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Analysis of anti-vibration performance of small logging while drilling instrument based on finite element analysis 期刊论文
APPLIED NANOSCIENCE, 2021
作者: Wei, Zhuo; Jie, Yu; Gang, Li

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Finite element analysis Logging while drilling instrument Anti-vibration performance Simulation

High precision magnetic azimuth correction of horizontal well by multi-station analysis 期刊论文
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2019, 卷号: 62, 期号: 7, 页码: 2759-2766
作者: Liu JianGuang; Di QingYun; Zhang WenXiu

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MWD (Measurement While Drilling) technology Magnetic azimuth correction Multi-station analysis High precision

Application of Logging While Drilling Tool in Formation Boundary Detection and Geo-steering 期刊论文
SENSORS, 2019, 卷号: 19, 期号: 12
作者: Zhu, Gaoyang; Gao, Muzhi; Kong, Fanmin; Li, Kang

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Logging while drilling (LWD) geo-steering continued fraction boundary detection inversion modeling Levenberg-Marquardt algorithm

Numerical simulation of acoustic fields in formation generated by linear phased array acoustic transmitters during logging while drilling 期刊论文
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2019, 卷号: 182
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Logging while drilling Linear phased array Acoustic reflection logging P wave

Investigation on acoustic reflection logging of LWD using a flexible finite difference technique 期刊论文
EXPLORATION GEOPHYSICS, 2019, 卷号: 50, 页码: 172-180
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Acoustic reflection logging simulation logging while drilling real axis integration finite difference method spatial order operator

Optimization of models for a rapid identification of lithology while drilling-A win-win strategy based on machine learning 期刊论文
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2019, 卷号: 176, 页码: 321-341
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Machine learning Lithologic identification while drilling Optimization Correlation analysis

基于高分辨质谱的土壤溶解性有机质化学多样性研究 学位论文
北京: 中国科学院生态环境研究中心, 2018
作者: 李晓明

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土壤溶解性有机质，化学多样性，微生物多样性，傅立叶变换离子回旋共振质谱 decreased WIth IncreasIng Iron ComplexIng Index. PAtterns In Molecular PrOfiles IndicAted Dom In Paddy Soils To Become More RecalcItrAnt At Higher Soil C/n rAtio And Higher Soil Ph. furTherMore, PlAnt-derived polyPh.nols And Pyrogenic Dom Were retaIned Favorably By Iron And The ChemodiversIty Of Dom In Paddy Soil Increased WIth IncreasIng Soil C/n rAtios. These Results Provide Novel InFormAtion regardIng Dom Characteristics At a Molecular Level And Will InForm Better Global MAnagement Of Soil Carbon In Paddy Soil EcosysteMs Global. 2) Through The applicAtion Of Ft-icr-Ms, The ChemodiversIty Of Dom In Soil Subjected To Long-term OrgAnic Carbon And InOrgAnic Fertilizer Amendments Was Established. In Parallel, Bcc Was Assessed. Through This Coupled Approach It Was Established.thAt sustaIned OrgAnic Carbon Amendment Resulted In: SignificAntly (p < 0.05) Increased Total Carbon And Total nItrogen Reservoirs In Soil, Dom PrOfiles Of greAter ChemodiversIty, And Emergence Of RecalcItrAnt Dom Moieties (H/c < 1.5). In Contrast, Carbon And nItrogen Reservoirs In Soil Subjected To sustaIned InOrgAnic Fertilizer applicAtion Were Unaltered, While Soil OrgAnic Carbon ChemodiversIty Was Observed To Shift To Less RecalcItrAnt Dom Moieties (H/c rAtio > 1.5 And O/c rAtios < 0.5). furTherMore, sustaIned OrgAnic Carbon Amendment Shaped Bcc To a eutroPh.c stAte While Long-term Chemical fertilizAtion Directed The Bcc Towards An oligotroPh.c stAte. Higher connectivIty And Network complexIty Were Observed In OrgAnic Carbon Amended Soils. Dom-Bcc Network Analysis, IndicAtIng thAt Soil Microbes Had More Interaction WIth Dom Molecules followIng sustaIned OrgAnic mAtter Input. These Results Highlight The Potential For OrgAnic Carbon Amendments To Not Only Build Soil Carbon sTocks And Increase Their Resilience, But To Also Improve The Functional stAte Of Soil Microbial communIties. Key Words: Dom, ChemodiversIty, Microbial diversIty, Ft-icr Ms

Selection criteria and feasibility of the inversion model for azimuthal electromagnetic logging while drilling (LWD) 期刊论文
PETROLEUM EXPLORATION AND DEVELOPMENT, 2018, 卷号: 45, 期号: 5, 页码: 974-982
作者: Wang L; Fan YR; Yuan C; Wu ZG; Deng SQ

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logging-while-driling azimuthal electromagnetic logging electromagnetic logging inversion model inversion algorithm geosteering bed boundary

致密砂岩储层裂缝型"甜点"的随钻识别方法 期刊论文
科学技术与工程, 2018, 卷号: 18, 页码: 88-93
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致密砂岩储层裂缝型" 甜点" 随钻识别 dc指数裂缝发育系数库车坳陷 tight sandstone reservoir fracture type" sweet spot" identification while drilling dc in-dex fracture development coefficient Kuqa Depression

A Reinforcement Learning Based 3D Guided Drilling Method: Beyond Ground Control 会议论文
PROCEEDINGS OF 2018 VII INTERNATIONAL CONFERENCE ON NETWORK, COMMUNICATION AND COMPUTING (ICNCC 2018), 2018-01-01
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self-steering drilling 3D guided drilling logging while drilling data reinforcement learning Deep Q Network

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