CN210370607U - Novel high-pressure manifold device - Google Patents
Novel high-pressure manifold device Download PDFInfo
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- CN210370607U CN210370607U CN201920925345.6U CN201920925345U CN210370607U CN 210370607 U CN210370607 U CN 210370607U CN 201920925345 U CN201920925345 U CN 201920925345U CN 210370607 U CN210370607 U CN 210370607U
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Abstract
The utility model relates to a novel high-pressure manifold device, it includes the central manifold of a font, the rear end of central manifold is provided with the discharge port, the front end of central manifold is provided with the series connection and inserts the mouth, the upside rear end of central manifold is connected with first inlet channel perpendicularly, the downside front end of central manifold sets up and is connected with second inlet channel perpendicularly. Because the central manifold is in a straight line shape, the reducing area and the friction loss of the central manifold are reduced, the sand setting of the high-pressure manifold is reduced, and the safety coefficient of fracturing construction is improved; moreover, included angles between the first liquid inlet channel and the central manifold and included angles between the second liquid inlet channel and the central manifold are right angles, so that the erosion abrasion of high-pressure fluid to the novel manifold device can be effectively reduced; and first inlet channel with second inlet channel dislocation set can reduce high-pressure fluid and be in the inside vortex state of central manifold reduces high-pressure fluid and right the vibration that the high-pressure manifold impact caused.
Description
Technical Field
The utility model relates to a test oil well completion engineering technical field, more specifically say, relate to a novel high-pressure manifold device.
Background
The principle of shale gas development hydraulic fracturing is that natural or induced fracture systems of a reservoir are utilized, fracturing fluid containing various additive components is injected into a stratum under high pressure to enlarge a reservoir fracture network, and fractures cannot be closed after the fracturing fluid returns by means of a propping agent, so that the reservoir fracture network system is improved, and the purpose of increasing production is achieved. In the exploration and development operation of unconventional oil and gas reservoirs such as shale gas, deep shale gas and the like, the reservoir is compact, the porosity and the permeability of the reservoir are ultralow, micro cracks develop, the abundance of organic matters is high, the thickness of the organic matters is large, the brittleness coefficient is high, shear cracks are easy to form, the gas is mainly adsorbed on the surface of the organic matters in an adsorption state, and a good yield-increasing effect is difficult to obtain due to the fact that a single crack is formed through conventional modification. Therefore, the horizontal well multi-section fracturing technology is widely applied to development and utilization of shale gas, so that the original shale gas well with low yield or no airflow obtains industrial value, the mining range of the shale gas in the transverse direction and the longitudinal direction is greatly expanded, and the technology is the most key technology for rapid development of the shale gas.
The first recoverable reserves of the Chinese shale gas reach 36.1 billion cubic meters, and exceed the proven reserves of the natural gas by 10 times of 3.0 billion cubic meters. The recoverable resource reserves of the shale gas in China estimated by the oil and gas center of the China soil resources department are about 31 trillion square. Shale gas reserves are so enormous that they are a significant resource that cannot be ignored.
The fracturing process embodies the following characteristics: (1) the construction pressure is high, and the highest construction pressure reaches 118-121 MPa; (2) the displacement is large, and the highest construction displacement can reach 19.0m 3/min; (3) the liquid amount is large, and the liquid amount of the single-well fracturing pressed into the formation reaches 67799.1m3 at most; (4) the horizontal well is fractured at most 33 sections at one time, and the fracturing manifold is mainly used for deep shale gas development such as shale gas-containing capacity test, acid fracturing construction, fracturing operation and the like. However, in the construction process, the problems of large flow, high pressure, multiple construction levels, long construction time, high risk, large amount of sand grains in the construction process and the like exist, and therefore the manifold equipment is required to have high reliability.
The existing high-pressure manifold device mainly comprises a high-pressure pipe joint and a high-pressure element, a double-loop skid-mounted structure is mainly adopted in the structural form, the high-pressure pipe joint mainly comprises 2 4' FIG.2002 central manifolds, a communication manifold between the main manifolds is additionally arranged at the end far away from a discharge port, 10 discharge manifold inlets and 4Y-shaped tee discharge ports are formed in the high-pressure manifold device, and the high-pressure manifold device can be used for connecting 8-10 fracturing trucks. It has the following problems: (1) according to practical use experience of the high-pressure manifold, the maximum recommended flow rate is 12.2m/s, and the maximum flow capacity of the high-pressure main manifold in the connection mode is 9.08m3Therefore, the construction displacement requirement of 12-20 m3/min cannot be met in the use technical range; (2) the overall structure is a statically indeterminate structure, stress concentration is easily caused, meanwhile, the number of connecting parts is increased, and the reliability is reduced; (3) the communication manifolds among the main manifolds are added at the end far away from the discharge ports, the interior of the communication manifolds is basically in a vortex state, the series flow capacity is limited, only the total flow distribution among the two main manifolds can be realized, the flow sharing of each discharge port cannot be realized, and the flow rate of partial discharge port manifolds exceeds the maximum recommended flow rate; (4) the discharge port of the Y-shaped tee joint cannot play a role in flow equalization, the speed direction of fluid inside the Y-shaped tee joint forms an acute angle with the wall surface to cause acute angle erosion, the inner wall of the Y-shaped tee joint is easier to erode and damage by the fluid, and the fracture position is near the bypass inlet.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in, to the above-mentioned low, the reliability low grade defect of velocity of flow of prior art, provide a novel high pressure manifold device.
The utility model provides a technical scheme that its technical problem adopted is:
novel high-pressure manifold device in, central manifold including the line, the rear end of central manifold is provided with the discharge port, the front end of central manifold is provided with the series connection and inserts the mouth, the upside rear end of central manifold is connected with first inlet channel perpendicularly, the downside front end of central manifold sets up and is connected with second inlet channel perpendicularly.
In the novel high-pressure manifold device of the present invention, the central manifold comprises a first double-flange high-pressure tee, a high-pressure body and a second double-flange high-pressure tee which are connected in sequence, the first double-flange high-pressure tee is connected with the discharge port, and the second double-flange high-pressure tee is connected with the serial connection port; the high-pressure body includes that two at least cross bodies and at least one set up two double flange high pressure nipple joint between the cross body, and every the upside rear end of cross body is connected with first inlet channel perpendicularly, every the downside front end of cross body sets up and is connected with second inlet channel perpendicularly.
Novel high-pressure manifold device in, the cross-connection body with the junction position of first double-flange high-pressure tee and the cross-connection body with the junction position of second double-flange high-pressure tee and the cross-connection body with the junction position of double-flange high-pressure nipple joint all is provided with first metal seal ring.
Novel high pressure manifold device in, the discharge port includes first fracturing six-way body, the female union of a plurality of flange high pressure discharge, high-pressure end cap and second metal seal ring, and high-pressure end cap with the main entrance of first fracturing six-way body is connected, and is a plurality of the female union of flange high pressure discharge respectively with the side direction discharge port of first fracturing six-way body is connected, and every the side direction discharge port with the contained angle of main entrance is the acute angle, second metal seal ring sets up the side direction discharge port with the junction of the female union of flange high pressure discharge, it is a plurality of the side direction discharge port evenly sets up on the first fracturing six-way body.
Novel high-pressure manifold device in, the third link of first double-flange high-pressure tee is connected with pressure detector, pressure detector include with the first hammering oil that the third link of first double-flange high-pressure tee is connected perpendicularly is nonyl and with the pressure sensor that first hammering oil is nonyl and is connected.
Novel high-pressure manifold device in, the third link of second flange high-pressure tee bend is connected with pressure protector, pressure protector include with the perpendicular second hammering oil that connects of third link of second double flange high-pressure tee bend is nonyl and with the relief valve that second hammering oil is nonyl and is connected.
In the novel high-pressure manifold device of the present invention, the first liquid inlet channel comprises a first baffle type check valve, a first plug valve connected to the first baffle type check valve, a first flange union connected to the first plug valve, and a first liquid inlet pipeline extending into the rear end of the upper side of the four-way body, and the first flange union is mounted on the first liquid inlet pipeline through a second stud; second inlet channel include the second baffle type single current valve, with the second plug valve that second baffle type single current valve is connected, with the second flange mother oil union that the second plug valve is connected and stretch into the second inlet line of cross body downside front end, and the second flange mother oil union is installed through the second stud on the second inlet line.
Novel high-pressure manifold device in, first flange female oil nonyl with between the cross body and second flange female oil nonyl with all be provided with the third metal seal ring between the cross body.
In the novel high-pressure manifold device of the utility model, a first union rubber sealing packing is arranged between the first plug valve and the first flange female union; and second union rubber sealing packing is arranged between the second plug valve and the second flange female union.
In the novel high-pressure manifold device, the series-connection inlet comprises a second fracturing six-way body connected with the second double-flange high-pressure tee and a series-connection female union connected with the second fracturing six-way body.
Implement the utility model discloses a novel high-pressure manifold device has following beneficial effect:
1. the central manifold of the novel high-pressure manifold device is in a straight line shape, the reducing area and the friction loss of the central manifold are reduced, the sand setting of the high-pressure manifold is reduced, and the fracturing construction safety factor is improved.
2. The rear end of the upper side of the central manifold is vertically connected with a first liquid inlet channel, the front end of the lower side of the central manifold is vertically connected with a second liquid inlet channel, and because the included angles between the first liquid inlet channel and the central manifold and the included angles between the second liquid inlet channel and the central manifold are right angles, the novel manifold device can effectively reduce the erosion abrasion of high-pressure fluid to the novel manifold device; and first inlet channel with second inlet channel dislocation set can reduce high-pressure fluid and be in the inside vortex state of central manifold reduces high-pressure fluid and right the vibration that the high-pressure manifold impact caused.
3. The novel high-pressure manifold device comprises a pressure protector, a safety valve of the novel high-pressure manifold device is vertically connected with a central manifold, dirt can be reduced from entering the safety valve, and after pressure is released through overpressure, the safety valve can still be closed and the probability of water leakage is reduced.
4. The novel high-pressure manifold device comprises a pressure detector, and the pressure of the novel high-pressure manifold device can be monitored in real time.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic structural diagram of a novel high-pressure manifold device according to the present invention;
wherein the reference numerals in fig. 1 are:
1. a first double-flange high-pressure tee; 2. a pressure sensor; 3. a second double-flange high-pressure tee; 4. a four-way body; 5. a double-flange high-pressure short section; 6. a first liquid inlet channel; 7. a second liquid inlet channel; 8. a first metal seal ring; 9. a first frac six-way body; 10. discharging the female union from the flange at high pressure; 11. a high-pressure plug; 12. a second metal seal ring; 13. a first hammer oleone; 14. a second hammer oleone; 15. a safety valve; 16. a first flapper check valve; 17. a first plug valve; 18. a first flange union; 19. a first liquid inlet pipeline; 20. a second baffle type check valve; 21. a second plug valve; 22. a second flange union; 23. a second liquid inlet pipeline; 24. a third metal seal ring; 25. a first union rubber seal packing; 26. a second union rubber seal packing; 27. a second fractured six-way body; 28. in series with a mother oil union.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, novel high-pressure manifold device, central manifold including the line, the rear end of central manifold is provided with the discharge port, the front end of central manifold is provided with the series connection and inserts the mouth, the upside rear end of central manifold is connected with first inlet channel 6 perpendicularly, the downside front end of central manifold sets up and is connected with second inlet channel 7 perpendicularly.
Because the central manifold is in a straight line shape, compared with an annular high-pressure manifold device, the variable-diameter area and the friction loss of the central manifold are obviously reduced, the possibility of sand setting of the high-pressure manifold is reduced, and the safety coefficient of fracturing construction is greatly improved. Furthermore, the utility model discloses in, the central manifold adopts big latus rectum, keeps under the certain condition of pressure, the inside velocity of flow of central manifold is not more than 12.2m/s, and the biggest circulation ability can reach 26m3/min。
In addition, as the first liquid inlet channel 6 and the second liquid inlet channel 7 are both vertically connected with the central manifold, the erosion and the abrasion of high-pressure fluid to the central manifold can be effectively reduced; moreover, first inlet channel 6 is connected perpendicularly the upside rear end of center manifold, second inlet channel 7 is connected perpendicularly the downside front end of center manifold makes first inlet channel 6 with 7 dislocation sets of second inlet channel can obviously reduce high-pressure fluid and be in the inside vortex state of center manifold to it is right to reduce high-pressure fluid the vibration that the impact of center manifold caused.
The central manifold comprises a first double-flange high-pressure tee 1, a high-pressure body and a second double-flange high-pressure tee 3 which are sequentially connected, wherein the first double-flange high-pressure tee 1 is connected with the discharge port, and the second double-flange high-pressure tee 3 is connected with the serial connection inlet; the high-pressure body includes that two at least cross bodies 4 and at least one set up two double flange high pressure nipple joint 5 between the cross body 4, and every the upside rear end of cross body 4 is connected with first inlet channel 6 perpendicularly, every the downside front end of cross body 4 sets up and is connected with second inlet channel 7 perpendicularly.
The utility model discloses in, the quantity of cross body 4 is five, the quantity of double flange high pressure nipple joint 5 is four, and adjacent two all be connected with one between the cross body 4 double flange high pressure nipple joint 5. And, the distance between two adjacent cross bodies 4 is equal, and it has reduced fracturing plunger pump high pressure discharge manifold's connection quantity and complexity, has reduced fracturing plunger pump high pressure discharge manifold's vibration.
The four-way body 4 with the connection position of first double-flange high-pressure tee 1, and the four-way body 4 with the connection position of second double-flange high-pressure tee 3, and the four-way body 4 with the connection position of double-flange high-pressure nipple 5 all are provided with first metal sealing rings 8, thereby pass through central manifold has higher leakproofness, in order to ensure the fail safe nature of central manifold when 140Mpa operating pressure.
During specific connection, the four-way body 4 is connected with the double-flange high-pressure short section 5 through a first double-head bolt.
The discharge port includes first fracturing six-way body 9, a plurality of flange high pressure discharge female union 10, high-pressure end cap 11 and second metal seal ring 12, and high-pressure end cap 11 with the main entrance of first fracturing six-way body 9 is connected, and is a plurality of flange high pressure discharge female union 10 respectively with the side direction discharge port of first fracturing six-way body 9 is connected, and every the side direction discharge port with the contained angle of main entrance is the acute angle, second metal seal ring 12 sets up the side direction discharge port with the connection position of flange high pressure discharge female union 10, and is a plurality of the side direction discharge port evenly sets up on the first fracturing six-way body 9.
Because it is a plurality of the side direction discharge port evenly sets up, just the side direction discharge port with the contained angle between the main entrance is the acute angle, has improved every discharge port flow distribution degree of consistency, has reduced the impact vibration of high-pressure fluid to multi-pipeline fracturing well head.
The third link of first double-flange high-pressure tee 1 is connected with pressure detector, pressure detector include with the perpendicular first hammering union 13 of connecting of third link of first double-flange high-pressure tee 1 and with pressure sensor 2 that first hammering union 13 is connected, thereby through pressure sensor 29 can with the pressure of novel high-pressure manifold device transmits to the computer in real time.
A third connecting end of the second double-flange high-pressure tee 3 is connected with a pressure protector, the pressure protector comprises a second hammering union 14 vertically connected with the third connecting end of the second double-flange high-pressure tee 3 and a safety valve 15 connected with the second hammering union 14, and therefore the requirements for protecting a fracturing plunger pump and the like are met through the safety valve 15; moreover, the safety valve 15 is vertically connected to the second double-flange high-pressure tee 3, which can prevent dirt from entering the novel high-pressure manifold device, and the safety valve 15 can be closed after overpressure is released, so that the probability of water leakage is reduced.
The first liquid inlet channel 6 comprises a first baffle type check valve 16, a first plug valve 17 connected with the first baffle type check valve 16, a first flange female union 18 connected with the first plug valve 17 and a first liquid inlet pipeline 19 extending into the rear end of the upper side of the four-way body 4, and the first flange female union 18 is installed on the first liquid inlet pipeline 19 through a second stud; second inlet channel 7 include second baffle type single current valve 20, with second plug valve 21 that second baffle type single current valve 20 is connected, with second flange mother oil union 22 that second plug valve 21 is connected and stretch into the second inlet line 23 of 4 downside front ends of four-way body, and second flange mother oil union 22 is installed through the second stud on the second inlet line 23.
The first flange female union 18 with between the four-way body 4, and the second flange female union 22 with all be provided with third metal seal ring 24 between the four-way body 4, thereby can improve first inlet channel 6 with the leakproofness of second inlet channel 7.
A first union rubber sealing packing 25 is arranged between the first plug valve 17 and the first flange female oil union 18; second union rubber sealing packing 26 is arranged between the second plug valve 21 and the second flange female oil union 22, so that the sealing performance of the first liquid inlet channel 6 and the second liquid inlet channel 7 can be further improved.
The serial connection port comprises a second fracturing six-way body 27 connected with the second double-flange high-pressure tee 3 and a serial mother union 28 connected with the second fracturing six-way body 27.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (10)
1. The utility model provides a novel high pressure manifold device which characterized in that: including the central manifold of a straight line, the rear end of central manifold is provided with the discharge port, the front end of central manifold is provided with the series connection and inserts the mouth, the upside rear end of central manifold is connected with first inlet channel perpendicularly, the downside front end of central manifold sets up and is connected with second inlet channel perpendicularly.
2. The new high pressure manifold apparatus of claim 1, wherein: the central manifold comprises a first double-flange high-pressure tee, a high-pressure body and a second double-flange high-pressure tee which are sequentially connected, the first double-flange high-pressure tee is connected with the discharge port, and the second double-flange high-pressure tee is connected with the serial connection inlet; the high-pressure body includes that two at least cross bodies and at least one set up two double flange high pressure nipple joint between the cross body, and every the upside rear end of cross body is connected with first inlet channel perpendicularly, every the downside front end of cross body sets up and is connected with second inlet channel perpendicularly.
3. The new high pressure manifold apparatus of claim 2, wherein: and the connection position of the four-way body and the first double-flange high-pressure tee joint, the connection position of the four-way body and the second double-flange high-pressure tee joint, and the connection position of the four-way body and the double-flange high-pressure short joint are respectively provided with a first metal sealing ring.
4. The new high pressure manifold apparatus of claim 3, wherein: the discharge port includes first fracturing six-way body, a plurality of flange high pressure discharge female union, high pressure end cap and second metal seal ring, and the high pressure end cap with the main entrance of first fracturing six-way body is connected, and is a plurality of flange high pressure discharge female union respectively with the side direction discharge port of first fracturing six-way body is connected, and every the side direction discharge port with the contained angle of main entrance is the acute angle, second metal seal ring sets up the side direction discharge port with the position of being connected of flange high pressure discharge female union, and is a plurality of the side direction discharge port evenly sets up on the first fracturing six-way body.
5. The new high pressure manifold apparatus of claim 3, wherein: and a third connecting end of the first double-flange high-pressure tee is connected with a pressure detector, and the pressure detector comprises a first hammering union and a pressure sensor, wherein the first hammering union is vertically connected with the third connecting end of the first double-flange high-pressure tee, and the pressure sensor is connected with the first hammering union.
6. The new high pressure manifold apparatus of claim 3, wherein: and a third connecting end of the second flange high-pressure tee is connected with a pressure protector, and the pressure protector comprises a second hammering union and a safety valve, wherein the second hammering union is vertically connected with the third connecting end of the second double-flange high-pressure tee, and the safety valve is connected with the second hammering union.
7. The new high pressure manifold apparatus of claim 3, wherein: the first liquid inlet channel comprises a first baffle type check valve, a first plug valve connected with the first baffle type check valve, a first flange female union connected with the first plug valve and a first liquid inlet pipeline extending into the rear end of the upper side of the four-way body, and the first flange female union is installed on the first liquid inlet pipeline through a second stud; second inlet channel include the second baffle type single current valve, with the second plug valve that second baffle type single current valve is connected, with the second flange mother oil union that the second plug valve is connected and stretch into the second inlet line of cross body downside front end, and the second flange mother oil union is installed through the second stud on the second inlet line.
8. The new high pressure manifold apparatus of claim 7, wherein: and third metal sealing rings are arranged between the first flange female union and the four-way body and between the second flange female union and the four-way body.
9. The new high pressure manifold apparatus of claim 7, wherein: a first union rubber sealing packing is arranged between the first plug valve and the first flange female union; and second union rubber sealing packing is arranged between the second plug valve and the second flange female union.
10. The new high pressure manifold apparatus of claim 3, wherein: the serial connection inlet comprises a second fracturing six-way body connected with the second double-flange high-pressure tee and a serial connection female union connected with the second fracturing six-way body.
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| CN201920925345.6U CN210370607U (en) | 2019-06-19 | 2019-06-19 | Novel high-pressure manifold device |
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| CN201920925345.6U CN210370607U (en) | 2019-06-19 | 2019-06-19 | Novel high-pressure manifold device |
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| CN210370607U true CN210370607U (en) | 2020-04-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374575A (en) * | 2019-06-19 | 2019-10-25 | 中石化石油工程技术服务有限公司 | A kind of novel high-pressure pipe joints device |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374575A (en) * | 2019-06-19 | 2019-10-25 | 中石化石油工程技术服务有限公司 | A kind of novel high-pressure pipe joints device |
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Effective date of registration: 20210603 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: SINOPEC Group Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC JIANGHAN OILFIELD SERVICE Corp. Patentee after: DOWNHOLE TESTING COMPANY OF SINOPEC JIANGHAN OILFIELD SERVICE Co.,Ltd. Address before: 100101 Chaoyang District, Beijing Hui Xin Street 6, Twelfth level. Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC JIANGHAN OILFIELD SERVICE Corp. Patentee before: DOWNHOLE TESTING COMPANY OF SINOPEC JIANGHAN OILFIELD SERVICE Co.,Ltd. |
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