• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Society of Petroleum Engineers international symposium on oilfield scale >Using Synchrotron Radiation Wide-Angle X-Ray Scattering (WAXS) To Study the Inhibition Effect of DiEthyleneTriaminePenta (MethylenePhosphonic Acid) (DETPMP) on CaCO3 Scale Formation
【24h】

Using Synchrotron Radiation Wide-Angle X-Ray Scattering (WAXS) To Study the Inhibition Effect of DiEthyleneTriaminePenta (MethylenePhosphonic Acid) (DETPMP) on CaCO3 Scale Formation

机译：使用同步辐射广角X射线散射（蜡）研究二亚乙基四胺（甲基膦酸）（甲基膦酸）（DETPMP）对CaCO3刻度形成的抑制作用

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The formation of calcium carbonate mineral scale is a persistent and expensive problem in oil and gas production. Scaling of metallic or insulating walls in contact with hard water may cause unscheduled equipment shutdown and loss of production. The aim of this paper is to further the understanding of scale formation and inhibition by in-situ probing of crystal growth by synchrotron radiation Wide Angle X-Ray Scattering (WAXS) in the absence and presence of diethylenetriaminepenta (methylenephosphonic acid) (DETPMP) scale inhibitor at elevated temperature and high pressure. This novel technique enables in-situ study of mineral scale formation and inhibition and as such, information on the nucleation and growth processes is accessible. This technique studies bulk precipitation and surface deposition in the same system and has great benefit to understand an industrial scaling system. It offers an exciting prospect for the study of scaling. It has been shown that the nucleation and growth of various calcareous polymorphs and their individual crystal planes can be followed in real-time and from this the following conclusions are reached. * The process of scale deposited on the surface can be divided into an unstable phase and a stable phase. The initial phase of crystallization of calcium carbonate is characterized by instability with individual planes from various vaterite and aragonite polymorphs emerging and subsequently disappearing under the hydrodynamic conditions. After the initial unstable phase, various calcium carbonate crystal planes adhere on the surface and then grow on the surface. * DETPMP has a profound effect on the induction time of the surface deposit. It inhibits scale crystal adhesion onto the surface, although the bulk precipitate is observed in the scaling system. It displays different inhibition mechanisms for bulk precipitation and surface deposition inhibition. * DETPMP inhibits surface deposition. It suppresses calcite formation and results in the least stable vaterite crystal formation. This paper will discuss how surface scale evolves in the absence and presence of the inhibitor – exploring the power of the synchrotron in-situ methodology.
机译：碳酸钙矿物规模的形成是油气生产中持续和昂贵的问题。与硬水接触的金属或绝缘壁的缩放可能导致未安排的设备关闭和生产损失。本文的目的是进一步了解通过同步和存在的二亚乙基四胺（甲基膦酸）（DETPMP）规模的情况下通过同步和存在的晶体生长的晶体生长的晶体生长的规模形成和抑制的理解升高温度和高压抑制剂。这种新技术使得原位研究矿物质尺度形成和抑制，因此可以获得有关核切割和生长过程的信息。该技术在同一系统中散装沉淀和表面沉积，并且有利于理解工业缩放系统。它为缩放的研究提供了令人兴奋的前景。已经证明，各种钙质多晶型物的成核和生长可以实时，从而达到以下结论。 *沉积在表面上的规模过程可以分为不稳定的相位和稳定的相位。碳酸钙结晶的初始阶段的特征在于，通过来自各种Vaterite的单个平面和各种飞机，在流体动力学条件下出现并随后消失。在初始不稳定相之后，各种碳酸钙晶体平面粘附在表面上，然后在表面上生长。 * DETPMP对表面沉积物的诱导时间有深远的影响。抑制在表面上的尺度晶体粘附，尽管在缩放系统中观察到体积沉淀物。它显示出散装沉淀和表面沉积抑制的不同抑制机制。 * DETPMP抑制表面沉积。它抑制了方解石的形成并导致最低稳定的Vaterite晶体形成。本文将讨论如何在抑制剂的缺失和存在方面演变的如何发展 - 探索同步rotron原位方法的力量。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号