CN203175511U - Pressure measuring sealing cylinder - Google Patents
Pressure measuring sealing cylinder Download PDFInfo
- Publication number
- CN203175511U CN203175511U CN 201320043029 CN201320043029U CN203175511U CN 203175511 U CN203175511 U CN 203175511U CN 201320043029 CN201320043029 CN 201320043029 CN 201320043029 U CN201320043029 U CN 201320043029U CN 203175511 U CN203175511 U CN 203175511U
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- pressure measurement
- sealing
- sealing drum
- rock core
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- 238000007789 sealing Methods 0.000 title claims abstract description 98
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 71
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000011435 rock Substances 0.000 abstract description 42
- 238000002474 experimental method Methods 0.000 abstract description 15
- 239000000084 colloidal system Substances 0.000 description 11
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a pressure measurement sealing cylinder, pressure measurement sealing cylinder is made by plumbous material, has seted up a plurality of pressure measurement sealing holes on it, pressure measurement sealing cylinder's both ends are sealed respectively and are equipped with sealed piece. The utility model discloses a pressure measurement sealing cylinder can effectively guarantee the sealing performance of rock core group under the highly compressed environment of high temperature, improves the success rate of the sealed experiment of rock core.
Description
Technical field
The utility model is relevant for a kind of sealing device, especially relevant for the pressure measurement sealing drum that is applicable to rock core gas injection development experiment usefulness in a kind of oil development experimental technique field.
Background technology
Rock core gas injection experiment is one of basis and research method of widely using the most, and the oil displacement efficiency, displacement mode that the purpose of research mainly comprises the par injecting gas is to the influence of recovery ratio and the seepage flow feature of fluid in rock core etc.In the experiment, the device and method that rock core is sealed always is subjected to researcher's attention, and it has determined the success rate of gas drive experiment to a certain extent.
At present, gas injection experiment with the rock core sealing device mainly by the colloid sealing drum and be folded in colloid sealing drum clamper outward and form, be used for placing rock core to be measured in the colloid sealing drum, the gas with various/fluid by different reservoir conditions being set and injecting in the rock core carries out the gas injection experiment to rock core.
Along with the raising of gas drive experiment condition, there is following defective in existing gas injection experiment with the colloid sealing drum of rock core sealing device, can not satisfy present gas drive experimental requirements:
1) rock core need experimentize in the environment of HTHP, and in high temperature and high pressure environment, the colloid sealing drum of sealing rock core, under the erosion of corrosive gas/fluid long period, plastic strain taking place easily, and cause the rock core seal failure, can not satisfy carrying out smoothly of experiment;
2) gas that is injected in the rock core has corrosivity more, carbon dioxide etc. for example, this corrosive gas can produce corrosiveness to the colloid sealing drum of placing rock core, influence the application life of colloid sealing drum, this colloid sealing drum is twice of use or repeatedly, its mechanical performance reduces, and easily causes the rock core seal failure;
3) research of rock core displacement feature need arrange a plurality of pressure taps at the colloid sealing drum, monitor with the pressure to rock core, be subjected to the influence of colloid sealing drum colloidal materials, minimum range between the pressure tap of offering on the colloid sealing drum is restricted, and can not satisfy the required multiple spot pressure measurement requirement of experiment.
Therefore, be necessary to provide a kind of novel pressure measurement sealing drum, overcome above-mentioned defective.
The utility model content
The purpose of this utility model provides a kind of pressure measurement sealing drum, and it can effectively guarantee the sealing performance of rock core group under the environment of HTHP, improves the success rate of rock core gas injection experiment.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
The utility model provides a kind of pressure measurement sealing drum, and described pressure measurement sealing drum is made by plumbous material, offers a plurality of pressure measurement closed holes on it, and the two ends of described pressure measurement sealing drum seal respectively and are provided with sealing block.
In preferred embodiment, described a plurality of pressure measurement closed holes uniformly-spaced arrange along the axial direction of described pressure measurement sealing drum.
In preferred embodiment, the distance between adjacent described pressure measurement closed hole is 10cm.
In preferred embodiment, the periphery of described sealing block is provided with sealing ring, and described sealing block is arranged on the end of described pressure measurement sealing drum by described sealing ring sealing.
Characteristics and the advantage of pressure measurement sealing drum of the present utility model are: the pressure measurement sealing drum that utilizes plumbous material to make can reach the purpose that improves rock core model sealing performance.At first, plumbous material hardness is low can not cause damage to the rock core group; Secondly, plumbous material ductility is good, and the pressure measurement sealing drum just can closely be fitted in rock core group surface under the confined pressure effect that is higher than 1MPa, increases substantially the sealing performance of rock core group; Have, because the intrinsic intensity of plumbous matter metal, the spacing that is opened between the pressure measurement closed hole on the pressure measurement sealing drum can correspondingly be dwindled again.Therefore, the pressure measurement sealing drum that the utility model adopts plumbous material to make can improve the sealing performance of rock core group under HTHP when not damaging the rock core group, and it can guarantee rock core sealing preferably; Because plumbous material anti-corrosion capability is strong, it can effectively prevent sour gas in the environment of strong acid, highly basic corrosion effectively increases the service life.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the front view of pressure measurement sealing drum of the present utility model.
Fig. 2 is the lateral view of the sealing block of pressure measurement sealing drum of the present utility model.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model provides a kind of pressure measurement sealing drum 1, and it is made by plumbous material, offers a plurality of pressure measurement closed holes 11 on this pressure measurement sealing drum 1, and the two ends of described pressure measurement sealing drum 1 seal respectively and are provided with sealing block 12.
Specifically be, pressure measurement sealing drum 1 is cylinder barrel shaped substantially, and its external diameter is 4.1cm or 5.6cm, and internal diameter is 2.5cm or 3.8cm, and wall thickness is 0.8cm, and length is 105cm, and pressure measurement sealing drum 1 is used for the filling rock core.When carrying out the rock core sealing experiment, this pressure measurement sealing drum 1 outer cover is provided with urceolus, and it can fit tightly at core surface under the confined pressure effect in urceolus, to make long rock core model.
The inner hollow of pressure measurement sealing drum 1, a plurality of pressure measurement closed holes 11 form connected state with the inside of pressure measurement sealing drum 1, in the utility model, a plurality of pressure measurement closed holes 11 uniformly-spaced arrange along the axial direction of pressure measurement sealing drum 1, in the present embodiment, axial direction along pressure measurement sealing drum 1 uniformly-spaced is provided with five pressure measurement closed holes 11, the diameter of pressure measurement closed hole 11 is 0.4cm, the distance that adjacent two pressure measurement closed holes are 11 is 10cm, and pressure measurement closed hole 11 changes for detection of the pressure that is placed on the rock core group diverse location place in the pressure measurement sealing drum 1 in the experimentation.The pressure at those pressure measurement closed hole 11 places can pass to the pressure tap of urceolus by the pressure measurement pipeline, by being connected pointer pressure or the pressure sensor at urceolus pressure tap place, operating personnel in real time in the monitoring experiment process pressure at rock core group diverse location place change.
As shown in Figure 2, be sealedly connected on the sealing block 12 of pressure measurement sealing drum 1 end, its diameter is 2.4cm or 3.7cm, and thickness is 2.5cm, and it is used for the end of shutoff pressure measurement sealing drum 1; The outer rim of sealing block 12 is provided with sealing ring 121, offers the through hole 122 of perforation on the sealing block 12, is provided with pipeline 123 in the through hole 122, and an end of pipeline 123 is threaded in an end of sealing block 12 by pressure cap 124.
Pressure measurement sealing drum 1 of the present utility model utilizes plumbous material to make, and it can reach the purpose that improves rock core model sealing performance.At first, plumbous material hardness is low can not cause damage to the rock core group; Secondly, plumbous material ductility is good, and pressure measurement sealing drum 1 just can closely be fitted in rock core group surface under the confined pressure effect that is higher than 1MPa, increases substantially the sealing performance of rock core group; Have, because the intrinsic intensity of plumbous matter metal, the spacing that is opened in 11 of pressure measurement closed holes on the pressure measurement sealing drum 1 can correspondingly be dwindled again, and in the utility model, the distance that adjacent two pressure measurement closed holes are 11 can be contracted to 2.5cm.Therefore, the pressure measurement sealing drum 1 that the utility model adopts plumbous material to make, whole withstand voltage 100MPa, 300 ° of C of high-temperature resistant, the best environment for use temperature of plumbous matter pressure measurement sealing drum 1 is 10～200 ° of C, pressure is 1～100MPa, and it can carry out effective seal to the rock core group under the environment of HTHP, and its sealing time is long; Pressure measurement sealing drum 1 can improve the sealing performance of rock core group under HTHP when not damaging the rock core group, it can guarantee rock core sealing preferably; Because plumbous material anti-corrosion capability is strong, pressure measurement sealing drum 1 can effectively prevent the corrosion of sour gas in the environment of strong acid, highly basic, effectively prolong the application life of pressure measurement sealing drum 1.In addition, in the experimentation, according to a plurality of pressure measurement closed holes 11 that are opened on pressure measurement sealing drum 1 axial direction, the pressure that can monitor rock core group diverse location in real time changes, for the gas drive displacement characteristics provides reliable foundation.
The above only is several embodiment of the present utility model, and those skilled in the art can carry out various changes or modification to the utility model embodiment according to the disclosed content of application documents and not break away from spirit and scope of the present utility model.
Claims (4)
1. a pressure measurement sealing drum is characterized in that, described pressure measurement sealing drum is made by plumbous material, offers a plurality of pressure measurement closed holes on it, and the two ends of described pressure measurement sealing drum seal respectively and are provided with sealing block.
2. pressure measurement sealing drum as claimed in claim 1 is characterized in that, described a plurality of pressure measurement closed holes uniformly-spaced arrange along the axial direction of described pressure measurement sealing drum.
3. pressure measurement sealing drum as claimed in claim 2 is characterized in that, the distance between adjacent described pressure measurement closed hole is 10cm.
4. pressure measurement sealing drum as claimed in claim 1 is characterized in that, the periphery of described sealing block is provided with sealing ring, and described sealing block is arranged on the end of described pressure measurement sealing drum by described sealing ring sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320043029 CN203175511U (en) | 2013-01-25 | 2013-01-25 | Pressure measuring sealing cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320043029 CN203175511U (en) | 2013-01-25 | 2013-01-25 | Pressure measuring sealing cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175511U true CN203175511U (en) | 2013-09-04 |
Family
ID=49072226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320043029 Expired - Fee Related CN203175511U (en) | 2013-01-25 | 2013-01-25 | Pressure measuring sealing cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175511U (en) |
-
2013
- 2013-01-25 CN CN 201320043029 patent/CN203175511U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20220125 |