 刘修善, 苏义脑. 泥浆脉冲信号的传输速度研究[J]. 石油钻探技术, 2000, 28(5): 24-26. |
| [19] | 刘树坤, 汪勤学, 梁占良, 等. 国内外随钻测量技术简介及发展前景展望[J]. 录井工程, 2008, 19(4): 32-37, 41. |
| [20] | LIU Shu-kun, WANG Qin-xue, LIANG Zhan-liang, et al. Introduction and development prospect of MWD technique at home and abroad[J]. Mud Logging Engineering, 2008, 19(4): 32-37, 41. |
| [21] | NIU Lin-lin. Logging-while-drilling data transmission[J]. World Well Logging Technology, 2009(6): 7-9. |
| [22] | 宋延杰, 何英伟, 石颖, 等. 慢度-时间相关法与遗传算法结合提取阵列声波时差[J]. 测井技术, 2006, 30(2): 122-125. |
| [23] | HUNG Wen-xin. The semblance processing method of the sonic slowness[J]. Well Logging Technology, 1987, 11(6): 48-51. |
| [24] | KIMBALL C V, MARZETTA T L. Semblance processing of bolehole acoustic array data[J]. Geophysics, 1984, 49(3): 274-281. |
| [25] | 饶知. 交叉偶极阵列声波测井井下电路关键技术研究与实现[D]. 成都: 电子科技大学, 2011. |
