FIELD: underground liquid and gas reservoir building in soluble impermeable rock containing alternating soluble and insoluble seams.
SUBSTANCE: method involves exposing seam roof and bottom along with creating workings by supplying solvent along one coaxial string and removing brine via another string; applying pressure of overlaying liquid column to exposed seam with the use of isolation partition in annular seam space; creating pressure drop enough for insoluble rock seam breaking in well by injecting liquid in well; forming waterless protective layer under seam bottom after seam roof and bottom exposing by supplying unloading material under seam bottom, wherein the unloading material has density lesser than water density. Waterless protective layer thickness exceeds 0.2 of insoluble rock seam thickness. Isolation partition is made as elastic shell containing filler.
EFFECT: increased efficiency of insoluble rock seam treatment.
7 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF CAVING THE INSOLUBLE ROCK PARTING IN CONSTRUCTION OF UNDERGROUND RESERVOIR IN SOLUBLE SALTS THROUGH BOREHOLE | 1998 |
|
RU2166081C2 |
| METHOD FOR CONSTRUCTING DOUBLE-DECK UNDERGROUND RESERVOIR IN ROCK SALT LAYER | 2023 |
|
RU2812756C1 |
| METHOD FOR EXTRACTING SALTS FROM SALT DEPOSITS | 2002 |
|
RU2229591C1 |
| METHOD FOR UNDERGROUND DISSOLUTION OF SALT DEPOSITS | 2003 |
|
RU2236578C1 |
| METHOD OF FORMING RESERVOIRS IN ROCK SALT FORMATIONS AND DEVICE TO THIS END | 2011 |
|
RU2477702C2 |
| METHOD OF BREAKING DOWN ROCK INTERCALATIONS AT UNDERGROUND DISSOLVING OF SALT THROUGH BOREHOLES | 0 |
|
SU617583A1 |
| METHOD OF FORMATION OF UNDERGROUND RESERVOIRS IN BEDS OF ROCK SALT | 2008 |
|
RU2357076C1 |
| PROCESS OF UNDERGROUND DISSOLUTION OF SALT DEPOSITS | 2002 |
|
RU2224104C1 |
| BOREHOLE DRILLING IN HIGH-PLASTIC ROCKS IN ROCK SALT DEPOSITS | 0 |
|
SU1701606A1 |
| METHOD FOR CREATING UNDERGROUND RESERVOIRS IN ROCK-SALT FORMATIONS | 2003 |
|
RU2236579C1 |
