CN110735605A - double-layer continuous tube roller joint - Google Patents
double-layer continuous tube roller joint Download PDFInfo
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- CN110735605A CN110735605A CN201911105411.6A CN201911105411A CN110735605A CN 110735605 A CN110735605 A CN 110735605A CN 201911105411 A CN201911105411 A CN 201911105411A CN 110735605 A CN110735605 A CN 110735605A
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- 238000007789 sealing Methods 0.000 claims abstract description 93
- 238000004804 winding Methods 0.000 claims abstract description 26
- 239000012530 fluid Substances 0.000 claims description 40
- 238000012856 packing Methods 0.000 claims description 34
- 238000005553 drilling Methods 0.000 abstract description 30
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 20
- 239000010410 layer Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/021—Devices for subsurface connecting or disconnecting by rotation
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/02—Swivel joints in hose-lines
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention relates to the technical field of petroleum drilling equipment, in particular to a double-layer continuous pipe roller joint which comprises a high-pressure manifold, a hollow winding drum rotating shaft and a connecting pipe which are sequentially communicated, wherein the high-pressure manifold and the hollow winding drum rotating shaft are connected by a rotary sealing mechanism , the double-layer continuous pipe roller joint further comprises a connecting pipe II arranged in the hollow winding drum rotating shaft, the high-pressure manifold is provided with two external ports, ports are connected with the connecting pipe II by the rotary sealing mechanism II, the double-layer continuous pipe roller joint further comprises a junction pipe, the connecting pipe and the connecting pipe II are respectively communicated with the junction pipe, and a connecting pipe III communicated with the connecting pipe II is further arranged in the junction pipe.
Description
Technical Field
The invention relates to the technical field of petroleum drilling equipment, in particular to an double-layer continuous pipe roller joint.
Background
The basic operation of the conventional marine drilling technology is to place a casing or a riser between a drilling rig and the seabed to isolate seawater and ensure the normal operation of the drilling operation, but the method causes the fragile surface seabed to be damaged by high-pressure drilling mud circulating in the casing or the riser.
The problem can be well solved by adopting double-layer continuous pipe double-gradient drilling, the damage to the seabed surface layer in the drilling process is avoided, and the corresponding drilling accidents are avoided.
The winding of double-deck coiled tubing rule is on the drum reel, and at the drilling process, two external high-pressure line pass through drum end connector and double-deck coiled tubing high pressure sealing connection respectively, and external high-pressure line's rigidity, the cylinder rotates along with the drilling of rig and drives the rotation of drum end connector, consequently needs kinds to rotate at double gradient drilling in-process cylinder and can keep the joint of external pipeline rigidity.
Disclosure of Invention
In view of the above problems, the present invention aims to provide roller joints for double-layer continuous pipes.
In order to achieve the purpose, the invention adopts the technical scheme that:
double-layer continuous tube roller joint, a high-pressure tube manifold and a hollow drum rotating shaft which are sequentially communicated, wherein the high-pressure tube manifold is connected with the hollow drum rotating shaft through a rotary sealing mechanism , the double-layer continuous tube roller joint further comprises a connecting tube , a second connecting tube and a converging tube, the connecting tube and the second connecting tube are respectively communicated with the converging tube, the high-pressure tube manifold is provided with two external ports, external ports are communicated with the connecting tube , and external ports are communicated with the second connecting tube through the rotary sealing mechanism.
The high-pressure manifold and the hollow winding drum rotating shaft are connected through the rotary sealing mechanism , ports of the high-pressure manifold are connected with the second connecting pipe through the rotary sealing mechanism II, and therefore in the drilling process, the high-pressure manifold is kept unchanged in position when the roller rotates to drive the hollow winding drum rotating shaft and the second connecting pipe to rotate, namely the high-pressure manifold cannot rotate along with the second connecting pipe , and further two high-pressure pipelines connected with the ports of the high-pressure manifold are fixed in position.
Preferably, the high-pressure manifold comprises a pipeline joint and a pipeline joint II, the pipeline joint is connected with the hollow drum rotating shaft by the rotary sealing mechanism 0, the 1 end of the connecting pipe II extends out of the port of the pipeline joint 2 and is connected with the pipeline joint II by the rotary sealing mechanism , the connecting pipe II is connected with the port of the pipeline joint by the rotary sealing mechanism II, and the pipeline joint is connected with the hollow drum rotating shaft by the rotary sealing mechanism , so that the position of the pipeline joint is fixed in the process that the hollow drum rotating shaft is driven by the drum to rotate, the end of the connecting pipe II extends out of the port of the pipeline joint and is connected with the pipeline joint II by the rotary sealing mechanism II, the position of the pipeline joint II is fixed in the process that the drum rotates to drive the connecting pipe II to rotate, the position of the high-pressure manifold is kept unchanged in the process of the drum rotating, the position of the external high-pressure pipeline is guaranteed to be fixed, and the port of the connecting pipe joint is connected by the rotary sealing mechanism II, so that the connecting pipe joint acts.
Preferably, the second rotary sealing mechanism comprises a second shell, a plurality of second holders are arranged in the second shell, a second packing is arranged between the second holders, the second holders and the second packing form a second rotary cavity for accommodating the second connecting pipe, the inner wall of the second packing is in interference fit with the outer wall of the second connecting pipe, a second sealing strip is arranged on the second packing at the detachable end of the second shell, the second holders and the second packing form a second rotary cavity for accommodating the second connecting pipe, the second connecting pipe is arranged in the second rotary cavity, the inner wall of the second packing is in interference fit with the outer wall of the second connecting pipe, the second holding frame is embedded in the second shell, and the second connecting pipe is clamped in the second rotary cavity through the second holding frame, so that the second connecting pipe is kept stable in the high; and a second sealing strip embedded on a second packing at the detachable end of the second shell has a sealing function, and has the function of sealing the connecting part of the second connecting pipe and the second pipeline joint.
Preferably, pipeline joint two includes port portion and tight portion, port portion and tight portion adopt to connect the union to connect, tight portion can dismantle with casing and be connected, the fluid inlet end of taking over two meets with the fluid outlet end of pipeline joint two mutually, and port portion and tight portion adopt to connect the union to connect, and tight portion can dismantle with casing two link and be connected, and the fluid inlet end of taking over two meets with the fluid outlet end of pipeline joint two mutually, is favorable to high-pressure drilling fluid to follow pipeline joint two and directly gets into in taking over two.
Preferably, the pipeline joint includes a three-way pipe, an external pipe joint is provided at a fluid inlet end of the three-way pipe, the second connecting pipe is connected with 0 ports of the pipeline joint by using a rotary sealing mechanism 1, the hollow drum rotating shaft is connected with an extending pipe of another port by using a rotary sealing mechanism two, the pipeline joint includes a three-way pipe, high-pressure drilling fluid enters the pipeline joint along the external pipe joint, the second connecting pipe is connected with ports of the pipeline joint by using a rotary sealing mechanism , and the hollow drum rotating shaft is connected with the extending pipe of another port by using a rotary sealing mechanism two, so that the roller drives the hollow drum rotating shaft and the second connecting pipe to rotate, thereby ensuring high-pressure sealing and position fixing of the pipeline joint .
Preferably, the rotary sealing mechanism comprises a housing , a plurality of holders 1 are arranged in the housing 0, packing sets 3 are arranged between the holders 2, the holder 4 and the packing sets 5 form a rotary cavity 6 for accommodating the extension tube, the inner wall of the holder 7 is in interference fit with the outer wall of the extension tube, the housing 8 is detachably connected with the hollow reel rotating shaft, the holder 9 and the packing sets form a rotary cavity 0 for accommodating the extension tube, the extension tube is arranged in the rotary cavity 1, the inner wall of the holder 2 is in interference fit with the outer wall of the extension tube, the holder is embedded in the housing , the extension tube is clamped in the rotary cavity through the holder to keep the extension tube stable under a high pressure state, and the sealing strips embedded in the packing sets at the detachable end of the housing have a sealing function of sealing the connecting part of the extension tube and the hollow reel rotating shaft.
Preferably, the high-pressure drilling fluid drilling device further comprises a third connecting pipe, a fluid inlet end of the third connecting pipe is butted with a fluid outlet end of the second connecting pipe, the third connecting pipe is connected with the confluence pipe through a clamping mechanism , the third connecting pipe is clamped in the confluence pipe through a clamping mechanism , and the fluid inlet end of the third connecting pipe is butted with the fluid outlet end of the second connecting pipe, so that the high-pressure drilling fluid can directly enter the third connecting pipe along the second connecting pipe.
Preferably, the clamping mechanism includes a flange and a flange II, the flange is fixedly connected to the port of the junction pipe, a fastening member for clamping and sealing the connection pipe III is arranged at the connection part of the flange and the flange II, a rotary sealing mechanism III for sealing the connection pipe III is arranged at the connection part of the flange II and the connection pipe II, the fastening member can fix the connection pipe III relative to the junction pipe, high-pressure fluid is prevented from impacting the connection pipe III to displace, the sealing function of the fastening member is capable of preventing liquid entering between the junction pipe and the connection pipe III from flowing back into the connection pipe II, and the sealing function of the rotary sealing mechanism III is capable of preventing liquid in the connection pipe II from entering between the junction pipe and the connection pipe III along a gap.
Preferably, the junction pipe is a three-way pipe, the connection pipe and the connection pipe II are respectively connected with the junction pipe through a flange or a union, the junction pipe is a three-way pipe, and the connection pipe and the connection pipe II are respectively connected with the junction pipe through a flange or a union, so that the connection pipe and the connection pipe II can be conveniently mounted and dismounted.
Preferably, the part of the second connecting pipe, which is located in the hollow winding drum rotating shaft, is concentrically arranged with the hollow winding drum rotating shaft, and the part of the second connecting pipe, which is located in the hollow winding drum rotating shaft, is concentrically arranged with the hollow winding drum rotating shaft, so that the pressure balance of the drilling fluid at each part between the second connecting pipe and the hollow winding drum rotating shaft is favorably ensured.
Preferably, the connecting pipe II comprises an inner pipe section and an outer pipe section, the connecting pipe and the outer pipe section are communicated with the rotating shaft of the hollow winding drum through an inclined three-way pipe, and a clamping mechanism II for fixedly sealing the inner pipe section is arranged at the connecting part of the inclined three-way pipe and the outer pipe section.
Compared with the prior art, the double-layer continuous pipe roller joint has the advantages that the high-pressure manifold is connected with the hollow winding drum rotating shaft through the rotary sealing mechanism , ports of the high-pressure manifold are connected with the second connecting pipe through the rotary sealing mechanism II, so that the position of the high-pressure manifold is kept unchanged when the roller rotates to drive the hollow winding drum rotating shaft and the second connecting pipe to rotate in the drilling process, the positions of two high-pressure pipelines connected with the ports of the high-pressure manifold are fixed, the device is simple in structure, the high-pressure manifold is connected with the hollow winding drum rotating shaft through the rotary sealing mechanism , the external port of the high-pressure manifold is connected with the second connecting pipe through the rotary sealing mechanism II, and the roller rotates to keep the position of an external pipeline fixed in the double-gradient drilling process.
The beneficial effects of other embodiments of the application are as follows:
1. the pipeline joint is connected with the hollow drum rotating shaft through a rotary sealing mechanism , so that in the process that the hollow drum rotating shaft is driven to rotate by the rotation of the roller, the position of the pipeline joint is fixed, the end of the second connecting pipe extends out of the port of the pipeline joint and is connected with the second pipeline joint through a rotary sealing mechanism, in the process that the second connecting pipe is driven to rotate by the rotation of the roller, the position of the second pipeline joint is fixed, the position of a high-pressure manifold in the rotation process of the roller is kept unchanged, the position of an external high-pressure pipeline is further fixed, the second connecting pipe is connected with the port of the pipeline joint through the second rotary sealing mechanism, and the second connecting pipe has the effect of sealing the connecting part of the second connecting pipe.
2. The second retainer and the second packing form a second rotating cavity for containing the second connecting pipe, the second connecting pipe is arranged in the second rotating cavity, the inner wall of the second packing is in interference fit with the outer wall of the second connecting pipe, the second retainer is embedded in the shell , the second connecting pipe is clamped in the second rotating cavity through the second retainer, so that the second connecting pipe is kept stable in the high-pressure rotating process, and the second sealing strip embedded in the second packing at the detachable end of the second shell has a sealing function and has a function of sealing the connecting part of the second connecting pipe and the second pipeline connector.
3. The port part and the fastening part are connected through a connection union, the fastening part is detachably connected with the connecting end of the second shell, and the fluid inlet end of the second connecting pipe is butted with the fluid outlet end of the second pipeline connector, so that high-pressure drilling fluid can directly enter the second connecting pipe along the second pipeline connector.
4. The pipeline joint comprises a three-way pipe, high-pressure drilling fluid enters the pipeline joint along an external pipe joint, the second connecting pipe is connected with ports of the pipeline joint through a rotary sealing mechanism , and a rotating shaft of the hollow winding drum is connected with an extension pipe of the other port through a rotary sealing mechanism, so that the rotary drum drives the rotating shaft of the hollow winding drum and the second connecting pipe to rotate, and the high-pressure sealing and position fixing of the pipeline joint are guaranteed.
5. The retainer and the packing form a rotating cavity 0 for accommodating the extension pipe, the extension pipe is arranged in the rotating cavity , the inner wall of the retainer is in interference fit with the outer wall of the extension pipe, the retainer is embedded in the shell , the extension pipe is clamped in the rotating cavity through the retainer , so that the extension pipe is kept stable in a high-pressure state, and the packing at the detachable end of the shell is embedded with a sealing strip which has the function of sealing the connecting part of the extension pipe and the hollow winding drum rotating shaft.
6. The connecting pipe III is clamped and arranged in the junction pipe through the clamping mechanism , and the fluid inlet end of the connecting pipe III is butted with the fluid outlet end of the connecting pipe II, so that high-pressure drilling fluid can directly enter the connecting pipe III along the connecting pipe II.
7. The fastener can fix the three connecting pipes relative to the junction pipe, so that high-pressure fluid is prevented from impacting the three connecting pipes to displace, the sealing function of the fastener can prevent liquid entering between the junction pipe and the three connecting pipes from flowing back to the second connecting pipes, and the sealing function of the rotary sealing mechanism can prevent liquid in the second connecting pipes from entering between the junction pipe and the third connecting pipes along gaps.
8. The junction pipe is a three-way pipe, and the connecting pipe and the connecting pipe II are respectively connected with the junction pipe through flanges or unions, so that the connecting pipe and the connecting pipe II can be conveniently mounted and dismounted.
9. The part of the second connecting pipe, which is positioned in the hollow winding drum rotating shaft, is arranged concentrically with the hollow winding drum rotating shaft, so that the pressure balance of the drilling fluid at each part between the second connecting pipe and the hollow winding drum rotating shaft is ensured.
Drawings
FIG. 1 is a schematic structural view of roller joints for double-layer coiled tubing;
FIG. 2 is a schematic view of the structure of FIG. 1 mounted on a drum;
FIG. 3 is a schematic diagram of another forms of roll joints for double-layer coiled tubing according to the present invention;
FIG. 4 is a schematic view of the installation structure of the hollow drum rotating shaft, the inclined tee pipe, the connecting pipe and the connecting pipe II in FIG. 3 according to the present invention;
FIG. 5 is a schematic diagram of the structure of the line connector , the rotary seal mechanism and the rotary seal mechanism II of the present invention;
FIG. 6 is a schematic structural view of a second pipeline joint and a second rotary sealing mechanism according to the present invention;
FIG. 7 is a diagram showing a structural implementation of the junction tube of the present invention.
Reference numerals
1-high-pressure manifold, 1 a-pipeline joint , 1a 1-external pipe joint, 1a 2-extension pipe, 1 b-pipeline joint two, 1b 1-port part, 1b 2-fastening part, 1b 3-connecting union, 2-hollow drum rotating shaft, 3-connecting pipe , 4-rotary sealing mechanism , 4 a-shell , 4 b-retainer , 4 c-packing , 4 d-sealing strip , 5-connecting pipe two, 51-internal pipe section, 52-external pipe section, 6-rotary sealing mechanism two, 6 a-shell two, 6 b-retainer two, 6 c-packing two, 6 d-sealing strip two, 7-junction pipe, 8-connecting pipe three, 9-clamping mechanism , 91-flange , 92-fastener, 93-flange two, 94-rotary sealing mechanism three, 10-rotary drum, 11-internal continuous pipe, 12-external continuous pipe, 13-oblique clamping mechanism 14-three-tee pipe.
Detailed Description
For purposes of making the objects, aspects and advantages of the present invention more apparent, the present invention will be described in detail below with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, fig. 2, fig. 5, fig. 6 and fig. 7, the double-layer continuous pipe roller joint of the present embodiment includes a high-pressure pipe manifold 1, a pipe joint a, an external pipe joint 1a1, an extension pipe 1a2, a pipe joint two 1b, a port 1b1, a fastening portion 1b2, a connection union 1b3, a hollow reel rotating shaft 2, a pipe joint , a rotary sealing mechanism , a housing a, a cage b, a packing c, a sealing strip d, a second 5, an inner pipe segment 51, an outer pipe segment 52, a rotary sealing mechanism two 6, a housing two 6a, a cage two 6b, a packing two 6c, a sealing strip two 6d, a converging pipe 7, a pipe joint three 8, a clamping mechanism , a flange , a fastener 92, a flange two 93, a three 94, a rotary sealing mechanism three 10, an internal continuous pipe 11, an external continuous pipe 12, an inclined three-way pipe 13, a clamping mechanism 4614, a high-pressure pipe and a high-pressure drilling fluid flowing through a rotary shaft 2, a rotary mechanism, a rotary shaft 2, a rotary mechanism, a rotary shaft mechanism, a high-pressure pipe assembly, a rotary mechanism, a rotary shaft assembly, a high-pressure pipe assembly, a rotary shaft assembly, a rotary mechanism, a high-pressure pipe assembly, a rotary mechanism, a high-pressure pipe assembly, a rotary mechanism, a high-pressure pipe assembly, a rotary mechanism, a high-pressure pipe assembly, a rotary mechanism, a high-pressure pipe assembly.
The pipeline joint 1a is connected with the hollow reel rotating shaft 2 by a rotary sealing mechanism 4, so that in the process that the roller 10 rotates to drive the hollow reel rotating shaft 2 to rotate, the position of the pipeline joint 1a is fixed, the end of the connecting pipe II 5 extends out of the port of the pipeline joint 1a and is connected with the pipeline joint II 1b by a rotary sealing mechanism II 6, so that in the process that the roller 10 rotates to drive the connecting pipe II 5 to rotate, the position of the pipeline joint II 1b is fixed, the position of the high-pressure manifold 1 in the rotation process of the roller 10 is kept unchanged, the position of an external high-pressure pipeline is further ensured to be fixed, the connecting pipe II 5 is connected with the port of the pipeline joint 1a by the rotary sealing mechanism II 6, and the connecting part of the connecting pipe II 5 and the port of the pipeline joint 1a is sealed in the rotation process of.
The retainer II 6b and the packing II 6c form a rotating cavity II for containing the connecting pipe II 5, the connecting pipe II 5 is arranged in the rotating cavity II, the inner wall of the packing II 6c is in interference fit with the outer wall of the connecting pipe II 5, the retainer II 6b is embedded in the shell II 6a, and the connecting pipe II 5 is clamped in the rotating cavity II through the retainer II 6b, so that the connecting pipe II 5 is kept stable in the high-pressure rotating process; and a second sealing strip 6d is embedded on a second packing 6c at the detachable end of the second shell 6a and has the function of sealing the connecting part of the second connecting pipe 5 and the second pipeline joint 1 b.
The port part 1b1 and the fastening part 1b2 are connected by adopting a connecting union 1b3, the fastening part 1b2 is detachably connected with the connecting end of the second shell 6a, and the fluid inlet end of the second connecting pipe 5 is butted with the fluid outlet end of the second pipeline connector 1b, so that high-pressure drilling fluid can directly enter the second connecting pipe 5 along the second pipeline connector 1 b.
The pipeline joint 1a comprises a three-way pipe, high-pressure drilling fluid enters the pipeline joint 1a along the external pipe joint 1a1, the second connecting pipe 5 is connected with one of ports of the pipeline joint 1a by adopting a rotary sealing mechanism 4, the hollow reel rotating shaft 2 is connected with the extension pipe 1a2 of the other port by adopting a rotary sealing mechanism two 6, so that the high-pressure sealing and position fixing of the pipeline joint 1a are ensured in the process that the rotary drum 10 drives the hollow reel rotating shaft 2 and the second connecting pipe 5 to rotate.
The retainer 4b and the packing set 4c form a rotating cavity 0 for accommodating the extension tube 1a2, the extension tube 1a2 is placed in the rotating cavity 1, the inner wall of the packing set 4c is in interference fit with the outer wall of the extension tube 1a2, the retainer 4b is embedded in the shell 4a, the extension tube 1a2 is clamped in the rotating cavity through the retainer 4b, so that the extension tube 1a2 is kept stable in a high-pressure state, and the sealing strip 4d embedded in the packing set 4c at the detachable end of the shell 4a has a sealing function and has a function of sealing the connecting part of the extension tube 1a2 and the hollow reel rotating shaft 2.
The connecting pipe III 8 is clamped in the confluence pipe 7 through the clamping mechanism 9, and the fluid inlet end of the connecting pipe III 8 is butted with the fluid outlet end of the connecting pipe II 5, so that high-pressure drilling fluid can directly enter the connecting pipe III 8 along the connecting pipe II 5.
The clamping mechanism 9 comprises a flange part 91 and a flange part two 93, a fastener 92 can fix a connecting pipe three 8 relative to the junction pipe 7 to avoid high-pressure fluid from impacting the connecting pipe three 8 to be displaced, the sealing function of the fastener 92 can prevent liquid entering between the junction pipe 7 and the connecting pipe three 8 from flowing backwards into the connecting pipe two 5, and the sealing function of the rotary sealing mechanism three 94 can prevent liquid in the connecting pipe two 5 from entering between the junction pipe 7 and the connecting pipe three 8 along a gap.
The junction pipe 7 is a three-way pipe, and the connecting pipe 3 and the connecting pipe II 5 are respectively connected with the junction pipe 7 by flanges or unions, so that the connecting pipe 3 and the connecting pipe II 5 can be conveniently mounted and dismounted.
The part of the second connecting pipe 5, which is positioned in the hollow winding drum rotating shaft 2, is concentric with the hollow winding drum rotating shaft 2, so that the pressure balance of the drilling fluid at each part between the second connecting pipe 5 and the hollow winding drum rotating shaft 2 is favorably ensured.
Example 2
As shown in fig. 3 and fig. 4, the present embodiment is different from embodiment 1 in that the second connection pipe 5 includes an inner pipe section 51 and an outer pipe section 52, a second clamping mechanism 14 for fixedly sealing the inner pipe section 51 is disposed at a connection portion of the angled tee pipe 13 and the outer pipe section 52, the inner pipe section 51 can be prevented from being displaced by high-pressure fluid due to the clamping function of the second clamping mechanism 14, the liquid in the angled tee pipe 13 can be prevented from entering the outer section 52 along a gap by the sealing function of the second clamping mechanism, and the connection pipe 3 and the outer pipe section 52 are connected to the hollow drum rotating shaft 2 by using the angled tee pipe 13, so that the connection pipe 3, the outer pipe section 52 and the hollow drum rotating shaft 2 are convenient to install, and have beneficial.
Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and therefore, any modifications or equivalent substitutions may be made thereto, and is intended to cover the technical solutions and modifications without departing from the spirit and scope of the present invention, which are also intended to be covered by the claims.
Claims (11)
- The double-layer continuous pipe roller joint is characterized by comprising a high-pressure manifold (1) and a hollow drum rotating shaft (2) which are sequentially communicated, wherein the high-pressure manifold (1) and the hollow drum rotating shaft (2) are connected through a rotary sealing mechanism (4), a connecting pipe (3), a connecting pipe II (5) and a converging pipe (7) are further included, the connecting pipe (3) and the connecting pipe II (5) are respectively communicated with the converging pipe (7), two external ports are arranged on the high-pressure manifold (1), external ports are communicated with the connecting pipe (3), and the other external ports are communicated with the connecting pipe II (5) through a rotary sealing mechanism II (6).
- 2. The coiled tubing roller joint of claim 1, wherein the high pressure manifold (1) comprises a pipeline joint (1 a) and a pipeline joint two (1 b), the pipeline joint (1 a) is connected with the hollow drum rotating shaft (2) by the rotary sealing mechanism (4), the end of the connecting tube two (5) extends out of the port of the pipeline joint (1 a) and is connected with the pipeline joint two (1 b) by the rotary sealing mechanism two (6), and the connecting tube two (5) is connected with the port of the pipeline joint (1 a) by the rotary sealing mechanism two (6).
- 3. The double-layer connecting pipe roller joint according to claim 2, wherein the second connecting pipe (5) comprises an inner pipe section (51) and an outer pipe section (52), the connecting pipe (3) and the outer pipe section (52) are communicated with the hollow drum rotating shaft (2) by adopting an inclined tee pipe (13), and a second clamping mechanism (14) for fixedly sealing the inner pipe section (51) is arranged at the connecting part of the inclined tee pipe (13) and the outer pipe section (52).
- 4. The double-layer continuous pipe roller joint of claim 3, wherein the second rotary sealing mechanism (6) includes a second casing (6 a), a plurality of second holders (6 b) are provided in the second casing (6 a), a second packing (6 c) is provided between the second holders (6 b), the second holders (6 b) and the second packing (6 c) form a second rotary cavity for accommodating the second connecting pipe (5), the inner wall of the second packing (6 c) is in interference fit with the outer wall of the second connecting pipe (5), and a second sealing strip (6 d) is provided on the second packing (6 c) at the detachable end of the second casing (6 a).
- 5. kinds of double-layer continuous pipe roller joint according to claim 2, wherein the pipeline joint (1 a) comprises a tee, the fluid inlet end of the tee is provided with an external pipe joint (1 a 1), the second connecting pipe (5) is connected with the pipeline joint (1 a), ports of the pipe joint are connected by a rotary sealing mechanism (4), and the hollow reel rotating shaft (2) is connected with an extending pipe (1 a 2) of another port by a rotary sealing mechanism two (6).
- 6. The double-layer continuous pipe roller joint according to claim 3, wherein the pipeline joint II (1 b) comprises a port part (1 b 1) and a fastening part (1 b 2), the port part (1 b 1) and the fastening part (1 b 2) are connected by a union (1 b 3), the fastening part (1 b 2) is detachably connected with the casing II (6 a), and the fluid inlet end of the connecting pipe II (5) is butted with the fluid outlet end of the pipeline joint II (1 b).
- 7. The double-layer continuous tube roller joint of claim 2, wherein the rotary sealing mechanism (4) includes a housing 0 (4 a), the housing 1 (4 a) has a plurality of retainers 2 (4 b), packing 4 (4 c) are disposed between the retainers 3 (4 b), the retainers (4 b) and the packing (4 c) form a rotary cavity for accommodating the extension tube (1 a 2), the inner wall of the packing (4 c) is in interference fit with the outer wall of the extension tube (1 a 2), a sealing strip (4 d) is disposed on the packing (4 c) at the detachable end of the housing (4 a), and the housing (4 a) is detachably connected with the hollow drum shaft (2).
- 8. The roller joint for double-layer continuous pipes according to claim 1, further comprising a third connecting pipe (8), wherein the fluid inlet end of the third connecting pipe (8) is butted with the fluid outlet end of the second connecting pipe (5), and the third connecting pipe (8) is connected with the confluence pipe (7) by a clamping mechanism (9).
- 9. kinds of double-layer connecting pipe roller joints according to claim 8, wherein the clamping mechanism comprises a flange (91) and a second flange (93), the flange (91) is fixedly connected with the port of the confluence pipe (7), the connecting part of the flange (91) and the second flange (93) is provided with a fastening piece (92) for clamping the third sealed connecting pipe (8), and the connecting part of the second flange (93) and the second connecting pipe (5) is provided with a third rotary sealed mechanism (94) for sealing the third sealed connecting pipe (8).
- 10. The kinds of double-layer connecting pipe roller joints according to claim 1, wherein the confluent pipe (7) is a three-way pipe, and the connecting pipe (3) is connected with the confluent pipe (7) by a flange or a union.
- 11. The double-layer connecting pipe roller joint as claimed in any one of claims 1 to 10 to , wherein the portion of the second connecting pipe (5) located inside the hollow winding drum rotating shaft (2) is concentrically arranged with the hollow winding drum rotating shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911105411.6A CN110735605B (en) | 2019-11-13 | 2019-11-13 | Double-layer coiled tubing roller joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911105411.6A CN110735605B (en) | 2019-11-13 | 2019-11-13 | Double-layer coiled tubing roller joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110735605A true CN110735605A (en) | 2020-01-31 |
| CN110735605B CN110735605B (en) | 2021-04-02 |
Family
ID=69272747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911105411.6A Active CN110735605B (en) | 2019-11-13 | 2019-11-13 | Double-layer coiled tubing roller joint |
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| CN (1) | CN110735605B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112554813A (en) * | 2020-12-09 | 2021-03-26 | 华信唐山石油装备有限公司 | Continuous concentric tube roller device and method |
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| CN103423540A (en) * | 2012-05-25 | 2013-12-04 | 中国石油天然气集团公司 | Multichannel rotary connector |
| CN206449331U (en) * | 2017-02-07 | 2017-08-29 | 苏州道森钻采设备股份有限公司 | A kind of L-shaped swivel joint for roller of continuous oil pipe |
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| EP1293716A3 (en) * | 2001-09-13 | 2004-01-07 | FMC Technologies, Inc. | Coiled tubing swivel with stepped bearing races |
| CN201314227Y (en) * | 2008-12-17 | 2009-09-23 | 中国石油天然气集团公司 | Coiled tubing logging reel unit |
| CN201902738U (en) * | 2010-12-17 | 2011-07-20 | 中国石油天然气集团公司 | Continuous pipe working rig high-pressure rotary joint |
| CN202132635U (en) * | 2011-07-25 | 2012-02-01 | 烟台杰瑞石油装备技术有限公司 | Rotary joint for roller of continuous oil pipe |
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| CN206449331U (en) * | 2017-02-07 | 2017-08-29 | 苏州道森钻采设备股份有限公司 | A kind of L-shaped swivel joint for roller of continuous oil pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554813A (en) * | 2020-12-09 | 2021-03-26 | 华信唐山石油装备有限公司 | Continuous concentric tube roller device and method |
| CN112554813B (en) * | 2020-12-09 | 2022-07-08 | 华信唐山石油装备有限公司 | Continuous concentric tube roller device and method |
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| CN110735605B (en) | 2021-04-02 |
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