准噶尔盆地低渗油藏地层测试技术研究

低渗储层的流体渗流具有明显的非达西渗流特性,在试油过程中,即使地层没有受到污染,流体也需要克服一定的阻力之后才能开始流动。因此,对于低渗油气藏的试油,不仅准确求取产能难度大,而且获取稳定的地层压力和储层参数更是十分困难。通过有针对性的测试工艺技术研究,采用合理分配测试时间方案、积极推广分层跨隔测试技术、利用测试技术进行压裂效果评价等,圆满地解决了低渗透储层试油测试中获取资料困难的问题。     

用于低渗透油田的腐殖酸高温堵剂研究

主要研究了一种耐高温体系，该体系由腐殖酸钠、甲醛，增强剂和0.02％的HPAM溶液四部分组成，考察了腐殖酸钠质量分数、甲醛质量分数、pH值、矿化度的变化对堵剂性能的影响，通过正交实验得出堵剂的最优配方并对该配方进行了评价。结果表明，该堵剂基液初始粘度为10mPa·s，易于输送和泵入，成胶时间18h，成胶后的强度为0.087MPa，最佳适用的pH值范围为7～9，具有良好的耐温抗盐能力、长期稳定性、封堵性能及廉价等优点，在高温低渗透油田具有广阔的应用前景。     

Preventive and curative importance of the baropodometric analysis for ergonomics and occupational health

The pressure distribution on the plantar surface may reveal information not only about the feet structure, also it may bring out information about the entire body posture not only on health but also pathologic conditions. The application in ergonomics and occupational health gives access to the postural correction that on a long term may provoke professional injuries giving presition and security. This study is on 132 workers of Universidad de las Américas.     

Evaluation and redesign of manual material handling in a vaccine production centre's warehouse

This study was conducted in a warehouse at a vaccine production centre where improvement to existing storage and working conditions were sought through the construction of a new refrigerated store section (2-8C°). Warehousing tasks were videotaped and ergonomics analysis tools were used to assess the risk of developing MSDs. Specifically, these tools were the Rapid Entire Body Assessment (REBA) and the NIOSH equation. The current plant layout was sketched and analyzed to find possible targets for improvement trough the application of general work space design and ergonomics principles. Seven of the eight postures evaluated with REBA had a total score between 8 and 10, meaning a high risk, and only one was at a medium risk level. Nine of the eleven manual material handling tasks analyzed with the NIOSH equation had a Lifting Index between 1.14 and 1.80 and two had a recommended weight limit of 0 kg, indicating a need for job redesign. Solutions included the redesign of shelves, the design of a two-step stair and a trolley with adjustable height; also, changes in work methods were proposed by introducing a two-workers lifting strategy and job rotation, and, finally, a restructuring of plant layout was completed.     

Puerto Rican drug users experiences of physical and sexual abuse: comparisons based on sexual identities

This study integrates the results of quantitative and qualitative methods to elucidate the association between sexual identity and physical and sexual abuse among Puerto Rican drug users. A structured questionnaire was administered to 800 subjects in New York and 399 in Puerto Rico. A total of 93 subjects (7.9%) self-identified as homosexual or bisexual. Gay males were significantly more likely than heterosexual males to report first occurrence of physical abuse by a family member in childhood. Both gay and bisexual males were more likely than their heterosexual counterparts to report first experiencing unwanted sex in childhood and intimate partner physical abuse later in life. Lesbians were more likely than female heterosexuals to report unwanted sex in childhood. Qualitative data were collected through in-depth life histories with 21 subjects and suggest that gay and lesbian subjects perceive antihomosexual prejudice on the part of family members as one cause of childhood physical and sexual abuse.     

石油网格数据挖掘新技术研究

针对石油勘探开发中很多TB级和PB级的数据集在许多情况下分布在一个组织的不同地点或不同组织的多个数据源被集团内所有用户共享的特点,用网格数据挖掘数据集成技术和网格数据挖掘本体技术,作为石油勘探开发行业业务工作流程的信息处理基础设施,以满足石油工业对高性能计算技术的持续需求。提出了Web service与网格技术融合、网格与数据集成技术结合和本体与Web service合成,给出了基于Globus Toolkit 4、开放式网格服务体系结构和Web服务的技术实现方案。研究表明：网格计算中的任务管理、任务调度和资源管理等服务可以为分布式数据挖掘提供极大的便利。     

江汉盆地沙市组蒸发岩沉积充填与成藏特征

由于构造和气候因素的差异,江汉盆地沙市组的上段和下段具有不同的沉积充填特征。沙市沉积早期为弱断陷构造背景,湖盆彼此分隔闭塞,受中、亚热带干旱气候影响,在断陷区形成盐湖相蒸发岩充填,表现为浓缩型沉积序列特征;沙市晚期为拗陷型构造背景,盆地持续下降,湖盆范围扩大,湖水逐渐淡化,形成三角洲—咸水湖相充填,表现为淡化型沉积序列特征。盆地的沉积充填特征控制了蒸发岩地层生、储、盖等成藏要素的差异,表现为不同的油气成藏模式。浓缩型沉积序列的蒸发岩及盐间泥岩提供了烃源岩条件,盐间的膏岩、泥岩提供储层条件,蒸发岩提供盖层条件,为盐间非砂岩油气成藏模式;淡化型沉积序列的湖相泥岩及前三角洲泥岩提供烃源岩条件,三角洲前缘各微相砂体提供储层条件,蒸发岩提供盖层条件,为盐下砂岩油气成藏模式。     

广东省区域金融发展差异与经济增长关系的实证研究

据PMG估计量分析,广东区域金融发展差异与经济增长的关系是:从长期效应关系看,广东4大经济区域的金融差异对经济增长都有负效应,但在不同区域影响的效应并不相同,山区经济区对区域金融差异的变化反应最为敏感,珠三角地区并不是最大的.值得关注的是东翼地区的金融发展差异对人均GDP增速的影响在不断增加.从短期效应看,珠三角经济区人均GDP的短期变化不受短期区域金融差异的影响,但东西两翼及山区,区域金融差异的变化对这3个地方的人均GDP变化有显著的负效应.在珠三角和山区5市短期抑制效应具有统计上的显著性,说明在这两个区域金融业的作用对经济增长的作用更为重要.     

岩芯电容率特征研究及其在流体识别中的应用

由于频散影响因素多,产生机理不清,并且测井时其实部和虚部的计算存在错误,导致了“实部不实,虚部不虚”的结果,制约了复电阻率测井技术在油田的应用和发展。对油田大量岩芯的实验测量发现,地层的电容率信号对油气的响应更显著：NaCl 溶液的电容随着测量极板距离的增加按负平方关系减小;随着溶液浓度的增加按平方关系增加;随着频率的增加按负幂指数规律减小。NaCl 溶液电阻率和电容率对比发现,相同条件下,电容率的变化率比电阻率明显,从而证明了地层电容率比电阻率对地层压力、孔隙度、流体矿化度和饱和度等地层参数响应更敏感。基于这样一个发现,仿照阿尔奇公式,建立了以电容率为核心参数的含水率和矿化度计算公式,进而识别流体类型。油田双侧向电阻率测井实际资料证明,利用电容率信号可以更好地识别地层流体。