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    • 8. 发明申请
    • TREATMENT OF OIL AND OIL-CONTAINING FORMULATIONS
    • 含油和含油配方的处理
    • US20140332446A1
    • 2014-11-13
    • US14240182
    • 2012-08-20
    • Philip FletcherJeffrey ForsythCory Jaska
    • Philip FletcherJeffrey ForsythCory Jaska
    • C10G33/04
    • C10G33/04B01D17/047E21B21/068E21B43/34
    • There is disclosed a method of separating a mixture (e.g. dispersion) of oil and water into oil-rich and water-rich phases, the method comprising the steps: (i) selecting a mixture which comprises oil recovered from a subterranean formation and a treatment formulation, wherein said treatment formulation was added to the oil in order to facilitate its recovery and/or mobility, wherein said treatment formulation has an Interfacial Tension (IFT), measured against a sample of said oil in the range 2 to 20 mN/m; (ii) directing said mixture to a separation means; and (iii) in the absence of a chemical demulsifier, heating the mixture until separation is effected at least partially under gravity. Preferably the IFT is in the range 9 to 12 mN/m. The mixture of oil and water may be formed by treating oil in a subterranean formation.
    • 公开了将油和水的混合物(例如分散体)分离成富油和富水相的方法,该方法包括以下步骤:(i)选择包含从地层回收的油和处理的混合物 制剂,其中将所述处理制剂加入到油中以促进其回收和/或迁移性,其中所述处理制剂具有界面张力(IFT),其对所述油的样品测量范围为2至20mN / m ; (ii)将所述混合物引导至分离装置; 和(iii)在没有化学破乳剂的情况下,加热混合物直至至少部分地在重力下进行分离。 优选地,IFT在9至12mN / m的范围内。 油和水的混合物可以通过处理地层中的油而形成。
    • 9. 发明授权
    • Method for the determination of the ionic content of drilling mud
    • 用于确定钻井泥浆的离子含量的方法
    • US5140527A
    • 1992-08-18
    • US446895
    • 1989-12-06
    • Timothy JonesTrevor HughesPhilip Fletcher
    • Timothy JonesTrevor HughesPhilip Fletcher
    • E21B21/08E21B49/00G01N30/02
    • E21B49/005E21B21/08G01N30/02
    • In the rotary drilling of oil wells a drilling mud is used both to transport the cuttings up to the surface and to impose an hydrostatic pressure on the walls of the borehole. For these functions the mud must for example have an acceptable viscosity and density. It is therefore important to monitor the characteristics of the mud, and to keep them within certain limits. Only recently, however, has drilling practice recognized the importance of monitoring the mud's ionic composition. The various techniques proposed involve separation of the mud into liquid and solid portions, and analysis of these. Though they have proven useful, yet there are a number of problems. For example, the separation has not always been easy, and the available techniques often may not satisfactorily remove the fines. The invention suggests that these two problems, at least, can be overcome by the relatively simple expedient of first acidifying the mud sample, for acidification both causes the mud particles to flocculate, and so be more easily separated off, and causes the active fines to dissolve. In a preferred embodiment hydrobromic acid is employed, together with tetramethylammonium bromide (a displacement agent enabling the mud solid's Cationic Exchange Capacity to be measured), the separation is by filtration, and the analysis is by ion chromatography--and the results are fed into a computer model that then calculates the original mud components.