CN107175760A - The technology with slurry of high density and VHD mortar architecture - Google Patents
The technology with slurry of high density and VHD mortar architecture Download PDFInfo
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- CN107175760A CN107175760A CN201710505613.4A CN201710505613A CN107175760A CN 107175760 A CN107175760 A CN 107175760A CN 201710505613 A CN201710505613 A CN 201710505613A CN 107175760 A CN107175760 A CN 107175760A
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- slurry
- raw material
- agitating paddle
- rotating speed
- cup
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses high density and the technology with slurry of VHD mortar architecture, comprise the following steps：Each component is pre-mixed and poured into a container, the component in container is crushed using crushing knife and uniform raw material is formed；It will be poured into advance into slurry cup with pulp-water, and open agitating paddle, and keep being rotated with pulp-water in spiral vortex type in slurry cup；Raw material is slowly at the uniform velocity added in slurry cup, side edged tunes up the rotating speed of agitating paddle, keeps the slurry in slurry cup to be rotated in spiral vortex type；Stop after to the raw material that half will be added in slurry cup, the rotating speed of agitating paddle is reached into maximum, the rotating speed of agitating paddle is reduced after stirring, and be poured slowly into slurry cup raw material again；Raw material is poured into after slurry cup completely, and the rotating speed of agitating paddle is reached into maximum, is stopped after stirring, stands the cement mortar in slurry cup；The test of cement mortar fluidity is carried out after cement mortar after standing is poured out at once.The present invention solves high density and VHD cement mortar mixes the problem of slurry is difficult.
Description
Technical field
The present invention relates to a kind of technology with slurry, and in particular to high density and the technology with slurry of VHD mortar architecture.
Background technology
Well cementation is the important operation in drilling process.It is general in drillng operation at least to have well cementation (producing well) twice,
Up to 4~5 times well cementation (exploration well).Uppermost well cementation is surface pipe well cementation, and what it rose is " mud path, oil gas door "
Effect.Before spud in next time, preventer Prevention of blowout is filled on surface pipe.Slurry conduit is filled on preventer,
It is the path that drilling fluid returns to mud pit.Intermediate casing cementing is often descended in drilling process, what it rose is and " consolidate rear, pacify
Explore the way entirely " effect.As the tunnel in the tunnel of highway, colliery, well slough, high pressure and shakiness can be also run into drilling process
Fixed stratum, and in danger in " exploring the way " forward have the individual route of retreat, plays a part of " succouring ".
The working solution cemented the well during cement mortar, it is in recent years, deep as Domestic Oil And Gas Fields are explored and development deepens continuously
Well ultradeep well quantity is more and more.For the well cementing operation suitable for deep-well and ultradeep well, it is necessary to close using high density and superelevation
The cement mortar of degree, the density of cement mortar is higher, and the viscosity of cement mortar is bigger, mixes slurry difficulty, component easily occurs and mixes uneven,
The situation of slurry poor performance.
The content of the invention
The technical problems to be solved by the invention are that high density and VHD cement mortar mix slurry difficulty, it is therefore intended that provided
The technology with slurry of high density and VHD mortar architecture, the problem of solution high density and VHD cement mortar mix slurry.
The present invention is achieved through the following technical solutions：
The technology with slurry of high density and VHD mortar architecture, comprises the following steps：
S1, proportionally load weighted each component it will be pre-mixed and pour into a container, using crushing knife in container
Component is crushed and mixes to form uniform raw material；
S2, poured into load weighted in advance into slurry cup with pulp-water, open agitating paddle, keep in slurry cup with pulp-water in rotation
Whirlpool formula is rotated, and continues 0.5-1 minutes；
S3, by the raw material mixed in step S1 slowly at the uniform velocity add slurry cup in, side edged tunes up the rotating speed of agitating paddle, protect
The slurry held in slurry cup rotates in spiral vortex type；
S4, to stopping after the raw material that half will be added in slurry cup, the rotating speed of agitating paddle is reached into maximum, after stirring 5-10S
The rotating speed of agitating paddle is reduced, and is poured slowly into slurry cup raw material again；
S5, raw material are poured into after slurry cup completely, and the rotating speed of agitating paddle is reached into maximum, and stirring stops after 0.5-1 minutes, stood
Cement mortar in slurry cup 0.5-1 minutes；
S6, by step S5 stand after cement mortar pour out, the test of cement mortar fluidity is carried out after hand operated mixing at once.
The raw material of cement mortar is pulverized and mixed by the present invention before slurry is mixed, and is in advance well mixed each component, it is to avoid
Raw material weight host and auxiliary agent mix uneven and can not uniformly mix slurry, and the material matter such as cement, heavy weight additive is entered in the raw material of cement mortar
Ground is coarse, and grain graininess is uneven, can influence the decentralization of cement mortar, the phenomenon lumpd easily occurs, therefore, and the present invention exists
The each component of raw material is crushed before mixing slurry so that the epigranular of raw material, the granularity of each component is basically identical, is conducive to
Slurry is uniform, and sedimentation is less likely to occur slurry；Pulp-water will be mixed and stir in advance by mixing before slurry, mixing pulp-water has certain rotating speed,
Pour into after part material, raw material can not stop that mixing pulp-water continues to rotate, and raw material can together rotate with pulp-water is mixed, and raw material can be slow
Dissolving, slurry will not block agitating paddle, and slurry is acted on by from the two-way stirring for mixing pulp-water and agitating paddle, stirs granularity
By force, slurry can be thinning under agitation, will not conglomeration；Batch turning in two times of the invention, is to rapidly and uniformly stir raw material, it is to avoid
All raw materials are disposably all poured into slurry cup, and the resistance that agitating paddle is subject to is big and can not quickly stir largely to reduce
The rotating speed of slurry, is difficult reduction after the viscosity rise of slurry, it is impossible to form stable slurry.The present invention by feeding in batches and
Strengthen the rotary speed of slurry, solve high density and VHD cement mortar mixes the problem of slurry is difficult, the slurry of formation is stable
Property it is high, slurry is uniform.
When crushing knife is crushed and mixed to the component in container in step S1, the container is sealing state；Crush
Knife is provided with least three blades.The blade of crushing knife is more, and the particle of crushing is thinner, and granularity is more uniform；Hold in crushing process
Device needs sealing, it is to avoid significant loss and the stability for influenceing slurry.
To will stop after the raw material that half is added in slurry cup in step S4, the rotating speed of agitating paddle being reached into maximum, 8S is stirred
The rotating speed of agitating paddle is reduced at 2/3rds of maximum (top) speed afterwards.Raw material is poured into after half, time of stirring be difficult it is long,
Otherwise slurry viscosity can be too low, have impact on the actual performance of slurry.
To will stop after the raw material that half is added in slurry cup in step S4, the rotating speed of agitating paddle being reached into maximum, 8S is stirred
The rotating speed of agitating paddle is reduced at 2/3rds of maximum (top) speed afterwards, the rotation situation of slurry is observed after reduction of speed；If it was found that slurry
Body rotates slow, then to will add the cement mortar dispersant that quality accounts for raw material gross mass 0.1%-0.3% in step S1 in cup.Side
The viscosity of slurry is observed on side with slurry, controls the viscosity of slurry, it is to avoid the viscosity of final slurry is excessive.
Cement mortar stands 30S in step S5.It is long that cement mortar is unable to time of repose, and cement mortar stands long easy sedimentation not
It is easy to test the viscosity of cement mortar.
The present invention compared with prior art, has the following advantages and advantages：
1st, the technology with slurry of high density and VHD mortar architecture of the present invention by feeding and strengthening slurry in batches
Rotary speed, solve high density and VHD cement mortar mix the problem of slurry is difficult；
2nd, the slurry stability of the technology with slurry formation of high density and VHD mortar architecture of the present invention is high, and slurry is equal
It is even；
3rd, the technical matters with slurry of high density and VHD mortar architecture of the present invention is simple, and cost is low.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment, to present invention work
Further to describe in detail, exemplary embodiment and its explanation of the invention is only used for explaining the present invention, is not intended as to this
The restriction of invention.
Embodiment 1
The technology with slurry of high density and VHD mortar architecture of the present invention, comprises the following steps：
S1, proportionally load weighted each component it will be pre-mixed and pour into a container, using crushing knife in container
Component is crushed and mixes to form uniform raw material；
S2, poured into load weighted in advance into slurry cup with pulp-water, open agitating paddle, keep in slurry cup with pulp-water in rotation
Whirlpool formula is rotated, and continues 0.5-1 minutes；
S3, by the raw material mixed in step S1 slowly at the uniform velocity add slurry cup in, side edged tunes up the rotating speed of agitating paddle, protect
The slurry held in slurry cup rotates in spiral vortex type；
S4, to stopping after the raw material that half will be added in slurry cup, the rotating speed of agitating paddle is reached into maximum, after stirring 5-10S
The rotating speed of agitating paddle is reduced, and is poured slowly into slurry cup raw material again；
S5, raw material are poured into after slurry cup completely, and the rotating speed of agitating paddle is reached into maximum, and stirring stops after 0.5-1 minutes, stood
Cement mortar in slurry cup 0.5-1 minutes；
S6, by step S5 stand after cement mortar pour out, the test of cement mortar fluidity is carried out after hand operated mixing at once.
The raw material of cement mortar is pulverized and mixed by the present invention before slurry is mixed, and is in advance well mixed each component, it is to avoid
Raw material weight host and auxiliary agent mix uneven and can not uniformly mix slurry, and the material matter such as cement, heavy weight additive is entered in the raw material of cement mortar
Ground is coarse, and grain graininess is uneven, can influence the decentralization of cement mortar, the phenomenon lumpd easily occurs, therefore, and the present invention exists
The each component of raw material is crushed before mixing slurry so that the epigranular of raw material, the granularity of each component is basically identical, is conducive to
Slurry is uniform, and sedimentation is less likely to occur slurry；Pulp-water will be mixed and stir in advance by mixing before slurry, mixing pulp-water has certain rotating speed,
Pour into after part material, raw material can not stop that mixing pulp-water continues to rotate, and raw material can together rotate with pulp-water is mixed, and raw material can be slow
Dissolving, slurry will not block agitating paddle, and slurry is acted on by from the two-way stirring for mixing pulp-water and agitating paddle, stirs granularity
By force, slurry can be thinning under agitation, will not conglomeration；Batch turning in two times of the invention, is to rapidly and uniformly stir raw material, it is to avoid
All raw materials are disposably all poured into slurry cup, and the resistance that agitating paddle is subject to is big and can not quickly stir largely to reduce
The rotating speed of slurry, is difficult reduction after the viscosity rise of slurry, it is impossible to form stable slurry.The present invention by feeding in batches and
Strengthen the rotary speed of slurry, solve high density and VHD cement mortar mixes the problem of slurry is difficult, the slurry of formation is stable
Property it is high, slurry is uniform.
When crushing knife is crushed and mixed to the component in container in step S1, the container is sealing state；Crush
Knife is provided with least three blades.The blade of crushing knife is more, and the particle of crushing is thinner, and granularity is more uniform；Hold in crushing process
Device needs sealing, it is to avoid significant loss and the stability for influenceing slurry.
To will stop after the raw material that half is added in slurry cup in step S4, the rotating speed of agitating paddle being reached into maximum, 8S is stirred
The rotating speed of agitating paddle is reduced at 2/3rds of maximum (top) speed afterwards.Raw material is poured into after half, time of stirring be difficult it is long,
Otherwise slurry viscosity can be too low, have impact on the actual performance of slurry.
To will stop after the raw material that half is added in slurry cup in step S4, the rotating speed of agitating paddle being reached into maximum, 8S is stirred
The rotating speed of agitating paddle is reduced at 2/3rds of maximum (top) speed afterwards, the rotation situation of slurry is observed after reduction of speed；If it was found that slurry
Body rotates slow, then to will add the cement mortar dispersant that quality accounts for raw material gross mass 0.1%-0.3% in step S1 in cup.Side
The viscosity of slurry is observed on side with slurry, controls the viscosity of slurry, it is to avoid the viscosity of final slurry is excessive.
Cement mortar stands 30S in step S5.It is long that cement mortar is unable to time of repose, and cement mortar stands long easy sedimentation not
It is easy to test the viscosity of cement mortar.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (5)
1. the technology with slurry of high density and VHD mortar architecture, it is characterised in that comprise the following steps：
S1, proportionally load weighted each component it will be pre-mixed and pour into a container, using crushing knife to the component in container
Crushed and mix to form uniform raw material；
S2, poured into load weighted in advance into slurry cup with pulp-water, open agitating paddle, it is in spiral vortex type with pulp-water to keep in slurry cup
Rotate, continue 0.5-1 minutes；
S3, the raw material mixed in step S1 slowly at the uniform velocity added in slurry cup, side edged tunes up the rotating speed of agitating paddle, keeps slurry
Slurry in cup rotates in spiral vortex type；
S4, to stopping after the raw material that half will be added in slurry cup, the rotating speed of agitating paddle is reached into maximum, reduced after stirring 5-10S
The rotating speed of agitating paddle, and raw material is poured slowly into slurry cup again；
S5, raw material are poured into after slurry cup completely, and the rotating speed of agitating paddle is reached into maximum, and stirring stops after 0.5-1 minutes, stands slurry cup
In cement mortar 0.5-1 minutes；
S6, by step S5 stand after cement mortar pour out, the test of cement mortar fluidity is carried out after hand operated mixing at once.
2. the technology with slurry of high density according to claim 1 and VHD mortar architecture, it is characterised in that step
When crushing knife is crushed and mixed to the component in container in S1, the container is sealing state；Crushing knife is provided with least
Three blades.
3. the technology with slurry of high density according to claim 1 and VHD mortar architecture, it is characterised in that step
To will stop after the raw material that half is added in slurry cup in S4, the rotating speed of agitating paddle is reached agitating paddle after maximum, stirring 8S
Rotating speed is reduced at 2/3rds of maximum (top) speed.
4. the technology with slurry of high density according to claim 3 and VHD mortar architecture, it is characterised in that step
To will stop after the raw material that half is added in slurry cup in S4, the rotating speed of agitating paddle is reached agitating paddle after maximum, stirring 8S
Rotating speed is reduced at 2/3rds of maximum (top) speed, and the rotation situation of slurry is observed after reduction of speed；If it was found that slurry rotates slow,
The cement mortar dispersant of raw material gross mass 0.1%-0.3% in step S1 is accounted for quality will be added in cup.
5. the technology with slurry of high density according to claim 1 and VHD mortar architecture, it is characterised in that step
Cement mortar stands 30S in S5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710505613.4A CN107175760A (en) | 2017-06-28 | 2017-06-28 | The technology with slurry of high density and VHD mortar architecture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710505613.4A CN107175760A (en) | 2017-06-28 | 2017-06-28 | The technology with slurry of high density and VHD mortar architecture |
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| Publication Number | Publication Date |
|---|---|
| CN107175760A true CN107175760A (en) | 2017-09-19 |
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ID=59845035
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710505613.4A Pending CN107175760A (en) | 2017-06-28 | 2017-06-28 | The technology with slurry of high density and VHD mortar architecture |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1865185A (en) * | 2005-05-21 | 2006-11-22 | 新疆石油管理局钻井工艺研究院 | High density concrete slurry |
| CN103450862A (en) * | 2013-08-02 | 2013-12-18 | 中石化江汉石油工程有限公司钻井一公司 | High-density potassium salt-resistant cementing slurry and preparation method for same |
| CN104293331A (en) * | 2014-09-02 | 2015-01-21 | 中国石油集团渤海钻探工程有限公司 | High-temperature high-density cement slurry for oil field high-temperature high-pressure well cementation and preparation method thereof |
| CN105038743A (en) * | 2015-06-11 | 2015-11-11 | 成都欧美克石油科技有限公司 | High-density cement slurry suitable for shale gas cementing and preparation method of high-density cement slurry |
| WO2016175754A1 (en) * | 2015-04-28 | 2016-11-03 | Halliburton Energy Services, Inc. | Bead suspensionbead suspension mixing with cement slurry |
-
2017
- 2017-06-28 CN CN201710505613.4A patent/CN107175760A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1865185A (en) * | 2005-05-21 | 2006-11-22 | 新疆石油管理局钻井工艺研究院 | High density concrete slurry |
| CN103450862A (en) * | 2013-08-02 | 2013-12-18 | 中石化江汉石油工程有限公司钻井一公司 | High-density potassium salt-resistant cementing slurry and preparation method for same |
| CN104293331A (en) * | 2014-09-02 | 2015-01-21 | 中国石油集团渤海钻探工程有限公司 | High-temperature high-density cement slurry for oil field high-temperature high-pressure well cementation and preparation method thereof |
| WO2016175754A1 (en) * | 2015-04-28 | 2016-11-03 | Halliburton Energy Services, Inc. | Bead suspensionbead suspension mixing with cement slurry |
| CN105038743A (en) * | 2015-06-11 | 2015-11-11 | 成都欧美克石油科技有限公司 | High-density cement slurry suitable for shale gas cementing and preparation method of high-density cement slurry |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170919 |
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| RJ01 | Rejection of invention patent application after publication |