CN204405445U - Gel profile control agent device for measuring properties in reservoir - Google Patents
Gel profile control agent device for measuring properties in reservoir Download PDFInfo
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- CN204405445U CN204405445U CN201520133826.5U CN201520133826U CN204405445U CN 204405445 U CN204405445 U CN 204405445U CN 201520133826 U CN201520133826 U CN 201520133826U CN 204405445 U CN204405445 U CN 204405445U
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Abstract
The utility model is Gel profile control agent device for measuring properties in a kind of reservoir, comprises pore throat simulator, and pore throat simulator at least comprises the first tube chamber and the second tube chamber, and the second tube chamber is coaxially arranged on the rear end of the first tube chamber and internal diameter is less than the first tube chamber; The junction of the first tube chamber and the second tube chamber forms the first reducing diameter part, and this first reducing diameter part has the excessive section of taper; Be provided with sampler in the internal sleeve of the first tube chamber front end, this sampler is cylindrical shape, and the outer wall of sampler is fitted in the inwall of the first tube chamber; The front end of the first tube chamber is provided with end sealing device, and this end sealing device is connected with a pump by pipeline, and the first tube chamber is communicated with this pump seal.This utility model is easy and simple to handle, the test duration is short, accuracy is high, favorable repeatability, can under same standard the gel rubber system of a series of different performance of quantitative measurment, analogy is strong.Fundamentally solve the problem that the proving installation of qualitative observation, different performance gel in the test of gel in the past and evaluation criterion differ.
Description
Technical field
The utility model is about a kind of gel quantitative measurment of plugging characteristics and device of sign in porous medium, particularly relates to Gel profile control agent device for measuring properties in a kind of reservoir.
Background technology
At present, domestic most oil field all enters the High water cut stage, and tackling the main measure that moisture rising is fast, water breakthrough water logging is serious is implement profile control and water plugging.Gel as a kind of the most frequently used plugging agent in each elephant widespread use.Because the reservoir condition in each oil field is different, the performance of the Gel profile control agent of requirement is also different.Therefore, evaluating the basic parameter of gel in reservoir and performance index are very necessary, is also screening and the foundation of Gel profile control agent under researching and developing corresponding reservoir condition.
Existing Gel profile control agent performance test methods in reservoir mainly contains following a few class:
The first kind is grade division method: the method has carried out classification by the detailed description of gel to gel strength characteristics, but this describing method is qualitative analysis, accurately can not distinguish the gel strength of different formulations, be difficult to realize quantitative contrast.
Equations of The Second Kind is needling method: the method utilizes the self gravitation of pointed pin in certain altitude dropping process, and the penetration resistance produced when entering gel by pin characterizes the plugging characteristics of gel in reservoir water stream channel; Or utilize a upper end with the glass bar of pallet, the counterweight of certain mass is put into pallet, according to the plugging characteristics going deep into gellation and reflect gel.Although it is simple that the method measures gel plugging characteristics, have the following disadvantages: 1. pin enters process and is difficult to accurate control, and error is large, repeatable poor; 2. the method is that the resistance indirection table entered by pin is sought peace and measured gel plugging characteristics, gel stress and its different in reservoir water stream channel or rock core, cannot quantitatively characterizing gel in reservoir porous to the shut-off capacity of pore throat, can only Quasi-quantitative measurement; 3. the method enters in gel to characterize plugging characteristics by pin, so can only measure strong gel, for Weak Gels, cannot ensure that its pin is stabilized in gel after entering certain depth, restricted application.
3rd class is falling ball method: the method is placed on by the steel ball of certain mass gel to be housed in vitro, by observing the plugging characteristics of steel ball submersible depth qualitative analysis gel.It is simple to operate that falling ball method measures gel plugging characteristics, but be 1. subject to the restriction of steel ball quality, the result difference that different quality steel ball is measured is comparatively large, and error is large; 2. this measurement device submersible depth judge gel plugging characteristics and field evaluation standard totally different, poor reliability, can only characterize gel plugging characteristics by Semi-qualitative; 3. cannot simulate the stress of gel in hole after plastic, belong to indirect inspection gel plugging characteristics; 4. because the method can be submerged premised on gel by steel ball, so Weak Gels intensity can only be measured, cannot from Weak Gels to strong gel continuous coverage, measurement range is limited.
4th class is vacuum tightness determination method: the method ungelled gel solution is placed in the vierics connecting vacuum plant, after its plastic, under certain vacuum tightness, gel is sucked in the kapillary connected, evaluate the plugging characteristics of gel by measuring the vacuum tightness sucked needed for unit hollow billet volume gel, wherein vacuum tightness is controlled by needle valve.Although the method is simple to operate, analogy is good, the pressure reduction 1. due to vacuum plant generation is limited, can only measure Weak Gels plugging characteristics; What 2. record in kapillary is skid resistance, is caused by tube wall and gel slippage, is not the plugging strength of gel, can not characterize gel plugging characteristics to water stream channel in oil reservoir.
5th class is viscosimetry: utilize viscosity meter or flow graph to measure the apparent viscosity of gel solution, finally to stablize the plugging characteristics that apparent viscosity value has as gel in different time sections.The method 1. the test duration longer; 2. testing cost is higher; 3. stress and the gel stress difference in reservoir porous is comparatively large, and the gel apparent viscosity recorded can only characterize its plugging characteristics indirectly; 4. for strong gel, characterize plugging characteristics by viscosity and lack scientific, measurement range is limited.
6th class is breakthrough pressure gradient method: be injected in the fill out sand tube of saturation water by the non-plastic gel solution of certain volume of voids, after treating its plastic, continue water drive, pressure during record output first drip fluid, is converted into pressure gradient to characterize gel plugging characteristics.Although the method effectively can simulate the situation of gel in reservoir pore, reach Comparative and Quantitative Analysis, need to carry out at good indoor conditions, complicated operation, be difficult to application at the scene.
Although have a lot for the performance test methods of Gel profile control agent in reservoir at present, all also exist qualitative observation, cannot be few and test the deficiencies such as loaded down with trivial details, cost is high, repeatability is poor from Weak Gels to parameters such as the key propertys of the continuous same canonical measure of strong gel, acquisition.Therefore for the research and development of Gel profile control agent performance test methods and device in reservoir be at present in the urgent need to.In view of above deficiency, be necessary that provide a kind of measures the device from Weak Gels to strong gelling performance quantitatively with same set of device and evaluation criterion in shutoff reservoir water breakthrough passage process at present.
Thus, the present inventor relies on experience and the practice of being engaged in relevant industries for many years, proposes Gel profile control agent device for measuring properties in a kind of reservoir, to overcome the defect of prior art.
Utility model content
The purpose of this utility model is to provide Gel profile control agent device for measuring properties in a kind of reservoir, realize in shutoff reservoir water breakthrough passage process, the measures of quantization of the stock performances such as the elastoplasticity from the viscosity of Weak Gels to strong gel and sealing characteristics and sign, fundamentally solve qualitative observation in the test of gel in the past and can not the deficiency of comparative analysis under same device and evaluation criterion; And testing cost is low, the test duration is short, easy and simple to handle, accuracy is high and favorable repeatability.
Another object of the present utility model is to provide Gel profile control agent device for measuring properties in a kind of reservoir, can measure the change of the performance of gel in reservoir migration process, is also stability, reflects the different modes of gel by pore throat simultaneously.
An object more of the present utility model is to provide Gel profile control agent device for measuring properties in a kind of reservoir, ensures that sampling time ratio is easier to cut gel sample, reduces due to blunt and cause tremelloid shear failure, reduce the distortion of measurement.
The purpose of this utility model realizes like this, Gel profile control agent device for measuring properties in a kind of reservoir, described measurement mechanism comprises a pore throat simulator, this pore throat simulator at least comprises one section of first tube chamber and one section of second tube chamber, and described second tube chamber is coaxially arranged on the rear end of the first tube chamber and internal diameter is less than the first tube chamber; The junction of described first tube chamber and the second tube chamber forms the first reducing diameter part, and this first reducing diameter part has the excessive section of taper; Be provided with a sampler in the internal sleeve of described first tube chamber front end, this sampler is cylindrical shape, and the outer wall of sampler is fitted in the inwall of the first tube chamber; The front end of described first tube chamber is provided with an end sealing device, and this end sealing device is connected with a pump by pipeline, and described first tube chamber is communicated with this pump seal.
In a better embodiment of the present utility model, pore throat simulator also comprises and is arranged on described second tube chamber multistage tube chamber below, described multistage tube chamber below is coaxially connected successively from front to back and is communicated, and form multiple reducing diameter part and wide diameter portion, at described reducing diameter part and wide diameter portion, all there is the excessive section of a taper.
In a better embodiment of the present utility model, after described second tube chamber, be provided with the 3rd tube chamber and the 4th tube chamber successively; The internal diameter of described 3rd tube chamber is greater than the internal diameter of the second tube chamber, and the internal diameter of the 4th tube chamber is less than the internal diameter of the 3rd tube chamber, forms the second reducing diameter part in the junction of the 3rd tube chamber and the 4th tube chamber.
In a better embodiment of the present utility model, pore throat simulator is a right cylinder, and cylindrical inside is coaxially provided with described tube chamber; Described end sealing device comprises a seal sleeve and an end cover, and described seal sleeve thread seal is connected to the outside of pore throat simulator front end, and end cover thread seal is connected to the front end of seal sleeve; The central authorities of end cover are provided with through hole, and this through hole is communicated with the first tube chamber, and described pipeline and this through hole are tightly connected.
In a better embodiment of the present utility model, the front end of sampler is provided with the annular flange flange of radially outward stretching out, and rear end is annular cutting blade; This annular flange flange is resisted against the front end of pore throat simulator; Described end cover is provided with projection, and this projection is threaded with seal sleeve, and projection is pressed in the annular flange flange of sampler, and is provided with O-ring seal between projection and annular flange flange.
From the above mentioned, measurement mechanism of the present utility model can measures of quantization and characterize the stock performances such as elasticity from the viscosity of Weak Gels to strong gel and plugging strength, stability and by sealing characteristics such as pore throat modes, easy and simple to handle, implementation cost is low, the test duration is short, accuracy is high, favorable repeatability, can under same standard the gel rubber system of a series of different performance of quantitative measurment, test result analogy is strong.The sampler adopted can cut gel sample than being easier to, and reduces due to blunt and cause tremelloid shear failure, reduces the distortion of measurement.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1: be a kind of embodiment of pore throat simulator in the utility model measurement mechanism.
Fig. 2: be the another kind of embodiment of pore throat simulator in the utility model measurement mechanism.
Fig. 3: be the structural representation of pore throat simulator and end sealing device in the utility model measurement mechanism.
Fig. 4: be the schematic diagram of sampler in the utility model measurement mechanism.
Fig. 5 A-5D: be four the repeated measuring results schematic diagram adopting the utility model measurement mechanism to implement.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and embodiment of the present utility model is described.
See Fig. 1 to Fig. 3, the utility model provides Gel profile control agent device for measuring properties 10 in a kind of reservoir, this measurement mechanism 10 comprises a pore throat simulator 1, pore throat simulator 1 is a vitals of this measurement mechanism 10, as shown in Figure 1, pore throat simulator 1 at least comprises one section of first tube chamber 11 and one section of second tube chamber 12, second tube chamber 12 is coaxially arranged on the rear end of the first tube chamber 11 and the second tube chamber 12 internal diameter is less than the first tube chamber 11 internal diameter, thus form the first reducing diameter part 15 in the junction of the first tube chamber 11 and the second tube chamber 12, this first reducing diameter part 15 has the excessive section of taper.For the hole in simulation reservoir and throat, pore throat simulator 1 can also comprise and is arranged on the second tube chamber 12 multistage tube chamber below, multistage tube chamber below is coaxially connected successively from front to back and is communicated, and forms multiple reducing diameter part and wide diameter portion, all has the excessive section of a taper at reducing diameter part and wide diameter portion.Such as, as shown in Figure 2, in another embodiment of pore throat simulator 1 of the utility model measurement mechanism 10, the 3rd tube chamber 13 and the 4th tube chamber 14 is provided with successively after the second tube chamber 12, the internal diameter of the 3rd tube chamber 13 is greater than the internal diameter of the second tube chamber 12, the internal diameter of the 4th tube chamber 14 is less than the internal diameter of the 3rd tube chamber 13, thus forms the second reducing diameter part 16 in the junction of the 3rd tube chamber 13 and the 4th tube chamber 14.As shown in Figure 3, be provided with a sampler 2 in the internal sleeve of the first tube chamber 11 front end, this sampler 2 is cylindrical shape (see Fig. 4), and the outer wall of sampler 2 is fitted in the inwall of the first tube chamber 11.The front end of the first tube chamber 11 is provided with an end sealing device, and this end sealing device is connected with a pump by pipeline, and the first tube chamber 11 is communicated with this pump seal, and pipeline and pump are not shown in the drawings.
Further, in the specific implementation, pore throat simulator 1 can be designed as a right cylinder, is coaxially provided with above each tube chamber said in cylindrical inside; Each tube chamber can be formed in an overall right cylinder, also by right cylinder step-by-step design, namely can be formed with the tube chamber of at least two sections of different inner diameters in each section of right cylinder, experimental needs, be serially connected successively by multistage right cylinder.As shown in Figure 3, end sealing device comprises seal sleeve 3 and an end cover 4, and seal sleeve 3 thread seal is connected to the outside of pore throat simulator 1 front end, and end cover 4 thread seal is connected to the front end of seal sleeve 3.The central authorities of end cover 4 are provided with through hole 41, and this through hole 41 is communicated with the first tube chamber 11, and pipeline and this through hole 41 are tightly connected.As shown in Figure 4, the front end of sampler 2 is provided with the annular flange flange 21 of radially outward stretching out, and rear end is annular cutting blade 22.When sampling, annular cutting blade 22 can be easier to cut gel sample, reduces due to blunt and cause tremelloid shear failure, avoids the distortion of measuring, the difficult problem that when solving sampling, gel viscoelasticity is larger on sampling amount impact, ensure that each test sampling amount is identical.After sampling, the sampler 2 with gel sample is put into the first tube chamber 11 front end of pore throat simulator 1, this annular flange flange 21 is resisted against the front end of pore throat simulator 1; End cover 4 is provided with protruding 42, and this projection 42 is threaded with seal sleeve 3, and protruding 42 are pressed in the annular flange flange 21 of sampler 2, and are provided with O-ring seal 5 between protruding 42 and annular flange flange 21.
Measurement mechanism of the present utility model, by the internal diameter of each tube chamber in setting pore throat simulator and length, to come in simulated formation from millimeter magnitude to the hole of micron dimension and venturi size and pore-throat ratio.As long as the reducing diameter part that the major diameter that has pore throat simulator excessively arrives minor diameter is just passable, fundamental purpose makes gel by this reducing diameter part, can obtain the relation between different gel deformation and its pressure reduction formed in this pore throat (plugging strength).If pore throat simulator has multiple reducing diameter part, gel can be simulated in the earth formation by the process of multiple pore throat, thus measure the change of the performance of gel in reservoir migration process, be also stability, and analyze the mode of gel by pore throat.When gel passes through multiple reducing diameter part in pore throat simulator, if the Pressure behaviour curve formed in different reducing diameter part is identical, then the stable performance of gel, gel passes through pore throat in the mode of elastic deformation, otherwise then unstable, and gel passes through pore throat in the mode of fragmentation.Use the sampler that end is sharply sharp, be easier to cut gel sample when ensureing sampling, reduce due to blunt and cause tremelloid shear failure, avoid the distortion of measuring, the difficult problem that when solving sampling, gel viscoelasticity is larger on sampling amount impact, ensure that each test sampling amount is identical.
Below for adopting the measuring method of the utility model measurement mechanism, this measuring method comprises the steps:
S1, intercept the gel sample of certain volume by sampler 2, the sampler 2 with gel sample is put into the first tube chamber 11 of pore throat simulator 1;
S2, front end with end sealing device sealing pore throat simulator 1, be connected to pump on end cover 4 by pipeline, and on pore throat simulator 1, need the position detected to connect pressure testing system; What pressure testing system adopted is pressure transducer, pore throat simulator need the position detected set pressure transducer, the layout of pressure transducer is mainly with upper/lower positions: a position is the inlet end (injection pressure) of the pore throat simulator be connected with pump, migrates to the pressure of different tube chamber section for monitoring at gel; Other positions to lay respectively on pore throat simulator major diameter tube chamber near reducing place, are used for carrying out pressure comparison, and reaction gel is changing by pressure during different tube chamber section or steadiness etc.The data that pressure transducer is measured are transferred to auto-real-time monitoring on computer;
S3, unlatching pump inject water with certain speed, and each tube chamber of pore throat simulator 1 clamp-oned by the gel promoted in sampler 2, and the arrow in Fig. 1 and Fig. 2 is depicted as pressure direction, until pore throat simulator broken through by gel;
The Pressure behaviour that S4, measurement gel are formed in the different tube chamber section of pore throat simulator 1, obtain the relation curve between the pressure of gel sample and its cubic deformation amount, according to this relation curve, analyze its viscosity or elasticity, evaluate the plugging strength of gel in reservoir pore throat, stability and the mode by pore throat.
Further, the pore throat simulator 1 used only can have the first tube chamber 11 and the second tube chamber 12; In step s3, promote the first reducing diameter part 15 that pore throat simulator 1 clamp-oned by gel, and make gel break through the second tube chamber 12.A section (namely gel moves to the first reducing diameter part) as shown in Figure 1, when gel moves to the reducing diameter part of pore throat simulator, pressure reduction rises, and is monitored by Pressure behaviour, maximum pressure value is the breakthrough pressure of gel, can be used for characterizing gel to the plugging strength of pore throat.And the material properties such as the elasticity of strong gel can be reflected from the linearity range of pressure and gel volume deflection curve, if linearity range slope is comparatively large, then illustrate that this gel rubber material elasticity is poor, be out of shape less after shutoff venturi, pressure sharply rises; If linearity range slope is less, illustrate that this elastic properties of materials ability is better, along with extruding there is deformation in it, and pressure increase is slower.Gel is comprised by the plugging characteristics of reducing diameter part: 1. gel and wall is bonding; 2. the elastic deformation of gel.B section (namely gel moves to the second tube chamber), this section is equivalent to capillary viscosimeter, and the pressure gradient recorded can be used for the conversion viscosity determining gel, reflects its migration resistance in venturi.The diameter of b section and length can adjust according to the performance of gel.For strong gel (frozen glue), the pressure recorded is skid resistance; For Weak Gels, can reduce the diameter of b section, increase the length of b section, the pressure recorded is Weak Gels viscosity resistance.
Further, the pore throat simulator 1 used can also have the first tube chamber 11, second tube chamber 12 of coaxial communication successively, the 3rd tube chamber 13 and the 4th tube chamber 14; As shown in Figure 2, in step s3, promote the first reducing diameter part 15 that pore throat simulator 1 clamp-oned by gel, enter the 3rd tube chamber 13 after making gel break through the second tube chamber 12, and clamp-on the second reducing diameter part 16, then break through the 4th tube chamber 14; In step s 4 which, the pressure parameter change of the first reducing diameter part 15 and the second reducing diameter part 16 broken through by contrast gel, judges the stability of gel plugging characteristics and the mode by pore throat, if both pressure are consistent, then gel stability is good, passes through pore throat in the mode of being out of shape; If both differing pressure are comparatively large, and the latter is significantly less than the former, then gel stability is poor, passes through pore throat in the mode of fragmentation.Concrete, a section in fig. 2 and b section, its effect is identical with b section with a section in Fig. 1.In c section (namely gel moves to the 3rd tube chamber), its effect is identical with the effect of b section, be equivalent to capillary viscosimeter, namely characterize its migration resistance in hole or venturi with gel mobile steady pressure formed in each tube chamber of pore throat simulator.Unlike the reaction of b section is the frictional resistance of gel in venturi, and the migration resistance of c section reflection gel in hole (if strong gel, is then skid resistance; If Weak Gels, be then viscosity resistance).D section (namely gel moves to the second reducing diameter part), gel is identical by the mechanism of d section with a section, and the object arranging d section is to contrast with a section, evaluates the stability of gelling performance in reservoir pore space and the mode by pore throat.If gel is comparatively identical at the pressure curve of a section and d section, when illustrating that gel enters into the 3rd tube chamber by the second tube chamber, elastic deformation can return to original degree, do not have performance loss, good stability, gel passes through pore throat in the mode of elastic deformation; Otherwise if the pressure curve difference of a section and d section is comparatively large, plugging strength reduces, then show that gel there occurs fragmentation when entering into the 3rd tube chamber by the first reducing diameter part and the second tube chamber, the stability of gel is poor, and gel passes through pore throat in the mode of fragmentation.
Below the concrete test process of two the different objects adopting the utility model to carry out is described.
Embodiment one, the reperformance test of gel plugging strength of the same race
Underground polymerization cross-linked gel is prepared some in clean beaker, sample by sampler 2 and be placed in the pore throat simulator 1 only with the first tube chamber 11 and the second tube chamber 12, wherein the diameter of pore throat simulator 1 first tube chamber 11 (being equivalent to hole) and the second tube chamber 12 (being equivalent to venturi) is respectively 4mm and 2mm.After connecting proving installation, open pump and inject water with the speed of 1ml/min, promote gel and migrate in pore throat simulator 1, monitoring pressure is dynamic.Maximal pressure force value is the breakthrough pressure of gel, characterizes gel to the plugging strength of pore throat, the elastic performance of slope of a curve reflection gel rubber material.Repeat four experiments under the same conditions, first time is distinguished as shown in figs. 5 a-5d to the Pressure behaviour that the 4th time records, measurement result shows, and this gel is about 235kPa to the plugging strength that pore-throat ratio (i.e. the ratio of pore diameter and throat diameter) is the hole of 2.The gel plugging strength carrying out four duplicate measurementss is all consistent with gel rubber material elastic performance, shows that the test result good stability of this method of testing, repeatability are strong.
Embodiment two, the analogy test of different gel
The gel of configuration three kinds of different performances, is placed on respectively by the gel of three kinds of different performances in the pore throat simulator 1 only with the first tube chamber 11 and the second tube chamber 12, carries out three experiments under the same conditions.Wherein the diameter of pore throat simulator 1 first tube chamber 11 and the second tube chamber 12 is respectively 4mm and 2mm.After connecting proving installation, open pump and inject water with the speed of 1ml/min, test its breakthrough pressure.The result of three experiments show plugging strength size that different gel records and itself character very identical, illustrate that this method of testing analogy is strong, the plugging characteristics from Weak Gels to a series of heterogeneity gel rubber system of strong gel can be measured, there is the advantage of quantitatively characterizing simultaneously.Three kinds of different gel rubber systems, character and plugging characteristics test results thereof are as shown in table 1:
Table 1: three kinds of gel rubber systems, character and plugging characteristics test results thereof
From the above mentioned, the utility model compares traditional gel plugging characteristics measurement mechanism, have that testing cost is cheap, the test duration is short, easy and simple to handle, accuracy is high, favorable repeatability, and can under same standard the gel rubber system of a series of different performance of quantitative measurment, test result analogy is strong.
The foregoing is only the schematic embodiment of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.
Claims (5)
1. Gel profile control agent device for measuring properties in a reservoir, it is characterized in that: described measurement mechanism comprises a pore throat simulator, this pore throat simulator at least comprises one section of first tube chamber and one section of second tube chamber, and described second tube chamber is coaxially arranged on the rear end of the first tube chamber and internal diameter is less than the first tube chamber; The junction of described first tube chamber and the second tube chamber forms the first reducing diameter part, and this first reducing diameter part has the excessive section of taper; Be provided with a sampler in the internal sleeve of described first tube chamber front end, this sampler is cylindrical shape, and the outer wall of sampler is fitted in the inwall of the first tube chamber; The front end of described first tube chamber is provided with an end sealing device, and this end sealing device is connected with a pump by pipeline, and described first tube chamber is communicated with this pump seal.
2. Gel profile control agent device for measuring properties in reservoir as claimed in claim 1, it is characterized in that: described pore throat simulator also comprises and is arranged on described second tube chamber multistage tube chamber below, described multistage tube chamber below is coaxially connected successively from front to back and is communicated, and form multiple reducing diameter part and wide diameter portion, at described reducing diameter part and wide diameter portion, all there is the excessive section of a taper.
3. Gel profile control agent device for measuring properties in reservoir as claimed in claim 2, is characterized in that: after described second tube chamber, be provided with the 3rd tube chamber and the 4th tube chamber successively; The internal diameter of described 3rd tube chamber is greater than the internal diameter of the second tube chamber, and the internal diameter of the 4th tube chamber is less than the internal diameter of the 3rd tube chamber, forms the second reducing diameter part in the junction of the 3rd tube chamber and the 4th tube chamber.
4. Gel profile control agent device for measuring properties in reservoir as claimed any one in claims 1 to 3, is characterized in that: described pore throat simulator is a right cylinder, and cylindrical inside is coaxially provided with described tube chamber; Described end sealing device comprises a seal sleeve and an end cover, and described seal sleeve thread seal is connected to the outside of pore throat simulator front end, and end cover thread seal is connected to the front end of seal sleeve; The central authorities of end cover are provided with through hole, and this through hole is communicated with the first tube chamber, and described pipeline and this through hole are tightly connected.
5. Gel profile control agent device for measuring properties in reservoir as claimed in claim 4, it is characterized in that: the front end of described sampler is provided with the annular flange flange of radially outward stretching out, rear end is annular cutting blade; This annular flange flange is resisted against the front end of pore throat simulator; Described end cover is provided with projection, and this projection is threaded with seal sleeve, and projection is pressed in the annular flange flange of sampler, and is provided with O-ring seal between projection and annular flange flange.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520133826.5U CN204405445U (en) | 2015-03-10 | 2015-03-10 | Gel profile control agent device for measuring properties in reservoir |
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| CN201520133826.5U CN204405445U (en) | 2015-03-10 | 2015-03-10 | Gel profile control agent device for measuring properties in reservoir |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677743A (en) * | 2015-03-10 | 2015-06-03 | 中国石油大学(北京) | Measurement method and device for properties of gel plugging agent in reservoirs |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677743A (en) * | 2015-03-10 | 2015-06-03 | 中国石油大学(北京) | Measurement method and device for properties of gel plugging agent in reservoirs |
| CN104677743B (en) * | 2015-03-10 | 2017-03-15 | 中国石油大学(北京) | Gel profile control agent performance measurement method and device in reservoir |
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Granted publication date: 20150617 Effective date of abandoning: 20170315 |