IMECH-IR  > 流固耦合系统力学重点实验室
Selection criteria and feasibility of the inversion model for azimuthal electromagnetic logging while drilling (LWD)
Wang L1,2; Fan YR; Yuan C3; Wu ZG; Deng SQ; Zhao WN(赵伟娜)
Source PublicationPETROLEUM EXPLORATION AND DEVELOPMENT
2018-10-01
Volume45Issue:5Pages:974-982
ISSN1000-0747
AbstractAzimuthal electromagnetic logging while drilling (LWD), which is capable of providing accurate position information approaching bed boundary, has been widely applied in real-time geosteering. For the inversion speed and precision of azimuthal electromagnetic LWD data, the key lies in the selection of proper inversion model and corresponding optimization algorithm. In this study, we first simplified the complex three-dimensional (3D) inversion of data into a series of one-dimensional (1D) inversion problems by using the dimensionality reduction scheme. Then, the feasibility and inversion performance of various 1D inversion models and different optimization methods were investigated, and the best combination between the inversion model and inversion algorithm was also obtained. Numerical simulation results show that the selection of 1D inversion model is dominated by the thickness of targeted beds, whereas the determination of inversion algorithm relies on the total layers amount of the inversion model. For the formation with thickness larger than 4.0 m, the single boundary inversion model and gradient optimization method are recommended. When the bed thickness is between 1.0 m and 4.0 m, the two-boundary inversion model instead of the single-boundary one is needed to estimate upper and lower boundaries around the borehole. For the inversion of azimuthal electromagnetic LWD data of thin layers, the multiple- boundary inversion model and the Bayesian algorithm should be employed.
Keywordlogging-while-driling azimuthal electromagnetic logging electromagnetic logging inversion model inversion algorithm geosteering bed boundary
DOI10.1016/S1876-3804(18)30101-0
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000451145900018
WOS Research AreaEnergy & Fuels ; Engineering, Petroleum ; Geosciences, Multidisciplinary
WOS SubjectEnergy & Fuels ; Engineering ; Geology
Funding OrganizationNational Natural Science Foundation of China [41474100, 41574118, 41674131] ; Basic Research Funds Reserved to State-run Universities [17CX06041A]
Classification二类/Q1
Ranking5+
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78149
Collection流固耦合系统力学重点实验室
Affiliation1.China Univ Petr, Sch Geosci, Qingdao 266580, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China
3.China Univ Petr, CNPC Key Lab Well Logging, Qingdao 266580, Peoples R China
4.PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China
5.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang L,Fan YR,Yuan C,et al. Selection criteria and feasibility of the inversion model for azimuthal electromagnetic logging while drilling (LWD)[J]. PETROLEUM EXPLORATION AND DEVELOPMENT,2018,45(5):974-982.
APA Wang L,Fan YR,Yuan C,Wu ZG,Deng SQ,&赵伟娜.(2018).Selection criteria and feasibility of the inversion model for azimuthal electromagnetic logging while drilling (LWD).PETROLEUM EXPLORATION AND DEVELOPMENT,45(5),974-982.
MLA Wang L,et al."Selection criteria and feasibility of the inversion model for azimuthal electromagnetic logging while drilling (LWD)".PETROLEUM EXPLORATION AND DEVELOPMENT 45.5(2018):974-982.
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