CN220979574U - Salt cave gas storage salt cave neck jam dredging device and salt cave gas storage - Google Patents
Salt cave gas storage salt cave neck jam dredging device and salt cave gas storage Download PDFInfo
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- CN220979574U CN220979574U CN202322938013.0U CN202322938013U CN220979574U CN 220979574 U CN220979574 U CN 220979574U CN 202322938013 U CN202322938013 U CN 202322938013U CN 220979574 U CN220979574 U CN 220979574U
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- Prior art keywords
- gas storage
- salt cavern
- neck
- salt
- oil pipe
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- 150000003839 salts Chemical class 0.000 title claims abstract description 88
- 238000003860 storage Methods 0.000 title claims abstract description 56
- 230000000903 blocking effect Effects 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 239000012267 brine Substances 0.000 claims description 6
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 241000243251 Hydra Species 0.000 claims 2
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 claims 2
- 238000005553 drilling Methods 0.000 abstract description 6
- 241000251468 Actinopterygii Species 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 44
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to a salt cavern neck blocking and dredging device for a salt cavern gas storage and the salt cavern gas storage. The dredging device for blocking the salt cavern neck of the salt cavern gas storage can keep the pressure in the salt cavity stable, prevent accidents such as drilling sticking and fish falling, and the like, and greatly improve the safety and reliability.
Description
Technical Field
The utility model relates to the technical field of salt cavern gas storage, in particular to a salt cavern neck blockage dredging device of a salt cavern gas storage and the salt cavern gas storage.
Background
At present, a part of open hole sections (generally 10-15 meters) are arranged at the top of a solution cavity of an underground salt cavern gas storage, and the salt cavern neck is blocked due to the fact that necking is easy to occur due to the creep property of salt rock. The commonly adopted dredging technology is to perform impact and coiled tubing drilling dredging, so that the channel from the cavity to the ground is restored to be smooth, and normal circulation of gas and inlet and outlet of detection equipment are realized.
The impact dredging technique commonly used can achieve the dredging effect for slight blockage, and once the blockage is serious or the blocked well section is long, the method cannot be realized. The coiled tubing of coiled tubing drilling dredging technology can not rotate, drives the drill bit to drill through the underground motor, and adopts the reamer to drill, so that the diameter of the salt cavern neck is larger than that of the sleeve, the original salt cavern neck is damaged, the drilling sticking risk exists, and the safety risk is high. Therefore, the problem of necking down the salt cavern neck of the existing salt cavern gas storage can not be well solved.
Disclosure of utility model
The utility model provides a salt cavern neck blockage dredging device for a salt cavern gas storage and the salt cavern gas storage, aiming at solving one or more of the technical problems in the prior art.
The technical scheme for solving the technical problems is as follows: the utility model provides a salt cave gas storage salt cave neck jam pull throughs, includes coiled tubing, centralizer, hydraulic nozzle, uniflow valve and oil pipe packer, detachably is connected with centralizer and oil pipe packer on the lateral wall of coiled tubing, the uniflow valve sets up in the coiled tubing, hydraulic nozzle sets up the one end of coiled tubing.
The beneficial effects of the utility model are as follows: the dredging device for blocking the salt cavern neck of the salt cavern gas storage can keep the pressure in the salt cavity stable, prevent accidents such as drilling sticking and fish falling, and the like, and greatly improve the safety and reliability.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the check valve is arranged adjacent to the hydraulic nozzle and a gap is reserved between the check valve and the hydraulic nozzle.
Further, the centralizer is disposed between the tubing packer and the single flow valve.
Further, the hydraulic nozzle is a rotary hydraulic nozzle.
Further, the device also comprises a pump set and a mixed liquid storage tank, wherein the pump set is communicated with the mixed liquid storage tank through an input pipeline, and the pump set is also communicated with the other end of the continuous oil pipe through an output pipeline.
The beneficial effects of adopting the further scheme are as follows: through setting up the mixed solution holding vessel, can mix the sand blasting fluid in advance, make things convenient for follow-up operation.
The utility model provides a salt cave gas storage, includes above-mentioned salt cave gas storage salt cave neck blocks up pull throughs, still includes the gas storage body, the salt cave neck of gas storage body has the reducing section, the hydraulic nozzle of coiled tubing one end is located the top of reducing section, centralizer with the oil pipe packer is fixed respectively on the inside wall of salt cave neck, coiled tubing can for centralizer with oil pipe packer up-and-down motion.
The beneficial effects of the utility model are as follows: according to the salt cavern gas storage, by arranging the salt cavern neck blocking and dredging device, the mixed liquid can be sprayed out through the hydraulic spray head by using the continuous oil pipe, the blocking objects are washed away, the channel from the gas storage cavity to the ground is restored, and the circulation in the cavity and the in-out of the detection equipment are realized.
Further, the inner side wall of the salt cavern neck is also provided with an injection and production gas sleeve, the lower end of the injection and production gas sleeve is fixedly connected with the inner side wall of the salt cavern neck through a sleeve packer, and the sleeve packer is positioned below the oil pipe packer.
Further, the oil pipe packer and the centralizer are fixedly connected with the inner side wall of the gas injection and production sleeve.
Furthermore, an annulus protection liquid is further arranged between the gas injection and production sleeve and the inner side wall of the salt cavern neck.
Further, the single flow valve is positioned below the injection and production casing.
Drawings
FIG. 1 is a schematic structural view of a salt cavern neck blockage dredging device of a salt cavern gas storage;
FIG. 2 is a schematic diagram of the structure of the salt cavern gas storage of the present utility model prior to the salt cavern neck opening;
Fig. 3 is a schematic diagram of the structure of the salt cavern gas storage according to the present utility model after the salt cavern neck is opened.
In the drawings, the list of components represented by the various numbers is as follows:
1. A coiled tubing; 2. a centralizer; 3. a hydraulic shower nozzle; 4. a single flow valve; 5. an oil pipe packer; 6. a gas storage body; 7. natural gas; 8. brine; 9. an insoluble pit; 10. a reducing section; 11. salt acupoint neck; 12. annulus protection fluid; 13. injecting and producing gas sleeve; 14. a casing packer.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
As shown in fig. 1 to 3, the salt cavern neck blockage dredging device for the salt cavern gas storage comprises a continuous oil pipe 1, a centralizer 2, a hydraulic nozzle 3, a check valve 4 and an oil pipe packer 5, wherein the centralizer 2 and the oil pipe packer 5 are detachably connected to the outer side wall of the continuous oil pipe 1, the check valve 4 is arranged in the continuous oil pipe 1, and the hydraulic nozzle 3 is arranged at one end of the continuous oil pipe 1.
As shown in fig. 1 to 3, the check valve 4 of the present embodiment is disposed adjacent to the hydro head 3 with a gap reserved between the check valve and the hydro head 3. The arrangement of the check valve can prevent the backflow.
As shown in fig. 1 to 3, the centralizer 2 of the present embodiment is disposed between the tubing packer 5 and the check valve 4.
In a preferred embodiment of this embodiment, the hydraulic nozzle 3 is a rotary hydraulic nozzle. And the end part and the peripheral side wall of the rotary hydraulic nozzle are provided with spray holes.
The salt cave gas storage salt cave neck jam pull throughs of this embodiment still includes pump package and mixed liquor holding vessel, the pump package pass through the input pipeline with mixed liquor holding vessel intercommunication, the pump package still pass through the output pipeline with coiled tubing 1's the other end intercommunication. Through setting up the mixed solution holding vessel, can mix the sand blasting fluid in advance, make things convenient for follow-up operation. The mixed liquid in the mixed liquid storage tank of the embodiment is a mixture of brine and sand, and a corrosion inhibitor, a gelatinizing agent and the like can be added, so that the pressure stability in a salt cavity can be effectively ensured in the dredging process, and blowout is prevented. Of course, besides the pump group and the mixed liquid storage tank, other ground devices can be arranged on the ground of the wellhead, so that smooth lower part of the continuous oil pipe and smooth conveying of the mixed liquid are facilitated.
According to the salt cavern gas storage salt cavern neck blocking dredging device, the pressure in the salt cavity can be kept stable, accidents such as drilling sticking and fish falling can be prevented, and the safety and reliability are greatly improved.
As shown in fig. 2 and 3, a salt cavern gas storage of this embodiment includes the above-mentioned salt cavern gas storage salt cave neck jam pull throughs, still includes gas storage body 6, the salt cave neck 11 of gas storage body 6 has diameter reduction section 10, the water conservancy shower nozzle 3 of coiled tubing 1 one end is located the top of diameter reduction section 10, centralizer 2 with oil pipe packer 5 are fixed respectively on the inside wall of salt cave neck 11, coiled tubing 1 can for centralizer 2 with oil pipe packer 5 up-and-down motion.
Specifically, as shown in fig. 2 and 3, the bottom of the gas storage body 6 is an insoluble bottom pit 9, brine 8 is disposed above the insoluble bottom pit 9, and natural gas 7 is disposed above the brine 8.
As shown in fig. 2 and 3, the inner side wall of the salt cavern neck 11 in this embodiment is further provided with an injection and production gas sleeve 13, the lower end of the injection and production gas sleeve 13 is fixedly connected with the inner side wall of the salt cavern neck 11 through a sleeve packer 14, and the sleeve packer 14 is located below the oil pipe packer 5.
As shown in fig. 2 and 3, the oil pipe packer 5 and the centralizer 2 of the present embodiment are fixedly connected to the inner side wall of the gas injection and production casing 13.
As shown in fig. 2 and 3, an annulus protection liquid 12 is further disposed between the gas injection sleeve 13 and the inner side wall of the salt cavern neck 11 in this embodiment.
As shown in fig. 2 and 3, the check valve 4 of the present embodiment is located below the gas injection and production casing 13.
The specific dredging process of the salt cavern gas storage and salt cavern neck blocking dredging device comprises the steps of firstly flushing a gas storage body, lowering a continuous oil pipe to a preset position, pumping mixed liquid through a pump set of a ground device, spraying the mixed liquid to a diameter-reducing section of the salt cavern neck, after dredging for a period of time, retracting the continuous oil pipe, checking the dredging condition and completing dredging operation.
According to the salt cavern gas storage, by arranging the salt cavern neck blocking dredging device, the mixed liquid can be sprayed out through the hydraulic spray head by using the continuous oil pipe, the blocking objects are flushed away, the gas storage cavity is restored to a ground channel, and circulation in the cavity and in and out of the detection equipment are realized.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (10)
1. The utility model provides a salt cave gas storage salt cave neck jam pull throughs, its characterized in that includes coiled tubing, centralizer, hydraulic nozzle, uniflow valve and oil pipe packer, detachably is connected with centralizer and oil pipe packer on the lateral wall of coiled tubing, the uniflow valve sets up in the coiled tubing, hydraulic nozzle sets up the one end of coiled tubing.
2. A salt cavern neck blockage removal device as set forth in claim 1 wherein said single flow valve is disposed adjacent said hydra and is spaced from said hydra.
3. The brine pit and gas storage brine pit neck blockage dredging device according to claim 2, wherein the centralizer is arranged between the oil pipe packer and the uniflow valve.
4. The salt cavern neck blockage dredging device for the salt cavern gas storage is characterized in that the hydraulic spray head is a rotary hydraulic spray nozzle.
5. The salt cavern neck blockage dredging device for the salt cavern gas storage is characterized by further comprising a pump set and a mixed liquid storage tank, wherein the pump set is communicated with the mixed liquid storage tank through an input pipeline, and the pump set is also communicated with the other end of the continuous oil pipe through an output pipeline.
6. The salt cavern gas storage is characterized by comprising the salt cavern neck blocking dredging device of the salt cavern gas storage according to any one of claims 1 to 5, and further comprising a gas storage body, wherein the salt cavern neck of the gas storage body is provided with a diameter reduction section, a hydraulic nozzle at one end of a continuous oil pipe is positioned above the diameter reduction section, a centralizer and an oil pipe packer are respectively fixed on the inner side wall of the salt cavern neck, and the continuous oil pipe can move up and down relative to the centralizer and the oil pipe packer.
7. The salt cavern gas storage of claim 6, wherein an injection and production gas sleeve is further arranged on the inner side wall of the salt cavern neck, the lower end of the injection and production gas sleeve is fixedly connected with the inner side wall of the salt cavern neck through a sleeve packer, and the sleeve packer is positioned below the oil pipe packer.
8. The salt cavern gas storage of claim 7, wherein the oil pipe packer and the centralizer are fixedly connected with an inner side wall of the injection and production gas sleeve.
9. A salt cavern gas storage according to claim 7 wherein an annulus protection fluid is also provided between the gas injection and production sleeve and the inside wall of the salt cavern neck.
10. A salt cavern gas storage component as set forth in claim 7 wherein said single flow valve is located below said injection and production gas jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322938013.0U CN220979574U (en) | 2023-10-31 | 2023-10-31 | Salt cave gas storage salt cave neck jam dredging device and salt cave gas storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322938013.0U CN220979574U (en) | 2023-10-31 | 2023-10-31 | Salt cave gas storage salt cave neck jam dredging device and salt cave gas storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220979574U true CN220979574U (en) | 2024-05-17 |
Family
ID=91058016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322938013.0U Active CN220979574U (en) | 2023-10-31 | 2023-10-31 | Salt cave gas storage salt cave neck jam dredging device and salt cave gas storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220979574U (en) |
-
2023
- 2023-10-31 CN CN202322938013.0U patent/CN220979574U/en active Active
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