SLRES地震储层反演及油气检测软件系统研制     

撒利明  刘全新  杨午阳  邓央 《应用地球物理》2005,2(1):63-69

本文介绍了地震储层反演及油气检测软件系统的构成和功能。  相似文献   

碳酸盐岩岩溶型储层综合预测   总被引：2，自引：0，他引：2  

陈广坡撒利明  韩剑发管文胜 《应用地球物理》2005,2(2):111-118,F0003

塔里木盆地碳酸盐岩岩溶型储层广泛分布于塔北、塔中、巴楚等地区，是塔里木盆地碳酸盐岩勘探的重点，也是塔里木油田增储上产的主要层系之一。由于埋藏深度大、反射信号较弱、信噪比较低，更由于岩溶型储层非均质性严重，使得储层预测的难度增大。通过多年的攻关研究，从碳酸盐岩风化壳储层的地球物理响应特征出发，逐步探索并建立了技术、岩溶型储层测井评价技术、岩溶型储层地震描述技术、应变量分析技术为手段的溶型储层综合评价技术。在塔北、以地质概念模型为基础，以基于层序格架的潜山古地貌恢复塔中等地区应用中取得了良好的地质效果，相继获得了工业油气流。本文介绍了该技术在塔北轮古西地区的具体实施和应用效果。  相似文献   

Les minéralisations Cu(NiBiUAuAg) d'Ifri (district du Haut Seksaoua,Maroc) : apport de l'étude texturale au débat syngenèse versus épigenèse     

Luc Barbanson  Alain Chauvet  Aziz Gaouzi  Lakhifi Badra  Mohamed Mechiche  Jean Claude Touray  Saı̈d Oukarou 《Comptes Rendus Geoscience》2003,335(14):1021-1029

The Cu ore of Ifri is a chalcopyrite stockwork hosted by Cambrian formations and was until now interpreted as a syngenetic massive sulphide deposit. Textural studies highlight two generations of pyrite early (Py I) and late (Py II) with respect to the regional deformation. The chalcopyrite stockwork overprinted Py II, outlining the epigenetic nature of the Cu mineralization. Regarding the origin of Cu-depositing fluids, the presence in the stockwork paragenesis of an U, W, Sn association and preliminary Pb/Pb dating of a brannerite belonging to this association suggest a contribution of the Tichka granite. To cite this article: L. Barbanson et al., C. R. Geoscience 335 (2003).  相似文献   

内蒙古草原NPP时空变化及驱动力   总被引：1，自引：1，他引：0  

滑永春  萨如拉  王冰 《中国沙漠》2021,41(5):130-139

植被净初级生产力（NPP）及驱动力分析是全球变化研究的核心内容。以1982—2015年内蒙古草原为研究对象,基于GIMMS NDVI3g、ERA5气象和草原类型数据,采用CASA模型生成年草原NPP。综合运用趋势分析、偏相关、复相关及残差分析法探讨1982—2015年草原NPP变化趋势,并定量确定气候因子和人类活动对草原动态变化的影响程度。结果表明：（1）内蒙古1982—2015年NPP极显著和显著增加的草原面积占草原总面积的11.76%、18.92%。NPP极显著和显著减少的草原面积占草原总面积的4.26%、8.08%。草原NPP增加的面积大于减少的面积,草原处于恢复状态。（2）内蒙古草原92.87%的区域NPP与气候因子之间表现出很好的相关性,气温驱动、降水驱动和降水、气温复合驱动分别占总面积的2.06%、70.71%和20.11%,气候变化对3种草原影响程度荒漠草原>典型草原>草甸草原。（3）人类活动对草原NPP也产生很大影响。其中起到正向作用通过显著性检验（P<0.1）的区域占草原总面积的41.12%,起到负作用（P<0.1）的占5.34%。综上所述,1982—2015年内蒙古草原总体处于恢复状态,在气候和人类活动共同作用下生态环境得到了极大改善。  相似文献   

BCC_AGCM大气环流模式异构众核加速技术   总被引：1，自引：0，他引：1  

肖洒  魏敏 《气象科技》2018,46(2):245-249

针对未来高性能计算在CPU混合架构上的发展趋势,本文对大气环流模式BCC_AGCM中的部分核心段在混合架构的神威·太湖之光高性能计算机系统上进行众核加速分析与优化。文中以核心段quad为例,通过对代码内容结构重写和使用OpenACC语言对程序进行运行指示的方式,将该核心段成功移植加速并通过了结果正确性验证。结果表明,使用OpenACC语言能够以对源代码的较小改动来获得一定的加速比,在异构环境中源代码优化加速提升的效果取决于程序结构、循环并行颗粒度以及地址连续性。  相似文献   

Oxygen-total inorganic carbon dioxide relationship in the Pacific Ocean     

Saúl Alvarez-Borrego  P. Kilho Park 《Journal of Oceanography》1973,29(5):193-202

The total inorganic carbon dioxide-oxygen relationship in the ocean has been studied previously using two different approaches, one of which is theoretical and the other is statistical. Discrepancies between the two sets of results have been solved in this work by applying multiple linear regression analysis to express total inorganic carbon dioxide, normalized to constant S‰, as a function of potential temperature and total alkalinity and oxygen normalized to constant S ‰. Results of the regression are in agreement with the assumption that total alkalinity changes in the open ocean are only due to S ‰ changes and calcium carbonate dissolution or precipitation; and with Redfield's model for the prediction of the total inorganic carbon dioxide-oxygen ratio for the biochemical oxidation.  相似文献   

Soil erosion determinations by using 137Cs technique in the agricultural regions of Gediz Basin, Western Turkey     

M. M. Saç  E. Yumurtaci  G. Yener  B. Camgöz  A. Uğur  B. Özden 《Environmental Geology》2008,55(3):477-483

Gediz Basin is one of the regions where intense agricultural activities take place in Western Turkey. Erosion and soil degradation have long been causing serious problems to cultivated fields in the basin. This work describes the application of two different ¹³⁷Cs models for estimating soil erosion rates in cultivated sites of the region. Soil samples were collected from five distinct cultivated regions subject to soil erosion. The variations of ¹³⁷Cs concentrations with depth in soil profiles were investigated. Soil loss rates were calculated from ¹³⁷Cs inventories of the samples using both proportional model (PM) and simplified mass balance model (SMBM). When PM was used, erosion and deposition rates varied from −15 to −28 t ha⁻¹ year⁻¹ and from +5 to +41 t ha⁻¹ year⁻¹, respectively; they varied from −16 to −33 t ha⁻¹ year⁻¹ and from +5 to +55 t ha⁻¹ year⁻¹ with SMBM. A good agreement was observed between the results of two models up to 30 t ha⁻¹ year⁻¹ soil loss and gain in the study area. Ulukent, a small representative agricultural field, was selected to compare the present data of ¹³⁷Cs techniques with the results obtained by universal soil loss equation (USLE) applied in the area before.  相似文献   

TRAC98: Detection of Coherent Structures in a Convective Boundary Layer using Airborne Measurements     

Sandrine Bernard-Trottolo  B. Campistron  A. Druilhet  F. Lohou  F. Saïd 《Boundary-Layer Meteorology》2004,111(2):181-224

The TRAC98 experimental campaign (Turbulence Radar Aircraft Cells) devoted to coherent structures analysis took place over the Beauce plain (France) during summer 1998. It allowed us to collect a large dataset of airborne measurements in addition to various ground measurements. This study aims at diagnosing the occurrence of coherent structures within the atmospheric boundary layer (ABL) through airborne measurements. The statistical analysis performed as a first step from turbulent parameters underlined the homogeneity of the ABL over the Beauce plain. However mixed-layer scaling failed at the top of the ABL, even when taking into account the entrainment rate. Coherent structures were detected through the analysis of ABL isotropy, using the opportunity of sampling with two perpendicular crossing planes, one of them being aligned with the wind. This approach allowed us to determine an organization scheme of the ABL for three of the five flights (ARAT30, MIV30 and MIV27). For the ARAT30 flight, the analysis was pursued by focusing on measurements of fluctuations in the inner flight legs. In this way, the low-level cloud cover has been investigated from the downward visible radiation (VISD). The results indicated an anisotropy of the horizontal cloud size. Secondly, the variations of some parameters were analysed through lagged correlation functions. This allowed us to infer relationships between the vertical velocity, VISD, mixing ratio and lifting condensation level. Length scales have also been extracted, and confirmed the ABL organization during the ARAT30 flight. Finally, the anisotropy observed in various flights has been investigated with respect to the underestimation of the latent heat fluxes revealed by the imbalance of the surface energy budget.  相似文献   

一种基于多相介质理论的油气检测方法研究     

撒利明  王尚旭  牟永光  梁秀文  刘全新 《应用地球物理》2004,1(2):83-88

目前采用的油气检测方法和技术严格意义上讲都是基于单相介质理论的,而含油气储层是多相介质的,因此,造成了油气检测结果存在多解性和不确定性。本文以BIOT理论和实验室数据为依据,研究出一种快捷的油气检测方法。该方法已在中国塔里木、柴达木、准噶尔等盆地的10多个区块中得到应用,其检测油气的符合率高于现有的其它烃类检测技术。该方法在勘探阶段的油气检测方面和开发阶段油气藏动态监控方面具有广泛的应用前景。  相似文献   

Environmental and socioeconomic dynamics of the Indian Ocean tsunami in Penang,Malaysia     

Benjamin Horton  Michael Bird  Thomas Birkland  Susan Cowie  Ong Jin Eong  Andrea Hawkes  Gong Wooi Khoon  Lisa Law  Colin Macgregor  Aileen Tan Shau‐Hwai  Teh Tiong Sa  Zulfigar Yasin 《Singapore journal of tropical geography》2008,29(3):307-324

This paper addresses some of the environmental and socioeconomic dimensions of the 2004 Indian Ocean tsunami on Penang, Malaysia. We aim to offer wide access to unique and perishable data, while at the same time providing insight to ongoing debates about hazards, vulnerability and social capital. Our social survey examines some of the dynamics that shaped the tsunami impact, response and recovery process. While in terms of lives lost Penang may not conform to arguments surrounding vulnerable environments, the recovery process is more marked by social disparities in terms of the ability to access resources. Our physical survey records local topography, flow depth and flow direction, and charts the differential impact of the tsunami. Yet measuring hazards is not a straightforward process, and relies on reflexive methodologies and eyewitness accounts.  相似文献