WELL CLEANOUT USING CAUSTIC ALKYL POLYGLYCOSIDE COMPOSITIONS
    21.
    发明申请
    WELL CLEANOUT USING CAUSTIC ALKYL POLYGLYCOSIDE COMPOSITIONS 审中-公开
    使用碱性聚氨基甲酸酯组合物进行清洁

    公开(公告)号:WO1992014031A1

    公开(公告)日:1992-08-20

    申请号:PCT/US1992000570

    申请日:1992-01-23

    CPC classification number: C09K8/601 C09K8/52 E21B37/00 Y10S507/927 Y10S507/929

    Abstract: Oil and gas wells and injection wells are cleaned of oil-based drilling muds, pipe thread compounds, other oil contaminants, cement and contaminants in injection water by a composition comprising fresh water or seawater, one-half to ten percent concentration of an alkyl polyglycoside surfactant and one to ten percent of a caustic agent such as sodium hydroxide, potassium hydroxide or ammonium hydroxide.

    Abstract translation: 石油和天然气井和注入井通过包含淡水或海水的组合物清洗注入水中的油基钻井泥浆,管螺纹化合物,其他油污染物,水泥和污染物,浓度为烷基多糖苷的一半至百分之十 表面活性剂和1至10%的苛性剂如氢氧化钠,氢氧化钾或氢氧化铵。

    HIGH-STABILITY FOAMS FOR LONG-TERM SUPPRESSION OF HYDROCARBON VAPORS
    22.
    发明申请
    HIGH-STABILITY FOAMS FOR LONG-TERM SUPPRESSION OF HYDROCARBON VAPORS 审中-公开
    用于长期抑制烃类蒸汽的高稳定性方法

    公开(公告)号:WO1992004942A1

    公开(公告)日:1992-04-02

    申请号:PCT/US1991006795

    申请日:1991-09-19

    CPC classification number: A62D1/0085

    Abstract: Novel formulations for aqueous foams, which, in the presence of hydrocarbons, can persist for 24 hours or more. The formulations comprise one or more nonionic surfactants, a fluorinated surfactant, a solvent (esp. alcohol(s)), a polymer (esp. polysaccharides, biopolymers or synthetic polymers) and water. The foams are suitable for the suppression of hydrocarbon and polar organic vapors, and are especially useful in tanker loading.

    Abstract translation: 用于水性泡沫的新型制剂,其在烃存在下可以持续24小时或更长时间。 制剂包含一种或多种非离子表面活性剂,氟化表面活性剂,溶剂(特别是醇),聚合物(特别是多糖,生物聚合物或合成聚合物)和水。 泡沫适用于抑制烃类和极性有机蒸气,尤其适用于油罐装载。

    TRANSIENT ELECTROMAGNETIC INSPECTION METHOD AND APPARATUS WITH MOVING SENSORS
    23.
    发明申请
    TRANSIENT ELECTROMAGNETIC INSPECTION METHOD AND APPARATUS WITH MOVING SENSORS 审中-公开
    瞬态电磁检测方法和装置与移动传感器

    公开(公告)号:WO1992002809A1

    公开(公告)日:1992-02-20

    申请号:PCT/US1991004916

    申请日:1991-07-11

    Abstract: There is provided a transient electromagnetic method and apparatus for inspecting objects using moving sensor. The apparatus (13) includes a sensing portion (27) which has a transmitting antenna (29) and at least one receiving antenna thereon (31). The sensing portion (27) is located adjacent to the object which is to be inspected such that the antennas (29, 31) are adjacent to the object. The sensing portion (27) is moved along the object at the same time the transmitting antenna (29) is inducing current in the wall and the receiving antenna (31) is producing a received signal of the induced current diffusion in the wall. Because the antennas (29, 31) are moving during data acquisition, the speed of inspection is increased. The data is then interpreted to determine the thickness of the object.

    APPARATUS AND METHOD FOR DETERMINING THE ABILITY OF AN INDIVIDUAL TO PERFORM A TASK
    25.
    发明申请
    APPARATUS AND METHOD FOR DETERMINING THE ABILITY OF AN INDIVIDUAL TO PERFORM A TASK 审中-公开
    用于确定个人执行任务能力的装置和方法

    公开(公告)号:WO1991010398A1

    公开(公告)日:1991-07-25

    申请号:PCT/US1990007323

    申请日:1990-12-11

    CPC classification number: A61B5/162 A61B5/18

    Abstract: An apparatus and method for testing individuals to determine their capability of conducting predetermined tasks. A base line is generated which is unique to each individual to whom the test is to be presented. The individual's current response to the battery of tests is compared by using an algorithm with the individual's base line to determine impairment of the individual. The algorithm is statistically designed to pass individuals relative to their base line performance level while eliminating all false negatives. When an individual tests positive, the test is repeated one or more times and the results compared using an algorithm which is statistically designed to pass individuals relative to their individual base line performance levels while eliminating all false positives. Such is accomplished by providing a source (10) of images randomly and non-repetitively to a screen (14) for recognition and response by the individual being tested. The responses are recorded in a compiler means (18) and then compared to the previous results of the same individual which are stored in a data base (22) and then tabulated to provide an output signal indicative of the individual's present ability to perform the task in question.

    MICROWAVE APPARATUS AND METHOD FOR MEASURING FLUID MIXTURES
    26.
    发明申请
    MICROWAVE APPARATUS AND METHOD FOR MEASURING FLUID MIXTURES 审中-公开
    用于测量流体混合物的MICROWAVE装置和方法

    公开(公告)号:WO1991000996A1

    公开(公告)日:1991-01-24

    申请号:PCT/US1990003718

    申请日:1990-07-02

    CPC classification number: G01N22/04 G01N22/00 G01N33/2823

    Abstract: Apparatus for measuring the concentration of one material such as water in another material such as crude or refined oil including a coaxial microwave transmission line (14) formed by a conduit for receiving the material and a center conductor (22) which is sheathed with a dielectric covering (27) which is operable to prevent short circuiting of the transmission path. An oscillator circuit (30) is coupled to the transmission line and is driven by a free-running voltage controlled oscillator and a signal receiver monitors the change in frequency caused by impedance pulling of the oscillator due to the change in the dielectric constant of the mixture. Incident and reflected or transmitted power with respect to the measurement section is measured to determine whether an oil-in-water or water-in-oil emulsion is present to verify the concentration of one fluid in the other for a particular operating frequency.

    Abstract translation: 用于测量诸如原油或精制油的另一种材料中的一种材料如水的浓度的装置,包括由用于接纳材料的导管形成的同轴微波传输线(14)和中心导体(22),该中心导体用电介质 覆盖(27),其可操作以防止传输路径的短路。 振荡器电路(30)耦合到传输线并且由自由运行的压控振荡器驱动,并且信号接收器监视由于混合物的介电常数的变化引起的振荡器阻抗拉动引起的频率变化 。 测量相对于测量部分的事件和反射或透射功率,以确定是否存在油包水或油包水乳液,以验证特定工作频率下的另一种流体的浓度。

    PRODUCTION OF HIGH PURITY ALUMINA
    28.
    发明申请
    PRODUCTION OF HIGH PURITY ALUMINA 审中-公开
    生产高纯度氧化铝

    公开(公告)号:WO1985000799A1

    公开(公告)日:1985-02-28

    申请号:PCT/US1984001214

    申请日:1984-08-01

    CPC classification number: C01F7/306 C01F7/46 C01P2006/80

    Abstract: A process for the formation of high purity alumina from Bayer Process alumina trihydrate (gibbsite). The solid hydrated alumina is reacted with concentrated HCl to cause partial or complete conversion to aluminum chloride hexahydrate (ACH). The ACH or mixture of ACH and unreacted hydrated alumina is recovered as a solid and calcined in a single or multistage calcination to high purity alumina. Soda contents in the product anhydrous alumina can be reduced by 98% or greater. Contents of other impurities, such as silica, iron, magnesium, etc., are also markedly reduced. Different degrees of impurity reduction can be obtained by controlling the degree of conversion of the hydrated alumina to ACH and by recycling and treating the acid after solid/liquid separation. The purified products find use in the speciality ceramics field, as catalyst supports, as adsorbents, in electronic components, in prosthetic devices or other applications in which alumina of controlled degrees of purity offers an advantage.

    ALUMINUM PRODUCTION VIA THE CHLORINATION OF ALUMINUM CHLORIDE HEXAHYDRATE (ACH)
    30.
    发明申请
    ALUMINUM PRODUCTION VIA THE CHLORINATION OF ALUMINUM CHLORIDE HEXAHYDRATE (ACH) 审中-公开
    通过氯化铝十六烷酸(ACH)的氯化生产铝

    公开(公告)号:WO1984000534A1

    公开(公告)日:1984-02-16

    申请号:PCT/US1983001051

    申请日:1983-07-13

    CPC classification number: C01F7/58 C25C3/06

    Abstract: An improved method of producing anhydrous aluminum chloride via aluminum chloride hexahydrate. In a preferred embodiment the method is incorporated into a process for producing aluminum from aluminous ores, and particularly from domestic ore sources comprising (1) acid leaching an aluminous ore to produce aluminum chloride hexahydrate (ACH); (2) calcining the ACH to a specific temperature of above about 450oC to produce highly reactive aluminous particles containing high residual chloride and low residual hydrogen levels; (3) reductively chlorinating the calcined ACH at a low temperature to produce anhydrous aluminum chloride suitable for electrolytic reduction; and (4) electrolytically reducing the anhydrous aluminum chloride in a fused salt to produce aluminum metal and chlorine which is recycled to step (3).

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