FIELD: oil and gas production.
SUBSTANCE: procedure for treatment of bottomhole zone of terrigenous reservoir consists in pumping solution containing, wt %: hydrochloric acid 10.5-12.7, formic acid 12.2-15.8, ascorbic acid 0.5, water 71.0-76.8 with process cure during 17-22 h, in development of well along production string, in pumping fluorine-hydrogen solution consisting of mixture of hydrochloric and etching acids, in process cure during 4-6 h, and in well completion to estimated yield.
EFFECT: increased depth of penetration of acid solution into reservoir.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD TO STIMULATE HYDROCARBON INFLOW FROM WELL CHARACTERIZED BY ABNORMALLY HIGH RESERVOIR PRESSURE | 2006 |
|
RU2316646C2 |
| DEVELOPMENT METHOD OF BOTTOM-HOLE ZONE OF TERRIGENOUS OIL FORMATION | 2011 |
|
RU2475638C1 |
| TREATMENT METHOD OF BOTTOMHOLE FORMATION ZONE WITH TERRIGENOUS TYPE OF RESERVOIR | 2019 |
|
RU2724833C1 |
| BOTTOMHOLE FORMATION ZONE TREATMENT COMPOSITION | 2004 |
|
RU2276724C1 |
| METHOD OF MULTI-STAGE TREATMENT OF INJECTION WELL BOTTOMHOLE ZONE IN TERRIGENOUS AND CARBONATE FORMATIONS | 2017 |
|
RU2642738C1 |
| METHOD OF TREATING BOTTOM ZONE OF OIL FORMATION | 1998 |
|
RU2140531C1 |
| BOTTOM WATER ISOLATION METHOD | 2013 |
|
RU2569941C2 |
| METHOD OF SELECTIVE TREATMENT OF BOTTOM-HOLE FORMATION ZONE | 2018 |
|
RU2700851C1 |
| METHOD FOR EFFECTING FACE-ADJACENT WELL AREA | 2004 |
|
RU2252311C1 |
| METHOD OF FILTER CAKE REMOVAL OF BOTTOM HOLE AREA OF LOW-PERMEABLE LOW-TEMPERATURE TERRIGENOUS RESERVOIR | 2014 |
|
RU2555173C1 |
