FIELD: oil and gas industry, particularly process liquids for killing oil, gas and gas condensate wells with formation pressure exceeding hydrostatic pressure.
SUBSTANCE: liquid includes hydrocarbon base, synthetic fatty acid and atactic polypropylene used as structure-forming agent, sodium hydroxide and weighting agent - barite. Liquid additionally has mineral rubber used as structure-forming agent and silicone fluid. All above components are taken in the following amounts (% by weight): hydrocarbon base - 69-84, synthetic fatty acid - 0.7-2.0, sodium hydroxide - 0.42-1.08, atactic polypropylene - 1.59-4.34, silicone fluid - 0.3-0.5, mineral rubber - 1-8, remainder - weighting agent.
EFFECT: extended range of liquid application, reduced fluid loss, reduced negative action on well bore zone permeability, extended density and temperature range.
3 ex, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| LIQUID FOR OIL AND GAS WELL KILLING | 2004 |
|
RU2264531C1 |
| KILLING FLUID FOR OIL AND GAS WELLS | 2021 |
|
RU2766872C1 |
| HYDROCARBON-BASED DRILLING FLUID | 2001 |
|
RU2208035C1 |
| HYDROCARBON-BASED DRILLING FLUID | 2001 |
|
RU2208034C1 |
| COMPOSITION FOR KILLING OIL, GAS AND GAS CONDENSATE WELLS | 2007 |
|
RU2352603C1 |
| SOLUTION FOR COMPLETION AND KILLING OF LOW-TEMPERATURE OIL AND GAS WELLS | 1999 |
|
RU2167275C2 |
| DRILLING FLUID ON HYDROCARBON BASIS | 2010 |
|
RU2445337C1 |
| ALUM-GYPSUM-POTASSIUM DRILL MUD AND METHOD OF ITS PRODUCTION | 2012 |
|
RU2516400C1 |
| EMULSION SOLUTION ON HYDROCARBON BASE | 2010 |
|
RU2424269C1 |
| HYDROCARBON-BASE DRILLING MUD | 0 |
|
SU1518344A1 |
