CN106404631A - Tight-oil fracture-network water-oil two-phase diversion test system and test method thereof - Google Patents
Tight-oil fracture-network water-oil two-phase diversion test system and test method thereof Download PDFInfo
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- CN106404631A CN106404631A CN201610907058.3A CN201610907058A CN106404631A CN 106404631 A CN106404631 A CN 106404631A CN 201610907058 A CN201610907058 A CN 201610907058A CN 106404631 A CN106404631 A CN 106404631A
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- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 238000010998 test method Methods 0.000 title claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000003921 oil Substances 0.000 claims abstract description 84
- 239000002245 particle Substances 0.000 claims abstract description 6
- 238000005303 weighing Methods 0.000 claims abstract description 6
- 238000002474 experimental method Methods 0.000 claims abstract description 5
- 239000004576 sand Substances 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 104
- 239000000741 silica gel Substances 0.000 claims description 102
- 229910002027 silica gel Inorganic materials 0.000 claims description 102
- 239000012071 phase Substances 0.000 claims description 57
- 239000012530 fluid Substances 0.000 claims description 28
- 239000010720 hydraulic oil Substances 0.000 claims description 28
- 230000008676 import Effects 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000008346 aqueous phase Substances 0.000 claims description 9
- 238000000280 densification Methods 0.000 claims description 9
- 230000035699 permeability Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052710 silicon Inorganic materials 0.000 abstract description 11
- 239000010703 silicon Substances 0.000 abstract description 11
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 208000010392 Bone Fractures Diseases 0.000 abstract 5
- 206010017076 Fracture Diseases 0.000 abstract 5
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 238000004088 simulation Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000004272 Eragrostis cilianensis Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000005514 two-phase flow 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
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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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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Abstract
The invention discloses a tight-oil fracture-network water-oil two-phase diversion test system which comprises a diversion chamber, a three-way valve oil-water separator, a weighing machine, a first high-pressure reaction kettle connected with a three-way valve through a first vale and a second high-pressure reaction kettle. The diversion chamber comprises a diversion chamber body, a main diversion silicone tube mounted in the cavity of the diversion chamber body and multiple secondary diversion silicon tubes perpendicularly arranged along the lengthwise direction of the main diversion silicon tube and communicated with the main diversion silicon tube, and the main diversion silicon tube is communicated with the inlet and the outlet of the diversion chamber body; the main diversion silicon tube and the secondary diversion tubes simulated a main fracture and a secondary fracture are placed in the diversion chamber body, propping agents are laid in the main diversion silicon tube and the secondary silicon tubes to form a fracture network according to paved-sand content and particle size of the propping agents required in experiment, and diversion simultaneously generated from oil and water after fracture of tight oil can be simulated and tested more truly. Meanwhile, the invention further discloses a test method adopting the test system.
Description
Technical field
The invention belongs to oil-gas field development technical field and in particular to a kind of densification oil pressure fracture network water-oil phase water conservancy diversion energy
Force test system, the invention still further relates to the method for testing using this test system.
Background technology
World's Demand of Oil ＆ Gas sustainable growth, unconventionaloil pool becomes the frontier of Global Oil exploration and development.With external etc.
Typical tight oil area compares, and China's fine and close oil formation condition ratio is advantageous, has larger Exploration Potential, and oil in place is 6440 ×
108Bucket, technologically recoverable reserves are 322 × 108Bucket (average recovery ratio is about 5%), (Zhang Junfeng is finished with the U.S. to be only second to Russia
Beach, Xu Hao, etc. fine and close exploration activity exploitation new development and reference [J] abroad. petroleum journal, 2015,36 (2)：127-
137.).Fine and close oil is found at present, wherein Ordos Basin prolongation group has been enter into industrialized production in existing 5 basins of China,
And define the extensive horizontal well volume fracturing renovation technique of one of key technology " all places liquid, thousand side's sand ", this technology
The support seam net being formed makes the well yield of fine and close oil obtain first-stage success, and (Du Jinhu, He Haiqing, Tao Yang, etc. the fine and close oil of China
Exploration progress and facing challenges [J]. Oil Exploration in China, 2014,19 (1)：1-9.).
Universal research method is according to People's Republic of China's oil and gas industry standard at present《SY/T 6302-2009
Fracturing propping agents filling bed short-term flow conductivity recommends method》Carry out test and obtain liquid phase flow conductivity data, to a certain degree
On fine and close oil pressure split with Construction Optimize-Design underlying parameter is provided, application is relatively broad.
But, supported dose of type of proppant flow conductivity and shape, particle diameter composition, sanding concentration, clossing pressure, rock
The many factors such as hardness, test condition, fracturing fluid property, flox condition, pressure-bearing time affect, if considering supporting crack multiple image
Ring factor Overlay, its flow conductivity declines 98% (SPE-100574-MS, 2006) than flow conductivity under atmospheric pressure state.Cause
Exploit after close oil pressure, support seam net to be main profit seepage channel, profit is same to be adopted long-term existence and affect flow conductivity, and above-mentioned
Industry standard is to the working specification not making general regulation for such situation.
Content of the invention
Present invention aim to for the deficiency of traditional diamond-making technique, providing a kind of densification oil pressure fracture network profit two
Phase flow conductivity test system and method for testing, can split profit with flow conductivity when producing by more real simulation test densification oil pressure
Size.
For achieving the above object, the fine and close oil pressure fracture network water-oil phase flow conductivity test system designed by the present invention,
The three-way valve that including diversion chamber, is connected with diversion chamber import, the oil water separator being connected with diversion chamber outlet and with shelve oil
The weighing machine of water separator, an autoclave being connected with a high pressure constant speed pump passes through a valve and three-way valve phase
Even, No. two autoclaves being connected with No. two high pressure constant speed pumps are connected with three-way valve by No. two valves, described diversion chamber
The major flow silica gel tube including diversion chamber's body, being arranged in body hollow chamber of diversion chamber and the length along major flow silica gel tube
The many water conservancy diversion silica gel tubes that direction is vertically arranged and is connected with major flow silica gel tube, major flow silica gel tube connection diversion chamber is originally
The inlet and outlet of body, the end of every water conservancy diversion silica gel tube is connected with the hollow side wall of diversion chamber's body；Also include and water conservancy diversion
No. three high pressure constant speed pumps that room body hollow chamber is connected, and set between described No. three high pressure constant speed pumps and described diversion chamber body
It is equipped with a pressure gauge.
Further, it is provided with the anti-drift net of proppant at the terminal position of described every water conservancy diversion silica gel tube.
Further, a part of water conservancy diversion silica gel tube in described many water conservancy diversion silica gel tubes is arranged on major flow silica gel tube
Side, remainder gradation water conservancy diversion silica gel tube is arranged on major flow silica gel tube opposite side, and the secondary water conservancy diversion of major flow silica gel tube both sides
Silica gel tube is arranged symmetrically.
Further, it is provided with back-pressure valve between the outlet of described diversion chamber and described oil water separator, described back-pressure valve
Import is connected with No. four high pressure constant speed pumps, and is provided with No. two pressure gauges between described back-pressure valve and described No. four high pressure constant speed pumps.
Further, be provided with No. three valves between described three-way valve and described diversion chamber, and described No. three valves with
It is provided with No. three pressure gauges between described diversion chamber body.
A kind of method of testing of densification oil pressure fracture network water-oil phase flow conductivity test system as described above, described survey
Method for testing comprises the steps：
1) according to the sanding concentration of requirement of experiment and the particle diameter of proppant toward major flow silica gel tube and Duo Gen water conservancy diversion silica gel
In pipe, laid proppant forms seam net；
2) hydraulic oil is passed through No. three high pressure constant speed pumps and inject in the hollow chamber of diversion chamber's bodies until full of in whole
Plenum chamber and hydraulic oil are atmospheric pressure state, read hydraulic oil volume V under record atmospheric pressure state by a pressure gauge0；And by height
Force feed phase fluid injects in an autoclave, and water under high pressure phase fluid injects in No. two autoclaves；
3) default clossing pressure p is set, starts No. three high pressure constant speed pumps and continue the injection into body hollow chamber of diversion chamber
Hydraulic oil, after being default clossing pressure p to a manometric pressure, stablizes the pressure in diversion chamber's body hollow cavity, and
Record rises to, by normal pressure, hydraulic oil volume V that No. three high pressure constant speed pumps of clossing pressure p process are injected1；
The volume change V that clossing pressure p hydraulic oil is led to due to pressure rise is risen to by normal pressure2=pC × [V0+V1(1+
Cp)], wherein, C is hydraulic oil coefficient of compressibility；
Major flow silica gel tube and the pressurized rear volume change V of Duo Gen water conservancy diversion silica gel tube3=V1-V2；
Due to being fully populated with proppant, major flow silicon in major flow silica gel tube and Duo Gen water conservancy diversion silica gel tube under atmospheric pressure state
A diameter of d of sebific duct0, the length of major flow silica gel tube is l0, the diameter of many time water conservancy diversion silica gel tubes is followed successively by d1～di, many
The length of secondary water conservancy diversion silica gel tube is followed successively by l1～li, the diameter according to major flow silica gel tube and Duo Gen water conservancy diversion silica gel tube and length,
Calculate equivalent initial seam dictyosome and amass VF0With initial seam net width w0, that is,Wherein n is one and dominates
Stream silica gel tube and the radical summation of many water conservancy diversion silica gel tubes；
And calculate the equivalent seam net width under clossing pressure p
4) open a valve, No. two valves and No. three valves, start a high pressure constant speed pump and No. two high pressure constant speed pumps,
The injection of a number high pressure constant speed pump of setting and No. two high pressure constant speed pumps, than λ, is driven in an autoclave with constant speed mode
Water under high pressure phase fluid in hydraulic oil phase fluid and No. two autoclaves is to diversion chamber's intrinsic seam net；
When the hydraulic oil phase fluid of diversion chamber's body import is equal with oil water separator oil phase rate of discharge, meanwhile, water conservancy diversion
When the water under high pressure phase fluid of room body import is equal with oil water separator aqueous phase rate of discharge, record inlet outlet pressure differential Δ p, oil phase
Fluid flow qoWith aqueous phase fluid flow qw, equivalent phase permeability is calculated using Darcy's law
Wherein, μ0For oil phase viscosity, μwFor aqueous phase viscosity；
5) change a high pressure constant speed pump and λ is compared in the injection of No. two high pressure constant speed pumpsi, repeat step 4), the different note of test
Enter to compare λiUnder equivalent phase permeability koi、kwi, thus calculating water-oil phase flow conductivity koiw、kwiw.
Further, described step 5) be completed after, change different sanding concentration, repeat step 4) and step 5),
The different sanding concentration of test, the different flow conductivity injecting than lower water-oil phase.
The present invention compared with prior art, has advantages below：Major flow silica gel tube by simulation major fracture and time crack
This is internal to put into diversion chamber with secondary water conservancy diversion silica gel tube, and then the particle diameter of the sanding concentration according to requirement of experiment and proppant is toward major flow
In silica gel tube and Duo Gen water conservancy diversion silica gel tube, laid proppant forms seam net, can oil after more real simulation test densification oil pressure
Water is with the size of flow conductivity when producing；And mozzle adopts silica gel tube, high clossing pressure can be born so that simulation test more
Truly.
Brief description
Fig. 1 is present invention densification oil pressure fracture network water-oil phase flow conductivity test system structure schematic diagram；
Fig. 2 is Tu1Zhong diversion chamber structural representation；
Fig. 3 is major flow silica gel tube and time water conservancy diversion silica gel tubular construction enlarged diagram in Fig. 2.
Wherein：No. two high pressure constant speed pumps 2, No. two valves 3 of 1, No. two autoclaves, 4, No. three pressure gauges 5 of three-way valve,
Diversion chamber 6 is (wherein：Diversion chamber body 6a, hollow side wall 6b, major flow silica gel tube 6c, secondary water conservancy diversion silica gel tube 6d), back-pressure valve 7,
10, pressure gauge of 9, No. two pressure gauges of 8, high pressure constant speed pump of oil water separator, 12, valve of 11, autoclave
Door 13, No. three valves 14, No. three high pressure constant speed pumps 15, No. four high pressure constant speed pumps 16, weighing machines 17.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples, but they do not constitute limit to the present invention
Fixed, only for example, pass through simultaneously explanation advantages of the present invention will become clearer from easy to understand.
Fine and close oil pressure fracture network water-oil phase flow conductivity test system as shown in Figure 1, including diversion chamber 6 and diversion chamber 6
Three-way valve 4 that import is connected, export the oil water separator 8 being connected and the weighing machine shelving oil water separator 8 with diversion chamber 6
17, an autoclave 12 being connected with a high pressure constant speed pump 9 is connected with three-way valve 4 by a valve 13, connects
No. two autoclaves 2 having No. two high pressure constant speed pumps 1 are connected with three-way valve 4 by No. two valves 3；In addition, three-way valve 4
It is provided with No. three valves 14 and diversion chamber 6 between, and between No. three valves 14 and diversion chamber 6, be provided with No. three pressure gauges 5.This reality
Applying in example weighing machine 17 is high accuracy balance 17, for measuring diversion chamber 6 outlet total fluid production, and oil water separator 8 by based on
Amount diversion chamber 6 outlet water-oil phase volume.
The key point of the present invention is：In conjunction with shown in Fig. 2, Fig. 3, diversion chamber 6 includes diversion chamber body 6a, is arranged on water conservancy diversion
Major flow silica gel tube 6c in the body 6a hollow chamber of room, the length direction along major flow silica gel tube 6c be vertically arranged and with leading
Be connected many water conservancy diversion silica gel tube 6d of stream silica gel tube 6c and be arranged at every water conservancy diversion silica gel tube 6d terminal position
The support anti-drift net of agent, major flow silica gel tube 6c connects the inlet and outlet of diversion chamber body 6a, the end of every water conservancy diversion silica gel tube 6d
End connect with hollow side wall 6b of diversion chamber body 6a that (and hollow side wall 6b is used for testing fluid by secondary water conservancy diversion silica gel tube 6d's
Circulation passage), and No. three high pressure constant speed pumps 15 that body 6a hollow chamber of diversion chamber is connected, and No. three high pressure constant speed pumps 15 with lead
It is provided with a pressure gauge 11 between flow chamber body 6a.Major flow silica gel tube 6c is used for simulating major fracture during shale volume pressure break
(i.e. a diameter of 2mm～5mm of major fracture), secondary water conservancy diversion silica gel tube 6d is used for simulating secondary crack (0.2mm during shale volume pressure break
～1.0mm), filling in the water conservancy diversion silica gel tube of different size size supports haydite, for simulating different sanding concentration.
A part of water conservancy diversion silica gel tube 6d in many water conservancy diversion silica gel tube 6d is arranged on major flow silica gel tube 6c side, remains
Remaining part gradation water conservancy diversion silica gel tube 6d is arranged on major flow silica gel tube 6c opposite side, and the secondary water conservancy diversion silicon of major flow silica gel tube 6c both sides
Sebific duct 6d is arranged symmetrically it is also possible to be in staggered distribution, and secondary water conservancy diversion silica gel tube 6d spacing can be by horizontal well sub-clustering cluster spacing according to several
What similarity criterion determines.In the present embodiment time water conservancy diversion silica gel tube 6d along main silicon mozzle 6c equidistantly symmetrical for optimum side
Case, diversion chamber's body 6a volume is 80cm × 40cm × 20cm, including a major flow silica gel tube 6c, 14 water conservancy diversion silica gel
Pipe 6d and the anti-drift net of 16 proppants, 14 times water conservancy diversion silica gel tube 6d are divided into two groups, and every group eight are equidistantly symmetrical,
As shown in Figure 2.
In addition, diversion chamber 6 exports is additionally provided with back-pressure valve 7 and oil water separator 8 between, the import of back-pressure valve 7 with No. four
High pressure constant speed pump 16 is connected, and is provided with No. two pressure gauges 10 between back-pressure valve 7 and No. four high pressure constant speed pumps 16, and back-pressure valve 7 is controlled
Diversion chamber 6 processed outlet pressure, and back pressure size is controlled by No. four high pressure constant speed pumps 16.
The method of testing of above-mentioned densification oil pressure fracture network water-oil phase flow conductivity test system comprises the steps：
1) according to the sanding concentration of requirement of experiment and the particle diameter of proppant toward major flow silica gel tube 6c and Duo Gen water conservancy diversion silicon
In sebific duct 6d, laid proppant forms seam net；
2) inject hydraulic oil into the hollow chamber of diversion chamber body 6a, this hydraulic oil is used for transmission and simulation closure pressure
Power；Hydraulic oil is passed through No. three high pressure constant speed pumps 15 inject in the hollow chamber of diversion chamber body 6a until being full of entirely middle cavity
Room and hydraulic oil are atmospheric pressure state, read hydraulic oil volume V under record atmospheric pressure state by a pressure gauge 110；And by high pressure
Oil phase fluid injects in an autoclave 12, and water under high pressure phase fluid injects in No. two autoclaves 2；
3) default clossing pressure p is set, starts No. three high pressure constant speed pumps 15 and continue into body 6a hollow chamber of diversion chamber
Injection hydraulic oil, the pressure to a pressure gauge 11 is to preset after clossing pressure p, stablizes in diversion chamber's body 6a hollow cavity
Pressure, and record hydraulic oil volume V that No. three high pressure constant speed pumps 15 of clossing pressure p process are injected is risen to by normal pressure1；
The volume change V that clossing pressure p hydraulic oil is led to due to pressure rise is risen to by normal pressure2=pC × [V0+V1(1+
Cp)], wherein, C is hydraulic oil coefficient of compressibility；
The pressurized rear volume change V of major flow silica gel tube 6c and Duo Gen water conservancy diversion silica gel tube 6d3=V1-V2, i.e. V3Represent again
By proppant, in major flow silica gel tube and time water conservancy diversion silica gel tube, the pressurized rear width that stitches reduces led to volume change；
Due to being fully populated with proppant in major flow silica gel tube 6c and Duo Gen water conservancy diversion silica gel tube 6d under atmospheric pressure state, dominate
A diameter of d of stream silica gel tube 6c0, the length of major flow silica gel tube 6c is l0(i.e. major flow silica gel tube from import to outlet straight line
Distance), the diameter of many water conservancy diversion silica gel tube 6d is followed successively by d1～di, the length of many time water conservancy diversion silica gel tube 6d is followed successively by l1~
li, the diameter according to major flow silica gel tube 6c and Duo Gen water conservancy diversion silica gel tube 6d and length, calculate equivalent initial seam dictyosome and amass
VF0With initial seam net width w0, that is,Wherein n is that a major flow silica gel tube 6c is led with many times
The radical summation of stream silica gel tube 6d, therefore can calculate the phase permeability under normal pressure；
And calculate the equivalent seam net width under clossing pressure p
4) open 13, No. two valves 3 of a valve and No. three valves 14, start a high pressure constant speed pump 9 and No. two high pressure
Constant speed pump 1, the injection of a number high pressure constant speed pump 9 of setting and No. two high pressure constant speed pumps 1, than λ, drives a high pressure with constant speed mode
The water under high pressure in hydraulic oil phase fluid (simulation oil, kerosene, high pressure formation crude oil) and No. two autoclaves 2 in reactor 12
In the seam net to diversion chamber body 6a for the phase fluid (distilled water, broken fracturing fluid)；
When the hydraulic oil phase fluid of diversion chamber's body import is equal with oil water separator oil phase rate of discharge, meanwhile, water conservancy diversion
When the water under high pressure phase fluid of room body import is equal with oil water separator aqueous phase rate of discharge, record inlet outlet pressure differential Δ p, oil phase
Fluid flow qoWith aqueous phase fluid flow qw, equivalent phase permeability is calculated using Darcy's law
Wherein, μ0For oil phase viscosity, μwFor aqueous phase viscosity；
5) change a high pressure constant speed pump 9 and λ is compared in the injection of No. two high pressure constant speed pumps 1i, repeat step 4), test is different
λ is compared in injectioniUnder equivalent phase permeability koi、kwi, thus calculating air water biphase flow conductivity koiw、kwiw；
6) different sanding concentration, repeat step 4 are changed) and step 5), to test different sanding concentration, difference is injected under ratio
The flow conductivity of water-oil phase.
Other is unspecified to belong to prior art.
Claims (7)
1. a kind of densification oil pressure fracture network water-oil phase flow conductivity test system, is connected including diversion chamber, with diversion chamber import
Three-way valve, with diversion chamber's oil water separator of being connected of outlet and with the weighing machine shelving oil water separator, be connected with No. one
A number autoclave of high pressure constant speed pump is connected with three-way valve by a valve, is connected with the two of No. two high pressure constant speed pumps
Number autoclave pass through No. two valves be connected with three-way valve it is characterised in that：Described diversion chamber includes diversion chamber's body, peace
The major flow silica gel tube that is contained in body hollow chamber of diversion chamber and the length direction along major flow silica gel tube be vertically arranged and with
The many water conservancy diversion silica gel tubes that major flow silica gel tube is connected, major flow silica gel tube connects the inlet and outlet of diversion chamber's body,
The end of every water conservancy diversion silica gel tube is connected with the hollow side wall of diversion chamber's body；Also include and body hollow chamber of diversion chamber phase
No. three high pressure constant speed pumps even, and between described No. three high pressure constant speed pumps and described diversion chamber body, it is provided with a pressure gauge.
2. according to claim 1 fine and close oil pressure fracture network water-oil phase flow conductivity test system it is characterised in that：Described
It is provided with the anti-drift net of proppant at the terminal position of every water conservancy diversion silica gel tube.
3. according to claim 1 or claim 2 densification oil pressure fracture network water-oil phase flow conductivity test system it is characterised in that：
A part of water conservancy diversion silica gel tube in described many water conservancy diversion silica gel tubes is arranged on major flow silica gel tube side, and remainder gradation is led
Stream silica gel tube is arranged on major flow silica gel tube opposite side, and the secondary water conservancy diversion silica gel tube of major flow silica gel tube both sides is arranged symmetrically.
4. according to claim 3 fine and close oil pressure fracture network water-oil phase flow conductivity test system it is characterised in that：Described
It is provided with back-pressure valve, the import of described back-pressure valve and No. four high pressure constant speed pump phases between diversion chamber's outlet and described oil water separator
Even, and it is provided with No. two pressure gauges between described back-pressure valve and described No. four high pressure constant speed pumps.
5. according to claim 4 fine and close oil pressure fracture network water-oil phase flow conductivity test system it is characterised in that：Described
It is provided with No. three valves between three-way valve and described diversion chamber, and arrange between described No. three valves and described diversion chamber body
There are No. three pressure gauges.
6. fine and close oil pressure fracture network water-oil phase flow conductivity test system as described in any claim in Claims 1 to 5
Method of testing it is characterised in that：Described method of testing comprises the steps：
1) according to the sanding concentration of requirement of experiment and the particle diameter of proppant toward in major flow silica gel tube and Duo Gen water conservancy diversion silica gel tube
Laid proppant forms seam net；
2) hydraulic oil is passed through No. three high pressure constant speed pumps to inject in the hollow chamber of diversion chamber's body until being full of entirely middle cavity
Room and hydraulic oil are atmospheric pressure state, read hydraulic oil volume V under record atmospheric pressure state by a pressure gauge0；And by hydraulic oil
Phase fluid injects in an autoclave, and water under high pressure phase fluid injects in No. two autoclaves；
3) default clossing pressure p is set, starts No. three high pressure constant speed pumps and continue to inject hydraulic pressure into body hollow chamber of diversion chamber
Oil, after being default clossing pressure p to a manometric pressure, stablizes the pressure in diversion chamber's body hollow cavity, and records
Hydraulic oil volume V that No. three high pressure constant speed pumps of clossing pressure p process are injected is risen to by normal pressure1；
The volume change V that clossing pressure p hydraulic oil is led to due to pressure rise is risen to by normal pressure2=pC × [V0+V1(1+
Cp)], wherein, C is hydraulic oil coefficient of compressibility；
Major flow silica gel tube and the pressurized rear volume change V of Duo Gen water conservancy diversion silica gel tube3=V1-V2；
Due to being fully populated with proppant, major flow silica gel tube in major flow silica gel tube and Duo Gen water conservancy diversion silica gel tube under atmospheric pressure state
A diameter of d0, the length of major flow silica gel tube is l0, the diameter of many time water conservancy diversion silica gel tubes is followed successively by d1～di, lead for many times
The length of stream silica gel tube is followed successively by l1～li, the diameter according to major flow silica gel tube and Duo Gen water conservancy diversion silica gel tube and length, calculate
Equivalent initial seam dictyosome amasss VF0With initial seam net width w0, that is,Wherein n is a major flow
Silica gel tube and the radical summation of many water conservancy diversion silica gel tubes；
And calculate the equivalent seam net width under clossing pressure p
4) open a valve, No. two valves and No. three valves, start a high pressure constant speed pump and No. two high pressure constant speed pumps, set
The injection of a number high pressure constant speed pump and No. two high pressure constant speed pumps, than λ, drives the high pressure in an autoclave with constant speed mode
Water under high pressure phase fluid in oil phase fluid and No. two autoclaves is to diversion chamber's intrinsic seam net；
When the hydraulic oil phase fluid of diversion chamber's body import is equal with oil water separator oil phase rate of discharge, meanwhile, diversion chamber's basis
When the water under high pressure phase fluid of body import is equal with oil water separator aqueous phase rate of discharge, record inlet outlet pressure differential Δ p, oil phase fluid
Flow qoWith aqueous phase fluid flow qw, equivalent phase permeability is calculated using Darcy's law
Wherein, μ0For oil phase viscosity, μwFor aqueous phase viscosity；
5) change a high pressure constant speed pump and λ is compared in the injection of No. two high pressure constant speed pumpsi, repeat step 4), λ is compared in the different injection of testi
Under equivalent phase permeability koi、kwi, thus calculating water-oil phase flow conductivity koiw、kwiw.
7. the method for testing of fine and close oil pressure fracture network water-oil phase flow conductivity test system according to claim 6, it is special
Levy and be：Described step 5) be completed after, change different sanding concentration, repeat step 4) and step 5), to test different paving
Sand concentration, the different flow conductivity injecting than lower water-oil phase.
Priority Applications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941672A (en) * | 2017-11-14 | 2018-04-20 | 中南大学 | Low permeability reservoir dynamic takes sand and expands seam test device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2837592A1 (en) * | 2002-03-20 | 2003-09-26 | Inst Francais Du Petrole | Fluid e.g. oil, flow in multilayer porous medium modeling method, involves discretizing each fractured layer by grid pattern, and calculating local flows between each fracture grid cell and associated matrix volume in pseudo-steady state |
| CN103048253A (en) * | 2011-10-13 | 2013-04-17 | 陈兴佳 | Testing method of substrate permeation rate of repeated fracturing plugging agent |
| US20140136116A1 (en) * | 2012-11-14 | 2014-05-15 | Hassan A A BANIAN | Method and system for permeability calculation using production logs for horizontal wells |
| CN104316447A (en) * | 2014-10-28 | 2015-01-28 | 中国矿业大学 | Fractured rock mass stress and seepage coupled testing system and method |
| CN104533404A (en) * | 2014-12-09 | 2015-04-22 | 中国石油集团川庆钻探工程有限公司 | Visual experimental device for simulating proppant migration in complex slotted net |
| CN104564043A (en) * | 2014-12-18 | 2015-04-29 | 中国石油大学(华东) | Flow diversion chamber capable of testing flow diversion capacity of fracture network of tight reservoir by gas and working method thereof |
| CN104564048A (en) * | 2015-01-20 | 2015-04-29 | 西南石油大学 | Large-size and multi-crack simulation device and method for propping agent transportation |
| CN104897521A (en) * | 2015-06-23 | 2015-09-09 | 中国华能集团清洁能源技术研究院有限公司 | Carbon dioxide anhydrous fracturing liquid flow conductivity testing system |
| CN105136991A (en) * | 2015-09-10 | 2015-12-09 | 中国华能集团清洁能源技术研究院有限公司 | Multifunctional crack flow guide capability test system and method |
| CN105301192A (en) * | 2015-10-29 | 2016-02-03 | 西南石油大学 | Experimental device and method for simulating single-crack flowback after shale gas fracturing |
| CN105372161A (en) * | 2015-11-18 | 2016-03-02 | 中国石油天然气股份有限公司 | Method for testing selective permeability of proppant |
| CN205277410U (en) * | 2016-01-06 | 2016-06-01 | 西南石油大学 | Proppant is spread and is put and flow conductivity integration collimated light source device |
-
2016
- 2016-10-17 CN CN201610907058.3A patent/CN106404631B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2837592A1 (en) * | 2002-03-20 | 2003-09-26 | Inst Francais Du Petrole | Fluid e.g. oil, flow in multilayer porous medium modeling method, involves discretizing each fractured layer by grid pattern, and calculating local flows between each fracture grid cell and associated matrix volume in pseudo-steady state |
| CN103048253A (en) * | 2011-10-13 | 2013-04-17 | 陈兴佳 | Testing method of substrate permeation rate of repeated fracturing plugging agent |
| US20140136116A1 (en) * | 2012-11-14 | 2014-05-15 | Hassan A A BANIAN | Method and system for permeability calculation using production logs for horizontal wells |
| CN104316447A (en) * | 2014-10-28 | 2015-01-28 | 中国矿业大学 | Fractured rock mass stress and seepage coupled testing system and method |
| CN104533404A (en) * | 2014-12-09 | 2015-04-22 | 中国石油集团川庆钻探工程有限公司 | Visual experimental device for simulating proppant migration in complex slotted net |
| CN104564043A (en) * | 2014-12-18 | 2015-04-29 | 中国石油大学(华东) | Flow diversion chamber capable of testing flow diversion capacity of fracture network of tight reservoir by gas and working method thereof |
| CN104564048A (en) * | 2015-01-20 | 2015-04-29 | 西南石油大学 | Large-size and multi-crack simulation device and method for propping agent transportation |
| CN104897521A (en) * | 2015-06-23 | 2015-09-09 | 中国华能集团清洁能源技术研究院有限公司 | Carbon dioxide anhydrous fracturing liquid flow conductivity testing system |
| CN105136991A (en) * | 2015-09-10 | 2015-12-09 | 中国华能集团清洁能源技术研究院有限公司 | Multifunctional crack flow guide capability test system and method |
| CN105301192A (en) * | 2015-10-29 | 2016-02-03 | 西南石油大学 | Experimental device and method for simulating single-crack flowback after shale gas fracturing |
| CN105372161A (en) * | 2015-11-18 | 2016-03-02 | 中国石油天然气股份有限公司 | Method for testing selective permeability of proppant |
| CN205277410U (en) * | 2016-01-06 | 2016-06-01 | 西南石油大学 | Proppant is spread and is put and flow conductivity integration collimated light source device |
Non-Patent Citations (2)
| Title |
|---|
| 任宗孝等: "致密油藏体积压裂水平井半解析渗流模型", 石油钻采工艺 * |
| 徐鸿涛等: "疏水支撑剂两相导流能力实验研究", 科学技术与工程 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941672A (en) * | 2017-11-14 | 2018-04-20 | 中南大学 | Low permeability reservoir dynamic takes sand and expands seam test device |
| CN107941672B (en) * | 2017-11-14 | 2020-03-10 | 中南大学 | Dynamic sand-carrying joint-expanding testing device for low-permeability reservoir |
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