API RP 2A在导管架结构设计中的应用

本文概述了API RP 2A和API RP 2N(对有冰海域)推荐作法对导管架结构设计所起的重要作用,并用MUQ导管架结构设计这一实例来说明海工结构的设计和结构分析离不开API RP 2A。API RP 2A是海工结构工程师设计过程中必备的武器,必须熟练地掌握和运用。     

基于API RP 2GEO规范的钢桩轴向承载力分析

打入式开口钢桩作为桩基础的基本形式,广泛应用于海洋工程中。准确地计算钢桩在土壤中的轴向承载能力对海上油气安全生产至关重要。本文主要基于API RP 2GEO(2014)规范提出的桩承载力计算方法进行研究,并结合实际工程项目实例,详细介绍了桩基础承载能力的计算方法,力求使读者能够根据本文更为准确地评估钢桩在土壤中的承载能力。     

南昌细粒土塑性图

本文分析了当前国际上土质分类的特点,回顾了国内土质分类状况,为配合制定我国的土质统一分类标准,据江西省建筑设计院历年来在南昌的1227个钻孔、1931筒土试料的有关勘察试验资料,综合绘制成南昌细粒土塑性图,并与美国的统一分类法、我国土工试验规程等之塑性图进行了比较,从而为我国制定细粒土塑性图提供地区性的资料。最后,以我院土质指标绘于塑性图上,可以看出这些点基本上与南昌A线重合。因此,可以初步认为南昌细粒土塑性图对地处长江中游北岸的湖北沙市一带也是适用的。     

九江石化延迟焦化吸收稳定完善改造工艺设计

阐述了中国石化九江分公司延迟焦化吸收稳定完善改造的背景及目的,确定了改造的设计规模及物料平衡,详细描述了吸收稳定工艺流程、热源匹配和设备选型等方面的内容,并对改造后装置的运转情况和技术及经济指标进行了简要说明。     

A DETAILED CHEMICAL ANALYSIS OF CHANGES TO BITUMEN PRODUCED BY THE IN SITU COMBUSTION PROCESS AT THE OXYGEN WOLF LAKE PROJECT, ALBERTA PART 2: DISTILLATION CUTS AND CHROMATOGRAPHIC FRACTIONS

The detailed chemical changes in bitumen brought about over a one year period by an in situ combustion process in an oil sands reservoir have been investigated. The analytical data for the distillation cuts and chromatographic fractions from a core sample and a number of produced oil samples revealed significant changes as a result of the recovery process, particularly for the naphtha and middle distillate cuts. The residue cut did not exhibit any increase in heteroatom or asphaltene content. None of the changes to the produced oil samples would be expected to negatively impact on the subsequent upgrading process. The relationship between the observed changes to the fractionated oil samples and the dynamics of the in situ combustion process are discussed.     

A DETAILED CHEMICAL ANALYSIS OF CHANGES TO BITUMEN PRODUCED BY THE IN SITU COMBUSTION PROCESS AT THE OXYGEN WOLF LAKE PROJECT,ALBERTA PART 2: DISTILLATION CUTS AND CHROMATOGRAPHIC FRACTIONS

ABSTRACT

The detailed chemical changes in bitumen brought about over a one year period by an in situ combustion process in an oil sands reservoir have been investigated. The analytical data for the distillation cuts and chromatographic fractions from a core sample and a number of produced oil samples revealed significant changes as a result of the recovery process, particularly for the naphtha and middle distillate cuts. The residue cut did not exhibit any increase in heteroatom or asphaltene content. None of the changes to the produced oil samples would be expected to negatively impact on the subsequent upgrading process. The relationship between the observed changes to the fractionated oil samples and the dynamics of the in situ combustion process are discussed.     

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四川南充轻烃回收装置采用热分离机制冷工艺，装置每天生产液化气１．５ｔ，轻油１．０ｔ，热分离机的等熵效率仅为３５％～４０％，丙烷收率不足１５％，回收装置经济效益较差。因此，为了提高回收装置的产品收率和经济效益，对其工艺装置进行技术改造十分必要。由于热分离机的等熵效率低，制冷效果差，热分离机出口含大量的液烃未回收，脱乙烷塔顶温度比原设计值偏高，造成回收装置丙烷收率低。采用ＳＨＢＷＲ状态方程作为工艺计算模型，通过工艺计算和方案对比分析，在充分利用现有流程中的设备、节省改造费用的条件下，提出了透平膨胀机制冷、二次分离的工艺改造方案。改造后的轻烃回收装置于１９９７年１２月投产，与原有装置相比，降低了制冷温度，提高了液烃收率，达到了工艺设计的改造效果。     

催化裂化装置吸收稳定系统进料工艺分析

应用HYSYS化工过程模拟软件对催化裂化装置吸收稳定系统进行模拟。根据模拟结果，对整个系统的工艺特性、能耗和吸收效果进行了全面分析，澄清了某些模糊概念，指出双塔流程冷进料工艺在总能量消耗、吸收效果和扩能增效方面均优于双塔流程双股进料工艺。一套0．8Mt／a吸收稳定系统从双股进料改为冷进料后的运行结果表明，冷进料是较合理的工艺流程。     

大庆油田开发地震高分辨率资料采集方法

通过对大量的现场集资料的分析,研究了高分辨率开发地震资料采集中仪器,激发生接收各环节对高分辨率地震采集的影响,进而采取有效性的技术措施,提高采集资料质量,形成了一套适应大庆地区的高分辨率开发地震采集方法。     

A DETAILED CHEMICAL ANALYSIS OF CHANGES TO BITUMEN PRODUCED BY THE IN SITU COMBUSTION PROCESS AT THE OXYGEN WOLF LAKE PROJECT, ALBERTA PART 1: WHOLE OIL SAMPLES.

The detailed chemical changes in bitumen brought about over a one year period by an in situ combustion process in an oil sands reservoir have been investigated. Relative to a core sample, the fireflood-produced oils exhibited a significant reduction in density and viscosity which began early in the production cycle. This behaviour was correlated with a marked increase in material boiling in the naphtha and middle distillate ranges and a concomitant decrease in the residue cut. The sulfur and nitrogen contents in the produced oils decreased relative to the core sample. A reduction in the acid number of the produced oil samples was coupled with an increase in the oxygen content as the firefiood proceeded. The relationship between these changes and the dynamics of the in situ combustion process are discussed.     

A DETAILED CHEMICAL ANALYSIS OF CHANGES TO BITUMEN PRODUCED BY THE IN SITU COMBUSTION PROCESS AT THE OXYGEN WOLF LAKE PROJECT,ALBERTA PART 1: WHOLE OIL SAMPLES.

ABSTRACT

The detailed chemical changes in bitumen brought about over a one year period by an in situ combustion process in an oil sands reservoir have been investigated. Relative to a core sample, the fireflood-produced oils exhibited a significant reduction in density and viscosity which began early in the production cycle. This behaviour was correlated with a marked increase in material boiling in the naphtha and middle distillate ranges and a concomitant decrease in the residue cut. The sulfur and nitrogen contents in the produced oils decreased relative to the core sample. A reduction in the acid number of the produced oil samples was coupled with an increase in the oxygen content as the firefiood proceeded. The relationship between these changes and the dynamics of the in situ combustion process are discussed.