CN203626830U - Split type high-pressure sand packed experimental tube - Google Patents
Split type high-pressure sand packed experimental tube Download PDFInfo
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- CN203626830U CN203626830U CN201320692658.4U CN201320692658U CN203626830U CN 203626830 U CN203626830 U CN 203626830U CN 201320692658 U CN201320692658 U CN 201320692658U CN 203626830 U CN203626830 U CN 203626830U
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- end cap
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Abstract
The utility model provides a split type high-pressure sand packed experimental tube. The split type high-pressure sand packed experimental tube comprises a tube body, wherein an upper plug and a lower plug are detachably nested at two ends of the tube body in a sealed manner respectively, and liquid inlet and outlet are formed in the upper plug and the lower plug; and the tube body adopts a split structure which is formed by detachably butting a first half body and a second half body. According to the structure, after an experiment is finished, the status of a sand packing layer can be observed or sampling analysis can be performed on the sand packing layer after the experiment by opening the first half body and the second half body through dismounting of the upper plug and the lower plug, and a real experimental result can be obtained without damaging the experimental tube in the process; and meanwhile, the experimental tube can be reused, and the experimental cost is reduced.
Description
Technical field
The utility model relates to a kind of back-up sand experiment tube for laboratory experiment, particularly a kind of dissection type high pressure back-up sand experiment tube.
Background technology
In oil exploitation technology in-house laboratory investigation, conventionally can use back-up sand experiment tube.For example, in drilling leakage blockage experiment, using glass tube to fill quartz sand tests; In rock core flowing experiment, using stainless-steel pipe to fill reservoir sand tests; In the simulated experiment of one dimension combustion in situ, using stainless-steel pipe or earthenware to fill contaminated product quartz sand tests; In artificial borehole wall sand prevention simulated experiment, use stainless-steel pipe filling quartz sand and resin sand to test.Wherein, in drilling leakage blockage experiment and rock core flowing experiment, experiment tube need to bear high pressure; And in the simulated experiment of one dimension combustion in situ and artificial borehole wall sand prevention simulated experiment, experiment tube need to bear HTHP.
In these experiments, need to fill after observation experiment the situation of layer of sand, the filling layer of sand after experiment is carried out to sample analysis, to obtain real experimental result simultaneously.At present, complete after above-mentioned experiment, all needing first to break bad Tian sand experiment tube, just can observe experiment after fill layer of sand situation or to experiment after filling layer of sand sample analysis.But in breaking test pipe, also can damage filling layer of sand, thereby directly affect experiment effect.In addition, the cost of experiment tube own is high, and each experiment all needs to expend an experiment tube, has also increased experimental cost.
Utility model content
The purpose of this utility model is to propose a kind of dissection type high pressure back-up sand experiment tube, in guaranteeing high temperature resistant, high pressure, can be the in the situation that of breaking test pipe not, observe easily the situation after the experiment of filling layer of sand in experiment tube, and can sample the filling layer of sand after experiment relatively easily.
In order to achieve the above object, the technical solution of the utility model is: a kind of dissection type high pressure back-up sand experiment tube, comprise tube body, the two ends of described tube body respectively removedly sealing shroud be provided with upper plug head and lower end cap, described upper plug head and lower end cap all offer liquid discharge entrance; Described tube body is to dock removedly by the first halfbody and the second halfbody the split type structure forming.
Further, between the outside wall surface of described upper plug head, lower end cap and described tube body, be respectively equipped with sealing ring, the two ends of described tube body are equipped with respectively can dismantle with upper plug head, lower end cap the gland being connected, and described gland has one and can extend between described upper plug head or lower end cap and described tube body and be resisted against the extension of described sealing ring.
Further, the two ends of described sealing ring are respectively equipped with packing ring, and the extension of described gland can be resisted against the packing ring that is arranged on described sealing ring one end.
Further, the tube wall of described the first halfbody and the second halfbody joint formation fillet that stretches out respectively, described fillet is convexly set in the outside wall surface of tube body along the length direction of described tube body, described upper plug head, lower end cap lay respectively at the two ends of described fillet.
Further, between described fillet and the outside wall surface of described the first halfbody or the second halfbody, be provided with more than one reinforcing block.
Further, be provided with along the seal groove of the perforation of tube body length direction in a wherein side of described the first halfbody tube wall interface corresponding with described the second halfbody, in described seal groove, be provided with weather strip.
Further, the junction, end of the tube body of described lower end cap and described split type structure is also provided with sand grid, and the inner concave of described lower end cap forms and is beneficial to the rounding conical surface that fluid flows out.
Further, described experiment tube also comprises at least one pull bar, and the two ends of described pull bar connect respectively described upper plug head and lower end cap.
Further, described experiment tube also includes a urceolus, the two ends of described urceolus are provided with end cap, described tube body, upper plug head and lower end cap are all arranged in described urceolus, and the end cap contact of described urceolus is covered on described upper plug head and lower end cap, and the liquid discharge entrance of described upper plug head, lower end cap extends to respectively the outside of described end cap.
Dissection type high pressure back-up sand experiment tube of the present utility model, mainly by using tube body instead split type structure,, tube body is by being docked and form removedly by the first halfbody and the second halfbody, after experiment completes, by dismantling upper and lower plug, open the first halfbody and the second halfbody, can be observed the situation of heap sand layer or to experiment after filling layer of sand sample analysis, this process does not need breaking test pipe, can obtain real experimental result; Meanwhile, experiment tube also can be reused, and reduces experimental cost.At tube body, sealing ring and packing ring, seal groove and weather strip are set outward again, and the structures such as boss are set on fillet, the ability that makes tube body bear HTHP improves greatly.
Accompanying drawing explanation
Fig. 1 is dissection type high pressure back-up sand experiment tube structural representation of the present utility model;
Fig. 2 is the local enlarged diagram of the utility model bottom;
Fig. 3 is that the master of the utility model split type structure tube body looks schematic diagram;
Fig. 4 is cross-sectional schematic of the present utility model;
Fig. 5 is the structural representation of another embodiment of the utility model dissection type high pressure back-up sand experiment tube;
Fig. 6 is the structural representation that dissection type high pressure back-up sand experiment tube of the present utility model is connected with urceolus.
Description of reference numerals:
1-tube body, 2-upper plug head, 21-fluid intake, 3-lower end cap, 31-fluid issuing, 4-sand grid, 5-gland, 51-extension, 6-sealing ring, 7-packing ring, 8-pull bar, 9-urceolus, 91-upper end cover, 92-bottom end cover, 11-the first halfbody, 110-fillet, 12-the second halfbody, 120-fillet, 14-reinforcing block, 15-seal groove, 16-weather strip.
The specific embodiment
Understand for technical characterictic of the present utility model, object and effect being had more clearly, now contrast accompanying drawing the specific embodiment of the present utility model is described.
As shown in Figure 1 to Figure 3, the utility model proposes a kind of dissection type high pressure back-up sand experiment tube, comprise tube body 1, described tube body 1 is to dock removedly by the first halfbody 11 and the second halfbody 12 split type structure forming, the two ends of tube body 1 respectively removedly sealing shroud be provided with upper plug head 2 and lower end cap 3, on upper plug head 2, lower end cap 3, all offer liquid discharge entrance, in a specific embodiment as shown in Figure 1, upper plug head 2 is provided with fluid intake 21, and lower end cap 3 is provided with fluid issuing 31.
After having tested, dismounting upper plug head 2 and lower end cap 3, open the first halfbody 11 and the second halfbody 12, can be observed the situation of filling layer of sand in experiment tube, and can in experiment tube, sample to analyze the filling layer of sand experiment easily.
For the tube body 1 that the improves split type structure sealing in experimentation, between the outside wall surface of upper plug head 2, lower end cap 3 and tube body 1, be respectively equipped with sealing ring 6, and the gland 5 at two ends by being set in tube body 1 seals the two ends of the tube body 1 of sealing ring 6 to split type structure.Specifically, two ends at tube body 1 are arranged with respectively gland 5, two these glands 5 are connected with upper plug head 2, lower end cap 3 respectively removedly, and each gland 5 all has one and can extend between upper plug head 2 or lower end cap 3 and tube body 1 and be resisted against the extension 51 of sealing ring 6.The extension 51 contact sealing rings 6 of gland 5, it is full of and seal upper plug head 2 and tube body 1 between or the annular space that forms between lower end cap 3 and tube body 1, squeezing action sealing ring 6 being produced by gland 5 can be tightly connected with tube body 1 upper plug head 2, lower end cap 3.
For the application life of further improving sealing ring performance, improving sealing ring 6, at the two ends of sealing ring 6, packing ring 7 can also be set, make the extension 51 of gland 5 can be resisted against the packing ring (referring to Fig. 2) that is arranged on described sealing ring 6 and gland 5 corresponding end.
In a specific embodiment, the tube wall of the first halfbody 11 of tube body 1 and the joint of the second halfbody 12 stretches out respectively, the tube wall of the first halfbody 11 extends to form fillet 110, the tube wall of the second halfbody 12 stretches out and forms fillet 120, described fillet 110 and fillet 120 are convexly set in the outside wall surface of tube body 1 along the length direction of tube body 1, the fillet 110 of described the first halfbody 11 can link together (referring to Fig. 1) by the bolt of even setting with the fillet 120 of described the second halfbody 12, after facilitating experiment, dismantles.Described upper plug head 2, lower end cap 3 lay respectively at the two ends of fillet 110,120, and as far as possible near the end of described fillet 110 and fillet 120, to improve the sealing performance at fillet place of split type structure tube body 1.
In order to strengthen the bonding strength of fillet 110, fillet 120, in the outside wall surface of described fillet 110 and the first halfbody 11, or be at least welded with a reinforcing block 14 between fillet 120 and the outside wall surface of the second halfbody 12.Described reinforcing block 14 is not limited to only be suitable for the mode of welding, also can be one-body molded with the first halfbody 11 or the second halfbody 12; In the time that fillet 110 and fillet 120 are provided with reinforcing block 14, the reinforcing block that is arranged on fillet 110 can be corresponding one by one with the position of the reinforcing block that is arranged on fillet 120, in the time that reinforcing block is more than one (referring to Fig. 3), described reinforcing block is evenly distributed between whole fillet and tube body 1 outside wall surface.
In order further to improve the sealing of tube body 1, in a wherein side of the tube wall interface of the first halfbody 11, the second halfbody 12 correspondences, be provided with the seal groove connecting along tube body length direction, in described seal groove, be provided with weather strip; That is, can on the tube wall interface of the first halfbody 11 or the second halfbody 12, described seal groove be all set, also can on the first halfbody 11 1 tube wall interfaces He on second halfbody 12 another tube wall interfaces, described seal groove be set respectively.In a specific embodiment as shown in Figure 4, the seal groove 15 of perforation is all arranged on the tube wall interface of second halfbody 12 these sides, and weather strip 16 is located in seal groove 15.
In a feasible technical scheme, the lower end cap of dissection type high pressure back-up sand experiment tube of the present utility model 3 is also provided with sand grid 4 with the junction, end of tube body 1, in order to the sand grains in stay pipe body 1 and play sand block effect.The inner concave of lower end cap 3 forms and is beneficial to the rounding conical surface that fluid flows out.
In another specific embodiment, as shown in Figure 5, dissection type high pressure back-up sand experiment tube of the present utility model can arrange at least one pull bar 8, the two ends of pull bar 8 connect respectively upper plug head 2 and lower end cap 3, make to be connected more firmly between upper plug head 2, lower end cap 3 and tube body 1, prevent that upper plug head 2 and lower end cap 3 departs from tube body 1 under High Pressure.
As shown in Figure 6, in the time of the back-up sand experiment of carrying out HTHP, can all be arranged in a urceolus 9 connecting as a whole dissection type tube body 1, upper plug head 2, lower end cap 3, the two ends of this urceolus 9 are provided with upper end cover 91 and bottom end cover 92, and the upper end cover 91 top bottoms of urceolus 9 close and upper plug head 2, bottom end cover 92 contacts are covered on lower end cap 3, and the fluid issuing 31 of the fluid intake 21 of upper plug head 2, lower end cap 3 extends to respectively the upper end cover 91 of urceolus 9, bottom end cover 92 outsides.Upper end cover 91 by urceolus 9 fits tightly with lower end cap 3 with upper plug head 2, bottom end cover 92, and upper plug head 2 and lower end cap 3 are produced to pressure, thereby can prevent that upper plug head 2 and lower end cap 3 depart from the tube body 1 of split type structure under high temperature, High Pressure.Between urceolus 9 and dissection type tube body 1, heating and attemperator can also be set simultaneously, attemperator also can be set outside urceolus 9.For example, in order to strengthen heat insulation effect, can be at the outer heating and thermal insulation cover that arranges of urceolus 9.
The foregoing is only the schematic specific embodiment of the utility model, not in order to limit scope of the present utility model.Any those skilled in the art, is not departing from equivalent variations and the modification under the prerequisite of design of the present utility model and principle, done, all should belong to the scope of the utility model protection.And it should be noted that, each ingredient of the present utility model is not limited in above-mentioned overall applicability, each technical characterictic of describing in manual of the present utility model can select one to adopt separately or select the multinomial use that combines according to actual needs, therefore, the utility model has naturally been contained other combinations relevant with this case innovative point and specifically application.
Claims (9)
1. a dissection type high pressure back-up sand experiment tube, comprises tube body, the two ends of described tube body respectively removedly sealing shroud be provided with upper plug head and lower end cap, described upper plug head and lower end cap all offer liquid discharge entrance; It is characterized in that, described tube body is to dock removedly by the first halfbody and the second halfbody the split type structure forming.
2. dissection type high pressure back-up sand experiment tube according to claim 1, it is characterized in that, between the outside wall surface of described upper plug head, lower end cap and described tube body, be respectively equipped with sealing ring, the two ends of described tube body are equipped with respectively can dismantle with upper plug head, lower end cap the gland being connected, and described gland has one and can extend between described upper plug head or lower end cap and described tube body and be resisted against the extension of described sealing ring.
3. dissection type high pressure back-up sand experiment tube according to claim 2, is characterized in that, the two ends of described sealing ring are respectively equipped with packing ring, and the extension of described gland can be resisted against the packing ring that is arranged on described sealing ring one end.
4. dissection type high pressure back-up sand experiment tube according to claim 1, it is characterized in that, the tube wall of described the first halfbody and the second halfbody joint formation fillet that stretches out respectively, described fillet is convexly set in the outside wall surface of tube body along the length direction of described tube body, described upper plug head, lower end cap lay respectively at the two ends of described fillet.
5. dissection type high pressure back-up sand experiment tube according to claim 4, is characterized in that, between described fillet and the outside wall surface of described the first halfbody or the second halfbody, is provided with more than one reinforcing block.
6. dissection type high pressure back-up sand experiment tube according to claim 1, it is characterized in that, a wherein side of the tube wall interface that described the first halfbody is corresponding with described the second halfbody is provided with along the seal groove of the perforation of tube body length direction, in described seal groove, is provided with weather strip.
7. dissection type high pressure back-up sand experiment tube according to claim 1, it is characterized in that, the junction, end of the tube body of described lower end cap and described split type structure is also provided with sand grid, and the inner concave of described lower end cap forms and is beneficial to the rounding conical surface that fluid flows out.
8. dissection type high pressure back-up sand experiment tube according to claim 1, is characterized in that, described experiment tube also comprises at least one pull bar, and the two ends of described pull bar connect respectively described upper plug head and lower end cap.
9. dissection type high pressure back-up sand experiment tube according to claim 1, it is characterized in that, described experiment tube also includes a urceolus, the two ends of described urceolus are provided with end cap, described tube body, upper plug head and lower end cap are all arranged in described urceolus, and the end cap contact of described urceolus is covered on described upper plug head and lower end cap, and the liquid discharge entrance of described upper plug head, lower end cap extends to respectively the outside of described end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320692658.4U CN203626830U (en) | 2013-11-05 | 2013-11-05 | Split type high-pressure sand packed experimental tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320692658.4U CN203626830U (en) | 2013-11-05 | 2013-11-05 | Split type high-pressure sand packed experimental tube |
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| Publication Number | Publication Date |
|---|---|
| CN203626830U true CN203626830U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320692658.4U Expired - Fee Related CN203626830U (en) | 2013-11-05 | 2013-11-05 | Split type high-pressure sand packed experimental tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN203626830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201470A (en) * | 2015-09-24 | 2015-12-30 | 中国石油大学(华东) | Heterogeneous single sand-filled pipe core model and filling method thereof |
-
2013
- 2013-11-05 CN CN201320692658.4U patent/CN203626830U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201470A (en) * | 2015-09-24 | 2015-12-30 | 中国石油大学(华东) | Heterogeneous single sand-filled pipe core model and filling method thereof |
| CN105201470B (en) * | 2015-09-24 | 2017-07-11 | 中国石油大学(华东) | A kind of heterogeneous single fill out sand tube core model and its fill and present method |
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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 |
Granted publication date: 20140604 Termination date: 20211105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |