CN109765162A - A kind of quickly and easily well-cementing cement permeability test device - Google Patents
A kind of quickly and easily well-cementing cement permeability test device Download PDFInfo
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- CN109765162A CN109765162A CN201910221010.0A CN201910221010A CN109765162A CN 109765162 A CN109765162 A CN 109765162A CN 201910221010 A CN201910221010 A CN 201910221010A CN 109765162 A CN109765162 A CN 109765162A
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- 239000004568 cement Substances 0.000 title claims abstract description 82
- 230000035699 permeability Effects 0.000 title claims abstract description 35
- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 239000004575 stone Substances 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000010079 rubber tapping Methods 0.000 claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 18
- 230000001276 controlling effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
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Abstract
The invention belongs to specific Behavior of Hardened Cement Paste permeability the field of test technology, and in particular to a kind of quickly and easily well-cementing cement permeability test device, water storage device include cabinet；Water inlet on cabinet is equipped with the first connector, and the first connector with water feeding tank or high-pressure air source for connecting；The bottom of box is equipped with leakage fluid dram；It is additionally provided with pressurization mouth on cabinet, is connect with external supercharging device；There is liquid surface height controlling device in cabinet, water inlet is located at the top of liquid surface height controlling device, bottom is equipped with hollow rubber ball；The bottom of box is connect by the second connector with the third connector of Behavior of Hardened Cement Paste die top, and third connector is also connected with the first external tapping, the first external tapping cut-in pressure table；The 4th connector connected below cement stone mould is equipped with electronic scale, and the 4th connector is also connected with the second external tapping, the second external tapping cut-in pressure table.The present invention can be utilized respectively gas or liquid test medium Behavior of Hardened Cement Paste permeability, can be equipped with multiple cement stone moulds simultaneously to carry out batch operation, improve efficiency.
Description
Technical field
The invention belongs to specific Behavior of Hardened Cement Paste permeability the field of test technology, and in particular to a kind of quickly and easily cementing concrete
Stone permeability test device.
Background technique
The output of the unconventional energy resource such as the conventional energy resources such as petroleum, natural gas and gas hydrates, shale gas requires
By the process of a series of complex, wherein include mainly drilling well, well cementation and complete well, and the quality of cementing quality is directly related to well
Production Life, the economy and sustainability of exploitation are played a crucial role.Well cementation mainly includes oil gas target zone
Well cementation and drilling well midway are cemented the well, and purpose is all mainly to safeguard the long-time stability on borehole wall stratum, and the well cementation of oil-gas Layer is also wrapped
Packing adjacent earth formations are included to prevent oil gas in crossflow, and insulate non-output layer, allow petroleum resources in an orderly manner from design channel
Middle output, to also avoid a series of generation of the accidents such as blowouts, well slough, leakage.
Cement slurry is prepared in the additive for being added certain, casing and ground interlayer are imported by certain process
Annular space, formed have some strength Behavior of Hardened Cement Paste, and reach protection borehole wall stratum stability and packing adjacent earth formations mesh
Process be just called well cementation.The quality of cementing quality depends primarily on the cementing strength and packing ability of second interface, and this is all
It is closely related with permeability.Common Behavior of Hardened Cement Paste permeability test method mainly passes through Darcy's law, with high-pressure inert gas
It is measured for medium, needs to add certain confining pressure in the process, to prevent gas clearance flow between sample surfaces and rubber intermode
It crosses, influences the accuracy of result.Because whole process needs to use high pressure gas, and needs to apply confining pressure, then test device
With regard to particularly significant, but actually, the air-tightness of sample surfaces and rubber intermode is generally difficult to directly judge air-tightness.And it makes
Sample when needing to use sample making mold and the test of corresponding size when the sample to be tested of sizes (diameter) different with test
Clamping mold, cost can be made to greatly improve.
Summary of the invention
In view of the above problems, the present invention provides a kind of well-cementing cement permeability test device quick and portably, the dress
The tested media set is available, and does not need to buy, and self-control is convenient；By the use of cement stone mould and quick coupling, it is not necessarily to
Sample in the sample making mold and test process of matched sizes clamps mold, greatly reduces instrument cost.Also
The modularization that can be become entire apparatus by the use of quick coupling is installed, dismantles and is replaced and is convenient and efficient.
A kind of quickly and easily well-cementing cement permeability test device, including water storage device, cement stone mould, water supply
Case, high-pressure air source；The water storage device includes cabinet；Water inlet on cabinet is equipped with the first connector, the first connector be used for
Water feeding tank or high-pressure air source connection；The bottom of box is equipped with leakage fluid dram；It is additionally provided with pressurization mouth on cabinet, connects with external supercharging device
It connects；There is liquid surface height controlling device in cabinet, water inlet is located at the top of liquid surface height controlling device, bottom is equipped with hollow rubber ball；
The bottom of box is connect by the second connector with the third connector of Behavior of Hardened Cement Paste die top, and the third connector also connects
Connect the first external tapping, the first external tapping cut-in pressure table；
The 4th connector connected below cement stone mould is equipped with electronic scale, and the 4th connector is also connected with the second external tapping, described
The second external tapping cut-in pressure table.
Seat under the cement stone mould, including cement stone mould upper cover, cement stone mould is set in cement stone mould upper cover
There is third connector, seat is equipped with the 4th connector under cement stone mould；Pass through between seat under cement stone mould upper cover and cement stone mould
It is threadedly coupled, junction is equipped with O-ring seals.
First connector, the second connector, third connector, the 4th connector are plug-in type quick coupling, are connect according to various sizes of
The selection of head can be connect with different type/size pressure line.Pressurization mouth on cabinet can be connect with external supercharging device with
Increase the intracorporal pressure of case.The upstream pressure needed for test sample is larger, and fluid low is in cabinet to provide required pressure
When, pressure can be improved by the pressurization of pressurization mouth.Sample permeability survey medium can also use gas instead, at this point, cabinet by with original
The water feeding tank connection come becomes connecting with high-pressure air source.
Well-cementing cement permeability test device can measure the permeability of Behavior of Hardened Cement Paste sample by liquid or gas medium, and
Pressure is flexibly adjustable.
A kind of quickly and easily well-cementing cement permeability test device provided by the invention, cement stone mould and fast quick access
The use of head, prepares Behavior of Hardened Cement Paste sample, and sample can be conserved in curing box, condition is flexibly adjustable, just in which can be convenient
It is especially suitable in the changing rule for understanding and grasping the permeability of different well-cementing cement formulas and Behavior of Hardened Cement Paste under each state
For in high volume testing, sample curing time can be saved by the use of multiple cement stone moulds.Relative to traditional permeability
Test method, the present invention in without sample making mold and test when sample clamping mold, substantially reduce instrument cost.It will seep
Saturating rate test device becomes modularization, can quickly and easily install, all parts in displacement apparatus, easy to use, easy to operate.
Device can need to carry out by head of liquid or external high-pressure air source according to experiment the measurement of permeability, and measurement method multiplicity subtracts
Few testing cost, facilitates operation easy to get started.The gas or liquid medium of test can also be made by oneself simultaneously.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is Behavior of Hardened Cement Paste mold side structure schematic view；
Fig. 3 is cement stone mould overlooking structure diagram.
Specific embodiment
The specific technical solution of the present invention is described with reference to the drawings.
A kind of quickly and easily well-cementing cement permeability test device, including water storage device, cement stone mould 7, water supply
Case 14, high-pressure air source 13；The water storage device includes cabinet 1；Water inlet on cabinet 1 is equipped with the first connector 91, and first connects
First 91 with water feeding tank 14 or high-pressure air source 13 for connecting；1 bottom of cabinet is equipped with leakage fluid dram 10；Pressurization mouth is additionally provided on cabinet 1
12, it is connect with external supercharging device；There is liquid surface height controlling device 2 in cabinet 1, is located at water inlet at the top of liquid surface height controlling device 2
Place, bottom are equipped with hollow rubber ball 4；
1 bottom of cabinet is connect by the second connector 92 with the third connector 93 at 7 top of cement stone mould, and the third connects
First 93 are also connected with the first external tapping 61, the 61 cut-in pressure table of the first external tapping；
The 4th connector 94 connected below cement stone mould 7 is equipped with electronic scale 8, and the 4th connector 94 is also connected with the second external tapping
62, the 62 cut-in pressure table of the second external tapping.
Seat 17 under the cement stone mould 7, including cement stone mould upper cover 15, cement stone mould, on cement stone mould
Lid 15 is equipped with third connector 93, and seat 17 is equipped with the 4th connector 94 under cement stone mould；Cement stone mould upper cover 15 and Behavior of Hardened Cement Paste
It is connected through a screw thread between seat 17 under mold, junction is equipped with O-ring seals 20.
Including water storage device, water storage device includes cabinet 1；First connector 91 of water inlet is that plug-in type is quick on cabinet 1
Connector, and inside and outside connection can be with according to the selection of various sizes of first connector 91 for injecting/trickle (or gas)
The connection of different type/size pressure line.Leakage fluid dram 10 on cabinet 1 is for being discharged surplus liquid, the pressurization mouth on cabinet 1
12 can connect to increase the pressure in cabinet 1 with external supercharging device.There are liquid surface height controlling device 2, liquid level control in cabinet 1
Device 2 processed includes hollow rubber ball 4.When measure quality be liquid when, liquid surface height controlling device 2 work, i.e., when in cabinet 1 water level reach
To when requiring position, hollow rubber ball 4 is risen by buoyancy, the clogging water inlet of liquid surface height controlling device 2, prevent water flow after
Afterflow enters in cabinet 1, and when water level decreasing in cabinet 1, hollow rubber ball 4 can also fall therewith, and at this moment, water inlet will continue to
Water inlet.The water level of cabinet 1 can be fixed in this way and require position, even if sample to be tested upstream keeps steady pressure.Meanwhile it can
By regulating liquid surface height controller 2 the intracorporal height of case to come adjust stablize after liquid level height.In addition, working as test specimens
Upstream pressure needed for product is larger, and when fluid low is in cabinet 1 to provide required pressure, it can be mentioned by the pressurization of pressurization mouth 12
High pressure.Sample to be tested upstream pressure can be calculated by liquid level and be obtained, if required precision is higher, then need to be included in pipeline
The pressure loss of fluid, at this time can by theoretical calculation or 61 cut-in pressure table of the first external tapping carry out calibration obtain.
Sample permeability survey medium can also use gas instead, at this point, cabinet 1 from connect with original water feeding tank 14 become with
High-pressure air source 13 connects, and pressure needed for testing is provided by high-pressure air source 13, and at the same time, liquid surface height controlling device 2 is in normally opened
State, and cabinet 1 mainly plays pressure stabilization function；Or usable inflator is pressurizeed by the mouth 12 that pressurizes into water tank, and cabinet 1 is made
Middle pressure increases to desired value, and using air as tested media, liquid surface height controlling device 2 does not work at this time, and cabinet 1 is used as high pressure gas
Source.Sample to be tested upstream pressure can be read by high-pressure air source pressure gauge, or cut-in pressure table can be measured at external tapping 6
Out, and sample downstream pressure be normal atmospheric pressure.In addition, access flow agent to measure flows through sample at downstream external tapping 6
Gas flow.In the exit of cabinet 1, the second connector 92 can be quick coupling, be selected by the types/dimensions of quick coupling
The pressure line that can connect different size is selected, to meet different experiments needs.
It is connected through a screw thread between seat 17 under the cement stone mould upper cover 15 and cement stone mould of cement stone mould 7, and logical
O-ring seals 20 are crossed to be sealed, it is simple and durable using the form of end face means of press seals.In the measurement process of permeability, to test sample
The downstream pressure of product is usually standard atmospheric pressure, and the 4th connector 94 of cement stone mould 7 can be substituted by general connector at this time.And work as
When requirement of experiment downstream pressure is not standard atmospheric pressure, quick coupling is selected, and be connected with pressure line and the second external tapping 62,
External gauge measurement downstream pressure can be aided with.
Well-cementing cement permeability test device can measure the permeability of Behavior of Hardened Cement Paste sample by liquid or gas medium, and
Pressure is flexibly adjustable, and the measurement of pressure can be connect pressure gauge and be measured by the first external tapping 61, the second external tapping 62, can also
It is obtained with the pressure loss that the difference in height by liquid to sample to be tested subtracts fluid in pipeline.Device many places use quick coupling
Making system modular, each subassembly selection is flexible, and installation and replacement are convenient, and it is easily operated, save the time.
One of usage mode:
For experiment purpose mainly using distilled water as the permeability of Medium Measurement different formulations Behavior of Hardened Cement Paste, analysis Behavior of Hardened Cement Paste is different
Influence situation of the component to permeability.
It is the preparation of sample to be tested 18 first, according to experimental design, is weighed needed for production single sample respectively
Weighed substance is respectively implanted in stirring vessel simultaneously by cement, water and additive quality according to cement slurry standard preparation flow
It is sufficiently stirred using blender, is then poured into the cement slurry made in cement stone mould 7 (not higher than highest scale
Line), vertical tremor mold is to exclude the bubble in cement slurry, to reduce experimental error.Then cement stone mould 7 is put into maintenance
In case, the time required to maintenance at the temperature, humidity set by experimental program.In experimentation, using multiple Behavior of Hardened Cement Paste moulds
Tool 7 prepares the Behavior of Hardened Cement Paste of different formulations simultaneously, to reduce experiment spent time, improves working efficiency.It will conserve to test sample
Product 18 take out from curing box, using vaseline or wax by (potential) gap 21 between seat 17 under sample to be tested 18 and cement stone mould
It blocks, then covers cement stone mould upper cover 15, the pressure line 5 of 7 upper and lower of cement stone mould is connected by quick coupling.
Then permeability test operation is carried out, whole device is attached as shown in Figure 1, wherein the first external tapping 61 is in
4th connector 94 of normally off, 7 downstream of cement stone mould can save, and cabinet 1 passes through the first connector 91 and 14 phase of water feeding tank
Even, pressure line 5 can select suitable specification according to pressure value.Then appropriate distilled water is injected into water feeding tank 14 and cabinet 1,
Liquid level in cabinet 1 is adjusted by liquid surface height controlling device 2,5 upper switch of pressure line is opened and flows liquid through sample to be tested
18, at 18 downstream water outlet of sample to be tested when waterflow stabilization, the quality m of the liquid of sample to be tested 18 is flowed through in time of measuring t.It is real
Record 18 height L of sample to be tested during testing, liquid level is to the height to sample upper surface in example cross section product A and water tank 1
Spend H.
In conjunction with Darcy's lawSample permeability may be expressed as:
In formula, μ-water viscosity；ρ-water density；G-acceleration of gravity.
In experimentation, if cement sample permeability is lower, liquid level is mentioned to the height H to sample upper surface in cabinet 1
The insufficient pressure of confession is to flow liquid through sample to be tested, then using inflator, by the pressurization mouth 12 on cabinet 1 to cabinet 1
Apply certain gas pressure P0, change the pressure condition of 18 upstream of sample to be tested.Sample permeability may be expressed as: at this time
The two of usage mode:
Experiment purpose analyzes cement mainly using external high-pressure air source as the permeability of Medium Measurement different formulations Behavior of Hardened Cement Paste
Influence situation of the stone different component to permeability.
Method in one of the preparation method of sample to be tested and usage mode is identical, in permeability test operating procedure then
There is certain difference.Whole device is attached as shown in Figure 1, wherein cabinet 1 passes through the first connector 91 and 13 phase of high-pressure air source
It connects, the first external tapping 61 connects pressure gauge, and the 4th connector 94 in 7 downstream of cement stone mould can save, and pressure line 5 selects metal
High pressure resistant pipeline.Using gas as medium in test process, cabinet 1 is without adding water at this time, and mainly plays pressure stabilization function, and hollow rubber
Glueballs 4 is located at 2 bottom of liquid surface height controlling device by gravity, and liquid surface height controlling device 2 does not work.
High-pressure air source 13 is opened, pressure in cabinet 1 is made to gradually rise to desired value, then opens 5 upper switch of pressure line
Gas medium is set to flow through sample to be tested 18.18 height L of sample to be tested, example cross section product A, sample upstream are recorded in experimentation
Pressure and flow Q.In conjunction with Darcy's law, sample permeability be may be expressed as:
In formula, μ-water viscosity；P0- normal atmospheric pressure.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in the principle of the present invention and
Within content, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of quickly and easily well-cementing cement permeability test device, which is characterized in that including water storage device, Behavior of Hardened Cement Paste mould
Have (7), water feeding tank (14), high-pressure air source (13)；The water storage device includes cabinet (1)；Water inlet on cabinet (1) is equipped with
First connector (91), the first connector (91) with water feeding tank (14) or high-pressure air source (13) for connecting；Cabinet (1) bottom is equipped with row
Liquid mouth (10)；It is additionally provided with pressurization mouth (12) on cabinet (1), is connect with external supercharging device；There is liquid surface height controlling in cabinet (1)
Device (2), liquid surface height controlling device (2) top are located at water inlet, and bottom is equipped with hollow rubber ball (4), liquid surface height controlling device
(2) height in cabinet (1) can be adjusted freely；
Cabinet (1) bottom is connect by the second connector (92) with the third connector (93) at the top of cement stone mould (7), and described the
Three connectors (93) are also connected with the first external tapping (61), and first external tapping (61) can access pressure gauge；
The 4th connector (94) connected below cement stone mould (7) is equipped with electronic scale (8), and the 4th connector (94) is also connected with outside second
Interface (62), second external tapping (62) can access pressure gauge.
2. a kind of quickly and easily well-cementing cement permeability test device according to claim 1, which is characterized in that institute
The cement stone mould (7) stated, including seat (17) under cement stone mould upper cover (15), cement stone mould, cement stone mould upper cover
(15) third connector (93) are equipped with, seat (17) is equipped with the 4th connector (94) under cement stone mould；Cement stone mould upper cover (15)
And be connected through a screw thread between seat (17) under cement stone mould, junction is equipped with O-ring seals (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910221010.0A CN109765162A (en) | 2019-03-22 | 2019-03-22 | A kind of quickly and easily well-cementing cement permeability test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910221010.0A CN109765162A (en) | 2019-03-22 | 2019-03-22 | A kind of quickly and easily well-cementing cement permeability test device |
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| Publication Number | Publication Date |
|---|---|
| CN109765162A true CN109765162A (en) | 2019-05-17 |
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ID=66459774
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| CN201910221010.0A Pending CN109765162A (en) | 2019-03-22 | 2019-03-22 | A kind of quickly and easily well-cementing cement permeability test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112846A (en) * | 2021-11-19 | 2022-03-01 | 西安石油大学 | Rock permeability measuring device for geology |
| CN114136877A (en) * | 2021-12-10 | 2022-03-04 | 成都理工大学 | Device and method for monitoring cementing strength of cement paste for anchor cable |
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| CN102411044A (en) * | 2011-12-05 | 2012-04-11 | 中国石油大学(华东) | Diagenesis simulation experimental apparatus and method |
| CN102830057A (en) * | 2012-09-10 | 2012-12-19 | 西南石油大学 | Evaluating method for corrosion of well-reinforcing cement stone |
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Application publication date: 20190517 |