METHODS FOR IMPROVING THE SWEEP EFFICIENCY OF GAS INJECTION
    2.
    发明申请
    METHODS FOR IMPROVING THE SWEEP EFFICIENCY OF GAS INJECTION 审中-公开
    改善气体注入效率的方法

    公开(公告)号:US20140262255A1

    公开(公告)日:2014-09-18

    申请号:US14167892

    申请日:2014-01-29

    IPC分类号: E21B43/16

    摘要: A method for recovering oil from a subterranean, hydrocarbon-bearing formation includes at least one injection well and injecting a carrier fluid including a diverting agent into a high permeability pathway within the formation. An activating fluid is injected into the high permeability pathway within the formation, resulting in the precipitation or swelling of the diverting agent. The permeability of the high permeability pathway is decreased within the formation containing the diverting agent to a permeability less than the permeability of the adjacent areas of the formation. The carrier fluid may have a predetermined residence time within the formation prior to injecting an activating fluid; the step of injecting a carrier fluid comprising a diverting agent and injecting an activating fluid may be repeated. A mineralization fluid may be injected that is oversaturated or becomes oversaturated upon interacting with the acid gas that causes mineral precipitation to seal off high-permeability pathways.

    摘要翻译: 从地下含烃地层中回收油的方法包括至少一个注入井,并将包含转移剂的载体流体注入地层内的高渗透性路径。 激活流体被注入到地层内的高渗透性通路中,导致转移剂的沉淀或溶胀。 在含有转向剂的地层中,高渗透性通道的渗透性降低到渗透率小于地层相邻区域的渗透率。 载体流体可以在注入活化流体之前在地层内具有预定的停留时间; 可以重复注入包含转移剂并注射活化流体的载体流体的步骤。 可以注入矿化流体,其过饱和或与酸性气体相互作用而变得过饱和,导致矿物沉淀以密封高渗透性通路。

    Chemical structural and compositional yields model for predicting hydrocarbon thermolysis products
    3.
    发明授权
    Chemical structural and compositional yields model for predicting hydrocarbon thermolysis products 有权
    用于预测碳氢化合物热解产物的化学结构和组成产量模型

    公开(公告)号:US07344889B2

    公开(公告)日:2008-03-18

    申请号:US10426356

    申请日:2003-04-30

    IPC分类号: G01N33/24

    摘要: A method of predicting the composition of hydrocarbon products of a complex carbonaceous material when exposed to specific time and temperature conditions is disclosed. In one embodiment, the material is characterized to obtain elemental, chemical and structural parameters. A representative chemical structure of the material is constructed based on the characterization information. The representative chemical structure is then stochastically expanded to a molecular ensemble chemical structural model that includes heteroatoms. The chemical structural model is coupled to a compositional yield model and the composition of the material products is determined using kinetic modeling. Methods are provided of constructing a chemical structural model of complex carbonaceous material, of coupling a molecular ensemble of chemical structures to a thermal chemical mechanism, of updating an ensemble of chemical structures during the kinetic modeling to reflect chemical reaction products and of eliminating molecules from the system.

    摘要翻译: 公开了当暴露于特定的时间和温度条件时预测复合碳质材料的烃产物的组成的方法。 在一个实施方案中,该材料的特征在于获得元素,化学和结构参数。 基于特征信息构建材料的代表性化学结构。 然后将代表性的化学结构随机扩展到包括杂原子的分子整体化学结构模型。 化学结构模型与组合产量模型耦合,并且使用动力学模型确定材料产物的组成。 提供了构建复杂碳质材料的化学结构模型的方法,将化学结构的分子组合耦合到热化学机制,在动力学建模期间更新化学结构的集合以反映化学反应产物并从中消除分子 系统。