CN106673523A - Protective mud applicable to pore forming by rotary drilling rig in geology of thick sand layer and preparation method of protective mud - Google Patents
Protective mud applicable to pore forming by rotary drilling rig in geology of thick sand layer and preparation method of protective mud Download PDFInfo
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- CN106673523A CN106673523A CN201611224991.7A CN201611224991A CN106673523A CN 106673523 A CN106673523 A CN 106673523A CN 201611224991 A CN201611224991 A CN 201611224991A CN 106673523 A CN106673523 A CN 106673523A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/001—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing unburned clay
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/514—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses protective mud applicable to pore forming by a rotary drilling rig in geology of a thick sand layer and a preparation method of the protective mud. The protective mud is prepared from components in parts by mass as follows: 100 parts of water, 5-15 parts of yellow clay, 1-3 parts of sodium carbonate, 0.4-1.2 parts of carboxymethyl cellulose, 0.003-0.006 parts of polyacrylamide, 0.0001-0.0003 parts of vegetable gum and 0.0001-0.0002 parts of poly(sodium-p-styrenesulfonate). The carboxymethyl cellulose, polyacrylamide, the vegetable gum and poly(sodium-p-styrenesulfonate) are taken as additives, the carboxymethyl cellulose expands after absorbing water and forms a viscous liquid, the consistency can be improved, and a film is formed on the soil layer surface to protect colloid and water and prevent hole wall from stripping; a flocculating agent is produced from polyacrylamide through hydrolysis, the viscosity of the mud can be greatly improved by doping a small quantity of the flocculating agent, so that residues are carried and leakage is blocked, and the working performance of the mud is improved greatly.
Description
Technical field
The present invention relates to the technical field of slurry coat method, in particular to a kind of suitable for thick sand bed geology rotary digging drilled as holes
Slurry coat method and preparation method thereof.
Background technology
In pile foundation engineering pore-forming operation, the country is constructed frequently with churning driven, with power is big, efficiency high, construction spirit
The features such as living.For different geological conditions, different constructions during construction, should be adopted.When pile foundation in it is loose, be easier to cave in
Stratum, or during stratum under level of ground water, wet type rotary digging engineering method must be adopted during construction, is protected using slurry coat method
Wall, plays that holding hole wall is stable, prevents from caving in, borehole cleaning excluding the effect such as boring mud.
However, in work progress, most engineerings are irrigated frequently with the slurry coat method of identical proportioning, soil layer will not be directed to
The difference of property is reasonably corrected.To different geological conditions, proportioning is improper to cause mud property index to be unsatisfactory for requiring,
Hole quality is reduced, delays construction speed.Common bentonite base mud components are simple, single function, dispersibility are poor, it is difficult to
Meet the construction requirement of Different Strata, especially in thick sand bed geology, it is impossible to form mud film well, easily cause collapse hole and bury
Bore, and borehole cleaning speed is excessively slow, sand content in mud is high.Additionally, often ignoring the economy of mud configuration, cost of material in engineering
Height, causes unnecessary waste.
The content of the invention
Present invention aim to provide a kind of slurry coat method and its system suitable for thick sand bed geology rotary digging drilled as holes
Preparation Method, the mud components of the slurry coat method are various, complete function, good dispersion, can meet the construction requirement of Different Strata, especially
Which is that, in thick sand bed geology, slip consistency is high, forms mud film protecting colloid and moisture in mud surface, prevents hole wall from peeling off, follow
Slag effect is taken during ring good, can comparatively fast reduce sand factor in mud.
For achieving the above object, a kind of retaining wall mud suitable for thick sand bed geology rotary digging drilled as holes provided by the present invention
Slurry, is formulated by following component according to mass fraction：100 parts of water, yellow clay 5-15 parts, soda 1-3 parts, carboxymethyl cellulose
0.4-1.2 parts, polyacrylamide 0.003-0.006 parts, plant gum 0.0001-0.0003 parts, Sodium Polystyrene Sulfonate 0.0001-
0.0002 part.
Preferably, the described slurry coat method suitable for thick sand bed geology rotary digging drilled as holes, according to mass parts
Number is formulated by following component：It is 100 parts of water, yellow clay 8-10 parts, soda 1.5-2 parts, carboxymethyl cellulose 0.6-1 parts, poly-
Acrylamide 0.004-0.005 parts, plant gum 0.0001-0.0002 parts, Sodium Polystyrene Sulfonate 0.0001-0.0002 part.
As preferred plan ground, the described slurry coat method suitable for thick sand bed geology rotary digging drilled as holes, according to mass parts
Number is formulated by following component：100 parts of water, 9 parts of yellow clay, 1.8 parts of soda, 0.8 part of carboxymethyl cellulose, polyacrylamide
0.0045 part, 0.0002 part of plant gum, 0.00015 part of Sodium Polystyrene Sulfonate.
Further, the plant gum be sesbania gum, guar gum, one or more in fenugreek gum.
Further, contain montmorillonite in the yellow clay, the montmorillonite accounts for the mass percent of yellow clay gross mass
For 50-60%.
The preparation method of the slurry coat method suitable for thick sand bed geology rotary digging drilled as holes of the present invention, comprises the steps：
Yellow clay being crushed input sleeve pipe by mass fraction formula, slurrying being rotated using drilling bucket, addition soda stirs to the pH of system and is
9-10, sequentially adds carboxymethyl cellulose, polyacrylamide, plant gum, Sodium Polystyrene Sulfonate uniform mixing, stirs into
Slurry aquation decomposes 24-36h, you can.
Compared with prior art, the invention has the advantages that：
First, the bentonite of the present invention adopts yellow clay as main pulping raw material.Yellow clay contains substantial amounts of illiteracy and takes off
Stone (mass percent is 50-60%), its particle diameter is less, water easily expands chance, viscosity is strong, plasticity is high, sand content is low, is a kind of
Natural special clay, adopts yellow clay, raw material sources extensively, easily to obtain, is ensureing the same of pile foundation engineering quality in engineering
When, can effective reduces cost, economy is high, and is beneficial to environmental conservation, reduces pollution.
Second, the present invention adopts carboxymethyl cellulose (CMC), polyacrylamide (PAM), plant gum, polystyrolsulfon acid
Sodium forms glutinous colloidal liquid, by increasing capacitance it is possible to increase denseness, in soil layer as additive, wherein carboxymethyl cellulose (CMC) imbibition
Surface filming, protecting colloid and moisture, prevent hole wall from peeling off；Polyscrylamide (PAM) hydrolysis generates flocculant PHP (polypropylene
Amide), the viscosity that can be just greatly enhanced mud on a small quantity is mixed, so as to take slag, leak stopping, the service behaviour of mud is greatly improved；
Plant gum meets that water energy is swelling is hydrated to form high-viscosity sol solutionses, and its viscosity is dramatically increased with the increase of powder concentration, Er Qiejia
Enter the mud after plant gum and there is good rheological property, be conducive to hole wall stable；Sodium Polystyrene Sulfonate is a kind of with only
The water-soluble polymer of special effect, the sulfonic acid group on macromolecular chain so as to very strong infiltration peptizaiton.
Third, containing soda in the formula of the present invention, the pH value of mud can be increased；In strong basicity environment, clay
Grain is more easy to decompose, and the stability of mud, colloidity increase, and the slurry coat method of high-quality is prevented effectively from showing for hole wall collapse
As the data such as stake holes aperture, perpendicularity after pile foundation construction reach design requirement, it is ensured that hole quality and efficiency, it is ensured that high
Effect orderly construction.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail.
Embodiment 1：
The slurry coat method suitable for thick sand bed geology rotary digging drilled as holes of the present embodiment, according to mass fraction by following component
It is formulated：100 parts of water, 5 parts of yellow clay (montmorillonite containing mass percent is 50-60%), 3 parts of soda, carboxymethyl are fine
Tie up plain 0.8 part, 0.003 part of polyacrylamide, 0.0001 part of plant gum (sesbania gum 0.00005g, guar gum 0.00005g), gather
0.0001 part of Sodium styrene sulfonate.
Embodiment 2：
The slurry coat method suitable for thick sand bed geology rotary digging drilled as holes of the present embodiment, according to mass fraction by following component
It is formulated：100 parts of water, 15 parts of yellow clay (montmorillonite containing mass percent is 50-60%), 3 parts of soda, carboxymethyl are fine
0.8 part of dimension element, 0.006 part of polyacrylamide, 0.0003 part of plant gum (sesbania gum 0.0001g, guar gum 0.0001g, fenugreek gum
0.0001g), 0.0002 part of Sodium Polystyrene Sulfonate.
Embodiment 3：
The slurry coat method suitable for thick sand bed geology rotary digging drilled as holes of the present embodiment, according to mass fraction by following component
It is formulated：100 parts of water, 15 parts of yellow clay (montmorillonite containing mass percent is 50-60%), 1.8 parts of soda, carboxymethyl
0.8 part of cellulose, 0.004 part of polyacrylamide, 0.0001 part of plant gum (sesbania gum 0.00005g, fenugreek gum 0.00005g),
0.0001 part of Sodium Polystyrene Sulfonate.
Embodiment 4：
The slurry coat method suitable for thick sand bed geology rotary digging drilled as holes of the present embodiment, according to mass fraction by following component
It is formulated：100 parts of water, 8 parts of yellow clay (montmorillonite containing mass percent is 50-60%), 3 parts of soda, carboxymethyl are fine
0.6 part of dimension element, 0.005 part of polyacrylamide, 0.00025 part of plant gum (0.00025 part of sesbania gum), Sodium Polystyrene Sulfonate
0.0002 part.
Embodiment 5：
The slurry coat method suitable for thick sand bed geology rotary digging drilled as holes of the present embodiment, according to mass fraction by following component
It is formulated：100 parts of water, 10 parts of yellow clay (montmorillonite containing mass percent is 50-60%), 1 part of soda, carboxymethyl are fine
1.2 parts of dimension element, 0.0045 part of polyacrylamide, 0.0002 part of plant gum (0.0002 part of fenugreek gum), Sodium Polystyrene Sulfonate
0.0002 part.
Embodiment 6：
The slurry coat method suitable for thick sand bed geology rotary digging drilled as holes of the present embodiment, according to mass fraction by following component
It is formulated：100 parts of water, 9 parts of yellow clay (montmorillonite containing mass percent is 50-60%), 1.8 parts of soda, carboxymethyl
0.8 part of cellulose, 0.0045 part of polyacrylamide, 0.0002 part of plant gum (0.00005 part of fenugreek gum, guar gum 0.00005g,
0.0001 part of sesbania gum), 0.00015 part of Sodium Polystyrene Sulfonate.
Embodiment 7：
The slurry coat method suitable for thick sand bed geology rotary digging drilled as holes of the present embodiment, according to mass fraction by following component
It is formulated：100 parts of water, 12 parts of yellow clay (montmorillonite containing mass percent is 50-60%), 1.5 parts of soda, carboxymethyl
1.0 parts of cellulose, 0.005 part of polyacrylamide, 0.00015 part of plant gum (0.00005 part of fenugreek gum, sesbania gum 0.0001
Part), 0.0001 part of Sodium Polystyrene Sulfonate.
Embodiment 8：
The slurry coat method suitable for thick sand bed geology rotary digging drilled as holes of the present embodiment, according to mass fraction by following component
It is formulated：100 parts of water, 9 parts of yellow clay (montmorillonite containing mass percent is 50-60%), 2 parts of soda, carboxymethyl are fine
Tie up plain 0.4 part, 0.0045 part of polyacrylamide, 0.0002 part of plant gum (0.0001 part of fenugreek gum, 0.0001 part of sesbania gum), gather
0.00015 part of Sodium styrene sulfonate.
The formula of embodiment 1~8 is as shown in table 1：
Table 1
Pulping process flow of the present invention is：Yellow clay co-grinding → start slurrying → the yellow clay that adds water → add → mix and stir
→NaCO3→ mix and stir → add carboxymethyl cellulose, polyacrylamide, plant gum, Sodium Polystyrene Sulfonate → mix and stir → index
Inspection → qualified pulp.Each step concrete operations is as follows：
Before slurrying, first yellow clay should be smashed, be easy to slurrying.The pH value at water source to be measured before slurrying, according to survey
Fixed number is according to determination soda NaCO3Addition, to ensure that the pH value of mud system is defined between 9-10, so as to reduce pH value pair
The impact of mud property.
During slurrying, by the clay input sleeve pipe crushed, slurrying is rotated using drilling bucket, while being gradually added into water in proportion, made
Clay is rapid, fully aquation dispersion.After clay dispersion, it is initially charged soda and mixes and stirs, adds carboxymethyl cellulose (CMC), gathers
Acrylamide (PAM), plant gum, Sodium Polystyrene Sulfonate are mixed and stirred, it is ensured that each material uniform mixing in mud.Treat that clay is stirred into
After mud, after the proportioning of tests determined mud, performance are satisfied by index request, churning driven drilling can be carried out.
During slurrying, should follow strictly claimed below：(1) in strict accordance with proportioning mixing mud, the mixing time is no less than
10min；New slurry made by mixing must can be used after aquation in mud pit decomposes 24h；New slurry must be entered with slush pump during placing
Row pond interior circulation.The mud for preparing should be opaque, cementing to be integrated, and when closely observing, visible fine grained suspends, long-time
Place slurry surface and can separate out the thick clear water layers of 2-3cm, such as disturbed, mud is again into cementing shape.It is after the completion of drill-pouring, unnecessary
Mud vibrosieve separate out solid particle after, drain into sedimentation tank natural sedimentation.Finally, sediment is transported to evaporation tank natural-dehydration
After solidification, bedding plant is delivered to, facilitate secondary utilization.
Mud configuration should be adjusted according to strata condition during construction：To cement soil layer, mud density suitably should take little
Value；To silty strata, mud density suitably should be increased.Strata condition is considered as during use, is sized mixing in time, mended slurry, it is to avoid affected
Construction quality.In addition, relative density, 3 indexs of viscosity and sand factor should be determined in construction, realize seeing the dynamic of mud property
Survey.
The slurry coat method prepared using above-described embodiment 1~8 and comparative example 1 are using commercially available common slurry coat method in drilling
After construction pore-creating 1 hour, detection hole in mud property index and carry out statistics it is as shown in table 1 below：
Table 1
| Project | Proportion (g/cm2) | Viscosity (pa.s) | Sand factor (%) | Sediment thickness (m) |
| Embodiment 1 | 1.18 | 41 | 1.7 | 0 |
| Embodiment 2 | 1.19 | 43 | 1.9 | 0 |
| Embodiment 3 | 1.17 | 40 | 1.8 | 0.1 |
| Embodiment 4 | 1.14 | 39 | 1.9 | 0 |
| Embodiment 5 | 1.18 | 42 | 1.8 | 0 |
| Embodiment 6 | 1.16 | 44 | 1.6 | 0 |
| Embodiment 7 | 1.19 | 41 | 1.9 | 0.1 |
| Embodiment 8 | 1.17 | 40 | 1.8 | 0 |
| Comparative example 1 | 1.2 | 35 | 2.2 | 0.4 |
As it can be seen from table 1 the viscosity of embodiment 1~8 is better than comparative example 1, sand factor is 1.6~1.9%, much smaller than right
The sand factor 3.5% of ratio 1, and sediment thickness is almost 0, so as to the slurry coat method for proving present invention preparation is more homogeneous steady
Fixed, dispersibility is more preferable, with more superior prop-carrying capacity.
The above, specific embodiment only of the invention, it is noted that any those of ordinary skill in the art exist
Disclosed herein technical scope in, the change or replacement that can be readily occurred in, should all cover protection scope of the present invention it
It is interior.
Claims (6)
1. a kind of slurry coat method suitable for thick sand bed geology rotary digging drilled as holes, it is characterised in that according to mass fraction by as follows
Component is formulated：100 parts of water, yellow clay 5-15 parts, soda 1-3 parts, carboxymethyl cellulose 0.4-1.2 parts, polyacrylamide
0.003-0.006 parts, plant gum 0.0001-0.0003 parts, Sodium Polystyrene Sulfonate 0.0001-0.0002 part.
2. the slurry coat method suitable for thick sand bed geology rotary digging drilled as holes according to claim 1, according to mass fraction by
Following component is formulated：100 parts of water, yellow clay 8-10 parts, soda 1.5-2 parts, carboxymethyl cellulose 0.6-1 parts, polypropylene
Amide 0.004-0.005 parts, plant gum 0.0001-0.0002 parts, Sodium Polystyrene Sulfonate 0.0001-0.0002 part.
3. the slurry coat method suitable for thick sand bed geology rotary digging drilled as holes according to claim 2, according to mass fraction by
Following component is formulated：100 parts of water, 9 parts of yellow clay, 1.8 parts of soda, 0.8 part of carboxymethyl cellulose, polyacrylamide
0.0045 part, 0.0002 part of plant gum, 0.00015 part of Sodium Polystyrene Sulfonate.
4. the slurry coat method suitable for thick sand bed geology rotary digging drilled as holes according to claim 1 or 2 or 3, its feature exist
In：Contain montmorillonite in the yellow clay, it is 50-60% that the montmorillonite accounts for the mass percent of yellow clay gross mass.
5. the slurry coat method suitable for thick sand bed geology rotary digging drilled as holes according to claim 1 or 2 or 3, its feature exist
In：The plant gum is sesbania gum, guar gum, one or more in fenugreek gum.
6. the preparation side of the slurry coat method suitable for thick sand bed geology rotary digging drilled as holes described in a kind of claim 1 or 2 or 3
Method, comprises the steps：Yellow clay is crushed input sleeve rotating slurrying by mass fraction formula, adds soda to stir to system
PH be 9-10, sequentially add carboxymethyl cellulose, polyacrylamide, plant gum, Sodium Polystyrene Sulfonate uniform mixing, stir
The slurry aquation for mixing decomposes 24-36h, you can.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611224991.7A CN106673523A (en) | 2016-12-27 | 2016-12-27 | Protective mud applicable to pore forming by rotary drilling rig in geology of thick sand layer and preparation method of protective mud |
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| CN201611224991.7A CN106673523A (en) | 2016-12-27 | 2016-12-27 | Protective mud applicable to pore forming by rotary drilling rig in geology of thick sand layer and preparation method of protective mud |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108276978A (en) * | 2018-04-02 | 2018-07-13 | 中国矿业大学(北京) | A kind of underground coal mine is with boring anti-collapse type flushing liquor and preparation method thereof |
| CN108411897A (en) * | 2018-03-19 | 2018-08-17 | 沙焕焕 | Flocculate cement-soil composite pile |
| CN108586826A (en) * | 2018-05-18 | 2018-09-28 | 河北金丰新材料科技有限公司 | Composite chemical mud materials and preparation method thereof |
| CN109054783A (en) * | 2018-09-21 | 2018-12-21 | 无锡地铁集团有限公司 | A kind of pressure-bearing layer of sand pile pulling slurry coat method and preparation method thereof |
| CN109665757A (en) * | 2018-12-14 | 2019-04-23 | 沈阳建筑大学 | A kind of slurry coat method with magnetosensitive thickening power, preparation method and application |
| CN110055042A (en) * | 2019-04-26 | 2019-07-26 | 介休鑫峪沟集团企业管理有限公司 | A kind of method that common yellow clay produces fining clay refining |
| CN111718699A (en) * | 2019-10-23 | 2020-09-29 | 沈阳工业大学 | Drilling pile-forming wall-protecting slurry for calcareous cemented geological region and preparation method thereof |
| CN116891731A (en) * | 2023-07-18 | 2023-10-17 | 核工业二八0研究所 | Formula of wall protection slurry for loose complex rock formation drilling |
| CN116948612A (en) * | 2023-06-30 | 2023-10-27 | 金徽矿业股份有限公司 | Preparation method of drilling construction carbonaceous layer slurry |
| CN117307816A (en) * | 2023-11-28 | 2023-12-29 | 中国建筑第六工程局有限公司 | Construction method for long-distance side-penetrating old drainage concrete pipeline of jacking pipe |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411897A (en) * | 2018-03-19 | 2018-08-17 | 沙焕焕 | Flocculate cement-soil composite pile |
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| CN109665757A (en) * | 2018-12-14 | 2019-04-23 | 沈阳建筑大学 | A kind of slurry coat method with magnetosensitive thickening power, preparation method and application |
| CN110055042A (en) * | 2019-04-26 | 2019-07-26 | 介休鑫峪沟集团企业管理有限公司 | A kind of method that common yellow clay produces fining clay refining |
| CN111718699A (en) * | 2019-10-23 | 2020-09-29 | 沈阳工业大学 | Drilling pile-forming wall-protecting slurry for calcareous cemented geological region and preparation method thereof |
| CN116948612A (en) * | 2023-06-30 | 2023-10-27 | 金徽矿业股份有限公司 | Preparation method of drilling construction carbonaceous layer slurry |
| CN116891731A (en) * | 2023-07-18 | 2023-10-17 | 核工业二八0研究所 | Formula of wall protection slurry for loose complex rock formation drilling |
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