FIELD: oil and gas industry.
SUBSTANCE: peat alkaline drilling mud for well drilling in permafrost includes, wt %: peat 5-7; potassium-containing alkaline modifier 0.5-1.5; potassium chloride as inhibitor 1-3; polymer flocculant and fluid loss reducing agent Polydia 0.1-0.5; froth suppressor MAC-200M 1-3; the rest is water.
EFFECT: enhanced reliability of well drilling in clay rocks, especially in permafrost under abnormally low reservoir pressure due to high inhibition properties of drilling mud and low foaming.
2 tbl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PEAT ALKALINE DRILLING MUD FOR OPENING PRODUCING RESERVOIR | 2015 |
|
RU2602280C1 |
| POLYMER PEAT ALKALINE DRILLING MUD | 2015 |
|
RU2616634C1 |
| VISCOELASTIC COMPOSITION FOR KILLING OIL AND GAS WELLS | 2015 |
|
RU2601708C1 |
| CLAYLESS DRILLING FLUID | 1995 |
|
RU2102429C1 |
| DRILLING FLUID | 2023 |
|
RU2806691C1 |
| POLYMERIC DRILLING FLUID FOR EXPOSING PRODUCTION FORMATIONS | 2004 |
|
RU2266312C1 |
| HIGHLY INHIBITED CLAY-FREE EMULSION DRILLING MUD | 2018 |
|
RU2698389C1 |
| POLYMER-BASED DRILLING MUD FOR WELL CONSTRUCTION | 2015 |
|
RU2601635C1 |
| DRILLING MUD | 1996 |
|
RU2119520C1 |
| CATION-INHIBITING DRILLING MUD (VARIANTS) | 2017 |
|
RU2661955C1 |
