CN107057665B - A kind of oleaginous suspension and its purposes for cementing slurry suspending agent - Google Patents
A kind of oleaginous suspension and its purposes for cementing slurry suspending agent Download PDFInfo
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- CN107057665B CN107057665B CN201710011239.2A CN201710011239A CN107057665B CN 107057665 B CN107057665 B CN 107057665B CN 201710011239 A CN201710011239 A CN 201710011239A CN 107057665 B CN107057665 B CN 107057665B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
- C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
- C09K8/473—Density reducing additives, e.g. for obtaining foamed cement compositions
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Abstract
This application discloses a kind of oleaginous suspension and its for the purposes of cementing slurry suspending agent, the oleaginous suspension includes silicates mineral, cellulose, silica, oil product thickener and mineral oil；Wherein, in the oleaginous suspension, the content of the silicates mineral is 10~40 weight %, the content of the cellulose is 10~30 weight %, the silica is 10~30 weight %, the content of the oil product thickener is 0.5~2.0 weight %, and the mineral oil is 30~60 weight %；The oleaginous suspension can guarantee the suspension stability of cementing slurry in common surface pipe and intermediate casing cementing temperature range (135 DEG C of <).
Description
Technical field
This application involves but be not limited to a kind of preparation of oleaginous suspension and as the purposes of cementing slurry suspending agent.
Background technique
Well cementation is one of the key operation during oil/gas well shaft building, is typically referred to underground tripping in casing, and by cement
Stock pump enters stratum, is allowed to the process in casing and ground interlayer annular space hydration and sclerosis.The main purpose of well cementation is protection and support oil
Casing in gas well, the stratum such as packing oil, gas and water.It is answered under normal conditions by the pressure that cement column is transferred to downhole formation
Less than formation fracture pressure, enters stratum to prevent fluid flow and miss.Therefore, certain frangible stratum construct when, need using
Low weight cement slurry.Preparing low-density cement mortar can be added compared with the more water of conventional cement slurries into cement slurry, add simultaneously
Enter suspending agent (extender) to prevent the sedimentation of solid particulate materials and the generation of free liquid in water mud.The most common well cementation
Suspending agent have waterglass or as soil, the low-density cement mortar that waterglass is prepared is only capable of using at low temperature, and property regulation is not easy；
As soil need to carry out prehydration with fresh water and can just play corresponding suspension effect, and with marine well cementation situ liquid charging system
It is universal, it is particularly inconvenient using seeming.Therefore, it is necessary to which it is outstanding to develop the liquid that suspendability is good, marine well cementing operation is suitble to use
Floating agent.
Summary of the invention
It is the general introduction to the theme being described in detail herein below.This general introduction is not the protection model in order to limit claim
It encloses.
This application provides a kind of preparation method of oleaginous suspension and as the purposes of cementing slurry suspending agent, the oil
Phase suspension can guarantee cementing slurry in common surface pipe and intermediate casing cementing temperature range (135 DEG C of <)
Suspension stability.
In a first aspect, the oleaginous suspension includes silicates mineral, fibre this application provides a kind of oleaginous suspension
Tie up element, silica, oil product thickener and mineral oil；Wherein, in the oleaginous suspension, the silicates mineral
Content is 10~40 weight %, and the content of the cellulose is 10~30 weight %, and the silica is 10~30 weight %,
The content of the oil product thickener is 0.5~2.0 weight %, and the mineral oil is 30~60 weight %.
Optionally, the content of the silicates mineral is 20~40 weight %, and the content of the cellulose is 10~20
Weight %, the silica are 10~20 weight %, and the content of the oil product thickener is 0.5~2.0 weight %, the mine
Object oil is 35~55 weight %.
Optionally, the silicates mineral be selected from bentonite, attapulgite, aluminium-magnesium silicate, lithium magnesium silicate, sepiolite,
Vermiculite, clay grade mica, expansion one or more of chlorite and allophane.
Optionally, the cellulose be selected from methylcellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose,
Hydroxypropyl cellulose, benzylcellulose, hydroxypropyl methyl cellulose, cyanethyl cellulose, benzyl cyanethyl cellulose, carboxymethyl
One or more of hydroxyethyl cellulose or benzyl cellulose.
Optionally, the silica is selected from one or both of white carbon black, micro- silicon.
Optionally, the oil product thickener is styrene ethylene-propylene-styrene type block copolymer.
Second aspect, this application provides a kind of as above any oleaginous suspensions to be used for as cementing slurry
The application of suspending agent.
The third aspect, this application provides the preparation methods of a kind of as above any oleaginous suspension, comprising:
It is at 110 DEG C~130 DEG C of temperature, the oil product thickener and mineral oil of the weight percentage is uniform, it is cooled to room temperature
Afterwards, silicates mineral, cellulose and the silica of the weight percentage is added, stirs evenly to get the oily phase
Suspension.
Fourth aspect, this application provides a kind of cementing slurry comprising as above any oleaginous suspension,
In, the weight percent that the oleaginous suspension accounts for the cementing slurry is 5~35%.
Compared with prior art, which is not necessarily to prehydration, and available temperature range is wide, and suspending stabilized performance is good,
It can prevent the sedimentation of solid particulate materials and the generation of free liquid in cement slurry.The oleaginous suspension is liquid simultaneously, is used
Shi Buyi assembles agglomeration in water, not fugitive dust, is conducive to the transport safe and convenient of site operation personnel's life and construction, especially
The needs of offshore construction.
Other features and advantage will illustrate in the following description, also, partly become from specification
It obtains it is clear that being understood and implementing the application.The purpose of the application and other advantages can be by specifications, right
Specifically noted structure is achieved and obtained in claim.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutual any combination.
A kind of oleaginous suspension, the oleaginous suspension include silicates mineral, cellulose, silica, oil product increasing
Thick dose and mineral oil；Wherein, in the oleaginous suspension, the content of the silicates mineral is 10~40 weight %,
The content of the cellulose is 10~30 weight %, and the silica is 10~30 weight %, and the oil product thickener contains
Amount is 0.5~2.0 weight %, and the mineral oil is 30~60 weight %.
In one embodiment, the content of the silicates mineral is 20~40 weight %, the content of the cellulose
For 10~20 weight %, the silica is 10~20 weight %, and the content of the oil product thickener is 0.5~2.0 weight
% is measured, the mineral oil is 35~55 weight %.
In one embodiment, the silicates mineral be selected from bentonite, attapulgite, aluminium-magnesium silicate, lithium magnesium silicate,
Sepiolite, vermiculite, clay grade mica, expansion one or more of chlorite and allophane.
In one embodiment, the silicates mineral are selected from bentonite, attapulgite, aluminium-magnesium silicate or lithium magnesium silicate
One or more of.
In one embodiment, the cellulose is selected from methylcellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyl second
Base cellulose, hydroxypropyl cellulose, benzylcellulose, hydroxypropyl methyl cellulose, cyanethyl cellulose, benzyl cyanide ethyl cellulose
One or more of element, carboxymethyl hydroxyethyl cellulose or benzyl cellulose.
In one embodiment, the cellulose is in ethyl cellulose, hydroxyethyl cellulose or hydroxypropyl cellulose
One or more.
In one embodiment, the silica is selected from one or both of white carbon black, micro- silicon.
In one embodiment, the oil product thickener is styrene ethylene-propylene-styrene type block copolymer.
A kind of oleaginous suspension as described above is used for the application of the suspending agent as cementing slurry.
A kind of preparation method of oleaginous suspension as described above, comprising:, will be described heavy at 110 DEG C~130 DEG C of temperature
Oil product thickener and the mineral oil for measuring percentage composition are uniform, and after cooling, the silicates of the weight percentage are added
Mineral, cellulose and silica stir evenly to get the oleaginous suspension.
A kind of cementing slurry comprising oleaginous suspension as described above, the oleaginous suspension account for the cementing concrete
The weight percent of slurry is 5~35%.
In following embodiment, attapulgite, bentonite are purchased from Hebei YaoXin mining company, aluminium-magnesium silicate and lithium magnesium silicate purchase
From Beijing Jingsheng Guotai Technology Co., Ltd., hydroxyethyl cellulose, ethyl cellulose and hydroxypropyl cellulose are purchased from roc space chemical industry
Co., Ltd, micro- silicon and white oil take Tianjin Chemical Co., Ltd. purchased from CNOOC, and oil product thickener rises green strong purchased from Weihai red sun
Chemical Co., Ltd..
Embodiment 1
A kind of oleaginous suspension, the oleaginous suspension include silicates mineral, cellulose, silica, oil product increasing
Thick dose and mineral oil；Wherein, in the oleaginous suspension, the silicates mineral are 37.28 weight %, the fiber
The content of element is 10.36 weight %, and the silica is 10.36 weight %, and the content of the oil product thickener is 0.58 weight
% is measured, the mineral oil is 41.43 weight %.A kind of preparation method of oleaginous suspension, includes the following steps:
8g attapulgite, 32g aluminium-magnesium silicate and 50g lithium magnesium silicate are weighed, is uniformly mixed stand-by；
18g hydroxyethyl cellulose and 7g ethyl cellulose are weighed, is uniformly mixed stand-by；
20g white carbon black and the micro- silicon of 5g are weighed, is uniformly mixed stand-by；
Weigh 10#White oil 100g, is heated to 110 DEG C, then weighs oil product thickener 1.4g, is added while stirring to white oil
In, it is subsequently agitated for 30min, is cooled to room temperature up to the mineral oil after thickening.
Above-mentioned weighed silicates mineral, cellulose and silica are slowly added in the mineral oil after thickening,
It stirs while adding, after mixing up to oleaginous suspension.
Embodiment 2
A kind of oleaginous suspension, the oleaginous suspension include silicates mineral, cellulose, silica, oil product increasing
Thick dose and mineral oil；Wherein, in the oleaginous suspension, the silicates mineral are 23.23 weight %, the fiber
The content of element is 19.52 weight %, and the silica is 10.22 weight %, and the content of the oil product thickener is 0.56 weight
% is measured, the mineral oil is 46.47 weight %.
A kind of preparation method of oleaginous suspension, includes the following steps:
30g aluminium-magnesium silicate and 20g lithium magnesium silicate are weighed, is uniformly mixed stand-by；
22g hydroxyethyl cellulose and 20g hydroxypropyl cellulose are weighed, is uniformly mixed stand-by；
7g white carbon black and the micro- silicon of 15g are weighed, is uniformly mixed stand-by；
Weigh 10#White oil 100g, is heated to 110 DEG C, then weighs oil product thickener 1.2g, is added while stirring to white oil
In, it is subsequently agitated for 30min, is cooled to room temperature up to the mineral oil after thickening.
Above-mentioned weighed silicates mineral, cellulose and silica are slowly added in the mineral oil after thickening,
It stirs while adding, after mixing up to oleaginous suspension.
Embodiment 3
A kind of oleaginous suspension, the oleaginous suspension include silicates mineral, cellulose, silica, oil product increasing
Thick dose and mineral oil；Wherein, in the oleaginous suspension, the silicates mineral are 20.25 weight %, the fiber
The content of element is 17.61 weight %, and the silica is 17.61 weight %, and the content of the oil product thickener is 0.53 weight
% is measured, the mineral oil is 44.01 weight %.
A kind of preparation method of oleaginous suspension, includes the following steps:
16g bentonite and 30g aluminium-magnesium silicate are weighed, is uniformly mixed stand-by；
It is stand-by to weigh 40g hydroxyethyl cellulose；
10g white carbon black and the micro- silicon of 30g are weighed, is uniformly mixed stand-by；
Weigh 10#White oil 100g, is heated to 110 DEG C, then weighs oil product thickener 1.2g, is added while stirring to white oil
In, it is subsequently agitated for 30min, is cooled to room temperature up to the mineral oil after thickening.
Above-mentioned weighed silicates mineral, cellulose and silica are slowly added in the mineral oil after thickening,
It stirs while adding, after mixing up to oleaginous suspension.
Application Example 1
Oleaginous suspension described in the embodiment of the present invention can be used as light-weight cement slurry suspending agent, according to API RP 10B
In requirement prepare cement slurry, the different amounts of oleaginous suspension is added as suspending agent and fluid loss agent, defoaming agent etc.
Common well cementation additive, can form density range in 1.3~1.6g/cm3Light-weight cement slurry, in each cement slurry on
State the ratio such as table 1 of additive.
The light-weight cement slurry that table 1 is prepared
In table 1, BWOC=by weight of cement accounts for the percentage of cement weight；Fluid loss agent PC-G80L
And defoaming agent PC-X63L takes Tianjin Chemical Co., Ltd. purchased from CNOOC；As soil be purchased from Chang Li mineral products Co., Ltd, waterglass
Purchased from Beijing Red Star spacious mansion chemical building material Co., Ltd, the two is common well cementation suspending agent, and prepared cement slurry is to compare
Performance of the bright oleaginous suspension as well cementation suspending agent.
As shown in table 1, it is 5~35% that the oleaginous suspension, which accounts for the weight percent of the cementing slurry, meanwhile, institute
Stating oleaginous suspension can be used as the preparation that well cementation suspending agent carries out light-weight cement slurry.
Application Example 2
By it is above-mentioned using oleaginous suspension as the light-weight cement slurry of suspending agent according to the requirement in API RP 10B into
Under row different temperatures density contrast test, and with the prior art (using waterglass or as soil as suspending agent) gained low-density cement mortar
Compare, using illustrate the oleaginous suspension as well cementation suspending agent performance, as shown in table 2.
2 cement density difference test result of table
In table 2,1# cement slurry is that use oleaginous suspension made from embodiment 1 for density obtained by suspending agent be 1.30g/
The cement slurry of cm3；7# cement slurry is that use oleaginous suspension made from embodiment 2 for density obtained by suspending agent be 1.45g/cm3
Cement slurry；13# cement slurry is that use oleaginous suspension made from embodiment 3 for density obtained by suspending agent be 1.60g/cm3's
Cement slurry；4# cement slurry be use as soil be 1.30g/cm3 for density obtained by suspending agent cement slurry；9# cement slurry is as use
Soil is the cement slurry that density obtained by suspending agent is 1.45g/cm3；10# cement slurry is to use the waterglass to be for density obtained by suspending agent
1.45g/cm3 cement slurry.
It is to suspend from being can be seen that in the test result of table 2 using gained oleaginous suspension in the embodiment of the present application 1-3
Agent, the cement slurry of (45 DEG C, 90 DEG C, 135 DEG C) is able to maintain good stability, cement slurry difference of densities at each temperature
< 0.05, and use it is commercially available as soil and waterglass be suspending agent, gained cement slurry difference of densities is big, cement slurry stability compared with
Difference, and as the temperature rises, this difference is more obvious.This illustrates oleaginous suspension obtained by the embodiment of the present application to low density water
The suspendability of mud is more preferable compared with existing product, and thermal adaptability is also more preferable.
Although embodiment disclosed by the application is as above, the content only for ease of understanding the application and use
Embodiment is not limited to the application.Technical staff in any the application fields, is taken off not departing from the application
Under the premise of the spirit and scope of dew, any modification and variation, but the application can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (9)
1. a kind of oleaginous suspension, which is characterized in that the oleaginous suspension includes silicates mineral, cellulose, titanium dioxide
Silicon, oil product thickener and mineral oil；In the oleaginous suspension, the content of the silicates mineral is 10~40 weights
% is measured, the content of the cellulose is 10~30 weight %, and the silica is 10~30 weight %, the oil product thickener
Content be 0.5~2.0 weight %, the mineral oil be 30~60 weight %.
2. oleaginous suspension according to claim 1, wherein the content of the silicates mineral is 20~40 weights
% is measured, the content of the cellulose is 10~20 weight %, and the silica is 10~20 weight %, the oil product thickener
Content be 0.5~2.0 weight %, the mineral oil be 35~55 weight %.
3. oleaginous suspension according to claim 1 or 2, wherein the silicates mineral are selected from bentonite, concave convex rod
Soil, aluminium-magnesium silicate, lithium magnesium silicate, sepiolite, vermiculite, clay grade mica, expansion one of chlorite and allophane or several
Kind.
4. oleaginous suspension according to claim 1 or 2, wherein it is fine that the cellulose is selected from methylcellulose, carboxymethyl
Tie up element, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, benzylcellulose, hydroxypropyl methyl cellulose, cyanoethyl
One or more of cellulose, benzyl cyanethyl cellulose, carboxymethyl hydroxyethyl cellulose or benzyl cellulose.
5. oleaginous suspension according to claim 1 or 2, wherein the silica in white carbon black, micro- silicon one
Kind or two kinds.
6. oleaginous suspension according to claim 1 or 2, wherein the oil product thickener is styrene ethylene-propylene-
Styrene type block copolymer.
7. a kind of be used for answering for the suspending agent as cementing slurry such as oleaginous suspension of any of claims 1-6
With.
8. a kind of preparation method such as oleaginous suspension of any of claims 1-6, comprising: 110 DEG C of temperature~
It is at 130 DEG C, the oil product thickener and mineral oil of the weight percentage is uniform, after being cooled to room temperature, described in addition
Silicates mineral, cellulose and the silica of weight percentage, stir evenly to get the oleaginous suspension.
9. a kind of cementing slurry comprising oleaginous suspension such as of any of claims 1-6, wherein the oil phase
The weight percent that suspension accounts for the cementing slurry is 5~35%.
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| CN110760295B (en) * | 2018-07-25 | 2021-10-22 | 中国石油化工股份有限公司 | High-temperature tackifier for oil well cement slurry and preparation method thereof |
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| CN111747689B (en) * | 2020-07-02 | 2021-12-28 | 胜利油田方圆陶业有限公司 | Petroleum propping agent and preparation method thereof |
| CN111961440A (en) * | 2020-08-25 | 2020-11-20 | 张甲吉 | Biopolymer thickening agent and preparation method and application thereof |
| CN115872647B (en) * | 2021-09-27 | 2024-02-09 | 中国石油化工股份有限公司 | Suspension stabilizer and preparation method and application thereof |
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