CN103364310B - Strong gel strength measuring apparatus and measuring method - Google Patents

Strong gel strength measuring apparatus and measuring method Download PDF

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Publication number
CN103364310B
CN103364310B CN201210085749.1A CN201210085749A CN103364310B CN 103364310 B CN103364310 B CN 103364310B CN 201210085749 A CN201210085749 A CN 201210085749A CN 103364310 B CN103364310 B CN 103364310B
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China
Prior art keywords
strong gel
measuring
measurement
lifting
container
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CN201210085749.1A
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Chinese (zh)
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CN103364310A (en
Inventor
程时清
朱岚
湛杰
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中国石油大学(北京)
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Abstract

The invention discloses a strong gel strength measuring apparatus and a measuring method. The measuring apparatus comprises a bracket, a lifting fixing device and a first measuring device, wherein the bracket supports the lifting fixing device; the first measuring device is used for measuring the flow ability of strong gel under extrusion; the strength of strong gel is represented by the measured flow ability; the first measuring device comprises a disc type first measuring head and a first container; the first container comprises a container main body and a horizontal pipe of which the bottom is communicated with the container main body, and scale values are marked on the horizontal pipe; and the measuring apparatus also comprises a rod-shaped second measuring head and measures the fracture pressure or stressed deformation ability of the surface of the strong gel by use of an electronic balance. The measuring apparatus disclosed by the invention can be realized by measuring the fracture (hole-forming) pressure on the surface of the strong gel, measuring the flow ability in a horizontal graduated tube when the strong gel is extruded or measuring the stressed deformation ability of the strong gel; and the measuring apparatus has the advantages of simple structure, convenience in operation, flexible test means, accurate positioning and the like.

Description

Strong gel strength measuring instrument and measuring method
Technical field
The present invention relates to a kind of ratemeter, especially a kind of measuring instrument for measuring strong gel strength and measurement side Method.
Background technology
In the water plugging and profile controlling measure in oil field, the sealing characteristics of strong gel occupies critical role.Behind strong gel injection stratum, Its intensity will be affected by factors, thus ground simulating is essential, and the Strength Changes carrying out same strong gel are divided Between analysis and different strong gel, the comparative analysiss of intensity are the important means evaluating strong gel sealing characteristics.
The instrument and equipment that strong gel strength measurement can be carried out mainly has flow graph, Texture instrument, but these equipment are huge, price The factors such as costliness are difficult to be used at any time, especially carrying and using very inconvenient at measure scene.At present, strong to strong gel The measuring method of degree is generally using range estimation code method or falling ball method.Range estimation code evaluation methodology be exchanged by Sydansk et al. stifled The intensity (Gel Strength Codes abbreviation GSC) of agent gel is estimated, according to gel institute's table when test tube is disposed vertically The different conditions revealing are determining gel strength.Falling ball method is that the gel generating in test tube is selected with the steel ball of different size, Steel ball is fallen naturally from specified location, observes steel ball and rest on position in gel to determine gel strength.Both measures Method is all to determine the intensity of gel it is impossible to the expression of quantitation from the apparent phenomenon, and measurement process has very big subjectivity, Determination to gel strength can vary with each individual, and measurement result lacks precision.Active force is applied to by Chinese patent CN2781354Y The intensity of frozen glue on frozen glue, is gone out by measuring the numerical measuring of active force.This measuring method can represent the intensity of frozen glue with numerical value, But metering system is single, there is no criterion to the applying degree of active force.
Content of the invention
Present invention solves the technical problem that being:A kind of strong gel strength measuring instrument and measuring method are provided, with improve or gram Take the problem that above-mentioned existing equipment exists.
The technical solution of the present invention is:A kind of strong gel strength measuring instrument, described measuring instrument includes support, lifting admittedly Determine device and the first measurement apparatus, described support supports described lifting and fixing device, and described first measurement apparatus are used for measuring Fluid ability when strong gel is squeezed, and the intensity of described strong gel characterized using measured fluid ability.
Strong gel strength measuring instrument as above, wherein, described first measurement apparatus include the first measurement head and first Container, described first measurement head is wafer-type measurement head, including the bottom pressure contact portion of shaft-like top connecting portion and disc-shaped, institute State top connecting portion to be removedly fixed on described lifting and fixing device, described bottom pressure contact portion is used for and described first container Interior strong gel crimping;Described first container includes container body and its bottom is attached thereto logical horizontal tube, and described horizontal tube On have scale value.
Strong gel strength measuring instrument as above, wherein, described measuring instrument also includes the second measurement apparatus, this second survey Amount device includes the second measurement head, second container and electronic balance, and described second measurement head is in shaft-like, and its upper end has connection Portion, to be removedly fixedly connected with described lifting and fixing device, described second container is used for containing strong gel, described electronics sky Equal the fracture pressure for measuring strong gel surface or stress deformation ability.
Strong gel strength measuring instrument as above, wherein, described support includes base and montant, the fixing dress of described lifting Put including cross bar and elevating lever, the rotatable fixing screws of described cross bar are fixed on the montant of described support, described cross bar Fix with elevating lever lifting storehouse, adjust the position of described elevating lever by the knob lifting outside storehouse;Described elevating lever bottom With joint, for being removedly connected with the described first or second measurement head upper end.
Strong gel strength measuring instrument as above, wherein, described elevating lever is provided with scale value.
The present invention also proposes a kind of strong gel strength measuring method, and wherein, methods described includes measuring strong gel and is squeezed When the intensity level to characterize strong gel for the fluid ability.
Strong gel strength measuring method as above is wherein, when active force is applied on strong gel, strong by measurement The bottom horizontal flow sheet distance of gel symbolizes the intensity level of strong gel.
Strong gel strength measuring method as above, wherein, methods described utilizes fluid ability measurement apparatus Lai real Existing, described fluid ability measurement apparatus include measurement head and pressure measuring cup, described measurement head include shaft-like top connecting portion and Discoid bottom pressure contact portion, described top connecting portion is removedly fixed on lifting and fixing device, described bottom pressure contact portion For crimping with the strong gel in described pressure measuring cup;Described pressure measuring cup includes container body and its bottom be attached thereto logical Horizontal tube, described horizontal tube has scale value;Methods described includes:
Strong gel is loaded in pressure measuring cup;
Adjust measurement apparatus, make measurement head just be contacted with strong gel surface, record the scale value of now elevating lever;
Adjust lifting knob, move down measurement head, when elevating lever reaches predetermined graduated value, stop moving down elevating lever, And read the scale value that strong gel reaches in pressure measuring cup horizontal tube.
Strong gel strength measuring method as above, wherein, described measuring method also includes measuring strong gel surface Fracture pressure, to characterize gel strength with this.
Strong gel strength measuring method as above, wherein, methods described also includes:Toughness is preferably coagulated by force Glue, by measuring the ability of strong gel stress deformation, to characterize its intensity.
First measurement apparatus of the present invention are used for measuring fluid ability when strong gel is squeezed, and it is strong to characterize this with this The intensity of gel.One preferred embodiment of the present invention is mainly by support, elevating lever, measurement head, pressure measuring cup, electronic balance group Become, the cross bar on support is fixed on the montant of support with rotatable fixing screws;Elevating lever top indicates scale value, cross bar with Elevating lever lifting storehouse is fixed, and adjusts the position of elevating lever by lifting knob and can read its position quarter at the top in lifting storehouse Angle value;Elevating lever bottom carries joint, can be threadeded with the top of measurement head;Electronic balance can be positioned over support On base, pressure measuring cup is positioned on electronic balance or is placed directly within the base of support.
Compared with prior art, the present invention has advantages below:
1. structure is simple and convenient to operate.
2. the metering system of this instrument has larger motility, can carry out the combination of different assemblies as needed.
3. elevating lever carries scale value, can relatively be accurately positioned the position of measurement head decline.
4. utilize measuring instrument and the measuring method of the present invention, strong gel can be carried out and surveyed by fluid ability during different pressures Amount, the pressure value measurement under identical mobility status and the fracture pressure value measurement of strong gel surface etc..
Brief description
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of a specific embodiment of strong gel strength measuring instrument of the present invention.
The X agent consumption that Fig. 2 is obtained by the embodiment 2 of the strong gel strength measuring instrument using the present invention is strong to certain colloid system The impact schematic diagram of degree.
The heat time heating time that Fig. 3 is obtained by the embodiment 2 of the strong gel strength measuring instrument using the present invention is strong to certain colloid The schematic diagram of the impact of degree.
Specific embodiment
The present invention proposes a kind of strong gel strength measuring instrument, and described measuring instrument includes support, lifting and fixing device and the One measurement apparatus, described support supports described lifting and fixing device, and described first measurement apparatus are used for measuring strong gel and are squeezed When fluid ability, and the intensity of described strong gel represented using measured fluid ability.
It is preferred that the first measurement apparatus include the first measurement head and the first container, described first measurement head includes shaft-like Top connecting portion and discoid bottom pressure contact portion, described top connecting portion is removedly fixed on described lifting and fixing device On, described bottom pressure contact portion is used for crimping with gel strong in described first container;Described first container include container body and its Bottom is attached thereto logical horizontal tube, and has scale value on described horizontal tube.
Cooperation drawings and the specific embodiments are described in further detail to the specific embodiment of the present invention below.
As shown in figure 1, the invention mainly comprises support 11, elevating lever 4, measurement head 8A, 8B, pressure measuring cup 9A, 9B and electricity Sub- balance 10 forms.Wherein measurement head 8A is rod-type measurement head, can be used for making gel surface stress rupture (pore-forming);Measurement head 8B For wafer-type measurement head, can be used for implementing extruding to gel.Pressure measuring cup 9A is cylindrical transparent containers;Pressure measuring cup 9B is Transparent vessel, its bottom cylinder carries a horizontal scale pipe, and strong gel can flow in pipe when pressurized.Horizontal stroke on support 11 Bar 2 is fixed on the montant 1 of support 11 with rotatable fixing screws 3;Elevating lever 4 top indicates scale value, cross bar 2 and elevating lever 4 available lifting storehouses 5 are fixing, adjust the position of elevating lever 4 by lifting knob 6, and can read its position at the top in lifting storehouse 5 Scale value;Elevating lever 5 bottom carries joint 7, can be threadeded with measurement head 8A or 8B top;Electronic balance 10 is used for surveying Measure fracture pressure or the stress deformation ability of strong gel surface, it can be positioned on bracket base (in figure does not indicate), amount of pressure Cup 9A or 9B is positioned on electronic balance 10 or is placed directly within bracket base, and the composition structure of this measuring instrument is shown in Fig. 1.
For each concrete assembly in the present embodiment, those skilled in the art can need existing according to specific completely There is the assembly selecting counter structure in technology, no longer repeat one by one herein.
Using the above-mentioned measuring instrument of the present invention, the measurement of strong Relative Gel Strength can be realized by various ways, below Illustrate, but those skilled in the art will be seen that, following specific embodiments are done only for the purposes of understanding the present invention Go out, be not intended to limit the present invention, that is, those skilled in the art can be substituted using other structures of the prior art Partial structurtes therein, here no longer illustrates one by one.
Embodiment 1:
Strong gel is loaded in pressure measuring cup 9B.
Measurement head 8B is connected with elevating lever 4, pressure measuring cup 9B is placed on the base of support 11, then adjusting bracket 11 Position, adjust cross bar 2 arrive appropriate location, reuse lifting knob 6 adjust elevating lever 4 position, so that measurement head 8B is just connect Touch the scale value recording now elevating lever in strong gel surface.The measurement of strong gel strength can be squeezed by measuring strong gel When fluid ability in horizontal scale pipe characterizing.
Adjust lifting knob 6, move down measurement head 8B, when elevating lever 4 reaches predetermined graduated value, stop moving down lifting Bar 4, and read the scale value that strong gel reaches in pressure measuring cup 9B horizontal tube.Because strong gel has certain intensity, when The intensity of strong gel can be characterized by measuring flow distance in horizontal tube for the strong gel when active force applies thereon.
Embodiment 2:
According to the requirement of plugging agent formula, in pressure measuring cup 9A, generate strong gel.
Measurement head 8A is connected with elevating lever 4, pressure measuring cup 9A is placed on electronic balance 10, then adjusting bracket 11 with The position of electronic balance 10, adjusts cross bar 2 and arrives appropriate location, reuse the position that lifting knob 6 adjusts elevating lever 4, make measurement Head 8A is just contacted with strong gel surface, and balance reading is zeroed.The measurement of strong gel strength can be by measuring strong gel surface Rupture (pore-forming) pressure characterizing.
Adjust lifting knob 6, move down measurement head 8A, read electricity immediately when rupture (pore-forming) in strong gel surface Data on sub- balance 10, and stop moving down measurement head 8A.Adjustment measurement head 8A and the contact point of strong gel surface, repeat Measurement 4 times.Calculate the meansigma methodss of 5 measurements, thus drawing the intensity level of strong gel.
Embodiment 3:
Measurement head 8A is connected with elevating lever 4, pressure measuring cup 9A is placed on electronic balance 10, then adjusting bracket 11 with The position of electronic balance 10, adjusts cross bar 2 and arrives appropriate location, reuse the position that lifting knob 6 adjusts elevating lever 4, make measurement Head 8A is just contacted with strong gel surface, and balance reading is zeroed.The preferably strong gel for toughness, the measurement of its intensity can be led to Cross and measure the ability of strong gel stress deformation to characterize.
Adjust lifting knob 6, move down measurement head 8A, when elevating lever 4 reaches predetermined graduated value, stop moving down lifting Bar 4, and read the data on electronic balance 10.Adjustment measurement head 8A and the contact point of strong gel surface, repeat measurement 4 times. Calculate the meansigma methodss of 5 measurements, thus drawing the intensity level of strong gel.
Although those skilled in the art can be fully understood by the measuring instrument of the present invention and corresponding according to foregoing description Measuring method, but for the ease of the corresponding technical scheme of more thorough explanation, taking embodiment 1 as a example illustrate to utilize below and be somebody's turn to do Measuring instrument measures the measuring method of certain strong gel rubber system intensity, it should be noted that the present invention does not protect specifically strong gel System, therefore, below illustrates not limiting concrete gel and its composition, those skilled in the art can fit completely as needed Work as change, results needed is obtained with the measuring instrument using the present invention.
Test case one:In certain strong gel (system) R&D process, experiment screening X agent (that is, stabilizer) concentration.
Consumption in view of X agent may affect the indexs such as the gelation time of colloid, gel strength, thus in certain limit The concentration of interior regulation X agent, the change of periodic observation plant gum.
The mass ratio of selection A agent and B agent (A agent is also known as host, and B agent is also known as reinforcing agent) is 1: 3 system, both total matter Amount concentration is 2%, and being separately added into X agent mass concentration is 0.2%, 0.3%, 0.5%, 1%, 2% and 5%, and solution is distillation Water.
After the equal plastic of colloid, started in the 10th day to measure the flowing journey in horizontal scale pipe when strong gel is squeezed Degree.The each decline scale of predetermined elevating lever is 5, flow distance in horizontal tube for colloid when record reaches this default scale, X The impact to certain colloid system intensity for the agent consumption refers to Fig. 2.
As seen from Figure 2, when X agent consumption is decreased to 0.2%, system intensity decreases;When its concentration is by 0.3% When increasing to 5%, system intensity changes very little.Simultaneously although increasing X agent consumption in the production process of colloid can make its plastic speed Degree is slightly accelerated, but excessive X agent can lead to colloid to become fragile, toughness reduces.Thus, in the substantially impregnable situation of intensity Under, X agent consumption should not be improved, selective system X agent concentration is 0.3%.
It should be noted that in this embodiment, due to the junction of horizontal tube and pressure measuring cup is set to 0 value, along water The scales -1, -2, -3 ... such as flat pipe direction, due to from 0 more away from represent colloid fluid ability is better, intensity is also weaker, because This, in this test case, intensity coordinate is negative value, with convenient to operate and understanding.
Test case two:In certain colloid preparation technology, the impact to its intensity for the temperature.
By certain colloid (can be identical with previous test case) heat respectively in 100 DEG C of water-baths 30min, 60min, 90min and 120min, heat time heating time, the impact to certain gel strength was shown in Figure 3.
As seen from Figure 3, in 100 DEG C of water-baths, with the prolongation of heat time heating time, gel strength gradually strengthens.When plus The hot time be 90min about when, the intensity after product plastic reaches maximum;If continuing to rise high-temperature, its intensity starts on the contrary Decline.
In sum.The strong gel strength measuring instrument structure of the present invention is simple and convenient to operate, and can reduce artificial mistake Difference, raising degree of accuracy, are capable of the accurate quantitative analysis of strong gel strength, make intensity data more using this measuring instrument and measurement method It is more reasonable that science, intensity compare.
Although the present invention is disclosed with specific embodiment, it is not limited to the present invention, the technology of any this area Personnel, the displacement of done equivalent assemblies on the premise of without departing from the spirit and scope of the present invention, or according to patent of the present invention Equivalent variations and modification that protection domain is made, all should still belong to the category that this patent is covered.

Claims (10)

1. a kind of strong gel strength measuring instrument is it is characterised in that described measuring instrument includes support, lifting and fixing device and first Measurement apparatus, described support supports described lifting and fixing device, and described first measurement apparatus are used for measuring strong gel when being squeezed Fluid ability, and the intensity of described strong gel characterized using measured fluid ability;
Described first measurement apparatus include the first measurement head and the first container, and described first measurement head is wafer-type measurement head, bag Include the bottom pressure contact portion of shaft-like top connecting portion and disc-shaped, it is solid that described top connecting portion is removedly fixed on described lifting Determine on device, described bottom pressure contact portion is used for crimping with gel strong in described first container;Described first container includes container master Body and be located at described container body bottom and the horizontal tube that is connected with described container body, and have scale on described horizontal tube Value.
2. as claimed in claim 1 strong gel strength measuring instrument it is characterised in that described measuring instrument also includes the second measurement dress Put, this second measurement apparatus includes the second measurement head, second container and electronic balance, described second measurement head is in shaft-like, thereon End has connecting portion, and to be removedly fixedly connected with described lifting and fixing device, described second container is used for containing strong gel, Described electronic balance is used for measuring fracture pressure or the stress deformation ability of strong gel surface.
3. as claimed in claim 1 strong gel strength measuring instrument it is characterised in that described support includes base and montant, institute State lifting and fixing device and include cross bar and elevating lever, described cross bar is fixed on the montant of described support with rotatable fixing screws On, described cross bar is fixed with elevating lever lifting storehouse, adjusts the position of described elevating lever by the knob lifting outside storehouse;Described Elevating lever bottom carries joint, for being removedly connected with described first measurement head upper end.
4. as claimed in claim 2 strong gel strength measuring instrument it is characterised in that described support includes base and montant, institute State lifting and fixing device and include cross bar and elevating lever, described cross bar is fixed on the montant of described support with rotatable fixing screws On, described cross bar is fixed with elevating lever lifting storehouse, adjusts the position of described elevating lever by the knob lifting outside storehouse;Described Elevating lever bottom carries joint, for being removedly connected with described second measurement head upper end.
5. the strong gel strength measuring instrument as described in claim 3 or 4 is it is characterised in that described elevating lever is marked with scale.
6. a kind of strong gel strength measuring method is it is characterised in that methods described is realized using fluid ability measurement apparatus The measurement of fluid ability when strong gel is squeezed, described fluid ability measurement apparatus include support, lifting and fixing device and First measurement apparatus, described support supports described lifting and fixing device;Described first measurement apparatus include the first measurement head and One container, described first measurement head includes shaft-like top connecting portion and discoid bottom pressure contact portion, described top connecting portion Removedly it is fixed on lifting and fixing device, described bottom pressure contact portion is used for crimping with the strong gel in described first container; Described first container is included container body and is located at described container body bottom and the horizontal tube being connected with described container body, There is scale value on described horizontal tube;Described support includes base and montant, and described lifting and fixing device includes cross bar and elevating lever, The rotatable fixing screws of described cross bar are fixed on the montant of described support, and described cross bar is solid with lifting storehouse with elevating lever Fixed, the position of described elevating lever is adjusted by the lifting knob lifting outside storehouse;Described elevating lever bottom carry joint, for Described first measurement head upper end removedly connects;
The fluid ability that methods described is included when being squeezed by the strong gel of measurement characterizes the intensity of strong gel.
7. as claimed in claim 6 strong gel strength measuring method it is characterised in that when active force is applied on strong gel When, the intensity of strong gel is symbolized by the bottom horizontal flow sheet distance measuring strong gel.
8. as claimed in claim 7 strong gel strength measuring method it is characterised in that methods described includes:
Strong gel is loaded in the first container;
Adjust measurement apparatus, make the first measurement head just be contacted with strong gel surface, record the scale value of now elevating lever;
Adjust lifting knob, move down the first measurement head, when elevating lever reaches predetermined graduated value, stop moving down elevating lever, And read the scale value that strong gel reaches in the horizontal tube of the first container.
9. as claimed in claim 6 strong gel strength measuring method it is characterised in that described measuring method also to include measurement strong The fracture pressure of gel surface, to characterize gel strength with this.
10. as claimed in claim 6 strong gel strength measuring method it is characterised in that methods described also includes:For toughness Preferably strong gel, by measuring the ability of strong gel stress deformation, to characterize its intensity.
CN201210085749.1A 2012-03-28 2012-03-28 Strong gel strength measuring apparatus and measuring method CN103364310B (en)

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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
CN104949902A (en) * 2015-06-15 2015-09-30 中国石油天然气股份有限公司 Detection device and method for testing gelling strength of plugging agent
CN106323731A (en) * 2016-08-29 2017-01-11 浙江上方生物科技有限公司 Gel strength detection method for kappa carrageenan
CN106501127B (en) * 2016-10-17 2019-04-12 大港油田集团有限责任公司 Profile control gel evaluation of dynamic method and device
CN108956377B (en) * 2018-05-08 2020-03-10 中国农业大学 Food rheological property detection method
CN108958306B (en) * 2018-05-08 2020-04-17 中国农业大学 Pneumatic generation for food rheological property detection and control method thereof

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