FIELD: oil and gas industry.
SUBSTANCE: invention is related to drilling of wells. Water-based drill fluid contains cationic salt of polyamine carboxylic acids at alkali pH higher than 9.0.
EFFECT: increased bit drilling rate in carbonaceous rocks, reduced time of well-drilling, reduced corrosion of drill stem and surface of drilling equipment.
13 cl, 1 tbl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HIGHLY INHIBITED CLAY-FREE EMULSION DRILLING MUD | 2018 |
|
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| DRILLING FLUID CONTAINING POLYMER AND USE OF POLYMER IN DRILLING FLUID | 2006 |
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| WELL COMPLETION METHOD | 2004 |
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| CLAYLESS DRILLING MUD FOR CONTROLLED DIRECTIONAL AND HORIZONTAL HOLES AND FOR EXPOSING PRODUCTIVE FORMATIONS (VERSIONS) | 2001 |
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|
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| PROCEDURE FOR DRILLING BOREHOLES INCLUDING HORIZONTAL ONES UNDER CONDITIONS OF LOST CIRCULATION HORIZONS | 2010 |
|
RU2421592C1 |
| AMINES OF GLYCOLIC ESTERS FOR USE AS AGENTS FOR PREVENTION OF DISPERSION OF PLATE AND CLAY ROCKS FOR DRILLING INDUSTRY | 2013 |
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RU2601636C2 |
| SOLID PHASE-FREE DRILLING MUD WITH IMPROVED LUBRICANT PROPERTIES | 2005 |
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RU2290426C1 |
