FIELD: mining.
SUBSTANCE: invention relates to well drilling, namely to flush fluids used for cleaning of wells drilled using hydrocarbon based mud. Flush water based fluid contains, wt%: sodium tripolyphosphate 3-4, butyl glycol 10-15, water - the rest.
EFFECT: technical result is high cleaning efficiency of flush fluid and, consequently, improved quality of adhesion of cement stone to rocks and casing.
1 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| DISPLACEMENT LIQUID | 2004 |
|
RU2268350C1 |
| METHOD OF PREPARATION FOR CEMENTING OF WELLS DRILLED USING INVERT-EMULSION DRILLING MUD | 2010 |
|
RU2452849C1 |
| METHOD OF PREPARING WELLS TO CEMENTATION | 1999 |
|
RU2137906C1 |
| BUFFER LIQUID | 2022 |
|
RU2785729C1 |
| UNIVERSAL BUFFER LIQUID | 2003 |
|
RU2253008C1 |
| DISPLACEMENT FLUID | 2001 |
|
RU2204692C2 |
| PROCEDURE FOR INCREASING STRENGTH OF CONTACT OF ANNULUS CEMENT STONE WITH ENVIRONMENT IN WELL | 2007 |
|
RU2366800C2 |
| STRUCTURED FLUSH FLUID | 2022 |
|
RU2792473C1 |
| SPACER LIQUID USED IN CEMENTING OF CASING STRINGS | 2008 |
|
RU2378313C1 |
| BUFFER LIQUID | 2004 |
|
RU2309175C2 |
