CN108868746A - The anti-experimental provision and its experimental method for altering ability of test well cementation cement plane - Google Patents
The anti-experimental provision and its experimental method for altering ability of test well cementation cement plane Download PDFInfo
- Publication number
- CN108868746A CN108868746A CN201810607746.7A CN201810607746A CN108868746A CN 108868746 A CN108868746 A CN 108868746A CN 201810607746 A CN201810607746 A CN 201810607746A CN 108868746 A CN108868746 A CN 108868746A
- Authority
- CN
- China
- Prior art keywords
- cement
- pressure
- well cementation
- temperature
- confining pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004568 cement Substances 0.000 title claims abstract description 229
- 238000012360 testing method Methods 0.000 title claims abstract description 69
- 238000002474 experimental method Methods 0.000 title claims abstract description 28
- 238000004088 simulation Methods 0.000 claims abstract description 84
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 238000002347 injection Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 23
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 20
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 85
- 239000007788 liquid Substances 0.000 claims description 66
- 239000012530 fluid Substances 0.000 claims description 56
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 14
- 229910052786 argon Inorganic materials 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000013401 experimental design Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000008859 change Effects 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/005—Monitoring or checking of cementation quality or level
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Quality & Reliability (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention is a kind of anti-experimental provision and its experimental method for altering ability of test well cementation cement plane, simulation part is exploited including shale, it includes simulated formation, cement sheath annular space and analog casing that shale, which exploits simulation part, confining pressure chamber is arranged in the outside of simulated formation, in cement sheath annular space can feedingization cement slurry constitute simulation cement sheath, the contact surface composition between simulation cement sheath and analog casing is cemented the well cement plane；Pressurizing device is sealedly connected on shale exploitation simulation part；Heating device is equipped in analog casing；The outer wall of analog casing is equipped with cementing quality detector；Simulation cement sheath sealing is communicated with gas injection device, and the top of cement sheath annular space is arranged gas detecting instrument, and test well cementation cement plane is anti-, and to alter the experimental provision of ability further include control unit.The anti-experimental provision and its experimental method for altering ability of test well cementation cement plane, the anti-ability of altering for the cement plane that can cement the well under analog study different temperatures pressures cycle times condition truly and effectively.
Description
Technical field
The present invention relates to circulating temperature pressure different in Oil-Gas Well Engineering field more particularly to a kind of shale gas fracturing process
Under the conditions of the anti-experimental provision and its experimental method for altering ability of test well cementation cement plane.
Background technique
Shale gas reservoir belongs to low porosity and low permeability untraditional reservoir, and conventional exploitation means are difficult to obtain economic benefit, need to use
Business air-flow could be obtained by so that shale formation is formed complicated artificial seam net to hydraulic fracturing technology, but hydraulic fracturing pump pressure is high,
Discharge capacity is big, and casing-cement sheath-stratum of nearly near wellbore is made to bear higher casing internal pressure and temperature change.
Especially multistage subsection pressure break is difficult to ensure the integrality of pit shaft more, and site operation data prove：Certain shale
Ratio of the annular space with kill-job is no more than 10% before the pressure break of gas field, and ratio of the annular space with kill-job is said then more than 50% after pressure break
Bright annular space is with pressure to have significant relation with hydraulic fracturing, and live well head gas physical examination geodesic structure is thought：Nearly well during multistage fracturing
Nearby alternately variation leads to cement plane deterioration of cementing the well to temperature, pressure to cylinder, and the anti-anti- liquid of gas alters logical ability decline, formation gas along
Altering on well cementation cement plane to well head causes annular space with pressure.
Therefore, it is based on the characteristics of shale gas hydraulic fracturing, studies cement plane of cementing the well under different circulating temperature pressure conditions
The anti-ability of altering is of great significance.But existing experimental provision cannot simulate under different temperatures pressures cycle times condition admittedly
The anti-ability of altering of well cement plane and the bonding quality of cement plane bring obstruction for experimental study.
The present inventor based on years of experience and practice in relevant industries, proposes a kind of test well cementation cement plane as a result,
The anti-experimental provision and its experimental method for altering ability realizes the anti-ability of altering for cement plane of cementing the well under different circulating temperature pressure conditions
Research.
Summary of the invention
The anti-experimental provision and its experimental method for altering ability of well cementation cement plane is tested the purpose of the present invention is to provide a kind of,
Can be cemented the well under analog study different temperatures pressures cycle times condition the anti-ability of altering of cement plane truly and effectively.
The object of the present invention is achieved like this, a kind of anti-experimental provision for altering ability of test well cementation cement plane, including is in
The shale of sealed set exploits simulation part, and the shale exploitation simulation part includes the simulation being sequentially coaxially arranged from the outside to the core
Confining pressure chamber is arranged in layer, cement sheath annular space and analog casing, the outside of the simulated formation, can feedingization water in the cement sheath annular space
Mud constitutes simulation cement sheath, and the contact surface between the simulation cement sheath and the analog casing constitutes well cementation cement plane；Institute
State the pressurizing device being sealedly connected on shale exploitation simulation part for adjusting the shale exploitation simulation part internal pressure；It is described
The heating device for adjusting the shale exploitation simulation part internal temperature is equipped in analog casing；The outer wall of the analog casing
Middle part is equipped with cementing quality detector；The position seals for being located at well cementation cement plane lower part in the simulation cement sheath are communicated with gas injection
Gas detecting instrument is arranged in the top of device, the cement sheath annular space, and the outer wall of the gas detecting instrument and the analog casing supports
By contact；Test well cementation cement plane is anti-, and to alter the experimental provision of ability further include control unit, the control unit and the pressurization
Device, the heating device, the cementing quality detector, the gas detecting instrument and gas injection device electrical connection.
In a preferred embodiment of the present invention, the pressurizing device include the first hydraulic piston structure, it is second hydraulic
Piston structure and third hydraulic piston structure, the first hydraulic piston structure include the first telescopic piston rod and first piston,
The top setting casing pressurization interface of the analog casing, the first piston can be along the inner wall sealings of described sleeve pipe pressurization interface
It moves back and forth；The second hydraulic piston structure includes the second telescopic piston rod and second piston, the top of the cement sheath annular space
Cement sheath pressurization interface is arranged in portion, and the second piston can be sealed along the inner wall of cement sheath pressurization interface and be moved back and forth；Institute
Stating third hydraulic piston structure includes third telescopic piston rod and third piston, and the top setting confining pressure chamber of the confining pressure chamber pressurizes
Interface, the third piston can be sealed along the inner wall of confining pressure chamber pressurization interface and be moved back and forth.
In a preferred embodiment of the present invention, the first hydraulic piston structure is controlled equipped with the first hydraulic piston
Device, the second hydraulic piston structure are equipped with the second hydraulic piston controller, and the third hydraulic piston structure is equipped with the
Three hydraulic piston controllers, the first hydraulic piston controller, the second hydraulic piston controller and the third are hydraulic
Piston controller is electrically connected with the control unit.
In a preferred embodiment of the present invention, the anti-experimental provision for altering ability of test well cementation cement plane further includes
Fluid-filling structure and drainage structure, the fluid-filling structure include conductive fluid injecting structure, cement injecting structure and confining pressure liquid injection knot
Structure, the confining pressure liquid injecting structure are connected to the top of the confining pressure chamber, the cement injecting structure and the cement sheath annular space
Top connection, the conductive fluid injecting structure is connected to the inner cavity top of the analog casing；The drainage structure includes leading
Hydrothermal solution derived type structure and confining pressure liquid derived type structure, the confining pressure liquid derived type structure is connected to the lower part of the confining pressure chamber, described to lead
Hydrothermal solution derived type structure is connected to the inner cavity lower part of the analog casing.
In a preferred embodiment of the present invention, the shale exploitation simulation part includes cylinder structure, the oil cylinder knot
Structure includes cylinder shell, and coaxial and spaced radial is arranged first sleeve structure and the second cannula structure inside the cylinder shell,
Second cannula structure constitutes the simulated formation, constitutes between the cylinder shell and second cannula structure closed
The confining pressure chamber；
The cement sheath annular space is constituted between the first sleeve structure and second cannula structure；
The first sleeve structure constitutes the analog casing, and the top of the first sleeve structure is tightly connected described the
One hydraulic piston structure, the interior setting heating device of the first sleeve structure, the inner cavity top of the first sleeve structure
It being connected to the conductive fluid injecting structure, the inner cavity lower part of the first sleeve structure is connected to the conductive fluid derived type structure,
The cementing quality detector is arranged in the middle part of the first sleeve structure.
In a preferred embodiment of the present invention, it is located in the first sleeve structure above the heating device and sets
First pressure sensor and the first temperature sensor are set, second pressure sensor and second is arranged in the top of the cement sheath annular space
Third pressure sensor, the first pressure sensor, first temperature is arranged in the top of temperature sensor, the confining pressure chamber
Sensor, the second pressure sensor, the second temperature sensor and the third pressure sensor with the control
Portion's electrical connection.
In a preferred embodiment of the present invention, the conductive fluid injecting structure includes thermally conductive liquid storage tank, described thermally conductive
The first reservoir control valve, the outlet and the inner cavity of the analog casing of first reservoir control valve is arranged in the exit of liquid storage tank
Top sealing connection setting；The conductive fluid derived type structure includes conductive fluid suction pump, the exit of the conductive fluid suction pump
Setting the first suction pump control valve, the outlet of the first suction pump control valve and the inner cavity lower seal of the analog casing connect
Logical setting；
The cement injecting structure includes cement storage tank, and the second reservoir control valve is arranged in the exit of the cement storage tank,
The outlet of second reservoir control valve is connected to setting with cement sheath annular space sealing；
The confining pressure liquid injecting structure includes confining pressure liquid storage tank, and the control of third storage tank is arranged in the exit of the confining pressure liquid storage tank
The outlet of valve processed, the third reservoir control valve is connected to setting with the sealing of the top of the confining pressure chamber；The confining pressure liquid export knot
Structure includes confining pressure liquid suction pump, and the exit setting third of the confining pressure liquid suction pump aspirates pump control valve, the third suction
The outlet of pump control valve is connected to setting with the lower seal of the confining pressure chamber；
First reservoir control valve, second reservoir control valve, the third reservoir control valve, the conductive fluid are taken out
Sucking pump, it is described first suction pump control valve, the confining pressure liquid suction pump and the third suction pump control valve with the control
Portion's electrical connection.
In a preferred embodiment of the present invention, the heating device include with the analog casing coaxial arrangement plus
Hot pin, the heating rod are electrically connected with the control unit；
The gas injection device includes air accumulator, the exit connection setting gas compressor of the air accumulator, the gas
The 4th pressure sensor, the bottom of the outlet of the 4th pressure sensor and the simulation cement sheath is arranged in the exit of compressor
Portion's sealing connection.
The purpose of the present invention can also be achieved, and a kind of anti-experimental method for altering ability of test well cementation cement plane is completed
The assembling of the anti-experimental provision for altering ability of test well cementation cement plane above-mentioned, cement slurry, control unit are injected into cement sheath annular space
Pressurizing device and heating device simulation stratum condition are controlled, cementing concrete feedingization constitutes simulation cement sheath, simulated formation, simulation water
Mud ring and analog casing are cemented to an entirety；Control unit controls the pressure in pressurizing device periodically adjustment shale exploitation simulation part
Power, control unit controls the temperature in heating device periodically adjustment shale exploitation simulation part, until temperature, pressure cycle-index reaches
Targeted number；The complete implementations of cementing quality detector test well cementation cement plane, gas detecting instrument detect gas injection device to admittedly
The gas pressure of Jing Jiaojiemianchu pumping, control unit record the microannulus data and gas injection device of cementing quality detector test
Pressure data.
In a preferred embodiment of the present invention, the anti-experimental method for altering ability of test well cementation cement plane above-mentioned, packet
Include following steps,
Step a, the anti-experimental provision assembling for altering ability of test well cementation cement plane is completed；
Step b, the filling heat-conductive liquid into analog casing is injected to the intracavitary injection confining pressure liquid of confining pressure into cement sheath annular space
Cement slurry, control unit control heating devices heat conductive fluid, until being warming up to experimental design temperature, control unit controls pressurizing device
Specified pressure is forced into cement sheath annular space and confining pressure chamber, cementing concrete feedingization constitutes simulation cement sheath；Setting maintenance test mould
The time of quasi- cement sheath and analog casing cementing strength, until simulated formation, simulation cement sheath and analog casing are cemented to one
It is whole；
Step c, closing heating device declines the temperature of conductive fluid, meanwhile, control unit controls pressurizing device and improves simulation
Pressure in casing reaches specified pressure, and the temperature of heating device, analog casing and cement sheath annular space gradually decreases down room temperature, note
Temperature, pressure cycle-index is 1 at this time for record；
Unlatching heating device makes the temperature of conductive fluid rise to temperature value and reaches assigned temperature, meanwhile, control unit control adds
The pressure that pressure device reduces in analog casing reaches specified pressure, and temperature, pressure cycle-index is 2 to record at this time；
It repeats pressure and temperature above-mentioned and adjusts process, the pressure and temperature in shale exploitation simulation part is periodically adjusted
It is whole, until temperature, pressure cycle-index reaches targeted number；
Step d, in temperature, pressure cyclic process, the microannulus of cementing quality detector test well cementation cement plane；Open note
Device of air slowly pumps argon gas to cement sheath annular space, and control unit records pressure data；Gas detecting instrument stops after detecting argon gas
It supplies gas, the air pressure of argon gas at this time is that well cementation the anti-of cement plane alters pressure；
Step e, control unit control analog casing and confining pressure cavity pressure are reduced to 0, close heating device, shale exploitation simulation
When temperature is room temperature in portion, conductive fluid and the intracavitary confining pressure liquid of confining pressure in control unit control discharge analog casing complete experiment.
From the above mentioned, the anti-experimental provision for altering ability of test well cementation cement plane provided by the invention and its experimental method have
Following beneficial effect：
The anti-experimental provision and its experimental method for altering ability of test well cementation cement plane of the invention, by pressurizing device and adds
Thermal realizes the pressure and temperature cyclically-varying in shale exploitation simulation part, simulated ground stress, nearly near wellbore shale gas
The cyclically-varying of fracturing process middle sleeve internal pressure cyclical upturn and downturn and nearly near wellbore temperature, cementing quality detector test are solid
The complete implementations of well cement plane, the gas pressure overflowed at the top of the analog casing outer wall that gas detecting instrument detects are cemented the well glue
The anti-of junction alters pressure, the experimental provision and experimental method analog study different temperatures pressures cycle times condition truly and effectively
The anti-ability of altering of lower well cementation cement plane and the bonding quality for cement plane of cementing the well；Test well cementation cement plane of the invention is anti-to alter ability
In experimental provision, analog casing can use the casing of different outer wall smoothness and different size, different types of by replacing
Casing can test different casings to the anti-influence for altering ability of well cementation cement plane；Test well cementation cement plane of the invention is anti-to alter ability
Experimental provision structure it is simple, easy to operate, cost is relatively low, be suitable for promote the use of.
Detailed description of the invention
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein：
Fig. 1：For the schematic diagram of the anti-experimental provision for altering ability of test well cementation cement plane of the invention.
In figure：
100, the anti-experimental provision for altering ability of test well cementation cement plane；
101, external rigidity frame；102, fixing seat；
1, shale exploits simulation part；
10, cylinder shell；
11, analog casing；
111, casing pressurization interface；
112, conductive fluid injecting structure；1121, thermally conductive liquid storage tank；1122, the first reservoir control valve；
113, conductive fluid derived type structure；1131, conductive fluid suction pump；1132, the first suction pump control valve；
114, multi-stage reducing casing joint；
12, cement sheath annular space；
120, cement sheath is simulated；
121, cement sheath pressurization interface；
122, cement injecting structure；1221, cement storage tank；1222, the second reservoir control valve；
13, simulated formation；
14, confining pressure chamber；
141, confining pressure chamber pressurization interface；
142, confining pressure liquid injecting structure；1421, confining pressure liquid storage tank；1422, third reservoir control valve；
143, confining pressure liquid derived type structure；1431, confining pressure liquid suction pump；1432, third aspirates pump control valve；
15, cylinder support；
2, pressurizing device；
21, the first hydraulic piston structure；211, the first telescopic piston rod；212, first piston；213, the first hydraulic piston
Controller；
22, the second hydraulic piston structure；221, the second telescopic piston rod；222, second piston；223, the second hydraulic piston
Controller；
23, third hydraulic piston structure；231, third telescopic piston rod；232, third piston；233, third hydraulic piston
Controller；
3, heating device；
4, cementing quality detector；
5, gas injection device；
51, air accumulator；52, gas compressor；
6, gas detecting instrument；
7, control unit；
81, first pressure sensor；82, second pressure sensor；83, third pressure sensor；84, the 4th pressure sensing
Device；
91, the first temperature sensor；92, second temperature sensor.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment.
As shown in Figure 1, the present invention provides a kind of anti-experimental provision 100 for altering ability of test well cementation cement plane, including shale
Simulation part 1 is exploited, shale exploitation simulation part 1 includes simulated formation 13, the cement sheath annular space 12 being sequentially coaxially arranged from the outside to the core
With analog casing 11, confining pressure chamber 14 is arranged in the outside of simulated formation 13, can the composition simulation of feedingization cement slurry in cement sheath annular space 12
Cement sheath 120 simulates the contact surface between cement sheath 120 and analog casing 11 and constitutes well cementation cement plane；Shale exploits simulation part 1
Top and bottom be in sealed set；Analog casing 11 can use the casing of different outer wall smoothness, including smooth surface casing, spiral shell
Line shape casing, concavo-convex casing and frosted shape casing can test different casings to well cementation by replacing different types of casing
The anti-influence for altering ability of cement plane；
The pressurizing device for adjusting shale exploitation 1 internal pressure of simulation part is sealedly connected on shale exploitation simulation part 1
2；The heating dress for adjusting shale exploitation 1 internal temperature of simulation part (heating simulation cement sheath 120) is equipped in analog casing 11
Set 3；The cementing quality detector 4 for detecting well cementation cement plane is equipped in the middle part of the outer wall of analog casing 11, in present embodiment
In, cementing quality detector 4 is ultrasonic cementing quality detector, is determined by the microannulus generated at detection well cementation cement plane solid
Well quality；The position seals for being located at well cementation cement plane lower part in simulation cement sheath 120 are communicated with gas injection device 5, cement sheath annular space
Gas detecting instrument 6, the outer wall abutting contact of gas detecting instrument 6 and analog casing 11 is arranged in 12 top；
The anti-experimental provision for altering ability of test well cementation cement plane further includes control unit 7, control unit 7 and pressurizing device 2, heating
Device 3, cementing quality detector 4, gas detecting instrument 6 and gas injection device 5 are electrically connected.In the present embodiment, control unit 7 is meter
Calculation machine, control unit 7 can receive data, record data, and control the work shape of pressurizing device 2, heating device 3 and gas injection device 5
State.
The anti-experimental provision 100 for altering ability of test well cementation cement plane of the invention, it is real by pressurizing device and heating device
Pressure and temperature cyclically-varying in existing shale exploitation simulation part, simulated ground stress, nearly near wellbore shale gas fracturing process
The cyclically-varying of the cyclical upturn and downturn of middle sleeve internal pressure and nearly near wellbore temperature, cementing quality detector test well cementation cement plane
Complete implementations, the gas pressure overflowed at the top of the analog casing outer wall that gas detecting instrument detects cements the well the resisting of cement plane
Pressure is altered, the experimental provision truly and effectively alter under analog study different temperatures pressures cycle times condition by well cementation the anti-of cement plane
The bonding quality of ability and cement plane of cementing the well；In the anti-experimental provision 100 for altering ability of test well cementation cement plane of the invention, simulation
Casing can use the casing of different outer wall smoothness, can test different casings to well cementation by replacing different types of casing
The anti-influence for altering ability of cement plane；Anti- 100 structure of experimental provision for altering ability of test well cementation cement plane of the invention is simple, operation
Convenient, cost is relatively low, is suitable for promoting the use of.
Further, as shown in Figure 1, pressurizing device 2 includes the first hydraulic piston structure 21,22 and of the second hydraulic piston structure
Third hydraulic piston structure 23, the first hydraulic piston structure 21 include the first telescopic piston rod 211 and first piston 212, simulation
The top setting casing pressurization interface 111 of casing 11, first piston 212 can seal reciprocal along the inner wall of casing pressurization interface 111
It is mobile, pressure rise when first piston 212 moves down in analog casing 11, when first piston 212 moves up in analog casing 11
Pressure reduction, in the present embodiment, casing pressurization interface 111 are sealedly attached to simulation by multi-stage reducing casing joint 114
The top of casing 11；Multi-stage reducing casing joint 114 can install various sizes of analog casing and be tested, of the invention
In one specific embodiment, 114 energy connecting external diameter of multi-stage reducing casing joint is the simulation of 177.8mm, 244.48mm, 273.05mm
Casing；
Second hydraulic piston structure 22 includes the second telescopic piston rod 221 and second piston 222, the top of cement sheath annular space 12
Cement sheath pressurization interface 121 is arranged in portion, and second piston 222 can be sealed along the inner wall of cement sheath pressurization interface 121 and be moved back and forth, the
Pressure rise in cement sheath annular space 12 when two pistons 222 move down, pressure drop in cement sheath annular space 12 when second piston 222 moves up
It is low；The effect of second hydraulic piston structure 22 is to simulate the pressure for the fluid column that cement slurry hardens into during Behavior of Hardened Cement Paste；
Third hydraulic piston structure 23 includes third telescopic piston rod 231 and third piston 232, and the top of confining pressure chamber 14 is set
Confining pressure chamber pressurization interface 141 is set, third piston 232 can be sealed along the inner wall of confining pressure chamber pressurization interface 141 and be moved back and forth, and third is living
Pressure rise when plug 232 moves down in confining pressure chamber 14, pressure reduction when third piston 232 moves up in confining pressure chamber 14.
As shown in Figure 1, in the present embodiment, the first hydraulic piston structure 21 is equipped with the first hydraulic piston controller
213, the second hydraulic piston structure 22 is equipped with the second hydraulic piston controller 223, and third hydraulic piston structure 23 is equipped with the
Three hydraulic piston controllers 233, the first hydraulic piston controller 213, the second hydraulic piston controller 223 and third hydraulic piston
Controller 233 is electrically connected with control unit 7.Control unit 7 is controlled by the first hydraulic piston controller 213, the second hydraulic piston
Device 223 and third hydraulic piston controller 233 control the first telescopic piston rod 211, the second telescopic piston rod 221 and third respectively
Telescopic piston rod 231 it is flexible so that first piston 212, second piston 222 and third piston 232 according to requirement of experiment above and below
It is mobile.
Further, as shown in Figure 1, the anti-experimental provision 100 for altering ability of test well cementation cement plane further include fluid-filling structure and
Drainage structure, fluid-filling structure include conductive fluid injecting structure 112, cement injecting structure 122 and confining pressure liquid injecting structure 142, are enclosed
Hydraulic fluid injecting structure 142 is connected to the top of confining pressure chamber 14 by pipeline, and cement injecting structure 122 is upper with cement sheath annular space 12
Portion is connected to by pipeline, and the cement slurry that cement injecting structure 122 can inject certain volume into cement sheath annular space 12 constitutes aforementioned
Simulation cement sheath 120, mortar architecture can be configured according to the system of live cement slurry.Conductive fluid injecting structure 112
It is connected to the inner cavity top of analog casing 11 by pipeline；Drainage structure includes conductive fluid derived type structure 113 and the export of confining pressure liquid
Structure 143, confining pressure liquid derived type structure 143 are connected to the lower part of confining pressure chamber 14, conductive fluid derived type structure 113 and analog casing 11
The connection of inner cavity lower part.
When experiment, the filling heat-conductive liquid into analog casing of conductive fluid injecting structure 112, confining pressure liquid injecting structure 142 is to enclosing
Chamber 14 is pressed to inject confining pressure liquid (hydraulic oil), conductive fluid can be by the heat transfer of heating device to analog casing 11, so that nearly pit shaft
The temperature at place reaches requirement of experiment, meanwhile, the thermally conductive hydraulic coupling under the effect of the first hydraulic piston structure 21, in analog casing 11
Corresponding change realizes the pressure change at nearly pit shaft；Confining pressure liquid is filled in confining pressure chamber 14, is made in third hydraulic piston structure 23
Under, pressure corresponding change in confining pressure chamber 14 realizes the pressure change on stratum；After experiment, conductive fluid derived type structure 113
Conductive fluid is exported into analog casing 11, confining pressure liquid is exported confining pressure chamber 14 by confining pressure liquid derived type structure 143.
Further, as shown in Figure 1, shale exploitation simulation part 1 includes cylinder structure, cylinder structure includes cylinder shell 10,
Coaxial and spaced radial is arranged first sleeve structure and the second cannula structure inside cylinder shell, and the second cannula structure constitutes simulation
Stratum 13 constitutes closed confining pressure chamber 14 between cylinder shell 10 and the second cannula structure；First sleeve structure and the second casing
Cement sheath annular space above-mentioned is constituted between structure；First sleeve structure constitutes analog casing 11, and the top of first sleeve structure is close
Envelope the first hydraulic piston structure 21 of connection, is arranged heating device 3 in first sleeve structure, the inner cavity top of first sleeve structure with
Conductive fluid injecting structure 112 is connected to, and the inner cavity lower part of first sleeve structure is connected to conductive fluid derived type structure 113, first sleeve
Cementing quality detector 4 is arranged in the middle part of structure.In the present embodiment, the oil cylinder that the bottom of first sleeve structure passes through ground connection
Support 15 is sealed, and multiple concentric threads portions, the size in each concentric threads portion and multistage change is arranged in the top of cylinder support 15
Diameter casing joint 114 is correspondingly arranged, and cylinder support 15 matches use with multi-stage reducing casing joint 114, to install different rule
The first sleeve structure of lattice size.
Further, as shown in Figure 1, first pressure sensor is arranged positioned at the top of heating device 3 in first sleeve structure
81 and first temperature sensor 91, the top setting second pressure sensor 82 and second temperature sensor 92 of cement sheath annular space,
Third pressure sensor 83 is arranged in the top of confining pressure chamber 14.First pressure sensor 81, the first temperature sensor 91, second pressure
Sensor 82, second temperature sensor 92 and third pressure sensor 83 are electrically connected with control unit 7.First pressure sensor 81
With the pressure and temperature in the first temperature sensor 91 real time monitoring analog casing 11, and by the pressure and temperature in analog casing 11
Degree value feeds back to control unit 7, and control unit 7 records the numerical value；Second pressure sensor 82 and second temperature sensor
The pressure and temperature of 92 real time monitoring cement sheath annular spaces 12, and the pressure and temperature numeric feedback of cement sheath annular space 12 is extremely controlled
Portion 7, control unit 7 record the numerical value；Third pressure sensor 83 monitors the pressure of confining pressure chamber 14 in real time, and by confining pressure chamber
14 pressure value feeds back to control unit 7, and control unit 7 records the numerical value.
Further, as shown in Figure 1, conductive fluid injecting structure 112 includes thermally conductive liquid storage tank 1121, thermally conductive liquid storage tank 1121
The first reservoir control valve 1122 is arranged in exit, and the outlet of the first reservoir control valve 1122 and the inner cavity top of analog casing 11 are close
Envelope connection setting；Conductive fluid derived type structure 113 includes conductive fluid suction pump 1131, and the exit of conductive fluid suction pump 1131 is arranged
The outlet of first suction pump control valve 1132, the first suction pump control valve 1132 is connected to the inner cavity lower seal of analog casing 11
Setting；
Cement injecting structure 122 includes cement storage tank 1221, and the exit of cement storage tank 1221 is arranged the second storage tank and controls
The outlet of valve 1222, the second reservoir control valve 1222 is connected to setting with the sealing of cement sheath annular space；
Confining pressure liquid injecting structure 142 includes confining pressure liquid storage tank 1421, and the exit setting third of confining pressure liquid storage tank 1421 is stored up
The outlet of tank control valve 1422, third reservoir control valve 1422 is connected to setting with the sealing of the top of confining pressure chamber 14；The export of confining pressure liquid
Structure 143 includes confining pressure liquid suction pump 1431, and the exit setting third of confining pressure liquid suction pump 1431 aspirates pump control valve 1432,
The outlet of third suction pump control valve 1432 is connected to setting with the lower seal of confining pressure chamber 14.First reservoir control valve 1122,
Two reservoir control valves 1222, third reservoir control valve 1422, conductive fluid suction pump 1131, first are aspirated pump control valve 1132, are enclosed
Hydraulic fluid suction pump 1431 and third suction pump control valve 1432 are electrically connected with control unit 7.Control unit 7 controls thermally conductive liquid storage tank
1121, cement storage tank 1221, confining pressure liquid storage tank 1421, conductive fluid suction pump 1131 and confining pressure liquid suction pump 1431 opening and closing.
Further, as shown in Figure 1, test well cementation cement plane anti-to alter the experimental provision 100 of ability further include being fixedly installed on
External rigidity frame 101 in fixing seat, external rigidity frame 101 are located at the top of shale exploitation simulation part 1, and first is flexible
The top of piston rod 211, the second telescopic piston rod 221 and third telescopic piston rod 231 is fixedly connected on external rigidity frame 101
On.In the present embodiment, the both ends of external rigidity frame 101 pass through fixing seat 102 respectively and are fixed on ground.
Further, heating device 3 includes the heating rod being coaxially disposed with analog casing 11, and heating rod is electrically connected with control unit 7
It connects.
Further, as shown in Figure 1, gas injection device 5 includes air accumulator 51, the exit connection setting gas pressure of air accumulator 51
The 4th pressure sensor 84, the outlet and simulation of the 4th pressure sensor 84 is arranged in the exit of contracting machine 52, gas compressor 52
The sealed bottom of cement sheath 120 is connected to.In the present embodiment, argon gas is stored in air accumulator 51, gas compressor 52 is according to reality
The bottom for requiring to inject argon gas into simulation cement sheath 120 is tested at well cementation cement plane, argon gas passes through micro- at well cementation cement plane
Annular space flows up spilling, and when gas detecting instrument 6 detects argon gas, the pressure for the argon gas that the 4th pressure sensor 84 detects is i.e.
Pressure (index parameter of the waterpower cementing strength of evaluating cementing cement plane) is altered for well cementation the anti-of cement plane, it is anti-to alter pressure divided by mould
The height of quasi- cement sheath 120 is to resist to alter barometric gradient.
The present invention also provides a kind of anti-experimental methods for altering ability of test well cementation cement plane, complete test well cementation glue above-mentioned
The assembling of the anti-experimental provision for altering ability of junction, cement slurry is injected into cement sheath annular space, and control unit controls pressurizing device and adds
Thermal simulation stratum condition, cementing concrete feedingization constitute simulation cement sheath, simulated formation, simulation cement sheath and analog casing glue
Form an entirety；Pressure in control unit control pressurizing device periodically adjustment shale exploitation simulation part, control unit control add
Temperature in thermal periodically adjustment shale exploitation simulation part, until temperature, pressure cycle-index reaches targeted number；Well cementation matter
The complete implementations of detector test well cementation cement plane are measured, gas detecting instrument detects gas injection device to pumping at well cementation cement plane
Gas pressure, control unit record the microannulus data of cementing quality detector test and the pressure data of gas injection device.
The anti-experimental method for altering ability of test well cementation cement plane specifically includes following steps：
Step a, it according to structure chart shown in Fig. 1, completes the anti-experimental provision 100 for altering ability of test well cementation cement plane and assembles.
Step b, control unit 7 (computer) controls inner cavity filling heat-conductive of the thermally conductive liquid storage tank 1121 to first sleeve structure
Liquid, control unit 7 (computer) control confining pressure liquid storage tank 1421 inject confining pressure liquid, control unit 7 (computer) control into confining pressure chamber 14
Cement storage tank 1221 processed injects cement slurry into cement sheath annular space 12, mortar architecture can according to the system of live cement slurry into
Row configuration；Control unit 7 (computer) controls heating rod and heats conductive fluid, until being warming up to experimental design temperature (of the invention
In one specific embodiment, the temperature of heating rod can be set to 100 DEG C of temperature with simulated formation), the control of control unit 7 second is living
222,232 downlink of third piston are filled in, water is monitored by the second hydraulic piston controller 223 and third hydraulic piston controller 233
The pressure arrival specified pressure of mud ring annular space 12, confining pressure chamber 14, in a specific embodiment of the invention, setting third piston
232 move down the pressure arrival 50MPa made in confining pressure chamber 14, simulation stratum condition, and cementing concrete feedingization constitutes simulation cement sheath
120；The time of setting maintenance test simulation cement sheath and analog casing cementing strength, until simulated formation 13, simulation cement sheath
120 and analog casing 11 be cemented to an entirety.
Step c, closing heating rod declines the temperature of conductive fluid, meanwhile, the control first piston 212 of control unit 7, which moves down, to be mentioned
Pressure in high analog casing 11,11 internal pressure of analog casing enhance the extruding of cement sheath after increasing, analog casing 11 and cement
Pressure increase between ring, until the pressure value that the first hydraulic piston controller 213 monitors stops moving down after reaching specified pressure
(first piston 212 is kept to stablize), in a specific embodiment of the invention, setting first piston 212, which moves down, makes analog casing
Pressure in 11 rises to 60MPa, and the temperature of heating rod, analog casing 11 and cement sheath annular space 12 gradually decreases down room temperature, record
Temperature, pressure cycle-index is 1 at this time.
Above-mentioned temperature and pressure regulation process, simulate fracturing process middle sleeve and cement sheath pressure rise, at a temperature of
The phenomenon that drop.
Opening heating rod rises the temperature of conductive fluid, until the temperature value that the first temperature sensor 91 monitors reaches specified
Temperature, meanwhile, control unit 7 controls first piston 212 and slowly moves up the pressure reduced in analog casing 11,11 internal pressure of analog casing
The extruding of cement sheath is weakened after reduction, the pressure between analog casing 11 and cement sheath reduces, until the first hydraulic piston controls
The pressure value that device 213 monitors stops moving up and (first piston 212 being kept to stablize) after reaching specified pressure, in a tool of the invention
In body embodiment, setting first piston 212, which moves up, makes the pressure in analog casing 11 be down to 20MPa, records temperature, pressure at this time
Cycle-index is 2.
Above-mentioned temperature and pressure regulation process, simulates pressure drop in fracturing fluid recovery (backflow) process middle sleeve and cement sheath
The phenomenon that low, temperature increases.
Pressure and temperature adjustment process above-mentioned (periodically simulate pressure break and return and be drained through journey) is repeated, realizes pressurizing device pair
Shale exploits the adjustment of the pressure cycle in simulation part, and heating device is to the Temperature cycling tune in shale exploitation simulation part
It is whole, until temperature, pressure cycle-index reaches targeted number.
Step d, in temperature, pressure cyclic process, the microannulus of cementing quality detector test well cementation cement plane is realized solid
The monitoring of the complete implementations of well cement plane；The slow high pressure argon gas pumped in air accumulator 51 of gas compressor 52 is opened to cement sheath
Annular space 12, the 4th pressure sensor 84 monitor the air pressure in 52 exit of gas compressor, and will be from the more of gas compressor 52
Group pressure data is transferred to control unit 7；Gas detecting instrument 6 stops supplying gas after detecting argon gas, and gas compressor 52 exports at this time
The air pressure at place is that the anti-of cement plane of cementing the well alters pressure, and anti-to alter pressure divided by the height of cement sheath be anti-to alter barometric gradient.
Step e, pressure is reduced to atmospheric pressure (first piston 212 and the in control unit control analog casing 11 and confining pressure chamber 14
Three pistons 232 move up), heating rod is closed, when temperature is room temperature in the shale exploitation simulation part 1 that each temperature sensor monitors,
Conductive fluid suction pump 1131 and confining pressure liquid suction pump 1431 are opened in the control of control unit 7, be discharged the conductive fluid in analog casing 11 and
Confining pressure liquid in confining pressure chamber 14 completes experiment.
After the completion of experiment, control unit 7 (computer) exports experimental data report, and in experimental data report, including shale is opened
Adopt pressure data in simulation part 1, temperature data, well cementation cement plane microannulus and gas compressor 52 in shale exploitation simulation part 1
Export air pressure.
In a specific embodiment of the invention, the major technique in the anti-experimental method for altering ability of test well cementation cement plane
Index is as follows：
(1) experimental temperature：- 120 DEG C of room temperature；
(2) casing internal pressure：0-60Mpa；
(3) stratum confining pressure：0-60Mpa；
(4) casing size：Outer diameter 177.8mm, 244.48mm, 273.05mm；Height 200mm；
(5) simulated formation size：Internal diameter 355mm, outer diameter 435mm, length 200mm；
(6) gas compressor pressure range：0-20Mpa；
(7) each sensor：The monitoring range of pressure sensor is 0-70MPa, and the monitoring range of temperature sensor is room temperature-
150℃；Sensor sensitivity is 0.27%FS.
From the above mentioned, the anti-experimental provision for altering ability of test well cementation cement plane provided by the invention and its experimental method have
Following beneficial effect：
The anti-experimental provision and its experimental method for altering ability of test well cementation cement plane of the invention, by pressurizing device and adds
Thermal realizes the pressure and temperature cyclically-varying in shale exploitation simulation part, simulated ground stress, nearly near wellbore shale gas
The cyclically-varying of fracturing process middle sleeve internal pressure cyclical upturn and downturn and nearly near wellbore temperature, cementing quality detector test are solid
The complete implementations of well cement plane, the gas pressure overflowed at the top of the analog casing outer wall that gas detecting instrument detects are cemented the well glue
The anti-of junction alters pressure, the experimental provision and experimental method analog study different temperatures pressures cycle times condition truly and effectively
The anti-ability of altering of lower well cementation cement plane and the bonding quality for cement plane of cementing the well；Test well cementation cement plane of the invention is anti-to alter ability
In experimental provision, analog casing can use the casing of different outer wall smoothness and different size, different types of by replacing
Casing can test different casings to the anti-influence for altering ability of well cementation cement plane；Test well cementation cement plane of the invention is anti-to alter ability
Experimental provision structure it is simple, easy to operate, cost is relatively low, be suitable for promote the use of.
The foregoing is merely the schematical specific embodiment of the present invention, the range being not intended to limit the invention.It is any
Those skilled in the art, made equivalent changes and modifications under the premise of not departing from design and the principle of the present invention,
It should belong to the scope of protection of the invention.
Claims (10)
1. a kind of anti-experimental provision for altering ability of test well cementation cement plane, which is characterized in that including being opened in the shale of sealed set
Simulation part is adopted, the shale exploitation simulation part includes the simulated formation being sequentially coaxially arranged from the outside to the core, cement sheath annular space and mould
Confining pressure chamber is arranged in quasi- casing, the outside of the simulated formation, can feedingization cement slurry composition simulation cement in the cement sheath annular space
Ring, the contact surface between the simulation cement sheath and the analog casing constitute well cementation cement plane；The shale exploits simulation part
On be sealedly connected with pressurizing device for adjusting shale exploitation simulation part internal pressure；It is equipped with and uses in the analog casing
In the heating device for adjusting the shale exploitation simulation part internal temperature；Cementing quality is equipped in the middle part of the outer wall of the analog casing
Detector；The position seals for being located at well cementation cement plane lower part in the simulation cement sheath are communicated with gas injection device, the cement sheath
Gas detecting instrument, the outer wall abutting contact of the gas detecting instrument and the analog casing is arranged in the top of annular space；The test
Well cementation cement plane is anti-, and to alter the experimental provision of ability further include control unit, the control unit and the pressurizing device, heating dress
It sets, the electrical connection of the cementing quality detector, the gas detecting instrument and the gas injection device.
2. the anti-experimental provision for altering ability of test well cementation cement plane as described in claim 1, which is characterized in that the pressurization dress
It sets including the first hydraulic piston structure, the second hydraulic piston structure and third hydraulic piston structure, the first hydraulic piston knot
Structure includes the first telescopic piston rod and first piston, and the top setting casing pressurization interface of the analog casing, described first is living
Plug can be sealed along the inner wall of described sleeve pipe pressurization interface and be moved back and forth；The second hydraulic piston structure includes the second telescopic piston
Bar and second piston, the top setting cement sheath pressurization interface of the cement sheath annular space, the second piston can be along the cement
The inner wall of ring pressurization interface, which seals, to be moved back and forth；The third hydraulic piston structure includes that third telescopic piston rod and third are living
Plug, the top setting confining pressure chamber pressurization interface of the confining pressure chamber, the third piston can pressurize along interface along the confining pressure chamber
Wall sealing moves back and forth.
3. the anti-experimental provision for altering ability of test well cementation cement plane as claimed in claim 2, which is characterized in that first liquid
Piston structure is pressed to be equipped with the first hydraulic piston controller, the second hydraulic piston structure is controlled equipped with the second hydraulic piston
Device, the third hydraulic piston structure are equipped with third hydraulic piston controller, the first hydraulic piston controller, described the
Two hydraulic piston controllers and the third hydraulic piston controller are electrically connected with the control unit.
4. the anti-experimental provision for altering ability of test well cementation cement plane as claimed in claim 2, which is characterized in that the test is solid
The anti-experimental provision for altering ability of well cement plane further includes fluid-filling structure and drainage structure, and the fluid-filling structure includes conductive fluid injection
Structure, cement injecting structure and confining pressure liquid injecting structure, the confining pressure liquid injecting structure are connected to the top of the confining pressure chamber, institute
It states cement injecting structure to be connected to the top of the cement sheath annular space, the conductive fluid injecting structure is interior with the analog casing
Top of chamber connection；The drainage structure includes conductive fluid derived type structure and confining pressure liquid derived type structure, the confining pressure liquid derived type structure
It is connected to the lower part of the confining pressure chamber, the conductive fluid derived type structure is connected to the inner cavity lower part of the analog casing.
5. the anti-experimental provision for altering ability of test well cementation cement plane as claimed in claim 4, which is characterized in that the shale is opened
Adopting simulation part includes cylinder structure, and the cylinder structure includes cylinder shell, coaxial and spaced radial inside the cylinder shell
It is arranged first sleeve structure and the second cannula structure, second cannula structure constitutes the simulated formation, the cylinder shell
The closed confining pressure chamber is constituted between second cannula structure；
The cement sheath annular space is constituted between the first sleeve structure and second cannula structure；
The first sleeve structure constitutes the analog casing, and the top of the first sleeve structure is tightly connected first liquid
Piston structure is pressed, the setting heating device, the inner cavity top of the first sleeve structure and institute in the first sleeve structure
The connection of conductive fluid injecting structure is stated, the inner cavity lower part of the first sleeve structure is connected to the conductive fluid derived type structure, described
The cementing quality detector is arranged in the middle part of first sleeve structure.
6. the anti-experimental provision for altering ability of test well cementation cement plane as claimed in claim 5, which is characterized in that the first set
Positioned at the top of heating device setting first pressure sensor and the first temperature sensor, the cement sheath ring in pipe structure
Third pressure sensing is arranged in the top of empty top setting second pressure sensor and second temperature sensor, the confining pressure chamber
Device, the first pressure sensor, first temperature sensor, the second pressure sensor, second temperature sensing
Device and the third pressure sensor are electrically connected with the control unit.
7. the anti-experimental provision for altering ability of test well cementation cement plane as claimed in claim 5, which is characterized in that the conductive fluid
Injecting structure includes thermally conductive liquid storage tank, and the first reservoir control valve, first storage tank is arranged in the exit of the thermally conductive liquid storage tank
The outlet of control valve is connected to setting with the sealing of the inner cavity top of the analog casing；The conductive fluid derived type structure includes conductive fluid
Suction pump, exit setting the first suction pump control valve of the conductive fluid suction pump, the first suction pump control valve go out
Mouth is connected to setting with the inner cavity lower seal of the analog casing；
The cement injecting structure includes cement storage tank, and the second reservoir control valve is arranged in the exit of the cement storage tank, described
The outlet of second reservoir control valve is connected to setting with cement sheath annular space sealing；
The confining pressure liquid injecting structure includes confining pressure liquid storage tank, and the exit setting third storage tank of the confining pressure liquid storage tank controls
The outlet of valve, the third reservoir control valve is connected to setting with the sealing of the top of the confining pressure chamber；The confining pressure liquid derived type structure
Including confining pressure liquid suction pump, the exit setting third of the confining pressure liquid suction pump aspirates pump control valve, the third suction pump
The outlet of control valve is connected to setting with the lower seal of the confining pressure chamber；
First reservoir control valve, second reservoir control valve, the third reservoir control valve, conductive fluid suction
Pump, it is described first suction pump control valve, the confining pressure liquid suction pump and the third suction pump control valve with the control unit
Electrical connection.
8. the anti-experimental provision for altering ability of test well cementation cement plane as described in claim 1, which is characterized in that the heating dress
The heating rod including being coaxially disposed with the analog casing is set, the heating rod is electrically connected with the control unit；
The gas injection device includes air accumulator, the exit connection setting gas compressor of the air accumulator, the gas compression
The 4th pressure sensor is arranged in the exit of machine, and the outlet of the 4th pressure sensor and the bottom of the simulation cement sheath are close
Envelope connection.
9. a kind of anti-experimental method for altering ability of test well cementation cement plane, which is characterized in that complete as claim 1 to 8 is any
The assembling of the anti-experimental provision for altering ability of test well cementation cement plane described in, cement slurry is injected into cement sheath annular space, is controlled
Portion controls pressurizing device and heating device simulation stratum condition, and cementing concrete feedingization constitutes simulation cement sheath, simulated formation, simulation
Cement sheath and analog casing are cemented to an entirety；Control unit controls in pressurizing device periodically adjustment shale exploitation simulation part
Pressure, control unit controls the temperature in heating device periodically adjustment shale exploitation simulation part, until temperature, pressure cycle-index reaches
To targeted number；Cementing quality detector test cement the well cement plane complete implementations, gas detecting instrument detect gas injection device to
The gas pressure pumped at well cementation cement plane, control unit record the microannulus data and gas injection device of cementing quality detector test
Pressure data.
10. the anti-experimental method for altering ability of test well cementation cement plane as claimed in claim 9, which is characterized in that including following
Step,
Step a, the anti-experimental provision assembling for altering ability of test well cementation cement plane is completed；
Step b, the filling heat-conductive liquid into analog casing injects cement into cement sheath annular space to the intracavitary injection confining pressure liquid of confining pressure
Slurry, control unit control heating devices heat conductive fluid, until being warming up to experimental design temperature, control unit controls pressurizing device to water
Mud ring annular space and confining pressure chamber are forced into specified pressure, and cementing concrete feedingization constitutes simulation cement sheath；Setting maintenance test simulation water
The time of mud ring and analog casing cementing strength, until simulated formation, simulation cement sheath and analog casing are cemented to an entirety；
Step c, closing heating device declines the temperature of conductive fluid, meanwhile, control unit controls pressurizing device and improves analog casing
Interior pressure reaches specified pressure, and the temperature of heating device, analog casing and cement sheath annular space gradually decreases down room temperature, records this
When temperature, pressure cycle-index be 1；
Unlatching heating device makes the temperature of conductive fluid rise to temperature value and reaches assigned temperature, meanwhile, control unit control pressurization dress
The pressure that setting reduces in analog casing reaches specified pressure, and temperature, pressure cycle-index is 2 to record at this time；
It repeats pressure and temperature above-mentioned and adjusts process, the pressure and temperature in shale exploitation simulation part is periodically adjusted,
Until temperature, pressure cycle-index reaches targeted number；
Step d, in temperature, pressure cyclic process, the microannulus of cementing quality detector test well cementation cement plane；Open gas injection dress
It sets to cement sheath annular space and slowly pumps argon gas, control unit records pressure data；Gas detecting instrument stops supplying gas after detecting argon gas,
The air pressure of argon gas at this time is that well cementation the anti-of cement plane alters pressure；
Step e, control unit control analog casing and confining pressure cavity pressure are reduced to 0, close heating device, and shale is exploited in simulation part
When temperature is room temperature, conductive fluid and the intracavitary confining pressure liquid of confining pressure in control unit control discharge analog casing complete experiment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810607746.7A CN108868746A (en) | 2018-06-13 | 2018-06-13 | The anti-experimental provision and its experimental method for altering ability of test well cementation cement plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810607746.7A CN108868746A (en) | 2018-06-13 | 2018-06-13 | The anti-experimental provision and its experimental method for altering ability of test well cementation cement plane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108868746A true CN108868746A (en) | 2018-11-23 |
Family
ID=64338852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810607746.7A Pending CN108868746A (en) | 2018-06-13 | 2018-06-13 | The anti-experimental provision and its experimental method for altering ability of test well cementation cement plane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108868746A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681190A (en) * | 2019-03-07 | 2019-04-26 | 中国海洋石油集团有限公司 | Gas well at HTHP cement sheath sealing integrity evaluation system |
| CN110005400A (en) * | 2019-05-27 | 2019-07-12 | 青岛理工大学 | Hot dry rock stratum high-temperature hyperbaric environment wellbore casing-cement sheath cement plane test device |
| CN110578494A (en) * | 2019-09-06 | 2019-12-17 | 中国石油大学(北京) | Cement sheath initial stress state monitoring experiment device |
| CN111088977A (en) * | 2019-12-12 | 2020-05-01 | 中国石油天然气股份有限公司 | Experimental device and experimental method for well cementation annular pressurization |
| CN111305820A (en) * | 2020-03-11 | 2020-06-19 | 中海石油(中国)有限公司 | Ultrahigh-temperature high-pressure gas well interlayer pressure packing evaluation device |
| CN111504898A (en) * | 2020-01-10 | 2020-08-07 | 长江大学 | Experimental device and method for evaluating cement ring interface bonding strength under high-temperature and high-pressure conditions |
| CN111622743A (en) * | 2018-12-19 | 2020-09-04 | 中国地质大学（北京） | Tiltable and eccentric cementing second interface cementing quality evaluation method |
| CN111997589A (en) * | 2020-09-10 | 2020-11-27 | 西南石油大学 | Full-size cement sheath packing capacity and bonding strength testing device and testing method thereof |
| CN112065364A (en) * | 2019-06-10 | 2020-12-11 | 中国石油天然气股份有限公司 | Well cementation performance determining device |
| CN112523746A (en) * | 2019-09-17 | 2021-03-19 | 中国石油化工股份有限公司 | Cement sheath sealing test device for simulating real stratum interface conditions |
| CN112855119A (en) * | 2021-01-15 | 2021-05-28 | 中国石油大学(北京) | Experimental device and method for simulating well cementation fatigue limit |
| CN114109362A (en) * | 2020-09-01 | 2022-03-01 | 中国石油化工股份有限公司 | Device and method for evaluating performance of well cementation cement sheath with multiple cementing surfaces for oil and gas wells |
| CN114518294A (en) * | 2020-11-19 | 2022-05-20 | 中国石油化工股份有限公司 | Cement sheath sealing capability evaluation device |
| CN115653567A (en) * | 2022-08-16 | 2023-01-31 | 吉林大学 | Experimental device and method for evaluating well wall stability effect |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202560207U (en) * | 2012-05-17 | 2012-11-28 | 东北石油大学 | Experimental device for determining cementation degree of interface of well cementation cement sheath |
| CN102979505A (en) * | 2012-12-06 | 2013-03-20 | 中国海洋石油总公司 | Well cementation cement sheath performance simulation experiment device and experiment method |
| CN104405366A (en) * | 2014-10-22 | 2015-03-11 | 西南石油大学 | Device and method for testing mechanical integrity of high-temperature high-pressure well cementation cement sheath |
| CN104500034A (en) * | 2014-12-29 | 2015-04-08 | 西南石油大学 | Device and method for evaluating influence of pressure change on completeness of cement sheath |
| CN105403505A (en) * | 2015-11-24 | 2016-03-16 | 安东石油技术（集团）有限公司 | Cementing interface bonding strength testing device and method |
| CN106593414A (en) * | 2017-01-10 | 2017-04-26 | 中国石油大学(北京) | Experimental device and method for testing cementing strength of cement loop and sleeving pipes |
| CN106771096A (en) * | 2016-12-09 | 2017-05-31 | 西南石油大学 | A kind of cementing concrete ring seal is every ability dynamic checkout unit and experimental technique |
-
2018
- 2018-06-13 CN CN201810607746.7A patent/CN108868746A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202560207U (en) * | 2012-05-17 | 2012-11-28 | 东北石油大学 | Experimental device for determining cementation degree of interface of well cementation cement sheath |
| CN102979505A (en) * | 2012-12-06 | 2013-03-20 | 中国海洋石油总公司 | Well cementation cement sheath performance simulation experiment device and experiment method |
| CN104405366A (en) * | 2014-10-22 | 2015-03-11 | 西南石油大学 | Device and method for testing mechanical integrity of high-temperature high-pressure well cementation cement sheath |
| CN104500034A (en) * | 2014-12-29 | 2015-04-08 | 西南石油大学 | Device and method for evaluating influence of pressure change on completeness of cement sheath |
| CN105403505A (en) * | 2015-11-24 | 2016-03-16 | 安东石油技术（集团）有限公司 | Cementing interface bonding strength testing device and method |
| CN106771096A (en) * | 2016-12-09 | 2017-05-31 | 西南石油大学 | A kind of cementing concrete ring seal is every ability dynamic checkout unit and experimental technique |
| CN106593414A (en) * | 2017-01-10 | 2017-04-26 | 中国石油大学(北京) | Experimental device and method for testing cementing strength of cement loop and sleeving pipes |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622743B (en) * | 2018-12-19 | 2022-01-25 | 中国地质大学（北京） | Tiltable and eccentric cementing second interface cementing quality evaluation method |
| CN111622743A (en) * | 2018-12-19 | 2020-09-04 | 中国地质大学（北京） | Tiltable and eccentric cementing second interface cementing quality evaluation method |
| CN109681190B (en) * | 2019-03-07 | 2024-02-20 | 中国海洋石油集团有限公司 | High-temperature high-pressure well cement sheath seal integrity evaluation system |
| CN109681190A (en) * | 2019-03-07 | 2019-04-26 | 中国海洋石油集团有限公司 | Gas well at HTHP cement sheath sealing integrity evaluation system |
| CN110005400A (en) * | 2019-05-27 | 2019-07-12 | 青岛理工大学 | Hot dry rock stratum high-temperature hyperbaric environment wellbore casing-cement sheath cement plane test device |
| CN110005400B (en) * | 2019-05-27 | 2023-12-05 | 青岛理工大学 | Device for testing cementing surface of shaft sleeve and cement sheath in high-temperature and high-pressure environment of dry-hot rock stratum |
| CN112065364A (en) * | 2019-06-10 | 2020-12-11 | 中国石油天然气股份有限公司 | Well cementation performance determining device |
| CN112065364B (en) * | 2019-06-10 | 2023-11-28 | 中国石油天然气股份有限公司 | Well cementation performance determining device |
| CN110578494B (en) * | 2019-09-06 | 2021-03-26 | 中国石油大学(北京) | Cement sheath initial stress state monitoring experiment device |
| CN110578494A (en) * | 2019-09-06 | 2019-12-17 | 中国石油大学(北京) | Cement sheath initial stress state monitoring experiment device |
| CN112523746A (en) * | 2019-09-17 | 2021-03-19 | 中国石油化工股份有限公司 | Cement sheath sealing test device for simulating real stratum interface conditions |
| CN111088977B (en) * | 2019-12-12 | 2023-01-06 | 中国石油天然气股份有限公司 | Experimental device and experimental method for well cementation annular pressurization |
| CN111088977A (en) * | 2019-12-12 | 2020-05-01 | 中国石油天然气股份有限公司 | Experimental device and experimental method for well cementation annular pressurization |
| CN111504898A (en) * | 2020-01-10 | 2020-08-07 | 长江大学 | Experimental device and method for evaluating cement ring interface bonding strength under high-temperature and high-pressure conditions |
| CN111504898B (en) * | 2020-01-10 | 2022-12-16 | 长江大学 | Experimental device and method for evaluating cement ring interface bonding strength under high-temperature and high-pressure conditions |
| CN111305820A (en) * | 2020-03-11 | 2020-06-19 | 中海石油(中国)有限公司 | Ultrahigh-temperature high-pressure gas well interlayer pressure packing evaluation device |
| CN114109362A (en) * | 2020-09-01 | 2022-03-01 | 中国石油化工股份有限公司 | Device and method for evaluating performance of well cementation cement sheath with multiple cementing surfaces for oil and gas wells |
| CN111997589A (en) * | 2020-09-10 | 2020-11-27 | 西南石油大学 | Full-size cement sheath packing capacity and bonding strength testing device and testing method thereof |
| CN114518294A (en) * | 2020-11-19 | 2022-05-20 | 中国石油化工股份有限公司 | Cement sheath sealing capability evaluation device |
| CN112855119A (en) * | 2021-01-15 | 2021-05-28 | 中国石油大学(北京) | Experimental device and method for simulating well cementation fatigue limit |
| CN115653567A (en) * | 2022-08-16 | 2023-01-31 | 吉林大学 | Experimental device and method for evaluating well wall stability effect |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108868746A (en) | The anti-experimental provision and its experimental method for altering ability of test well cementation cement plane | |
| CN105510142B (en) | A kind of axle crushing test device of coal petrography multiphase different fluid three and test method | |
| CN103075147B (en) | A kind of underground environment simulation device and method | |
| CN103556993B (en) | Low permeability oil field plane Five-point method pattern carbon dioxide flooding emulation experiment analogy method | |
| CN109681190A (en) | Gas well at HTHP cement sheath sealing integrity evaluation system | |
| CN202417474U (en) | Composite simulation test oil well | |
| CN106761679A (en) | The evaluating apparatus and method of a kind of the first interface agglutination quality of eccentric test well cementation | |
| CN108798660B (en) | Stress measuring device by hydraulic fracturing method | |
| CN203756119U (en) | Sleeve subassembly for simulated cementation test | |
| CN107620585A (en) | The physical simulation experiment device and its method of horizontal well spiral perforation successively pressure break | |
| CN105649585B (en) | Flood suction integrated pipe column and its operating procedure | |
| CN104807850B (en) | It is a kind of measure oil/gas well wellbore fluids, oil well pipe thermodynamic parameter experimental provision and method | |
| CN111679061B (en) | Frozen soil stratum melting and sedimentation test simulation device and method | |
| CN210105843U (en) | High-temperature high-pressure gas well cement sheath sealing integrity evaluation system | |
| CN106812523A (en) | A kind of multiple seam coal bed gas well mining physical simulating device and its experimental technique | |
| CN106401577A (en) | Visual testing device and method for simulating bottom water coning of bottom water gas reservoir gas well | |
| CN203756155U (en) | Well cementation failure evaluation device | |
| CN105178908B (en) | The chemical grouting packing device and method of down-hole formation closure | |
| CN203081430U (en) | High-temperature and high-pressure sand bed leaking stoppage simulation device | |
| CN106593411A (en) | Experimental device and method for airtightness of cement sheath and uplifting of casings | |
| CN110984926A (en) | Intelligent control layered oil production well completion pipe string system and control method thereof | |
| CN111550187A (en) | Liquid nitrogen jet comprehensive experiment system under confining pressure | |
| CN220395674U (en) | Underground radio frequency heating oil displacement test device for thickened oil exploitation | |
| CN104806211B (en) | One kind takes over calm the anger extracting device of oil and method | |
| CN105422025B (en) | A kind of device and method for evaluating flushing liquor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20181123 |
|
| RJ01 | Rejection of invention patent application after publication |