FIELD: mining.
SUBSTANCE: invention relates to drilling directional and horizontal oil and gas wells. Drilling fluid for drilling comprises wt%: marble chips 5-10; polyanionic cellulose 5-10; sulfanol 2-5; potassium chloride 2-5; potassium methylsiliconate 1-4; potassium acetate 1.5-4; bischofite 2-5; ferrochrome lignosulphonate 1-5; NGL-11 2-5; barite 0.5-5; anti-foaming agent 0.5-1; liquid phase - balance, wherein liquid phase comprises vegetable oil wastes and water in ratio, wt%: 55/45-80/20.
EFFECT: technical result is improvement of structural-rheological, inhibiting, lubricating, attaching, anti-sticking and environmental properties of drilling mud for drilling under complicated conditions.
1 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| NANOSTRUCTURED HIGH-INHIBITED DRILLING FLUID | 2019 |
|
RU2708849C1 |
| HIGH-CATION-INHIBITED DRILLING MUD | 2021 |
|
RU2768340C1 |
| HIGHLY INHIBITED INVERT DRILLING AGENT | 2019 |
|
RU2710654C1 |
| EMULSION-INHIBITED REVERSE-INVERT DRILLING MUD | 2021 |
|
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| HIGHLY INHIBITED DRILLING | 2006 |
|
RU2303047C1 |
| DRILLING FLUID FOR WELL CONSTRUCTION IN DIFFICULT CONDITIONS, MAINLY FOR DRILLING EXTENDED-REACH WELLS AND HORIZONTAL WELLS | 2008 |
|
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| LOADED DRILLING MUD | 2011 |
|
RU2461600C1 |
| GEL-DRILL DRILLING FLUID | 2018 |
|
RU2687815C1 |
| DRILLING AGENT FOR DEVIATING HOLES | 2007 |
|
RU2369625C2 |
| DRILLING FLUID FOR FLUSHING OF LONG-DISTANCE STEEPLY INCLINED WELLS UNDER CONDITIONS OF PERMAFROST AND HIGHLY COLLOIDAL CLAY ROCKS, AND ITS APPLICATION METHOD | 2011 |
|
RU2483091C1 |
