CN206740588U - A kind of carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus - Google Patents
A kind of carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus Download PDFInfo
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- CN206740588U CN206740588U CN201720585260.9U CN201720585260U CN206740588U CN 206740588 U CN206740588 U CN 206740588U CN 201720585260 U CN201720585260 U CN 201720585260U CN 206740588 U CN206740588 U CN 206740588U
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Abstract
The utility model provides a kind of carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus, including high pressure visable stirring container, and connected carbon dioxide pressure charging system, put forward stick injected system, proppant add-on system, temperature control system and data collecting system.Each part connects the device for constituting evaluation carbon dioxide dry method fracturing fluid solid-carrying performance by pipeline with valve.This evaluating apparatus provided by the utility model is used for the solid-carrying performance for evaluating different phase (liquid is overcritical) carbon dioxide dry method fracturing fluid, realize visualization, it is simple in construction, measurement accuracy is higher, operating method is easy to implement, mixing speed, temperature, pressure can be adjusted, it can realize in the range of larger pressure and temperature from liquid to the quantitative measurment of supercritical carbon dioxide fracturing fluid solid-carrying performance, reliable solid-carrying performance data are provided for FRACTURING DESIGN and field test.
Description
Technical field
The utility model belongs to unconventionaloil pool storey increase design technical field, and in particular to a kind of carbon dioxide dry method pressure break
Liquid solid-carrying performance evaluating apparatus.
Background technology
Carbon dioxide dry method fracturing technique is as effective exploitation is hypotonic, the hand of Oil in Super-low Permeability and the untraditional reservoir such as densification
Section, because it is a kind of anhydrous fracturing technique, compared with water-based fracturing technology, has saved great lot of water resources, has not almost had to reservoir
There are injury, obvious effect of increasing production.Duo Jia oil fields have been carried out in a large amount of associated chambers to carbon dioxide dry method fracturing technique and ground in recent years
Study carefully, and repeatedly live Pilot trial carried out in Soviet Union's Sulige gas field, it is found that carbon dioxide dry method fracturing technique has some deficiencies,
Mainly carbon dioxide thickening, which takes sand technology and filtrate reducing technology, needs improvement of being tackled key problems.From liquid and supercritical carbon dioxide
Physicochemical property set about, the thickening of the carbon dioxide pressure break liquid under the conditions of indoor development visualization takes sand, filtrate reducing and rheological characteristic
Energy evaluation experimental, it is significant.Indoor existing carbon dioxide dry method/foam fracturing fluid henchnmrk test device at present
Carry out above related experiment there are problems that, it is difficult to obtain effective experimental data.
Utility model content
The purpose of this utility model is overcome existing for existing carbon dioxide dry method fracturing fluid property evaluation experimental device
Difficult visual rationing evaluates carbon dioxide dry method fracturing fluid solid-carrying performance in the range of larger temperature and pressure, and is difficult to obtain effectively
The problem of experimental data.
Therefore, the utility model provides a kind of carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus, including dioxy
Change carbon pressure charging system, carry stick injected system, proppant add-on system, high pressure visable stirring container, temperature control system and
Data collecting system；
Proppant add-on system, temperature control system and the data collecting system connect with high pressure visable stirring container
Connect, proppant add-on system is arranged on the top of high pressure visable stirring container, and carbon dioxide pressure charging system is injected with stick is carried
System is connected to high pressure visable stirring container by six-way valve, and three valve ports of residue of six-way valve are connected to by pipeline respectively
Vavuum pump, blow-down pipe and pressure gauge.
The carbon dioxide pressure charging system includes passing sequentially through the carbon dioxide cylinder, cooler, buffering of pipeline connection
Container and booster pump, booster pump are connected to six-way valve by pipeline.
The stick injected system that carries includes carrying stick storage tank, high-pressure metering pump, carries stick storage tank and is connected to by pipeline
The entrance of high-pressure metering pump, the outlet of high-pressure metering pump are connected to six-way valve by pipeline.
The proppant add-on system includes proppant container, and proppant container bottom leads to high pressure visable stirring container
Pipeline connection is crossed, proppant addition valve, proppant container upper portion side wall and high pressure visable stirring container are concatenated on the pipeline
Connected by back pressure pipeline, back pressure pipeline valve is concatenated on back pressure pipeline.
The high pressure visable stirring container includes cylinder, and volume markings line is carved with the barrel of cylinder and is offered visual
Watch window, the bottom of cylinder is connected to be vented purge valve by pipeline, and is installed with magnetic stirring apparatus, cylinder in the bottom of cylinder
Pipeloop is also equipped with the barrel of body.
The temperature control system includes circulation bath and the temperature control of gradient of temperature is controlled on circulation bath
Device processed, circulation bath connect with pipeloop.
The data collecting system include data detection instrument, high-speed camera, mixing speed sensor, temperature sensor and
Pressure sensor, mixing speed sensor, one end of temperature sensor and pressure sensor electrically connect with data detection instrument respectively,
Port of the other end respectively on the cylinder with visualizing stirring container is connected, high-speed camera alignment visible observation window.
The temperature control system controls -20 DEG C of operating temperature range~120 DEG C, and the maximum (top) speed of magnetic stirring apparatus is
3000 revs/min, the shooting speed of high-speed camera is more than 2000 frames/second.
A kind of solid-carrying performance evaluation method of carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus, including following step
Suddenly：
Step 1, high pressure visable stirring container and pipeline vacuumize
Log-on data acquisition system, vavuum pump is opened, remaining valve is closed, connects to high pressure visable stirring container and with it
Logical pipeline is vacuumized, and when the pressure on data detection instrument is shown as -0.1MPa, completes to vacuumize；
Step 2, liquefied carbon dioxide
Carbon dioxide cylinder is opened, the carbon dioxide of carbon dioxide cylinder is after subcooler cools down, into buffering
Container, liquid carbon dioxide being obtained, be pressurized through booster pump, the valve that pressure gauge is connected in six-way valve is shown in a fully open operation, remaining
Valve is in closed mode, opens the valve being connected in six-way valve with high pressure visable stirring container, the liquid two after supercharging
Carbonoxide enters in high pressure visable stirring container；
Step 3, injection carry stick
Stick loading will be proposed and carry stick storage tank, the valve that pressure gauge is connected in six-way valve is shown in a fully open operation, remaining valve
Closed mode is in, opens high-pressure metering pump, the valve being connected in six-way valve with high pressure visable stirring container is opened, carries viscous
In agent injection high pressure visable stirring container；
Step 4, experimental temperature, pressure and the mixing speed of high pressure visable stirring container are set
Turn-on data acquisition system, temperature control system is opened, ON cycle bath, is by the temperature setting for circulating bath
- 20 DEG C of experimental temperature~120 DEG C, temperature control is carried out to high pressure visable stirring container, temperature-controlled precision is ± 1.0 DEG C, is opened
Magnetic stirring apparatus, setting mixing speed are less than 3000 revs/min, start to stir, pressure 2MPa~30MPa according to needed for experiment,
The pressure in high pressure visable stirring container is adjusted by temperature controller and booster pump；
Step 5, add proppant
Proppant is loaded into proppant container, back pressure pipeline valve and proppant addition valve is opened successively, stores up proppant
Tank is consistent with high pressure visable stirring container pressure, and proppant is fallen into high pressure visable stirring container in stirring by gravity
In the carbon dioxide pressure break liquid of state, stir to proppant after being uniformly dispersed in fracturing fluid, stop stirring, utilize high-speed camera
Sinking speed of the proppant in fracturing fluid is observed and measured to machine；
Step 6, measurement and the solid-carrying performance for calculating carbon dioxide dry method fracturing fluid
High-speed camera follows the trail of sedimentation time and the vertical sedimentation distance of a certain proppant, meter through visible observation window
The average settlement speed θ of proppant is calculated, this average settlement speed θ is the solid-carrying performance for representing carbon dioxide dry method fracturing fluid, θ's
Calculation formula is as follows：
,
In formula, L is a certain proppant vertical sedimentation distance, unit mm；T is the sedimentation time, unit s；θ is support
The sinking speed of agent, unit mm/s；
Step 7, change the experimental temperature and pressure of step 4, the phase and carbon dioxide pressure break fluidity energy of carbon dioxide
Change therewith, obtain and change proppant sinking speed in carbon dioxide dry method fracturing fluid from liquid to supercriticality, record
For solid-carrying performance data.
The beneficial effects of the utility model：This carbon dioxide dry method fracturing fluid solid-carrying performance provided by the utility model is commented
Valency device and method, including carbon dioxide pressure charging system, carry stick injected system, proppant add-on system, high pressure visable and stir
Container, temperature control system and data collecting system are mixed, carbon dioxide pressure charging system is used to liquid carbon dioxide being pumped into high pressure
Visualize in stirring container, put forward stick injected system and visualized for being precisely controlled to put forward stick addition and be pumped into high pressure
In container, proppant add-on system is used to add proppant, and high pressure visable stirring container is used to observe carbon dioxide dry method pressure
Split liquid and take sand state, temperature control system is used for the experimental temperature for controlling high pressure visable stirring container；Data collecting system is used
In the heavy of the mixing speed in monitoring high pressure visable stirring container, flow, temperature and pressure and a certain object support agent of tracking
Time and vertical sedimentation distance drop, and each part is connected by pipeline with valve constitutes evaluation carbon dioxide dry method fracturing fluid
The device of solid-carrying performance.This evaluating apparatus provided by the utility model is used to evaluate two under different phase (liquid is overcritical)
The solid-carrying performance of carbonoxide dry method fracturing fluid, visualization is realized, simple in construction, measurement accuracy is higher, and operating method is easy to real
Apply, mixing speed, temperature, pressure can be adjusted, and can be realized in the range of larger pressure and temperature from liquid to supercriticality
The quantitative measurment of carbon dioxide pressure break liquid solid-carrying performance, reliable solid-carrying performance data are provided for FRACTURING DESIGN and field test.
The utility model is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus.
Description of reference numerals：1st, carbon dioxide pressure charging system；2nd, stick injected system is put forward；3rd, proppant add-on system；4、
High pressure visable stirring container；5th, temperature control system；6th, data collecting system；7th, six-way valve；8th, vavuum pump；9th, blow-down pipe
Line；10th, pressure gauge；
1.1st, carbon dioxide cylinder；1.2nd, cooler；1.3rd, buffer container；1.4 booster pump；
2.1st, stick storage tank is carried；2.2nd, high-pressure metering pump；
3.1st, proppant container；3.2nd, proppant addition valve；3.3rd, back pressure pipeline；3.4th, back pressure pipeline valve；
4.1st, cylinder；4.2nd, visible observation window；4.3rd, magnetic stirring apparatus；4.4, emptying purge valve；
5.1st, bath is circulated；5.2nd, temperature controller；
6.1st, data detection instrument；6.2nd, high-speed camera；6.3rd, mixing speed sensor；6.4th, temperature sensor；6.5、
Pressure sensor.
Embodiment
Embodiment 1：
In order to overcome difficult visual rationing evaluation existing for existing carbon dioxide dry method fracturing fluid property evaluation experimental device
Carbon dioxide dry method fracturing fluid solid-carrying performance in the range of larger temperature and pressure, and be difficult to obtain asking for effective experimental data
Topic, present embodiments provides a kind of carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus as shown in Figure 1, including titanium dioxide
Carbon pressure charging system 1, put forward stick injected system 2, proppant add-on system 3, high pressure visable stirring container 4, temperature control system 5
With data collecting system 6；
The proppant add-on system 3, temperature control system 5 and data collecting system 6 stir with high pressure visableization to be held
Device 4 connects, and proppant add-on system 3 is arranged on the top of high pressure visable stirring container 4, carbon dioxide pressure charging system 1 and carries
Stick injected system 2 is connected to high pressure visable stirring container 4 by six-way valve 7, and three valve ports of residue of six-way valve 7 lead to respectively
Cross pipeline and be connected to vavuum pump 8, blow-down pipe 9 and pressure gauge 10.
Carbon dioxide pressure charging system 1 is used to the liquid carbon dioxide of pressure needed for experiment being pumped into high pressure visableization stirring appearance
Device 4, put forward stick injected system 2 and be used to be precisely controlled to put forward stick addition and be pumped into high pressure visualized container 4, support
Agent add-on system 3 is used to add fracturing propping agents, and high pressure visable stirring container 4 is quiet for observing carbon dioxide dry method fracturing fluid
Sand state is taken only or under stirring, temperature control system 5 is used for the experimental temperature for controlling high pressure visable stirring container, number
Mixing speed, temperature and pressure and a certain target branch of tracking being used to monitor in high pressure visable stirring container according to acquisition system 6
Support sedimentation time and the vertical sedimentation distance of agent.Each part is connected with valve by pipeline and constitutes evaluation dry carbon dioxide
The device of method fracturing fluid solid-carrying performance.
Embodiment 2：
On the basis of embodiment 1, the carbon dioxide pressure charging system 1 includes passing sequentially through the carbon dioxide of pipeline connection
Gas bomb 1.1, cooler 1.2, buffer container 1.3 and booster pump 1.4, booster pump 1.4 are connected to six-way valve 7 by pipeline.Two
After carbon dioxide in carbonoxide gas bomb 1.1 is cooled down by cooler 1.2, into buffer container 1.3, liquid titanium dioxide is obtained
Carbon, enter high pressure visable stirring container 4 after the supercharging of booster pump 1.4.
Embodiment 3：
On the basis of embodiment 1, the stick injected system 2 that carries includes carrying stick storage tank 2.1, high-pressure metering pump 2.2,
The entrance that stick storage tank 2.1 is connected to high-pressure metering pump 2.2 by pipeline is carried, the outlet of high-pressure metering pump 2.2 is connected by pipeline
It is connected to six-way valve 7.The stick that carries carried in stick storage tank 2.1 enters high pressure visableization stirring appearance after the metering of high-pressure metering pump 2.2
Device 4.
Embodiment 4：
On the basis of embodiment 1, the proppant add-on system 3 includes proppant container 3.1, proppant container 3.1
Bottom is connected with high pressure visable stirring container 4 by pipeline, and proppant addition valve 3.2, proppant storage are concatenated on the pipeline
The upper portion side wall of tank 3.1 is connected with high pressure visable stirring container 4 by back pressure pipeline 3.3, and back pressure is concatenated on back pressure pipeline 3.3
Pipeline valve 3.4.
Back pressure pipeline valve 3.4 and proppant addition valve 3.2 are opened, proppant container 3.1 and high pressure visable can be made
The pressure of stirring container 4 is consistent.
Embodiment 5：
On the basis of embodiment 1, the high pressure visable stirring container 4 includes cylinder 4.1, on the barrel of cylinder 4.1
It is carved with volume markings line and offers visible observation window 4.2, the bottom of cylinder 4.1 is connected to be vented purge valve by pipeline
4.4, and magnetic stirring apparatus 4.3 is installed in the bottom of cylinder 4.1, it is also equipped with pipeloop on the barrel of cylinder 4.1.
Visible observation window 4.2 can intuitively observe the stirring condition of liquid in high pressure visable stirring container 4, emptying
Purge valve 4.4 can be vented after experiment terminates and clean evaluating apparatus, and magnetic stirring apparatus 4.3 is used to stir in cylinder 4.1
Liquid carbon dioxide, proppant, stick is carried, become fracturing fluid.
Embodiment 6：
On the basis of embodiment 5, the temperature control system 5 includes circulation bath 5.1 and installed in circulation bath
The temperature controller 5.2 of gradient of temperature is controlled on 5.1, circulation bath 5.1 connects with pipeloop.Circulate bath 5.1 and circulation
Pipeline connection carries out heating water bath to high pressure visable stirring container 4, and temperature controller 5.2 is used to adjust in circulation bath 5.1
Temperature.
Embodiment 7：
On the basis of embodiment 5, the data collecting system 6 includes data detection instrument 6.1, high-speed camera 6.2, stirred
Mix velocity sensor 6.3, temperature sensor 6.4 and pressure sensor 6.5, mixing speed sensor 6.3, temperature sensor 6.4
Electrically connected respectively with data detection instrument 6.1 with one end of pressure sensor 6.5, other end is respectively with visualizing stirring container 4
Cylinder 4.1 on port connection, high-speed camera 6.2 is directed at visible observation window 4.2.
Opened up on cylinder 4.1 for connecting with mixing speed sensor 6.3, temperature sensor 6.4 and pressure sensor 6.5
The port connect, mixing speed sensor 6.3, temperature sensor 6.4 and pressure sensor 6.5 are used to detect mixed in cylinder 4.1
Mixing speed, the temperature and pressure of liquid are closed, and these data are transferred to data detection instrument 6.1, the collection note of data detection instrument 6.1
These data are recorded, high-speed camera 6.2 follows the trail of sedimentation time and the vertical sedimentation distance of a certain object support agent, and above-mentioned data are adopted
It is used to calculate average settlement speed after having collected, and then reliable solid-carrying performance data is provided for FRACTURING DESIGN and field test.
Embodiment 8：
On the basis of embodiment 6 or 7, by many experiments, following optimum data, the temperature control system 5 are drawn
- 20 DEG C of operating temperature range~120 DEG C are controlled, the maximum (top) speed of magnetic stirring apparatus 4.3 is 3000 revs/min, high-speed camera
6.2 shooting speed is more than 2000 frames/second.
Embodiment 9：
A kind of solid-carrying performance evaluation method of carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus, including following step
Suddenly：
Step 1, high pressure visable stirring container and pipeline vacuumize
Log-on data acquisition system 6, open vavuum pump 8, close remaining valve, to high pressure visable stirring container 4 and with
Its pipeline connected is vacuumized, and when the pressure on data detection instrument 6.1 is shown as -0.1MPa, completes to vacuumize；
Step 2, liquefied carbon dioxide
Open carbon dioxide cylinder 1.1, the carbon dioxide of carbon dioxide cylinder 1.1 after the cooling of subcooler 1.2,
Into buffer container 1.3, liquid carbon dioxide is obtained, is pressurized through booster pump 1.4, the valve of pressure gauge 10 is connected in six-way valve 7
It is shown in a fully open operation, remaining valve is in closed mode, opens what is be connected in six-way valve 7 with high pressure visable stirring container 4
Valve, the liquid carbon dioxide after supercharging enter in high pressure visable stirring container 4；
Step 3, injection carry stick
Stick loading will be proposed and carry stick storage tank 2.1, the valve that pressure gauge 10 is connected in six-way valve 7 is shown in a fully open operation, its
Remaining valve is in closed mode, opens high-pressure metering pump 2.2, opens and is connected in six-way valve 7 with high pressure visable stirring container 4
Valve, carry in stick injection high pressure visable stirring container 4；
Step 4, experimental temperature, pressure and the mixing speed of high pressure visable stirring container are set
Turn-on data acquisition system 6, temperature control system 5 is opened, ON cycle bath 5.1, the temperature of bath 5.1 will be circulated
Degree be arranged to -20 DEG C of experimental temperature~120 DEG C, to high pressure visable stirring container 4 carry out temperature control, temperature-controlled precision for ±
1.0 DEG C, magnetic stirring apparatus 4.3 is opened, setting mixing speed is less than 3000 revs/min, starts to stir, the pressure according to needed for experiment
2MPa~30MPa, the pressure in high pressure visable stirring container 4 is adjusted by temperature controller 5.2 and booster pump 1.4；
Step 5, add proppant
Proppant is loaded into proppant container 3.1, back pressure pipeline valve 3.4 and proppant addition valve 3.2 is opened successively, makes
Proppant container 3.1 is consistent with the pressure of high pressure visable stirring container 4, and proppant falls into high pressure visableization stirring by gravity to be held
In device 4 in the carbon dioxide pressure break liquid in stirring, stir to proppant after being uniformly dispersed in fracturing fluid, stop stirring
Mix, observe and measure sinking speed of the proppant in fracturing fluid using high-speed camera 6.2；
Step 6, measurement and the solid-carrying performance for calculating carbon dioxide dry method fracturing fluid
High-speed camera 6.2 follows the trail of sedimentation time and the vertical sedimentation of a certain proppant through visible observation window 4.2
Distance, calculates the average settlement speed θ of proppant, and the i.e. expression carbon dioxide dry method fracturing fluids of this average settlement speed θ take sand
Performance, θ calculation formula are as follows：
,
In formula, L is a certain proppant vertical sedimentation distance, unit mm；T is the sedimentation time, unit s；θ is support
The sinking speed of agent, unit mm/s；
Step 7, change the experimental temperature and pressure of step 4, the phase and carbon dioxide pressure break fluidity energy of carbon dioxide
Change therewith, obtain and change proppant sinking speed in carbon dioxide dry method fracturing fluid from liquid to supercriticality, record
For solid-carrying performance data, reliable solid-carrying performance data are provided for FRACTURING DESIGN and field test.
The carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus that the present embodiment provides realizes visualization, structure letter
Single, measurement accuracy is higher, and operating method is easy to implement, and mixing speed, temperature, pressure can be adjusted, and can realize larger pressure
With, from liquid to the quantitative measurment of supercritical carbon dioxide fracturing fluid solid-carrying performance, be FRACTURING DESIGN in temperature range and existing
Field experiment provides reliable solid-carrying performance data.
Exemplified as above is only for example, not forming to the scope of protection of the utility model to of the present utility model
Limitation, it is every to be belonged to the same or analogous design of the utility model within the scope of protection of the utility model.The present embodiment
The part and the well-known components and common structure or conventional means of the structure category industry not described in detail, are not chatted one by one here
State.
Claims (8)
- A kind of 1. carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus, it is characterised in that：Including carbon dioxide pressure charging system （1）, put forward stick injected system（2）, proppant add-on system（3）, high pressure visable stirring container（4）, temperature control system（5） And data collecting system（6）；The proppant add-on system（3）, temperature control system（5）And data collecting system（6）Stirred with high pressure visableization Container（4）Connection, proppant add-on system（3）Installed in high pressure visable stirring container（4）Top, carbon dioxide supercharging system System（1）With put forward stick injected system（2）Pass through six-way valve（7）It is connected to high pressure visable stirring container（4）, six-way valve（7）'s Remaining three valve ports are connected to vavuum pump by pipeline respectively（8）, blow-down pipe（9）And pressure gauge（10）.
- 2. carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus as claimed in claim 1, it is characterised in that：The dioxy Change carbon pressure charging system（1）Carbon dioxide cylinder including passing sequentially through pipeline connection（1.1）, cooler（1.2）, buffer container （1.3）And booster pump（1.4）, booster pump（1.4）Six-way valve is connected to by pipeline（7）.
- 3. carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus as claimed in claim 1, it is characterised in that：It is described carry it is viscous Agent injected system（2）Including carrying stick storage tank（2.1）, high-pressure metering pump（2.2）, carry stick storage tank（2.1）Connected by pipeline To high-pressure metering pump（2.2）Entrance, high-pressure metering pump（2.2）Outlet six-way valve is connected to by pipeline（7）.
- 4. carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus as claimed in claim 1, it is characterised in that：The support Agent add-on system（3）Including proppant container（3.1）, proppant container（3.1）Bottom and high pressure visable stirring container（4）It is logical Pipeline connection is crossed, proppant addition valve is concatenated on the pipeline（3.2）, proppant container（3.1）Upper portion side wall and high pressure visable Change stirring container（4）Pass through back pressure pipeline（3.3）Connection, back pressure pipeline（3.3）On concatenate back pressure pipeline valve（3.4）.
- 5. carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus as claimed in claim 1, it is characterised in that：The high pressure Visualize stirring container（4）Including cylinder（4.1）, cylinder（4.1）Barrel on be carved with volume markings line and offer visual sight Examine window（4.2）, cylinder（4.1）Bottom by pipeline be connected to be vented purge valve（4.4）, and in cylinder（4.1）Bottom Magnetic stirring apparatus is installed（4.3）, cylinder（4.1）Barrel on be also equipped with pipeloop.
- 6. carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus as claimed in claim 5, it is characterised in that：The temperature Control system（5）Including circulating bath（5.1）And installed in circulation bath（5.1）The temperature controller of upper control gradient of temperature （5.2）, circulate bath（5.1）Connected with pipeloop.
- 7. carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus as claimed in claim 5, it is characterised in that：The data Acquisition system（6）Including data detection instrument（6.1）, high-speed camera（6.2）, mixing speed sensor（6.3）, temperature sensor （6.4）And pressure sensor（6.5）, mixing speed sensor（6.3）, temperature sensor（6.4）And pressure sensor（6.5）'s One end respectively with data detection instrument（6.1）Electrical connection, other end is respectively with visualizing stirring container（4）Cylinder（4.1）On Port connection, high-speed camera（6.2）It is directed at visible observation window（4.2）.
- 8. carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus as claimed in claims 6 or 7, it is characterised in that：It is described Temperature control system（5）Control -20 DEG C of operating temperature range~120 DEG C, magnetic stirring apparatus（4.3）Maximum (top) speed be 3000 Rev/min, high-speed camera（6.2）Shooting speed be more than 2000 frames/second.
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| CN107014721A (en) * | 2017-05-24 | 2017-08-04 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of carbon dioxide dry method fracturing fluid solid-carrying performance evaluating apparatus and method |
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| CN108361554A (en) * | 2018-04-02 | 2018-08-03 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of nitrogen supercharging device and its application method |
| CN109507065A (en) * | 2018-12-26 | 2019-03-22 | 山东大学 | A kind of supercritical carbon dioxide device for measuring viscosity and method dissolved with tackifier |
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Effective date of registration: 20201027 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: 710016 Shaanxi city of Xi'an province Weiyang District four road Fengcheng Changqing Technology Building Patentee before: CNPC CHUANQING DRILLING ENGINEERING COMPANY LIMITED ENGINEERING TECHNOLOGY Research Institute |