公开(公告)号：US3753903A

公开(公告)日：1973-08-21

申请号：US3753903D

申请日：1971-04-28

Applicant: UNION OIL CO

Inventor： FISCHER P ,  GALLUS J

IPC: C09K8/24 ,  C09K8/92 ,  C10M3/12 ,  C10M3/22

CPC classification number: C09K8/92 ,  C09K8/24 ,  Y10S507/925

Abstract: A NON-DAMAGING WELL COMPLETION AND WORKOVER FLUID IS DISCLOSED. THE FLUID COMPRISES A DISPERSION OF FINELY DIVIDED SOLID WAX PARTICLES AND FINELY DIVIDED SOLID PARTICLES OF A WATER-INSOLUBLE, ACID-SOLUBLE INORGANIC MATERIAL IN AN AQUEOUS SALT SOLUTION CONTAINING ESPECIALLY SELECTED EMULSIFIERS. THE DENSITY OF THE FLUID IS CONTROLLED BY VARYING THE CONCENTRATION OF DISSOLVED SALTS, AND THE VISCOSITY CAN BE INCREASED BY THE ADDITION OF HYDROXY ETHYL CELLULOSE. A SMALL AMOUNT OF LIQUID HYDROCARBON CAN BE TO IMPROVE THE FLUID LOSS PROPERTIES OF THE FLUID.

公开(公告)号：US3711405A

公开(公告)日：1973-01-16

申请号：US3711405D

申请日：1969-11-19

Applicant: UNION OIL CO

Inventor： PYE D ,  FISCHER P ,  GALLUS J

IPC: C09K8/24 ,  C09K8/62 ,  C10M3/08 ,  E21B43/25

CPC classification number: C09K8/62 ,  C09K8/24 ,  Y10S507/922 ,  Y10S507/925

Abstract: A LOW LOSS WELL TREATING COMPOSITION COMPRISING A DISPERSION OF SOLID WAX OR WAX-POLYMER PARTICLES IN AN AQUEOUS LIQUID CONTAINING A HYDROPHILIC AGENT CONSISTING OF WATER-SOLUBLE SURFACE ACTIVE AGENTS OR WATER-DISPERSIBLE SURFACE ACTIVE AGENTS, AND A LIPOPHILIC AGENT CONSISTING OF OIL-SOLUBLE SURFACE ACTIVE AGENTS, OIL-DISPERSIBLE SURFACE ACTIVE AGENTS AND OLEGINOUS LIQUIDS; AND A PROCESS EMPOLYING THIS COMPOSITION IN WELL DRILLING AND TREATING.

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

Inventor： HOLM L ,  GALLUS J

IPC: C09K8/528 ,  C09K8/536 ,  E21B43/25

CPC classification number: C09K8/536 ,  C09K8/528

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。