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公开(公告)号：US3769209A
公开(公告)日：1973-10-30
申请号：US3769209D
申请日：1971-04-12
Applicant: UNION OIL CO
Inventor： HOLM L
CPC classification number: C09K8/584 , Y10S507/938
Abstract: AN ADDITIVE CONCENTRATE FOR THE FORMULATION OF SOLUBLE OILS COMPRISING AN ADMIXTURE OF SURFACE ACTIVE ALKYL ARYL SULFONATES AND SECONDARY BUTYL ALCOHOL IN THE PROPORTION OF ABOUT 1 TO 12 PARTS BY VOLUME OF ALKYL ARYL SULFONATES PER PART OF SECONDARY BUTYL ALCOHOL. T HE SURFACE ACTIVE SULFONATE CAN BE A MIXTURE OF PREFERENTIALLY OIL-SOLUBLE AND PREFERENTIALLY WATER-SOLUBLE ALKYL ARYL SULFONATES.
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公开(公告)号：US3830301A
公开(公告)日：1974-08-20
申请号：US30712872
申请日：1972-11-16
Applicant: UNION OIL CO
Inventor： HOLM L
CPC classification number: E21B43/16
Abstract: A miscible flooding process for the recovery of oil from subterranean reservoirs in which a methane-enriched soluble oil is injected into the reservoir through one or more injection wells at a pressure above the bubble point pressure of the composition, and thereafter an aqueous flooding agent is injected to drive the soluble oil towards a spaced production well. The soluble oil comprises an admixture of a liquid hydrocarbon, surface active organic sulfonates, and a stabilizing agent; and is enriched by the addition of methane in an amount not exceeding the saturation composition at reservoir conditions of temperature and pressure. The soluble oil can be substantially anhydrous, or it can contain water present as a water-in-oil microemulsion.
Abstract translation: 一种用于从地下储层回收油的混溶淹没方法，其中通过一个或多个注入井在高于组合物泡泡压力的压力下将甲烷富集的可溶性油注入储层中，此后水驱剂为 注射以将可溶性油驱动到间隔开的生产井。 可溶性油包括液体烃，表面活性有机磺酸盐和稳定剂的混合物; 并且通过在储存温度和压力条件下不超过饱和组成的量加入甲烷来富集。 可溶性油可以是基本上无水的，或者它可以含有作为油包水微乳液存在的水。
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公开(公告)号：US3756319A
公开(公告)日：1973-09-04
申请号：US3756319D
申请日：1972-02-28
Applicant: UNION OIL CO
Abstract: A method for stimulating the production of oil from a well completed in a permeable, oil-bearing formation comprising the steps of (1) contacting the well with a substantially anhydrous soluble oil under conditions that the soluble oil does not enter the formation in any substantial amount, (2) removing the previously placed soluble oil from the well, (3) next injecting a small quantity of soluble oil through the well and into the formation, (4) displacing the soluble oil into the formation with an overflush of oil, and (5) recovering oil from the well. The soluble oil is preferably especially compounded to exhibit a high solvency for the specific organic deposits found in the well. If desired, the well can be treated with acid prior to commencing the recovery operation to remove inorganic deposits and to increase the permeability of the formation. Also, the formation immediately surrounding the well can be treated with scale inhibiting agents, or with polymerizable resins to consolidate unconsolidated or loosely consolidated sands prior to returning the well to production.
Abstract translation: 一种用于刺激从可渗透的含油地层中完成的油的生产的方法，包括以下步骤：（1）在可溶性油不以任何实质的方式进入地层的条件下将井与基本上无水的可溶性油接触 数量，（2）从井中除去以前放置的可溶性油，（3）接下来通过井注入少量可溶性油，并进入地层，（4）用油过滤将可溶性油置换成地层， 和（5）从井中回收油。 可溶性油优选特别复合以对井中发现的特定有机沉积物表现出高溶解性。 如果需要，可以在开始回收操作之前用酸处理井以除去无机沉积物并增加地层的渗透性。 此外，立即围绕井的形成可以用垢抑制剂或可聚合树脂处理，以在将井返回到生产之前固结未固结或松散固结的砂。
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