CN106198543A - A kind of experimental provision verifying dynamic negative-pressure perforation tunnel cleaning degree - Google Patents
A kind of experimental provision verifying dynamic negative-pressure perforation tunnel cleaning degree Download PDFInfo
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- CN106198543A CN106198543A CN201610523169.4A CN201610523169A CN106198543A CN 106198543 A CN106198543 A CN 106198543A CN 201610523169 A CN201610523169 A CN 201610523169A CN 106198543 A CN106198543 A CN 106198543A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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Abstract
The invention discloses a kind of experimental provision verifying dynamic negative-pressure perforation tunnel cleaning degree, pressure-releasing chamber is connected by connecting tube by this device with rock sample target body, certain negative pressure value is set, by the metal fragment in perforation tunnel and fractured rock by entering into pressure-releasing chamber communicating pipe, solving existing apparatus cannot the direct Negative Pressure Difference problem of difference cleaning degree in Accurate Prediction perforation tunnel.This invention ensures that the reliability that rock perforation tunnel is cleaned out；Can be with realization petroleum casing pipe and the impact on detonation pressure peak of the oil pipe gap and the impact of the cleaning degree on perforation tunnel；What Negative Pressure Difference caused shove carries metal fragment and fractured rock by the closure metallic plate after running through, can observe that metal fragment and fractured rock rush in the process of pressure-releasing chamber by high-speed camera, determine that causing the medium shoved is gas or liquid, may further be the flow mechanism in perforation tunnel and scientific basis is provided.
Description
Technical field
The present invention relates to improve the rate of oil and gas recovery and carry out dynamic negative-pressure perforating system, particularly a kind of checking dynamic negative-pressure is penetrated
The experimental provision of duct, hole cleaning degree.
Background technology
Dynamic negative-pressure perforating technology be a kind of can clear up perforation tunnel chip, improve the rate of oil and gas recovery completion means.
Its feature is neighbouring equipped with a pressure-releasing chamber at perforating gun, when perforating gun is ignited, ignites pressure-releasing chamber simultaneously and realizes through hole.Pressure-releasing chamber
The negative pressure caused after through hole makes the entrance of shoving that the metal jet chip in perforation tunnel and fractured rock cause with pressure oscillation
In sleeve pipe, reduce the thickness of compaction band in perforation tunnel, reduce due to the perforating job reduction to in-place permeability.But it is sharp
Pressure peak and the negative pressure value in the shaft bottom measured with pressure transducer are not to produce two numerical value of Negative Pressure Difference really.Existing
Single-shot perforation experimental provision be all after perforating bullet is ignited, produce strong shock wave and fluid and sleeve pipe and oil pipe can be made to occur
Wall reflects, and making measurement blast pressure sensor record pressure peak is 2～8 times of real liguid pressure, it is impossible to truly reflect
The true dynamic negative-pressure difference value of perforation hole duct cleaning degree, can not judge to carry Jie of metal fragment and fractured rock simultaneously
Matter is gas or liquid.Existing single-shot perforation experimental provision can not reflect the cavity effect and sleeve pipe that explosion chamber causes
With the impact on blast pressure of the oil pipe gap.
During it follows that utilize single-shot perforation experimental provision to test, only obtain is metal jet penetration rock sample
The Penetration Depth of target body.Due to the increase of experimental data, existing empirical equation has been able to predict metal jet penetration target body
The degree of depth.Existing experimental provision can not arrange negative pressure value, forms negative pressure official post metal fragment and fragmented rock from Perforation
Remove in road.More cannot accurately determine in target body perforation tunnel required real pressure differential in the case of difference cleaning degree,
Science can not provide design considerations for the design of dynamic negative-pressure perforating job side really.
Summary of the invention
It is an object of the invention to: overcome the deficiencies in the prior art, it is provided that a kind of checking dynamic negative-pressure perforation tunnel cleaning
The experimental provision of degree, pressure-releasing chamber is connected by communicating pipe by this device with rock sample target body, arranges certain negative pressure value, by perforation
Metal fragment in duct and fractured rock are by entering into pressure-releasing chamber communicating pipe, and solving existing apparatus cannot direct Accurate Prediction
The Negative Pressure Difference problem of different cleaning degree in perforation tunnel.
The technical solution used in the present invention is: a kind of experimental provision verifying dynamic negative-pressure perforation tunnel cleaning degree, bag
Include confined pressure chamber, pressure-releasing chamber, pressurization pond and explosion chamber；Confined pressure chamber includes that oiling prelum, rock sample target body, rock sample target body cylinder prop up
Frame, confined pressure cavity shell, closure metallic plate and survey oil pressure piezometer, rock sample, for rock sample target body is applied confined pressure, is simulated in confined pressure chamber
It is in stress state in situ；Pressure-releasing chamber includes vacuum pump, concret block, measurement gas pressure sensor and pressure-releasing chamber shell
Body, pressure-releasing chamber, for arranging certain negative pressure value, simulates the negative pressure value caused by pressure release rifle；Pressurization pond includes force (forcing) pump, survey
Amount quasistatic liquid-pressure pick-up and pressurization pond container, pressurization pond is simulated by the pressure that quiet night, post was formed of water in pit shaft；
Explosion chamber includes measuring blast pressure sensor, cylinder, perforating bullet and decompression cylinder, and explosion chamber causes after perforating bullet is ignited
Pressure peak, the blast pressure in analog casing, force (forcing) pump pressurizes to connecting pressurization pond, measures liquid-pressure pick-up
Being placed in the pressure in pressurization pond, pressurization pond is connected by sleeve pipe and oil pipe with explosion chamber, and oil pipe arranges through hole, and perforating bullet is placed in
In oil pipe, and being cased with cylindrical sleeve, after perforating bullet is ignited, gases at high pressure can be entered between oil pipe and sleeve pipe by through hole
Gap, measures blast pressure sensor and is placed in explosion chamber, can measure the pressure in explosion chamber, and explosion chamber is connected with confined pressure chamber, rock
The metallic plate with sleeve pipe same thickness and concrete slab, confined pressure chamber and oiling force (forcing) pump phase it is equipped with between sample target body and perforating bullet
Even, the pressure in confined pressure chamber is by surveying side oil pressure manometry rock sample target body confined pressure, and confined pressure chamber is linked cylinder with pressure-releasing chamber by circle
Being connected, and have closure metallic plate to block, circular connecting cylinder and rock sample target body contact position carry out encapsulation process, vacuum pump with let out
Pressure chamber is connected, and is equipped with measurement gas pressure sensor on pressure-releasing chamber top, is internally provided with concrete block at pressure-releasing chamber, and with
Perforating bullet and rock sample target body are on same axis, it is to avoid pressure-releasing chamber is rushed by metal jet and metal fragment and fractured rock
Break up bad, utilize high-speed camera to pass through transparent window record metal fragment and the fractured rock impact pressure-releasing chamber of pressure-releasing chamber housing
Time process, after whole process terminates, utilize miniature imaging probe to observe the cleaning degree of fractured rock in rock sample target body duct.
The experimentation of this experimental provision includes following step:
(1) sleeve pipe and oil pipe are accessed explosion chamber, make explosion chamber communicate with pressurization pond, after water is injected in pressurization pond, enter
Row pressurization, force value is less than 35MPa；
(2) confined pressure chamber is carried out oiling pressurization, the generally greater than pressure of simulated formation pressure, then pressure can gradually under
Fall, observes pressure change and is in level, and close to strata pressure；
(3) utilize vacuum pump that the pressure of pressure-releasing chamber is arranged predetermined value；
(4) ignite perforating bullet, utilize high-speed camera to observe and initially enter whether material in pressure-releasing chamber is to be carried by fluid
Metal fragment and fragmented rock；
(5) display pressurization pond, explosion chamber, confined pressure chamber and the force value of pressure-releasing chamber, until force value is stable；
(6) utilize miniature imaging probe to observe cleaning degree in duct, determine the relation between pressure differential and cleaning degree.
Experimental provision of the present invention has an advantage in that compared with existing experimental provision
Present invention achieves the Negative Pressure Difference accurately determining dynamic negative-pressure perforation, it is to avoid due to wall reflection cause higher
Detonation pressure peak and piezometer are in pressure-releasing chamber bottom can not reflect the problem forming Negative Pressure Difference, it is ensured that rock Perforation
The reliability that road is cleaned out；Can be with realization petroleum casing pipe and oil pipe gap on the impact of detonation pressure peak and correlation
The impact of the cleaning degree in duct, hole；What Negative Pressure Difference caused shove carries genus chip and fractured rock can be by the envelope after running through
By high-speed camera, stifled metallic plate, can observe that metal fragment and fractured rock rush in the process of pressure-releasing chamber, the most permissible
Observing that causing the medium shoved is gas or liquid, may further be the flow mechanism in perforation tunnel provides science to depend on
According to.
Accompanying drawing explanation
Fig. 1 is the experimental provision schematic diagram that the present invention verifies dynamic negative-pressure perforation tunnel cleaning degree；
In figure: I is confined pressure chamber, II is pressure-releasing chamber, and III is pressurization pond, and IV is explosion chamber, and 1 is oiling force (forcing) pump, and 2 is rock
Sample target body, 3 is rock sample target body cylinder stent, and 4 is confined pressure cavity shell, and 5 is vacuum pump, and 6 is concrete block, and 7 for measuring gas pressure
Force transducer, 8 is pressure-releasing chamber housing, and 9 is connecting cylinder, and 10 is closure metallic plate, and 11 for surveying oil pressure piezometer, and 12 is force (forcing) pump,
13 for measuring quasistatic liquid-pressure pick-up, and 14 is pressurization pond container, and 15 for measuring blast pressure sensor, and 16 is circle
Cylinder, 17 be perforating bullet, 18 is decompression cylinder, 19 be oil pipe, and 20 is sleeve pipe, and 21 is metallic plate, and 22 is concrete slab, and 23 is to explode
Cavity shell, 24 is high-speed camera, and 25 pop one's head in for miniature imaging.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention further illustrates the present invention.
As it is shown in figure 1, apparatus of the present invention are mainly by confined pressure chamber I, pressure-releasing chamber II, pressurization pond III and IV 4 portions of explosion chamber
It is grouped into.Form confined pressure chamber in confined pressure cavity shell 4, in pressure-releasing chamber housing 8, form pressure-releasing chamber, in explosion chamber housing 23, form blast
Chamber, forms pressurization pond in pressurization pond container 14.The waterline in pressurization pond not can exceed that force (forcing) pump 12 is to entering that it pressurizes
At Kou, measure quasistatic liquid-pressure pick-up 13 and measure the pressure in pressurization pond, sleeve pipe 20 and oil pipe 19 and pressurization pond phase
Logical, do not contain water, oil pipe 19 and sleeve pipe 20 in oil pipe 19 and extend in explosion chamber, arrange nearby with perforating bullet 17 phase at oil pipe 19
Through hole is easy to the gases at high pressure of perforating bullet 17 blast generation and is entered into the annular region between sleeve pipe 20 and oil pipe 19.In oil pipe 19
It is provided with a cylinder 16, horizontal positioned perforating bullet 17 in it.One circle with certain rigidity is set outside sleeve pipe 20 and oil pipe 19
Cylindricality decompression cylinder 18, explosion chamber housing is provided above measuring blast pressure sensor 15.Metallic plate 21 and perforating bullet 17 it
Between deposit at regular intervals, and combine closely with concrete slab 22, both are fixed on confined pressure cavity shell 4, carry out close in contact position
Envelope.On confined pressure intracavity rock sample target body 2 horizontal positioned rock sample target body cylinder stent 3, at rock sample target body 2 end, connecting cylinder 9 is invaded
Rock sample one segment distance and closely coupled with closure metallic plate 10, oiling force (forcing) pump 1 leads to confined pressure chamber, and adds the oiling of confined pressure chamber
Pressure, surveys oil pressure piezometer 11 and can show the real-time pressure in confined pressure chamber.Vacuum pump 5 communicates with pressure-releasing chamber, by the pressure in pressure-releasing chamber
Power is reduced to certain value, measures gas pressure sensor 7 and is placed in the upper right corner of pressure-releasing chamber, and the pressure of display pressure-releasing chamber becomes in real time
Change.In pressure-releasing chamber, place one piece of concrete block 6 being right against connecting cylinder, this concrete block and perforating bullet 17, rock sample target body 2 and
Connecting cylinder 9 is on same axis.Metal fragment and fragmented rock can enter into pressure-releasing chamber with certain speed, and may punching
Hit concrete block, to avoid pressure-releasing chamber housing 8 by impact failure.Utilize high-speed camera 24 by pressure-releasing chamber transparent window
Process when record metal fragment and fractured rock impact pressure-releasing chamber.After whole process terminates, utilize miniature imaging probe 24 sight
Examine the cleaning degree of fractured rock in rock sample target body 2 duct.
The experimentation of experimental provision of the present invention has a following step:
(1) sleeve pipe 20 and oil pipe 19 being accessed explosion chamber, make explosion chamber communicate with pressurization pond, water is injected in pressurization pond
After, to pressurize, force value is less than 35MPa.
(2) confined pressure chamber is carried out oiling pressurization, the generally greater than pressure of simulated formation pressure, then pressure can gradually under
Fall, observes pressure change and is in level, and close to strata pressure.
(3) (the pressure 20MPa in pond of generally less than pressurizeing is i.e. to utilize vacuum pump 5 that the pressure of pressure-releasing chamber arranges predetermined value
Can)
(4) ignite perforating bullet 17, utilize high-speed camera 24 to observe and initially enter whether material in pressure-releasing chamber is by fluid
Carry metal fragment and fragmented rock.
(5) display pressurization pond, explosion chamber, confined pressure chamber and the force value of pressure-releasing chamber, until force value is stable.
(6) utilize cleaning degree in miniature imaging probe 25 observation duct, determine the pass between pressure differential and cleaning degree
System.
Claims (2)
1. the experimental provision verifying dynamic negative-pressure perforation tunnel cleaning degree, it is characterised in that: include confined pressure chamber (I), let out
Pressure chamber (II), pressurization pond (III) and explosion chamber (IV)；Confined pressure chamber includes oiling prelum (1), rock sample target body (2), rock sample target
Body cylinder stent (3), confined pressure cavity shell (4), closure metallic plate (10) and survey oil pressure piezometer (11), confined pressure chamber is for rock sample
Target body applies confined pressure, and simulation rock sample is in stress state in situ；Pressure-releasing chamber includes vacuum pump (5), concret block (6), surveys
Amount gas pressure sensor (7) and pressure-releasing chamber housing (8), pressure-releasing chamber is for arranging certain negative pressure value, and simulation is drawn by pressure release rifle
The negative pressure value risen；Pressurization pond includes force (forcing) pump (12), measures quasistatic liquid-pressure pick-up (13) and pressurization pond container
(14), pressurization pond is simulated by the pressure that quiet night, post was formed of water in pit shaft；Explosion chamber include measure blast pressure sensor (15),
Cylinder (16), perforating bullet (17) and decompression cylinder (18), explosion chamber causes pressure peak, analog casing after perforating bullet is ignited
Interior blast pressure, force (forcing) pump (12) pressurizes to connecting pressurization pond, measures liquid-pressure pick-up and puts (13) in pressurization
The pressure in pond (III), pressurization pond (III) is connected by sleeve pipe (20) and oil pipe (19) with explosion chamber (IV), and oil pipe arranges logical
Hole, perforating bullet is placed in oil pipe, and is cased with cylindrical sleeve, and after perforating bullet is ignited, gases at high pressure can enter oil by through hole
Pipe and the gap of sleeve pipe, measure blast pressure sensor (15) and be placed in explosion chamber, can measure the pressure in explosion chamber, explosion chamber
(IV) it is connected with confined pressure chamber (I), between rock sample target body (2) and perforating bullet (17), is equipped with the metallic plate (21) with sleeve pipe same thickness
With concrete slab (22), confined pressure chamber (I) is connected with oiling force (forcing) pump (1), and the pressure of confined pressure chamber (I) is by surveying side oil pressure piezometer
(11) measuring rock sample target body (2) confined pressure, confined pressure chamber (I) is linked cylinder (9) with pressure-releasing chamber (II) by circle and is connected, and have closure metal
Plate (10) blocks, and circular connecting cylinder (9) carries out encapsulation process, vacuum pump (5) and pressure-releasing chamber with rock sample target body (2) contact position
(II) it is connected, and is equipped with measurement gas pressure sensor (7) on pressure-releasing chamber (II) top, be internally provided with mixed at pressure-releasing chamber (II)
Solidifying soil block (6), and be on same axis with perforating bullet (17) and rock sample target body (2), it is to avoid metal jet and metal fragment
With the fractured rock impact failure to pressure-releasing chamber, high-speed camera (24) is utilized to be remembered by the transparent window of pressure-releasing chamber housing (8)
Process when record metal fragment and fractured rock impact pressure-releasing chamber, after whole process terminates, utilizes miniature imaging probe (25) to see
Examine the cleaning degree of fractured rock in rock sample target body (2) duct.
A kind of experimental provision verifying dynamic negative-pressure perforation tunnel cleaning degree the most according to claim 1, its feature exists
Following step is included in: the experimentation of this experimental provision:
(1) sleeve pipe (20) and oil pipe (19) being accessed explosion chamber, make explosion chamber communicate with pressurization pond, water is injected in pressurization pond
After, to pressurize, force value is less than 35MPa；
(2) confined pressure chamber carrying out oiling pressurization, the generally greater than pressure of simulated formation pressure, then pressure can be gradually reduced, and sees
Examine pressure change and be in level, and close to strata pressure；
(3) utilize vacuum pump (5) that the pressure of pressure-releasing chamber is arranged predetermined value；
(4) ignite perforating bullet (17), utilize high-speed camera (24) to observe and initially enter whether material in pressure-releasing chamber is by fluid
Carry metal fragment and fragmented rock；
(5) display pressurization pond, explosion chamber, confined pressure chamber and the force value of pressure-releasing chamber, until force value is stable；
(6) utilize miniature imaging probe (25) to observe cleaning degree in duct, determine the relation between pressure differential and cleaning degree.
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| CN201610523169.4A CN106198543B (en) | 2016-07-04 | 2016-07-04 | A kind of experimental provision of verification dynamic negative-pressure perforation tunnel cleaning degree |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2658149C1 (en) * | 2017-05-29 | 2018-06-19 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Simulator the powder pressure accumulator |
| CN109357807A (en) * | 2018-09-17 | 2019-02-19 | 北京理工大学 | Pressure testing system and method in a kind of ultrahigh speed penetration Under Concrete target |
| CN110656913A (en) * | 2019-10-29 | 2020-01-07 | 大庆金祥寓科技有限公司 | Method for contrast test of well completion effect of perforation process |
| CN110905492A (en) * | 2019-11-06 | 2020-03-24 | 大庆油田有限责任公司 | Ultrahigh-pressure hydraulic perforation ground comprehensive mold experimental device |
| CN114233269A (en) * | 2021-12-02 | 2022-03-25 | 川南航天能源科技有限公司 | Negative pressure value optimization method based on sandstone pressure-resistant perforation test |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817718A (en) * | 1987-09-08 | 1989-04-04 | Baker Oil Tools, Inc. | Hydraulically activated firing head for well perforating guns |
| CN102301089A (en) * | 2008-12-01 | 2011-12-28 | 地球动力学公司 | Method For The Enhancement Of Dynamic Underbalanced Systems And Optimization Of Gun Weight |
| CN102748007A (en) * | 2012-07-25 | 2012-10-24 | 中国科学技术大学 | Well testing analytical method and device |
| CN202970656U (en) * | 2012-12-05 | 2013-06-05 | 西安物华巨能爆破器材有限责任公司 | Dynamic negative pressure perforating device |
| CN105335600A (en) * | 2014-08-08 | 2016-02-17 | 中国科学技术大学 | Method and system for obtaining shear-thinning characteristic of polymer solution in stratum |
-
2016
- 2016-07-04 CN CN201610523169.4A patent/CN106198543B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817718A (en) * | 1987-09-08 | 1989-04-04 | Baker Oil Tools, Inc. | Hydraulically activated firing head for well perforating guns |
| CN102301089A (en) * | 2008-12-01 | 2011-12-28 | 地球动力学公司 | Method For The Enhancement Of Dynamic Underbalanced Systems And Optimization Of Gun Weight |
| CN102748007A (en) * | 2012-07-25 | 2012-10-24 | 中国科学技术大学 | Well testing analytical method and device |
| CN202970656U (en) * | 2012-12-05 | 2013-06-05 | 西安物华巨能爆破器材有限责任公司 | Dynamic negative pressure perforating device |
| CN105335600A (en) * | 2014-08-08 | 2016-02-17 | 中国科学技术大学 | Method and system for obtaining shear-thinning characteristic of polymer solution in stratum |
Non-Patent Citations (2)
| Title |
|---|
| KAREN BYBEE ET AL.: "Comparison of Balanced and Underbalanced Perforating", 《JOURNAL OF PETROLEUM TECHNOLOGY》 * |
| 曲忠仁等: "动态负压射孔孔道压实带碎屑清洗输送", 《固体力学学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2658149C1 (en) * | 2017-05-29 | 2018-06-19 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Simulator the powder pressure accumulator |
| CN109357807A (en) * | 2018-09-17 | 2019-02-19 | 北京理工大学 | Pressure testing system and method in a kind of ultrahigh speed penetration Under Concrete target |
| CN110656913A (en) * | 2019-10-29 | 2020-01-07 | 大庆金祥寓科技有限公司 | Method for contrast test of well completion effect of perforation process |
| CN110656913B (en) * | 2019-10-29 | 2022-05-17 | 大庆金祥寓科技有限公司 | Method for contrast test of well completion effect of perforation process |
| CN110905492A (en) * | 2019-11-06 | 2020-03-24 | 大庆油田有限责任公司 | Ultrahigh-pressure hydraulic perforation ground comprehensive mold experimental device |
| CN114233269A (en) * | 2021-12-02 | 2022-03-25 | 川南航天能源科技有限公司 | Negative pressure value optimization method based on sandstone pressure-resistant perforation test |
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| CN106198543B (en) | 2018-08-21 |
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