CN108196002A - Performance evaluation device and test method for temporary plugging steering fluid for fracture acidizing - Google Patents
Performance evaluation device and test method for temporary plugging steering fluid for fracture acidizing Download PDFInfo
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- CN108196002A CN108196002A CN201611122702.2A CN201611122702A CN108196002A CN 108196002 A CN108196002 A CN 108196002A CN 201611122702 A CN201611122702 A CN 201611122702A CN 108196002 A CN108196002 A CN 108196002A
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- 239000012530 fluid Substances 0.000 title claims abstract description 34
- 238000011156 evaluation Methods 0.000 title claims abstract description 26
- 238000010998 test method Methods 0.000 title abstract description 6
- 230000000977 initiatory effect Effects 0.000 claims abstract description 92
- 238000002347 injection Methods 0.000 claims abstract description 75
- 239000007924 injection Substances 0.000 claims abstract description 75
- 239000011435 rock Substances 0.000 claims abstract description 68
- 238000012545 processing Methods 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 239000012267 brine Substances 0.000 claims description 21
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 21
- 238000000465 moulding Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 12
- 230000004323 axial length Effects 0.000 claims description 10
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000011056 performance test Methods 0.000 claims description 3
- 235000011164 potassium chloride Nutrition 0.000 claims 1
- 239000001103 potassium chloride Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000012224 working solution Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- Life Sciences & Earth Sciences (AREA)
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- Food Science & Technology (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a performance evaluation device and a test method of a temporary plugging steering fluid for fracture acidizing. The device includes: the system comprises an injection unit, at least one crack initiation unit, a heating unit and a data processing and evaluating system; the crack initiation unit comprises a rock core with a hole, an annular pressing rubber sleeve for wrapping the rock core, a holder for holding the rock core and the annular pressing rubber sleeve, a first pressure sensor for detecting the inlet end of the crack initiation unit and a second pressure sensor for detecting the internal pressure of the holder, or a differential pressure sensor for detecting the crack initiation unit; and the data processing and evaluating system is used for acquiring data of the injection unit and the crack initiation unit, analyzing and processing the data and evaluating the performance of the temporary blocking steering fluid. In the whole testing process, the rock core is naturally cracked, the ring pressure on the rock core is kept unchanged, and the ring pressure is closer to the real cracking state of the natural rock in the stratum, so that the evaluation result of the temporary plugging diversion fluid is more real and reliable.
Description
Technical field
The present invention relates to oil gas field reservoir reconstruction field, more particularly to a kind of fracture acidizing is with temporary stall to liquid performance evaluation
Device and its test method.
Background technology
Before exploitation of oil-gas field, most of oil/gas well needs progress reservoir reconstruction that could obtain commercial hydrocarbon flow.
During to reservoir reconstruction, first, fracture acidizing working solution is injected into construction well, in the effect of fluid behaviour
Under, high permeability reservoir can be preferentially transformed in working solution, inject temporary stall later to liquid, make it into high permeability reservoir to its into
Row blocks, and follow-up work liquid is made to cannot be introduced by plugged zone, then inject working solution into oil well, low-permeability reservoir is changed
It makes.
Different turns to plugging effect difference of the liquid to reservoir.Before to reservoir reconstruction, in order to realize temporary stall to liquid
The good plugging action to reservoir needs to evaluate temporary stall to the performance of liquid.
At present, to evaluation of the temporary stall to fluidity energy, it is limited to evaluate the sealing characteristics of its fracture, and take thing more
Seam is first manually split to rock core or rock beam, then the rock core rived or rock beam according to prototype reactor are stacked and carry out evaluation examination in clamper
It tests, this seam mode of splitting can not completely close up the seam rived again, cause experimental error big, be risen naturally it is even more impossible to simulation rock
Crack true form after splitting seriously affects the accuracy to the evaluation result of liquid to temporary stall.
Invention content
The present invention provides a kind of fracture acidizing with temporary stall to liquid device for evaluating performance and its test method, existing to solve
Have in technology and manually to split seam and cannot truly react the crack true form after rock nature crack initiation, so as to cause to temporary stall to
The problem of evaluation result of liquid is inaccurate.Technical solution is as follows：
On the one hand, the present invention provides a kind of fracture acidizing with temporary stall to liquid device for evaluating performance, including：
Injection unit, at least one fracture initiation unit, heating unit and data processing and evaluation system；
The injection unit is used to inject liquid to fracture initiation unit；
The fracture initiation unit includes, rock core with hole, for wrapping up the ring moulding set of the rock core, for clamping
The clamper of the rock core and ring moulding set, for detecting the first pressure of the arrival end of fracture initiation unit sensing
The second pressure sensor of device and the clamper internal pressure or the pressure difference sensing for detecting the fracture initiation unit
Device；
The heating unit is used to heat the injection unit and the fracture initiation unit；
The data processing and evaluation system are used to acquiring the data of the injection unit and the fracture initiation unit simultaneously
It analyzes it processing and temporary stall is evaluated to the performance of liquid.
Preferably, it is provided in the hole for the steel pipe in hole described in sealing；The axial length in hole is the axis of the rock core
To the 1/3-1/2 of length.
It is highly preferred that the axial length of the rock core is 7-20cm, a diameter of 2.5-5cm；A diameter of 5- in the hole
6.35mm。
It is highly preferred that the axial length of the rock core is 13-17cm, a diameter of 3.8-5cm.
Preferably, the number of the fracture initiation unit is two or more, and each fracture initiation unit is connected in parallel.
Specifically, the injection unit includes：Water tank, the injection pump being connect with the water outlet of the water tank, with institute
State two the first fluid reservoirs and the second fluid reservoir in parallel of the water outlet connection of injection pump；Connect with the water outlet of the water tank
The ring pressure injection pump connect；First fluid reservoir and second fluid reservoir be both provided with the first chamber that is separated by piston and
The second chamber connected with the injection pump；Second pressure sensor is arranged on the port of export of the ring pressure injection pump and the folder
On the connecting line of holder.
Specifically, the data processing and evaluation system include：It is corresponding with the fracture initiation unit for collect from
The collection device of the liquid of the fracture initiation unit outflow；For the balance metering device weighed to the collection device；With
Analyzing and processing is carried out in the data to the injection unit and the fracture initiation unit and the temporary stall is evaluated to liquid
Processing terminal.
On the other hand, the present invention provides a kind of fracture acidizing with temporary stall to liquid performance test methods, including following step
Suddenly：
1), the injection unit and the fracture initiation unit are heated to preset temperature by the heating unit；
2), the injection unit is noted between the clamper of above-mentioned fracture initiation unit described in any one and ring moulding set
Enter water, form ring means of press seals；
3), the injection unit injects water or brine into hole, builds the pressure to rock core crack initiation, continues to be injected into water or brine exists
The flow speed stability in crack after crack initiation；
4), the injection unit injects temporary stall into the hole to liquid, injects water or the brine later and is sealing to it
Flow speed stability in the crack of rock core after stifled；
5), the data processing and evaluation system acquire the data of the injection unit and the fracture initiation unit and right
Data are analyzed and processed and temporary stall are evaluated to the performance of liquid.
Specifically, the pressure of the injection pump is 0-105MPa, and injection flow is 0-107mL/min.
Preferably, the brine is the Klorvess Liquid that mass fraction is 3%.
Specifically, the heating temperature of the heating unit is 0-177 DEG C, and heating rate is 4-8 DEG C/min.
The advantageous effect of technical solution provided in an embodiment of the present invention is：Injection unit is first to the folder of fracture initiation unit
Water is injected between holder and ring moulding set, forms ring means of press seals, then water or brine are injected into the hole of rock core, is built the pressure to rock core certainly
Right crack initiation measures the percolation ability in crack after crack initiation, is then injected into temporary stall to be measured and the crack of natural crack initiation is sealed to liquid
Stifled, data processing and the data of evaluation system acquisition injection unit and fracture initiation unit simultaneously analyze and process data and right
Temporary stall is evaluated to the performance of liquid.It has suffered in test process, rock core nature crack initiation, and the ring pressure of rock core is kept not
Become, the true crack initiation state of natural rock closer in stratum, so as to more true and reliable to the evaluation result of temporary stall to liquid.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is fracture acidizing signal of the temporary stall to liquid device for evaluating performance shown in an exemplary embodiment of the invention
Figure；
Reference numeral in figure represents respectively：
1st, injection unit；101st, water tank；1011st, first chamber；1012nd, second chamber；102nd, injection pump；103rd, first
Fluid reservoir；1031st, the first chamber of the first fluid reservoir；1032nd, the second chamber of the first fluid reservoir；1033rd, first fluid reservoir
Piston；104th, the second fluid reservoir；1041st, the first chamber of the second fluid reservoir；1042nd, the second chamber of the second fluid reservoir；1043、
The piston of second fluid reservoir；105th, ring pressure injection pump；2nd, fracture initiation unit；201st, rock core；2011st, hole；202nd, pressure difference sensing
Device；203rd, clamper；204th, first pressure sensor；205th, second pressure sensor；3rd, heating unit；4th, it data processing and comments
Valency system；401st, collection device；402nd, balance metering device；5th, valve；6th, check-valves.
Specific embodiment
To make technical scheme of the present invention and advantage clearer, embodiment of the present invention is made below in conjunction with attached drawing into
One step it is described in detail.
In one aspect of the invention, as shown in Figure 1, can be commented to fluidity with temporary stall the present invention provides a kind of fracture acidizing
Valency device.The fracture acidizing with temporary stall to liquid device for evaluating performance, including：
Injection unit 1, at least one fracture initiation unit 2, heating unit 3 and data processing and evaluation system 4；
The injection unit 1 is used to inject liquid to fracture initiation unit 2；
The fracture initiation unit 2 includes, and has the rock core 201 in hole 2011, for wrapping up the ring moulding of the rock core 201
Set, for clamping the clamper 203 of the rock core 201 and ring moulding set, for detecting entering for the fracture initiation unit 2
The second pressure sensor 205 (ring pressure sensor) of 203 internal pressure of first pressure sensor 204 and the clamper at mouth end
Or the differential pressure pickup 202 for detecting the fracture initiation unit 2；
The heating unit 3 is used to heat the injection unit 1 and the fracture initiation unit 2；
The data processing and evaluation system 4 are used to acquire the data of the injection unit 1 and the fracture initiation unit 2
And it is analyzed and processed and temporary stall is evaluated to the performance of liquid.Its middle ring moulding set is not shown in Fig. 1.
When in use, injection unit injects water between the clamper of fracture initiation unit and ring moulding set first, is formed
Ring means of press seals, then water or brine are injected into the hole of rock core, it builds the pressure to rock core nature crack initiation, measures the seepage flow energy in crack after crack initiation
Power is then injected into temporary stall to be measured and the crack of natural crack initiation is blocked to liquid, data processing and evaluation system acquisition injection
The data of unit and fracture initiation unit simultaneously analyze and process data and temporary stall are evaluated to the performance of liquid.It is surveying
It tries in overall process, rock core nature crack initiation, and the ring pressure of rock core is remained unchanged, the true of natural rock rises closer in stratum
State is split, so as to more true and reliable to the evaluation result of temporary stall to liquid.
The composition of fracture crack initiation unit 2 is described in detail below.
In practical operation, since the measurement accuracy of differential pressure pickup is higher than the measurement accuracy of pressure sensor, and pressure difference
The range of sensor is less than pressure sensor, therefore, as shown in Figure 1, use can be installed simultaneously on the pipeline of fracture initiation unit 2
In the 203 internal pressure (rock of first pressure sensor 204 and the clamper for the arrival end for detecting the fracture initiation unit 2
The ring pressure of the heart) second pressure sensor 205 and differential pressure pickup 202 for detecting the fracture initiation unit 2.
As shown in Figure 1, the arrival end in fracture initiation unit 2 is provided with valve for being turned on and off fracture initiation unit
Door 5.
In order to make the not pressure release when building the pressure crack initiation of rock core 201, it is provided in the hole 2011 for hole 2011 described in sealing
Steel pipe (not shown in figure 1), between steel pipe and hole wall using high strength epoxy resin seal.
It will be appreciated by persons skilled in the art that rock core is the needs according to geological work or engineering, rock core ring is used
Shape drill bit and other coring tools, the cylindric rock sample taken out out of hole.
Theoretically, rock core is bigger, and correspondingly, Kong Yue great is closer to the true crack initiation state of formation rock.
In practical operation, the axial length in hole 2011 is the 1/3-1/2 of the axial length of the rock core 201.
Specifically, the axial length of the rock core 201 is 7-20cm, a diameter of 2.5-5cm, it is preferable that the axis of rock core 201
It is 13-17cm, a diameter of 3.8-5cm to length；A diameter of 5-6.35mm in the hole.
In a kind of specific embodiment of fracture initiation unit 2, the number of the fracture initiation unit 2 for two with
On, each fracture initiation unit 2 is connected in parallel, and the crack initiation that builds the pressure to different rock cores is realized, so as to test temporary stall to liquid
The plugging action in the different cracks that the crack initiation that builds the pressure to different rocks generates.It can certainly be according to actual conditions, by being arranged on
The switch of the valve 5 of the arrival end of fracture initiation unit 2 realizes that exclusive use or two or more units are used in parallel, reaches
To the temporary stall of simulation to liquid to the sealing characteristics of the rock of different reservoir.
It describes in detail below to the composition of injection unit 1.
As shown in Figure 1, the injection unit 1 includes：Water tank 101, the note being connect with the water outlet of the water tank 101
Enter pump 102,2 connect with the water outlet of the injection pump 102 the first fluid reservoir 103 and the second fluid reservoir 104 in parallel；With
The ring pressure injection pump 105 of the water outlet connection of the water tank 101；First fluid reservoir 103 and second fluid reservoir 104
It is both provided with the first chamber 1031 and 1041 separated by piston 1033 and 1041 and connected with the injection pump 102 second
Chamber 1032 and 1042；Second pressure sensor 205 (ring pressure sensor) be arranged on the port of export of ring pressure injection pump 105 with
On the connecting line of the clamper 203.
In practical applications, the first chamber 1031 of the first fluid reservoir can contain water or brine；The of first fluid reservoir
Two chambers 1032 contain water；The first chamber 1041 of second fluid reservoir contains temporary stall to liquid, the second chamber of the second fluid reservoir
1042 contain water.Water in water tank 101 is continually injected into second chamber 1032 and 1042 by injection pump 102, promotes to live
Plug 1033 and 1043 is promoted to first chamber 1031 and 1041 so that liquid (water or the salt that first chamber 1031 and 1041 contains
Water, temporary stall is to liquid) it is injected into fracture initiation unit 2.
In addition, in practical applications, valve 5 is respectively arranged in the input end of second chamber 1032 and 1042.First
The port of export of chamber 1031 and 1041 is respectively arranged with valve 5.
The water in water tank 101 or brine are injected between clamper and ring moulding set by ring pressure injection pump 105 first
It forms ring briquetting and wraps up in rock core, then inject water to fracture initiation unit 2 from the first chamber 1031 of the first fluid reservoir or brine is formed
Building the pressure makes rock core crack initiation, continues to be injected into flow speed stability, then from the first chamber 1041 of the second fluid reservoir to seam crack initiation unit 2
It injects temporary stall to be blocked to liquid fracture, the first chamber 1031 of last first fluid reservoir is injected to fracture initiation unit 2
Water or brine are to flow speed stability, to test sealing characteristics of the temporary stall to liquid.
In practical applications, it is set respectively on water tank 101 and the connecting line of injection pump 102 and ring pressure injection pump 105
Valve controls draining.In addition, it will be appreciated by persons skilled in the art that injection pump 102 and ring pressure injection pump 105 can be distinguished
It is connected from different water tanks.
It describes in detail below to the composition of heating unit 3.
Heating unit 3 is mainly made of baking oven, the first fluid reservoir 103 and the second fluid reservoir 104 of injection unit 1 and
Fracture initiation unit 2, which is placed in baking oven, to be heated.
It describes in detail below to the composition of data processing and evaluation system 4.
Data processing and evaluation system 4 include：It is corresponding with the fracture initiation unit 2 to be used to collect from the crack
Split the collection device 401 of the liquid of the outflow of unit 2；For the balance metering device 402 weighed to the collection device 401；With
Analyzing and processing is carried out in the data to the injection unit 1 and the fracture initiation unit 2 and the temporary stall is commented to liquid
The processing terminal (not shown in figure 1) of valency.
The check-valves 6 for preventing liquid from flowing backwards is provided in the arrival end of collection device 401.
Liquid (Ru Shui, the salt that a set of collection device 401 and balance metering device 402 flow out a fracture initiation unit 2
Water, temporary stall are to liquid) it weighs, so as to calculate flow and flow rate of the liquid in the crack of rock core.The data obtained pass
It transports in processing terminal, the numerical value of combination pressure sensor or differential pressure pickup, temporary stall is commented to the sealing characteristics of liquid
Valency.
In another aspect of the present invention, wrapped the present invention provides a kind of fracture acidizing with temporary stall to liquid performance test methods
Include following steps：
1), the injection unit 1 and the fracture initiation unit 2 are heated to preset temperature by the heating unit 3；
2) water, is injected between the clamper 203 of any one above-mentioned fracture initiation unit 2 and ring moulding set, forms ring pressure
Sealing,；
3), the injection unit 1 injects water or brine into hole 2011, builds the pressure to rock core crack initiation, continue to be injected into water or
Flow speed stability in crack of the brine after crack initiation；
4), the injection unit 1 injects temporary stall into the hole 2011 to liquid, inject later water or the brine to its
Flow speed stability in the crack of rock core 201 after closure；
5), the data processing and evaluation system 4 acquire the data of the injection unit 1 and the fracture initiation unit 2
And data are analyzed and processed and temporary stall is evaluated to the performance of liquid.
The preset temperature that heating unit 3 heats the injection unit 1 and the fracture initiation unit 2 can be according to practical work
Condition determines that preset temperature is typically not greater than 177 DEG C.
In practical applications, the heating temperature of the heating unit 3 is 0-177 DEG C, and heating rate is 4-8 DEG C/min.
It can be 0.1-1mL/min that injection unit 1, which injects water or the discharge capacity of brine into hole 2011,.
In addition, in practical applications, the pressure of the injection pump 102 is 0-105MPa, it is preferable that 5-60MPa；Injection stream
It measures as 0-107mL/min, it is preferable that 0.5-20mL/min.Injection flow described herein refers to that (water or brine temporarily block up liquid
Turn to liquid) before and after the rock core crack initiation in flow.
Further more, during the test, keep the pressure (injection pressure) for being more than core entry end to the ring pressure of rock core so that
Water or brine in crack can only be flowed out from the port of export of rock core, it is impossible to be flowed out between rock core and ring moulding set, be ensured test
As a result accuracy.
Brine used in the present invention can be Klorvess Liquid, and preferably mass fraction is 3% Klorvess Liquid.Phase
For water, Klorvess Liquid can prevent the mass expansions such as the clay in rock, and crack influence is even blocked to temporary so as to reduce
Stall is to the test result of liquid.
For the crack that same rock core generates, after crack both ends pressure difference is steady, that is, keep pressure difference constant, adopt
The liquid weight or flow collected is smaller, and the sealing characteristics of the temporary stall to liquid is better；After the flow velocity of liquid is steady, that is, protect
It is constant to hold flow velocity, pressure difference is bigger, and the sealing characteristics of the temporary stall to liquid is better.
From above-described embodiment it is found that fracture acidizing provided by the invention with temporary stall to liquid device for evaluating performance and its test
Method, the true crack initiation state of natural rock closer in stratum, so as to more true and reliable to the evaluation result of temporary stall to liquid.
Moreover, moreover it is possible to while simulate sealing characteristics of the temporary stall to liquid to the rock of different reservoir.
The above is for only for ease of it will be understood by those skilled in the art that technical scheme of the present invention, not limiting
The present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection domain of invention.
Claims (11)
1. a kind of fracture acidizing is with temporary stall to liquid device for evaluating performance, which is characterized in that including：
Injection unit (1), at least one fracture initiation unit (2), heating unit (3) and data processing and evaluation system (4)；
The injection unit (1) for fracture initiation unit (2) inject liquid；
The fracture initiation unit (2) includes, and has the rock core (201) of hole (2011), for wrapping up the ring of the rock core (201)
Moulding set, for clamping the clamper (203) of the rock core (201) and ring moulding set, for detecting the fracture initiation
The first pressure sensor (204) of the arrival end of unit (2) and the second pressure sensor of the clamper (203) internal pressure
(205) or the differential pressure pickup (202) for detecting the fracture initiation unit (2)；
The heating unit (3) is for heating the injection unit (1) and the fracture initiation unit (2)；
The data processing and evaluation system (4) are for acquiring the number of the injection unit (1) and the fracture initiation unit (2)
According to and analyze it processing and temporary stall is evaluated to the performance of liquid.
2. the apparatus according to claim 1, which is characterized in that be provided in the hole (2011) for hole described in sealing
(2011) steel pipe；1/3-1/2 of the axial length in hole (2011) for the axial length of the rock core (201).
3. the apparatus of claim 2, which is characterized in that the axial length of the rock core (201) be 7-20cm, diameter
For 2.5-5cm；A diameter of 5-6.35mm in the hole.
4. device according to claim 3, which is characterized in that the axial length of the rock core (201) is 13-17cm, directly
Diameter is 3.8-5cm.
5. the apparatus according to claim 1, which is characterized in that the number of the fracture initiation unit (2) is two or more,
Each fracture initiation unit (2) is connected in parallel.
6. the apparatus according to claim 1, which is characterized in that the injection unit (1) includes：Water tank (101), with institute
The injection pump (102) of the water outlet connection of water tank (101) is stated, two connect with the water outlet of the injection pump (102) are simultaneously
The first fluid reservoir (103) of connection and the second fluid reservoir (104)；The ring pressure injection being connect with the water outlet of the water tank (101) enters
It pumps (105)；First fluid reservoir (103) and second fluid reservoir (104) are both provided with through piston (1033；1043) divide
Every first chamber (1031；1041) second chamber (1032 and with the injection pump (102) connected；1042)；Second pressure
Sensor (205) is arranged on the port of export of the ring pressure injection pump (105) and the connecting line of the clamper (203).
7. the apparatus according to claim 1, which is characterized in that the data processing and evaluation system (4) include：With it is described
The corresponding collection device (401) of liquid flowed out for collection from the fracture initiation unit (2) of fracture initiation unit (2)；
For the balance metering device (402) weighed to the collection device (401)；For to the injection unit (1) and described splitting
The processing terminal that the data of seam crack initiation unit (2) carry out analyzing and processing and the temporary stall is evaluated to liquid.
8. a kind of fracture acidizing is with temporary stall to liquid performance test methods, which is characterized in that includes the following steps：
1), the injection unit (1) and the fracture initiation unit (2) are heated to preset temperature by the heating unit (3)；
2), the injection unit (1) is to the clamper (203) of fracture initiation unit (2) described in any one of claim 1 to 5
Water is injected between being covered with ring moulding, forms ring means of press seals；
3), the injection unit (1) builds the pressure to rock core crack initiation to injection water or brine in hole (2011), continue to be injected into water or
Flow speed stability in crack of the brine after crack initiation；
4), the injection unit (1) is to temporary stall of injection in the hole (2011) to liquid, inject later water or the brine to its
Flow speed stability in the crack of rock core (201) after closure；
5), the data processing and evaluation system (4) acquire the number of the injection unit (1) and the fracture initiation unit (2)
It is analyzed and processed according to and to data and temporary stall is evaluated to the performance of liquid.
9. according to the method described in claim 8, it is characterized in that, the pressure of the injection unit (1) be 0-105MPa, injection
Flow is 0-107mL/min.
10. according to the method described in claim 8, it is characterized in that, the potassium chloride that it is 3% that the brine, which is mass fraction, is molten
Liquid.
11. according to the method described in claim 8, it is characterized in that, the heating temperature of the heating unit (3) be 0-177 DEG C,
Heating rate is 4-8 DEG C/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611122702.2A CN108196002B (en) | 2016-12-08 | 2016-12-08 | Performance evaluation device and test method for temporary plugging steering fluid for fracture acidizing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611122702.2A CN108196002B (en) | 2016-12-08 | 2016-12-08 | Performance evaluation device and test method for temporary plugging steering fluid for fracture acidizing |
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| CN108196002B CN108196002B (en) | 2021-06-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111256961A (en) * | 2018-11-14 | 2020-06-09 | 中国石油天然气股份有限公司 | Device and method for evaluating performance of temporary plugging ball |
| CN111829730A (en) * | 2019-04-23 | 2020-10-27 | 中国石油化工股份有限公司 | Temporary plugging effect evaluation device and method |
| CN113092338A (en) * | 2021-04-09 | 2021-07-09 | 中国石油天然气股份有限公司 | Device and method for evaluating continuous plugging performance of diverting acid |
| CN113189278A (en) * | 2021-05-13 | 2021-07-30 | 中石化西南石油工程有限公司 | Temporary plugging agent evaluation device for multiple composite condition seams, holes and rock samples |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592213A (en) * | 2013-11-25 | 2014-02-19 | 中国石油化工集团公司 | Diversion acidizing experimental apparatus suitable for multiple permeability max-min ratios and evaluation method |
| CN104060976A (en) * | 2014-07-01 | 2014-09-24 | 中国石油大学(北京) | Method for physically simulating sectional hydrofracture of different well types of perforated well shafts |
| CN105158122A (en) * | 2015-08-13 | 2015-12-16 | 中国石油大学(北京) | Device and method for testing temporary blocking performance of temporary blocking and diverting agent for acid fracturing |
-
2016
- 2016-12-08 CN CN201611122702.2A patent/CN108196002B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592213A (en) * | 2013-11-25 | 2014-02-19 | 中国石油化工集团公司 | Diversion acidizing experimental apparatus suitable for multiple permeability max-min ratios and evaluation method |
| CN104060976A (en) * | 2014-07-01 | 2014-09-24 | 中国石油大学(北京) | Method for physically simulating sectional hydrofracture of different well types of perforated well shafts |
| CN105158122A (en) * | 2015-08-13 | 2015-12-16 | 中国石油大学(北京) | Device and method for testing temporary blocking performance of temporary blocking and diverting agent for acid fracturing |
Non-Patent Citations (5)
| Title |
|---|
| 付美龙 等: "转向重复压裂高效暂堵剂性能评价", 《西安石油大学学报( 自然科学版)》 * |
| 侯 冰 等: "致密灰岩储层压裂裂缝扩展形态试验研究", 《岩土工程学报》 * |
| 张雪萍: "转向酸分流酸化模拟研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 詹宁宁: "古潜山储层长井段自转向酸液的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 陈勉 等: "大尺寸真三轴水力压裂模拟与分析", 《岩石力学与工程学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111256961A (en) * | 2018-11-14 | 2020-06-09 | 中国石油天然气股份有限公司 | Device and method for evaluating performance of temporary plugging ball |
| CN111829730A (en) * | 2019-04-23 | 2020-10-27 | 中国石油化工股份有限公司 | Temporary plugging effect evaluation device and method |
| CN113092338A (en) * | 2021-04-09 | 2021-07-09 | 中国石油天然气股份有限公司 | Device and method for evaluating continuous plugging performance of diverting acid |
| CN113189278A (en) * | 2021-05-13 | 2021-07-30 | 中石化西南石油工程有限公司 | Temporary plugging agent evaluation device for multiple composite condition seams, holes and rock samples |
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