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Буровой раствор (промывочная жидкость)
| Глоссарий строительных терминов инженерных изысканий |
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Drilling fluid, английский
- Water that may contain additives, including bentonite, polymers, soda ash, surfactants, or other materials, to enhance stability and excavatability. if the drilling fluid contains additives and is design to have specific properties, it is considered to be an engineered drilling fluid, whether specified by the engineer or selected by the contractor. some additives may increase the effectiveness of the drilling fluid and reduce adhesion of the spoils (cuttings). the drilling fluid is used in a closed-loop system for transporting spoils and for counterbalancing earth and groundwater pressures during microtunneling.
- Largely comprised of water, drilling fluids usually include bentonite and if warranted other additives such as soda ash, polymers, and detergents to address water and soils properties that could compromise the successful completion of the hdd installation.
- Circulating fluid, one function of which is to lift cuttings out of the wellbore and to the surface. it also serves to cool the bit and to counteract downhole formation pressure. although a mixture of barite, clay, water, and other chemical additives is the most common drilling fluid, wells can also be drilled by using air, gas, water, or oil-base mud as the drilling mud. also called circulating fluid, drilling mud. see mud.
Drilling mud, английский
- Drilling mud, or “drilling fluid” is liquid pumped down through the inside of drill pipe, and out the drill bit, to cool the drill bit from the friction from drilling rock, clean the borehole of cuttings, and also create a protective covering on the borehole walls to help prevent borehole wall collapse. different mixes are used for riser drilling and for riserless drilling. riser drilling requires adjustments of rheology and specific gravity (density) of the drilling mud. riser drilling requires a much more complex mixture of special chemicals which are recovered on chikyu, cleaned and re-used by separating out the cuttings from the drilling mud. riserless drilling uses a seawater-based mud, without the expensive chemicals used for riser drilling.
- Specially compounded liquid circulated through the wellbore during rotary drilling operations. see drilling fluid, mud.
Drilling fluid, drilling mud, английский
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Drilling fluid, английский
- Water that may contain additives, including bentonite, polymers, soda ash, surfactants, or other materials, to enhance stability and excavatability. if the drilling fluid contains additives and is design to have specific properties, it is considered to be an engineered drilling fluid, whether specified by the engineer or selected by the contractor. some additives may increase the effectiveness of the drilling fluid and reduce adhesion of the spoils (cuttings). the drilling fluid is used in a closed-loop system for transporting spoils and for counterbalancing earth and groundwater pressures during microtunneling.
- Largely comprised of water, drilling fluids usually include bentonite and if warranted other additives such as soda ash, polymers, and detergents to address water and soils properties that could compromise the successful completion of the hdd installation.
- Circulating fluid, one function of which is to lift cuttings out of the wellbore and to the surface. it also serves to cool the bit and to counteract downhole formation pressure. although a mixture of barite, clay, water, and other chemical additives is the most common drilling fluid, wells can also be drilled by using air, gas, water, or oil-base mud as the drilling mud. also called circulating fluid, drilling mud. see mud.
Делювий (наносы), русский
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