CN204374034U - A kind of core holding unit and diversion trench thereof - Google Patents
A kind of core holding unit and diversion trench thereof Download PDFInfo
- Publication number
- CN204374034U CN204374034U CN201420852701.3U CN201420852701U CN204374034U CN 204374034 U CN204374034 U CN 204374034U CN 201420852701 U CN201420852701 U CN 201420852701U CN 204374034 U CN204374034 U CN 204374034U
- Authority
- CN
- China
- Prior art keywords
- diversion trench
- rock core
- face
- holding unit
- fluid
- 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.)
- Expired - Fee Related
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a kind of diversion trench of core holding unit, for being arranged between the inlet of core holding unit and the end face of rock core, comprise fair water fin for being oppositely arranged with inlet and the bracing ring for being oppositely arranged with the end face of rock core, bracing ring is connected to the edge of fair water fin and protrudes from the plate face of fair water fin, and the fair water fin that bracing ring surrounds is provided with multiple through hole.Before testing, this diversion trench is positioned between inlet and rock core end face, the end face three of fair water fin, bracing ring and rock core forms a cavity, the fluid injected from multiple through hole can be full of this cavity, an aspectant fluid flow model is then formed between fluid and the end face of rock core, therefore, this programme can expand the contact area of fluid and rock core end face, thus is more conducive to fluid injection rock core.The invention also discloses a kind of core holding unit comprising above-mentioned diversion trench.
Description
Technical field
The utility model relates to core test technical field, particularly relates to a kind of core holding unit and diversion trench thereof.
Background technology
Inject the process on stratum to simulate fluid in oil recovery process, the general mode adopting fluid to inject core model is tested, in order to examine or check the seepage characteristic of fluid at rock core.
Existing core model comprises rock core and core holding unit, and wherein, core holding unit comprises clamping organ pipe, proofed sleeve, clamper gland bonnet, inlet and liquid outlet.When the seepage characteristic of test fluid flow, inject given fluid from inlet by pipeline, fluid flows out from liquid outlet after flowing through rock core.The inlet of existing core holding unit is the duct that a slot footpath is about 2mm, and the opening in duct and rock core end face are oppositely arranged.Fluid forms a point-to-area flowing at rock core end face, simulates a macroscopical oilfield chemistry and drives immediate vicinity of wellbore injection way to examine or check the seepage characteristic of fluid.
The shortcoming of prior art is: because the point-to-area type of flow is unfavorable for the flowing of fluid, simultaneously, according to fluid mechanics principle, can dead volume be there is in existing injection mode, namely fluid can not arrive some corner location of rock core, thus there is larger gap between the conclusion that test is obtained and actual value, increase the probability of segment fluid flow blocking rock core end face simultaneously.
Therefore, how making fluid more be conducive to injecting rock core, is the current technical issues that need to address of those skilled in the art.
Utility model content
In view of this, the utility model provides a kind of diversion trench of core holding unit, and this diversion trench can make fluid be more conducive to inject rock core.
In order to solve the problem, the utility model provides a kind of diversion trench of core holding unit, described diversion trench is for being arranged between the inlet of core holding unit and the end face of rock core, described diversion trench comprises fair water fin for being oppositely arranged with described inlet and the bracing ring for being oppositely arranged with the end face of described rock core, described bracing ring is connected to the edge of described fair water fin and protrudes from the plate face of described fair water fin, and the described fair water fin that described bracing ring surrounds is provided with multiple through hole.
Preferably, in above-mentioned diversion trench, multiple described arrays of openings becomes multiple circumference.
Preferably, in above-mentioned diversion trench, multiple described circumferential concentric is arranged.
Preferably, in above-mentioned diversion trench, multiple described through hole circumferentially described in each is uniformly distributed.
Preferably, in above-mentioned diversion trench, multiple described through hole is circular hole.
Preferably, in above-mentioned diversion trench, the diameter of described through hole is 2mm.
Preferably, in above-mentioned diversion trench, the thickness of described bracing ring is 2mm.
The diversion trench of the core holding unit that the utility model provides comprises fair water fin for being oppositely arranged with inlet and the bracing ring for being oppositely arranged with the end face of rock core, bracing ring is connected to the edge of fair water fin and protrudes from the plate face of fair water fin, and the fair water fin that bracing ring surrounds is provided with multiple through hole.
Before the seepage characteristic of test fluid flow, this diversion trench is positioned between the inlet of core holding unit and the end face of rock core, fair water fin, the end face three of bracing ring and rock core forms a cavity, this cavity is communicated with inlet by multiple through hole, the fluid injected from multiple through hole can be full of this cavity, an aspectant fluid flow model is then formed between fluid and the end face of rock core, therefore, this programme can expand the contact area of fluid and rock core end face, thus be more conducive to fluid injection rock core, fluid can also be made to arrive rock core each corner inner, reduce the probability of fluid blockage rock core end face simultaneously.
The utility model additionally provides a kind of core holding unit, and this core holding unit comprises the diversion trench described in above-mentioned any one.The derivation of the beneficial effect that the derivation of the beneficial effect that this core holding unit produces and above-mentioned diversion trench bring is substantially similar, therefore repeats no more herein.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the Facad structure schematic diagram of the diversion trench in the utility model specific embodiment scheme;
Fig. 2 is the longitudinal cross-section schematic diagram of the diversion trench in the utility model specific embodiment scheme;
Fig. 3 is the structural representation being provided with the core holding unit of rock core in the utility model specific embodiment scheme;
In Fig. 1 to Fig. 3:
Inlet-1, clamper gland bonnet-2, diversion trench-3, clamping organ pipe-4, proofed sleeve-5, rock core-6, liquid outlet-7, fair water fin-31, through hole-32, bracing ring-33.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1 to Fig. 3, Fig. 1 is the Facad structure schematic diagram of the diversion trench in the utility model specific embodiment scheme, Fig. 2 is the longitudinal cross-section schematic diagram of the diversion trench in the utility model specific embodiment scheme, and Fig. 3 is the structural representation being provided with the core holding unit of rock core in the utility model specific embodiment scheme.
In a kind of specific embodiment scheme, the utility model provides a kind of diversion trench of core holding unit, for being arranged between the inlet 1 of core holding unit and the end face of rock core 6, this diversion trench 3 comprises fair water fin 31 for being oppositely arranged with inlet 1 and the bracing ring 33 for being oppositely arranged with the end face of rock core 6, bracing ring 33 is connected to the edge of fair water fin 31 and protrudes from the plate face of fair water fin 32, and the fair water fin 31 that bracing ring 33 surrounds is provided with multiple through hole 32.
In order to flowing when making fluid injection rock core is more even, the multiple through holes 32 in this programme can according to evenly distributed difference such as matrix shape, circumferential shapes or other shapes.Preferably, multiple through hole 32 is arranged in multiple circumference by this programme, and more preferably, multiple circumferential concentric is arranged.As shown in Figure 1, multiple through holes 32 in the present embodiment scheme are scattered in the circumference of three arranged concentric, the diameter of three circumference from inside to outside can be arranged according to the concrete size of fair water fin 31, concrete, the diameter of from inside to outside three circumference in this programme is respectively 4mm, 10mm and 17mm.
In order to make through hole 32 be evenly distributed further, preferably, in this programme, each multiple through holes 32 circumferentially are also uniformly distributed, and namely multiple through hole 32 is along the circumferential direction evenly arranged.
It should be noted that, the through hole 32 in this programme can be designed to the hole of various shape, and in order to easy to process, preferably, the through hole 32 in the present embodiment scheme is circular hole.Concrete, the diameter of these circular holes is 2mm, the size concrete according to fair water fin 31 can certainly arrange the through hole 32 of different size.
It should be noted that, the effect of bracing ring 33 be for and the end face of fair water fin 31 and rock core 6 between form a cavity, to make fluid be full of cavity, thus make fluid inject rock core 6 with aspectant flow model.Bracing ring 33 can be connected to fair water fin 31 in several ways, such as, weld, integrally casting or the mode such as to be threaded, and preferably, bracing ring 33 and fair water fin 31 are designed to integrative-structure by this programme.Due to the limited space between inlet 1 and the end face of rock core 6, therefore, the thickness of bracing ring 33 is designed to 2mm by the present embodiment scheme, and namely the thickness of cavity is 2mm.
Before the seepage characteristic of test fluid flow, this diversion trench 3 is positioned between the inlet 1 of core holding unit and the end face of rock core 6, fair water fin 31, the end face three of bracing ring 33 and rock core 6 forms a cavity, this cavity is communicated with inlet 1 by multiple through hole 32, the fluid injected from multiple through hole 32 can be full of this cavity, an aspectant fluid flow model is then formed between the end face of fluid and rock core 6, therefore, this programme can expand the contact area of fluid and rock core end face, thus be more conducive to fluid injection rock core 6, fluid can also be made to arrive rock core 6 each corner inner, reduce the probability of fluid blockage rock core end face simultaneously.
Please refer to Fig. 3, Fig. 3 is the structural representation being provided with the core holding unit of rock core in the utility model specific embodiment scheme.
The utility model additionally provides a kind of core holding unit, concrete, this core holding unit comprises clamping organ pipe 4, proofed sleeve 5, inlet 1, liquid outlet 7, clamper gland bonnet 2 and diversion trench 3, during test, it is inner that rock core 6 is positioned over proofed sleeve 5, and be arranged between the inlet 1 of core holding unit and the end face of rock core 6 by diversion trench 3, and fluid injects from inlet 1, and inject rock core 6 through diversion trench 3, finally discharge from the liquid outlet 7 of rock core 6 other end.
Because this core holding unit is provided with the diversion trench 3 described in above-described embodiment scheme, therefore, the derivation of the beneficial effect that the derivation of the beneficial effect that this core holding unit produces and above-mentioned diversion trench 3 bring is substantially similar, therefore repeats no more herein.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. the diversion trench of a core holding unit, it is characterized in that, described diversion trench (3) is for being arranged between the inlet (1) of core holding unit and the end face of rock core (6), described diversion trench (3) comprises fair water fin (31) for being oppositely arranged with described inlet (1) and the bracing ring (33) for being oppositely arranged with the end face of described rock core (6), described bracing ring (33) is connected to the edge of described fair water fin (31) and protrudes from the plate face of described fair water fin (31), the described fair water fin (31) that described bracing ring (33) surrounds is provided with multiple through hole (32).
2. diversion trench according to claim 1, is characterized in that, multiple described through hole (32) is arranged in multiple circumference.
3. diversion trench according to claim 2, is characterized in that, multiple described circumferential concentric is arranged.
4. diversion trench according to claim 3, is characterized in that, multiple described through hole (32) circumferentially described in each is uniformly distributed.
5. diversion trench according to claim 1, is characterized in that, multiple described through hole (32) is circular hole.
6. diversion trench according to claim 5, is characterized in that, the diameter of described through hole (32) is 2mm.
7. the diversion trench according to any one of claim 1 to 6, is characterized in that, the thickness of described bracing ring (33) is 2mm.
8. a core holding unit, is characterized in that, comprises the diversion trench (3) described in any one of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420852701.3U CN204374034U (en) | 2014-12-29 | 2014-12-29 | A kind of core holding unit and diversion trench thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420852701.3U CN204374034U (en) | 2014-12-29 | 2014-12-29 | A kind of core holding unit and diversion trench thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204374034U true CN204374034U (en) | 2015-06-03 |
Family
ID=53330244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420852701.3U Expired - Fee Related CN204374034U (en) | 2014-12-29 | 2014-12-29 | A kind of core holding unit and diversion trench thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204374034U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842425A (en) * | 2016-05-23 | 2016-08-10 | 青岛中瑞泰软控技术有限公司 | Core holding unit and dynamic filtrate loss test unit |
| CN109916798A (en) * | 2019-03-19 | 2019-06-21 | 吕梁学院 | Seepage flow plate and its test method for cleaning with diversion function |
-
2014
- 2014-12-29 CN CN201420852701.3U patent/CN204374034U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842425A (en) * | 2016-05-23 | 2016-08-10 | 青岛中瑞泰软控技术有限公司 | Core holding unit and dynamic filtrate loss test unit |
| CN105842425B (en) * | 2016-05-23 | 2017-12-01 | 青岛中瑞泰软控科技股份有限公司 | A kind of core holding unit and dynamic filtration experimental provision |
| CN109916798A (en) * | 2019-03-19 | 2019-06-21 | 吕梁学院 | Seepage flow plate and its test method for cleaning with diversion function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204439498U (en) | One side's core holding unit and square diversion trench thereof | |
| BR112013013146A2 (en) | alternative flow channel gravel packing shutter and method for completing a well | |
| CN204612895U (en) | A kind of small-sized flow field simulation tank | |
| CN204374034U (en) | A kind of core holding unit and diversion trench thereof | |
| CN105239981A (en) | Heavy oil thermal recovery horizontal well section spatially variable-mass flow simulation experiment device | |
| CN201327460Y (en) | Filling-up plate device for pipeline hydrotest | |
| CN204314271U (en) | One is applicable to particulate species blocking agent and injects back-up sand basket device | |
| CN103364331B (en) | The corrosion monitoring process that a kind of line fluid does not stop production | |
| CN202474788U (en) | Cable pipe orifice sealing device | |
| CN205886640U (en) | Outflow pipeline contains venturi mixer of stagger arrangement tube bank | |
| CN204008646U (en) | Alkali aggregate test case | |
| CN202074166U (en) | Saddle-shaped quick pipe joint | |
| CN203273146U (en) | Ground source heat pump water collecting and distributing device | |
| CN206945639U (en) | A kind of dismountable underground engineering fluid structurecoupling test-bed | |
| CN205844347U (en) | A kind of spot sample device and sample needle thereof | |
| CN206329857U (en) | Compound end of suppressing is blocked up | |
| CN2690712Y (en) | Injection type seal clamp | |
| TWM594131U (en) | Safety accurate detection system for detecting leakage of house inlet (feed) water pipes | |
| CN202431192U (en) | Step drill | |
| CN204628900U (en) | A kind of seawater drinking-water pipe | |
| CN204037935U (en) | A kind of automatic steady filling apparatus | |
| CN203965096U (en) | A kind of pipeline leak detection packoff | |
| CN104501644B (en) | High-pressure anticorrosion heat exchange joint and method of attachment | |
| CN103340131A (en) | Surface-irrigation field irrigation device | |
| CN204076864U (en) | A kind of device for PE conduits fused |
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: 20150603 Termination date: 20211229 |