CN106483054A - A kind of column rock core compacting measures device - Google Patents

A kind of column rock core compacting measures device Download PDF

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Publication number
CN106483054A
CN106483054A CN201510542201.9A CN201510542201A CN106483054A CN 106483054 A CN106483054 A CN 106483054A CN 201510542201 A CN201510542201 A CN 201510542201A CN 106483054 A CN106483054 A CN 106483054A
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CN
China
Prior art keywords
rock core
flowtube
pipeline
rubber tube
clamper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510542201.9A
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Chinese (zh)
Inventor
孙宝泉
张以根
许坚
王胜
李奋
于春磊
贾丽华
张礼臻
杨海博
张民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Exploration and Development Research Institute of Sinopec Henan Oilfield Branch Co
Original Assignee
China Petroleum and Chemical Corp
Exploration and Development Research Institute of Sinopec Henan Oilfield Branch Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Exploration and Development Research Institute of Sinopec Henan Oilfield Branch Co filed Critical China Petroleum and Chemical Corp
Priority to CN201510542201.9A priority Critical patent/CN106483054A/en
Publication of CN106483054A publication Critical patent/CN106483054A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a kind of column rock core compacting measures device, suppress clamper, flowtube including the constant pressure pump being sequentially connected from A-P, rock core, between described rock core compacting clamper, flowtube, buffer container is connected by a threeway, described buffer container connects vacuum pump also by single pipeline.Described rock core suppresses the rubber tube that clamper includes outer tube and is arranged on outer barrel, is provided with back-up sand molding column rock core in rubber tube, has plug in the axial two-port blocking of rubber tube.Described outer tube radial direction opens up fluid intake and connects constant pressure pump by pipeline, and described rubber tube axial end opens up fluid issuing and passes through pipeline connection flow buret.Solve current petroleum industry reservoir simulation experiment, especially in heavy crude reservoir thermal recovery simulation experiment, sample not molding, the few problem of quantity of sampling quantity.It is capable of the permeability of accurate simulation reservoir different layers position and identical layer position different parts simultaneously.

Description

A kind of column rock core compacting measures device
Technical field
The present invention relates to the experiment of petroleum industry reservoir simulation;Specifically a kind of column rock core compacting measures device.
Background technology
At present, in Development of Viscous Crude Oil experimentation, various physical simulation experiments are carried out through conventional column rock core.But During heavy crude reservoir coring, the rock core that takes out from pit shaft, loose and not molding is it is impossible to the column rock core drilling through out molding enters The related simulation experiment of row heavy crude reservoir.Coring well coring length is short simultaneously, coring limited amount, particularly sealed coring Well coring quantity is few, and test event is many, and the related simulation experiment of viscous crude is in great demand to rock core.Make more viscous crude Physical simulation experiment is using the column rock core of artificial compacting.We have invented one kind for this and reservoir dry sand is pressed into column rock The device of the heart, solves above technical problem.
Through retrieval, do not find with the application structure identical open source literature.
Content of the invention
It is an object of the invention to provide a kind of column rock core compacting measures device, solve current petroleum industry reservoir simulation Experiment, especially in heavy crude reservoir thermal recovery simulation experiment, samples not molding, the few problem of quantity of sampling quantity.It is simultaneous for oil Hide that reservoir heterogeneity is strong, device adjusts the column rock core that confined pressure can suppress different permeabilities, can accurate simulation reservoir not Permeability with layer position and identical layer position different parts.
In order to reach above-mentioned purpose, present invention employs following technical scheme, a kind of column rock core compacting measures device, bag Include the constant pressure pump being sequentially connected from A-P, rock core compacting clamper, flowtube, described rock core compacting clamper, flow Pass through a threeway between pipe and connect buffer container, described buffer container connects vacuum pump also by single pipeline.
Described rock core suppresses the rubber tube that clamper includes outer tube and is arranged on outer barrel, is provided with back-up sand in rubber tube Molding column rock core, has plug in the axial two-port blocking of rubber tube.
Described outer tube radial direction opens up fluid intake and connects constant pressure pump by pipeline, and described rubber tube axial end opens up fluid issuing By pipeline connection flow buret.
Described flowtube be divided into from top to bottom three from thin to three thick pipeline sections, the least significant end of bottom pipeline section has the water surface Line, arranges tank below flowtube, tank is filled distilled water, the height of adjustment flowtube, makes the water surface curve of flowtube In water surface alignment.
It is provided with for the motionless fixed support of firm discharge pipe above described flowtube, rubber is passed through in described flowtube upper end Flexible pipe is connected with threeway.
It is respectively arranged with pressure gauge, valve on described constant pressure pump and the rock core compacting interconnective pipeline of clamper.
Described buffer container is respectively provided with valve on the pipeline being connected with threeway and vacuum pump.
Compared to prior art, the invention has the advantages that:
The compacting of this column rock core measures device and also includes column rock core compression module, and this compression module includes constant pressure pump, pressure Table and rock core compacting clamper etc..After filling distilled water in constant pressure pump, set the pressure of constant pressure pump.Constant pressure pump is distilled water Get in core holding unit cylinder, pressure is applied to the rubber tube in clamper, pressure is acted on rock core by rubber tube, real Now confined pressure is applied to rock core.Whether changed by pressure in pressure gauge detecting system.It is bigger with constant pressure pump setting pressure, The confined pressure that rock core is applied is bigger, and it is tightr that rock core is compacted, and the penetrating power of rock core is less, and air permeability is less.
The compacting of this column rock core measures device and also includes the air permeability that column rock core measures module mensure rock core.This module Including vacuum pump, buffer container, flowtube, tank, fixed support etc..The built-in full water of tank.Vacuum pump is water from water After being extracted into flowtube top in groove, close valve, allow the water in flowtube freely to fall.Flow through with stopwatch metering distilled water The time of different tube diameters.Increase the setting pressure of constant pressure pump, measure, with stopwatch, the time that distilled water flows through again.Use experience Formula is calculated the air permeability under different pressing pressures.
Column rock core compacting in the present invention measures device and solves current petroleum industry reservoir simulation experiment, especially viscous crude In oil reservoir thermal recovery simulation experiment, sample not molding, the few problem of quantity of sampling quantity.It is simultaneous for reservoir Heterogeneity strong, Device adjusts confined pressure and can suppress the column rock core of different permeabilities, can accurate simulation reservoir different layers position and identical layer position not Permeability with position.Substantially increase the similarity of laboratory experiment condition and scene, thus enhance experimental result can By property and reference value.
Brief description
Fig. 1 is a kind of structural representation of column rock core compacting mensure device of the present invention;
Fig. 2 suppresses the structural representation of clamper for rock core;
Fig. 3 is the structural representation of flowtube.
In figure:1- constant pressure pump, 2- rock core compacting clamper, 3- vacuum pump, 5- buffer container, 6- flowtube, 7- tank, 8- pressure gauge, 4,9,10- valve, 11- threeway, 12- rubber flexible pipe, 13- fixed support.
201- plug, 202- rubber tube, 203- back-up sand molding column rock core, 204- outer tube, 205- plug, 206- fluid Entrance.
Specific embodiment
Detailed description for the present invention and technology contents, cooperation brief description is as follows, but accompanying drawing only provides with reference to and says Bright be used, be not used for the present invention is any limitation as.
According to Fig. 1, embodiment 1:A kind of column rock core compacting measures device, including the constant voltage being sequentially connected from A-P Pump 1, rock core compacting clamper 2, flowtube 6, pass through a threeway 11 between described rock core compacting clamper, flowtube Connect buffer container 5, described buffer container connects vacuum pump 3 also by single pipeline.Described rock core suppresses clamper bag Include outer tube 204 and the rubber tube 202 being arranged on outer barrel, in rubber tube, be provided with back-up sand molding column rock core 203, There is plug 201,205 in the axial two-port blocking of rubber tube.Described outer tube radial direction opens up fluid intake 206 and passes through pipeline Connect constant pressure pump, described rubber tube axial end opens up fluid issuing and passes through pipeline connection flow buret.Described flowtube from upper and Under be divided into three from thin to three thick pipeline sections, the least significant end of bottom pipeline section has water surface curve, arranges tank below flowtube, Tank is filled distilled water, the height of adjustment flowtube, so that the water surface curve of flowtube is alignd in the water surface.
Embodiment 2:On the basis of embodiment 1, it is provided with above described flowtube for motionless the consolidating of firm discharge pipe Fixed rack 13, described flowtube upper end is connected with threeway by rubber flexible pipe 12.Described constant pressure pump suppresses clamper with rock core Pressure gauge 8, valve 9 are respectively arranged with interconnective pipeline.Described buffer container is being connected with threeway and vacuum pump Valve 10,4 is respectively provided with the pipeline connecing.
Flowtube 6 from thin to rough segmentation be 1,2,3 three pipeline sections.Pipeline section 1 is divided into 01 to arrive F pipeline section and 01 to E pipeline section; Pipeline section 2 is divided into 02 to arrive D pipeline section and 02 to C pipeline section;Pipeline section 3 is divided into 03 to arrive B pipeline section and 03 to A pipeline section.Pipeline section 3 Least significant end has water surface curve.
Step one:Open constant pressure pump 1 to switch, constant pressure pump 1 is filled distilled water, open valve 9, by 3mm pipeline from rock Distilled water is squeezed into the annular space in the middle of rubber tube 202 and outer tube 204 and is full of by the fluid intake 206 that the heart suppresses clamper 2 Distilled water.The back-up sand filling molding column rock core 203 is loaded in rubber tube 202.Screw two ends plug 201 and plug 205, make plug 201 and plug 205 be close to back-up sand molding column rock core 203.
Step 2:Set constant pressure pump 1 pressure as 0.5MPa, make rubber tube 202 apply confined pressure to back-up sand molding column rock core 203. And keep constant voltage to suppress more than 2 hours.
Step 3:Tank 7 is filled distilled water.The height of adjustment flowtube 6, makes the water surface curve of flowtube 6 align in the water surface. Fix fixed support 13, keep flowtube 6 position motionless.
Step 4:Open vacuum pump 3, open valve 4, slowly open valve 10, make the distilled water inhalation flow in tank 7 In pipe 6.When the distilled water water surface reaches flowtube 6 top, close valve 10.At this moment, the distilled water meeting in flowtube 6 Slowly fall.With stopwatch respectively the distilled water water surface in pipeline section 1 time from 01 to F, from 01 to E, in pipeline section 2 from 02 to D, Time from 02 to C, in the time from 03 to B, from 03 to A for the pipeline section 3.And therefrom choose Dose times pipe relatively placed in the middle Section and Dose times are worth as calculating.
Step 5:According to Darcy formula:K=B μgL/At, is calculated the air permeability of column rock core.
The computational constant of B flowtube pipeline section;
μgThe viscosity of air under experimental temperature, unit is mpas (mPa s);
The length of L column rock core, unit is centimetre (cm);
The cross-sectional area of A column rock core, unit is square centimeter (cm2);
The time of t stopwatch metering, unit is the second (s).
Step 6:Incrementally increase the setting pressure of constant pressure pump 1, make rubber tube 2 apply confined pressure to back-up sand molding column rock core 3. And keep each constant voltage to suppress more than 2 hours.Repeat step four and step 5.Can get the column of different air permeabilities Rock core.
Following table is the experimental data of 22 embodiments of the 17 mouthfuls of wells being recorded with the present invention.
The column rock core compacting of the present invention measures device, and the dry sand that available reservoir is cleaned or quartz sand accurately simulate reservoir difference Layer position and the permeability feature of identical layer position different parts.When solving heavy crude reservoir coring, coring well coring length is short, Coring limited amount and rock core is loose and not molding is it is impossible to drill through out the problem of the column rock core of molding.Especially for close Close that coring well coring quantity is few, test event is many, and the problem that the related simulation experiment of viscous crude is in great demand to rock core. Make more viscous crude physical simulation experiment using the column rock core of artificial compacting.The present invention substantially increases laboratory experiment condition With live similarity, thus enhancing reliability and the reference value of experimental result.
The foregoing is only presently preferred embodiments of the present invention, be not used to limit the scope of the claims of the present invention, other use this The equivalence changes of bright patent spirit, all should all belong to the scope of the claims of the present invention.

Claims (7)

1. a kind of column rock core compacting measures device, it is characterized in that, suppress clamper, flowtube including the constant pressure pump being sequentially connected from A-P, rock core, between described rock core compacting clamper, flowtube, buffer container is connected by a threeway, described buffer container connects vacuum pump also by single pipeline.
2. a kind of column rock core compacting according to claim 1 measures device, it is characterized in that, described rock core suppresses the rubber tube that clamper includes outer tube and is arranged on outer barrel, is provided with back-up sand molding column rock core in rubber tube, has plug in the axial two-port blocking of rubber tube.
3. a kind of column rock core compacting according to claim 2 measures device it is characterised in that described outer tube radial direction opens up fluid intake connects constant pressure pump by pipeline, and described rubber tube axial end opens up fluid issuing and passes through pipeline connection flow buret.
4. a kind of column rock core compacting according to claim 1 measures device, it is characterized in that, described flowtube be divided into from top to bottom three from thin to three thick pipeline sections, the least significant end of bottom pipeline section has water surface curve, tank is set below flowtube, tank is filled distilled water, the height of adjustment flowtube, so that the water surface curve of flowtube is alignd in the water surface.
5. a kind of column rock core compacting according to claim 4 measures device it is characterised in that being provided with for the motionless fixed support of firm discharge pipe above described flowtube, described flowtube upper end is connected with threeway by rubber flexible pipe.
6. a kind of column rock core compacting according to claim 1 measures device it is characterised in that being respectively arranged with pressure gauge, valve on described constant pressure pump and the rock core compacting interconnective pipeline of clamper.
7. a kind of column rock core compacting according to claim 1 measures device it is characterised in that described buffer container is respectively provided with valve on the pipeline being connected with threeway and vacuum pump.
CN201510542201.9A 2015-08-28 2015-08-28 A kind of column rock core compacting measures device Pending CN106483054A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107703039A (en) * 2017-09-22 2018-02-16 中国石油大学(北京) Rock permeability measurement apparatus
CN108956425A (en) * 2018-07-23 2018-12-07 长安大学 A kind of device and method measuring extra-viscous oil reservoir initial water permeability
CN109781481A (en) * 2018-12-20 2019-05-21 中国石油天然气股份有限公司 A kind of cartridge type core model manufacturing device

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Publication number Priority date Publication date Assignee Title
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CN101852714A (en) * 2010-04-30 2010-10-06 中国石油大学(北京) Measuring system and method of low-speed non-linear seepage parameters
CN102435537A (en) * 2011-11-21 2012-05-02 中国石油大学(华东) Measuring device for gas permeability of coal rock core
CN103616322A (en) * 2013-11-25 2014-03-05 中国石油天然气股份有限公司 Non-steady state detection device and non-steady state detection method for permeability of low-permeability rock
CN104697913A (en) * 2015-03-17 2015-06-10 中国石油大学(华东) Testing device and testing method for gas permeability of compacted sandstone

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Publication number Priority date Publication date Assignee Title
CN1865913A (en) * 2006-06-09 2006-11-22 南通市飞宇石油科技开发有限公司 Rock gas permeability detector
CN101852714A (en) * 2010-04-30 2010-10-06 中国石油大学(北京) Measuring system and method of low-speed non-linear seepage parameters
CN102435537A (en) * 2011-11-21 2012-05-02 中国石油大学(华东) Measuring device for gas permeability of coal rock core
CN103616322A (en) * 2013-11-25 2014-03-05 中国石油天然气股份有限公司 Non-steady state detection device and non-steady state detection method for permeability of low-permeability rock
CN104697913A (en) * 2015-03-17 2015-06-10 中国石油大学(华东) Testing device and testing method for gas permeability of compacted sandstone

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107703039A (en) * 2017-09-22 2018-02-16 中国石油大学(北京) Rock permeability measurement apparatus
CN108956425A (en) * 2018-07-23 2018-12-07 长安大学 A kind of device and method measuring extra-viscous oil reservoir initial water permeability
CN109781481A (en) * 2018-12-20 2019-05-21 中国石油天然气股份有限公司 A kind of cartridge type core model manufacturing device

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Application publication date: 20170308