CN105239978A - Sand filling model pipe - Google Patents
Sand filling model pipe Download PDFInfo
- Publication number
- CN105239978A CN105239978A CN201510726409.6A CN201510726409A CN105239978A CN 105239978 A CN105239978 A CN 105239978A CN 201510726409 A CN201510726409 A CN 201510726409A CN 105239978 A CN105239978 A CN 105239978A
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- column pipe
- sandpack column
- main body
- plug
- runddichtringo
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Abstract
The invention provides a sand filling model pipe. The sand filling model pipe comprises a main body, plugs, pressing caps, an inlet and an outlet, wherein the main body is a hollow pipe, and is provided with a sampling port and a pressure measuring port; the plugs are positioned at the two ends of the main body, and are connected with the main body through screws; the pressing caps are fixedly connected with the plugs; the inlet and the outlet are positioned at the two ends of the sand filling model pipe; the inner wall of the main body is uniform and consistent in roughness, and is an electrospark roughened inner wall; the roughness of the inner wall of the main body is greater than Ra12.5; the plugs are double-ring sealing plugs; and a temperature sensing heating device is arranged in a shell of the main body, and is fixedly connected with the main body. The sand filling model pipe can effectively prevent the streaming phenomenon between sand particles and the inner wall in the experimental process, so that the precision of experimental results is guaranteed, and the tightness is good; and the sand filling model pipe is provided with the temperature sensing heating device, so that the cleaning is facilitated, and the accuracy of experimental conditions can be guaranteed.
Description
Technical field
The present invention relates to microbial oil displacement physical simulation experiment device technical field, particularly relate to a kind of sandpack column pipe.
Background technology
In the recovery ratio experiment of petroleum industry, when carrying out the Physical Experiment of microbial oil displacement indoor, usually use sandpack column pipe.When testing, need to detect along journey and outlet production fluid to analyze and pressure monitoring, when to carry out in model pipe along the Adsorption law of the journey residual oil saturation regularity of distribution and quartz sand, require the quartz sand sample accurately got along the formation water of Cheng Hanyou and residual oil in model pipe.Therefore, can not there is channelling in the quartz sand in sandpack column pipe, and this has just had higher requirement to the roughness on sandpack column inside pipe wall surface.
The sandpack column inside pipe wall of prior art adopts the stainless steel of lathe process, machining accuracy IT8-IT7, roughness Ra 1.6, and roughness is less, and in experimentation, quartz sand easily leaps up to flow affects experimental result.
Such as a kind of sandpack column disclosed in Chinese patent CN2874021Y, comprise multiple straight tube and multiple termination, be threaded between termination and straight tube, radial seal and end face seal are established in junction, the inwall of whole sandpack column pipe is the uniform flour milling of hacking, wherein package experiment quartz sand, straight tube sets up multiple pressure tap and multiple thief hole separately, and multiple straight tube is in parallel or connected by bend pipe and bend/straight joint.This fill out sand tube adopts general steel to make, and inwall hacking degree is less, and quartz sand is easy stream of leaping up in fill out sand tube.
Such as a kind of sandpack column pipe disclosed in Chinese patent CN202707033U again, it comprises model pipe joint, plug, body, coupling part, short circuit, pressure tap and thief hole composition, body is connected to form by multistage short circuit, the two ends of body are provided with plug and model pipe joint, the centre of body is provided with coupling part, and body is provided with pressure tap and thief hole.Plug is made up of O type circle, metal screen, pad and base, and the side of base is provided with metal screen, pad, and base is provided with two orthogonal guiding gutters, is uniformly distributed multiple circular hole in pad.Coupling part is made up of clip sheet, ring gasket and bolt, and ring gasket is installed between body and clip sheet, and bolt connects two panels clip sheet.Pressure tap and thief hole internal diameter are 1mm, and are provided with metal screen.This sandpack column pipe adopts the method for short circuit, and seam more easily causing leaks in sandpack column pipe experimentation, and sandpack column inside pipe wall hacking degree is less, and degree of roughness is lower, and during test, the quartz sand of sandpack column pipe inside is easily leapt up stream.
Summary of the invention
Easily to leap up compared with low quartz sand the problem of stream for overcoming the sandpack column inside pipe wall roughness that exists in prior art, the invention provides a kind of sandpack column pipe.
A kind of technical scheme of sandpack column pipe is: comprise body, plug, pressure cap, entrance and exit, described body is hollow tube, described body is provided with sample tap and pressure tap, described plug is positioned at body two ends, described plug is connected with described body screw, described pressure cap is fixedly connected with described plug, described entrance and described outlet are positioned at sandpack column pipe two ends, the inner wall roughness uniformity of described body, the inwall of described body is electric spark hacking inwall, the inner wall roughness of described body is greater than Ra12.5, described plug is two circle seal plugs, temperature-sensitive heater is provided with in the housing of described body, described temperature-sensitive heater is fixedly connected with described body.
Further, described plug comprises O RunddichtringO, pad, screen pack, the screw be connected with described body and plug main body, and described pad and described screen pack are positioned at inside described plug main body.
Further, described plug main body is provided with two orthogonal guiding gutters 1 and guiding gutter 2.
Further, described pad is evenly distributed with at least 10 circular holes.
Further, described 0 RunddichtringO is positioned at plug and body screw junction.
Further, described O RunddichtringO is two circle O RunddichtringOs, and described O RunddichtringO comprises O RunddichtringO main body, inner ring and outer ring, and described O RunddichtringO main body, inner ring and outer ring are one-body molded, and described inner ring is fine and closely woven abscess inner ring.
Further, described temperature-sensitive heater comprises heater strip and thermometric controller, and described heater strip is electrically connected with described thermometric controller.
Further, described entrance, outlet, sample tap and pressure tap interior diameter are 1mm, and described entrance, outlet, sample tap and pressure tap are the via openings being provided with multiple filtration net.
Further, described sample tap has 4, described each sample tap interval 200mm; Described pressure tap has 4, described each pressure tap interval 200mm.
Further, described pressure cap is connected with body screw.
Compared with prior art, the invention has the beneficial effects as follows:
(1) this sandpack column tube body inner wall roughness uniformity, the hacking pit rule of inner wall surface repeats, and the inner wall roughness of body is greater than Ra12.5, can prevent from leaping up between sand grains and inwall in experimentation flow phenomenon.
(2) the O RunddichtringO of this sandpack column pipe is two circle O RunddichtringOs, inner ring is fine and closely woven abscess inner ring, and gravel can be prevented to be stuck in sealing ring lower end affects sealing, and outer ring is conventional seals loop-shaped, outer ring can guarantee to seal with contact surface all the time, thus guarantees good sealing effectiveness.
(3) this sand-filling tube model pipe is provided with sample tap and pressure tap every 200mm, and entrance and exit part is equipped with pressure tap and sample tap, fill out sand tube inner case in whole experimentation can be monitored, make experimental result more accurate.
(4) entrance of this sandpack column pipe, outlet, pressure tap, sample tap and each connecting portion are equipped with metal filter screen, and preventing inner quartz sand from flowing out affects experimental conditions.
(5) this sandpack column pipe is columnar structured, and the overall steel that adopt make, weak acid and alkali resistance corrodes, and resistance toly to beat, be bonded on inwall because having a large amount of sand grains after experiment terminates, need, by beaing the sand grains removing that will be attached on inwall, so sandpack column pipe must resistance toly beat, to be just not easy distortion.
(6) this sandpack column pipe is provided with temperature-sensitive heater, temperature-sensitive heater can coordinate hair dryer to remove clean by the gravel being attached to inwall on the one hand, be beneficial to clean sandpack column pipe, temperature-sensitive heater can control the temperature in sandpack column pipe in real time on the other hand, guarantee the environment of testing, improve the accuracy of experiment.
Accompanying drawing explanation
Fig. 1 is sandpack column pipe overall schematic;
Fig. 2 is the pad schematic diagram of sandpack column pipe;
Fig. 3 is the lateral view of the O sealing ring of sandpack column pipe.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1, Fig. 2 and Fig. 3 is the structural representation of a kind of sandpack column pipe in the present invention in specific embodiment, comprise body 1, plug 4, pressure cap 3, entrance 8 and outlet 9, body 1 is hollow tube, body 1 is provided with sample tap 6 and pressure tap 7, plug 4 is positioned at body 1 two ends, plug 4 is connected with body 1 screw, pressure cap 3 is fixed on plug 4 one weeks, entrance 8 and outlet 9 are positioned at sandpack column pipe two ends, the inwall 2 roughness uniformity of body 1, the inwall of body 1 is electric spark hacking inwall, the inner wall roughness of body 1 is greater than Ra12.5, plug 4 is two circle seal plugs, temperature-sensitive heater 17 is provided with in the housing of body 1, temperature-sensitive heater 17 is fixedly connected with body 1.This sandpack column pipe entirety adopts steel to make, good corrosion resistance, and not yielding.
The material of inwall 2 is the steel plate adopting electric spark roughening techniques hacking to cross, and the surface roughness of this steel plate has good repeatability, for the generation of the flow phenomenon that can well prevent from sandpack column pipe leaping up.The basis of electric spark texturing is arc erosion technique, and the conducting particles that power generator is connected in Medium Oil form a dipolar electric bridge.And the charging current that this electric bridge produces intermittence acts on roll, by roller surface melting, reach the effect of texturing.On discharge channel, form a kind of byproduct of gaseous state when electrode and roll electric discharge, when after the degree that gasification reaches certain, molten metal is dished out by bubble eruption, washed away by hacking oil, roller surface forms electric discharge pit, and electric bridge is disintegrated simultaneously, completes the hacking on surface.
As shown in Figure 1: plug 4 comprises O RunddichtringO 5, pad 11, screen pack 10, the screw 12 be connected with body 1 and plug main body 13, and pad 11 and screen pack 10 are positioned at inside described plug main body 13.Plug main body 13 is provided with two orthogonal guiding gutters 1 and guiding gutter 2 16.Pressure cap 3 pushes down plug 4, and pressure cap 3 is connected with body 1 nut, and plug 4 pairs of sandpack column pipes play sealing function.Plug 4 inner ring is provided with annular groove, body 1 corresponding position is provided with annular protrusion, and O RunddichtringO 5 is positioned at annular groove, and plug 4 outer ring is clamping ring, adopt nut to connect to be connected with body 1, arranging of screen pack 10 can prevent the quartz sand in sandpack column pipe from spilling impact experiment accuracy.
As shown in Figure 2: pad 11 is evenly distributed with at least 10 circular holes 14.Pad can strengthen sealing effectiveness, and reduces the wearing and tearing of pipe fitting junction.
As shown in Figure 1: 0 RunddichtringO 5 is positioned at plug 4 and body 1 screw junction.O RunddichtringO 5 is two circle O RunddichtringOs, and it is one-body molded that O RunddichtringO 5 comprises O RunddichtringO main body 52, inner ring 51 and outer ring 53, O RunddichtringO main body 52, inner ring 51 and outer ring 53, and inner ring 51 is fine and closely woven abscess inner ring.The annular protrusion outer ring of body 1 and the outer ring 53 of 0 RunddichtringO 5.Inner ring 51 is fine and closely woven abscess inner ring, and gravel can be prevented to be stuck in sealing ring lower end affects sealing, and outer ring 53 is conventional seals loop-shaped, and outer ring can guarantee to seal with contact surface all the time, thus guarantees good sealing effectiveness.
As shown in Figure 1: temperature-sensitive heater 17 comprises heater strip 18 and thermometric controller 19, heater strip 18 is electrically connected with thermometric controller 19, temperature-sensitive heater 17 can be started after experiment terminates, set safe temperature, utilize heater strip 18 heater body inwall, drying damp sand coordinates hair-dryer can remove clean by the quartz sand that inwall adheres to, and when cleaning sandpack column pipe, temperature-sensitive heater also can be used for drying sandpack column pipe.And thermometric controller 19 can, according to measuring the inwall real time temperature obtained, prevent temperature over-range from damaging instrument.This is external when carrying out some isothermal experiments, and temperature-sensitive heater 17 also can be utilized to keep body interior temperature constant.
As shown in Figure 1: body 1 is of a size of Φ 25 × 1000mm.Entrance 8, outlet 9, sample tap 6 and pressure tap 7 interior diameter are 1mm, and entrance 8, outlet 9, sample tap 6 and pressure tap 7 are all provided with multiple filtration net.The interior diameter of entrance 8, outlet 9, sample tap 6 and pressure tap 7 is 1mm, and less internal diameter can guarantee the situation stable and consistent of sandpack column pipe inside.
As shown in Figure 1: sample tap 6 has 4, each sample tap 6 interval 200mm; Pressure tap 7 has 4, each pressure tap interval 200mm.Pressure cap 3 is connected with body 1 screw.The interval of pressure tap 7 and sample tap 6 is consistent, and is provided with multiple, can guarantee to monitor real-time change in sandpack column pipe, to guarantee the accuracy of testing.Adopt 316L steel then can prevent from desanding process, knock the sandpack column pipe distortion caused.Pressure cap 3 adopts screw to be connected with body 1, more convenient during dismounting, can ensure good sealing again.
Above-mentioned explanation illustrate and describes the preferred embodiments of the present invention, as previously mentioned, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (10)
1. a sandpack column pipe, comprise body (1), plug (4), pressure cap (3), entrance (8) and outlet (9), described body (1) is hollow tube, described body (1) is provided with sample tap (6) and pressure tap (7), described plug (4) is positioned at body (1) two ends, described plug (4) is connected with described body (1) screw, described pressure cap (3) is fixedly connected with described plug (4), described entrance (8) and described outlet (9) are positioned at sandpack column pipe two ends, it is characterized in that: inwall (2) the roughness uniformity of described body (1), the inwall of described body (1) is electric spark hacking inwall, the inner wall roughness of described body (1) is greater than Ra12.5, described plug (4) is two circle seal plugs, temperature-sensitive heater (17) is provided with in the housing of described body (1), described temperature-sensitive heater (17) is fixedly connected with described body (1).
2. a kind of sandpack column pipe according to claim 1, it is characterized in that: described plug (4) comprises O RunddichtringO (5), pad (11), screen pack (10), the screw (12) be connected with described body (1) and plug main body (13), described pad (11) and described screen pack (10) are positioned at described plug main body (13) inner side.
3. a kind of sandpack column pipe according to claim 2, is characterized in that: described plug main body (13) is provided with two orthogonal guiding gutters one (15) and guiding gutter two (16).
4. a kind of sandpack column pipe according to claim 2, is characterized in that: described pad (11) is evenly distributed with at least 10 circular holes (14).
5. a kind of sandpack column pipe according to claim 2, is characterized in that: described 0 RunddichtringO (5) is positioned at plug (4) and body (1) screw junction.
6. a kind of sandpack column pipe according to claim 2, it is characterized in that: described O RunddichtringO (5) is two circle O RunddichtringO, described O RunddichtringO (5) comprises O RunddichtringO main body (52), inner ring (51) and outer ring (53), described O RunddichtringO main body (52), inner ring (51) and outer ring (53) one-body molded, described inner ring (51) is fine and closely woven abscess inner ring.
7. a kind of sandpack column pipe according to claim 1, it is characterized in that: described temperature-sensitive heater (17) comprises heater strip (18) and thermometric controller (19), described heater strip (18) is electrically connected with described thermometric controller (19).
8. a kind of sandpack column pipe according to claim 1, it is characterized in that: described entrance (8), outlet (9), sample tap (6) and pressure tap (7) interior diameter are 1mm, described entrance (8), outlet (9), sample tap (6) and pressure tap (7) are the via openings being provided with multiple filtration net.
9. a kind of sandpack column pipe according to claim 1, is characterized in that: described sample tap (6) has 4, described each sample tap (6) interval 200mm; Described pressure tap (7) has 4, described each pressure tap (7) interval 200mm.
10. a kind of sandpack column pipe according to claim 1, is characterized in that: described pressure cap (3) is connected with body (1) screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510726409.6A CN105239978A (en) | 2015-10-30 | 2015-10-30 | Sand filling model pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510726409.6A CN105239978A (en) | 2015-10-30 | 2015-10-30 | Sand filling model pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105239978A true CN105239978A (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510726409.6A Pending CN105239978A (en) | 2015-10-30 | 2015-10-30 | Sand filling model pipe |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644672A (en) * | 2017-02-10 | 2017-05-10 | 西南石油大学 | Point-contact loosening sandstone core model |
| CN107676070A (en) * | 2017-10-25 | 2018-02-09 | 江苏鑫贝诺冶金机械有限公司 | A kind of sandpack column pipe |
| CN108979607A (en) * | 2018-07-10 | 2018-12-11 | 中国海洋石油集团有限公司 | A kind of cementing anti-channelling resisting high temperature, high salt fill out sand tube of inner ring |
| CN110805426A (en) * | 2019-06-27 | 2020-02-18 | 大港油田集团有限责任公司 | Pipe wall channeling prevention sand filling pipe for profile control agent sealing channeling simulation experiment |
| CN112161877A (en) * | 2020-12-03 | 2021-01-01 | 胜利新大新材料股份有限公司 | Pipeline pressure test equipment |
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| CN2874021Y (en) * | 2006-03-17 | 2007-02-28 | 大庆油田有限责任公司 | Long pipe sand filling model for physical analogue test |
| US20140190699A1 (en) * | 2011-08-01 | 2014-07-10 | Oilflow Solutions Holdings Limited | Recovery of Oil |
| CN104594880A (en) * | 2014-11-26 | 2015-05-06 | 中国石油天然气股份有限公司 | Artificial sand-packed model tube for oil field experiments |
| CN104747153A (en) * | 2015-02-12 | 2015-07-01 | 东北石油大学 | One-dimensional model device for simulating chemical auxiliary steam drive |
| CN205100957U (en) * | 2015-10-30 | 2016-03-23 | 南通市飞宇石油科技开发有限公司 | Sand filling model tube |
-
2015
- 2015-10-30 CN CN201510726409.6A patent/CN105239978A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2874021Y (en) * | 2006-03-17 | 2007-02-28 | 大庆油田有限责任公司 | Long pipe sand filling model for physical analogue test |
| US20140190699A1 (en) * | 2011-08-01 | 2014-07-10 | Oilflow Solutions Holdings Limited | Recovery of Oil |
| CN104594880A (en) * | 2014-11-26 | 2015-05-06 | 中国石油天然气股份有限公司 | Artificial sand-packed model tube for oil field experiments |
| CN104747153A (en) * | 2015-02-12 | 2015-07-01 | 东北石油大学 | One-dimensional model device for simulating chemical auxiliary steam drive |
| CN205100957U (en) * | 2015-10-30 | 2016-03-23 | 南通市飞宇石油科技开发有限公司 | Sand filling model tube |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644672A (en) * | 2017-02-10 | 2017-05-10 | 西南石油大学 | Point-contact loosening sandstone core model |
| CN107676070A (en) * | 2017-10-25 | 2018-02-09 | 江苏鑫贝诺冶金机械有限公司 | A kind of sandpack column pipe |
| CN108979607A (en) * | 2018-07-10 | 2018-12-11 | 中国海洋石油集团有限公司 | A kind of cementing anti-channelling resisting high temperature, high salt fill out sand tube of inner ring |
| CN108979607B (en) * | 2018-07-10 | 2020-09-04 | 中国海洋石油集团有限公司 | High-temperature-resistant high-salt sand filling pipe with internal ring cementation and anti-channeling |
| CN110805426A (en) * | 2019-06-27 | 2020-02-18 | 大港油田集团有限责任公司 | Pipe wall channeling prevention sand filling pipe for profile control agent sealing channeling simulation experiment |
| CN110805426B (en) * | 2019-06-27 | 2022-11-25 | 大港油田集团有限责任公司 | Pipe wall channeling prevention sand filling pipe for profile control agent sealing channeling simulation experiment |
| CN112161877A (en) * | 2020-12-03 | 2021-01-01 | 胜利新大新材料股份有限公司 | Pipeline pressure test equipment |
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Application publication date: 20160113 |