Abstract:The electromagnetic wave measurement while drilling tool in the directional well mining identifies the drilled formation and the formation to be drilled, and ensures the bit in a right tracjectory, so the oil and gas recovery will be greatly improved.We conduct a study on the electromagnetic wave measurement while drilling tool in inclined wells.The following understandings are obtained:①The distance from the surrounding rock layer to the target can be judged by the positive or negative of the directional response signal; ②The influence of formation inclination and formation anisotropy on the directional response can be reduced or eliminated with symmetric coil arrangement for measurement.The directional measurements of two pairs of single emissing and single receiving coil system should be superimposed together.When the tool is located near the formation boundary, the directional response signal is only sensitive to the inclination, and when the tool is far from the formation boundary, the directional response signal is less affected by anisotropy and inclination, and the directional response curve is simple; ③A numerical simulation for the directional measurement response of formation dip angle less than 20° is carried out.If the target thickness is less 6m, the geo-steering signals are very sensitive to well dip angle.The proposed method has a high real-time measurement accuracy and compensates the shortage of the current borehole imaging.
黄世军, 康博韬, 程林松, 等.海上普通稠油油藏多层合采层间干扰定量表征与定向井产能预测[J].石油勘探与开发, 2015, 42(4):488-495.HUANG Shijun, KANG Botao, CHENG Linsong, et al.Quantitative characterization of interlayer interference and productivity prediction of directional wells in the multilayer commingled production of ordinary offshore heavy oil reservoirs[J].Petroleum Exploration and Development, 2015, 42(4):488-495.
[2]
屈亚光, 安桂荣, 周文胜, 等.层状砂岩油藏水平井与定井适应性探讨[J].断块油气田, 2013, 20(2):216-220.QU Yaguang, AN Guirong, ZHOU Wensheng, et al.Discussion on adaptability of horizontal well and directional well in stratified sandstone reservoir[J].Fault-Block Oil & Gas Field, 2013, 20(2):216-220.
[3]
赵兵.定向井井眼轨迹不确定性分析[J].录井工程, 2012, 23(3):45-48.ZHAO Bing.Uncertainty analysis of hole trajectory in directional well[J].Mud Logging Engineering, 2012, 23(3):45-48.
[4]
Wang T, Roland C, Eric H, et al.Real-time formation imaging, dip, and azimuth while drilling from compensated deep directional resistivity[C].SPWLA 48th Annual Logging Symposium, 2007.
[5]
Zhou J Q.On the depth of investigation-achieving deeper investigation with shorter source-receiver spacing[J].Petrophysics, 2009, 50(5):427-429.
[6]
Ai-Haiari A.Proactive geosteering in thin reservoir bounded by anhydrite in Saudi Aribia[C].International Petroleum Conference, 2009.
[7]
Khadija A.Shallow azimuthal measurements a step towards 3D petrophysical evaluation in thin reservoirs[C].SPE Abu-Duabi International Petroleum Exhibition and Conference, 2010.
[8]
Michael B, Roland C.Real-time proactive optimal well placement using geo-signal and deep images[C].Offshore Technology Conference, 2010.
[9]
霍进, 宋渝新, 张一军, 等.PeriScope随钻测井技术在克拉玛依油田水平井开发中的应用[J].新疆石油地质, 2008, 29(2):238-239.HUO Jin, SONG Yuxin, ZHANG Yijun, et al.Application of LWD PeriScope to horizontal well development in Karamay oil field[J].Xinjiang Petroleum Geology, 2008, 29(2):238-239.
[10]
Nedhal Al-Musharfi, Radhey B, Mahbub A, et al.Real-time reservoir characterization and geosteering using advanced high resolution LWD resistivity imaging[C].SPE Annual Technical Conference and Exhibition, 2010, 19-22.
[11]
Khadija A.Reservoir characterization, fracture map-ping, and well placement using a suite of logging-while drilling images with multiple resolutions in a marginal, middle-east carbonate reservoir[C].SPE Reservoir Characterization and Simulation Conference and Exhibition, 2011, 9-11.
[12]
杨锦舟, 马哲, 林楠.PeriScope15方位定向电阻率测量仪的功能与特点[J].录井工程, 2009, 20(4):53-56.YANG Jinzhou, MA Zhe, LIN Nan.Functions and features of Periscope15 azimuthal orientation resistivity measuring instrument[J].Mud Logging Engineering, 2009, 20(4):53-56.
[13]
魏宝君, 田坤, 张旭, 等.定向电磁波传播随钻测量基本理论及其在地质层界面预测中的应用[J].地球物理学报, 2010, 53(10):2507-2515.WEI Baojun, TIAN Kun, ZHANG Xu, et al.Physics of directional electromagnetic propagation measurements-while-drilling and its application for forecasting formation boundaries[J].Chinese Journal of Geophy-sics, 2010, 53(10):2507-2515.
[14]
Wang T, Sheng F.3-D electromagnetic anisotropy modeling using finite differences[J].Geophysics, 2001, 66(5):1386-1398..
[15]
Newman G A and Alumbaugh D L.Three dimensional induction logging problems, Part 2:A finite difference solution[J].Geophysics, 2002, 67(2):484-491.
[16]
史晓峰.水平井中随钻电阻率测量仪定位和预测地层界面的方法[J].测井技术, 2006, 30(2):119-121.SHI Xiaofeng.Methods for orientation of formation layerings and formation boundary prediction with LWD resistivity logs in HZ wells[J].Well Logging Technology, 2006, 30(2):119-121.
[17]
刘立辉, 李建海, 孙莹频, 等.时域属性法薄互层预测[J].石油地球物理勘探, 2017, 52(6):1261-1268.LIU Lihui, LI Jianhai, SUN Yingpin, et al.Thin inter-bed prediction with time and frequency attributes[J].Oil Geophysical Prospecting, 2017, 52(6):1261-1268.
[18]
欧阳芳, 戴世坤, 张钱江, 等.层状单轴各向异性介质中长导线源电磁响应的快速计算[J].石油地球物理勘探, 2016, 51(5):1012-1020.OUYANG Fang, DAI Shikun, ZHANG Qianjiang, et al.A fast calculation method for electromagnetic fields generated by finite-length wire source in stratified uniaxial anisotropic medium[J].Oil Geophysical Prospecting, 2016, 51(5):1012-1020.
[19]
曹辉, 王绪本, 何展翔, 等.水平层状介质条件下的井地电磁场响应计算[J].石油地球物理勘探, 2012, 47(2):338-343.CAO Hui, WANG Xuben, HE Zhangxiang, et al.Calculation of borehole-to-surface electromagnetic responses on horizontal stratified earth medium[J].Oil Geophysical Prospecting, 2012, 47(2):338-343.
[20]
杨振威, 冯磊, 赵宁, 等.多重网格法二维Helmholtz方程解算及其在电磁法正演模拟中的应用[J].石油地球物理勘探, 2017, 52(1):167-172.YANG Zhengwei, FENG Lei, ZHAO Ning, et al.Calculating 2D Helmholtz equation based on multigrid method and application in magnetotelluric modeling[J].Oil Geophysical Prospecting, 2017, 52(1):167-172.
[21]
于新娟, 刘迪仁, 蔡明, 等.围岩对井间电磁测井的影响.石油地球物理勘探.2011, 46(4):654-656.YU Xinjuan, LIU Diren, CAI Ming, et al.Influence of neighboring rock on cased crosswell electromagnetic logging[J].Oil Geophysical Prospecting, 2011, 46(4):654-656.