Drilling fluid
    21.
    发明授权
    Drilling fluid 失效
    钻井液

    公开(公告)号:US3920560A

    公开(公告)日:1975-11-18

    申请号:US48359974

    申请日:1974-06-27

    Applicant: TEXACO INC

    CPC classification number: C09K8/22 Y10S516/03

    Abstract: An aqueous drilling fluid dispersant and a method of drilling wells using as the drilling fluid dispersant a water soluble salt of a sulfonated, dialkyl substituted benzodioxole of prescribed type.

    Abstract translation: 含水钻井液分散剂和使用作为钻井液分散剂的钻井的方法,其是规定类型的磺化二烷基取代的苯并间二氧杂环戊烯的水溶性盐。

    Production of secondary alkyl primary amines
    22.
    发明授权
    Production of secondary alkyl primary amines 失效
    仲烷基伯胺的生产

    公开(公告)号:US3917705A

    公开(公告)日:1975-11-04

    申请号:US42855373

    申请日:1973-12-26

    Applicant: TEXACO INC

    CPC classification number: B01J27/22

    Abstract: A process for selectively converting n-paraffins to secondary alkyl primary amines where byproduct formation is substantially reduced which comprises contacting the n-paraffin in a plurality of reaction zones with a nitrating agent, removing gaseous reaction products and water from the liquid products of each of the reaction zones and introducing nitrating agent along with liquid product from the preceding zone into each succeeding reaction zone, thereby effecting an overall conversion to nitroparaffin not exceeding 25 weight percent of the n-paraffin, and thereafter hydrogenating the nitroparaffin to the amine.

    Abstract translation: 选择性地将正链烷烃转化为仲烷基伯胺的方法,其中副产物形成基本上减少,其包括使多个反应区中的正链烷烃与硝化剂接触,从每个反应产物和液体产物中除去气态反应产物和水 反应区,并将硝化剂与前一区域的液体产物一起引入每个后续反应区,从而总体转化为不超过正己烷的25重量%的硝基石蜡,然后将硝基石蜡氢化为胺。

    Nitroalkyl nitrates
    25.
    发明授权
    Nitroalkyl nitrates 失效
    硝基烷基硝酸盐

    公开(公告)号:US3910981A

    公开(公告)日:1975-10-07

    申请号:US43030674

    申请日:1974-01-02

    Applicant: TEXACO INC

    Abstract: Nitroalkyl nitrate and peroxynitrates characterized by the formula:

    where R and R1 are hydrogen or alkyl of from 1 to 10 carbons, where X is R2O-CN, Cl, phenyl, -ONO2,

    where R2 is alkyl of from 1 to 10 carbons or phenyl and R3 is hydrogen, phenyl or alkyl of from 1 to 10 carbons, and where Y is -OONO2 or -ONO2, said nitroalkyl nitrates being prepared by first contacting a substituted alkene of the formula:

    where R, R1 and X are as heretofore defined with a mixture of dinitrogen tetroxide and oxygen to form substituted nitroalkyl peroxynitrate of the formula:

    D R A W I N G
    where R, R1 and X are as heretofore defined and second contacting said peroxynitrate with a reducing agent to form said substituted nitroalkyl nitrate, the first and second contacting being conducted in the presence of inert liquid. The nitroalkyl nitrate final products of the invention are useful as fuel additives to increase power output of petroleum distillates such as gasoline and kerosene. Further, they are useful as intermediates in the preparation of surfactants, fuel and lubricant additives, insecticides, fungicides (e.g. controlling early blight in bean plants), pharmaceuticals and polymers.

    Abstract translation: 硝基硝基硝酸盐和过氧硝酸盐,其特征在于下式:Y | R-CH-C-CH2-NO2 || XR1其中R和R1是氢或1至10个碳的烷基,其中X是R2O + 13,-CN,Cl, 苯基,-ONO 2,O并原-OC-CF 3,-OC-R 3,其中R 2是1至10个碳的烷基或苯基且R 3是氢,苯基或1至10个碳的烷基,其中Y是 - OONO 2或-ONO 2,所述硝基烷基硝酸盐通过首先使下式的取代烯与R-CH-C = CH 2 || XR1接触而制备,其中R,R 1和X如上文所定义,与四氧化二氮和氧气混合形成 取代的硝基烷基过氧化硝酸盐,其具有下式:OONO 2 | R-CH-C-CH 2 -NO 2 || XR1其中R,R 1和X如前所定义,并且使所述过硝酸盐与还原剂接触以形成所述取代的硝基烷基硝酸盐,第一和 第二次接触在惰性液体存在下进行。 本发明硝酸烷基硝酸盐最终产品可用作燃料添加剂以增加石油馏出物如汽油和煤油的功率输出。 此外,它们可用作制备表面活性剂,燃料和润滑剂添加剂,杀虫剂,杀真菌剂(例如控制豆类植物中的早疫病),药物和聚合物的中间体。

    Lube oil dispersant of improved odor and antioxidant properties
    26.
    发明授权
    Lube oil dispersant of improved odor and antioxidant properties 失效
    润滑油分散剂具有改善的气味和抗氧化性能

    公开(公告)号:US3910844A

    公开(公告)日:1975-10-07

    申请号:US33091473

    申请日:1973-02-09

    Applicant: TEXACO INC

    Abstract: In the method of preparing sulfurized, alkoxylated, inorganic phosphorus acid free, steam hydrolyzed polyalkene-P2S5 reaction product useful as a detergent-dispersant in lubricating oil compositions of improved antioxidant and odor properties comprising contacting polyalkene and P2S5 in the presence of a catalytic amount of sulfur to form the polyalkene-P2S5 reaction product, contacting the resultant polyalkene-P2S5 reaction product with steam to form an inorganic phosphorus acid containing hydrolyzed polyalkene-P2S5 reaction product, removing inorganic phosphorus acid from the hydrolyzed polyalkene-P2S5 reaction product, contacting the inorganic acid free, hydrolyzed polyalkene-P2S5 reaction product with alkylene oxide, the improvement which comprises the step selected from the group consisting of (1) contacting said inorganic acid free, steam hydrolyzed polyalkene-P2S5 intermediate product with added sulfur, and (2) contacting the alkoxylated, inorganic phosphorus acid free, steam hydrolyzed polyalkene-P2S5 reaction product with added sulfur. The invention is also directed to the resultant sulfurized alkoxylated product and lubricant compositions thereof.

    Abstract translation: 在制备硫化,烷氧基化,无机磷酸无水的蒸汽水解聚烯烃-P2S5反应产物的方法中,可用作改进的抗氧化和气味性质的润滑油组合物中的洗涤剂分散剂,包括使聚烯烃和P2S5在催化量 硫以形成聚烯烃-P2S5反应产物,使得到的聚烯烃-P2S5反应产物与蒸汽接触,形成含有水解聚烯烃-P2S5反应产物的无机磷酸,从水解的聚烯烃-P2S5反应产物中除去无机磷酸, 无水的聚烯烃-P2S5反应产物与环氧烷反应,其改进包括选自(1)使所述无机酸,水解的聚烯烃-P2S5中间产物与加入的硫接触的步骤,和(2)接触 烷氧基化,无机磷无酸,蒸汽 加入硫酸的聚烯烃-P2S5反应产物。 本发明还涉及所得的硫化烷氧基化产物及其润滑剂组合物。

    Method for removing elemental sulfur in sour gas wells
    27.
    发明授权
    Method for removing elemental sulfur in sour gas wells 失效
    酸性气井中元素硫的去除方法

    公开(公告)号:US3909422A

    公开(公告)日:1975-09-30

    申请号:US31595072

    申请日:1972-12-18

    Applicant: TEXACO INC

    CPC classification number: C09K8/532 Y10S507/932

    Abstract: A process for producing sour gas wells whereby attendant problems due to sulfur deposition within the producing formation, well and surface equipment are prevented or alleviated by contacting the formation, well and surface equipment with a chemical composition whose aqueous solution will solubilize the sulfur by primary chemical reaction and containing a wetting agent to facilitate and accelerate the sulfur dissolution and removal.

    Abstract translation: 一种生产酸气井的方法,其中通过使地层,井和地面设备与其水溶液将主要化学物质溶解硫的化学组合物接触,从而防止或减轻在生产地层,井和地面设备内由于硫沉积引起的附带问题 反应并含有润湿剂以促进和加速硫的溶解和去除。

    Methods for generating and shaping a seismic energy pulse
    28.
    发明授权
    Methods for generating and shaping a seismic energy pulse 失效
    地震能量脉冲的产生和成形方法

    公开(公告)号:US3908789A

    公开(公告)日:1975-09-30

    申请号:US41110273

    申请日:1973-10-30

    Applicant: TEXACO INC

    CPC classification number: G01V1/13

    Abstract: In seismic delineation of sedimentary section below the surface of a seismic energy propagation medium, methods and articles for carrying out the methods are disclosed. A basic method for generating and shaping a seismic energy pulse comprises (1) generating a first energy pulse downwardly through the shortest distance to a point at the lower end of a vertical straight explosive material for forming a compressional forward portion of the seismic energy pulse, and (2) generating a second energy pulse later to form a rarefactional aft portion of the seismic energy pulse. By varying the length of the explosive material the lengths of the forward and aft portions are varied for controlling the shape of the seismic energy pulse, and by varying the position of the point of ignition of the linear explosive material, additional shaping of the seismic energy pulse results. A basic article for carrying out the above method comprises a vertical straight explosive material, as a straight piece of ''''Primacord,'''' suspended at a desired predetermined depth, cut to a predetermined length, and detonated by a blasting cap at a predetermined position from the upper end to the lower end for producing a seismic energy pulse of the desired shape, a very thin elongated shape being preferable for attenuation of both the secondary bubble amplitude and time duration.

    Abstract translation: 在地震能量传播介质表面以下的沉积段的地震描绘中,公开了实施方法的方法和制品。 用于产生和成形地震能量脉冲的基本方法包括:(1)产生第一能量脉冲,该第一能量脉冲向下通过垂直直爆炸材料的下端的最短距离,以形成地震能量脉冲的压缩前部, 和(2)稍后产生第二能量脉冲以形成地震能量脉冲的稀疏后部。 通过改变爆炸材料的长度,改变前部和后部的长度以控制地震能量脉冲的形状,并且通过改变线性炸药材料的点火点的位置,对地震能量进行额外的成形 脉搏结果。 用于实施上述方法的基本制品包括垂直直爆炸材料,作为垂直的“Primacord”片,悬挂在期望的预定深度,切割成预定长度,并且在距离该预定位置的预定位置处由喷砂帽引爆 用于产生所需形状的地震能量脉冲的上端到下端,非常细长的形状对于二次气泡振幅和持续时间的衰减是优选的。

    Fixed marine platform with dispersed base
    29.
    发明授权
    Fixed marine platform with dispersed base 失效
    固定海洋平台分散基地

    公开(公告)号:US3906734A

    公开(公告)日:1975-09-23

    申请号:US39080573

    申请日:1973-08-23

    Applicant: TEXACO INC

    Abstract: A fixedly positioned marine platform held at the ocean floor by piles and the like, having a relatively flat concrete apron disposed about the platform lower end and also supported on the ocean floor. The apron functions to stabilize the platform against lateral forces caused by water and wave motion, and also avoids scouring which would otherwise occur about the platform legs and piles due to movement of water along the ocean floor. The apron further lowers the center of gravity of the structure and improves its resistance to vibrations and resonance effects due to wave motion.

    Abstract translation: 通过桩等固定在海底的海洋平台,具有围绕平台下端布置并且还支撑在海底上的相对扁平的混凝土围裙。 围裙的作用是稳定平台,防止由水和波浪运动引起的横向力,并且还避免了由于水沿着海底的移动而平台腿和桩所造成的冲刷。 围裙进一步降低了结构的重心,并提高了其由于波浪运动引起的振动和共振效应的抵抗力。

    Method for recovering viscous petroleum

    公开(公告)号:US3903967A

    公开(公告)日:1975-09-09

    申请号:US50802974

    申请日:1974-09-23

    Applicant: TEXACO INC

    CPC classification number: E21B43/24 E21B43/162

    Abstract: When supplemental oil recovery methods such as steam flooding are applied to viscous oil containing formations such as tar sand deposits, poor vertical conformants frequently results, particularly when the oil formation contains one or more zones having a permeability substantially less than other zones in the formation. Recovery efficiency is improved if the injection well is completed so as to establish separate communication means between the surface and each of the zones of different permeability. After injection of a thermal recovery fluid such as steam into the more permeable layer is initiated, injection of a hydrocarbon solvent, either gaseous or liquid, is initiated by the separate communication means into the less permeable zone, and from about .05 to about .5 pore volumes of solvent material is introduced into the less permeable zone. This is displaced with gas such as natural gas or low molecular weight gaseous hydrocarbons, and then steam injection into the less permeable zone will be maintained at a value less than the injection pressure into the more permeable zone for a period until the desired receptivity in the lower permeability zone has been obtained, after which the injection pressure in the two zones is essentially equalized.

Patent Agency Ranking