CN208968910U - Maintenance mould of triaxial compression sample of oil well set cement - Google Patents
Maintenance mould of triaxial compression sample of oil well set cement Download PDFInfo
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- CN208968910U CN208968910U CN201820845268.9U CN201820845268U CN208968910U CN 208968910 U CN208968910 U CN 208968910U CN 201820845268 U CN201820845268 U CN 201820845268U CN 208968910 U CN208968910 U CN 208968910U
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- 239000004568 cement Substances 0.000 title claims abstract description 81
- 238000012423 maintenance Methods 0.000 title claims abstract description 62
- 230000006835 compression Effects 0.000 title claims abstract description 23
- 238000007906 compression Methods 0.000 title claims abstract description 23
- 239000003129 oil well Substances 0.000 title claims abstract description 20
- 239000002184 metal Substances 0.000 claims description 5
- 229920002472 Starch Polymers 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 238000000465 moulding Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000012669 compression test Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 238000005070 sampling Methods 0.000 description 5
- 239000011440 grout Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000686 essence Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a maintenance mould of oil well set cement triaxial compression sample, include: the die comprises a die body, a bottom plate and a cover plate; the die body comprises a middle die plate and two side die plates which are respectively connected to two sides of the middle die plate, wherein two sides of the middle die plate are respectively provided with at least one first semicircular hole, two side die plates are respectively provided with at least one second semicircular hole, and the first semicircular hole and the second semicircular hole are used for jointly forming a circular hole; the mould body is clamped and fixed between the bottom plate and the cover plate, so that the circular holes form cylindrical cavities, and the cylindrical cavities are used for pouring cement paste. The utility model provides a maintenance mould of oil well set cement triaxial compression sample can solve the triaxial compressive strength experiment measuring result problem that the cutting set cement leads to among the prior art is out of alignment.
Description
Technical field
The utility model relates to petroleum works Oil-Gas Well Engineering cementing technology field more particularly to a kind of hardened oilwell cements three
The maintenance mould of axis compression sample.
Background technique
As the more fully direction Oil-Gas Well Engineering Xiang Gengshen is developed, the mechanical property of hardened oilwell cement needs more means
It tested, explained and is analyzed, and triaxial shear strength test is then most representative.Oil/gas well Behavior of Hardened Cement Paste is in practical pit shaft
Different loads can be born simultaneously, and the method for current indoor single evaluation Mechanical Behavior of Hardened Cement Paste cannot restore completely Behavior of Hardened Cement Paste and exist
The stress condition of underground, so triaxial shear strength is more applied and evaluated in Mechanical Behavior of Hardened Cement Paste, this method can be
The compression strength of Behavior of Hardened Cement Paste is tested in the case where certain temperature and confining pressure, while can also test the load-deformation curve of Behavior of Hardened Cement Paste,
Than other methods with more advance.In order to more preferably simulate Behavior of Hardened Cement Paste in underground actual loading situation, the accurate Behavior of Hardened Cement Paste that measures exists
There is the compression strength under the conditions of confining pressure, needs to measure the pressure resistance under Behavior of Hardened Cement Paste condition of triaxial stress by triaxial strength tester
Degree and stress-strain diagram.
Sample currently used for maintenance Behavior of Hardened Cement Paste triaxial strength test is first maintenance criteria side's mould certain age, after demoulding
Standard side cross cutting is cut into cylinder, then triaxial shear strength test is carried out to the cylindrical mould of the well cutting.
It is above-mentioned in the prior art, due to cutting Behavior of Hardened Cement Paste during Behavior of Hardened Cement Paste will necessarily be caused centainly to damage, then
Triaxial shear strength is carried out again to test the problems such as inevitably resulting in measurement result misalignment, therefore previous triaxial shear strength sample
Maintenance mould needs to improve.
Utility model content
The utility model provides a kind of maintenance mould of hardened oilwell cement triaxial compressions sample, to solve to cut in the prior art
The problem of cutting triaxial shear strength experimental measurements misalignment caused by Behavior of Hardened Cement Paste.
The utility model provides a kind of maintenance mould of hardened oilwell cement triaxial compressions sample, including mould body, bottom plate and
Cover board；
The mould body includes intermediate die plate and two side templates for being connected to the intermediate die plate two sides, it is described in
Between the two sides of template be respectively arranged at least one first semi-circular hole, be respectively arranged at least one on two side templates
Second semi-circular hole, first semi-circular hole and second semi-circular hole are for collectively constituting round hole；
The mould body is clamped and fixed between the bottom plate and the cover board, so that the round hole forms cylinder
Chamber, the cylindrical chamber starch for joints cement.
The maintenance mould of hardened oilwell cement triaxial compressions sample provided by the utility model can be placed in high temperature and pressure maintenance
It is conserved in kettle, molding cylinder Behavior of Hardened Cement Paste sample can be directly used for the test of Behavior of Hardened Cement Paste triaxial shear strength；In addition, maintenance mould
Tool is convenient for grout pouring, avoids the damage caused by the mode of traditional cutting sampling to sample, is conducive to obtain more
The experimental result of accurate triaxial compression test, and the dimensional accuracy of the Behavior of Hardened Cement Paste sample of form is higher；Maintenance mould knot
Structure is simple, is convenient for assembly and disassembly, reusable, reduces production cost.
Further, multiple positioning columns, the side are provided on the side wall towards the side template of the intermediate die plate
Multiple locating slots corresponding with the positioning column are provided on the side wall of template, the intermediate die plate and the side template pass through institute
Positioning column is stated to connect with the locating slot.
Further, the intermediate die plate is bolted part with the both ends of the side template and is fixedly connected, the spiral shell
Tether axis of the length direction perpendicular to the cylindrical chamber of fitting.
Further, the mould body, the bottom plate, the cover board center position first through hole, is respectively set
Two through-holes and third through-hole, the first through hole, second through-hole and the third through-hole are mutually aligned, for being inserted into fixation
Bar.
Further, the bottom plate, the cover board are identical with the length and width dimensions of the mould body.
Further, the maintenance mould is conserved for being placed in high temperature and pressure protective cauldron.
Further, the catercorner length of the mould body is less than the intracavity diameter of the curing autoclave.
Further, the quantity of the cylindrical chamber is four.
Further, the quadrangle of the bottom plate, the cover board and the mould body is disposed as fillet.
Further, the bottom plate, the cover board and the mould body are metal plate.
The maintenance mould of hardened oilwell cement triaxial compressions sample provided by the utility model can be placed in high temperature and pressure maintenance
It is conserved in kettle, molding cylinder Behavior of Hardened Cement Paste sample can be directly used for the test of Behavior of Hardened Cement Paste triaxial shear strength；In addition, maintenance mould
Tool is convenient for grout pouring, avoids the damage caused by the mode of traditional cutting sampling to sample, is conducive to obtain more
The experimental result of accurate triaxial compression test, and the dimensional accuracy of the Behavior of Hardened Cement Paste sample of form is higher；Maintenance mould knot
Structure is simple, is convenient for assembly and disassembly, reusable, reduces production cost；The mould body of maintenance mould passes through positioning column, positioning
Slot and bolt connection piece are fixedly connected, and structure is simple, and connection is reliable, are easily installed and are dismantled；Mould body, bottom plate and cover board pass through
Fixed column connection, it is easily operated.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the mould body of the maintenance mould of hardened oilwell cement triaxial compressions sample provided by the embodiment of the utility model
Overlooking structure diagram；
Fig. 2 is the decomposition diagram of mould body provided by the embodiment of the utility model；
Fig. 3 is the side view structure of the maintenance mould of hardened oilwell cement triaxial compressions sample provided by the embodiment of the utility model
Schematic diagram；
Fig. 4 is the side view in the direction A of Fig. 1；
Fig. 5 is the side view in the direction B of Fig. 1；
Fig. 6 is the structural schematic diagram of bottom plate provided by the embodiment of the utility model；
Fig. 7 is the structural schematic diagram of cover board provided by the embodiment of the utility model.
Appended drawing reference:
100- mould body
11- intermediate die plate
The first semi-circular hole of 111-
112- positioning column
12- side template
The second semi-circular hole of 121-
122- locating slot
13- round hole
14- cylindrical chamber
15- first through hole
200- bottom plate
The second through-hole of 21-
300- cover board
31- third through-hole
400- bolt connection piece
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below in conjunction in the utility model
The technical solution in the utility model is clearly and completely described in attached drawing, it is clear that described embodiment is that this is practical
Novel a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, belongs to the model of the utility model protection
It encloses.
Below with reference to the accompanying drawings and in conjunction with specific embodiments the utility model is described.
Fig. 1 is the mould body of the maintenance mould of hardened oilwell cement triaxial compressions sample provided by the embodiment of the utility model
Overlooking structure diagram, Fig. 2 are the decomposition diagram of mould body provided by the embodiment of the utility model, and Fig. 3 is the utility model
The side structure schematic view of the maintenance mould for the hardened oilwell cement triaxial compressions sample that embodiment provides, with reference to shown in Fig. 1-Fig. 3,
The utility model provides a kind of maintenance mould of hardened oilwell cement triaxial compressions sample, including mould body 100, bottom plate 200 and lid
Plate 300；
Mould body 100 includes intermediate die plate 11 and two side templates 12 for being connected to 11 two sides of intermediate die plate, centre
The two sides of template 11 are respectively arranged at least one first semi-circular hole 111, are respectively arranged at least one on two side templates 12
A second semi-circular hole 121, the first semi-circular hole 111 and the second semi-circular hole 121 are for collectively constituting round hole 13；Mould body
100 are clamped and fixed between bottom plate 200 and cover board 300, so that round hole 13 forms cylindrical chamber 14, cylindrical chamber 14
It is starched for joints cement.
Specifically, the application method of above-mentioned maintenance mould are as follows: assembling mould body 100 first, by intermediate die plate 11 and two
Side template 12 is fixedly connected；Secondly assembled mould body 100 is placed on bottom plate 200, by cement slurry well prepared in advance
It pours into cylindrical chamber 14；Then cover board 300 is covered, and is fixedly connected with cover board 300, mould body 100 and bottom plate 200；Again will
The maintenance mould of compression, which is put into high temperature and pressure protective cauldron, conserves certain age, takes out maintenance mould, demoulding, to molding cylinder
Shape Behavior of Hardened Cement Paste sample directly carries out triaxial shear strength test.
Wherein, mould body 100 is spliced by intermediate die plate 11 and side template 12, i.e. intermediate die plate 11 and two side templates
12 be all segment template, and three segment templates, which are combined, forms an integral mold plate, this spline structure is simple, is not only convenient for mould
The production of ontology 100 can also dismantle use repeatedly, effectively reduce production cost.
By the joints cement slurry directly production Behavior of Hardened Cement Paste sample into cylindrical chamber 14, traditional cutting sampling is avoided
Mode is damaged caused by Behavior of Hardened Cement Paste sample, thus the Behavior of Hardened Cement Paste sample for taking grouting way to make is conducive to obtain more accurately
Triaxial compression test experimental result.In turn, be in the milk the Behavior of Hardened Cement Paste sample of straight forming, size only with cylindrical chamber 14
Size it is related, dimensional accuracy than cutting formed Behavior of Hardened Cement Paste sample precision it is high, this also increases the essences of triaxial compression test
Degree.And the Behavior of Hardened Cement Paste sample molding mode of the utility model decreases cutting sample bring expense, manpower loss in time
Between on waste.
Specifically, bottom plate 200 is used to support mould body 100, and plays the role of closing the bottom of mould body 100, so that
The cement slurry for injecting cylindrical chamber 14, will not leak out from bottom.Cover board 200 is used to close the top of mould body 200, that is, blocks
The top of the cylindrical chamber 14 of mould body 100 avoids the cement slurry in cylindrical chamber 14 from overflowing from top.
In the present embodiment, the connection type of intermediate die plate 11 and side template 12 is not particularly limited, and selects threaded fastener
Or dismountable connection type such as snap-in structure.It should be noted that intermediate die plate 11 and side template 12 need closely
Connection, so that the first semi-circular hole 111 and the second semi-circular hole 121 form the round hole 13 of closure.Further, mould body
100 and the connection type of bottom plate 200, cover board 300 be not particularly limited in this embodiment, guarantee that mould body 100 is clamped in bottom
Between plate 200 and cover board 200, closed cylindrical chamber 14 can be formed.
In addition, the diameter of cylindrical Behavior of Hardened Cement Paste sample is determined by the diameter of round hole 13, the thickness of cylindrical Behavior of Hardened Cement Paste sample
Degree is determined by the thickness of mould body 100.The size of round hole 13 and the thickness of mould body 100, according to required obtained cylinder
Shape Behavior of Hardened Cement Paste sample is arranged.The quantity of round hole 13 can be multiple, with the multiple Behavior of Hardened Cement Paste samples of disposal molding, improve at
Type efficiency.The size of multiple round holes 13 is consistent, disposably to make multiple identical Behavior of Hardened Cement Paste samples.It is optional
Ground, multiple round holes 13 can have different sizes, to make various sizes of Behavior of Hardened Cement Paste sample simultaneously.
The maintenance mould of hardened oilwell cement triaxial compressions sample provided by the embodiment of the utility model, can be placed in high temperature height
It is conserved in pressure curing autoclave, molding cylinder Behavior of Hardened Cement Paste sample can be directly used for the test of Behavior of Hardened Cement Paste triaxial shear strength；In addition,
Maintenance mould is convenient for grout pouring, avoids the damage caused by the mode of traditional cutting sampling to sample, is conducive to
To the experimental result of more accurate triaxial compression test, and the dimensional accuracy of the Behavior of Hardened Cement Paste sample of form is higher；Maintenance
Mould structure is simple, is convenient for assembly and disassembly, reusable, reduces production cost.
More detailed embodiment is used below, and the structure of each component is described in detail.
Fig. 2 is the decomposition diagram of mould body provided by the embodiment of the utility model, refering to what is shown in Fig. 2, intermediate die plate 11
The side wall towards side template 12 on be provided with multiple positioning columns 112, be provided with multiple and positioning column on the side wall of side template 12
112 corresponding locating slots 122, intermediate die plate 11 and side template 12 are connected by positioning column 112 and locating slot 122.
In order to quickly connect intermediate die plate 11 and side template 12, positioning column 112 and locating slot 122 are set, positioning column is passed through
112 and locating slot 122 engaging, realize intermediate die plate 11 and side template 12 connection.Specifically, positioning column 112 and locating slot
122 quantity be it is multiple, be fixedly connected with the positioning for realizing more accurate with relatively reliable.Positioning column 112 and locating slot 122
Shape be not particularly limited in this embodiment, can be cylindrical structure or prismatic structures, guarantee 112 He of positioning column
Locating slot 122 matches.The interface of intermediate die plate 11 and side template 12 is arranged in positioning column 112 and locating slot 122
On side wall, the presence of positioning column 112 and locating slot 122 need to be guaranteed on the structure of cylindrical chamber 14 and intensity without influence.
It is obvious also possible to set the connection structure of intermediate die plate 11 and side template 12 to, intermediate die plate 11 towards side
It is provided with multiple locating slots on the side wall of template 12, multiple positioning corresponding with locating slot are provided on the side wall of side template 12
Column.Alternatively, being provided with multiple positioning columns and locating slot, the side of side template 12 on the side wall towards side template 12 of intermediate die plate 11
Multiple locating slots corresponding with the positioning column and locating slot and positioning column are provided on wall.
In order to further fix intermediate die plate 11 and side template 12, in the present embodiment, intermediate die plate 11 and side template 12
Both ends are bolted part 400 and are fixedly connected, the axis of the length direction of bolt connection piece 400 perpendicular to cylindrical chamber 14
Line.Fig. 1 is the vertical view of the mould body of the maintenance mould of hardened oilwell cement triaxial compressions sample provided by the embodiment of the utility model
Structural schematic diagram, Fig. 4 are the side view in the direction A of Fig. 1, and Fig. 5 is the side view in the direction B of Fig. 1, with reference to Fig. 1, Fig. 4 and Fig. 5 institute
Show, it is clear that the both ends of intermediate die plate 11 and side template 12 should be provided with perforative threaded connection hole, be used for threaded connector 400
It is fixedly connected with intermediate die plate 11 and two side templates 12.Bolt connection piece 400 can further sting tight intermediate die plate 11 and two sides
Side template 12, prevent cement slurry from leaking out.
Fig. 6 is the structural schematic diagram of bottom plate provided by the embodiment of the utility model, and Fig. 7 provides for the utility model embodiment
Cover board structural schematic diagram, continue to refer to figure 1, Fig. 3 and Fig. 6, Fig. 7, mould body 100, bottom plate 200, cover board 300 centre bit
First through hole 15, the second through-hole 21 and third through-hole 31, first through hole 15, the second through-hole 21 and third through-hole is respectively set in the place of setting
31 are mutually aligned, for being inserted into fixed link (not shown).The diameter of first through hole 15, the second through-hole 21 and third through-hole 31
It is identical, it is inserted into fixed link after three is aligned, mould body 100, bottom plate 200, cover board 300 can be realized and be fixedly connected.The company
The mode of connecing has the advantages of simple structure and easy realization, and is easily installed and dismantles.
Optionally, mould body 100, bottom plate 200,300 three of cover board connection type can have other selections.For example,
The quadrangle setting of mould body 100, bottom plate 200, cover board 300 runs through through-hole, is connected by fasteners such as bolts.Or in mould body
100, mutually matched boss and card slot are set on bottom plate 200 and cover board 300, three is made to be connected together.
On the basis of the above embodiments, bottom plate 200, cover board 300 are identical with the length and width dimensions of mould body 100.Bottom plate
200, cover board 300 is identical with the length and width dimensions of mould body 100, is conducive to the design of three's connection structure, and improves maintenance mould
Has whole harmony.
In the present embodiment, maintenance mould is conserved for being placed in high temperature and pressure protective cauldron.High temperature and pressure oil/gas well
Different operating conditions can be born in full pit shaft life cycle, Behavior of Hardened Cement Paste is easy to that mechanics failure occurs under the load of different operating conditions,
The Behavior of Hardened Cement Paste sample of the curing autoclave maintenance of normal temperature environment, can not represent the true Service Environment of high temperature and pressure oil/gas well completely.Cause
This, maintenance mould prevent from carrying out in high temperature and pressure protective cauldron maintenance be very it is necessary to.It should be noted that if to make
Behavior of Hardened Cement Paste sample under standby non high temperature condition of high voltage, maintenance mould provided by the embodiment of the utility model can also be supported in common
It is conserved in shield kettle.
Further, the catercorner length of mould body 100 is less than the intracavity diameter of curing autoclave.The inner cavity of curing autoclave is generally
Cylindrical structure, in order to smoothly be put into maintenance mould wherein, it shall be noted that the diagonal line mold of maintenance mould is less than curing autoclave
Intracavity diameter.Bottom plate 200, cover board 300 are consistent with the catercorner length of mould body 100, smaller than the intracavity diameter of curing autoclave.
The application method of the maintenance mould of hardened oilwell cement triaxial compressions sample provided by the embodiment of the utility model are as follows: first
Mould body 100 is first assembled, grease will be uniformly smeared on the contact surface of clean intermediate die plate 11 and side template 12, alignment is fixed
Position column 112 and locating slot 122, intermediate die plate 11 and two side templates 12 are spliced, by 12 both ends of intermediate die plate 11 and side template
Part 400 is connected with to tighten；Secondly assembled mould body 100 is placed on bottom plate 200, by cement well prepared in advance
Slurry pours into cylindrical chamber 14；Then cover board 300 is covered；Fixed link is passed through to third through-hole 31, first through hole from top to bottom
15 and second through-hole 21, with connecting cover plate 300, mould body 100 and bottom plate 200；Then the maintenance mould of compression is put into high temperature
Certain age is conserved in high-pressure curing kettle, takes out maintenance mould, and demoulding directly carries out three to molding cylindrical Behavior of Hardened Cement Paste sample
Axis compressive strength test.
Wherein, the specific mistake of demoulding is known as: will be inserted in third through-hole 31, first through hole 15 and the second through-hole 21 first
Fixed link take out, then cover board 300 is removed, then the bolt connection piece 400 at both ends is unloaded, separate intermediate die plate 11 and two
A side template 12, then molding cylindrical Behavior of Hardened Cement Paste sample is directly detached from from maintenance mould.
In the present embodiment, the quantity of cylindrical chamber 14 is four.At this point, the two sides of intermediate die plate 11 are respectively arranged with two
A first semi-circular hole 111 is respectively set on two side templates 12 there are two the second semi-circular hole 121, and four first semicircle
Hole 111 and four the second semi-circular holes 121 form four round holes 13.The quantity of cylindrical chamber 14 is four, i.e. maintenance mould
Tool once conserves plastic four cylindrical Behavior of Hardened Cement Paste samples, and it greatly improves the producing efficiency of Behavior of Hardened Cement Paste sample.
The quantity of cylindrical chamber 14 determines the quantity of molding cylindrical Behavior of Hardened Cement Paste sample.The molding of Behavior of Hardened Cement Paste sample
Age changes with the difference of temperature and pressure, and is influenced by the shape and size of mold, therefore, sets to curing age
Set the range for generally rule of thumb obtaining and being closer to theoretical knowledge.In the actual operation process, need to be arranged different support
Stage length of service as a nurse phase, such as respectively take out a cylindrical Behavior of Hardened Cement Paste sample after maintenance 24 hours and 36 hours and tested, it determines
Whether cylindrical Behavior of Hardened Cement Paste sample forms completely.And in the test of specific triaxial shear strength, need to measure multi-group data, with
Improve the accuracy of data.Therefore, it is very necessary that setting maintenance mould, which once conserves plastic multiple Behavior of Hardened Cement Paste samples,.
On the basis of above-mentioned utility model embodiment, the quadrangle of bottom plate 200, cover board 300 and mould body 100 is disposed as
Fillet.Bottom plate 200, cover board 300 and 100 rigidity of mould body are big, and quadrangle is sharp, are easy the inner wall of scratch curing autoclave or bump to
Operator and other tools, from the point of view of improving safety, by the quadrangle of bottom plate 200, cover board 300 and mould body 100
It is disposed as fillet.
Optionally, bottom plate 200, cover board 300 and mould body 100 are metal plate.Bottom plate 200, cover board 300 and mould body
100 need to be placed in high temperature and pressure protective cauldron and conserve, thus its must high temperature resistant, intensity it is high.Therefore, select metal as feeding
The material for protecting mold is preferably to select, and can be the metal plates such as stainless steel, alloy specifically.
The maintenance mould of hardened oilwell cement triaxial compressions sample provided by the embodiment of the utility model, can be placed in high temperature height
It is conserved in pressure curing autoclave, molding cylinder Behavior of Hardened Cement Paste sample can be directly used for the test of Behavior of Hardened Cement Paste triaxial shear strength；In addition,
Maintenance mould is convenient for grout pouring, avoids the damage caused by the mode of traditional cutting sampling to sample, is conducive to
To the experimental result of more accurate triaxial compression test, and the dimensional accuracy of the Behavior of Hardened Cement Paste sample of form is higher；Maintenance
Mould structure is simple, is convenient for assembly and disassembly, reusable, reduces production cost；The mould body of maintenance mould passes through positioning
Column, locating slot and bolt connection piece are fixedly connected, and structure is simple, and connection is reliable, are easily installed and are dismantled；Mould body, bottom plate and
Cover board is connected by fixed column, easily operated.
In the description of the present invention, it should be understood that used term " center ", " length ", " width ",
" thickness ", " top ", " bottom end ", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outside" " axis
To ", the indicating positions such as " circumferential direction " or positional relationship be to be based on the orientation or positional relationship shown in the drawings, be merely for convenience of describing
The utility model and simplified description, rather than the position of indication or suggestion meaning or original part must have a particular orientation, with spy
Fixed construction and operation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is at least two, example
Such as two, three, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. shall be understood in a broad sense, such as may be a fixed connection, may be a detachable connection, or be integrally formed；It can be machinery
Connection is also possible to be electrically connected or can communicate with each other；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, the connection inside two elements or the interaction relationship of two elements can be made.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of maintenance mould of hardened oilwell cement triaxial compressions sample characterized by comprising mould body, bottom plate and cover board；
The mould body includes intermediate die plate and two side templates for being connected to the intermediate die plate two sides, the intermediate die
The two sides of plate are respectively arranged at least one first semi-circular hole, be respectively arranged on two side templates at least one second
Semi-circular hole, first semi-circular hole and second semi-circular hole are for collectively constituting round hole；
The mould body is clamped and fixed between the bottom plate and the cover board, so that the round hole forms cylindrical cavity
Room, the cylindrical chamber starch for joints cement.
2. maintenance mould according to claim 1, which is characterized in that the side towards the side template of the intermediate die plate
It is provided with multiple positioning columns on wall, multiple locating slots corresponding with the positioning column, institute are provided on the side wall of the side template
It states intermediate die plate and is connected by the positioning column with the locating slot with the side template.
3. maintenance mould according to claim 2, which is characterized in that the both ends of the intermediate die plate and the side template are logical
It crosses bolt connection piece to be fixedly connected, the axis of the length direction of the bolt connection piece perpendicular to the cylindrical chamber.
4. maintenance mould according to claim 3, which is characterized in that the mould body, the bottom plate, in the cover board
First through hole, the second through-hole and third through-hole, the first through hole, second through-hole and described are respectively set at heart position
Three through-holes are mutually aligned, for being inserted into fixed link.
5. maintenance mould according to claim 1, which is characterized in that the bottom plate, the cover board and the mould body
Length and width dimensions are identical.
6. maintenance mould according to claim 5, which is characterized in that the maintenance mould is supported for being placed in high temperature and pressure
It is conserved in shield kettle.
7. maintenance mould according to claim 6, which is characterized in that the catercorner length of the mould body is less than described support
Protect the intracavity diameter of kettle.
8. maintenance mould according to claim 1, which is characterized in that the quantity of the cylindrical chamber is four.
9. maintenance mould according to claim 1-8, which is characterized in that the bottom plate, the cover board and described
The quadrangle of mould body is disposed as fillet.
10. maintenance mould according to claim 1-8, which is characterized in that the bottom plate, the cover board and described
Mould body is metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896339A (en) * | 2020-06-17 | 2020-11-06 | 长江大学 | Cement stone curing mold and dynamic gas corrosion experimental device |
| CN114136748A (en) * | 2021-11-26 | 2022-03-04 | 华中科技大学 | Mold and method for preparing resin sand high-temperature compressive strength test sample |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896339A (en) * | 2020-06-17 | 2020-11-06 | 长江大学 | Cement stone curing mold and dynamic gas corrosion experimental device |
| CN111896339B (en) * | 2020-06-17 | 2023-08-01 | 长江大学 | Cement stone maintenance mould and dynamic gas corrosion experimental device |
| CN114136748A (en) * | 2021-11-26 | 2022-03-04 | 华中科技大学 | Mold and method for preparing resin sand high-temperature compressive strength test sample |
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