CN212898350U - Quick-mounting casing head for petroleum production well head - Google Patents
Quick-mounting casing head for petroleum production well head Download PDFInfo
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- CN212898350U CN212898350U CN202021127455.7U CN202021127455U CN212898350U CN 212898350 U CN212898350 U CN 212898350U CN 202021127455 U CN202021127455 U CN 202021127455U CN 212898350 U CN212898350 U CN 212898350U
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- casing head
- head body
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Abstract
The utility model relates to a petroleum equipment field, concretely relates to a ready-package casing head for oil recovery well head. Including the casing head body, casing head body upper end is fixed with the hanger, the flange formula parallel gate valve rather than inside intercommunication is all installed to casing head body both sides, casing head body lower extreme is fixed with the lower clutch rather than the intercommunication, the internal thread with outer tube connection is seted up to the lower clutch inner edge, threaded connection has rather than endocentric swivel nut on the lower clutch, the cover is equipped with rather than the lower ring of heart on the lower clutch of swivel nut below, the lower ring passes through a plurality of even board fixed connection with the swivel nut, circumference equipartition threaded connection has a plurality of bolts on the lower ring, the lower ring top is provided with the swivel, a plurality of vertical through-holes have been seted up to the circumference equipartition on the swivel. The utility model discloses, simple structure, convenient to use can carry out the leveling to the casing head, makes things convenient for the installation of follow-up equipment.
Description
Technical Field
The utility model relates to a petroleum equipment field, concretely relates to a ready-package casing head for oil recovery well head.
Background
The casing head is used for fixing a well mouth of a drilling well, connecting a well mouth casing string, supporting the gravity of a technical casing and an oil layer casing, sealing annular space between layers of pipes, providing transitional connection for installing a blowout preventer and a tubing head and a Christmas tree, and performing construction operations such as mud compensation, mud extrusion, monitoring, balance liquid filling and the like through two side ports on the casing head body. Because the well sealing assembly time of the casing head is long, before the casing head is assembled, oil gas in a high-pressure layer easily escapes out of the well, so that part of oil wells influence the exploitation due to gas and liquid leakage.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that one kind can install fast, simple structure, and convenient to use can carry out the leveling to the casing head, makes things convenient for the ready-package casing head of follow-up equipment fixing.
In order to realize the purpose, the utility model provides a technical scheme is:
the utility model provides a ready-package casing head for oil recovery well head, including the casing head body, casing head body upper end is fixed with the hanger, the flange formula parallel gate valve rather than inside intercommunication is all installed to casing head body both sides, casing head body lower extreme is fixed with the lower clutch rather than the intercommunication, the internal thread with outer tube connection is seted up to the lower clutch inner edge, threaded connection has rather than endocentric swivel nut on the lower clutch, the cover is equipped with rather than the lower ring of using the heart on the lower clutch of swivel nut below, lower ring and swivel nut are through a plurality of link plate fixed connection, circumference equipartition threaded connection has a plurality of bolts on the lower ring, the lower ring top is provided with the swivel, the annular has been seted up to swivel lower terminal surface inboard, lower ring outside upper portion is located the annular, the swivel rotates with the lower ring to be connected, a plurality of vertical through-holes have been seted up to the circumference.
Specifically, casing head body right side is provided with the manometer with the parallel gate valve intercommunication of flange formula on right side, is provided with the stop valve on the manometer.
Specifically, the upper end of the casing head body is in threaded connection with a jackscrew for fixing a hanger.
Specifically, the connecting plates are uniformly distributed according to the circumference of the axis of the casing head body.
Specifically, the internal thread in the lower joint is a tubular sealing thread.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses, through setting up rotatable change, can make the through-hole on the change correspond with the connecting hole of installation base to can realize quick installation, simple structure, convenient to use through rotating the bolt, make the bolt lower extreme tightly support the installation base, thereby can carry out the leveling to the casing head, make things convenient for the installation of follow-up equipment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in figure 1, a quick-mounting casing head for a petroleum production well head comprises a casing head body 1, a hanger 2 is fixed at the upper end of the casing head body 1, a jackscrew 6 for fixing the hanger 2 is connected with the upper end of the casing head body 1 through a thread, flange type parallel gate valves 3 communicated with the interior of the casing head body 1 are arranged on two sides of the casing head body 1, a pressure gauge 4 communicated with the flange type parallel gate valves 3 on the right side is arranged on the right side of the casing head body 1, a stop valve 5 is arranged on the pressure gauge 4, a lower connector 7 communicated with the lower end of the casing head body 1 is fixed at the lower end of the casing head body 1, an internal thread connected with an outer sleeve is arranged on the inner edge of the lower connector 7, the internal thread is a tubular sealing thread, a screw sleeve 8 concentric with the lower connector 7 is connected with the lower connector 7 below the screw sleeve 8 through a lower ring 14 concentric with the screw sleeve, and, a plurality of even boards 9 set up according to the axle center circumference equipartition of casing head body 1, and circumference equipartition threaded connection has a plurality of bolts 12 on the lower ring 14, and lower ring 14 top is provided with swivel 10, and swivel 10 lower extreme terminal surface inboard is opened and is equipped with annular 13, and 14 outside upper portions of lower ring are located annular 13, and swivel 10 rotates with lower ring 14 to be connected, and a plurality of vertical through-holes 11 have been seted up to the circumference equipartition on the swivel 10 in the annular 13 outside.
The utility model discloses the during operation, with outer tube and 7 threaded connection of lower clutch, then rotate lower ring 14 and swivel nut 8, swivel nut 8 spiral is down on lower clutch 7, lower ring 14 is close to the installation base gradually, when lower ring 14 contacts with the installation base, rotate bolt 12, make bolt 12 lower extreme tightly support installation base upper end, through rotating the bolt 12 of different positions, and then make casing head body 1 be in vertical state, prevent that casing head body 1 from taking place the slope, behind casing head body 1 leveling, rotate swivel 10, make through-hole 11 on swivel 10 correspond with the mounting hole on the installation base, then make swivel 10 and installation base fixed connection, thereby need not to make 1 global motion of casing head body align the mounting hole of installation base in the installation, can realize quick installation. The utility model discloses, through setting up rotatable change 10, can make the through-hole on the change 10 correspond with the connecting hole of installation base to can realize quick installation, simple structure, convenient to use through rotating bolt 12, make bolt 12 lower extreme tightly support the installation base, thereby can carry out the leveling to casing head body 1, make things convenient for the installation of follow-up equipment.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. A quick-mounting casing head for a petroleum production well head comprises a casing head body (1), a hanger (2) is fixed at the upper end of the casing head body (1), flange-type parallel gate valves (3) communicated with the interior of the casing head body (1) are respectively installed on two sides of the casing head body (1), and the quick-mounting casing head is characterized in that a lower joint (7) communicated with the casing head body is fixed at the lower end of the casing head body (1), an internal thread connected with an outer sleeve is arranged on the inner edge of the lower joint (7), a screw sleeve (8) concentric with the lower joint (7) is connected with the lower joint (7) through a thread, a lower ring (14) concentric with the lower joint (7) is sleeved on the lower part of the screw sleeve (8), the lower ring (14) is fixedly connected with the screw sleeve (8) through a plurality of connecting plates (9), a plurality of bolts (12) are uniformly distributed on the upper circumference of the lower ring (14) through a thread, a swivel (10) is arranged above, the upper part of the outer side of the lower ring (14) is positioned in the ring groove (13), the rotating ring (10) is rotatably connected with the lower ring (14), and a plurality of vertical through holes (11) are uniformly distributed on the circumference of the rotating ring (10) on the outer side of the ring groove (13).
2. The quick-assembly casing head for the petroleum production well head is characterized in that a pressure gauge (4) communicated with a flange type parallel gate valve (3) on the right side is arranged on the right side of the casing head body (1), and a stop valve (5) is arranged on the pressure gauge (4).
3. A quick-fit casing head for a petroleum production wellhead according to claim 1, characterized in that the upper end of the casing head body (1) is threadedly connected with a jackscrew (6) for fixing the hanger (2).
4. A quick-fit casing head for a petroleum production wellhead according to claim 1, characterized in that the said connecting plates (9) are uniformly arranged according to the circumference of the axis of the casing head body (1).
5. A quick-fit casing head for a petroleum production wellhead according to claim 1, characterized in that the internal thread in the lower connector (7) is a tubular sealing thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021127455.7U CN212898350U (en) | 2020-06-17 | 2020-06-17 | Quick-mounting casing head for petroleum production well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021127455.7U CN212898350U (en) | 2020-06-17 | 2020-06-17 | Quick-mounting casing head for petroleum production well head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212898350U true CN212898350U (en) | 2021-04-06 |
Family
ID=75278880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021127455.7U Active CN212898350U (en) | 2020-06-17 | 2020-06-17 | Quick-mounting casing head for petroleum production well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212898350U (en) |
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2020
- 2020-06-17 CN CN202021127455.7U patent/CN212898350U/en active Active
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