Surfactant oil recovery process for use in formations containing high concentrations of polyvalent ions such as calcium or magnesium
    1.
    发明授权
    Surfactant oil recovery process for use in formations containing high concentrations of polyvalent ions such as calcium or magnesium 失效
    含有高浓度浓度离子(如钙或镁)的表面活性剂油回收方法

    公开(公告)号:US3799264A

    公开(公告)日:1974-03-26

    申请号:US31486872

    申请日:1972-12-13

    Applicant: TEXACO INC

    CPC classification number: E21B43/20 C09K8/584

    Abstract: A surfactant composition usable in the presence of from about 500 to about 5,000 parts per million polyvalent ion concentrations, such as calcium and/or magnesium, comprising a sulfated aliphatic anionic surfactant such as sodium tridecyl sulfate, a water soluble guanidine salt such as guanidine hydrochloride, and a nonionic surfactant such as polyethoxylated aliphatic alcohol.

    Abstract translation: 在约500至约5,000ppm的多价离子浓度存在下可使用的表面活性剂组合物,例如钙和/或镁,其包含硫酸化脂族阴离子表面活性剂如十三烷基硫酸钠,水溶性胍盐如盐酸胍 ,和非离子表面活性剂如聚乙氧基化脂族醇。

    Tar sand recovery method
    2.
    发明授权
    Tar sand recovery method 失效
    TAR SAND RECOVERY方法

    公开(公告)号:US3811506A

    公开(公告)日:1974-05-21

    申请号:US33139173

    申请日:1973-02-12

    Applicant: TEXACO INC

    Inventor: CARLIN J

    CPC classification number: C09K8/58 E21B43/16

    Abstract: Bitumen may be efficiently and economically extracted from tar sand deposits in situ by imbibition flooding. The imbibition flooding is performed in two general steps. First, the tar sand deposits are contacted with a bitumen solvent followed by a soak period to allow imbibition of the solvent. Next, the tar sands are contacted with an aqueous fluid followed by a soak period to allow imbibition. The freed bitumen is then produced by conventional means.

    Abstract translation: 沥青可以通过吸水淹没在现场从焦油砂沉积中有效和经济地提取。 吸入淹水是在两个一般步骤中进行的。 首先,沥青砂沉积物与沥青溶剂接触,然后浸泡期以允许溶剂的吸收。 接下来,焦油砂与水性液体接触,然后浸泡期以允许吸收。 然后通过常规手段生产释放的沥青。

    Viscous petroleum recovery process
    3.
    发明授权
    Viscous petroleum recovery process 失效
    VISCOUS石油回收工艺

    公开(公告)号:US3854531A

    公开(公告)日:1974-12-17

    申请号:US33597973

    申请日:1973-02-26

    Applicant: TEXACO INC

    Inventor: CARLIN J

    CPC classification number: E21B43/16 C09K8/592 E21B43/20

    Abstract: A method for recovering heavy oils and tar sand oils which involves first improving the reservoir permeability without fracturing the reservoir and subsequently flooding the reservoir with hot water or steam. The permeability is improved by establishing some permeability using water injection followed by flooding with an aqueous fluid containing chemical additives which will spontaneously emulsify the oil.

    Abstract translation: 一种用于回收重油和焦油砂油的方法,其涉及首先提高储层渗透性而不破坏储层并随后用热水或蒸汽淹没储层。 通过使用水注入建立一些渗透性,然后用含有将自动乳化油的化学添加剂的含水流体淹水来改善渗透性。

    Tertiary recovery operation
    4.
    发明授权
    Tertiary recovery operation 失效
    临时恢复操作

    公开(公告)号:US3834461A

    公开(公告)日:1974-09-10

    申请号:US31758172

    申请日:1972-12-22

    Applicant: TEXACO INC

    Inventor: CARLIN J ALLEN J

    CPC classification number: E21B43/30 E21B43/18

    Abstract: At the conclusion of a secondary recovery operation after breakthrough of the driving fluid at the production wells, additional injection wells are located between the original injection well and the production well(s), this region usually having a high oil saturation after the drive.

    Abstract translation: 在生产井的驱动流体突破后的二次恢复操作结束时,在原始注入井和生产井之间设置另外的注入井,该区域在驱动之后通常具有高的油饱和度。

    Surfactant oil recovery process
    5.
    发明授权
    Surfactant oil recovery process 失效
    表面活性剂油回收方法

    公开(公告)号:US3796266A

    公开(公告)日:1974-03-12

    申请号:US3796266D

    申请日:1972-12-13

    Applicant: TEXACO INC

    CPC classification number: E21B43/20 C09K8/584 Y10S507/936

    Abstract: An aqueous solution comprising an alkalinity agent such as sodium hydroxide, a water soluble guanidine salt such as guanidine hydrochloride and an anionic surfactant such as an aliphatic sulfate, specifically dodecyl sulfate or cetyl sulfate, or a water soluble salt of an unsaturated aliphatic monobasic carboxylic acid, such as sodium oleate, is injected into a subterranean petroleum containing formation, followed by the injection of water to displace a surfactant-guanidine solution through the formation. A plurality of benefits result from the use of this combination, including increased injection solution viscosity for mobility ratio improvement, inhibition of clay swelling which causes formation permeability damage, and improved salt tolerance of the surfactant solution so that surfactantemulsion flooding may be carried out in subterranean petroleum containing formations whose formation water salinity is as high as 4 percent.

    Abstract translation: 包含碱性试剂如氢氧化钠的水溶液,盐酸胍等水溶性胍盐和脂肪族硫酸盐,特别是十二烷基硫酸盐或十六烷基硫酸盐等阴离子表面活性剂,或不饱和脂肪族一元羧酸的水溶性盐 (如油酸钠)注入地下含石油地层,然后注入水以通过地层移置表面活性剂 - 胍溶液。 使用这种组合可产生多种益处,包括提高流动比改善的注射溶液粘度,导致形成渗透性损伤的粘土溶胀的抑制,以及表面活性剂溶液的耐盐性改善,从而可以进行表面活性剂 - 乳液浸渍 在含地层含油层的地层水盐度高达4%。

    Method for recovery of hydrocarbons utilizing steam injection
    6.
    发明授权
    Method for recovery of hydrocarbons utilizing steam injection 失效
    采用蒸汽注射法回收烃类的方法

    公开(公告)号:US3732926A

    公开(公告)日:1973-05-15

    申请号:US3732926D

    申请日:1971-06-01

    Applicant: TEXACO INC

    CPC classification number: E21B43/24 C09K8/592

    Abstract: A method of recovering hydrocarbons from a subterranean hydrocarbon-bearing formation wherein a mixture of steam and a minor amount of an interfacial tension reducer, such as quinoline, etc. is introduced into the formation and oil displaced through the formation is recovered through a production well. Preferably, the formation is heated prior to the introduction of the steam-interfacial tension reducer mixture.

    Abstract translation: 从地下含烃地层中回收碳氢化合物的方法,其中将蒸汽和少量界面张力减少剂(例如喹啉等)的混合物引入地层,通过地层排出的油被回收通过生产井 。 优选地,在引入蒸汽界面张力减小剂混合物之前,将地层加热。

Patent Agency Ranking