CN113819321A - Hard tube connecting device and manifold system thereof - Google Patents
Hard tube connecting device and manifold system thereof Download PDFInfo
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- CN113819321A CN113819321A CN202111064542.1A CN202111064542A CN113819321A CN 113819321 A CN113819321 A CN 113819321A CN 202111064542 A CN202111064542 A CN 202111064542A CN 113819321 A CN113819321 A CN 113819321A
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- 210000001503 joint Anatomy 0.000 claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 20
- 238000005452 bending Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 238000005553 drilling Methods 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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- Engineering & Computer Science (AREA)
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- 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 oil and gas drilling equipment, in particular to a hard pipe connecting device which comprises at least one non-concentric connecting pipe joint, wherein the non-concentric connecting pipe joint comprises a pipe body and first flange plates arranged at two ends of the pipe body, the two first flange plates are parallel to each other, the distance between the axes of the two first flange plates is H, H is larger than 0, and the plurality of non-concentric connecting pipe joints are subjected to butt joint combination of different numbers and different arrangement structures, so that the hard pipe connecting device can be suitable for smooth connection of to-be-connected surfaces with different radial distance differences in space, is wide in application range and is more in application scene.
Description
Technical Field
The invention relates to the technical field of oil and gas drilling equipment, in particular to a hard pipe connecting device and a manifold system thereof.
Background
In the field of oil, gas and other subterranean resource recovery, in order to facilitate the recovery of oil, gas and other subterranean resources, it is often necessary to extract the resources using a drilling and production system that penetrates the drilling and production well into the formation, the drilling and production well may be subjected to a fracturing process that creates one or more man-made fractures in the formation, such fracturing process typically comprising injecting a fracturing fluid, often a mixture comprising sand and water, into the well to increase the pressure of the well and form the man-made fractures, the fracturing fluid typically being transported through a fracturing manifold to one or more wellheads via a fracturing line, but the fracturing line connecting the fracturing manifold and the wellheads, the fracturing pump and the fracturing manifold is typically large and heavy, making the adjustment of the connection between the fracturing manifold and the wellheads very difficult.
At present, the fracturing pipeline of the ground part of the domestic fracturing site generally adopts a high-pressure union pipeline, the high-pressure union pipeline consists of a plurality of unions and a plurality of elbows, and adopts a structural form of union threaded connection and flange rigid connection, and the prior art mainly has the following defects:
1. hammering and beating are needed during installation, so that the thread is easy to damage and break, and the safety performance is poor;
2. due to the difference between the actual distances between wells, between the well mouths and the fracturing manifolds, between the fracturing pumps and the fracturing manifolds and the installation directions of the surfaces to be connected, the length of the fracturing pipeline and the installation directions of the connection surfaces at two ends of the fracturing pipeline cannot be accurately preset, so that the fracturing pipelines cannot be uniformly prepared and need to be adjusted on site;
3. adopt rigid connection, when distance or position need be adjusted, generally through increasing angle logical, straight tube, turn to 90 at least twice to the pipeline, the process is more complicated, wastes time and energy, reduces work efficiency, and fluidic turns to many times, brings very big inconvenience for equipment fixing and fluid smooth transportation.
Therefore, there is a need for a solution to solve the above problems.
Disclosure of Invention
The invention aims to: the technical problems that the safety performance of the existing fracturing pipeline is poor, the number of connecting parts is large, the convenient and fast effective connection between the parts cannot be guaranteed, the installation structure is complex, and the distance and the angle are difficult to adjust are solved.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a hard tube connecting device, includes at least one non-concentric connecting tube festival, non-concentric connecting tube festival includes the body and sets up the first ring flange at body both ends, two first ring flange is parallel to each other, two the axis of first ring flange has distance difference h, and h > 0.
According to the hard pipe connecting device, the non-concentric connecting pipe joints are adopted, the non-concentric connecting pipe joints are rotated along the end face of the first flange plate at one end, the position change of the end face of the first flange plate at the other end in a plane can be realized, the hard pipe connecting device can realize the smooth connection of to-be-connected surfaces with different radial distance differences in space, the butt-joint combination of different numbers and different arrangement structures can be carried out by adopting a plurality of non-concentric connecting pipe joints according to actual conditions, the hard pipe connecting device can adapt to the smooth connection of to-be-connected surfaces with different radial distance differences in space, the application range is wide, and more application scenes are adapted.
Specifically, one non-concentric connecting pipe joint is equivalent to a vector which can rotate randomly and is e in size, the two non-concentric connecting pipe joints are overlapped to realize vector synthesis, after the two non-concentric connecting pipe joints are in butt joint connection, the final track coverage range of the first flange plates at the two ends of the assembly is a full circle with the radius of 2e, the maximum adjustment range can reach twice the height difference of the relative positions of the circle centers of the first flange plates at the two ends of the assembly, the adjustment range is wider, the adjustment of the wider connection range of the hard pipe connecting device can be realized under the condition that the liquid flow is not influenced, connecting components such as elbows and the like for flow channel steering are reduced, and the liquid flow is smoother.
As a preferable scheme of the invention, the pipe joint comprises at least one universal connecting pipe joint, wherein the universal connecting pipe joint comprises a pipe joint main body and second flange plates arranged at two ends of the pipe joint main body, the planes of the end surfaces of the two second flange plates can form an included angle M, the M is less than 90 degrees, and the non-concentric connecting pipe joint is in butt joint communication with the universal connecting pipe joint or is in pipeline communication with the universal connecting pipe joint. Adopt universal coupling pipe coupling, rotate universal coupling pipe coupling along one end second ring flange terminal surface, can realize that the orientation of other end second ring flange in the space changes, make this hard tube connecting device can realize having the smooth connection of the face of treating that the position orientation is poor in the space, can be according to actual conditions, adopt a plurality of non-concentric coupling pipe couplings and universal coupling pipe coupling to carry out different quantity, the butt joint combination of different arrangement structure, make this hard tube connecting device can adapt to the space simultaneously and have different orientations, the smooth connection of the face of treating that different radial distance is poor, accommodation broad, it is more to adapt to the application scene.
In a preferred embodiment of the present invention, an end surface of one of the second flanges of the universal joint is perpendicular to an axis of the joint body. The relative coupling main part slope of a second ring flange of universal connection coupling sets up, the relative coupling main part of another second ring flange sets up perpendicularly, when the second ring flange butt joint that two universal connection couplings set up through the slope, not only can realize the change of both ends face in the space orientation through the adjacent universal connection coupling of relative rotation, and can rotate to making both ends face parallel to each other, make this hard tube connecting device not only be adapted to and connect smoothly of face to having positional deviation, also can adapt to and connect smoothly of face to having positional deviation to treating of connecting.
As a preferable aspect of the present invention, a rotary seal is provided between the first flange and the pipe body, and/or a rotary seal is provided between the second flange and the pipe joint main body. The setting of rotary seal spare makes first ring flange body relatively rotate, and the second ring flange body can rotate relatively the tube coupling main part, makes first ring flange and second ring flange can realize and treat to connect the position adaptation that the face carries out the hole of being connected, further conveniently treats the smooth connection of connecting the face.
As a preferred scheme of the present invention, the rotary sealing member includes a bushing and a plurality of steel balls, the steel balls are disposed at the rear side of the force-bearing end surface of the bushing, an installation groove adapted to the steel balls is disposed on the pipe body and/or the pipe joint main body, the bushing includes a bending section, a notch adapted to the bending section is disposed on the pipe body and/or the pipe joint main body, and the bending section extends into the notch. The steel ball is used for assisting relative rotation between the flange plate and the pipe body, the compensation core is used for preventing external environment impurities from influencing smooth rotation of the steel ball, meanwhile, the force bearing end face of the compensation core is a butt joint face of the flange plate, and after the flange plate is stressed, force is transmitted to the pipe body through the compensation core, so that the sealing parts of the two flange plates in butt joint connection are kept stable, the sealing effect is good, and the vibration reduction effect is achieved.
As a preferred scheme of the invention, the bushing is detachably connected with the pipe body through a screw, and a plurality of steel balls are arranged around the axis of the pipe body. The structure that mends core and body and pass through the components of a whole that can function independently is connected, makes mend the core installation back, and the ring flange can embolia from the body terminal surface, the installation of the ring flange of being convenient for.
As a preferable scheme of the present invention, the first flange and/or the second flange is/are provided with a mounting hole for mounting the steel ball, the mounting hole is communicated with the mounting groove, and a limiting member is provided in the mounting hole. The steel ball passes from the mounting hole and installs to the mounting groove in, passes through the locating part shutoff with the mounting hole after the steel ball assembly is accomplished, and the steel ball receives the injecing of mounting groove position, makes the relative position of ring flange and body along the axis direction fixed.
As a preferable aspect of the present invention, the pipe body, the pipe joint main body, the first flange plate, and the second flange plate are respectively provided with at least one tool hole.
As a preferable aspect of the present invention, seal grooves are respectively disposed on an end surface of the first flange and an end surface of the second flange, and the seal grooves are used for embedding and disposing seal rings.
In a preferred embodiment of the present invention, the hard pipe connection device further comprises at least one angle pipe section and/or at least one straight pipe section. The angle through pipe joint is used for realizing 90-degree steering of liquid in the hard pipe connecting device, conveniently enables the hard pipe connecting device and treats that actual position between the connecting part suits, and the straight pipe joint is used for realizing the total length adjustment of the hard pipe connecting device, reduces the pipe joint quantity of the hard pipe connecting device, and the angle through pipe joint or the straight pipe joint can be arranged between the non-concentric connecting pipe joint and the universal connecting pipe joint, so that the non-concentric connecting pipe joint and the universal connecting pipe joint are communicated with the pipeline through the angle through pipe joint or the straight pipe joint.
As a preferable aspect of the present invention, the straight pipe joint includes a straight pipe and third flange plates provided at both ends of the straight pipe, and the rotary seal is provided between the third flange plates and the straight pipe. So that the straight pipe joint can be adapted to the position of the connecting hole of the part to be connected.
A manifold system comprises at least one fracturing tree and at least one shunt manifold sledge, wherein each fracturing tree is communicated with the shunt manifold sleds through at least one hard pipe connecting device, and the shunt manifold sleds are communicated with each other through the hard pipe connecting devices.
According to the manifold system, the manifold pry and the wellhead fracturing tree are connected through the hard pipe connecting device, the adjacent manifold prys are connected, the fracturing tree and the manifold pry and the two adjacent manifold prys can be conveniently, quickly, stably and reliably connected through a small number of pipe joints, meanwhile, the stable connection between the fracturing tree and the manifold pry and between the manifold prys is not affected by the deviation of the placing position, and the adaptability of the manifold system to the environment is further improved.
A manifold system comprises at least one fracturing device and at least one high-low pressure manifold pry, wherein the fracturing device is communicated with the high-low pressure manifold pry through at least one hard pipe connecting device.
According to the manifold system, the fracturing equipment and the high-low pressure manifold pry are connected through the hard pipe connecting device, so that the fracturing equipment and the high-low pressure manifold pry can be conveniently, quickly, stably and reliably connected through a small number of pipe joints, meanwhile, the stable connection between the fracturing equipment and the high-low pressure manifold pry is not affected by the deviation of the placing position, and the adaptability of the manifold system to the environment is improved.
A manifold system comprises a fracturing tree, a flow distribution manifold pry, fracturing equipment and a high-low pressure manifold pry, wherein the fracturing tree is connected to the flow distribution manifold pry through the hard pipe connecting device; the adjacent shunting manifold prys are communicated through the hard pipe connecting device; the fracturing equipment is connected to the high-low pressure manifold pry through the hard pipe connecting device as above, and the flow distribution manifold pry is communicated with the high-low pressure manifold pry through the hard pipe connecting device as above.
The manifold system is formed by combining a plurality of fracturing trees, the shunt manifold pry, the fracturing equipment and the high-low pressure manifold pry, can be directly applied to the fracturing manifold system for the exploitation of petroleum, natural gas and other underground resources, is convenient to connect all equipment, is easy to adjust, and can be easily adapted to the complex terrain environment of a fracturing site.
In summary, due to the adoption of the technical scheme, the hard tube connecting device has the beneficial effects that:
1. the direction angle of the end face of the universal connecting pipe joint can be adjusted by rotating the universal connecting pipe joint along the split-joint plane, the direction angle of the end face of the first flange plate at the other end of the pipe body can be adjusted by rotating one end of the non-concentric connecting pipe joint along the end face of the first flange plate, and the direction adjustment of the connecting faces at the two ends of the hard pipe connecting device can be realized by respectively adjusting the two pipe joints;
2. the two pipe joints are matched, so that the adjustable range of the connecting surfaces at the two ends of the hard pipe connecting device is wider, and the hard pipe connecting device can be conveniently, quickly and effectively connected with a part to be connected;
3. the pipe joints are simple in connection structure, and the distance and the direction between the pipe joints and the parts to be connected can be adjusted easily by adjusting the number and the connection arrangement structure of the pipe joints.
Drawings
FIG. 1 is a schematic view of the structure of a non-concentric coupling pipe joint described in example 1.
Fig. 2 is a schematic structural view of the universal joint pipe joint described in embodiment 1.
FIG. 3 is a schematic structural diagram of a hard pipe connection device combining two non-concentric connecting pipe sections in embodiment 1.
Fig. 4 is a schematic structural diagram of a hard pipe connection device combined by two universal joint pipes in embodiment 1.
FIG. 5 is a schematic structural diagram of a hard pipe connection device combining a universal joint and a non-concentric joint in embodiment 1.
FIG. 6 is a schematic sectional view A-A of the non-concentric coupling tube segment of example 2 in FIG. 1.
FIG. 7 is a schematic sectional view of the universal joint coupling of embodiment 3 taken along line B-B in FIG. 2.
FIG. 8 is a schematic sectional view of the hard pipe connection device of the two universal joint combinations of embodiment 3, which is C-C in FIG. 4.
Fig. 9 is a partial enlarged view at D in fig. 8.
FIG. 10 is a schematic structural view of a hard pipe connection device according to example 4.
Fig. 11 is a first application scenario of the hard pipe connection device of the present invention.
Fig. 12 shows a second application scenario of the hard tube connection device of the present invention.
Fig. 13 shows a third application scenario of the hard tube connection device of the present invention.
Fig. 14 shows a fourth application scenario of the hard pipe connection device of the present invention.
Reference numerals:
1-non-concentric connecting pipe joint, 11-pipe body, 12-first flange plate, 2-universal connecting pipe joint, 21-pipe joint main body, 22-second flange plate, 3-rotary sealing element, 31-complementary core, 311-bending section, 32-steel ball, 4-mounting groove, 5-notch, 6-mounting hole, 7-limiting piece, 8-tool hole, 9-sealing groove, 10-sealing ring, 20-angle through pipe joint, 30-straight pipe joint, 301-straight pipe, 302-third flange plate, 40-hard pipe connecting device, 50-fracturing tree, 60-shunt pipe skid, 70-fracturing device and 80-high-low pressure pipe joint skid.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1 to 5, a hard pipe connection device comprises at least one non-concentric connection pipe joint 1, wherein the non-concentric connection pipe joint 1 comprises a pipe body 11 and first flanges 12 arranged at two ends of the pipe body 11, the two first flanges 12 are parallel to each other, and the axes of the two first flanges 12 have a distance difference h, wherein h is greater than 0.
In the hard pipe connection device of the embodiment, as shown in fig. 1, the end surface circle centers of the first flange plates 12 at the two ends of the non-concentric connection pipe joint 1 are not on the same straight line, there is a height difference h of a relative position, one non-concentric connection pipe joint 1 is equivalent to a vector which can rotate at will and has a size of e, when the non-concentric connection pipe joint 1 rotates along the end surface axis of the first flange plate 12 at one side, the track coverage area of the first flange plate 12 at the other side is a full circle with a radius of e, so that the position adjustment of the first flange plate 12 at the other side can be realized, the non-concentric connection pipe joint 1 can realize the position adjustment of the first flange plates 12 at the two ends in the track coverage area, and the quick and stable connection of the to-be-connected surfaces which are parallel to each other but have a spatial height difference can be realized.
Specifically, as shown in fig. 3, in the present embodiment, two non-concentric connecting pipe joints 1 are connected in a butt joint manner, the two non-concentric connecting pipe joints 1 have the same shape and structure, the first flange plates 12 at the two ends of the non-concentric connecting pipe joints 1 are parallel to each other, a sealing ring 10 made of a metal material is embedded in the butt joint surface of the two non-concentric connecting pipe joints 1 through a sealing groove 9 for sealing, the two non-concentric connecting pipe joints 1 can rotate along the butt joint surface to adjust the end surface positions of the first flange plates 12 at the two ends, and are stably connected through conventional fasteners such as bolts and nuts, and the two non-concentric connecting pipe joints 1 are stacked to obtain a full circle track coverage range with a radius 2e, that is, a single non-concentric connecting pipe joint 1 can at least achieve effective sealing connection of two to-be connected surfaces within a range with a height difference 2h, and two non-concentric connecting pipe joints 2 having the same specification and size are stacked, the effective sealing connection of two sides of the space with the height difference of 4h can be realized at least, and the application range of the hard pipe connecting device to the space height difference of the surface to be connected is expanded.
Specifically, according to actual conditions, the non-concentric connecting pipe joints 1 with different end face circle center relative position height differences are adopted for butt joint, the adjusting range is changed, the spatial connectable range of the hard pipe connecting device is further increased, and redundant switching pipelines between the to-be-connected surfaces with end face horizontal direction or vertical direction position differences are simplified.
Specifically, the number of the non-concentric connecting pipe joints 1 can be adjusted according to actual conditions, so that the change of the connectable range of the end face of the hard pipe connecting device can be realized, the change of the length of the hard pipe connecting device can be realized, stable connection between the parts to be connected can be realized through a small number of pipe joints, the pipe diameter of the hard pipe connecting device can be kept in a large flow state by the flange plate connection mode, and the adjustment of a wide range of the hard pipe connecting device can be realized under the condition that liquid flow is not influenced.
Preferably, the hard pipe connecting device of this embodiment further includes at least one universal connecting pipe joint 2, the universal connecting pipe joint 2 includes a pipe joint main body 21 and second flanges 22 disposed at two ends of the pipe joint main body 21, and a plane where end faces of the second flanges 21 are located can form an included angle M, where M is less than 90 °.
Specifically, as shown in fig. 2, an end face of one of the second flanges 22 of the universal joint 2 is perpendicular to an axis of the joint body 21, and an end face of the other second flange 22 is inclined with an included angle smaller than 90 ° with respect to the joint body 21, so that when the universal joint rotates along the end face of one of the second flanges 22, a spatial orientation of the other second flange 22 changes, and the hard pipe connection device is adapted to smooth connection of a to-be-connected surface with a poor orientation.
Specifically, as shown in fig. 4, a hard tube connecting device of this embodiment adopts two universal joint pipe joints 2 to connect in a butt joint manner, two universal joint pipe joints 2 connect in a butt joint manner through the second flange plate 22 that sets up the slope relative to the pipe joint main part 21, it seals to set up the sealing ring 10 of metal material through the embedding of seal groove 9 between the butt joint face of two universal joint pipe joints 2, make through two universal joint pipe joints 2 of relative rotation, not only can change the orientation of both ends face in the space, can also rotate to the state that makes both ends face be parallel to each other through following the butt joint face, make this hard tube connecting device not only be adapted to the smooth connection to the face of connecting of treating that has positional deviation, also be adapted to the smooth connection to the face of connecting of treating that does not have positional deviation.
Specifically, as shown in fig. 5, a hard pipe connection device of this embodiment connects a non-concentric connection pipe joint 1 and a universal connection pipe joint 2 in a butt joint manner, so that the hard pipe connection device can be simultaneously adapted to smooth connection of surfaces to be connected, which have different orientations and different radial distance differences in space.
Specifically, the number of the non-concentric connecting pipe joints 1 and the universal connecting pipe joints 2 and the arrangement structure of the butt joint combination can be adjusted according to actual conditions, the axial distance difference of the first flange plates 12 at the two ends of the non-concentric connecting pipe joints 1 is adjusted, the included angle value of the two end faces of the universal connecting pipe joints 2 is adjusted, the application range of the hard pipe connecting device is further expanded, and more application scenes are adapted.
Specifically, the first flange 12 and the second flange 22 may be flanges having through holes or flanges having blind holes, and the first flange 12 and the second flange 22 can be connected and fixed by bolts and nuts.
Example 2
As shown in fig. 6, a hard pipe connecting device of the present embodiment has the same structure as that of embodiment 1, except that: the rotary sealing element 3 is arranged between the first flange plate 12 and the pipe body 11, the rotary sealing element 3 comprises a bushing 31 and a plurality of steel balls 32, the steel balls 32 are arranged on the rear side of the bearing end face of the bushing 31, and the steel balls 32 are uniformly arranged around the pipe body 11.
It is specific, mend core 31 and be the ring type, the cover is established at 11 tip of body, set up notch 5 at 11 outer walls of body, mend core 31 and set up section 311 of bending and stretch into in notch 5, mend core 31 and body 11 through the screw connection along the radial setting of body 11, the section 311 of bending of mending core 31 is close to steel ball 32 and sets up, a plurality of steel balls 32 surround body 11 and evenly arrange the setting, make first ring flange 12 can wind the smooth rotation of self axis, change the position of connecting hole on the first ring flange 12, make first ring flange 12 can with treat to connect the face and carry out more smooth and easy being connected.
Preferably, the pipe body 11 is provided with a mounting groove 4 adapted to the steel ball 32, the first flange 12 is provided with a mounting hole 6 for mounting the steel ball 32, the mounting hole 6 is communicated with the mounting groove 4, and the mounting hole 6 is internally provided with a limiting part 7.
Specifically, mounting groove 4 is the ring channel that encircles body 11 and set up or the hemisphere groove with steel ball 32 appearance adaptation, and mounting groove 4 is formed by two parts lock, and the lock forms two parts of mounting groove 4 can be selective set up to ring channel or hemisphere groove.
Specifically, the limiting part 7 comprises a plug and a clamp spring which are embedded into the mounting hole 6.
Example 3
As shown in fig. 6 to 9, a hard pipe connecting device of the present embodiment has the same structure as that of embodiment 1, except that: and a rotary sealing element 3 is arranged between the second flange plate 22 and the pipe joint main body 21, the rotary sealing element 3 comprises a bushing 31 and a plurality of steel balls 32, the steel balls 32 are arranged at the rear side of the bearing end surface of the bushing 31, and the steel balls 32 are uniformly arranged around the pipe joint main body 21.
Preferably, the pipe joint main body 21 is provided with a mounting groove 4 adapted to the steel ball 32, the second flange 22 is provided with a mounting hole 6 for mounting the steel ball 32, the mounting hole 6 is communicated with the mounting groove 4, and the mounting hole 6 is internally provided with a limiting part 7.
Specifically, the mounting groove 4 is an annular groove arranged around the pipe fitting main body 21 or a hemispherical groove matched with the shape of the steel ball 32, the mounting groove 4 is formed by buckling two parts, and the two parts buckled to form the mounting groove 4 can be selectively arranged into the annular groove or the hemispherical groove.
Specifically, the limiting part 7 comprises a plug and a clamp spring which are embedded into the mounting hole 6.
Preferably, set up at least one tool hole 8 respectively on first ring flange 12, second ring flange 33, body 11 and the pipe fitting main part 21, the connection handling tool that tool hole 8 can the adaptation carries out the arm of force extension, realizes the swift rotation to first ring flange 12 and second ring flange 22, makes the connection hole on first ring flange 12 and the second ring flange 22 can align with the connection hole of waiting to be connected on the face.
Specifically, the second flange 22 is installed obliquely by a thickened step provided on the outer wall of the pipe joint body 21.
Example 4
As shown in fig. 10, the hard pipe connecting device of the present embodiment has the same structure as that of embodiment 3, except that: the connecting device further comprises at least one angle through pipe joint 20 and at least one straight pipe joint 30, wherein the angle through pipe joint 20 is preferably a flange-connected 90-degree angle through pipe joint 20, the straight pipe joint 30 is preferably a flange-connected straight pipe joint 30, the connectable range of the hard pipe connecting device is further increased, and the adaptation of the distance, the height and the orientation of the connecting surface between the hard pipe connecting device and a part to be connected is realized.
Specifically, the number of the universal connecting pipe joints 2 and the non-concentric connecting pipe joints 1, the arrangement structure along the trend of the hard pipe connecting device, and the arrangement position and the arrangement number of the straight pipe joints 30 or the angle through pipe joints 20 can be adjusted according to actual conditions, so that the further adjustment of the adjustable range of the hard pipe connecting device is realized.
Preferably, the straight pipe joint 30 includes a straight pipe 301 and third flange discs 302 disposed at two ends of the straight pipe 301, and the rotary seal 3 is disposed between the third flange discs 302 and the straight pipe 301.
Specifically, the hard pipe connection device of the embodiment can be suitable for the petroleum drilling industry in the situations related to complex fluid pipeline transmission, such as fracturing fluid transmission, flow splitting, flow converging, slurry transmission and the like, and can be particularly suitable for fast and stable connection between two to-be-connected surfaces with spatial end surface radial distance difference, axial distance difference and spatial orientation angle difference, and can reduce vibration of a manifold system and improve stability of complex fluid high-pressure transmission through matching between pipe joints.
Example 5
As shown in fig. 11-12, a manifold system includes at least one fracturing tree 50 and at least one flow manifold skid 60, each of the fracturing trees 50 is communicated with the flow manifold skid 60 through at least one hard pipe connection device 40 as described above, and adjacent flow manifold skids 60 are communicated through the hard pipe connection device 40.
A manifold system of this embodiment adopts hard tube connecting device 40 to connect reposition of redundant personnel manifold sled 60 and well head fracturing tree 50, makes between fracturing tree 50 and the reposition of redundant personnel manifold sled 60, can carry out convenient and fast, reliable and stable connection through the pipe coupling of less quantity between the adjacent reposition of redundant personnel manifold sled 60, simultaneously, makes the stable connection between fracturing tree 50 and the reposition of redundant personnel manifold sled 60 not receive the influence of locating place deviation, further improves the adaptability of manifold system and environment.
Example 6
As shown in fig. 13-14, a manifold system includes at least one fracturing device 70 and at least one high-low pressure manifold pry 80, the fracturing device 70 and the high-low pressure manifold pry 80 are communicated through at least one hard pipe connecting device 40 as described in the above embodiment, and the fracturing device 70 is a fracturing pump in this embodiment.
A manifold system of this embodiment, not only adopt hard tube connecting device 40 to connect fracturing tree 50 and reposition of redundant personnel manifold sled 60, connect adjacent reposition of redundant personnel manifold sled 60, connect fracturing equipment 70 and high-low pressure manifold sled 80 through hard tube connecting device 40 moreover, make and carry out convenient and fast, reliable and stable connection through less quantity's pipe coupling between fracturing equipment 70 and the high-low pressure manifold sled 80, and simultaneously, make the stable connection between fracturing equipment 70 and the high-low pressure manifold sled 80 not receive the influence of locating position deviation, improve the adaptability of manifold system and environment.
Specifically, as shown in fig. 14, the manifold skid 60 and the high and low pressure manifold skid 80 are also in communication via the hard pipe connection 40.
Specifically, the hard tube connection device 40 of the present embodiment can be adapted to a scenario related to complex fluid pipeline transportation, such as fracturing fluid transportation, diversion, confluence, slurry transportation, etc., in the oil drilling industry, and particularly can be adapted to fast and stable connection between two surfaces to be connected, which have a spatial azimuth deviation and a spatial distance difference, and can reduce vibration of the manifold system and improve stability of complex fluid high-pressure transportation by matching between connection components of the hard tube connection device 40.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (13)
1. The utility model provides a hard tube connecting device, its characterized in that includes at least one non-concentric coupling pipe section (1), non-concentric coupling pipe section (1) includes body (11) and sets up first ring flange (12) at body (11) both ends, two first ring flange (12) are parallel to each other, two the axis of first ring flange (12) has distance difference h, and h > 0.
2. A hard pipe connecting device according to claim 1, further comprising at least one universal connecting pipe joint (2), wherein the universal connecting pipe joint (2) comprises a pipe joint main body (21) and second flanges (22) arranged at two ends of the pipe joint main body (21), the planes of the end faces of the two second flanges (22) can form an included angle M, M is less than 90 °, and the non-concentric connecting pipe joint (1) and the universal connecting pipe joint (2) are in butt joint communication or pipeline communication.
3. A hard pipe connection according to claim 2, wherein the end face of one of the second flanges (22) of the universal joint (2) is perpendicular to the axis of the joint body (21).
4. A pipe coupling according to claim 3, wherein a rotary seal (3) is provided between the first flange (12) and the body (11) and/or a rotary seal (3) is provided between the second flange (22) and the joint body (21).
5. A hard tube connecting device according to claim 4, characterized in that the rotary sealing element (3) comprises a bushing (31) and a plurality of steel balls (32), the steel balls (32) are arranged at the rear side of the bearing end face of the bushing (31), the tube body (11) and/or the tube joint main body (21) are provided with mounting grooves (4) matched with the steel balls (32), the bushing (31) comprises bending sections (311), the tube body (11) and/or the tube joint main body (21) are provided with notches (5) matched with the bending sections (311), and the bending sections (311) extend into the notches (5).
6. A hard pipe connecting device according to claim 5, wherein the first flange (12) and/or the second flange (22) is provided with a mounting hole (6) for mounting the steel ball (32), the mounting hole (6) is communicated with the mounting groove (4), and a limiting member (7) is arranged in the mounting hole (6).
7. A hard pipe connection according to claim 3, wherein the tubular body (11), the joint body (21), the first flange (12) and the second flange (22) are each provided with at least one tool hole (8).
8. A hard pipe connecting device according to claim 2, wherein the end face of the first flange (12) and the end face of the second flange (22) are respectively provided with a sealing groove (9), and the sealing groove (9) is used for embedding and arranging the sealing ring (10).
9. A hard pipe connection according to claim 4, characterized in that the hard pipe connection (40) further comprises at least one angle pipe section (20) and/or at least one straight pipe section (30).
10. A hard pipe connection according to claim 9, wherein the straight pipe joint (30) comprises a straight pipe (301) and third flanges (302) arranged at both ends of the straight pipe (301), and the rotary seal (3) is arranged between the third flanges (302) and the straight pipe (301).
11. Manifold system, comprising at least one fracturing tree (50) and at least one manifold skid (60), each of said fracturing trees (50) being in communication with said manifold skid (60) by means of at least one hard pipe connection (40) according to any one of claims 1 to 10, adjacent manifold skids (60) being in communication by means of said hard pipe connection (40).
12. Manifold system, characterized in that it comprises at least one fracturing device (70) and at least one high-low pressure manifold skid (80), said fracturing device (70) and said high-low pressure manifold skid (80) being in communication by means of at least one hard pipe connection device (40) according to any of claims 1 to 10.
13. A manifold system comprising at least one manifold system according to claim 11 and at least one manifold system according to claim 12, wherein the high and low pressure manifold prys (80) communicate with the manifold pry (60) through at least one hard pipe connection (40) according to any one of claims 1-10.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111064542.1A CN113819321B (en) | 2021-09-10 | 2021-09-10 | Hard pipe connecting device and manifold system thereof |
| US17/929,094 US20230082967A1 (en) | 2021-09-10 | 2022-09-01 | Hard pipe connecting device and manifold system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111064542.1A CN113819321B (en) | 2021-09-10 | 2021-09-10 | Hard pipe connecting device and manifold system thereof |
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| CN113819321A true CN113819321A (en) | 2021-12-21 |
| CN113819321B CN113819321B (en) | 2023-08-15 |
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Cited By (1)
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| CN114952060A (en) * | 2022-06-15 | 2022-08-30 | 李天宏 | Large-diameter pipeline butt-joint double-side welding one-time lofting and mouth repairing construction process |
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| CN113819321B (en) | 2023-08-15 |
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