CN1944280A - Method for treating waste mud of drilling well by harmless process - Google Patents
Method for treating waste mud of drilling well by harmless process Download PDFInfo
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- CN1944280A CN1944280A CN 200610022008 CN200610022008A CN1944280A CN 1944280 A CN1944280 A CN 1944280A CN 200610022008 CN200610022008 CN 200610022008 CN 200610022008 A CN200610022008 A CN 200610022008A CN 1944280 A CN1944280 A CN 1944280A
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- 238000005553 drilling Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000002699 waste material Substances 0.000 title claims abstract description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 54
- 238000003756 stirring Methods 0.000 claims abstract description 48
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 36
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 19
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 18
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 18
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims abstract description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 12
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 9
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims abstract description 8
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 8
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 6
- 239000010440 gypsum Substances 0.000 claims abstract description 6
- 239000003463 adsorbent Substances 0.000 claims abstract description 3
- 235000006408 oxalic acid Nutrition 0.000 claims abstract description 3
- 239000002002 slurry Substances 0.000 claims description 120
- 235000017550 sodium carbonate Nutrition 0.000 claims description 17
- 230000000536 complexating effect Effects 0.000 claims description 15
- KBIWNQVZKHSHTI-UHFFFAOYSA-N 4-n,4-n-dimethylbenzene-1,4-diamine;oxalic acid Chemical compound OC(=O)C(O)=O.CN(C)C1=CC=C(N)C=C1 KBIWNQVZKHSHTI-UHFFFAOYSA-N 0.000 claims description 10
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 10
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 10
- 239000004571 lime Substances 0.000 claims description 10
- 235000019353 potassium silicate Nutrition 0.000 claims description 8
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 8
- 229940037003 alum Drugs 0.000 claims description 7
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 239000001117 sulphuric acid Substances 0.000 claims description 6
- 235000011149 sulphuric acid Nutrition 0.000 claims description 6
- 150000007513 acids Chemical class 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical class [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 2
- 239000002594 sorbent Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 239000000839 emulsion Substances 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 abstract 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 1
- 239000005708 Sodium hypochlorite Substances 0.000 abstract 1
- 239000007844 bleaching agent Substances 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 239000005416 organic matter Substances 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 13
- 238000003912 environmental pollution Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- KQTVWCSONPJJPE-UHFFFAOYSA-N etridiazole Chemical compound CCOC1=NC(C(Cl)(Cl)Cl)=NS1 KQTVWCSONPJJPE-UHFFFAOYSA-N 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010129 solution processing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The innocent treating process of waste drilling mud includes the following steps: 1. adding industrial hydrochloric acid, sulfuric acid and/or oxalic acid into waste drilling mud through stirring in a mud pit to neutralize sodium hydroxide and sodium carbonate and complex metal ion; 2. adding oxidant bleaching powder, hydrogen peroxide and/or sodium hypochlorite through stirring to eliminate or reduce organic matter content, lower CODCr and chroma and eliminate sulfide; and 3. adding adsorbent polysodium silicate, aluminum sulfate, gypsum powder and/or magnesia through stirring to adsorb water, destroy emulsion balance of mud, alter mud performance, block outward penetration of pollutant and form solid. The present invention has relatively low treatment cost.
Description
Technical field
The present invention relates to a kind of treatment process of drilling well discarded slurry, relate in particular to a kind for the treatment of waste mud of drilling well by harmless process.
Background technology
The drilling well discarded slurry is a kind of waste of industrial gas oil exploitation, usually be to retain in for a long time in the suction pit of drilling well field or buried in underground through the general back of handling, these methods are not owing to do harmless treatment, need take a large amount of soils, the severe contamination atmosphere, soil, groundwater resource cause the huge wasting of resources.Though some domestic after eighties oil-gas fields adopt cement-based solidified method, lime base curing, the organic polymer curing is handled discarded slurry, but still has following problem:
1, in the acid of acid of no use or capacity and sodium hydroxide in the discarded slurry and yellow soda ash, make the leach liquor pH value of cured article be strong basicity, and As time goes on sodium hydroxide and yellow soda ash do not degrade, and the alkaline pollution source are embedded in the suction pit in well site for a long time or buried in underground;
2, the organism in the discarded slurry, sulfide is thoroughly handled, and makes the chemical oxygen demand cod of leach liquor
CrVery high, sometimes up to more than the 500mg/L, and it is dark especially to leach color, is brown or yellow-green colour, and extension rate is hundreds of times, and also there is potential safety hazard in a large amount of leachings of sulfide simultaneously;
Though 3 some seal up for safekeeping, As time goes on, after sealer coat destroyed, environmental pollution existed in the same old way;
4, processing costs is higher, makes the easier selection of manager adopt simple natural air drying, simply buries mode, causes more serious environmental pollution.
Summary of the invention
The objective of the invention is to for not enough a kind for the treatment of waste mud of drilling well by harmless process, solution processing costs height, the environmental pollution problems of providing of prior art is provided.
Method of the present invention realizes by following steps:
A, in suction pit, stir to add in hydrochloric acid or sulfuric acid or the oxalic acid at least a industrial acids and sodium hydroxide in the discarded slurry and yellow soda ash, the metal ion in the complexing mud;
B, add at least a oxygenant in chlorinated lime or hydrogen peroxide or the clorox in stirring and remove or reduce organic content in the discarded slurry, reduce COD
CrAnd colourity, remove the sulfide in the mud;
Add the moisture content at least a adsorbents adsorb discarded slurry in poly water glass or Tai-Ace S 150 or alum or terra alba or the magnesium oxide in C, the stirring, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent, form powdery or blocks of solid to exosmosis.
The add-on of said industrial acids is: 31% technical hydrochloric acid 0.5～12% (volume percent), 98% industrial sulphuric acid 0.5～8% (volume percent), 98% industrial ethanedioic acid 0.3～2.5% (weight/volume percent).
The add-on of said oxygenant is: chlorinated lime 0.2～1% (weight/volume percent), hydrogen peroxide 0.1～1% (volume percent), clorox 0.2～2.5% (weight/volume percent).
The add-on of said sorbent material is: Tai-Ace S 150 0.5～15% (weight/volume percent), poly water glass 2～11% (weight/volume percent), alum 0.5～12% (weight/volume percent), gypsum 2～45% (weight/volume percent), magnesium oxide 2～15% (weight/volume percent).
A kind for the treatment of waste mud of drilling well by harmless process of the present invention, according to the feature of discarded slurry own, adopt chemically treated method, with lower expense the objectionable impurities in the mud is handled one by one, made the leach liquor (by the preparation of GB5086 regulation) of drilling well discarded slurry cured article reach the GB8978-1996 integrated wastewater discharge standard.Waste after the processing is equivalent to the chemical physics performance of pan soil after for some time.One deck planting soil is covered on the surface, or waste mixes by a certain percentage with planting soil, can satisfy the requirement of plant-growth fully.Reached solution discarded slurry processing costs height fully, the goal of the invention of problem of environmental pollution.The test in place result of use is as follows:
| Well location | Lotus flower 1-1 | Mound Xi16Jing | Chi63Jing |
| The mud that uses during drilling well | Polymkeric substance is water base | Poly-sulphur mud | Polymkeric substance is water base |
| Detected result after the processing | Up to standard | Up to standard | Up to standard |
Embodiment
For further disclosing technical scheme of the present invention, existing combination is implemented to be described in further detail:
Embodiment 1: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add in the technical hydrochloric acid (volume percent) of discarded slurry volume 1.5% (31% concentration) and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
B, the chlorinated lime (weight/volume percent) that adds discarded slurry volume 0.2% in stirring are removed or are reduced organic content in the discarded slurry, reduce COD
CrAnd colourity, remove the sulfide in the mud;
C, add the moisture content in poly water glass (weight/volume percent) the absorption discarded slurry of discarded slurry volume 2% in stirring, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent, form powdery or blocks of solid to exosmosis.
Embodiment 2: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add in the industrial sulphuric acid (volume percent) of discarded slurry volume 0.8% (98% concentration) and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
B, the hydrogen peroxide (volume percent) that adds discarded slurry volume 0.1% in stirring are removed or are reduced organic content in the discarded slurry, reduce COD
CrAnd colourity, remove the sulfide in the mud;
C, add the moisture content in Tai-Ace S 150 (weight/volume percent) the absorption discarded slurry of discarded slurry volume 0.5% in stirring, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent, form powdery or blocks of solid to exosmosis.
Embodiment 3: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add in the industrial ethanedioic acid (weight/volume percent) of discarded slurry volume 1.3% (98% concentration) and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
B, the clorox (weight/volume percent) that adds discarded slurry volume 0.2% in stirring are removed or are reduced organic content in the discarded slurry, reduce COD
CrAnd colourity, remove the sulfide in the mud;
C, add the moisture content in alum (weight/volume percent) the absorption discarded slurry of discarded slurry volume 0.5% in stirring, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent, form powdery or blocks of solid to exosmosis.
Embodiment 4: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add in the industrial ethanedioic acid (weight/volume percent) of discarded slurry volume 0.7% (98% concentration) and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
B, the chlorinated lime (weight/volume percent) that adds discarded slurry volume 0.2% in stirring are removed or are reduced organic content in the discarded slurry, reduce COD
CrAnd colourity, remove the sulfide in the mud;
C, add the moisture content in gypsum (weight/volume percent) the absorption discarded slurry of discarded slurry volume 2% in stirring, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent, form powdery or blocks of solid to exosmosis.
Embodiment 5: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add in the industrial ethanedioic acid (weight/volume percent) of discarded slurry volume 0.5% (98% concentration) and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
B, the chlorinated lime (weight/volume percent) that adds discarded slurry volume 0.2% in stirring are removed or are reduced organic content in the discarded slurry, reduce COD
CrAnd colourity, remove the sulfide in the mud;
C, add the moisture content in magnesium oxide (weight/volume percent) the absorption discarded slurry of discarded slurry volume 2% in stirring, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent, form powdery or blocks of solid to exosmosis.
Embodiment 6: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add in the technical hydrochloric acid (volume percent) of discarded slurry volume 12% (31% concentration) and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
B, the chlorinated lime (weight/volume percent) that adds discarded slurry volume 1% in stirring are removed or are reduced organic content in the discarded slurry, reduce COD
CrAnd colourity, remove the sulfide in the mud;
C, add the moisture content in poly water glass (weight/volume percent) the absorption discarded slurry of discarded slurry volume 11% in stirring, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent, form powdery or blocks of solid to exosmosis.
Embodiment 7: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add in the industrial sulphuric acid (volume percent) of discarded slurry volume 5% (98% concentration) and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
B, the hydrogen peroxide (volume percent) that adds discarded slurry volume 1% in stirring are removed or are reduced organic content in the discarded slurry, reduce COD
CrAnd colourity, remove the sulfide in the mud;
C, add the moisture content in poly water glass (weight percent) the absorption discarded slurry of discarded slurry volume 2% in stirring, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent, form powdery or blocks of solid to exosmosis.
Embodiment 8: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add in the industrial ethanedioic acid (weight/volume percent) of discarded slurry volume 2.5% (98% concentration) and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
B, the clorox (weight/volume percent) that adds discarded slurry volume 2.5% in stirring are removed or are reduced organic content in the discarded slurry, reduce COD
CrAnd colourity, remove the sulfide in the mud;
C, add the moisture content in alum (weight/volume percent) the absorption discarded slurry of discarded slurry volume 12% in stirring, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent, form powdery or blocks of solid to exosmosis.
Embodiment 9: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add in the industrial ethanedioic acid (weight/volume percent) of discarded slurry volume 2.5% (98% concentration) and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
B, the clorox (weight/volume percent) that adds discarded slurry volume 2.5% in stirring are removed or are reduced organic content in the discarded slurry, reduce COD
CrAnd colourity, remove the sulfide in the mud;
C, add the moisture content in gypsum (weight/volume percent) the absorption discarded slurry of discarded slurry volume 45% in stirring, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent, form powdery or blocks of solid to exosmosis.
Embodiment 10: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add in the industrial ethanedioic acid (weight/volume percent) of discarded slurry volume 2.5% (98% concentration) and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
B, the clorox (weight/volume percent) that adds discarded slurry volume 2.5% in stirring are removed or are reduced organic content in the discarded slurry, reduce COD
CrAnd colourity, remove the sulfide in the mud;
C, add the moisture content in magnesium oxide (weight/volume percent) the absorption discarded slurry of discarded slurry volume 15% in stirring, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent, form powdery or blocks of solid to exosmosis.
Embodiment 11: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add technical hydrochloric acid and the sodium hydroxide in the discarded slurry and the yellow soda ash of the industrial sulphuric acid (volume percent), 0.5% (31% concentration) of discarded slurry volume 5% (98% concentration), the metal ion in the complexing mud;
B, the chlorinated lime (weight/volume percent) that adds discarded slurry volume 0.2% in stirring, 1% clorox (weight/volume percent) is removed or reduce organic content in the discarded slurry, reduces COD
CrAnd colourity, remove the sulfide in the mud;
C, the alum (weight/volume percent) that adds discarded slurry volume 2% in stirring, the moisture content in 30% gypsum (weight/volume percent) the absorption discarded slurry, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent, form powdery or blocks of solid to exosmosis.
Embodiment 12: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add in industrial ethanedioic acid (weight/volume percent), 0.8% (31% concentration) technical hydrochloric acid of discarded slurry volume 2% (98% concentration) and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
B, the clorox (weight/volume percent) that adds discarded slurry volume 1% in stirring, 0.8% chlorinated lime (weight/volume percent) is removed or reduce organic content in the discarded slurry, reduces COD
CrAnd colourity, remove the sulfide in the mud;
C, the Tai-Ace S 150 (weight/volume percent) that adds discarded slurry volume 5% in stirring, the moisture content in 8% magnesium oxide (weight/volume percent) the absorption discarded slurry, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent to exosmosis, form powdery or blocks of solid.
Embodiment 13: the step of the drilling well discarded slurry being carried out method for innocent treatment is as follows:
A, in suction pit, stir to add in the industrial sulphuric acid of industrial ethanedioic acid (weight/volume percent), 0.6% (98% concentration) of discarded slurry volume 1% (98% concentration) and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
B, the hydrogen peroxide (volume percent) that adds discarded slurry volume 0.5% in stirring, 0.8% chlorinated lime (weight percent) is removed or reduce organic content in the discarded slurry, reduces COD
CrAnd colourity, remove the sulfide in the mud;
C, the Tai-Ace S 150 (weight/volume percent) that adds discarded slurry volume 6% in stirring, the moisture content in 6% poly water glass (weight/volume percent) the absorption discarded slurry, destroy the emulsion balance of discarded slurry, change mud property, stop pollutent to exosmosis, form powdery or blocks of solid.
Claims (4)
1, a kind for the treatment of waste mud of drilling well by harmless process, its concrete steps are as follows:
(1) in suction pit, stir to add in hydrochloric acid or sulfuric acid or the oxalic acid at least a industrial acids and sodium hydroxide and yellow soda ash in the discarded slurry, the metal ion in the complexing mud;
(2) add at least a oxygenant in chlorinated lime or hydrogen peroxide or the clorox in stirring and remove or reduce organic content in the discarded slurry, reduce COD
CrAnd colourity, remove the sulfide in the mud;
(3) add the moisture content at least a adsorbents adsorb discarded slurry in poly water glass or Tai-Ace S 150 or alum or terra alba or the magnesium oxide in the stirring, the adhesive solidification discarded slurry stops pollutent to exosmosis, forms powdery or blocks of solid.
2, according to the said a kind for the treatment of waste mud of drilling well by harmless process of claim 1, it is characterized in that: the add-on of said industrial acids is: 31% technical hydrochloric acid 0.5～12% (volume percent), 98% industrial sulphuric acid 0.5～8% (volume percent), 98% industrial ethanedioic acid 0.3～2.5% (weight/volume percent).
3, according to the said a kind for the treatment of waste mud of drilling well by harmless process of claim 1, it is characterized in that: the add-on of said oxygenant is: chlorinated lime 0.2～1% (weight/volume percent), hydrogen peroxide 0.1～1% (volume percent), clorox 0.2～2.5% (weight/volume percent).
4, according to the said a kind for the treatment of waste mud of drilling well by harmless process of claim 1, it is characterized in that: the add-on of said sorbent material is: Tai-Ace S 150 0.5～15% (weight/volume percent), poly water glass 2～11% (weight/volume percent), alum 0.5～12% (weight/volume percent), gypsum 2～45% (weight/volume percent), magnesium oxide 2～15% (weight/volume percent).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100220083A CN100418647C (en) | 2006-09-30 | 2006-09-30 | Method for treating waste mud of drilling well by harmless process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100220083A CN100418647C (en) | 2006-09-30 | 2006-09-30 | Method for treating waste mud of drilling well by harmless process |
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| Publication Number | Publication Date |
|---|---|
| CN1944280A true CN1944280A (en) | 2007-04-11 |
| CN100418647C CN100418647C (en) | 2008-09-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5108226A (en) * | 1990-10-18 | 1992-04-28 | Mobil Oil Corporation | Technique for disposal of drilling wastes |
| US5430237A (en) * | 1993-03-19 | 1995-07-04 | Sharp; Terry F. | Method of solidifying oil field waste |
| CN1156345C (en) * | 2002-04-08 | 2004-07-07 | 黄大军 | Harmless treating and resource utilizing method for waste salt-containing drilling slurry in oil field |
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