FIELD: drilling.
SUBSTANCE: invention relates to the field of construction and maintenance of boreholes, particularly, to liquids for isolating intercasing crossflows of petroleum and gas boreholes complicated by the presence of formations with abnormally low hydraulic fracturing pressure. The composition for isolating water production includes, % wt.: sodium lauryl sulfate 0.04 to 0.1%, sodium carbonate 0.06, biopol 0.3 to 2.6, chalk 1.0 to 3.5, potassium acetate 0.05, polyanionic cellulose 0 to 0.5, distilled water the rest.
EFFECT: creation of a composition for blocking intercasing crossflows of petroleum and gas boreholes complicated by the presence of formations with abnormally low hydraulic fracturing pressure.
1 cl, 3 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| HEAT-RESISTANT BIOPOLYMER DRILLING MUD | 2018 |
|
RU2711222C1 |
| BIOPOLYMER DRILLING FLUID | 2022 |
|
RU2804720C1 |
| DRILLING AGENT FOR DEVIATING HOLES | 2007 |
|
RU2369625C2 |
| BLOCKING COMPOSITE FOR ISOLATION OF LOSS-CIRCULATION ZONES DURING WELL DRILLING AND WORKOVER OPERATION | 2012 |
|
RU2487909C1 |
| LIGHT-WEIGHT DRILLING MUD FOR DRILLING OF FORMATIONS UNDER CONDITIONS OF ABNORMALLY LOW FORMATION PRESSURES | 2011 |
|
RU2474602C1 |
| POLYMER-BASED DRILLING MUD FOR WELL CONSTRUCTION | 2015 |
|
RU2601635C1 |
| GEL-DRILL DRILLING FLUID | 2018 |
|
RU2687815C1 |
| LOADED DRILLING MUD | 2011 |
|
RU2461600C1 |
| DRILLING MUD | 2015 |
|
RU2582197C1 |
| CLAYLESS LOADED DRILLING MUD | 2011 |
|
RU2481374C1 |
