82nd EAGE Annual Conference & Exhibition最新文献_第2页

Integral prediction of shale gas sweet spot based on a novel intelligent method 基于智能方法的页岩气甜点积分预测

82nd EAGE Annual Conference & Exhibition Pub Date : 2021-10-18 DOI: 10.3997/2214-4609.202112704

K. Qian, H. Zhang, J. Liu, Z. He, B. Chen, D. Jiang

{"title":"Integral prediction of shale gas sweet spot based on a novel intelligent method","authors":"K. Qian, H. Zhang, J. Liu, Z. He, B. Chen, D. Jiang","doi":"10.3997/2214-4609.202112704","DOIUrl":"https://doi.org/10.3997/2214-4609.202112704","url":null,"abstract":"Summary Shale reservoirs are characterized by its low porosity and permeability, strong heterogeneity and intensive anisotropy. Conventional geophysical methods are far from perfect when it comes to the prediction of shale sweet - spot. Based on algorithms such as fuzzy mathematics, machine learning and multiple regression analysis, an effective workflow is proposed to allow intelligent prediction of sweet - spots location and comprehensive quantitative characterization of shale oil and gas reservoirs. This workflow can effectively combine multi-scale and multi-disciplinary data such as geology, well drilling, well logging and seismic measurements. Following the maximum subordination and attribute optimization principle, we establish a machine-learning model by adopting the support vector machine method to arrive at multi-attribute prediction of reservoir sweet - spot location. Additionally, multiple regression analysis technology is applied to allow the quantification of a number of sweet-spot attributes. The practical application of these methods to areas of interest shows high accuracy and resolution of sweet - spot prediction, indicating that it is a good approach for describing the distribution of high quality regions within shale oil and gas reservoirs. Based on these sweet-spot attributes, quantitative characterization of unconventional reservoirs can provide a reliable evaluation of shale reservoir potential.","PeriodicalId":143998,"journal":{"name":"82nd EAGE Annual Conference & Exhibition","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133059828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Wettability Alteration in Chemical Enhanced Imbibition Using Surfactants with Different IFT Magnitudes for Carbonates 不同IFT量级表面活性剂对碳酸盐化学增强渗吸润湿性的影响

82nd EAGE Annual Conference & Exhibition Pub Date : 1900-01-01 DOI: 10.3997/2214-4609.202112755

Z. Qi, H. Ming, J. Wang, A. Alsofi

{"title":"Effect of Wettability Alteration in Chemical Enhanced Imbibition Using Surfactants with Different IFT Magnitudes for Carbonates","authors":"Z. Qi, H. Ming, J. Wang, A. Alsofi","doi":"10.3997/2214-4609.202112755","DOIUrl":"https://doi.org/10.3997/2214-4609.202112755","url":null,"abstract":"Introduction A large amount of carbonate reservoirs are characterized as preferentially oil-wet or intermediate wet (Okasha et al., 2007). In such reservoirs, the spontaneous imbibition of injection fluid into the carbonate matrix represents an important recovery mechanism. The enhancement of imbibition can be achieved by reduction of interfacial tension between oil and water phases, and wettability alteration of rock surface. Among the two factors, wettability alteration is considered dominating when conducting spontaneous imbibition, and many imbibition experiments have been reported in the literature targeting the wettability alteration to enhance oil production using different methods (Al-Hadhrami and Blunt, 2001; Zhang et al., 2006). Optimizing the salinity and ionic composition of injection brine can alter the wettability of carbonate rock surface because of surface charge alteration and microscopic anhydrite dissolution (RezaeiDoust et al., 2009). It was also reported that the favorable low salinity SmartWater/polymer synergy extends to spontaneous imbibition (AlSofi et al., 2019). The trials of optimized brine injection confirmed that in-house research results can be replicated at the well level (Yosef et al., 2012). Nanoparticles have been studied extensively for their wettability alteration ability. The presence of nanoparticles in the three-phase contact region creates a wedge structure, resulting in the removal of oil from the surface (Nazari et al., 2015).","PeriodicalId":143998,"journal":{"name":"82nd EAGE Annual Conference & Exhibition","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124466088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Digital Sedimentology – a new tool for increasing the value of the pétrographie study 数字沉积学——一种提高沉积学研究价值的新工具

82nd EAGE Annual Conference & Exhibition Pub Date : 1900-01-01 DOI: 10.3997/2214-4609.202112747

E. Zhukovskaia, M. Tugarova, V. Krutko, B. Belozerov

引用次数: 0

ROLE OF ADVANCED GEOPHYSICAL PROCESSING IN SEARCHING FOR THE NEXT GIANT GOLD-COPPER DEPOSIT IN NORTH SUMATRA 先进地球物理处理在北苏门答腊寻找下一个巨型金铜矿床中的作用

82nd EAGE Annual Conference & Exhibition Pub Date : 1900-01-01 DOI: 10.1130/abs/2021am-371483

M. Morse, D. FitzGerald, J. Keetley, Simge Ayfer

引用次数: 0

Research on First-Break Picking Using Convolution Neural Networks 基于卷积神经网络的首破拾取研究

82nd EAGE Annual Conference & Exhibition Pub Date : 1900-01-01 DOI: 10.3997/2214-4609.202112709

W. Hsu, X. Xu, K. Zhang, Z. Li, D. Wang, Z. Wei

引用次数: 0

Multichannel Abnormal Amplitude Reserving Attenuation Based on Data Random Reconstruction and Its Application 基于数据随机重构的多通道异常幅度保留衰减及其应用

82nd EAGE Annual Conference & Exhibition Pub Date : 1900-01-01 DOI: 10.3997/2214-4609.202112706

Y. Yundong, S. Qin, Z. Huahui, Q. Shuhai, L. Huan

引用次数: 0

Monitoring of CO2 Saturation Plume Movement from Time-Lapse Inverted-Seismic and Gravity Data Using an Ensemble-Based Method 基于集成方法的时移反演地震和重力数据CO2饱和羽流运动监测

82nd EAGE Annual Conference & Exhibition Pub Date : 1900-01-01 DOI: 10.3997/2214-4609.202112746

T. Bhakta, M. Lien, T. Mannseth

引用次数: 1

Optimizing digital image analysis of thin sections for reliable pore network characterization 优化薄片的数字图像分析，以获得可靠的孔隙网络表征

82nd EAGE Annual Conference & Exhibition Pub Date : 1900-01-01 DOI: 10.3997/2214-4609.202112795

V. Chandra, X. Liu, V. Vahrenkamp

引用次数: 0

FWI velocity and imaging: A case study in the Johan Castberg area FWI速度和成像:以Johan Castberg地区为例

82nd EAGE Annual Conference & Exhibition Pub Date : 1900-01-01 DOI: 10.3997/2214-4609.202112763

N. Salaun, M. Reinier, I. Espin, G. Gigou

{"title":"FWI velocity and imaging: A case study in the Johan Castberg area","authors":"N. Salaun, M. Reinier, I. Espin, G. Gigou","doi":"10.3997/2214-4609.202112763","DOIUrl":"https://doi.org/10.3997/2214-4609.202112763","url":null,"abstract":"The Greater Castberg survey was acquired in 2019 using a source-over-spread acquisition design with an additional source at the front of the streamers, towed by the receiver boat, to permit recording of longer offsets. Starting from an initial anisotropic model, time-lag full waveform inversion (TLFWI) was used to compute a 13 Hz velocity model over the 5000 km2 area, which led to a much improved migration image (e.g., better imaged reservoir flat spots). When pushing the inversion frequency up to 90 Hz, the resultant TLFWI velocity model enabled more detailed delineation of reservoir boundaries compared to the migration image. Furthermore, the FWI Image as an alternative view of the FWI velocity model, provided access to new reflectivity information, overcoming some limitations of current migration tools. The use of the full wavefield, including refraction, reflection of primary, multiple and ghost, greatly enhanced image without needing the complex data pre-processing required by conventional imaging. In the context of thick gas clouds, this new imaging technique provided accurate sub-gas reflectivity, which effectively enhanced event continuity compared to reverse time migration (RTM) results.","PeriodicalId":143998,"journal":{"name":"82nd EAGE Annual Conference & Exhibition","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126425750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

An effective scheme of pseudo-time Joint migration inversion with an AVO mitigating workflow 一种具有AVO缓解工作流程的伪时间联合偏移反演方法

82nd EAGE Annual Conference & Exhibition Pub Date : 1900-01-01 DOI: 10.3997/2214-4609.202112770

S. Qu, D. Verschuur

引用次数: 1

82nd EAGE Annual Conference &amp; Exhibition最新文献

82nd EAGE Annual Conference & Exhibition最新文献