FIELD: oil and gas industry.
SUBSTANCE: invention relates to oil and gas industry. Drilling mud for opening the seams in conditions of high reservoir pressures and temperatures contains, mass%: PBMA clay powder 2.24–3.16; CMC-TS thermo salt resistant carboxymethylcellulose 0.27–0.33; Smolopolimer complex multifunctional reagent 1.22–1.78; HPL-11 hydrophobizing liquid 0.31–0.52; Lubricone lubricating additive 1.27–1.48; water, the rest, as well as the galena weighting agent to the required density in excess of 100 % by weight of the unweighted drilling mud.
EFFECT: optimization of the structural-rheological properties of the drilling mud under conditions characterized by high bottom hole temperatures and abnormally high reservoir pressures, limiting of the solids content, in particular, to drilling fluids used in drilling under conditions characterized by high bottom hole temperatures and abnormally high reservoir pressures.
1 cl, 2 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| WEIGHTED MINERALIZED CLAYLESS DRILLING MUD | 2017 |
|
RU2655276C1 |
| WEIGHTED DRILLING FLUID | 2019 |
|
RU2700132C1 |
| 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 |
| PROCEDURE FOR STRENGTHENING UNSTABLE ROCK DURING DRILLING MAINLY INCLINED AND HORIZONTAL HOLES | 2010 |
|
RU2436826C1 |
| WEIGHTED INVERT-EMULSION DRILLING MUD | 2017 |
|
RU2655035C1 |
| DRILLING FLUID FOR WELL CONSTRUCTION IN DIFFICULT CONDITIONS, MAINLY FOR DRILLING EXTENDED-REACH WELLS AND HORIZONTAL WELLS | 2008 |
|
RU2386656C1 |
| STRENGTHENED MINERALIZED BORING SOLUTION FOR THE OPENING OF PRODUCTIVE PLATES WITH ABNORMALLY HIGH PLASTIC PRESSURE | 2018 |
|
RU2683448C1 |
| MUDMAX INHIBITED DRILLING MUD | 2020 |
|
RU2737823C1 |
| POLYMER-CLAY DRILLING FLUID IN PERMAFROST AND HIGHLY COLLOIDAL CLAY ROCKS | 2010 |
|
RU2440398C1 |
| WEIGHTED DISPLACEMENT FLUID | 2014 |
|
RU2561134C1 |
