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1.
КОПЫТОВ递减开发模型   总被引:10,自引:6,他引:4  
西方提出了Копытов递减开发模型,提出了开发速度,采出程度等开发指标的数学关系式。分析了参数对Копытов递减开发模型的影响,提出了开发初期Копытов递减开发模型的确定方法,便于开发初期决策。制作了Копытов递减开发模型的logVD-logRp图版,logVD-log(t/c)图版,logRp-log(t/c)图版。  相似文献   

2.
Logistic递减开发模型   总被引:14,自引:5,他引:9  
冯文光 《矿物岩石》2000,20(1):70-73
本文提出了Logistic 递减开发模型,提出了开发速度,采用程度等开发指标的数 学关系式。分析了参数对Logistic递减开发模型的影响。提出了开发初期Logisic递减开发模型的确定方法,便于开发初期决策。制作了Logistic递减开发模型的logVD-logRp图版,logVD-logat图版,logRp-logat图版。提出了开发中晚期Logistic递减开发模型的判断方法,三点抛物线法和三  相似文献   

3.
FWG2递减开发模型   总被引:9,自引:4,他引:5  
冯文光 《矿物岩石》2000,20(4):51-54
本文提出了FWG2递减开发模型,提出了开发速度,采出程度等开发指标的数学关系式,分析了参数对FWG2递减开发模型的影响,提出了开发初期FWG2递减开发模型的确定方法,便于开发初期决策,制作了FWG2递减开发模型的logVd-logRp图版,logVD~log(at)图版,logRp-log(at)图版,提出了开发中晚期FWG2递减开发模型的判断方法,三点抛物线法和三种图牌区配的拟合方法,为开发中晚期预测奠定了基础,FWG2递减开发模型是一种高精度直线递减模型。  相似文献   

4.
FWG1幂指数递减开发模型   总被引:15,自引:7,他引:8  
冯文光 《矿物岩石》1999,19(4):66-69
本文提出了FWG1幂指数递减开发模型,提出了开发速度,采出程度等开发指标的数学关系式。分析了参数对FWG1幂指数递减开发模型的影响。当c^1/2t=1时,VD=e^-1为不动点。提出了开发初期FWG1幂指数递减开发模型的确定方法,便于开发初期决策。  相似文献   

5.
FWG3递减开发模型   总被引:6,自引:2,他引:6  
冯文光 《矿物岩石》2001,21(1):52-54
本文提出了FWG3递减开发模型,提出了开发速度,采出程度等开发指标的数学关系式,分析了参数对FWG3递减开发模型的影响,提出了开发初期FWG3递减开发模型的确定方法,便于开放初期决策,制作了FWG3递减开发模型的log VD-log Rp图版,log VD-log(根号at)图,版logRp-log(根号at)图版,提出了开发中晚期FWG3递减开发模型的判断方法,三点抛物线法和三种图版匹配的拟合方法,为开发中晚期预测奠定了基础,FWG3递减开发模型是一种先慢后快的递减开发模型。  相似文献   

6.
QUANTITATIVEDYNAMICSTRATIGRAPHY(QDS)Duringthepastfewdecadesindependentstudiesofsedi-mentarybasinswerecarriedoutalongdiferenta...  相似文献   

7.
王钢  王宗花 《地质实验室》1995,11(4):214-216
研究了混合增效试剂CTMAB和Brij-35对Cd(Ⅱ)-H2Qs体系的影响,在Cd(Ⅱ)-H2Qs体系中加入CTMAB+Brij-35后,比单独使用CTMAB或Brij-35效果更好。大大提高了反应的灵敏度,在0-4.0μg/25mLCd范围内,Cd深度与△F值呈良好的线性关系,方法检测限为9.12ng/mL,RSD为1.93%,可用于地质样品中镉的测定。  相似文献   

8.
改进快速模拟退火方法进行AVO岩性参数反演   总被引:18,自引:0,他引:18  
顾汉明  江涛  王家映 《地球科学》1999,24(4):418-422
以广义波乐兹曼的吉布斯(Boltzmann-Gibbs)统计理论为基础,将数认(numcral)和依赖于温度的似柯西(Gauchy)分布相结合建立一种新的扰动模型,改进接受概率,提出了一种非常快速模拟退火法(very fast simulated annealing)。通过多参数的振幅随炮检距变化(AVO)的合成数据和实际投资试算结果表明,该方法能在高温下进行大范围内的搜寻,解的稳定性好和抗随机干  相似文献   

9.
EarthScience-JournalofChinaUniversityofGeosciencesAbstracts(Volume18,1993)¥//GareiencebankingOnsystemahcviewinpaleontologyalx...  相似文献   

10.
PROGRESSINTHEDEVELOPMENTOFAHIGH-LEVELRADIOACTIVEWASTEREPOSITORYINTHEUNITEDSTATES¥//(美)PaulA.Witherspoon(LawrenceBerkeleyNatio...  相似文献   

11.
修正GOMPERTZ峰型开发模型   总被引:3,自引:0,他引:3  
冯文光  龚久和 《矿物岩石》2003,23(3):97-100
修正Gompertz峰型开发模型,包括开发速度、采出程度等油气开发指标。利用修正Gompertz峰型开发模型进行开发早期决策。修正Gompertz峰型开发模型亦可用于中晚期的匹配拟合的三种典型图版,即logVD-logRP典型图版,logVD-log(at)典型图版和10gRP-log(at)典型图版。  相似文献   

12.
由于缺乏早期资料,设计早期油气田(藏)开发方案是非常困难的。在制作翁氏模型的Qctm/No-ER图版和ER-ctR图版过程提出根据探明储量No、经济极限产量Qc、假定达到峰值产量的时间tm、最终采收率ER,由翁氏模型的Qctm/No-ER图版求取增长指数b,由翁氏模型ER-ctR图版求取ctR,再求出其他参数及所有的油气田(藏)开发指标,完成早期油气田(藏)开发方案设计。  相似文献   

13.
Weibull模型在油气田早期开发方案设计中的应用   总被引:2,自引:0,他引:2  
龚久和  冯文光 《矿物岩石》2003,23(1):98-100
油气田开发早期勘探程度低,已知储层参数少,正确确定油气田开发方案是世界难题。制作Weibull开发模型的Qc/Qmax-ER图版的根据是探明储量、峰值产量及经济极限产量,假定采收率、生产年限,采用该图版油气田(藏)早期全局最优开发方案设计的方法,可以对整个开发期的各种开发指标进行预测。  相似文献   

14.
油田开发阶段储层参数精细评价   总被引:10,自引:2,他引:8  
以胜索油田为例,详尽论述了油田开发阶段储层参数精细评价的思路和方向,包括测井资料预处理与标准化、不同开发时期储层四性参数变化分析、测井解释模型建立及参数求取、储层参数模糊评价。开发阶段应通过储层四性分析,利用生产测试资料和神经网络方法建立测井解释模型及处理,能有效提高解释度。精细处理结果及模糊数学方法的应用,准确地定量表征了储层的优劣,在油田剩余油挖潜中产生了较好的应用效果。  相似文献   

15.
The capability of accurately predicting mineralogical brittleness index(BI)from basic suites of well logs is desir-able as it provides a useful indicator of the fracability of tight formations.Measuring mineralogical components in rocks is expensive and time consuming.However,the basic well log curves are not well correlated with BI so correlation-based,machine-learning methods are not able to derive highly accurate BI predictions using such data.A correlation-free,optimized data-matching algorithm is configured to predict BI on a supervised basis from well log and core data available from two published wells in the Lower Barnett Shale Formation(Texas).This transparent open box(TOB)algorithm matches data records by calculating the sum of squared errors be-tween their variables and selecting the best matches as those with the minimum squared errors.It then applies optimizers to adjust weights applied to individual variable errors to minimize the root mean square error(RMSE)between calculated and predicted(BI).The prediction accuracy achieved by TOB using just five well logs(Gr,pb,Ns,Rs,Dt)to predict BI is dependent on the density of data records sampled.At a sampling density of about one sample per 0.5 ft BI is predicted with RMSE~0.056 and R2~0.790.At a sampling density of about one sample per 0.1 ft BI is predicted with RMSE~0.008 and R2~0.995.Adding a stratigraphic height index as an additional(sixth)input variable method improves BI prediction accuracy to RMSE~0.003 and R2~0.999 for the two wells with only 1 record in 10,000 yielding a BI prediction error of>±0.1.The model has the potential to be applied in an unsupervised basis to predict BI from basic well log data in surrounding wells lacking mineralogical measure-ments but with similar lithofacies and burial histories.The method could also be extended to predict elastic rock properties in and seismic attributes from wells and seismic data to improve the precision of brittleness index and fracability mapping spatially.  相似文献   

16.
《China Geology》2019,2(2):211-217
At present, most shale gas exploration and development areas in China are difficult to provide sufficient and effective production data to support economic evaluation, since they are still in the initial stage of low exploration level. In addition, ecological and environmental factors are not taken into account in the evaluation process, which does not meet the needs of green energy development of China. Aiming at above problems, the dynamic economic evaluation method of shale gas resources based on calculus principle is proposed. The Arps hyperbolic decreasing curve model will be used in the evaluation of single shale gas well production, which can evaluate single well production of shale gas by fitting the existing dynamic production data to generate the production decreasing curve. Therefore, the variation regularity of the cumulative production of single well shale gas within the study area can be obtained by the model mentioned above. According to the variation regularity of the cumulative production obtained from the Arps hyperbolic decreasing curve model, the recovery period of single well cost, ultimate economic life and the ultimate economic resource can be evaluated dynamically by analyzing the variation regularity of the cumulative sales revenue and cumulative input cost of single shale gas well. Then the evaluation result can be further extend to the whole evaluation areas, in order to analyze shale gas resources ’ economic value in evaluation regions under different shale gas price conditions. The results of the above evaluation methods are not only conducive to improving the economic benefits of relative shale gas development enterprises, but also provide a basis for the national energy strategy deployment.© 2019 China Geology Editorial Office.  相似文献   

17.
新场气田J3p含气砂体预测研究   总被引:5,自引:0,他引:5  
段文Shen  张虹 《矿物岩石》1999,19(2):37-40
利用三维地震资料和大量钻井、测井数据,据储层特征分析以及对储层精细标定,建立含气砂体的地震响应模式,追踪含气砂体,并通过沿层特征参数提取,作出地震相平面图,再结合地质、测井相分析成果,对地震相进行沉积相(微相)解释,准确预测含气砂体的平面分布,形成含气砂体横向预测方法。  相似文献   

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