CN103992776A - Shearing-potentiation organic soil for drilling and preparation method thereof - Google Patents
Shearing-potentiation organic soil for drilling and preparation method thereof Download PDFInfo
- Publication number
- CN103992776A CN103992776A CN201410209411.1A CN201410209411A CN103992776A CN 103992776 A CN103992776 A CN 103992776A CN 201410209411 A CN201410209411 A CN 201410209411A CN 103992776 A CN103992776 A CN 103992776A
- Authority
- CN
- China
- Prior art keywords
- minutes
- parts
- organophilic clay
- temperature
- stir
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
-
- 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
- C09K8/02—Well-drilling compositions
- C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based
- C09K8/34—Organic liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention relates to a shearing-potentiation organic soil for drilling, belonging to the technical field of organobentonite modification in petrochemical industry. The preparation method comprises the following steps: preparing required amounts of bentonite, sodium carbonate, sodium hydroxide or potassium hydroxide into a bentonite suspension; preparing a bis-quaternary ammonium salt cationic surfactant, an auxiliary dispersant, a nonionic surfactant, white oil and water into a composite modifier emulsion; stirring with tetrabutylammonium bromide and other secondary modifiers at 60-80 DEG C for 60-120 minutes, drying, and pulverizing to obtain the shearing-potentiation organic soil for drilling. The shearing-potentiation organic soil for drilling has the advantages of favorable shearing-potentiation effect and high ratio of dynamic shear force, is more suitable to be used in an all-oil-base low-solid drilling fluid system, has favorable suspension and cutting carrying effects.
Description
Technical field
the present invention relates to organobentonite modification technology field in petrochemical complex, is that drilling well is with putting forward cut type organophilic clay and preparation method thereof.
Background technology
organophilic clay (also claiming organobentonite) is mostly carried out ion-exchange gained by the cation quaternary ammonium salt of different structure or organic solvent and the sodium bentonite with ion-exchange capacity, at all kinds of organic solvents, oils, in liquid resin, can form gel, there is good thickening property, thixotropy, suspension stability, high-temperature stability, oilness, film-forming properties, the characteristics such as water tolerance, synthetic at organic-inorganic nanocomposite materials, coating, weaving, ink, wastewater treatment, casting, high temperature grease, drilling well, daily cosmetics, agricultural chemicals, in the industry such as plastics and rubber, be widely used.Utilizing the synthetic organophilic clay of natural montmorillonite is the important channel of realizing its high value added utilization, broaden application field.
drilling well organophilic clay is indispensable integral part in oil base drilling fluid and well finishing liquid, mainly play and increase viscosity and shear force, the effect that suspends and carry drilling cuttings, in oil base drilling fluid and well finishing liquid, form suspension oleophylic colloid, the dosage by mass volume ratio in oil base drilling fluid and well finishing liquid mostly is 1%-5%.Present Domestic has had the enterprise of production organophilic clay and more research, uses research and the product of organophilic clay few but be applicable to drilling fluid, and major cause is that shear force and the viscosity of drilling well organophilic clay to organophilic clay has special requirement.Full oil base drilling fluid and not adding in barite low density drilling fluid, requires organophilic clay to have the higher ability of cutting and the ratio of dynamic shear force/yield value to plastic viscosity carried, and could meet the drilling cuttings that carries and suspend, and prevents the risk of sand setting bit freezing.Along with drilling well is to the deep-wells such as deep-well, ultra deep well and orientation well, horizontal well, underbalance well and special well development, full oil base drilling fluid and low-density oil base drilling fluid application demand are increasing, and drilling fluid just seems extremely important with putting forward cut type organophilic clay.
publication number is the Chinese patent literature of CN101942292A, publication number is that the Chinese patent literature of CN1003482638A and Chinese patent literature that publication number is CN101624535A disclose the research to drilling well oil base drilling fluid organophilic clay, although the high glue rate organophilic clay and preparation method thereof of making all adds the manufacture of quaternary surfactant employing wet method by sodium bentonite in the white oil that the bentonite manufacture method that publication number is CNCN1003482638AA at present and publication number are CN101624535A, but due to the feature of the monomer of its selection, with preparation process be mainly the ion-exchange of wilkinite edge and adsorption for the modification of organophilic clay, cause the ability of the suspension in use forming in oil to make glue rate higher, but be mixed with after oil base drilling fluid, yield value deficiency, the shortcomings such as ratio of dynamic shear force/yield value to plastic viscosity is on the low side.
Summary of the invention
the invention provides a kind of drilling well with putting forward cut type organophilic clay and preparation method thereof, overcome the deficiency of above-mentioned prior art, it can effectively solve current disclosed drilling well organophilic clay and in use have shear force deficiency, problem that ratio of dynamic shear force/yield value to plastic viscosity is low.
one of technical scheme of the present invention realizes by following measures: a kind of drilling well is with putting forward cut type organophilic clay, and its raw materials by weight portion comprises 60 parts to 70 parts of bentonite suspensions, 20 parts to 30 parts, twice-modified dose 10 parts to 20 parts of composite modified agent emulsions.
the further optimization and/or improvements to one of foregoing invention technical scheme below:
above-mentioned bentonite suspension is that mixing of fresh water forms by massfraction by 4 parts to 10 parts wilkinites, 2 parts to 6 parts soda ash, 1 part to 4 parts sodium hydroxide or potassium hydroxide, remaining integral part; Or/and composite modified agent emulsion is 20 parts to 30 parts of bis-quaternary ammonium salt cationic surfactants by massfraction, auxiliary 10-15 part, nonionic emulsifying agent 10-15 part, white oil 10-15 part, remaining integral part is that mixing of fresh water forms; Or/and twice-modified dose is one or more in TBAH, Tetrabutyl amonium bromide, tetrabutyl ammonium sulfide, polyoxyethylene ammonium chloride.
above-mentioned bis-quaternary ammonium salt cationic surfactant is one or more in DHAB, Varisoft 432PPG, two octadecyl trimethyl ammonium chloride, two Cetyltrimethylammonium bromide; Or/and auxiliary is the one in ethanol, acetone; Nonionic emulsifying agent is the one in OP-10, OP-4; White oil is one or more in 3# white oil, 4# white oil, 5# white oil, 10# white oil.
in above-mentioned bis-quaternary ammonium salt cationic surfactant, C atom can be replaced by S, N, P.
above-mentioned drilling well obtains as follows with putting forward cut type organophilic clay: the first step, in fresh water, adding successively potassium hydroxide or sodium hydroxide, soda ash is to stir 20 minutes to 30 minutes under 35 DEG C to 45 DEG C conditions in temperature after mixing, and adding wilkinite is under 35 DEG C to 45 DEG C conditions, to stir within 20 minutes to 30 minutes, to obtain bentonite suspension in temperature; Second step, it is under 35 DEG C to 45 DEG C conditions, to stir within 20 minutes to 30 minutes, to obtain first group of solution that bis-quaternary ammonium salt cationic surfactant is added in fresh water and in temperature; The 3rd step, to be incorporated in temperature be under 40 DEG C to 50 DEG C conditions, to stir within 20 minutes to 30 minutes, to obtain second group of solution by mixed to nonionic emulsifying agent, white oil; The 4th step, sneaks into second group of solution in first group of solution, and adds auxiliary simultaneously, is under 50 DEG C to 60 DEG C conditions, to stir within 60 minutes to 120 minutes, to obtain composite modified agent emulsion in temperature; The 5th step, under condition of normal pressure, adds bentonite suspension by composite modified agent emulsion and under temperature 50 C to 60 DEG C condition, stirs 120 minutes to 240 minutes; The 6th step, by twice-modified dose of product that joins the 5th step and stir 60 minutes to 120 minutes under temperature 60 C to 80 DEG C condition; The 7th step, obtains product crushed after being dried by the 6th step and obtain drilling well with putting forward cut type organophilic clay to particle diameter 100 order to 200 order powdery.
two of technical scheme of the present invention realizes by following measures: the preparation method who puies forward cut type organophilic clay for a kind of drilling well, undertaken by following subsidy: the first step, in fresh water, adding successively potassium hydroxide or sodium hydroxide, soda ash is to stir 20 minutes to 30 minutes under 35 DEG C to 45 DEG C conditions in temperature after mixing, and adding wilkinite is under 35 DEG C to 45 DEG C conditions, to stir within 20 minutes to 30 minutes, to obtain bentonite suspension in temperature; Second step, it is under 35 DEG C to 45 DEG C conditions, to stir within 20 minutes to 30 minutes, to obtain first group of solution that bis-quaternary ammonium salt cationic surfactant is added in fresh water and in temperature; The 3rd step, to be incorporated in temperature be under 40 DEG C to 50 DEG C conditions, to stir within 20 minutes to 30 minutes, to obtain second group of solution by mixed to nonionic emulsifying agent, white oil; The 4th step, sneaks into second group of solution in first group of solution, and adds auxiliary simultaneously, is under 50 DEG C to 60 DEG C conditions, to stir within 60 minutes to 120 minutes, to obtain composite modified agent emulsion in temperature; The 5th step, under condition of normal pressure, slowly adds bentonite suspension by composite modified agent emulsion and under temperature 50 C to 60 DEG C condition, stirs 120 minutes to 240 minutes; The 6th step, by twice-modified dose of product that joins the 5th step and stir 60 minutes to 120 minutes under temperature 60 C to 80 DEG C condition; The 7th step, obtains product crushed after being dried by the 6th step and obtain drilling well with putting forward cut type organophilic clay to particle diameter 100 order to 200 order powdery.Wherein this drilling well comprises 60 parts to 70 parts of bentonite suspensions, 20 parts to 30 parts, twice-modified dose 10 parts to 20 parts of composite modified agent emulsions with putting forward cut type organophilic clay raw materials by weight portion.
two the further optimization and/or improvements to foregoing invention technical scheme below:
above-mentioned bentonite suspension is that mixing of fresh water forms by massfraction by 4 parts to 10 parts wilkinites, 2 parts to 6 parts soda ash, 1 part to 4 parts sodium hydroxide or potassium hydroxide, remaining integral part; Or/and composite modified agent emulsion is 20 parts to 30 parts of bis-quaternary ammonium salt cationic surfactants by massfraction, auxiliary 10-15 part, nonionic emulsifying agent 10-15 part, white oil 10-15 part, remaining integral part is that mixing of fresh water forms; Or/and twice-modified dose is one or more in TBAH, Tetrabutyl amonium bromide, tetrabutyl ammonium sulfide, polyoxyethylene ammonium chloride.
above-mentioned bis-quaternary ammonium salt cationic surfactant is one or more in DHAB, Varisoft 432PPG, two octadecyl trimethyl ammonium chloride, two Cetyltrimethylammonium bromide; Or/and auxiliary is the one in ethanol, acetone; Nonionic emulsifying agent is the one in OP-10, OP-4; White oil is one or more in 3# white oil, 4# white oil, 5# white oil, 10# white oil.
in above-mentioned bis-quaternary ammonium salt cationic surfactant, C atom can be replaced by S, N, P.
three of technical scheme of the present invention realizes by following measures: a kind of drilling well is with putting forward cut type organophilic clay, and its raw materials by weight portion comprises 60 parts to 70 parts of bentonite suspensions, 20 parts to 30 parts, twice-modified dose 10 parts to 20 parts of composite modified agent emulsions.The bentonite suspension of aequum, composite modified agent emulsion, twice-modified dose are stirred 60 minutes to 120 minutes under temperature 60 C to 80 DEG C condition, after drying and crushing, be drilling well with putting forward cut type organophilic clay.
three of technical scheme of the present invention realizes by following measures: a kind of drilling well is with putting forward cut type organophilic clay, and its raw materials by weight portion comprises 60 parts to 70 parts of bentonite suspensions, 20 parts to 30 parts, twice-modified dose 10 parts to 20 parts of composite modified agent emulsions.The bentonite suspension of aequum, composite modified agent emulsion, twice-modified dose are stirred 60 minutes to 120 minutes under temperature 60 C to 80 DEG C condition, after drying and crushing, be drilling well with putting forward cut type organophilic clay.
three the further optimization and/or improvements to foregoing invention technical scheme below:
above-mentioned bentonite suspension is that mixing of fresh water forms by mass fraction by 4 parts to 10 parts wilkinites, 2 parts to 6 parts soda ash, 1 part to 4 parts sodium hydroxide or potassium hydroxide, remaining integral part; Or/and composite modified agent emulsion is 20 parts to 30 parts of bis-quaternary ammonium salt cationic surfactants by massfraction, auxiliary 10-15 part, nonionic emulsifying agent 10-15 part, white oil 10-15 part, remaining integral part is that mixing of fresh water forms; Or/and twice-modified dose is one or more in TBAH, Tetrabutyl amonium bromide, tetrabutyl ammonium sulfide, polyoxyethylene ammonium chloride.
above-mentioned bis-quaternary ammonium salt cationic surfactant is one or more in DHAB, Varisoft 432PPG, two octadecyl trimethyl ammonium chloride, two Cetyltrimethylammonium bromide; Or/and auxiliary is the one in ethanol, acetone; Nonionic emulsifying agent is the one in OP-10, OP-4; White oil is one or more in 3# white oil, 4# white oil, 5# white oil, 10# white oil.
four of technical scheme of the present invention realizes by following measures: the preparation method of organophilic clay for a kind of drilling fluid, carry out as follows: the bentonite suspension of aequum, composite modified agent emulsion, twice-modified dose are stirred 60 minutes to 120 minutes under temperature 60 C to 80 DEG C condition, after drying and crushing, be drilling well with putting forward cut type organophilic clay.Wherein: raw materials by weight portion comprises 60 parts to 70 parts of bentonite suspensions, 20 parts to 30 parts, twice-modified dose 10 parts to 20 parts of composite modified agent emulsions.
four the further optimization and/or improvements to foregoing invention technical scheme below:
above-mentioned bentonite suspension is that mixing of fresh water forms by mass fraction by 4 parts to 10 parts wilkinites, 2 parts to 6 parts soda ash, 1 part to 4 parts sodium hydroxide or potassium hydroxide, remaining integral part; Or/and composite modified agent emulsion is 20 parts to 30 parts of bis-quaternary ammonium salt cationic surfactants by massfraction, auxiliary 10-15 part, nonionic emulsifying agent 10-15 part, white oil 10-15 part, remaining integral part is that mixing of fresh water forms; Or/and twice-modified dose is one or more in TBAH, Tetrabutyl amonium bromide, tetrabutyl ammonium sulfide, polyoxyethylene ammonium chloride.
above-mentioned bis-quaternary ammonium salt cationic surfactant is one or more in DHAB, Varisoft 432PPG, two octadecyl trimethyl ammonium chloride, two Cetyltrimethylammonium bromide; Or/and auxiliary is the one in ethanol, acetone; Nonionic emulsifying agent is the one in OP-10, OP-4; White oil is one or more in 3# white oil, 4# white oil, 5# white oil, 10# white oil.
the present invention have carry cut effective, the feature that ratio of dynamic shear force/yield value to plastic viscosity is high, in white oil base drilling fluid, show excellent serviceability, be more suitable in the low solid phase oil base drilling fluid of full oil base drilling fluid and well finishing liquid and low density and completion fluid system, suspend and cutting carring ability successful.
Embodiment
the present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and practical situation.The water and the fresh water that in the present invention, use are tap water.
below in conjunction with embodiment, the invention will be further described:
embodiment 1: get 1g sodium hydroxide and 2g soda ash and add in 93g fresh water, stir 20 minutes to 30 minutes in 35 DEG C to 45 DEG C of temperature, add 4g wilkinite to stir and obtain bentonite suspension for 20 minutes to 30 minutes in 35 DEG C to 45 DEG C of temperature; Get DHAB 20g, add that 50g enters in fresh water and stir 20 minutes to 30 minutes to obtain first group of solution in 35 DEG C to 45 DEG C of temperature; Get respectively 10gOP-10 and 10g4# white oil and mix, in 40 DEG C to 50 DEG C of temperature, stir 20 minutes to 30 minutes to obtain second group of solution; Second group of solution is sneaked in first group of solution, and add 10g acetone, in temperature 50 C to 60 DEG C, stir and within 60 minutes to 120 minutes, obtain composite modified agent emulsion; Under condition of normal pressure, 20 parts of composite modified agent emulsions are slowly added in 60 parts of bentonite suspensions and in temperature 50 C to 60 DEG C, stir 120 minutes to 240 minutes after add 20 parts of polyoxyethylene ammonium chlorides, in temperature 60 C to 80 DEG C, stir 60 minutes to 120 minutes, obtain drilling well with putting forward cut type organophilic clay after being dried, being crushed to particle diameter 100 order to 200 order powderies.
embodiment 2: get 1g sodium hydroxide and 2g soda ash and add in 93g fresh water, stir 20 minutes to 30 minutes in 35 DEG C to 45 DEG C of temperature, add 4g wilkinite to stir and obtain bentonite suspension for 20 minutes to 30 minutes in 35 DEG C to 45 DEG C of temperature; Get Varisoft 432PPG 20g, add that 50g enters in fresh water and stir 20 minutes to 30 minutes to obtain first group of solution in 35 DEG C to 45 DEG C of temperature; Getting respectively 10gOP-10 and 10g4# white oil is blended in and in 40 DEG C to 50 DEG C of temperature, stirs 20 minutes to 30 minutes to obtain second group of solution; Second group of solution is sneaked in first group of solution, and add 10g acetone, in temperature 50 C to 60 DEG C, stir and within 60 minutes to 120 minutes, obtain composite modified agent emulsion; Under condition of normal pressure, 20 parts of composite modified agent emulsions are slowly added in 60 parts of bentonite suspensions and in temperature 50 C to 60 DEG C, stir 120 minutes to 240 minutes after add 20 parts of polyoxyethylene ammonium chlorides, in temperature 60 C to 80 DEG C, stir 60 minutes to 120 minutes, obtain drilling well with putting forward cut type organophilic clay after being dried, being crushed to particle diameter 100 order to 200 order powderies.
embodiment 3: get 1g sodium hydroxide and 2g soda ash and add in 93g fresh water, stir 20 minutes to 30 minutes in 35 DEG C to 45 DEG C of temperature, add 4g wilkinite to stir and obtain bentonite suspension for 20 minutes to 30 minutes in 35 DEG C to 45 DEG C of temperature; Get two octadecyl trimethyl ammonium chloride 20g, add that 50g enters in fresh water and stir 20 minutes to 30 minutes to obtain first group of solution in 35 DEG C to 45 DEG C of temperature; Getting respectively 10gOP-10 and 10g4# white oil is blended in and in 40 DEG C to 50 DEG C of temperature, stirs 20 minutes to 30 minutes to obtain second group of solution; Second group of solution is sneaked in first group of solution, and add 10g acetone, in temperature 50 C to 60 DEG C, stir and within 60 minutes to 120 minutes, obtain composite modified agent emulsion; Under condition of normal pressure, 20 parts of composite modified agent emulsions are slowly added in 60 parts of bentonite suspensions and in temperature 50 C to 60 DEG C, stir 120 minutes to 240 minutes after add 20 parts of polyoxyethylene ammonium chlorides, in temperature 60 C to 80 DEG C, stir 60 minutes to 120 minutes, obtain drilling well with putting forward cut type organophilic clay after being dried, being crushed to particle diameter 100 order to 200 order powderies.
embodiment 4: get 1g sodium hydroxide and 2g soda ash and add in 93g fresh water, stir 20 minutes to 30 minutes in 35 DEG C to 45 DEG C of temperature, add 4g wilkinite to stir and obtain bentonite suspension for 20 minutes to 30 minutes in 35 DEG C to 45 DEG C of temperature; Get two Cetyltrimethylammonium bromide 20g, add that 50g enters in fresh water and stir 20 minutes to 30 minutes to obtain first group of solution in 35 DEG C to 45 DEG C of temperature; Getting respectively 10gOP-10 and 10g4# white oil is blended in and in 40 DEG C to 50 DEG C of temperature, stirs 20 minutes to 30 minutes to obtain second group of solution; Second group of solution is sneaked in first group of solution, and add 10g acetone, in temperature 50 C to 60 DEG C, stir and within 60 minutes to 120 minutes, obtain composite modified agent emulsion; Under condition of normal pressure, 30 parts of composite modified agent emulsions are slowly added in 60 parts of bentonite suspensions and in temperature 50 C to 60 DEG C, stir 120 minutes to 240 minutes after add 10 parts of polyoxyethylene ammonium chlorides, in temperature 60 C to 80 DEG C, stir 60 minutes to 120 minutes, obtain drilling well with putting forward cut type organophilic clay after being dried, being crushed to particle diameter 100 order to 200 order powderies.
embodiment 5: get 1g sodium hydroxide and 2g soda ash and add in 93g fresh water, stir 20 minutes to 30 minutes in 35 DEG C to 45 DEG C of temperature, add 4g wilkinite to stir and obtain bentonite suspension for 20 minutes to 30 minutes in 35 DEG C to 45 DEG C of temperature; Get two Cetyltrimethylammonium bromide 20g, add that 50g enters in fresh water and stir 20 minutes to 30 minutes to obtain first group of solution in 35 DEG C to 45 DEG C of temperature; Getting respectively 10gOP-10 and 10g4# white oil is blended in and in 40 DEG C to 50 DEG C of temperature, stirs 20 minutes to 30 minutes to obtain second group of solution; Second group of solution is sneaked in first group of solution, and add 10g acetone, in temperature 50 C to 60 DEG C, stir and within 60 minutes to 120 minutes, obtain composite modified agent emulsion; Under condition of normal pressure, 20 parts of composite modified agent emulsions are slowly added in 70 parts of bentonite suspensions and in temperature 50 C to 60 DEG C, stir 120 minutes to 240 minutes after add 10 parts of polyoxyethylene ammonium chlorides, in temperature 60 C to 80 DEG C, stir 60 minutes to 120 minutes, obtain drilling well with putting forward cut type organophilic clay after being dried, being crushed to particle diameter 100 order to 200 order powderies.
the present invention selects taking the bis-quaternary ammonium salt cationic surfactant of C16 to C18 as ion-exchange and sorbent material, taking a kind of second adsorption agent of filling as between bentonite bed in Tetrabutyl amonium bromide, ammonium sulfide and polyoxyethylene ammonium chloride, by composite to bis-quaternary ammonium salt cationic surfactant and nonionic surface active agent, increase between bentonite bed and edge lipophilicity modified effect, under the dispersion of the auxiliarys such as acetone, modified effect is better, and what exchange, adsorb and cover is efficient higher.
to have shear force high with putting forward cut type organophilic clay for the drilling fluid obtaining according to the embodiment of the present invention, the characteristics such as ratio of dynamic shear force/yield value to plastic viscosity height, compare by organophilic clay with similar current existing drilling fluid, under equal formula dosage, yield value is high, plastic viscosity is low, the dosage that reaches same performance requirement is low, is more suitable for not adding the application in barite low density drilling fluid and completion fluid system at full oil base.
the drilling well obtaining according to the embodiment of the present invention is used and is proposed cut type organophilic clay and the measurement of existing drilling fluid organophilic clay to full oil base drilling fluid and well finishing liquid performance impact:
the preparation of full oil base drilling fluid and well finishing liquid: get the salt solution that 285ml5# white oil adds 15ml to contain 3g calcium chloride, add primary emulsion 7.5g, auxiliary emulsifying agent 4.5g, wetting agent 2.4g, fluid loss agent 9g, detailed catalogue calcium carbonate 15g, high-speed stirring 2h to 3h under the agitator of rotating speed 10000r/min.Its performance is in the 1# in table 1.
in the full oil base drilling fluid of preparing according to the method described above and well finishing liquid, add the drilling well that 9g obtains according to the embodiment of the present invention 1 to embodiment 5 to use the performance mean value of carrying after cut type organophilic clay in 2# to 6# in table 1; In the full oil base drilling fluid of preparing according to the method described above and well finishing liquid, add the performance mean value of the existing drilling well of 3g after organophilic clay in the 7# in table 1.
table 1: the impact of organophilic clay on full oil base drilling fluid and well finishing liquid performance
| Group number | AV（MPa·s） | PV（MPa·s） | YP（Pa） | YP/PV | Φ6/Φ3 | API(ml) | LSRV |
| 1# | 7.5 | 7 | 0.5 | 0.07 | 0/0 | 4.8 | 8625 |
| 2# | 27 | 22 | 5 | 0.23 | 2/1 | 2.4 | 17352 |
| 3# | 28 | 23 | 5 | 0.22 | 2/1 | 2.4 | 16265 |
| 4# | 31 | 24 | 7 | 0.29 | 3/2 | 1.6 | 26608 |
| 5# | 25 | 18 | 7 | 0.39 | 4/2 | 1.2 | 32684 |
| 6# | 28 | 22 | 6 | 0.27 | 3/2 | 1.8 | 22318 |
| 7# | 26 | 22 | 4 | 0.18 | 2/1 | 2.8 | 15924 |
note: in table 1, AV refers to apparent viscosity, PV refers to plastic viscosity, YP refers to yield value, YP/PV refers to ratio of dynamic shear force/yield value to plastic viscosity, and the fast rotational viscosimeter 6 of Φ 6 six turns reading, and the fast rotational viscosimeter 3 of Φ 3 six turns reading, API refers to press filtration vector in API, and above DATA REASONING standard is carried out GB/T16783.1-2006.LSRV refers to the viscosity numerical value under low shear rate, adopts Brookfield DV-II viscometer, and 3# rotor is used for measuring the viscosity numerical value under low shear rate under the condition of 0.3r/min.
as can be seen from Table 1, add after organophilic clay, apparent viscosity, plastic viscosity, yield value and Φ 6/ Φ 3 readings of full oil base drilling fluid and well finishing liquid obviously rise, and filter loss obviously declines.2# to 6# is the drilling well that obtains of the embodiment of the present invention 1 to embodiment 5 with the performance mean value after putting forward cut type organophilic clay and adding, and yield value is all high by organophilic clay than existing drilling well, and ratio of dynamic shear force/yield value to plastic viscosity, LSRV improve obviously, and in API, press filtration vector obviously reduces.Higher LSRV shows that Drilling and completion fluids has good suspension and cutting carring effect.
above technical characterictic has formed embodiments of the invention, and it has stronger adaptability and implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
the present invention relates to organobentonite modification technology field in petrochemical complex, is that a kind of drilling well is with putting forward cut type organophilic clay.The wilkinite of aequum, soda ash, sodium hydroxide or potassium hydroxide are mixed with to bentonite suspension; Bis-quaternary ammonium salt cationic surfactant, auxiliary dispersants, nonionogenic tenside and white oil, water are mixed with composite modified agent emulsion; Under temperature 60 C to 80 DEG C condition, stir 60 minutes to 120 minutes with twice-modified dose of Tetrabutyl amonium bromide etc., after drying and crushing, be drilling well with putting forward cut type organophilic clay.The present invention cuts effect in drilling well with having in oil base drilling fluid to carry preferably, and ratio of dynamic shear force/yield value to plastic viscosity is high, is more suitable for, in full oil base low solids fluid system, showing good suspension and carrying drilling cuttings effect.
Claims (7)
1. drilling well is with putting forward cut type organophilic clay, it is characterized in that raw material by volume umber comprise 60 parts to 70 parts of bentonite suspensions, 20 parts to 30 parts, twice-modified dose 10 parts to 20 parts of composite modified agent emulsions.
2. drilling well according to claim 1 is with putting forward cut type organophilic clay, it is characterized in that bentonite suspension is that mixing of fresh water forms by massfraction by 4 parts to 10 parts wilkinites, 2 parts to 6 parts soda ash, 1 part to 4 parts sodium hydroxide or potassium hydroxide, remaining integral part; Or/and composite modified agent emulsion is 20 parts to 30 parts of bis-quaternary ammonium salt cationic surfactants by massfraction, auxiliary 10-15 part, nonionic emulsifying agent 10-15 part, white oil 10-15 part, remaining integral part is that mixing of fresh water forms; Or/and twice-modified dose is one or more in TBAH, Tetrabutyl amonium bromide, tetrabutyl ammonium sulfide, polyoxyethylene ammonium chloride.
3. organophilic clay according to claim 1 and 2, it is characterized in that obtaining as follows: the first step, in fresh water, adding successively potassium hydroxide or sodium hydroxide, soda ash is to stir 20 minutes to 30 minutes under 35 DEG C to 45 DEG C conditions in temperature after mixing, and adding wilkinite is under 35 DEG C to 45 DEG C conditions, to stir within 20 minutes to 30 minutes, to obtain bentonite suspension in temperature; Second step, it is under 35 DEG C to 45 DEG C conditions, to stir within 20 minutes to 30 minutes, to obtain first group of solution that bis-quaternary ammonium salt cationic surfactant is added in fresh water and in temperature; The 3rd step, to be incorporated in temperature be under 40 DEG C to 50 DEG C conditions, to stir within 20 minutes to 30 minutes, to obtain second group of solution by mixed to nonionic emulsifying agent, white oil; The 4th step, sneaks into second group of solution in first group of solution, and adds auxiliary simultaneously, is under 50 DEG C to 60 DEG C conditions, to stir within 60 minutes to 120 minutes, to obtain composite modified agent emulsion in temperature; The 5th step, under condition of normal pressure, slowly adds bentonite suspension by composite modified agent emulsion and under temperature 50 C to 60 DEG C condition, stirs 120 minutes to 240 minutes; The 6th step, by twice-modified dose of product that joins the 5th step and stir 60 minutes to 120 minutes under temperature 60 C to 80 DEG C condition; The 7th step, obtains product crushed after being dried by the 6th step and obtain drilling well with putting forward cut type organophilic clay to particle diameter 100 order to 200 order powdery.
According to the drilling well described in claim 2 or 3 with putting forward cut type organophilic clay, it is characterized in that bis-quaternary ammonium salt cationic surfactant is one or more in DHAB, Varisoft 432PPG, two octadecyl trimethyl ammonium chloride, two Cetyltrimethylammonium bromide; Or/and auxiliary is the one in ethanol, acetone; Nonionic emulsifying agent is the one in OP-10, OP-4; White oil is one or more in 3# white oil, 4# white oil, 5# white oil, 10# white oil.
According to the above drilling well of claim 2 or 4 with putting forward cut type organophilic clay, it is characterized in that in bis-quaternary ammonium salt cationic surfactant, C atom can be replaced by S, N, P.
According to the drilling well described in claim 1 or 2 or 4 with putting forward cut type organophilic clay, it is characterized in that obtaining as follows: the bentonite suspension of aequum, composite modified agent emulsion, twice-modified dose are stirred 60 minutes to 120 minutes under temperature 60 C to 80 DEG C condition, after drying and crushing, be drilling well with putting forward cut type organophilic clay.
7. use the preparation method of organophilic clay according to the drilling fluid described in claim 1 or 2 or 4 for one kind, it is characterized in that carrying out as follows: the bentonite suspension of aequum, composite modified agent emulsion, twice-modified dose are stirred 60 minutes to 120 minutes under temperature 60 C to 80 DEG C condition, after drying and crushing, be drilling well with putting forward cut type organophilic clay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410209411.1A CN103992776A (en) | 2014-05-19 | 2014-05-19 | Shearing-potentiation organic soil for drilling and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410209411.1A CN103992776A (en) | 2014-05-19 | 2014-05-19 | Shearing-potentiation organic soil for drilling and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103992776A true CN103992776A (en) | 2014-08-20 |
Family
ID=51307121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410209411.1A Pending CN103992776A (en) | 2014-05-19 | 2014-05-19 | Shearing-potentiation organic soil for drilling and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103992776A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566494A (en) * | 2016-11-07 | 2017-04-19 | 天津博科瑞精细化学有限公司 | High-temperature-resistant filtrate loss reducer for oil-based drilling fluid and preparation method thereof |
| CN107163921A (en) * | 2017-05-02 | 2017-09-15 | 中国石油天然气股份有限公司 | A kind of oil base drilling fluid and preparation method thereof |
| CN110564387A (en) * | 2019-08-22 | 2019-12-13 | 中国石油集团长城钻探工程有限公司 | ultrahigh-density environment-friendly gas-to-oil synthetic base drilling fluid and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556169A (en) * | 2004-01-12 | 2004-12-22 | 高芒来 | Use of single moleule quarternary ammonium salt compound as clay stabilizing, antiexpanding and deblocking extender |
| CN102585183A (en) * | 2012-02-23 | 2012-07-18 | 北京理工大学 | Method for preparing nano composite material of hydroxyl-functional polyester/montmorillonite |
| CN103303934A (en) * | 2013-05-20 | 2013-09-18 | 中国石油天然气股份有限公司 | Preparation method of organic bentonite with high specific surface area |
-
2014
- 2014-05-19 CN CN201410209411.1A patent/CN103992776A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556169A (en) * | 2004-01-12 | 2004-12-22 | 高芒来 | Use of single moleule quarternary ammonium salt compound as clay stabilizing, antiexpanding and deblocking extender |
| CN102585183A (en) * | 2012-02-23 | 2012-07-18 | 北京理工大学 | Method for preparing nano composite material of hydroxyl-functional polyester/montmorillonite |
| CN103303934A (en) * | 2013-05-20 | 2013-09-18 | 中国石油天然气股份有限公司 | Preparation method of organic bentonite with high specific surface area |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566494A (en) * | 2016-11-07 | 2017-04-19 | 天津博科瑞精细化学有限公司 | High-temperature-resistant filtrate loss reducer for oil-based drilling fluid and preparation method thereof |
| CN106566494B (en) * | 2016-11-07 | 2020-02-04 | 天津天诚拓源科技发展有限公司 | High-temperature-resistant fluid loss additive for oil-based drilling fluid and preparation method thereof |
| CN107163921A (en) * | 2017-05-02 | 2017-09-15 | 中国石油天然气股份有限公司 | A kind of oil base drilling fluid and preparation method thereof |
| CN110564387A (en) * | 2019-08-22 | 2019-12-13 | 中国石油集团长城钻探工程有限公司 | ultrahigh-density environment-friendly gas-to-oil synthetic base drilling fluid and preparation method thereof |
| CN110564387B (en) * | 2019-08-22 | 2021-11-09 | 中国石油天然气集团有限公司 | Ultrahigh-density environment-friendly gas-to-oil synthetic base drilling fluid and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104694092B (en) | A kind of shale gas horizontal well strengthens water-base drilling fluid and its application of the borehole wall | |
| CN104448136A (en) | Preparation method of while-drilling plugging fluid for oil-based drilling fluid | |
| CN102796497A (en) | Gas oil base invert oil-emulsion drilling fluid and preparation method | |
| CN103013468B (en) | Salt-resistant drilling fluid with super-high density, preparation method and application thereof | |
| CN107325798B (en) | High temperature resistant anti-salt high-density insulating liquid and preparation method thereof | |
| CN103725268B (en) | High temperature resistance oil base drilling fluid emulsifying agent | |
| CN104449606A (en) | High temperature resistant well-cementing spacer fluid and preparation method thereof | |
| CN109337657B (en) | Modified silicon dioxide material suitable for fluorocarbon active agent type super-amphiphobic chip carrying agent for water-based drilling fluid and preparation method and application thereof | |
| CN103694975A (en) | Cement paste stabilizer and preparation method thereof | |
| CN104017549A (en) | Organic soil for oil base drilling fluids with high yield value and preparation method thereof | |
| CN101942293A (en) | Formula of defoaming agent for drilling fluid and processing technique | |
| CN103992776A (en) | Shearing-potentiation organic soil for drilling and preparation method thereof | |
| CN107739600A (en) | The method of thick-oil emulsified adhesive-reducing composition and its reducing viscosity by emulsifying | |
| CN106318352A (en) | Oil-displacement flushing spacer fluid and preparation method | |
| CN104327810A (en) | Solid-phase-free low frictional resistance drilling fluid | |
| CN104762069A (en) | Preparation method and application of ultrahigh-density micro-powder weighting agent used for drilling fluid | |
| CN104910330A (en) | High-density fluid loss additive for drilling fluids and preparation method thereof | |
| CN108949127A (en) | Low solid phase superhigh temperature water base drilling fluid and preparation method thereof | |
| CN103820086B (en) | A kind of composite modified organoclay and the full mineral oil based drilling fluid that contains this component | |
| CN105199690B (en) | A kind of oil-well cement high temperature resistant suspending agent | |
| CN105733529A (en) | Method for preparing organobentonite for white oil based drilling fluid | |
| CN105112026B (en) | A kind of preparation method and purposes of drilling fluid ultra high density powder body heavy weight additive | |
| CN110844915B (en) | Modified organic bentonite and preparation method and application thereof | |
| CN104804716A (en) | Well-cementing and anti-channeling nonionic styrene-butadiene latex and preparation method thereof | |
| CN108239521A (en) | A kind of drilling fluid micro emulsion gel and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140820 |