CN108827856A - A kind of rock beam attachment means and method for flow conductivity evaluation experimental - Google Patents
A kind of rock beam attachment means and method for flow conductivity evaluation experimental Download PDFInfo
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- CN108827856A CN108827856A CN201810707620.7A CN201810707620A CN108827856A CN 108827856 A CN108827856 A CN 108827856A CN 201810707620 A CN201810707620 A CN 201810707620A CN 108827856 A CN108827856 A CN 108827856A
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- 239000011435 rock Substances 0.000 title claims abstract description 131
- 238000011156 evaluation Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims abstract description 57
- 230000003028 elevating effect Effects 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000000565 sealant Substances 0.000 claims description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000000638 stimulation Effects 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 238000011900 installation process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003079 shale oil Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000002699 waste material Substances 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
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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Abstract
The present invention relates to a kind of rock beam attachment means and method for flow conductivity evaluation experimental, which is characterized in that the rock beam attachment means include bracket, hydraulic elevating platform, diversion chamber, displacement sensor and computer；The hydraulic elevating platform is fixedly installed on the bracket, the diversion chamber is provided at the top of the hydraulic elevating platform, longitudinal flow-guiding channel offered for installing rock beam additional at the top of the diversion chamber, the diversion chamber side offers gas-liquid inlet and outlet；The cradle top is provided with institute's displacement sensors, corresponding to the position of institute's displacement sensors, displacement sensor reflection cushion block is provided at the top of the hydraulic elevating platform, institute's displacement sensors are used to acquire the displacement data of the rock beam in real time；Institute's displacement sensors and hydraulic elevating platform are also electrically connected the computer, and the present invention can be widely applied in the exploitation of unconventional oil and gas field and stimulation technology field.
Description
Technical field
The present invention relates to a kind of rock beam attachment means and method for flow conductivity evaluation experimental, belong to unconventional oil
Gas field development and stimulation technology field.
Background technique
With the exhaustion of conventional gas and oil, the exploitation of unconventional oil and gas is paid attention to, fine and close oil gas, shale oil gas and densification fire
The exploitation that the hardly possible such as mountain rock gas employs resource needs horizontal well technology and extensive hydraulic fracturing that could obtain economic benefit.Volume pressure
Splitting is a kind of hydraulic fracturing method developed rapidly with the demand of unconventional oil and gas exploitation, and construction is usually formed multiple later
Miscellaneous fracture network, these fracture networks are made of the single crack to come in every shape, are the main thoroughfares of oil gas flowing.It is formed high
The crack of flow conductivity is one of the target that volume fracturing is pursued, and needs the flow conductivity in water conservancy diversion experimental evaluation crack, crack
Flow conductivity refers to the product of crack closure width and fracture permeabgility under certain clossing pressure.Forefathers are through a large number of experiments
The factor for influencing supporting crack flow conductivity is had studied, aperture, seam surface roughness, the concentration of sanding, sanding class including crack
Type and testing time etc. take targetedly measure in pressing crack construction and have harvested good effect.
Currently, the evaluation appts of fracture condudtiviy are substantially uniform, operating process has formed professional standard.Diversion chamber is
The important component of flow conductivity evaluation instrument is supported, rock beam is packed into diversion chamber and forms the crack with certain flow conductivity, leads
Stream experiment is the premise tested to the installation of the processing of rock beam and rock beam in diversion chamber before starting.On the one hand, rock beam
Installation takes time and effort very much, and the installation of one group of short-term flow conductivity experiment rock beam expends more than half for accounting for total experiment duration；Separately
On the one hand, rock beam install additional it is smooth whether be related to the airtightness of diversion chamber, directly determine the success or not of experiment.Study rock
How plate is efficiently packed into diversion chamber, not only saves time cost, the even more guarantee of Success in Experiment.To generally it add in the prior art
Work is placed on diversion chamber's entrance at the rock beam for meeting water conservancy diversion chamber size, and uniformly firmly pressing rock beam progresses into diversion chamber to both hands,
When rock beam enters a certain depth, collateral resistance is increasing in the sealant of rock beam side and diversion chamber, when rock beam is deep into again
When certain depth, rock beam is gradually tapped with rubber hammer, reaches desired location and fixation, diversion chamber is then inverted 180 ° and is fallen
It sets, another block of rock beam is installed additional using above-mentioned identical method, finally rock beam is fixed with fixed screw.
However, the above method still has certain problem：1) rock beam is installed additional using this method, the initial stage needs artificial
Rock beam is gradually pressed into the indoor a part of water conservancy diversion, the side of rock beam is sealed with sealant, and rock beam both ends are not parallel,
Sealant is easily damaged into diversion chamber, with the increase of rock beam pressure in experimentation, it may occur that leakage causes to test
It interrupts, reduces the success rate of experiment.2) after rock beam pressing manually being entered diversion chamber to a certain degree, rock beam is tapped using rubber hammer
Going successively to diversion chamber cannot be guaranteed that rock beam both ends enter in parallel, need just to be able to achieve than more rich installation experience, for behaviour
Make unskilled experimenter, needing repeatedly to install additional repeatedly could succeed, and waste the unnecessary time.3) rock is made by rubber hammer
Plate steps into diversion chamber, rock beam both ends discontinuity, therefore the depth entered is different, needs constantly to adjust rock beam two
The balance at end is unfavorable for controlling the aperture of incipient crack.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of high efficiency and time conservation and experiment success rate it is high be used for water conservancy diversion energy
The rock beam attachment means and method of power evaluation experimental.
To achieve the above object, the present invention takes following technical scheme：A kind of rock beam for flow conductivity evaluation experimental
Attachment means, which is characterized in that the rock beam attachment means include bracket, hydraulic elevating platform, diversion chamber, displacement sensor and meter
Calculation machine；The hydraulic elevating platform is fixedly installed on the bracket, is provided with the diversion chamber at the top of the hydraulic elevating platform,
Longitudinal flow-guiding channel offered for installing rock beam additional at the top of the diversion chamber, the diversion chamber side offer gas-liquid disengaging
Mouthful；The cradle top is provided with institute's displacement sensors, and corresponding to the position of institute's displacement sensors, the hydraulic lifting is flat
Displacement sensor reflection cushion block is provided at the top of platform, institute's displacement sensors are used to acquire the displacement data of the rock beam in real time；
Institute's displacement sensors and hydraulic elevating platform are also electrically connected the computer.
Further, the cradle top is additionally provided with level meter.
Further, the hydraulic elevating platform includes hydraulic press, platform and hydraulic pump；The hydraulic motor spindle is fixed to be connected
The bracket is connect, is fixedly connected with the platform at the top of the hydraulic press, the table top is provided with the diversion chamber, the liquid
The inlet of press connects the liquid outlet of the hydraulic pump；The hydraulic press is also electrically connected the computer.
Further, the bracket is the frame structure being formed by fixedly connecting by pedestal, top plate, support rod and nut.
Further, parameter setting module and hydraulic press control module are provided in the computer；The parameter setting
Module is for presetting the parameter of the hydraulic press, the fracture width of the rock beam and the rock beam in the flow-guiding channel
Initial position, and it is sent to the hydraulic press control module, wherein the parameter of the hydraulic press includes the lifting of the hydraulic press
Speed, adjustable height and lifting maximum power；The hydraulic press control module for acquiring in real time according to institute's displacement sensors
Displacement data, the parameter of the hydraulic press, the fracture width of the rock beam and the rock beam in the initial of the flow-guiding channel
Position controls opening or closing for the hydraulic press.
Further, the precision of institute's displacement sensors is 0.1mm.
A kind of rock beam installation method for flow conductivity evaluation experimental, which is characterized in that include the following steps：Set rock
The initial position of the fracture width of plate and lower rock beam in flow-guiding channel, wherein rock beam includes lower cushion block, lower seal, lower rock
Plate, upper rock beam, upper seal and upper cushion block；Data based on level meter, are adjusted bracket, guarantee the water of rack plate
It is flat；Diversion chamber is placed on hydraulic elevating platform, lower rock beam is packed into flow-guiding channel, the lower sealing after sealant will be coated with
Snare sets cushion block, and lower cushion block is placed at the top of lower rock beam；Start hydraulic elevating platform, is adopted in real time according to displacement sensor
Lower rock beam is pressed into preset initial position in flow-guiding channel by lower cushion block by the displacement data of collection；Lower rock will be installed additional
Diversion chamber after plate is upside down on hydraulic elevating platform, and upper rock beam is packed into flow-guiding channel, upper close after sealant by being coated with
Seal is arranged cushion block, and upper cushion block is placed at the top of upper rock beam；Start hydraulic elevating platform, it is real-time according to displacement sensor
Upper rock beam is pressed into flow-guiding channel, so that splitting between lower rock beam and upper rock beam by the displacement data of acquisition by upper cushion block
Seam reaches preset fracture width.
The invention adopts the above technical scheme, which has the following advantages：1, the present invention places hydraulic elevating platform
In bracket, diversion chamber is set at the top of hydraulic elevating platform, rock beam is pressed by diversion chamber by hydraulic elevating platform, avoids people
Work installs the adjusting Correction Problemss during rock beam additional, while avoiding the process installed additional repeatedly, is greatly saved and installs rock beam additional
Time.2, the present invention is due to being arranged level meter in cradle top, and being able to detect bracket, whether holding is horizontal, to guarantee that rock beam enters
Rock beam both ends uniform force during diversion chamber.3, the present invention reflects cushion block, displacement using displacement sensor and displacement sensor
Sensor reflection cushion block be used cooperatively with displacement sensor, acquire the displacement of rock beam in real time by displacement sensor, can accurately,
Quickly determine the fracture aperture of rock beam.4, due to once leak occurs, then being tested in being forced in flow conductivity evaluation experimental
Only, rock beam is slowly at the uniform velocity packed into the flow-guiding channel of diversion chamber by the present invention in installation process, to guarantee the leakproofness of diversion chamber,
The injury to sealant applied around rock beam is greatly reduced, can be widely applied to.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of attachment means of the present invention；
Fig. 2 is the structural schematic diagram of rock beam installation process in the present invention.
Specific embodiment
Come to carry out detailed description to the present invention below in conjunction with attached drawing.It should be appreciated, however, that attached drawing has been provided only more
Understand the present invention well, they should not be interpreted as limitation of the present invention.
It as shown in Figure 1 and Figure 2, include bracket provided by the present invention for the rock beam attachment means of flow conductivity evaluation experimental
1, hydraulic elevating platform 2, diversion chamber 3, level meter 4, displacement sensor 5 and computer 6, wherein bracket 1 is by pedestal 11, branch
The frame structure that strut 12, top plate 13 and nut 14 are formed by fixedly connecting.
Hydraulic elevating platform 2 is fixedly installed in bracket 1, diversion chamber 3 is provided at the top of hydraulic elevating platform 2, for controlling
The lifting of diversion chamber 3.The flow-guiding channel 31 for installing rock beam 7 additional is longitudinally offered in diversion chamber 3,3 side of diversion chamber offers
The gas-liquid inlet and outlet 32 for being passed through or being discharged for gas-liquid in experimentation.Level meter 4 and displacement sensing are provided at the top of top plate 13
Device 5, level meter 4 is for determining whether diversion chamber 3 is horizontal in use process, to guarantee 3 uniform force of diversion chamber in use process.
Corresponding to the position of displacement sensor 5, displacement sensor reflection cushion block 8, displacement sensor are provided at the top of hydraulic elevating platform 2
Reflection cushion block 8 is used cooperatively with displacement sensor 5, and displacement sensor 5 for acquiring the displacement data of rock beam 7 in real time, to guarantee
Rock beam 7 installs the degree of regulation in crack in final stage rock beam 7 additional.
Displacement sensor 5 and hydraulic elevating platform 2 are also electrically connected computer 6.
In a preferred embodiment, hydraulic elevating platform 2 includes hydraulic press 21, platform 22 and hydraulic pump 23, hydraulic
21 bottom of machine is fixed at 11 top of pedestal, is fixedly connected with platform 22 at the top of hydraulic press 21, is provided with water conservancy diversion at the top of platform 22
Room 3, the liquid outlet of the inlet connection hydraulic pump 23 of hydraulic press 21, it is rock beam 7 that hydraulic press 21, which is used for the lifting of control platform 22,
Installation power is provided, hydraulic press 21 is also electrically connected computer 6.
In a preferred embodiment, parameter setting module and hydraulic press control module are provided in computer 6.Parameter
Setting module is for presetting the parameter of hydraulic press 21, the fracture width of rock beam 7 and rock beam 7 in the initial bit of flow-guiding channel 31
It sets, and is sent to hydraulic press control module, wherein the parameter of hydraulic press 21 includes the lifting speed of hydraulic press 21, adjustable height
With lifting maximum power.Displacement data that hydraulic press control module is used to acquired in real time according to displacement sensor 5, hydraulic press 21
Parameter, the fracture width of rock beam 7 and rock beam 7 control opening or closing for hydraulic press 21 in the initial position of flow-guiding channel 31.
In a preferred embodiment, the precision of displacement sensor 5 is 0.1mm.
As shown in Fig. 2, being followed successively by lower cushion block 71, lower seal 72, lower rock beam 73, crack from top to bottom below with rock beam 7
74, upper rock beam 75, upper seal 76 and upper cushion block 77 are that the present invention will be described in detail for flow conductivity evaluation reality for specific embodiment
The rock beam tested installs method additional：
1) flow-guiding channel 31 and gas-liquid inlet and outlet 32 of diversion chamber 3 are cleared up.
2) set rock beam 7 fracture width and lower rock beam 73 flow-guiding channel 31 initial position.
3) data based on level meter 4 adjust the nut 14 on support rod 12 to guarantee the level of top plate 13.
4) diversion chamber 3 is placed on hydraulic elevating platform 2, lower rock beam 73 is packed into flow-guiding channel 31, will be coated with close
Lower seal 72 after sealing is arranged lower cushion block 71, and lower cushion block 71 is placed on lower 73 top of rock beam.
5) start hydraulic elevating platform 2, it, will by lower cushion block 71 according to the displacement data that displacement sensor 5 acquires in real time
Lower rock beam 73 is slowly pressed into preset initial position in flow-guiding channel 31.
6) diversion chamber 3 under installing additional after rock beam 73 is upside down on hydraulic elevating platform 2, and upper rock beam 75 loading water conservancy diversion is led to
In road 31, the upper seal 76 after sealant will be coated with and be arranged upper cushion block 77, and upper cushion block 77 is placed on upper 75 top of rock beam.
7) start hydraulic elevating platform 2, it, will by upper cushion block 77 according to the displacement data that displacement sensor 5 acquires in real time
Upper rock beam 75 is slowly pressed into flow-guiding channel 31 so that the crack between upper rock beam 75 and lower rock beam 73 reach to obtain it is preset
Fracture width, and by 21 pressure release of hydraulic press, upper seal 76, lower seal 72, upper rock beam 75 and lower 73 common guarantee of rock beam
The airtightness of diversion chamber 3 after installation rock beam 7.
Above-mentioned steps 4) and 6) in, diversion chamber 3 can be placed on a levels operation platform, by lower cushion block 71, under
Sealing ring 72 and lower rock beam 73, or after upper rock beam 75, upper seal 76 and upper cushion block 77 are packed into flow-guiding channel 31, then will lead
Flow chamber 3 is placed on hydraulic elevating platform 2.
Further, due to the squeezing action in experimentation by stress, rock beam 7 can be firmly embedded into and lead in most cases
In circulation road 31, rock beam 7 is not easy to be removed after experiment, similar with installation process, can attachment means pair through the invention
7 unilateral side of rock beam after experiment continues to pressurize, and rock beam 7 is released out of flow-guiding channel 31, to unload rock beam 7.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each component, connection type and manufacture craft etc. are all
It can be varied, all equivalents and improvement carried out based on the technical solution of the present invention should not exclude
Except protection scope of the present invention.
Claims (7)
1. a kind of rock beam attachment means for flow conductivity evaluation experimental, which is characterized in that the rock beam attachment means include branch
Frame, hydraulic elevating platform, diversion chamber, displacement sensor and computer；
The hydraulic elevating platform is fixedly installed on the bracket, is provided with the diversion chamber at the top of the hydraulic elevating platform,
Longitudinal flow-guiding channel offered for installing rock beam additional at the top of the diversion chamber, the diversion chamber side offer gas-liquid disengaging
Mouthful；
The cradle top is provided with institute's displacement sensors, corresponding to the position of institute's displacement sensors, the hydraulic lifting
Table top is provided with displacement sensor reflection cushion block, and institute's displacement sensors are used to acquire the displacement number of the rock beam in real time
According to；
Institute's displacement sensors and hydraulic elevating platform are also electrically connected the computer.
2. a kind of rock beam attachment means for flow conductivity evaluation experimental as described in claim 1, which is characterized in that described
Cradle top is additionally provided with level meter.
3. a kind of rock beam attachment means for flow conductivity evaluation experimental as described in claim 1, which is characterized in that described
Hydraulic elevating platform includes hydraulic press, platform and hydraulic pump；
The hydraulic motor spindle is fixedly connected with the bracket, is fixedly connected with the platform, the deck roof at the top of the hydraulic press
Portion is provided with the diversion chamber, and the inlet of the hydraulic press connects the liquid outlet of the hydraulic pump；
The hydraulic press is also electrically connected the computer.
4. a kind of rock beam attachment means for flow conductivity evaluation experimental as described in claim 1, which is characterized in that described
Bracket is the frame structure being formed by fixedly connecting by pedestal, top plate, support rod and nut.
5. a kind of rock beam attachment means for flow conductivity evaluation experimental as described in claim 1, which is characterized in that described
Parameter setting module and hydraulic press control module are provided in computer；
The parameter setting module is for presetting the parameter of the hydraulic press, the fracture width of the rock beam and the rock beam
In the initial position of the flow-guiding channel, and it is sent to the hydraulic press control module, wherein the parameter of the hydraulic press includes
Lifting speed, adjustable height and the lifting maximum power of the hydraulic press；
The ginseng of displacement data, the hydraulic press that the hydraulic press control module is used to be acquired in real time according to institute's displacement sensors
The fracture width and the rock beam of several, the described rock beam control the unlatching of the hydraulic press in the initial position of the flow-guiding channel
Or it closes.
6. such as a kind of rock beam attachment means for flow conductivity evaluation experimental described in any one of claim 1 to 5, feature
It is, the precision of institute's displacement sensors is 0.1mm.
7. a kind of rock beam for flow conductivity evaluation experimental installs method additional, which is characterized in that include the following steps：
Set rock beam fracture width and lower rock beam flow-guiding channel initial position, wherein rock beam include lower cushion block, under
Sealing ring, lower rock beam, upper rock beam, upper seal and upper cushion block；
Data based on level meter, are adjusted bracket, guarantee the level of rack plate；
Diversion chamber is placed on hydraulic elevating platform, lower rock beam is packed into flow-guiding channel, it is close under being coated with after sealant
Seal is arranged lower cushion block, and lower cushion block is placed at the top of lower rock beam；
Start hydraulic elevating platform, lower rock beam is pressed by the displacement data acquired in real time according to displacement sensor by lower cushion block
The preset initial position into flow-guiding channel；
Diversion chamber under installing additional after rock beam is upside down on hydraulic elevating platform, and upper rock beam is packed into flow-guiding channel, will be coated with
Upper seal after sealant is arranged cushion block, and upper cushion block is placed at the top of upper rock beam；
Start hydraulic elevating platform, upper rock beam is pressed by the displacement data acquired in real time according to displacement sensor by upper cushion block
Into flow-guiding channel, so that the crack between lower rock beam and upper rock beam reaches preset fracture width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810707620.7A CN108827856B (en) | 2018-07-02 | 2018-07-02 | Rock plate adding device and method for flow conductivity evaluation experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810707620.7A CN108827856B (en) | 2018-07-02 | 2018-07-02 | Rock plate adding device and method for flow conductivity evaluation experiment |
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| Publication Number | Publication Date |
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| CN108827856A true CN108827856A (en) | 2018-11-16 |
| CN108827856B CN108827856B (en) | 2020-09-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109958419A (en) * | 2019-03-13 | 2019-07-02 | 东北大学 | A kind of hydraulically created fracture flow conductivity experimental system and its application method |
| CN110173243A (en) * | 2019-07-09 | 2019-08-27 | 西南石油大学 | A kind of Yin'gen basin water filling/gas injection development effect evaluating device and method |
| CN110939439A (en) * | 2019-12-11 | 2020-03-31 | 东北石油大学 | Long-term conductivity measuring device for continental facies shale oil reservoir fractures |
| CN111474155A (en) * | 2020-04-28 | 2020-07-31 | 广东博创佳禾科技有限公司 | Ralstonia solanacearum solution guiding device |
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