CN212614658U - Connecting device for thickened oil for fracturing in casing - Google Patents
Connecting device for thickened oil for fracturing in casing Download PDFInfo
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- CN212614658U CN212614658U CN202021241040.2U CN202021241040U CN212614658U CN 212614658 U CN212614658 U CN 212614658U CN 202021241040 U CN202021241040 U CN 202021241040U CN 212614658 U CN212614658 U CN 212614658U
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- ring platform
- casing
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- connecting sleeve
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Abstract
The utility model relates to the technical field of a well mouth device for drilling in the petroleum industry, in particular to a connecting device for thick oil for fracturing in a sleeve, which comprises a connecting sleeve, a hanger, a rising flange, a gland and a double-male nipple, wherein the connecting sleeve is vertically arranged, the outer side of the middle part of the connecting sleeve is fixedly communicated with at least one bypass nipple, the inner side of the connecting sleeve corresponding to the position above the bypass nipple is fixedly provided with an inner ring platform, the hanger with the upper part positioned above the connecting sleeve is positioned on the inner ring platform, the interior of the hanger is provided with a channel which is communicated up and down, the upper end of the hanger is fixedly communicated with the lower end of the rising flange, the inner side of the lower end of the hanger is fixedly connected with the outer side of the upper end of the double-male nipple coaxially sleeved in the connecting sleeve, the utility model has reasonable and compact structure and convenient use, can be installed and replaced partial, has the characteristics of low cost, safety, labor saving, simplicity, convenience and high efficiency.
Description
Technical Field
The utility model relates to a technical field of oil industry well drilling wellhead assembly is a connecting device for viscous crude for casing internal pressure fracture.
Background
The thick oil thermal recovery process is the most mature process technology for developing and using thick oil at present, but if a conventional wellhead device is adopted, the situations of wellhead runaway and channeling, casing damage and the like can be caused in the production process of an oil well, and the thermal recovery well can be scrapped seriously, so that great loss is brought to safe production. But the thermal recovery casing head structure aspect of adopting at present exists and is connected inconveniently with the well head, the sleeve pipe is at the adverse effect of the thermal elongation of high temperature effect to later stage oil recovery operation and oil recovery tree bottom flange and the overhead joint installation part of thermal recovery casing many and the installation loaded down with trivial details, the scheduling problem of the rate of utilization difference.
Disclosure of Invention
The utility model provides a device has overcome above-mentioned prior art not enough, and it can effectively solve current viscous crude exploitation wellhead assembly installation part many and install loaded down with trivial details, the poor and sleeve pipe of rate of utilization problem at the problem of the extension of being heated of high temperature effect.
The technical scheme of the utility model is realized through following measure: a connecting device for thick oil used for fracturing in a sleeve comprises a connecting sleeve, a hanger, a lifting flange, a gland and double male pipe nipples, wherein the connecting sleeve is vertically arranged, the outer side of the middle part of the connecting sleeve is fixedly communicated with at least one bypass pipe nipple, an inner ring platform is fixed on the inner side of the connecting sleeve corresponding to the position above the bypass short section, a hanger with the upper part positioned above the connecting sleeve is positioned on the inner ring platform, a channel which is communicated up and down is arranged in the hanger, the outer side of the middle part of the hanger corresponding to the position above the connecting sleeve is fixedly provided with a first outer ring platform, the gland is cylindrical, the lower end of the gland is opened, the center of the upper end of the gland is provided with a through hole, the inner side of the lower part of the gland is fixedly connected with the outer side of the upper part of the connecting sleeve in a sealing manner, the inner wall of the upper part of the gland is contacted with the upper end surface of the first outer ring platform, the lower end of the lifting flange is fixedly communicated with the upper end of the hanger, and the inner side of the lower part of the connecting sleeve is.
The following are further optimization or/and improvement of the technical scheme of the utility model:
the inner side face of the upper end of the inner ring platform can be a conical face with a large upper part and a small lower part, a second outer ring platform is fixed on the outer side of the lower part of the hanger corresponding to the lower end position of the first outer ring platform, the diameter of the second outer ring platform is larger than that of the first outer ring platform, the outer side face of the lower end of the second outer ring platform is a conical face matched with the inner side face of the upper end of the inner ring platform, and the inner side of the lower end of the second outer ring platform is in threaded connection with the outer side.
The upper part and the lower part of the connecting sleeve are both provided with external connecting threads, the lower part of the gland is provided with internal connecting threads, and the inner side of the lower part of the gland is screwed with the outer side of the upper part of the connecting sleeve.
The upper end of the rising flange may have an upper flange, and the inner side of the lower end of the rising flange is screwed with the outer side of the upper end of the hanger.
A plurality of sealing rings can be fixedly arranged between the inner side of the upper part of the connecting sleeve and the outer side of the lower part of the hanger at intervals up and down.
The upper end face of the second outer ring table can be positioned below the upper end face of the connecting sleeve, and the inner side of the upper end of the connecting sleeve is connected with the outer side of the upper end of the second outer ring table in a welding mode.
The utility model has the advantages of reasonable and compact structure, convenient to use can install, change partial subassembly when changeing to adopt viscous crude exploitation, then pours into high temperature fluid into and carries out viscous crude exploitation, and the installation is simple swift, has characteristics with low costs, safety, laborsaving, simple and convenient, that the utilization ratio is high.
Drawings
Fig. 1 is a schematic sectional view of the best embodiment of the present invention in a front view.
The codes in the figures are respectively: 1 is the adapter sleeve, 2 is the upper flange, 3 is the hanger, 4 is the gland, 5 is the bypass nipple joint, 6 is two public nipple joints, 7 is the rising flange.
Detailed Description
The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention will be further described with reference to the following examples and drawings:
as shown in the attached figure 1, the connecting device for thick oil for casing internal fracturing comprises a connecting casing 1, a hanger 3, a lifting flange 7, a gland 4 and a double male pipe nipple 6, wherein the connecting casing 1 is vertically arranged, the outer side of the middle part of the connecting casing 1 is fixedly communicated with at least one bypass pipe nipple 5, the inner side of the connecting casing 1 corresponding to the position above the bypass pipe nipple 5 is fixedly provided with an inner ring platform, the hanger 3 with the upper part positioned above the connecting casing 1 is positioned on the inner ring platform, the interior of the hanger 3 is provided with a channel which is communicated up and down, the outer side of the middle part of the hanger 3 corresponding to the position above the connecting casing 1 is fixedly provided with a first outer ring platform, the gland 4 is cylindrical, the lower end of the gland 4 is opened, the center of the upper end of the gland is provided with a through hole, the inner side of the lower part of the gland 4 is fixedly connected with the outer side of the upper part of the, the inner side of the lower part of the connecting sleeve 1 is coaxially sleeved with a double male short section 6, the outer side of the upper end of which is fixedly connected with the inner side of the lower end of the hanger 3.
Rising flange 7 direct mount is in the upper end of hanger 3, and the installation is simple, swift, and the inner ring platform plays the effect that spacing hanger 3 moved down, and gland 4 uses with the cooperation of the first outer ring platform on the hanger 3 and plays the effect that the restriction hanger 3 moved up, and bypass nipple 5 is used for connecting the valve.
The thick oil connecting device for fracturing in the casing can be further optimized or/and improved according to actual needs:
as shown in the attached drawing 1, the inner side surface of the upper end of the inner ring table is a conical surface with a large upper part and a small lower part, a second outer ring table is fixed on the outer side of the lower part of the hanger 3 corresponding to the lower end of the first outer ring table, the diameter of the second outer ring table is larger than that of the first outer ring table, the outer side surface of the lower end of the second outer ring table is a conical surface matched with the inner side surface of the upper end of the inner ring table, and the inner side of the lower end of the second outer ring table is in threaded connection with the.
Through the second outer ring platform lower extreme lateral surface for with the inner ring platform upper end medial surface assorted conical surface, can increase the area of contact of the 3 lower extremes outsides of hanger and inner ring platform, improve the sealing performance between connecting sleeve 1 and hanger 3.
As shown in figure 1, the upper part and the lower part of the connecting sleeve 1 are both provided with external connecting threads, the lower part of the gland 4 is provided with internal connecting threads, and the inner side of the lower part of the gland 4 is screwed with the outer side of the upper part of the connecting sleeve 1. Threaded connection easy to assemble and dismantlement, convenient to use is nimble, and connecting sleeve 1 lower part outside is equipped with outer connecting thread, is convenient for connecting sleeve 1 and top layer sleeve pipe fixed connection.
As shown in fig. 1, the upper end of the rising flange 7 has an upper flange 2, and the lower end inside of the rising flange 7 is screwed with the upper end outside of the hanger 3. The upper flange 2 is convenient to be connected with a thickened oil production tree, the threaded connection is convenient to mount, connect and dismount, and the use is convenient and flexible.
As shown in the attached figure 1, a plurality of sealing rings are fixedly arranged between the inner side of the upper part of the connecting sleeve 1 and the outer side of the lower part of the hanger 3 at intervals up and down. The sealing ring can further increase the sealing performance.
As shown in fig. 1, the upper end surface of the second outer ring table is located below the upper end surface of the connecting sleeve 1, and the inner side of the upper end of the connecting sleeve 1 is connected with the outer side of the upper end of the second outer ring table in a welding manner. The welded connection increases the stability.
Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.
Claims (10)
1. A connecting device for thickened oil used for fracturing in a sleeve is characterized by comprising a connecting sleeve, a hanger, a lifting flange, a gland and double male pipe nipples, wherein the connecting sleeve is vertically arranged, the outer side of the middle part of the connecting sleeve is fixedly communicated with at least one bypass pipe nipple, an inner ring platform is fixed on the inner side of the connecting sleeve corresponding to the position above the bypass short section, a hanger with the upper part positioned above the connecting sleeve is positioned on the inner ring platform, a channel which is communicated up and down is arranged in the hanger, the outer side of the middle part of the hanger corresponding to the position above the connecting sleeve is fixedly provided with a first outer ring platform, the gland is cylindrical, the lower end of the gland is opened, the center of the upper end of the gland is provided with a through hole, the inner side of the lower part of the gland is fixedly connected with the outer side of the upper part of the connecting sleeve in a sealing manner, the inner wall of the upper part of the gland is contacted with the upper end surface of the first outer ring platform, the lower end of the lifting flange is fixedly communicated with the upper end of the hanger, and the inner side of the lower part of the connecting sleeve is.
2. The thick oil connecting device for casing internal fracturing as claimed in claim 1, wherein the inner side surface of the upper end of the inner ring platform is a tapered surface with a large upper part and a small lower part, the outer side of the lower part of the hanger corresponding to the lower end of the first outer ring platform is fixed with a second outer ring platform, the diameter of the second outer ring platform is larger than that of the first outer ring platform, the outer side surface of the lower end of the second outer ring platform is a tapered surface matched with the inner side surface of the upper end of the inner ring platform, and the inner side of the lower end of the second outer ring platform is screwed with the outer side of the upper end of the.
3. The connecting device for thick oil for intracasing fracturing as claimed in claim 1 or 2, wherein the connecting casing is provided with external connecting threads at both upper and lower portions thereof, the lower portion of the gland is provided with internal connecting threads, and the inner side of the lower portion of the gland is screwed with the outer side of the upper portion of the connecting casing.
4. The apparatus for connecting thick oil for intracasing fracturing as claimed in claim 3, wherein the raised flange has an upper flange at its upper end, and the inner side of the lower end of the raised flange is screwed with the outer side of the upper end of the hanger.
5. The apparatus for connecting thick oil to casing inner fracturing as claimed in claim 1 or 2, wherein the raised flange has an upper flange at its upper end, and the inner side of the lower end of the raised flange is screwed with the outer side of the upper end of the hanger.
6. The thick oil connecting device for the internal fracturing of the casing according to claim 1, 2 or 4, wherein a plurality of sealing rings are fixedly installed between the inner side of the upper part of the connecting casing and the outer side of the lower part of the hanger at intervals up and down.
7. The thick oil connecting device for the inner fracturing of the casing according to claim 3, wherein a plurality of sealing rings are fixedly installed between the inner side of the upper part of the connecting casing and the outer side of the lower part of the hanger at intervals up and down.
8. The thick oil connecting device for the inner fracturing of the casing according to claim 5, wherein a plurality of sealing rings are fixedly installed between the inner side of the upper part of the connecting casing and the outer side of the lower part of the hanger at intervals up and down.
9. The thick oil connecting device for the inner fracturing of the sleeve according to the claim 1, 2, 4, 7 or 8, characterized in that the upper end surface of the outer annular table is positioned below the upper end surface of the connecting sleeve, and the inner side of the upper end of the connecting sleeve is connected with the outer side of the upper end of the second outer annular table in a welding way.
10. The thick oil connecting device for intracasing fracturing as claimed in claim 6, wherein the upper end face of the outer annular table is located below the upper end face of the connecting casing, and the inner side of the upper end of the connecting casing is welded to the outer side of the upper end of the second outer annular table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021241040.2U CN212614658U (en) | 2020-06-30 | 2020-06-30 | Connecting device for thickened oil for fracturing in casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021241040.2U CN212614658U (en) | 2020-06-30 | 2020-06-30 | Connecting device for thickened oil for fracturing in casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212614658U true CN212614658U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021241040.2U Active CN212614658U (en) | 2020-06-30 | 2020-06-30 | Connecting device for thickened oil for fracturing in casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212614658U (en) |
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2020
- 2020-06-30 CN CN202021241040.2U patent/CN212614658U/en active Active
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