FIELD: oil and gas production.
SUBSTANCE: salt-tolerant drilling mud containing dm formate (9-44%) as weighting substance, polymer (3-5), marble powder (0-10%) as filler, and water has polymer called Fito-PK.
EFFECT: enhanced flocculation properties of drilling mud to remove sludge during cleaning and heat resistance of drilling mud with low chemical aggression toward environment when exposing formations with abnormally high formation pressure.
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| Title | Year | Author | Number |
|---|---|---|---|
| CLAY-FREE DRILLING FLUID FOR COMPLETION OF FORMATIONS OF CONTROLLED DIRECTIONAL AND HORIZONTAL WELLS IN CONDITIONS OF ABNORMALLY HIGH FORMATION PRESSURES | 2010 |
|
RU2440397C1 |
| CLAYLESS DRILLING MUD | 2004 |
|
RU2277571C1 |
| DRILLING MUD | 2004 |
|
RU2277569C1 |
| HIGH-MINERALIZATION CLAYLESS DRILLING MUD | 2004 |
|
RU2277572C1 |
| MUDMAX INHIBITED DRILLING MUD | 2020 |
|
RU2737823C1 |
| STRENGTHENED MINERALIZED BORING SOLUTION FOR THE OPENING OF PRODUCTIVE PLATES WITH ABNORMALLY HIGH PLASTIC PRESSURE | 2018 |
|
RU2683448C1 |
| DRILLING MUD FOR WELL CONSTRUCTION UNDER CONDITIONS OF ABNORMALLY HIGH FORMATION PRESSURES AND HIGH TEMPERATURES | 2019 |
|
RU2728910C1 |
| HIGHLY INHIBITED CLAY-FREE EMULSION DRILLING MUD | 2018 |
|
RU2698389C1 |
| PROCESS FLUID FOR BORING, COMPLETION AND MAJOR REPAIRS OF OIL AND GAS WELLS UNDER ABNORMALLY HIGH FORMATION PRESSURE AND ELEVATED TEMPERATURE CONDITIONS | 2002 |
|
RU2215016C1 |
| CLAY-FREE DRILLING MUD | 1999 |
|
RU2170753C2 |
