一种轨道式抽油泵脱节器地面试验装置

以油田抽油泵脱节器经常出现入井后一次对接成功率低为例,介绍了一种地面对接试验装置及其实验装置的原理、结构特点与使用要求。通过现场使用,证明该装置具有结构合理、经济实用的特点。

治理大泵脱节器断脱的有效途径

从生产管理、技术措施调整两方面分析了大泵脱节器断脱比例逐年上升的原因,分析认为在见聚范围扩大、见聚浓度上升的情况下,大泵脱节器在抽油机井生产管理、技术管理方面没有进行动态的调整是导致脱节器断脱比例逐年上升的直接因素。

抽聚泵的研制与应用

聚合物驱油技术作为油田高效持续稳产的重要措施,在油田的应用规模越来越大,对于抽油机井,随着采出液含聚浓度升高出现杆管偏磨、断脱及脱节器损坏等现象,导致油井有效生产时率下降、检泵周期大幅度缩短、管杆材料消耗急剧增加。针对上述聚驱抽油机井存在的问题,进行了抽聚泵的研制,经现场应用,实现延长其自身的检泵周期一倍以上。

检泵质量分析及改进措施

随着油田开发已到后期,自喷井产能不断的下降,抽油井占据了产油的主导地位,为降低成本、提高效益,我们对造成频繁检泵作业的主要原因进行科学的总结的分析研究,采取相应的措施,提高了检泵质量,取得了明显的经济效益。

30 and 32 kDa outer membrane proteins of Bordetella pertussis as a modulator on promoting degranulation of mast cells

The correlation between the activities of the outer menbrane proteins （OMPs） of Bordetella pertussis and the lgE-mediated asthma was investigated in the present study, in which the OMPs of B. pertussis and their components were prepared by detergent treatment and chromatography, and the molecular weights of the OMPs components were determined by SDS-PAGE. The amounts of total as well as the ovalbumin （OVA）-specific IgE induced by dead B. pertussis whole bacterial vaccine on guinea pigs were detected by ELISA. Meanwhile, the effect of the OMPs and their components to promote the degranulation of guinea pig mast cells was observed by using the mast cell degranulation test, and ELISA assay was used to measure the histatmine levels in the supematants from the mast cell cultures. Histamine sensitive test was used to demonstrate the effects of the OMPs and their components to increase the histamine lethal sensitivity in mice. It was found that four components with molecular weights of 30, 32, 38 and 69 kDa could be obtained from the OMPs of B. pertussts, and the dead whole bacteria vaccine of B. pertussis had the ability to increase the levels of the total as well as the OVA-specific IgE in sera of guinea pigs. The OMPs and their 30 and 32 kDa components demonstrated significantly enhancing effect on the degranulation of guinea pig mast cells, and the histamine levels in the supematants from the mast cell culture treated with OMPs and their 30 and 32 kDa components were also significantly increased. It is evident that the strong adjuvant activity and the enhancing effect to degranulation of mast cells and the release of histamine of certain outer membrane components of B. pertussis could be demonstrated as revealed by the results of the present study, suggesting the possibility of a close relationship between the infection of vaccination with B. pertussis and the IgE-mediated asthma.

小直径套管井泵升级提液工艺配套研究

针对胡庆油田目前4寸套管井泵升级提液配套的问题,研究了4寸套管井提液管柱配套,研制了4寸套管井泵升级提液抽油泵,小直径脱节器及其配套工具。介绍了4寸套管井机采提液配套研究的内容及配套工具的结构、原理及特点。通过现场的试验应用,满足了地层能量充足,且需进一步泵升级提液4寸套管井的生产需求,具有较大的推广前景。