CN205374228U - Grout performance test system - Google Patents
Grout performance test system Download PDFInfo
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- CN205374228U CN205374228U CN201521116665.5U CN201521116665U CN205374228U CN 205374228 U CN205374228 U CN 205374228U CN 201521116665 U CN201521116665 U CN 201521116665U CN 205374228 U CN205374228 U CN 205374228U
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Abstract
The utility model discloses a grout performance test system, it includes: the casing that consistent break -over was said has, the inside quiet gel strength testing arrangement of grout who is used for monitoring the quiet gel strength of grout that is provided with of casing, the quiet gel strength testing arrangement of grout includes ultrasonic transducer and/or stirring testing arrangement. Set up in the sealed lid of casing upper end, set up in the base of casing lower extreme, be provided with on the base and be used for monitoring the weightless pressure sensor of grout. The utility model provides a grout performance test system can be used for the weightless process of the grout under the quiet gelatinization state of laboratory simulation grout, and the test obtains the weightless relation that develops with the quiet gel strength of grout of grout, supports for the steady technology measure of pressure after grout thick liquid post structural design and the cementing provides data.
Description
Technical field
This utility model relates to technical field of petroleum extraction, particularly to a kind of cement slurry property pilot system.
Background technology
After cementing construction terminates, cement mortar will be developed into solid-state by liquid, i.e. Behavior of Hardened Cement Paste.Cement mortar is under liquid condition, and head of liquid can be fully transmitted to shaft bottom, it is ensured that pressure.Steady bottom hole water layer, it is prevented that channelling occurs；When cement mortar develops into solid-state, namely under Behavior of Hardened Cement Paste state, owing to Behavior of Hardened Cement Paste state has certain intensity, it is possible to formation cementation, hydrocarbon stratum water channeling can be prevented.But it is not complete moment that cement mortar develops into Behavior of Hardened Cement Paste, but need to be transitioned into the state of " semi liquid state, semisolid ", i.e. gelatinized, this state will be greatly lowered head of liquid transmission efficiency, i.e. the weightlessness of cement mortar, and top head of liquid cannot be fully transmitted to shaft bottom, cause pressing steady inefficacy, do not formed again simultaneously intensity or and formation cementation, therefore very easily there is channelling in hydrocarbon stratum water layer, affects Inter-zonal packing quality.
At present, both at home and abroad cement mortar anti-channeling performance is mainly had two means: laboratory facilities and Theoretical Calculation.Theoretical side thinks that pressure transmission reduces after cement slurry weight loss, becomes cement mortar hydrostatic note pressure with formation water density conversion, and Theory comparison is coarse, and cement mortar when weightlessness can not be clear and definite, it is impossible to provide data supporting for the steady technological measure of the pressure after cementing.In experiment, mainly filling cement mortar in cylindrical cavity, the mode of cylindrical base employing load-bearing is monitored cement mortar and is carried out base pressure change with aquation, judges which kind of state cement mortar is in this.But, there is limitation in this method, it is impossible to during monitoring cement slurry weight loss, the state of cement mortar, i.e. liquid or gelatinized.
Utility model content
In order to overcome the drawbacks described above of prior art, this utility model embodiment technical problem to be solved there is provided a kind of cement slurry property pilot system, and it can monitor the state of cement mortar in cement slurry weight loss process.
The concrete technical scheme of this utility model embodiment is:
A kind of cement slurry property pilot system, comprising: have the housing of a penetrating via, described enclosure interior is provided with the cement mortar static gel strength test device for monitoring cement mortar static gel strength, and described cement mortar static gel strength test device includes ultrasound probe and/or stirring test device.It is arranged at the sealing lid of described housing upper end；It is arranged at the base of described housing lower end, described base is provided with the pressure transducer for monitoring cement slurry weight loss.
Preferably, described stirring test device includes being arranged at the blade of described enclosure interior by power transmission shaft through the described lid that seals.
Preferably, described ultrasound probe is two, and it is arranged at the sustained height of described housing, and two described ultrasound probes are relatively arranged on the both sides of described housing.
Preferably, described base offers the runner for passing into gas to enclosure interior.
Preferably, in the sidewall of described housing, offer the annular space that can house liquid, described housing is further opened with inlet and outlet that be connected with annular space, that pass in and out for liquid.
Preferably, described housing at least includes the three part housing that the second segment housing that first paragraph housing is connected is connected with second segment housing with first paragraph housing, described stirring test device is arranged at described first paragraph housing place, described ultrasound probe is arranged at described second segment housing place, and described three part housing place is provided with the through hole of opening and closing.
Preferably, it is provided with filter screen in the through hole that described housing is offered.
The technical solution of the utility model has following notable beneficial effect:
1, the cement slurry property pilot system that this utility model provides can be used in the cement slurry weight loss process under the quiet gelatinized of laboratory simulation cement mortar, test obtains the relation of cement slurry weight loss and the development of cement mortar static gel strength, starches the steady technological measure of pressure after rod structure design and cementing for cement mortar and provides data supporting.
2, this cement slurry property pilot system is while monitoring cement mortar bottom liquid column pressure, it is possible to cement grout column bottom nitrogen injection, and then test obtains the ability of different times cement mortar anti-gas channeling.
3, this cement slurry property pilot system is easy to operate, can approximate simulation down-hole true environment.
Accompanying drawing explanation
Accompanying drawing described here only for illustrative purposes, and is not intended to limit this utility model scope of disclosure by any way.It addition, the shape of each parts in figure and proportional sizes etc. are only schematic, it is adapted to assist in understanding of the present utility model, is not the shape and the proportional sizes that specifically limit each parts of this utility model.Those skilled in the art is under instruction of the present utility model, it is possible to select various possible shape and proportional sizes to implement this utility model as the case may be.
Fig. 1 is the structural representation of this utility model cement slurry property pilot system the first half.
Fig. 2 is the structural representation of this utility model cement slurry property pilot system the latter half.
The accompanying drawing labelling of the figures above:
1, housing；11, first paragraph housing；12, second segment housing；13, three part housing；14, the 4th piece housing；15, annular space；16, import；17, outlet；18, through hole；19, box cupling；2, cement mortar static gel strength test device；21, stirring test device；211, power transmission shaft；212, blade；22, ultrasound probe；3, lid is sealed；4, base；41, runner；42, screw rod；43, nut；5, pressure transducer.
Detailed description of the invention
Description in conjunction with accompanying drawing and this utility model detailed description of the invention, it is possible to clearly understand details of the present utility model.But, detailed description of the invention of the present utility model described here, only it is used for explaining the purpose of this utility model, and can not be understood as by any way is to restriction of the present utility model.Under instruction of the present utility model, technical staff is it is contemplated that based on arbitrarily possible deformation of the present utility model, these are regarded as belonging to scope of the present utility model.
Fig. 1 is the structural representation of this utility model cement slurry property pilot system the first half, Fig. 2 is the structural representation of this utility model cement slurry property pilot system the latter half, as shown in Figure 1, shown in Fig. 2, a kind of cement slurry property pilot system, comprising: have the housing 1 of a penetrating via, housing 1 is internally provided with the cement mortar static gel strength test device 2 for monitoring cement mortar static gel strength, and cement mortar static gel strength test device 2 includes ultrasound probe 22 and/or stirring test device 21.It is arranged at the sealing lid 3 of housing 1 upper end；It is arranged at the base 4 of housing 1 lower end, base 4 is provided with the pressure transducer 5 for monitoring cement slurry weight loss.
Specifically, housing 1 has a penetrating via, can house cement mortar in this penetrating via.Being really environment to simulate in well, housing 1 is generally speaking similar to oil pipe shape, and it can be cylindrical, wherein the circular in cross-section of penetrating via.Owing to housing 1 has certain length, if housing 1 is an entirety, after it is vertical, not easily carry out due to height reason assembling and connect other test setting, it is shown that housing 1 is split into multiple part, assembles to facilitate.So, described housing 1 at least includes the three part housing 131 that the second segment housing 121 that first paragraph housing 111 is connected is connected with second segment housing 121 with first paragraph housing 111.Described first paragraph housing 111, it is connected by box cupling 19 between described second segment housing 121 and described three part housing 131.
Housing 1 is internally provided with the cement mortar static gel strength test device 2 for monitoring cement mortar static gel strength, and cement mortar static gel strength test device 2 can include ultrasound probe 22 and/or stirring test device 21.The upper end of first paragraph housing 111 can be provided with the sealing lid 3 that housing 1 upper end is sealed.Stirring test device 21 includes being arranged at the blade 212 within described housing 1 by power transmission shaft 211 through sealing lid 3.
The inside of first paragraph housing 111 can be provided with the blade 212 for monitoring cement mortar static gel strength, this blade 212 is arranged at first paragraph housing 111 inside by power transmission shaft 211 through sealing lid 3, power transmission shaft 211 can vertically be arranged, so, drive blade 212 rotate driving device, such as motor, it is possible to be arranged on the outside of housing 1 or seal the upper end of lid 3.
Second segment housing 121 place can be provided with the ultrasound probe 22 for monitoring cement mortar static gel strength, and ultrasound probe 22 wears into housing 1 internal by the sidewall of second segment housing 121.In the present embodiment, ultrasound probe 22 is two, and it is arranged at the sustained height of second segment housing 121.Meanwhile, two ultrasound probes 22 can be relatively arranged on the both sides of second segment housing 121.Cement mortar static gel strength test device 2 can only install ultrasound probe 22 and stirring test device 21 one of them, so, just can complete the test to cement mortar static gel strength.Certain, such as in the present embodiment, ultrasound probe 22 and stirring test device 21 can also be installed simultaneously, by mode two kinds different, cement mortar static gel strength is tested, ultrasound probe 22 tests the cement mortar static gel strength curve developed in time, stirring test device 21 tests the cement mortar static gel strength curve developed in time, can be fitted obtaining the final cement mortar static gel strength curve developed in time according to two curves, the process of matching can be various ways, the comparatively conventional method that can directly adopt averaged, the so later cement mortar static gel strength data finally given by equipment two kinds different are more accurately and reliably.
The side-walls of the three part housing 131 in housing 1 can be provided with through hole 18, and this through hole 18 is positioned at the lower end of three part housing 131 sidewall, and it can be circumferentially distributed on the sidewall of three part housing 131 around the axis of three part housing 131.When, after housing 1 internal injection cement mortar, this through hole 18 may be used for the water discharged in housing 1 in cement mortar.Being also provided with filter screen in the through hole 18 that housing 1 is offered, this filter screen is for ensureing to discharge the water in cement mortar by through hole 18, it is prevented that cement mortar also flows out from through hole 18.
The lower end of three part housing 131 is provided with base 4, the lower section of base 4 can be provided with pad, plain cushion can offer multiple perforate, through screw rod 42 by being connected nut 43 and spring washer with base 4 in the perforate of pad, thus reaching to install fixing effect.Upper surface at base 4 is provided with pressure transducer 5, so, after injecting cement mortar in housing 1, can monitor the pressure bottom cement mortar in real time by this pressure transducer 5.
The operating process of this utility model cement slurry property pilot system is as follows: first paragraph housing 111, second segment housing 121, three part housing 131 are fitted together successively by box cupling 19, the lower end of three part housing 131 is sealed by base 4, cement mortar is injected in the penetrating via of the upper direction housing 1 of first paragraph housing 111, cover the sealing lid 3 of housing 1 upper end so that blade 212 inserts in cement mortar.Slowly it is transformed in Behavior of Hardened Cement Paste in process at cement mortar, by rotating blade 212 and being positioned at the ultrasound probe 22 of second segment housing 121 and monitor the state of cementitious grout, the i.e. intensity of cement mortar in real time, and then judges that cement mortar is in gelatinized or liquid.In the conversion process of cement mortar, water in cement mortar is slowly discharged from the through hole 18 of three part housing 131 sidewall, the water discharged from through hole 18 can be collected in the outside of housing 1, obtained the water yield of the water discharged by modes such as graduated cylinders, and then understand its dehydration performance.Along with cement mortar is slowly weightless, the pressure transmission ability of cement mortar reduces, and the pressure bottom cement mortar reduces, and monitors the pressure changing bottom cement mortar in real time by the pressure transducer 5 of installation settings on base 4, and then reflects the reduced gravity situations of cement mortar.In the process of cement slurry weight loss, it is also possible to pressurize to inside housing 1 through sealing lid 3 in the upper end of housing 1, so, it is possible to test the real-time reduced gravity situations obtaining cement mortar under elevated pressure conditions.
The cement slurry property pilot system that this utility model provides can be used in the cement slurry weight loss process under laboratory simulation cementitious grout state, test obtains the relation of cement slurry weight loss and the development of cement mortar static gel strength, starches the steady technological measure of pressure after rod structure design and cementing for cement mortar and provides data supporting.
In one preferred embodiment, base 4 offers the runner 41 for passing into gas to housing 1 inside.When, after housing 1 internal injection cement mortar, this runner 41 is for the bottom nitrogen injection in phase housing 1.While monitoring cement mortar base pressure, the nitrogen of different flow can be injected to cement grout column bottom, and then test obtains the ability of cement mortar anti-gas channeling under different time, owing to test obtains under different time the gelatinized residing for cement mortar, so the anti-gas channeling ability obtaining cement mortar under different gel states can be tested, the performance of the anti-gas channeling ability of cement mortar can judge according to the situation being replaced out according to the water in cement mortar top bubbling situation or cement mortar after passing into gas.
In one preferred embodiment, in the sidewall of housing 1, offer the annular space 15 that can house liquid, described housing 1 is further opened with import 16 that be connected with annular space 15, that pass in and out for liquid and outlet 17.When cement mortar is tested, from annular space 15, import 16 passes into high-temp liquid, liquid can be the oily substance that boiling point is higher, high-temp liquid flows out from outlet 17 after being full of annular space 15, after the liquid flowed out is heated by other heater outside housing 1, recirculation passes into the annular space 15 of housing 1 from well head, by the way, housing 1 is internally heated so that housing 1 and its internal cement mortar are under high temperature, and then the condition of high temperature of cement mortar in actual well cementation can be simulated when experiment, thus test obtains cement mortar dehydration performance at high operating temperatures, the different gelatinized of cement mortar, reduced gravity situations etc..
In one preferred embodiment, described housing 1 also includes the 4th piece housing 141 for adjusting described housing 1 length that is arranged between described second segment housing 121 and described three part housing 131.4th piece housing 141 can be random length, so, it is possible to by the 4th piece housing 141, the total length of housing 1 is changed so that practical situation that the total length of housing 1 can be simulated as required and be adjusted.
In the application, the operating procedure of cement slurry property pilot system is as follows:
The cement mortar of test is injected in housing 1.It is first turned in cement slurry property pilot system and seals lid 3, the cement mortar that stirring prepares test is injected in housing 1, till being filled substantially with housing 1, close sealing lid 3.
Being stood by housing 1, the cement mortar in housing 1 changes as time go by, in the process of cement mortar change, tests device 2 by cement mortar static gel strength and is monitored obtaining the static gel strength of cement mortar under predetermined amount of time to cement mortar in housing 1.Wherein, predetermined amount of time can be the time period from on-test to off-test.Cement mortar static gel strength test device 2 can include ultrasound probe 22 and/or stirring test device 21, so when detecting the static gel strength of cement mortar under predetermined amount of time, can only use a ultrasound probe 22, or only use a stirring test device 21, ultrasound probe 22 and stirring test device 21 can also be used, to increase accuracy and the reliability of Monitoring Data simultaneously.
In the process that housing 1 stands, it is monitored obtaining the pressure value of cement mortar under predetermined amount of time to cement mortar by pressure transducer 5.As time go by, the state of cement mortar changes, especially in gel process, the transmission efficiency of cement grout column pressure reduces, the cement mortar pressure value that monitoring obtains diminishes, cement slurry weight loss, is monitored the pressure obtained under predetermined amount of time bottom cement mortar, and then obtains the Weight loss data of cement mortar by pressure transducer 5 bottom housing 1.
In the conversion process of whole cement mortar, test device 2 by cement mortar static gel strength and can obtain the static gel strength of real-time cement mortar and be obtained the pressure value of real-time cement mortar by pressure transducer 5.Above-mentioned two class data are combined so can according under predetermined amount of time cement mortar static gel strength and under predetermined amount of time the pressure value of cement mortar obtain the Weight loss data of time quiet gelatinized of cement mortar and cement mortar sometime.Wherein, the lower quiet gelatinized of cement mortar sometime is may determine that by the static gel strength of cement mortar under predetermined amount of time, the Weight loss data of above-mentioned lower cement mortar sometime can be obtained by the pressure value of cement mortar under predetermined amount of time, and then obtain the Weight loss data of the lower quiet gelatinized of cement mortar and cement mortar sometime.
In above process, after the cement mortar of test is injected into housing 1, it is possible to pass into high-temp liquid to be heated the cement mortar in housing 1 to predetermined temperature to the annular space 15 in housing 1 sidewall, thus test obtains cement mortar dehydration performance at a predetermined temperature.Can also to pump-in pressure liquid in housing 1 to improve pressure in housing 1 under predetermined pressure, thus test obtains cement mortar dehydration performance under predetermined pressure.nullWherein，Liquid can be the oily substance that boiling point is higher，High-temp liquid flows out from outlet 17 after being full of annular space 15，After the liquid flowed out is heated by other heater outside housing 1, recirculation passes into from well head the annular space 15 of housing 1，By the way，Housing 1 is internally heated so that housing 1 and its internal cement mortar heating are to testing required temperature value，And then the condition of high temperature of cement mortar in actual well cementation can be simulated at the trial，By pump-in pressure liquid to improve the pressure in housing 1，And then cement mortar is in high pressure conditions in simulation reality well cementation，By both modes，Make cement mortar under being in different temperature and/or different pressure status，Experimentation can obtain the dehydration performance of cement mortar in housing 1 by the volume or quality weighing discharge water in housing 1，Can also by weighing the situation of change of the quality of whole housing 1 and then obtaining the amount of cement slurry water loss in housing 1 and then obtain the dehydration performance of cement mortar in housing 1 in experimentation，The different gelatinized and Weight loss data that obtain cement mortar at different temperature and/or different pressure status can also be tested simultaneously.
After the cement mortar of test is injected into housing 1, it is also possible to inject gas under different time bottom housing 1 to test the anti-gas channeling ability of cement mortar under different time.Wherein, the gas generally passed in process of the test is nitrogen, so can ensure that the safety in process of the test.Owing to the cement mortar quiet gelatinized under different time and Weight loss data can be obtained by cement mortar static gel strength test device 2 and pressure transducer 5, so, the cement mortar anti-gas channeling ability in different quiet gel states and weightlessness can be obtained further by the anti-gas channeling ability of cement mortar under test different time.
In this utility model, cement slurry property pilot system is easy to operate, it can approximate simulation down-hole true environment, wherein, the annular space 15 at housing 1 sidewall can be passed through and pass through the temperature that the Fluid simulation down-hole after heating is different, can pass through to apply different pressure in housing 1 inner upper end and then simulate the pressure that down-hole is different, the has channeling situation to the internal nitrogen injection of housing 1 and then simulation down-hole in the base 4 below housing 1 can also be passed through, so, native system can obtain cement slurry weight loss and the anti-gas channeling ability of cement mortar under the relation that cement mortar static gel strength develops and different quiet gel states and weightlessness under different temperatures and pressure, the steady technological measure of pressure after better starching rod structure design and cementing for cement mortar provides data supporting.
Each embodiment in this specification all adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually referring to.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this.All equivalences made according to this utility model spirit change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (7)
1. a cement slurry property pilot system, it is characterised in that comprising:
Having the housing of a penetrating via, described enclosure interior is provided with the cement mortar static gel strength test device for monitoring cement mortar static gel strength, and described cement mortar static gel strength test device includes ultrasound probe and/or stirring test device；
It is arranged at the sealing lid of described housing upper end；
It is arranged at the base of described housing lower end, described base is provided with the pressure transducer for monitoring cement slurry weight loss.
2. cement slurry property pilot system according to claim 1, it is characterised in that described stirring test device includes being arranged at the blade of described enclosure interior by power transmission shaft through the described lid that seals.
3. cement slurry property pilot system according to claim 1, it is characterised in that described ultrasound probe is two, and it is arranged at the sustained height of described housing, and two described ultrasound probes are relatively arranged on the both sides of described housing.
4. cement slurry property pilot system according to claim 1, it is characterised in that offer the runner for passing into gas to enclosure interior on described base.
5. cement slurry property pilot system according to claim 1, it is characterised in that offer the annular space that can house liquid in the sidewall of described housing, described housing is further opened with inlet and outlet that be connected with annular space, that pass in and out for liquid.
6. cement slurry property pilot system according to claim 1, it is characterized in that, described housing at least includes the three part housing that the second segment housing that first paragraph housing is connected is connected with second segment housing with first paragraph housing, described stirring test device is arranged at described first paragraph housing place, described ultrasound probe is arranged at described second segment housing place, and described three part housing place is provided with the through hole of opening and closing.
7. cement slurry property pilot system according to claim 6, it is characterised in that be provided with filter screen in the through hole that described housing is offered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521116665.5U CN205374228U (en) | 2015-12-29 | 2015-12-29 | Grout performance test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521116665.5U CN205374228U (en) | 2015-12-29 | 2015-12-29 | Grout performance test system |
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| CN205374228U true CN205374228U (en) | 2016-07-06 |
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| CN201521116665.5U Active CN205374228U (en) | 2015-12-29 | 2015-12-29 | Grout performance test system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571991A (en) * | 2015-12-29 | 2016-05-11 | 中国石油天然气集团公司 | Cement slurry performance test system and a method thereof |
| CN110057916A (en) * | 2018-01-19 | 2019-07-26 | 宏峰·毕 | Cement analyzer |
-
2015
- 2015-12-29 CN CN201521116665.5U patent/CN205374228U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571991A (en) * | 2015-12-29 | 2016-05-11 | 中国石油天然气集团公司 | Cement slurry performance test system and a method thereof |
| CN105571991B (en) * | 2015-12-29 | 2019-02-15 | 中国石油天然气集团公司 | Cement slurry property pilot system and its method |
| CN110057916A (en) * | 2018-01-19 | 2019-07-26 | 宏峰·毕 | Cement analyzer |
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