振动采油工艺及增产效果分析     

刘志荣  安志勇 《东北地震研究》1997,13(3):58-65

振动采油工艺是近两年研究开发的一种物理采油新工艺，尽管起步晚，增产机理还不清楚，但它的应用效果及推广前景引起了人们的关注和重视。本文就这一工艺研究开发进展情况作了概述，地增产效果进行了分析。  相似文献   

几个矿床技术经济评价问题探讨     

张福祯 《化工矿产地质》1997,19(1):58-62

矿床技术经济评价在地质勘查工作中占有重要地位。目前编写地质勘查报告都必须包括技术经济评价章节。但我国矿床技术经济评价的理论和方法还存在一些问题，某些评价方法和基本概念还不够统一。通过对投资回收期、净现值、总现值、销售成本、经营成本等参数的研究认为，矿床技术经济评价要进一步规范化。  相似文献   

松潘两岔河高砷高锑金矿石氰化提金工业试验     

饶经谋 《四川地质学报》1997,(1)

高砷高锑金矿石属难处理矿石之一，通过对两岔河高砷高锑金矿石采用碱浸预处理后进行堆浸和池浸氰化提金试验，获得了金浸出率76．80％和86．76％的较好指标，为该矿床的开发利用提供了一个工艺简单、经济上可行的途径。  相似文献   

北京地区遥感环形构造信息提取与金矿预测   总被引：7，自引：2，他引：7  

王四龙  王西华 《地质与勘探》1996,32(4):36-39

解译了北京地区航片上的环形构造，对环形构造解译图进行了数字化处理，运用数理统计方法分析了环形构造的空间分布特征及其与金矿化作用的关系，最后得到了环形构造密度异常与金矿分布之间具有正相关关系等新认识。  相似文献   

无锡、常州郊区发生地裂缝     

胡建平 《江苏地质》1996,20(1)

无锡、常州郊区发生地裂缝近年来，无锡石塘湾西蔡一秦村～带、常州横林分别出现了地裂缝，其中以钱桥毛村园最为严重，该处地裂缝于１９９１年夏初步形成，随后不断扩大，目前已具一定规模，长约７００ｍ，总体宽约６０ｍ，呈近东西向分布，并造成附近数十间楼房产生大量...  相似文献   

Hydrous pyrolysis of a Type III source: fractionation effects during primary migration in natural and artificially matured samples     

C.S. Mishra  U. Samanta  A. Gupta  N.J. Thomas  K.N. Misra 《Organic Geochemistry》1996,25(8):489-505

A core from the Cambay Shale Formation of the Cambay Basin, containing immature Type III organic matter, was pyrolysed at 300°C for different durations of time to different maturation levels. Fractionation effects were studied employing a three-step extraction technique after removal of the expelled pyrolysate. The extractable organic matter (EOM) obtained on extraction of the whole core is assumed to be that present in open pores, while that obtained on finely crushing the sample is assumed to be that present in closed pores. The EOM obtained from 1 cm chips is termed EOM from semi-open pores. The gross composition of the pyrolysates expelled during pyrolysis is not similar to the oils reservoired in the area, and there is no significant fractionation observed between expelled pyrolysates and unexpelled EOM. Our study indicates movement of fluids between closed, semi-open and open pores. In both systems, there is a higher concentration of EOM in open pores than in semi-open and closed pores, and the fraction of EOM in open pores is much greater in the artificial system than in the natural system. Fractionation effects on n-alkane and isoprenoid hydrocarbon-based parameters were also studied. n-Alkenes are present in semi-open and closed pores of the immature core and in the core after it was pyrolysed to 300°C for 6 and 48 h, but are absent in the open pores. n-Alkenes are present in closed pores in the naturally matured core. Presence of n-alkenes in the pyrolysates expelled during the 6 and 48 h experiments, but their absence in the open pores of the core, indicates that expulsion also occurs through temporary microfractures during laboratory pyrolysis, whereas in the natural system expulsion from closed pores seems to be only via semi-open and open pores.  相似文献   

斜坡稳定性分析的模糊综合评判应用初探   总被引：1，自引：0，他引：1       下载免费PDF全文

冉恒谦 《探矿工程》1996,(6):19-22

采用两级模糊综合评判方法，在对评判实例的稳定性因素的定性分析基础上，选取主要因素四类１４项作为稳定性评价指标并将其定量化，按稳定，较稳定，较不稳定和不稳定四个级别进行综合评判，评判结果与斜坡的实际情况有较好的一致性。  相似文献   

综合信息解译图件智能化处理模型     

刘超  王于天 《物探化探计算技术》1996,18(1):82-87

解译过程的智能化实现，一直是综合信息矿产预测理论与实践中所关注的问题。本文根据综合信息解译的特点，分析了实现智能化过程的基本方法，设计了开发智能解译系统的模型。本模型集图像分析与处理技术和专家系统技术为一体，体现了解译过程的本质特征。文中论述了它们的基本任务和要求。本模型对建造不同研究内容、不同解译任务的智能化系统具有指导作用  相似文献   

古潜山火成岩裂缝带划分与孔隙度计算   总被引：3，自引：0，他引：3  

李瑞  李能根 《物探化探计算技术》1996,18(2):167-170

针对火成岩岩性成分复杂，常规测井难以正确划分岩性，严重阻碍了储层参数的定量计算。本文提出模糊聚类划分岩性，采用综合概率法与混合体积模型计算裂缝孔隙度、有效孔隙度等参数。其测井解释结果与井壁取心和地质描述资料对照，完全吻合。  相似文献   

Supercritical Carbon Dioxide Extraction of Organic Matter from Petroleum Source Rocks and Its Implications   总被引：2，自引：0，他引：2  

沈忠民  周光甲等 《中国地球化学学报》1996,15(4):324-330

Organic matter was experimentally extracted by supercritical fluids(CO2 1% isopropanol)from petroleum source rocks of different thermo-maturities at different buried depths in the same stratigraphic unit in the Dongying Basin.The results show that supercritical fluid extraction(SFE)is more effective than Soxhlet extraction(SE),with higher amounts and greater varieties of hydrocarbons and soluble organic matter becoming extractive.The supercritical CO2 extraction is therefore considered more valuable in evaluation of petroleum source rocks and oil resources,particularly those of immature types.  相似文献