FIELD: oil and gas industry.
SUBSTANCE: invention relates to the oil and gas industry, in particular to the compositions used for wells killing. Composition of the polysaccharidic gel for the wells killing, containing mineralized water obtained by the mineral salts dissolving in fresh water, and polysaccharidic thickener, includes calcium chloride and/or calcium nitrate as the mineral salts, biopolymer Biomix Plus as polysaccharidic thickener, and additionally biocide Biolan at the following ratio, wt %: biocide Biolan 0.001-0.010, biopolymer Biomix Plus 0.3-1.5, calcium chloride 0.0-35.0, calcium nitrate 0.0-60.0, fresh water - rest.
EFFECT: increased density, reduced filtration.
6 ex, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION OF POLYSACCHARID LIQUID FOR WELL KILLING AND FLUSHING AND METHOD FOR ITS PREPARATION AND APPLICATION | 2016 |
|
RU2643394C1 |
| BLOCKING COMPOUND FOR ELIMINATION OF ABSORPTIONS IN PRODUCTION FORMATIONS DURING WELL DRILLING | 2022 |
|
RU2794253C1 |
| WELL KILLING POLYSACCHARIDE GEL COMPOSITION AND METHOD FOR PRODUCING THE SAME | 2003 |
|
RU2246609C2 |
| COMPOSITION OF POLYSACCHARIDE GEL FOR DAMPING AND WASHING OF WELLS AND METHOD OF ITS PREPARING | 2007 |
|
RU2365611C1 |
| COMPOSITION OF WELL-KILLING EMULSION POLYSACCHARIDE FLUID AND A METHOD FOR PREPARATION THEREOF | 2005 |
|
RU2297436C2 |
| METHOD OF KILLING WELLS WITH ABNORMAL LOW FORMATION PRESSURE | 2005 |
|
RU2330942C2 |
| DRY MIXTURE FOR KILLING OF OIL AND GAS WELLS AND TREATMENT OF BOTTOMHOLE ZONE | 2014 |
|
RU2582151C1 |
| WEIGHTED LIQUID WITHOUT A SOLID PHASE FOR KILLING OIL AND GAS WELLS | 2020 |
|
RU2744224C1 |
| OIL AND GAS WELL KILLING FLUID | 2016 |
|
RU2627807C1 |
| HEAVY PROCESS FLUID FOR KILLING WELLS, COMPOSITION AND METHOD FOR PREPARATION THEREOF | 2019 |
|
RU2731965C1 |
