CN104628324A - Agent and method for harmless gelation treatment of well cuttings - Google Patents
Agent and method for harmless gelation treatment of well cuttings Download PDFInfo
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- CN104628324A CN104628324A CN201510074737.2A CN201510074737A CN104628324A CN 104628324 A CN104628324 A CN 104628324A CN 201510074737 A CN201510074737 A CN 201510074737A CN 104628324 A CN104628324 A CN 104628324A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses an agent for harmless gelation treatment of well cuttings. The agent comprises the following raw materials in parts by weight: silicate, cement, aluminum salt, additives, calcium sulfide, a strength accelerator, a plasticizer, sodium phosphate, sodium sulfide and a stability-breaking gel. The agent for gelation treatment has the advantages of short curing period, high consolidation strength, high consolidation elimination capability to harmful substances, and high washing and soaking resistance. The agent can be used for curing the well cuttings relatively low in moisture content, and also can be used for curing in a water soaking environment in which the cuttings are extremely high in moisture content to achieve the same good effect; the time of waiting on cement setting is extremely short; people can walk on the cured cuttings 18 hours later after curing; the cured cuttings are capable of having the cement brick hardness after being placed for about 3 days, and capable of having the clay brick hardness in about 6 days. The cured well cuttings can be applied to the backfill construction of a well site, and therefore, the earthwork cost can be saved, furthermore, the hidden danger of pollution accidents is eliminated, the oilfield ecologic environment is protected, and the investment is also saved. The agent has good economic benefit and environment benefit.
Description
Technical field
The present invention relates to a kind of liquid waste disposal technique, the reagent combination of the particularly innoxious gelling process of a kind of well drilling detritus and using method.
Background technology
Well drilling detritus is wherein one of principal pollutant, well drilling detritus is the heterogeneous colloidal dispersion of a kind of argillaceous, high-density weighting material, various chemical processing agent, sump oil and drilling cuttings, if do not processed, any discharge, or manage, deal with improperly, all can cause immeasurable harm to periphery people, animal and physical environment.Now main employing at present is landwaste innoxious curing technology on the spot, because the landwaste system that uses in drilling process changes along with the difference of block and well depth, containing different compositions in different landwaste system, therefore pollutant component in landwaste is discarded in the drilling well produced and quantity also can change, fixing curing process to be applicable to all landwaste systems, and the kind of its curing formula Chinese medicine and proportioning etc. all corresponding change can occur.Special desirable not to the utmost for the well drilling detritus treatment effect of part Special section, longer, hardness satisfaction not set time, later stage leach liquor COD the index such as colourity or be in the state of exceeding standard.The solidification technology of current well drilling detritus is mainly based on solid phase particles a large amount of in landwaste mud, the chemical agent adding a certain amount of correspondence in well drilling detritus carries out brokenly steady degumming process to it, violent hydration reaction is there is respectively in medicament with moisture wherein, be cross-linked with organism and solid phase particles and flocculate, form the aquation flocculation system of solid phase-solidifying agent-water, by from the effect of cementing conjunction encapsulate, change the molten solid water compound of liquid into, through hardening gradually after a period of time, useless landwaste is made to transfer solid (the false soil of namely what is often called) as soil to, and the objectionable constituent in landwaste are changed in the short period of time, close, fixed action, prevent migration, with the object reaching the leach liquor flowing of restriction well drilling detritus and suppress its components migrate to spread, avoid metal ion in well drilling detritus and organism to water body, the impact of soil and ecotope and harm reach antipollution object.Expected effects can be reached in the well drilling detritus curing formula adopted on the market at present, but its reagent combination has great specificity, because the geologic framework mineral products composition in each area in drilling process has very large difference, this makes the drilling fluid composition system used in drilling process have very large difference, along with the well depth difference of probing, drilling fluid also can be different simultaneously, thus make each local well drilling detritus produced have distincter uniqueness, owing to containing different compositions in landwaste system, therefore the pollutant component in the well drilling detritus produced and quantity also can change, this just significantly limit the result of use of drilling well curing formula, fixing curing process to be applicable to all landwaste systems, all can there is corresponding change in the kind of its curing formula Chinese medicine and proportioning etc.Special desirable not to the utmost for the well drilling detritus treatment effect of part Special section, longer, hardness satisfaction not set time, later stage leach liquor COD the index such as colourity or be in the state of exceeding standard.Generally speaking there is following several respects shortcoming: 1, limitation is very strong, and the well drilling detritus of reagent combination to required process has great specificity; 2, experimental cost is high, owing to having very strong specificity, before the preparation of each solidification medicament, most of the time financial resources all will be spent to do cure test to mix optimum formula to handling object; 3, set time is longer, reaches the time required for certain degree of hardness relatively long after landwaste mixes with medicament; 4, hardness is inadequate, and after landwaste solidification, hardness is relatively poor; 5, part index number is still had for leach liquor after the solidification of some areas landwaste to exceed standard.
Summary of the invention
In view of this, the object of the present invention is to provide reagent combination and the treatment process of the innoxious gelling process of a kind of well drilling detritus, adopt the curing cycle time of the reagent combination of this gelling process short, consolidation strength is high, ability is eliminated to the consolidation of objectionable impurities strong simultaneously, resistance to erosion immersion property is high, directly solves the problem that leach liquor is not up to standard.
The reagent combination of the innoxious gelling process of well drilling detritus of the present invention, described formula material comprises following component by weight: silicate 2-10 part, cement 3-12 part, aluminium salt 1-5.5 part, additive 1.5-7.8 part, calcium sulfate 1.25-6.58 part, agent 0.0001-0.01 part of promoting the strong, fluidizer 0.0001-0.1 part, sodium phosphate 0.1-1.5 part, sodium sulphite 0.0005-0.01 part, broken steady gelifying agent 0.5-5.5 part;
Further, described formula material comprises following component by weight: silicate 5.7 parts, cement 6.10 parts, aluminium salt 2.3 parts, additive 4.7 parts, 2.75 parts, calcium sulfate, agent 0.003 part of promoting the strong, fluidizer 0.007 part, sodium phosphate 0.45 part, 0.003 part, sodium sulphite, broken steady gelifying agent 2.2 parts;
Further, described additive is one or more mixtures in coal slag, white lime, charcoal ash, calcium carbonate, sodium carbonate;
Further, described silicate is one or more mixtures of water glass, Calucium Silicate powder, potassium silicate;
Further, described aluminium salt is aluminium sesquioxide;
Further, agent of promoting the strong described in is the mixture of calcium chloride, cobalt chloride, ammonium chloride, Repone K, sodium carbonate, sodium-chlor, magnesium chloride;
Further, described fluidizer is one or more mixtures in phthalic acid two (2-ethyl hexyl) ester, dioctyl phthalate (DOP), dinoctyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, Di Iso Decyl Phthalate;
Further, described broken steady gelifying agent is the mixture of Potassium Monopersulfate, Trisodium Citrate, bodied ferric sulfate, polymerize aluminum chloride, sodium-chlor, initial set catalyzer;
Further, described initial set catalyzer is the mixture of Tai-Ace S 150, ferric sulfate, Mierocrystalline cellulose, calcium hydroxide, sodium-chlor, Repone K.
The present invention also discloses the method for the innoxious gelling process of a kind of well drilling detritus, comprises the following steps: a. is real
Take appropriate landwaste and carry out experiment and detect the indexs such as leach liquor water quality, hardness;
B. according to the addition of heavy metal content in drilling fluid composition and geological and mineral situation determination sodium sulphite on the spot;
C. measuring and calculating needs the cuttings density of solidification and the landwaste amount of volume and needs solidification;
D. carry out medicament weighing according to landwaste amount and carry out landwaste curing operation: being first added to aqueous solution state by sodium sulphite needs to solidify the solid matter generating non-toxic stable state in landwaste with a large amount of heavy metal in landwaste and other part toxic substance association reactions, then add the broken steady gelifying agent of aqueous solution state, finally silicate, cement, aluminium salt, additive, calcium sulfate, agent of promoting the strong, fluidizer, sodium phosphate are added to solid powdery in the landwaste needing solidification.
Beneficial effect of the present invention: the reagent combination of the innoxious gelling process of well drilling detritus of the present invention and method, adopt the curing cycle time of the reagent combination of this gelling process short, consolidation strength is high, ability is eliminated to the consolidation of objectionable impurities strong simultaneously, resistance to erosion immersion property is high, bodied ferric sulfate+polymerize aluminum chloride: the colloidal dispersion destroying waste liquid of drilling, make it unstability dehydration, and with water generation hydration reaction wherein, occur crosslinked with solid phase particles and organism, hydrate and cross-linking agent interact and form cohesion-crystallizing system; Fluidizer: form condensation cross-linking body, promotes the stable of hydrate, can realize mutual intersection, even liter and form continuous print space net structure; Silicate+cement+aluminium salt (aluminium sesquioxide)+white lime+calcium sulfate: under the effect of exciting agent calcium sulfate, silicate, cement, aluminium salt (aluminium sesquioxide), white lime promote rapidly the crystallization of hydrate, the degree of order of structure is reduced, accelerate the tight filling of hydrate and solid phase particles, interior bag consumes free water, makes it to volatilize as early as possible and accelerates cured body formation; Sodium sulfate: in conjunction with the heavy metal component in landwaste and other part toxic substances, reaction generates nontoxic solid particulate; Potassium Monopersulfate+Trisodium Citrate: organic substance residual in landwaste is combined, and carries out chemical reaction, makes organic molecule be mineralized into water, carbonic acid gas or directly change into nontoxic small-molecule substance; To promote the strong agent: the degree of order of coherent structure is further reduced, accelerate hydrate and the tight filling of solid phase particles, make the landwaste block hardness after solidification better; Initial set catalyzer: the effect broken steady gel in flow process being played to a catalysis acceleration, reduces set time and curing time; The landwaste that can not only be directed to moisture content less is cured, and also can solidify in the moisture serious water logging environment of landwaste and reach same good result, curing time is extremely short, just can above People's Bank of China walk after 18th hour after fixed line, static stacking can reach cement brick hardness in about 3 days, reaches the hardness of clay brick at about the 6th day.Build well site in order to backfill after well drilling detritus solidification treatment, can earthwork cost be saved, and eliminate pollution incident hidden danger, protect oil field ecotope, also save investment, there is good economic benefit and environmental benefit.
Embodiment
The reagent combination of the innoxious gelling process of well drilling detritus of the present embodiment, described formula material comprises following component by weight: silicate 2-10 part, cement 3-12 part, aluminium salt 1-5.5 part, additive 1.5-7.8 part, calcium sulfate 1.25-6.58 part, agent 0.0001-0.01 part of promoting the strong, fluidizer 0.0001-0.1 part, sodium phosphate 0.1-1.5 part, sodium sulphite 0.0005-0.01 part, broken steady gelifying agent 0.5-5.5 part;
In the present embodiment, described formula material comprises following component by weight: silicate 5.7 parts, cement 6.10 parts, aluminium salt 2.3 parts, additive 4.7 parts, 2.75 parts, calcium sulfate, agent 0.003 part of promoting the strong, fluidizer 0.007 part, sodium phosphate 0.45 part, 0.003 part, sodium sulphite, broken steady gelifying agent 2.2 parts;
In the present embodiment, described additive is one or more mixtures in coal slag, white lime, charcoal ash, calcium carbonate, sodium carbonate;
In the present embodiment, described silicate is one or more mixtures of water glass, Calucium Silicate powder, potassium silicate; Water glass+cement+aluminium sesquioxide+white lime+calcium sulfate: under the effect of exciting agent calcium sulfate, water glass, cement, aluminium sesquioxide, white lime promote rapidly the crystallization of hydrate, the degree of order of structure is reduced, accelerate the tight filling of hydrate and solid phase particles, interior bag consumes free water, makes it to volatilize as early as possible and accelerates cured body formation.
In the present embodiment, described aluminium salt is aluminium sesquioxide;
In the present embodiment, described in promote the strong the mixture that agent is calcium chloride, cobalt chloride, ammonium chloride, Repone K, sodium carbonate, sodium-chlor, magnesium chloride mix according to a certain percentage; The degree of order of coherent structure is further reduced, accelerates the tight filling of hydrate and solid phase particles, make the landwaste block hardness after solidifying better.
In the present embodiment, described fluidizer is one or more mixtures in phthalic acid two (2-ethyl hexyl) ester, dioctyl phthalate (DOP), dinoctyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, Di Iso Decyl Phthalate; Form condensation cross-linking body, promote the stable of hydrate, mutual intersection, even liter can be realized and form continuous print space net structure.
In the present embodiment, described broken steady gelifying agent is the mixture of Potassium Monopersulfate, Trisodium Citrate, bodied ferric sulfate, polymerize aluminum chloride, sodium-chlor, initial set catalyzer; Bodied ferric sulfate+polymerize aluminum chloride: destroy the colloidal dispersion of waste liquid of drilling, makes it unstability dehydration, and with water generation hydration reaction wherein, occurs to be cross-linked with solid phase particles and organism, hydrate and cross-linking agent interact and form cohesion-crystallizing system; Potassium Monopersulfate+Trisodium Citrate: organic substance residual in landwaste is combined, and carries out chemical reaction, makes organic molecule be mineralized into water, carbonic acid gas or directly change into nontoxic small-molecule substance.
The mixture that in the present embodiment, described initial set catalyzer is Tai-Ace S 150, ferric sulfate, Mierocrystalline cellulose, calcium hydroxide, sodium-chlor, Repone K mix according to a certain percentage; Initial set catalyzer: the effect broken steady gel in flow process being played to a catalysis acceleration, reduces set time and curing time.
The present embodiment also discloses the method for the innoxious gelling process of a kind of well drilling detritus, comprises the following steps: a.
Take appropriate landwaste on the spot and carry out the indexs such as experiment detection leach liquor water quality, hardness;
B. according to the addition of heavy metal content in drilling fluid composition and geological and mineral situation determination sodium sulphite on the spot;
C. measuring and calculating needs the cuttings density of solidification and the landwaste amount of volume and needs solidification;
D. carry out medicament weighing according to landwaste amount and carry out landwaste curing operation: being first added to aqueous solution state by sodium sulphite needs to solidify the solid matter generating non-toxic stable state in landwaste with a large amount of heavy metal in landwaste and other part toxic substance association reactions, then the broken steady gelifying agent of aqueous solution state is added, make its mineralising with inner organism association reaction or change into nontoxic small molecules, flocculation agent will make the colloid-stabilised system of landwaste destroy and accelerate cohesion, initial set catalyzer is wherein that subsequent cure provides powerful power, accelerate curing speed, finally by silicate, cement, aluminium salt, additive, calcium sulfate, to promote the strong agent, fluidizer, sodium phosphate is added in the landwaste needing solidification with solid powdery, make emulsifying agent and inner greasy dirt fully in conjunction with emulsification, free state material composition makes finely ground particle substance tend to be combined to form macromolecular particle in conjunction with sclerosis by solidifying agent, the sclerosis of aggravation coagulation of materials.
Below by specific embodiment, the present invention is further elaborated.
Embodiment one
The reagent combination of the innoxious gelling process of well drilling detritus of the present embodiment, described formula material comprises following component by weight: silicate 5.7 parts, cement 6.10 parts, aluminium salt 2.3 parts, additive 4.7 parts, 2.75 parts, calcium sulfate, agent 0.003 part of promoting the strong, fluidizer 0.007 part, sodium phosphate 0.45 part, 0.003 part, sodium sulphite, broken steady gelifying agent 2.2 parts.
In the present embodiment, described additive is coal slag, by equivalent weight part described coal slag replaced with the one in white lime, charcoal ash, calcium carbonate, sodium carbonate, or replace with the mixture of coal slag and white lime, charcoal ash, calcium carbonate, sodium carbonate, all the reagent combination of the qualified innoxious gelling process of well drilling detritus, products obtained therefrom character is without significant difference.
In the present embodiment, described silicate is water glass, in the present embodiment, by equivalent weight part, water glass is replaced with the one of Calucium Silicate powder, potassium silicate, or the mixture of water glass and Calucium Silicate powder, potassium silicate is replaced with by equivalent weight part, all the reagent combination of the qualified innoxious gelling process of well drilling detritus, products obtained therefrom character is without significant difference.
In the present embodiment, described aluminium salt is aluminium sesquioxide.
In the present embodiment, described in agent of promoting the strong be the mixture of calcium chloride, cobalt chloride, ammonium chloride, Repone K, sodium carbonate, sodium-chlor, magnesium chloride; The degree of order of coherent structure is further reduced, accelerates the tight filling of hydrate and solid phase particles, make the landwaste block hardness after solidifying better.
In the present embodiment, described fluidizer is phthalic acid two (2-ethyl hexyl) ester, in the present embodiment, according to equivalent weight part, phthalic acid two (2-ethyl hexyl) ester is replaced with dioctyl phthalate (DOP), dinoctyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, one in Di Iso Decyl Phthalate, or replace with phthalic acid two (2-ethyl hexyl) ester and dioctyl phthalate (DOP) by equivalent weight part, dinoctyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, the mixture of Di Iso Decyl Phthalate, products obtained therefrom character is without significant difference, form condensation cross-linking body, promote the stable of hydrate, mutual intersection, even liter can be realized and form continuous print space net structure.
In the present embodiment, described broken steady gelifying agent is the mixture of Potassium Monopersulfate, Trisodium Citrate, bodied ferric sulfate, polymerize aluminum chloride, sodium-chlor, initial set catalyzer, and in broken steady gelifying agent, the weight percent of each component is 9.0% Potassium Monopersulfate, 2.5% Trisodium Citrate, 25.0% bodied ferric sulfate, 37.0% polymerize aluminum chloride, 5.0% sodium-chlor, 21.5% initial set catalyzer.Wherein, described initial set catalyzer is the mixture of Tai-Ace S 150, ferric sulfate, Mierocrystalline cellulose, calcium hydroxide, sodium-chlor, Repone K.
Embodiment two
The reagent combination of the innoxious gelling process of well drilling detritus of the present embodiment, described formula material comprises following component by weight: silicate 2 parts, cement 3 parts, aluminium salt 1 part, additive 1.5 parts, 1.25 parts, calcium sulfate, agent 0.0001 part of promoting the strong, fluidizer 0.0001 part, sodium phosphate 0.1 part, 0.0005 part, sodium sulphite, broken steady gelifying agent 0.5 part.
In the present embodiment, described additive is white lime, by equivalent weight part described white lime replaced with the one in coal slag, charcoal ash, calcium carbonate, sodium carbonate, or replace with the mixture of white lime and coal slag, charcoal ash, calcium carbonate, sodium carbonate, all the reagent combination of the qualified innoxious gelling process of well drilling detritus, products obtained therefrom character is without significant difference.
In the present embodiment, described silicate is Calucium Silicate powder, in the present embodiment, by equivalent weight part, Calucium Silicate powder is replaced with the one of water glass, potassium silicate, or the mixture of Calucium Silicate powder and water glass, potassium silicate is replaced with by equivalent weight part, all the reagent combination of the qualified innoxious gelling process of well drilling detritus, products obtained therefrom character is without significant difference.
In the present embodiment, described aluminium salt is aluminium sesquioxide.
In the present embodiment, described in agent of promoting the strong be the mixture of calcium chloride, cobalt chloride, ammonium chloride, Repone K, sodium carbonate, sodium-chlor, magnesium chloride; The degree of order of coherent structure is further reduced, accelerates the tight filling of hydrate and solid phase particles, make the landwaste block hardness after solidifying better.
In the present embodiment, described fluidizer is dioctyl phthalate (DOP), in the present embodiment, according to equivalent weight part, dioctyl phthalate (DOP) is replaced with phthalic acid two (2-ethyl hexyl) ester, dinoctyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, one in Di Iso Decyl Phthalate, or replace with dioctyl phthalate (DOP) and phthalic acid two (2-ethyl hexyl) ester by equivalent weight part, dinoctyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, the mixture of Di Iso Decyl Phthalate, products obtained therefrom character is without significant difference, form condensation cross-linking body, promote the stable of hydrate, mutual intersection, even liter can be realized and form continuous print space net structure.
In the present embodiment, described broken steady gelifying agent is the mixture of Potassium Monopersulfate, Trisodium Citrate, bodied ferric sulfate, polymerize aluminum chloride, sodium-chlor, initial set catalyzer, and in broken steady gelifying agent, the weight percent of each component is 12.0% Potassium Monopersulfate, 3% Trisodium Citrate, 20.0% bodied ferric sulfate, 34.0% polymerize aluminum chloride, 6.0% sodium-chlor, 25% initial set catalyzer.Wherein, described initial set catalyzer is the mixture of Tai-Ace S 150, ferric sulfate, Mierocrystalline cellulose, calcium hydroxide, sodium-chlor, Repone K.
Embodiment three
The reagent combination of the innoxious gelling process of well drilling detritus of the present embodiment, described formula material comprises following component by weight: silicate 10 parts, cement 12 parts, aluminium salt 5.5 parts, additive 7.8 parts, 6.58 parts, calcium sulfate, agent 0.01 part of promoting the strong, fluidizer 0.1 part, sodium phosphate 1.5 parts, 0.01 part, sodium sulphite, broken steady gelifying agent 5.5 parts.
In the present embodiment, described additive is charcoal ash, by equivalent weight part by grey for the described charcoal one replaced with in white lime, coal slag, calcium carbonate, sodium carbonate, or replace with charcoal ash with white lime, coal slag, calcium carbonate, sodium carbonate mixture, all the reagent combination of the qualified innoxious gelling process of well drilling detritus, products obtained therefrom character is without significant difference.
In the present embodiment, described silicate is potassium silicate, in the present embodiment, by equivalent weight part, potassium silicate is replaced with the one of Calucium Silicate powder, water glass, or the mixture of potassium silicate and Calucium Silicate powder, water glass is replaced with by equivalent weight part, all the reagent combination of the qualified innoxious gelling process of well drilling detritus, products obtained therefrom character is without significant difference.
In the present embodiment, described aluminium salt is aluminium sesquioxide.
In the present embodiment, described in agent of promoting the strong be the mixture of calcium chloride, cobalt chloride, ammonium chloride, Repone K, sodium carbonate, sodium-chlor, magnesium chloride; The degree of order of coherent structure is further reduced, accelerates the tight filling of hydrate and solid phase particles, make the landwaste block hardness after solidifying better.
In the present embodiment, described fluidizer is dinoctyl phthalate, in the present embodiment, according to equivalent weight part, dinoctyl phthalate is replaced with dioctyl phthalate (DOP), phthalic acid two (2-ethyl hexyl) ester, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, one in Di Iso Decyl Phthalate, or replace with dinoctyl phthalate and dioctyl phthalate (DOP) by equivalent weight part, phthalic acid two (2-ethyl hexyl) ester, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, the mixture of Di Iso Decyl Phthalate, products obtained therefrom character is without significant difference, form condensation cross-linking body, promote the stable of hydrate, mutual intersection, even liter can be realized and form continuous print space net structure.
In the present embodiment, described broken steady gelifying agent is the mixture of Potassium Monopersulfate, Trisodium Citrate, bodied ferric sulfate, polymerize aluminum chloride, sodium-chlor, initial set catalyzer, and in broken steady gelifying agent, the weight percent of each component is 5.0% Potassium Monopersulfate, 7.5% Trisodium Citrate, 30.0% bodied ferric sulfate, 32.0% polymerize aluminum chloride, 5.5% sodium-chlor, 20% initial set catalyzer.Wherein, described initial set catalyzer is the mixture of Tai-Ace S 150, ferric sulfate, Mierocrystalline cellulose, calcium hydroxide, sodium-chlor, Repone K.
Embodiment four
The reagent combination of the innoxious gelling process of well drilling detritus of the present embodiment, described formula material comprises following component by weight: silicate 2 parts, cement 12 parts, aluminium salt 1 part, additive 7.8 parts, 1.25 parts, calcium sulfate, agent 0.0001 part of promoting the strong, fluidizer 0.1 part, sodium phosphate 0.1 part, 0.01 part, sodium sulphite, broken steady gelifying agent 0.5 part.
In the present embodiment, described additive is calcium carbonate, by equivalent weight part described calcium carbonate replaced with the one in white lime, charcoal ash, coal slag, sodium carbonate, or replace with the mixture of calcium carbonate and white lime, charcoal ash, coal slag, sodium carbonate, all the reagent combination of the qualified innoxious gelling process of well drilling detritus, products obtained therefrom character is without significant difference.
In the present embodiment, described silicate is water glass, in the present embodiment, by equivalent weight part, water glass is replaced with the one of Calucium Silicate powder, potassium silicate, or the mixture of water glass and Calucium Silicate powder, potassium silicate is replaced with by equivalent weight part, all the reagent combination of the qualified innoxious gelling process of well drilling detritus, products obtained therefrom character is without significant difference.
In the present embodiment, described aluminium salt is aluminium sesquioxide.
In the present embodiment, described in agent of promoting the strong be the mixture of calcium chloride, cobalt chloride, ammonium chloride, Repone K, sodium carbonate, sodium-chlor, magnesium chloride; The degree of order of coherent structure is further reduced, accelerates the tight filling of hydrate and solid phase particles, make the landwaste block hardness after solidifying better.
In the present embodiment, described fluidizer is butyl benzyl phthalate, in the present embodiment, according to equivalent weight part, butyl benzyl phthalate is replaced with dioctyl phthalate (DOP), dinoctyl phthalate, phthalic acid two (2-ethyl hexyl) ester, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, one in Di Iso Decyl Phthalate, or replace with butyl benzyl phthalate and dioctyl phthalate (DOP) by equivalent weight part, dinoctyl phthalate, phthalic acid two (2-ethyl hexyl) ester, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, the mixture of Di Iso Decyl Phthalate, products obtained therefrom character is without significant difference, form condensation cross-linking body, promote the stable of hydrate, mutual intersection, even liter can be realized and form continuous print space net structure.
In the present embodiment, described broken steady gelifying agent is the mixture of Potassium Monopersulfate, Trisodium Citrate, bodied ferric sulfate, polymerize aluminum chloride, sodium-chlor, initial set catalyzer, and described initial set catalyzer is the mixture of Tai-Ace S 150, ferric sulfate, Mierocrystalline cellulose, calcium hydroxide, sodium-chlor, Repone K.
Embodiment five
The reagent combination of the innoxious gelling process of well drilling detritus of the present embodiment, described formula material comprises following component by weight: silicate 10 parts, cement 12 parts, aluminium salt 1 part, additive 1.5 parts, 6.58 parts, calcium sulfate, agent 0.0001 part of promoting the strong, fluidizer 0.1 part, sodium phosphate 0.1 part, 0.01 part, sodium sulphite, broken steady gelifying agent 0.5 part.
In the present embodiment, described additive is sodium carbonate, by equivalent weight part described sodium carbonate replaced with the one in white lime, charcoal ash, calcium carbonate, coal slag, or replace with the mixture of sodium carbonate and white lime, charcoal ash, calcium carbonate, coal slag, all the reagent combination of the qualified innoxious gelling process of well drilling detritus, products obtained therefrom character is without significant difference.
In the present embodiment, described silicate is potassium silicate, in the present embodiment, by equivalent weight part, potassium silicate is replaced with the one of Calucium Silicate powder, water glass, or the mixture of water glass and Calucium Silicate powder, potassium silicate is replaced with by equivalent weight part, all the reagent combination of the qualified innoxious gelling process of well drilling detritus, products obtained therefrom character is without significant difference.
In the present embodiment, described aluminium salt is aluminium sesquioxide.
In the present embodiment, described in agent of promoting the strong be the mixture of calcium chloride, cobalt chloride, ammonium chloride, Repone K, sodium carbonate, sodium-chlor, magnesium chloride; The degree of order of coherent structure is further reduced, accelerates the tight filling of hydrate and solid phase particles, make the landwaste block hardness after solidifying better.
In the present embodiment, described fluidizer is di-sec-octyl phthalate, in the present embodiment, according to equivalent weight part, di-sec-octyl phthalate is replaced with dioctyl phthalate (DOP), dinoctyl phthalate, butyl benzyl phthalate, phthalic acid two (2-ethyl hexyl) ester, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, one in Di Iso Decyl Phthalate, or replace with di-sec-octyl phthalate and dioctyl phthalate (DOP) by equivalent weight part, dinoctyl phthalate, butyl benzyl phthalate, phthalic acid two (2-ethyl hexyl) ester, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, the mixture of Di Iso Decyl Phthalate, products obtained therefrom character is without significant difference, form condensation cross-linking body, promote the stable of hydrate, mutual intersection, even liter can be realized and form continuous print space net structure.
In the present embodiment, described broken steady gelifying agent is the mixture of Potassium Monopersulfate, Trisodium Citrate, bodied ferric sulfate, polymerize aluminum chloride, sodium-chlor, initial set catalyzer, and in broken steady gelifying agent, the weight percent of each component is 12.0% Potassium Monopersulfate, 5.5% Trisodium Citrate, 22.0% bodied ferric sulfate, 40.0% polymerize aluminum chloride, 2.0% sodium-chlor, 18.5% initial set catalyzer.Wherein, described initial set catalyzer is the mixture of Tai-Ace S 150, ferric sulfate, Mierocrystalline cellulose, calcium hydroxide, sodium-chlor, Repone K.
Embodiment six
The reagent combination of the innoxious gelling process of well drilling detritus of the present embodiment, described formula material comprises following component by weight: silicate 5.7 parts, cement 3 parts, aluminium salt 2.3 parts, additive 7.8 parts, 2.75 parts, calcium sulfate, agent 0.0001 part of promoting the strong, fluidizer 0.007 part, sodium phosphate 1.5 parts, 0.003 part, sodium sulphite, broken steady gelifying agent 5.5 parts.
In the present embodiment, described additive is calcium carbonate, by equivalent weight part described calcium carbonate replaced with the one in white lime, charcoal ash, coal slag, sodium carbonate, or replace with the mixture of calcium carbonate and white lime, charcoal ash, coal slag, sodium carbonate, all the reagent combination of the qualified innoxious gelling process of well drilling detritus, products obtained therefrom character is without significant difference.
In the present embodiment, described silicate is water glass, in the present embodiment, by equivalent weight part, water glass is replaced with the one of Calucium Silicate powder, potassium silicate, or the mixture of water glass and Calucium Silicate powder, potassium silicate is replaced with by equivalent weight part, all the reagent combination of the qualified innoxious gelling process of well drilling detritus, products obtained therefrom character is without significant difference.
In the present embodiment, described aluminium salt is aluminium sesquioxide.
In the present embodiment, described in agent of promoting the strong be the mixture of calcium chloride, cobalt chloride, ammonium chloride, Repone K, sodium carbonate, sodium-chlor, magnesium chloride; The degree of order of coherent structure is further reduced, accelerates the tight filling of hydrate and solid phase particles, make the landwaste block hardness after solidifying better.
In the present embodiment, described fluidizer is dicyclohexyl phthalate, in the present embodiment, according to equivalent weight part, dicyclohexyl phthalate is replaced with dioctyl phthalate (DOP), dinoctyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, phthalic acid two (2-ethyl hexyl) ester, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, one in Di Iso Decyl Phthalate, or replace with dicyclohexyl phthalate and dioctyl phthalate (DOP) by equivalent weight part, dinoctyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, phthalic acid two (2-ethyl hexyl) ester, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, the mixture of Di Iso Decyl Phthalate, products obtained therefrom character is without significant difference, form condensation cross-linking body, promote the stable of hydrate, mutual intersection, even liter can be realized and form continuous print space net structure.
In the present embodiment, described broken steady gelifying agent is the mixture of Potassium Monopersulfate, Trisodium Citrate, bodied ferric sulfate, polymerize aluminum chloride, sodium-chlor, initial set catalyzer, and described initial set catalyzer is the mixture of Tai-Ace S 150, ferric sulfate, Mierocrystalline cellulose, calcium hydroxide, sodium-chlor, Repone K.
Embodiment seven
The method of the innoxious gelling process of well drilling detritus of the present embodiment, comprises the following steps: a. takes on the spot
Appropriate landwaste carries out experiment and detects the indexs such as leach liquor water quality, hardness;
B. according to the addition of heavy metal content in drilling fluid composition and geological and mineral situation determination sodium sulphite on the spot;
C. measuring and calculating needs the cuttings density of solidification and the landwaste amount of volume and needs solidification;
D. carry out medicament weighing according to landwaste amount and carry out landwaste curing operation: being first added to aqueous solution state by sodium sulphite needs to solidify the solid matter generating non-toxic stable state in landwaste with a large amount of heavy metal in landwaste and other part toxic substance association reactions, then the broken steady gelifying agent of aqueous solution state is added, make its mineralising with inner organism association reaction or change into nontoxic small molecules, flocculation agent will make the colloid-stabilised system of landwaste destroy and accelerate cohesion, initial set catalyzer is wherein that subsequent cure provides powerful power, accelerate curing speed, finally by silicate, cement, aluminium salt, additive, calcium sulfate, to promote the strong agent, fluidizer, sodium phosphate is added in the landwaste needing solidification with solid powdery, make emulsifying agent and inner greasy dirt fully in conjunction with emulsification, free state material composition makes finely ground particle substance tend to be combined to form macromolecular particle in conjunction with sclerosis by solidifying agent, the sclerosis of aggravation coagulation of materials.
Through scene, industrialized experiment shows on the spot: the landwaste that this solidification medicament can not only be directed to moisture content less is cured, and also can solidify in the moisture serious water logging environment of landwaste and reach same good result, curing time is extremely short, after fixed line, the 18th littlely just can above People's Bank of China walk constantly, static stacking can reach cement brick hardness after 3 days, reached the hardness of clay brick the 6th day time.Build well site in order to backfill after well drilling detritus solidification treatment, can earthwork cost be saved, and eliminate pollution incident hidden danger, protect oil field ecotope, also save investment, there is good economic benefit and environmental benefit.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a reagent combination for the innoxious gelling process of well drilling detritus, is characterized in that: described formula material comprises following component by weight: silicate 2-10 part, cement 3-12 part, aluminium salt 1-5.5 part, additive 1.5-7.8 part, calcium sulfate 1.25-6.58 part, agent 0.0001-0.01 part of promoting the strong, fluidizer 0.0001-0.1 part, sodium phosphate 0.1-1.5 part, sodium sulphite 0.0005-0.01 part, broken steady gelifying agent 0.5-5.5 part.
2. the reagent combination of the innoxious gelling process of well drilling detritus according to claim 1, is characterized in that: described formula material comprises following component by weight: silicate 5.7 parts, cement 6.10 parts, aluminium salt 2.3 parts, additive 4.7 parts, 2.75 parts, calcium sulfate, agent 0.003 part of promoting the strong, fluidizer 0.007 part, sodium phosphate 0.45 part, 0.003 part, sodium sulphite, broken steady gelifying agent 2.2 parts.
3. the reagent combination of the innoxious gelling process of well drilling detritus according to claim 2, is characterized in that: described additive is one or more mixtures in coal slag, white lime, charcoal ash, calcium carbonate, sodium carbonate.
4. the reagent combination of the innoxious gelling process of well drilling detritus according to claim 3, is characterized in that: described silicate is one or more mixtures of water glass, Calucium Silicate powder, potassium silicate.
5. the reagent combination of the innoxious gelling process of well drilling detritus according to claim 4, is characterized in that: described aluminium salt is aluminium sesquioxide.
6. the reagent combination of the innoxious gelling process of well drilling detritus according to claim 5, is characterized in that: described in agent of promoting the strong be the mixture of calcium chloride, cobalt chloride, ammonium chloride, Repone K, sodium carbonate, sodium-chlor, magnesium chloride.
7. the reagent combination of the innoxious gelling process of well drilling detritus according to claim 6, is characterized in that: described fluidizer is one or more mixtures in phthalic acid two (2-ethyl hexyl) ester, dioctyl phthalate (DOP), dinoctyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate, dibutyl phthalate, diisobutyl phthalate, dimethyl phthalate, diethyl phthalate, diisononyl phthalate, Di Iso Decyl Phthalate.
8. the reagent combination of the innoxious gelling process of well drilling detritus according to claim 7, is characterized in that: described broken steady gelifying agent is the mixture of Potassium Monopersulfate, Trisodium Citrate, bodied ferric sulfate, polymerize aluminum chloride, sodium-chlor, initial set catalyzer.
9. the reagent combination of the innoxious gelling process of well drilling detritus according to claim 8, is characterized in that: described initial set catalyzer is the mixture of Tai-Ace S 150, ferric sulfate, Mierocrystalline cellulose, calcium hydroxide, sodium-chlor, Repone K.
10. a method for the innoxious gelling process of well drilling detritus, is characterized in that: comprise the following steps:
A. take appropriate landwaste on the spot and carry out the indexs such as experiment detection leach liquor water quality, hardness;
B. according to the addition of heavy metal content in drilling fluid composition and geological and mineral situation determination sodium sulphite on the spot;
C. measuring and calculating needs the cuttings density of solidification and the landwaste amount of volume and needs solidification;
D. carry out medicament weighing according to landwaste amount and carry out landwaste curing operation: being first added to aqueous solution state by sodium sulphite needs to solidify the solid matter generating non-toxic stable state in landwaste with a large amount of heavy metal in landwaste and other part toxic substance association reactions, then add the broken steady gelifying agent of aqueous solution state, finally silicate, cement, aluminium salt, additive, calcium sulfate, agent of promoting the strong, fluidizer, sodium phosphate are added to solid powdery in the landwaste needing solidification.
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| CN107840623A (en) * | 2017-11-29 | 2018-03-27 | 中国石油化工股份有限公司 | A kind of discarded slurry making burn-free bricks and preparation method thereof |
| CN110374529A (en) * | 2019-06-25 | 2019-10-25 | 四川广阳环保科技有限公司 | A kind of recovery and treatment method of well drilling detritus and products thereof and application |
| CN111410465A (en) * | 2020-04-26 | 2020-07-14 | 四川颐千石油工程有限公司 | Environment-friendly water-based rock debris curing agent and application thereof |
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| WO2021143549A1 (en) * | 2020-01-16 | 2021-07-22 | 四川格英达环保科技有限公司 | Harmless processing of sulfonated mud and drill cuttings dry solidified powder and preparation method thereof |
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