An oil and gas wellhead and casing head integrated device and control system thereof
By adopting a directional casing design in the integrated oil and gas wellhead and casing head device with a tightly fitted outer shell and inner shell, and utilizing the connection of transverse ducts, hydraulic pipelines and telescopic pipes, automatic directional adjustment is achieved when pressure changes, solving the problem of impact force caused by pressure changes and improving the sealing and stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU SUBO PETROCHEMICAL MASCH CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-05-01
AI Technical Summary
Existing integrated oil and gas wellhead and casing head devices are prone to generating impact forces when pressure changes, making it inconvenient to divert oil and gas resources.
It adopts a split-tube shell design with a tightly fitted outer shell and inner shell. Through the connection of transverse ducts, hydraulic pipelines and telescopic pipes, it uses driven gears and opening and closing valve blocks to achieve automatic directional adjustment when the pressure changes.
It can automatically adjust the output direction of oil and gas resources when the pressure changes, which improves the sealing and stability of the equipment, prevents leakage, and ensures the effective output of oil and gas resources.
Smart Images

Figure CN121138769B_ABST
Abstract
Description
An integrated device for oil and gas wellhead and casing head and its control system Technical Field
[0001] This invention relates to the field of oil and gas wellhead and casing head technology, and in particular to an integrated device for oil and gas wellhead and casing head and its control system. Background Technology
[0002] Oil and gas wells, also known as "production wells," are boreholes drilled into the formation according to a specific well layout system specifically for extracting underground oil or natural gas. They may also be wells converted from other types of drilling for oil or gas production. Casing is typically installed in these wells, and cement is injected between the outer wall of the casing and the wellbore to protect the wellbore, seal the aquifer, and isolate different oil layers. Oil and gas tubing is also installed in the casing. When used for oil extraction, it is called an "oil well"; when used for natural gas extraction, it is called a "natural gas well" or "gas well." The casing head is used to fix the wellhead, connect the casing string, support the weight of the technical casing and the oil layer casing, seal the annular space between the casing layers, provide a transition connection for installing blowout preventers, tubing heads, and Christmas trees, and allows for drilling operations such as mud filling, monitoring, and adding balancing fluid through two side openings on the casing head body.
[0003] Existing integrated casing head and wellhead devices, such as the one disclosed in CN201910292228.5, include a base, a casing head body mounted on the base, and slips, a technical casing hanger, and a tubing hanger mounted on the casing head body. A balancing mechanism is symmetrically arranged on both sides of the casing head body, located between the slips and the technical casing hanger, and between the technical casing hanger and the tubing hanger. The balancing mechanism includes a balancing pipe and a flange, a pressure safety observation device, a pressure protection valve, a pressure gauge, an injection valve, and an injection pressure gauge mounted on the balancing pipe. A lateral pressure relief mechanism is provided between the injection valve and the pressure protection valve. This invention features a novel design and a simple, reasonable structure. It not only effectively protects the pressure gauge on the balancing pipeline but also allows for pressure relief when the annular space pressure is high and pressure replenishment when the annular space pressure is too low. Furthermore, it facilitates construction operations such as mud replenishment, monitoring, and adding balancing fluid. However, in the aforementioned technologies, the pressure generated is uniformly output, which can easily cause the pressure to exert impact forces on the equipment, making it difficult to divert oil and gas resources when the pressure changes. Therefore, we propose an integrated device for oil and gas wellhead and casing head, along with its control system, to solve the above problems. Summary of the Invention
[0004] To address the aforementioned problems, this invention proposes an integrated device for oil and gas wellhead and casing head, and its control system. This integrated device and control system primarily utilizes an outer casing and an inner casing tightly fitted onto the inner side of the directional casing. This allows the transverse duct to be connected to the hydraulic pipeline, the first telescopic pipe, and the second telescopic pipe in stages. Pressure is applied to the first telescopic pipe and the semi-circular plate, and after compression, the pressure is transmitted through the first telescopic pipe, the transverse duct, and the hydraulic pipeline to the second telescopic pipe, which in turn feeds the pressure into the rack. After transmission, the driven gear outputs power, causing the upper threaded sleeve and the opening / closing valve block to open. This allows the device to automatically adjust the output direction when pressure changes.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] An integrated oil and gas wellhead and casing head device includes a bridging assembly and a directional output mechanism. A bolted support assembly is provided on the upper side of the bridging assembly, and a bolted casing head pressure testing component is provided at the top of the support assembly. A bolted oil and gas pipe output component is provided at the top of the casing head pressure testing component, and a sealing and seepage prevention mechanism that is plugged into and connected to the bridging assembly is installed inside the oil and gas pipe output component. The bolted directional output mechanism is provided at the top of the oil and gas pipe output component.
[0007] As a further technical solution, the bridging assembly includes a reinforced concrete base, a reinforced concrete sleeve, a bridging pipe, a bridging flange, multiple rubber rings, and a top-inserting arc ring. The reinforced concrete base has a reinforced concrete sleeve on its inner side, and the reinforced concrete sleeve has a bridging pipe for sleeve installation on its inner side. The bridging pipe has a bridging flange on its inner middle part, multiple rubber rings on its outer upper part, and a top-inserting arc ring at its top.
[0008] As a further technical solution, the supporting assembly includes an assembly base plate, a shock-absorbing damping seat, a raised base chamber, bolted side frames, a lower sleeve, a lower inner shell, a raised plate, and a lower rubber ring. The assembly base plate is bolted to the upper perimeter of the reinforced concrete base. A shock-absorbing damping seat is provided above the assembly base plate, and a raised base chamber is provided at the top of the shock-absorbing damping seat. A bolted side frame is provided on the outer side of the raised base chamber, and a lower sleeve is provided above the bolted side frame. A lower inner shell is provided on the inner side of the lower sleeve, a raised plate is provided above the lower sleeve, and a lower rubber ring is provided on the inner side of the raised plate.
[0009] As a further technical solution, the casing head pressure testing component includes a casing flange, casing bolts, casing shell, spline drive bar, hexagonal nut, plug base, clamping ring, casing side chamber, casing output valve, sealing flange, spring assembly, pressure testing plate, sensing base, and pressure gauge. The casing flange is bolted to the upper side of the shim plate by the casing bolts. The casing shell is disposed on the upper inner side of the casing flange, and the spline drive bar is disposed on the inner side of the casing flange. Furthermore, a hexagonal nut is provided at one end of the spline drive bar, a plug-in base is provided at the inner end of the spline drive bar, and a clamping ring is provided on the inner side of the plug-in base. A casing side compartment for installing the casing output valve is provided on the side of the casing shell, and a sealing flange is provided at one end of the casing side compartment. A spring assembly is provided on the inner side of the sealing flange, and a pressure measuring plate is provided at the inner end of the spring assembly. A sensing base for installing a pressure gauge is provided on the outer side of the sealing flange.
[0010] As a further technical solution, the oil and gas pipeline output component includes a lower annular isolation plate, an oil and gas flange, oil and gas bolts, an oil and gas pipeline shell, an oil and gas pipeline side compartment, a first oil and gas pipeline output valve, a second oil and gas pipeline inner valve, and a second oil and gas pipeline outer valve. The lower annular isolation plate is disposed at the top of the sleeve flange. An oil and gas flange for mounting the oil and gas pipeline shell is bolted to the upper part of the lower annular isolation plate via oil and gas bolts. An oil and gas pipeline side compartment is provided on the outer side of the oil and gas pipeline shell, and a first oil and gas pipeline output valve is provided on one set of outer sides of the oil and gas pipeline side compartment. A second oil and gas pipeline inner valve is provided on the other set of outer sides of the oil and gas pipeline side compartment, and a second oil and gas pipeline outer valve is provided at the output end of the second oil and gas pipeline inner valve.
[0011] As a further technical solution, the sealing and seepage prevention mechanism includes an arc-shaped groove insert outer seat, a top gasket, an inner patch, a lower threaded rubber shell, a connecting frame, a gear transmission chamber, a splined groove seat, a lower threaded sleeve, an inner lining rubber ring, a bridging rubber ring, an inner tube segment, a movable base, a movable strip, a connecting strip, an insertion tube segment, and a stabilizing ball. The arc-shaped groove insert outer seat is sleeved and connected to the inner side of the oil and gas pipe shell. A bolt-fitted top gasket is provided above the arc-shaped groove insert outer seat, and an inner patch is provided on the inner side of the top gasket. A lower threaded rubber shell is provided on the inner side below the inner patch. A connecting frame is provided below the lower threaded rubber shell, and a gear transmission chamber is provided on the inner side of the connecting frame. A splined groove seat is provided above the gear transmission chamber. A lower threaded sleeve is provided at the output end of the gear transmission chamber, and an inner lining rubber ring is provided at the outer end of the lower threaded sleeve.
[0012] As a further technical solution, a bridging rubber ring is provided above the inner end of the lower screw shell, and an inner tube plate is provided on the inner side of the bridging rubber ring. A movable base is provided above the side of the top gasket, and a movable strip is provided above the movable base. A mating strip is provided below one end of the movable strip, and a receiving tube plate is provided below the mating strip. A stabilizing ball is provided on the inner side above the receiving tube plate.
[0013] As a further technical solution, the directional output mechanism includes an upper annular isolation plate, a directional flange, a directional pipe shell, a reinforcing shell, an outer casing, an inner casing, a partition plate, a transverse duct, a hydraulic pipeline, a first telescopic pipe, a semi-arc plate, a second telescopic pipe, a rack, a driven gear, an upper threaded sleeve, an opening and closing valve block, a partition pipe shell, an ejector valve block, a low-pressure outlet valve block, and a high-pressure outlet valve block. The upper annular isolation plate is located at the top of the oil and gas flange. A directional flange for mounting the directional pipe shell is bolted to the upper annular isolation plate. A reinforcing shell is located on the outer side of the directional pipe shell. A partition pipe shell is located above the directional pipe shell, and an ejector valve block is located at the top of the partition pipe shell. A low-pressure outlet valve block is located on one side of the partition pipe shell, and a high-pressure outlet valve block is located on the other side of the partition pipe shell.
[0014] As a further technical solution, an outer casing is provided on the inner side of the directional tube shell, and an inner casing is provided on the inner side of the outer casing. A partition plate is provided on the inner side of the inner casing, and a transverse duct is provided on the inner side above the partition plate. A hydraulic pipe is provided below one end of the transverse duct, and a first telescopic pipe with a semi-arc plate is provided below one end of the hydraulic pipe. A second telescopic pipe is provided below the other end of the hydraulic pipe, and a rack is provided below the second telescopic pipe. A driven gear is meshed with the rack on one side, and an upper threaded sleeve is provided at the output end of the driven gear. An opening and closing valve block is provided at the output end of the upper threaded sleeve.
[0015] As a further technical solution, in use, after laying and filling a reinforced concrete base and a reinforced concrete sleeve at the production location of the oil and gas wellhead, the bridging pipe is placed on the inner side of the reinforced concrete sleeve, so that the input end of the bridging pipe is connected to the oil and gas field's collection point. The bridging pipe is then bolted to the bridging flange and connected to the raised base chamber, so that multiple rubber rings and top insert arc rings are respectively connected to the casing head pressure testing component and the sealing and seepage prevention mechanism to achieve a sealed connection output effect. After the raised base chamber is bolted to the bridging flange, the lower perimeter of the raised base chamber is connected to the upper perimeter of the reinforced concrete base by the installed shock-absorbing damping seats and the mounting base bolts, and the bolt side brackets are bolted to the sides of the raised base chamber to support the lower casing. The lower inner sleeve and the lower rubber ring on the inner side of the raised plate seal the bridge pipe to prevent leakage. After the bridge and support assembly are set up, the sleeve flange is bolted to the side of the raised plate using sleeve bolts. The sleeve flange engages with the hexagonal nut at one end of the spline drive bar, causing the spline drive bar to helically drive. The output end of the spline drive bar is inserted into the insertion base. After insertion and fixing, the clamping ring tightly fits the bridge pipe and the bridge pipe engages with the multi-turn rubber ring, which is then helically inserted into the inner side of the sleeve shell for further sealing. When the equipment is running, the spring bar on the sealing flange side and the pressure gauge... The pressure inside the pipeline is measured, and the sensor base transmits the data after the pressure test, which is then displayed on the pressure gauge. When a measurable output is required, the casing output valve at one end of the casing side chamber is opened to achieve the measurable output effect. Next, the oil and gas pipe output component is connected via oil and gas bolts and an oil and gas flange, with the lower annular isolation plate bolted to the top side of the casing flange. This connection allows the first oil and gas pipe output valve, the second oil and gas pipe inner valve, and the second oil and gas pipe outer valve at both ends of the oil and gas pipe side chamber to be connected as needed to achieve the effect of oil and gas resource output. When a sealed connection is required, an arc-shaped groove insert is inserted and installed above the top insert arc ring to achieve an annular connection. The effect of the arc-shaped insertion is achieved by bolting a top washer onto the top bolt of the arc-shaped slotted outer seat. An inner patch is then placed on the inner side of the top washer, allowing the inner side of the inner patch to clamp the upper and lower screw housings. Output is achieved through the splined slot seat above the gear transmission compartment. After spiral transmission, the gear transmission compartment outputs power, and the lower threaded sleeve is adjusted spirally, causing the inner lining rubber ring to engage with the inner wall of the bridge pipe, achieving a locking effect. A sealing sleeve is then used above the inner end of the lower screw housing using the inner lining rubber ring and bridge rubber ring to further improve the equipment's sealing performance. The rotating base and moving strip then engage the insertion strip with the insertion tube plate, allowing the stabilizing ball to stabilize the oil and gas flow after the equipment is running. When output is required...The outer casing and inner casing are separated by a partition plate, separating the upper transverse duct. A hydraulic pipeline connects to the first and second telescopic pipes. When the hydraulic system outputs oil and gas, the first telescopic pipe contacts the semi-arc plate, causing the oil and gas flow to increase. This pressure compresses the first telescopic pipe, resulting in strong pressure acting on the second telescopic pipe and rack. After output through the rack, the pressure meshes with the driven gear, causing the upper threaded sleeve to spiral, opening the partition plate to achieve a powerful output. The output from the outer casing, inner casing, and partition plate leads to the output from the branch pipe shell, reinforcing shell, and partition pipe shell. Finally, the ejector valve block, low-pressure outlet valve block, and high-pressure outlet valve block output the required oil and gas resources as needed.
[0016] Compared with the prior art, the beneficial effects of the present invention are:
[0017] The invention mainly utilizes the outer shell and inner shell of the machine tool to be tightly fitted on the inner side of the branch pipe shell, so that the transverse duct is connected to the hydraulic pipeline, the first telescopic pipe and the second telescopic pipe in stages, so that the pressure can act on the first telescopic pipe and the semi-arc plate. After compression, the first telescopic pipe, together with the transverse duct and the hydraulic pipeline, transmits the pressure to the second telescopic pipe and inputs it to the rack. After transmission, the driven gear outputs and runs, which opens the upper threaded sleeve and the opening and closing valve block, so that the equipment can automatically adjust the output direction when the pressure changes. Attached Figure Description
[0018] Figure 1 is a schematic diagram of an integrated oil and gas wellhead and casing head device and its control system.
[0019] Figure 2 is a schematic diagram of the structure from below in this invention;
[0020] Figure 3 is a cross-sectional structural diagram of the present invention;
[0021] Figure 4 is a structural schematic diagram of the bridging kit component in this invention;
[0022] Figure 5 is a structural schematic diagram of the support sleeve assembly in this invention;
[0023] Figure 6 is a schematic diagram of the pressure measuring component of the bushing head in this invention;
[0024] Figure 7 is a schematic diagram of the spline drive bar and hexagonal nut in this invention;
[0025] Figure 8 is a schematic diagram of the sealing and seepage prevention mechanism in this invention;
[0026] Figure 9 is a schematic diagram of the bridging rubber ring and inner tube sheet in this invention;
[0027] Figure 10 is a schematic diagram of the split-direction output mechanism in this invention;
[0028] Figure 11 is a schematic diagram of the structure of the low-pressure outlet valve block and the high-pressure outlet valve block in this invention.
[0029] In the diagram: 1. Bridging assembly; 101. Reinforced concrete base; 102. Reinforced concrete sleeve; 103. Bridging pipe; 104. Bridging flange; 105. Multi-ring rubber ring; 106. Top-inserted arc ring; 2. Support assembly; 201. Assembly base plate; 202. Vibration damping seat; 203. Elevated base; 204. Bolted side frame; 205. Lower sleeve; 206. Lower inner sleeve; 207. Elevation plate; 208. Lower rubber ring; 3. Sleeve head pressure testing component; 301. Sleeve flange; 302. Sleeve bolt; 303. Sleeve shell; 304. 1. Spline drive bar; 305. Hexagonal nut; 306. Insert base; 307. Clamping ring; 308. Casing side compartment; 309. Casing output valve; 3010. Sealing flange; 3011. Spring assembly; 3012. Pressure gauge; 3013. Sensor base; 3014. Pressure gauge; 4. Oil and gas pipe output components; 401. Lower annular isolation plate; 402. Oil and gas flange; 403. Oil and gas bolt; 404. Oil and gas pipe shell; 405. Oil and gas pipe side compartment; 406. First output valve of oil and gas pipe; 407. Second output inner valve of oil and gas pipe. ; 408. Second external valve for oil and gas pipeline; 5. Sealing and anti-seepage mechanism; 501. Arc-shaped groove insert seat; 502. Top gasket; 503. Inner patch; 504. Lower threaded rubber shell; 505. Connecting frame; 506. Gear transmission compartment; 507. Splined groove seat; 508. Lower threaded sleeve; 509. Inner liner rubber ring; 5010. Bridging rubber ring; 5011. Inner tube segment; 5012. Movable base; 5013. Movable bar; 5014. Insertion bar; 5015. Insertion tube segment; 5016. Stabilizing ball; 6. Directional output mechanism; 601. Upper 602. Annular isolation plate; 603. Dividing flange; 604. Dividing pipe shell; 605. Reinforcing shell; 606. I-shell; 607. I-shell; 608. Dividing inner shell; 609. Partition plate; 6000. Transverse duct; 6010. Hydraulic pipeline; 6011. First telescopic pipe; 6012. Semi-arc plate; 6013. Second telescopic pipe; 6014. Rack; 6015. Driven gear; 6016. Upper threaded sleeve; 6017. Opening and closing valve block; 6018. Dividing pipe shell; 6019. Ejector valve block; 6020. Low-pressure outlet valve block; 6020. High-pressure outlet valve block. Detailed Implementation
[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.
[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0033] Please refer to Figures 1-11. In this embodiment of the invention, an integrated device for oil and gas wellhead and casing head includes a bridging assembly 1 and a directional output mechanism 6. A bolted support assembly 2 is provided on the upper side of the bridging assembly 1, and a bolted casing head pressure testing component 3 is provided at the top of the support assembly 2. A bolted oil and gas pipe output component 4 is provided at the top of the casing head pressure testing component 3, and a sealing and seepage prevention mechanism 5 is installed inside the oil and gas pipe output component 4 and plugged into the bridging assembly 1. The bolted directional output mechanism 6 is provided at the top of the oil and gas pipe output component 4.
[0034] The bridging assembly 1 includes a reinforced concrete base 101, a reinforced concrete sleeve 102, a bridging pipe 103, a bridging flange 104, a multi-ring rubber seal 105, and a top-inserted arc ring 106. The reinforced concrete base 101 is provided with the reinforced concrete sleeve 102 on its inner side, and the reinforced concrete sleeve 102 is provided with the bridging pipe 103 for sleeve installation on its inner side. The bridging flange 104 is provided on the inner side of the middle part of the bridging pipe 103. The multi-ring rubber seal 105 is provided on the outer side of the upper part of the bridging pipe 103, and the top-inserted arc ring 106 is provided on the top of the bridging pipe 103.
[0035] In an embodiment of the present invention, after the steel-concrete base 101 and steel-concrete sleeve 102 are laid and filled at the production location of the oil and gas wellhead, the bridging pipe 103 is set on the inner side of the steel-concrete sleeve 102, so that the input end of the bridging pipe 103 is connected to the collection location of the oil and gas field, and the bridging pipe 103 is bolted to the bridging flange 104 and the raised base 203, so that the multi-turn rubber ring 105 and the top insertion arc ring 106 are respectively connected to the casing head pressure measuring component 3 and the sealing and seepage prevention mechanism 5 to achieve the effect of sealed connection output.
[0036] The supporting assembly 2 includes an assembly base plate 201, a damping seat 202, a raised base 203, a bolt side frame 204, a lower sleeve 205, a lower inner shell 206, a raised plate 207, and a lower rubber ring 208. The assembly base plate 201 is bolted to the upper perimeter of the reinforced concrete base 101. The damping seat 202 is provided on the upper part of the assembly base plate 201, and the raised base 203 is provided at the top of the damping seat 202. The bolt side frame 204 is provided on the outer side of the raised base 203, and the lower sleeve 205 is provided on the upper part of the bolt side frame 204. The lower inner shell 206 is provided on the inner side of the lower sleeve 205. The raised plate 207 is provided on the upper inner side of the raised plate 207. The lower rubber ring 208 is provided on the upper inner side of the raised plate 207.
[0037] In an embodiment of the present invention, after the bridging flange 104 is bolted onto the raised base 203, the lower periphery of the raised base 203 is bolted to the upper periphery of the reinforced concrete base 101 via the installed shock-absorbing damping seat 202 and the mounting base 201. The bolt side bracket 204 is bolted to the side of the raised base 203, and the lower sleeve 205 provides support. The bridging pipe 103 is sealed and sleeved with the lower inner sleeve 206 and the lower rubber ring 208 on the inner side of the raised plate 207 to prevent leakage. After the bridging assembly 1 and the supporting assembly 2 are set, the sleeve bolt 302 is bolted to the sleeve flange 301 on the upper side of the raised plate 207.
[0038] The casing head pressure testing component 3 includes a casing flange 301, casing bolts 302, casing shell 303, spline drive bar 304, hexagonal nut 305, plug base 306, clamping ring 307, casing side chamber 308, casing output valve 309, sealing flange 3010, spring assembly 3011, pressure testing plate 3012, sensing base 3013, and pressure gauge 3014. The casing flange 301 is bolted to the upper side of the shim plate 207 by the casing bolts 302. The casing shell 303 is located on the upper inner side of the casing flange 301, and the spline drive bar 304 is located on the inner side of the casing flange 301. Furthermore, a hexagonal nut 305 is provided at one end of the spline drive bar 304, a plug-in base 306 is provided at the inner end of the spline drive bar 304, and a clamping ring 307 is provided on the inner side of the plug-in base 306. A casing side compartment 308 for installing the casing output valve 309 is provided on the side of the casing shell 303, and a sealing flange 3010 is provided at one end of the casing side compartment 308. A spring assembly 3011 is provided on the inner side of the sealing flange 3010, and a pressure measuring plate 3012 is provided at the inner end of the spring assembly 3011. A sensing base 3013 for installing the pressure gauge 3014 is provided on the outer side of the sealing flange 3010.
[0039] In an embodiment of the present invention, the sleeve flange 301 is engaged with the hexagonal nut 305 at one end of the spline drive bar 304 to perform a spiral operation. The spiral operation of the hexagonal nut 305 causes the spline drive bar 304 to perform a spiral drive operation. The output end of the spline drive bar 304 is inserted into the insertion base 306. After being fixed by insertion, the clamping ring 307 tightly sleeves the bridge pipe 103, and the bridge pipe 103 is engaged with the multi-turn rubber ring 105 and spirally inserted into the inner side of the sleeve shell 303 to achieve a further sealing effect. When the equipment is running, the spring assembly 3011 and pressure measuring plate 3012 on one side of the sealing flange 3010 measure the pressure inside the pipeline. After the pressure test, the sensing base 3013 transmits the data so that the data can be displayed through the pressure gauge 3014. When a measurable output is required, the sleeve output valve 309 at one end of the sleeve side chamber 308 is opened to achieve the measurable output effect.
[0040] The oil and gas pipeline output component 4 includes a lower annular isolation plate 401, an oil and gas flange 402, an oil and gas bolt 403, an oil and gas pipeline shell 404, an oil and gas pipeline side compartment 405, a first oil and gas pipeline output valve 406, a second oil and gas pipeline output inner valve 407, and a second oil and gas pipeline output outer valve 408. The lower annular isolation plate 401 is located at the top of the casing flange 301. The oil and gas flange 402, which is used to install the oil and gas pipeline shell 404, is bolted to the upper part of the lower annular isolation plate 401 by the oil and gas bolt 403. An oil and gas pipeline side compartment 405 is provided on the outer side of the oil and gas pipeline shell 404. The first oil and gas pipeline output valve 406 is provided on one set of outer sides of the oil and gas pipeline side compartment 405, and the second oil and gas pipeline output inner valve 407 is provided on the other set of outer sides of the oil and gas pipeline side compartment 405. The output end of the second oil and gas pipeline output inner valve 407 is provided with the second oil and gas pipeline output outer valve 408.
[0041] In an embodiment of the present invention, the oil and gas pipeline output component 4 is then connected to the oil and gas flange 402 via oil and gas bolts 403, so that the lower annular isolation plate 401 is bolted to the top side of the casing flange 301. This connection allows the first oil and gas pipeline output valve 406, the second oil and gas pipeline output inner valve 407, and the second oil and gas pipeline output outer valve 408 at both ends of the oil and gas pipeline side chamber 405 to be connected as needed to achieve the effect of oil and gas resource output.
[0042] The sealing and seepage prevention mechanism 5 includes an arc-shaped groove insert outer seat 501, a top gasket 502, an inner patch 503, a lower threaded rubber shell 504, a connecting frame 505, a gear transmission compartment 506, a spline groove seat 507, a lower threaded sleeve 508, an inner lining rubber ring 509, a bridging rubber ring 5010, an inner tube segment 5011, a movable base 5012, a movable strip 5013, a connecting strip 5014, a receiving tube segment 5015, and a stabilizing ball 5016. The arc-shaped groove insert outer seat 501 is sleeved and connected to the inner side of the oil and gas pipe shell 404. A top washer 502 for bolt assembly is provided above 01, and an inner patch 503 is provided on the inner side of the top washer 502. A lower screw housing 504 is provided on the inner side below the inner patch 503. A connecting frame 505 is provided below the lower screw housing 504. A gear transmission compartment 506 is provided on the inner side of the connecting frame 505. A spline slot seat 507 is provided above the gear transmission compartment 506. A lower threaded sleeve 508 is provided at the output end of the gear transmission compartment 506, and an inner lining rubber ring 509 is provided at the outer end of the lower threaded sleeve 508.
[0043] In embodiments of the present invention, when a sealing connection is required, an arc-shaped slotted insert outer seat 501 is inserted and installed above the top insert arc ring 106 to achieve an annular arc-shaped insertion effect. Then, a top gasket 502 is bolted to the top layer of the arc-shaped slotted insert outer seat 501, so that an inner patch 503 is provided on the inner side of the top patch 502, so that the lower inner side of the inner patch 503 clamps the upper and lower screw rubber shells 504 and outputs through the spline slot seat 507 above the gear transmission chamber 506. After the spiral transmission, the gear transmission chamber 506 outputs transmission, and after the lower threaded sleeve 508 is spirally adjusted, the inner lining rubber ring 509 is clamped on the inner wall of the bridge pipe 103 to achieve a clamping effect.
[0044] A bridging rubber ring 5010 is provided above the inner end of the lower screw shell 504, and an inner tube plate 5011 is provided on the inner side of the bridging rubber ring 5010. A movable base 5012 is provided above the side of the top gasket 502, and a movable strip 5013 is provided above the movable base 5012. A matching strip 5014 is provided below one end of the movable strip 5013, and a receiving tube plate 5015 is provided below the matching strip 5014. A stabilizing ball 5016 is provided on the inner side above the receiving tube plate 5015.
[0045] In embodiments of the present invention, the sealing performance of the equipment is further improved by using an inner lining rubber ring 509 and a bridging rubber ring 5010 to seal the upper part of the inner end of the lower screw shell 504. After the movable base 5012 and the movable strip 5013 rotate, the insert strip 5014 is inserted into the inserting tube piece 5015 so that the stabilizing ball 5016 can achieve a stabilizing effect on the flow of oil and gas after the equipment is running.
[0046] The directional output mechanism 6 includes an upper annular isolation plate 601, a directional flange 602, a directional pipe shell 603, a reinforcing shell 604, an outer casing 605, an inner casing 606, a partition plate 607, a transverse duct 608, a hydraulic pipeline 609, a first telescopic pipe 6010, a semi-arc plate 6011, a second telescopic pipe 6012, a rack 6013, a driven gear 6014, an upper threaded sleeve 6015, an opening and closing valve block 6016, a partition pipe shell 6017, an ejector valve block 6018, a low-pressure output valve block 6019, and a high-pressure output valve block 6010. 020, the upper annular isolation plate 601 is set at the top of the oil and gas flange 402. The upper annular isolation plate 601 is bolted to the upper flange 602 for installing the branch pipe shell 603. The outer side of the branch pipe shell 603 is provided with a reinforcing shell 604. The upper part of the branch pipe shell 603 is provided with a partition pipe shell 6017, and the top of the partition pipe shell 6017 is provided with a push-out valve block 6018. One side of the partition pipe shell 6017 is provided with a low-pressure outlet valve block 6019, and the other side of the partition pipe shell 6017 is provided with a high-pressure outlet valve block 6020.
[0047] In embodiments of the present invention, after the outgoing output of the outer casing 605, the inner casing 606, and the partition plate 607, the outgoing pipe shell 603, the reinforcing shell 604, and the partition pipe shell 6017 are output, and after output, the ejector valve block 6018, the low-pressure outlet valve block 6019, and the high-pressure outlet valve block 6020 output the oil and gas resources to be transmitted as needed.
[0048] A working shell 605 is provided on the inner side of the branch pipe shell 603, and an inner working shell 606 is provided on the inner side of the working shell 605. A partition plate 607 is provided on the inner side of the inner working shell 606, and a transverse duct 608 is provided on the inner side above the partition plate 607. A hydraulic pipe 609 is provided below one end of the transverse duct 608, and a first telescopic pipe 6010 for installing a semi-arc plate 6011 is provided below one end of the hydraulic pipe 609. A second telescopic pipe 6012 is provided below the other end of the hydraulic pipe 609, and a rack 6013 is provided below the second telescopic pipe 6012. A driven gear 6014 is provided on one side of the rack 6013, and an upper threaded sleeve 6015 is provided at the output end of the driven gear 6014. An opening and closing valve block 6016 is provided at the output end of the upper threaded sleeve 6015.
[0049] In embodiments of the present invention, when output is required, the outer casing 605 and the inner casing 606 are separated by a partition plate 607, separating the upper transverse duct 608. A hydraulic pipe 609 is connected to the first telescopic pipe 6010 and the second telescopic pipe 6012. When outputting via hydraulic pressure, the first telescopic pipe 6010 contacts the semi-arc plate 6011, allowing the hydraulic pressure to press against the first telescopic pipe 6010. After pressing, a strong pressure is applied to the second telescopic pipe 6012 and the rack 6013. After output via the rack 6013, the gear meshes with the driven gear 6014 for output operation. This causes the upper threaded sleeve 6015 to spiral, thereby opening the partition plate 607 via the opening / closing valve block 6016 to achieve a powerful output effect.
[0050] A control system for an integrated oil and gas wellhead and casing head device is as follows: During use, a reinforced concrete base 101 and a reinforced concrete casing 102 are laid and filled at the wellhead's extraction location. A bridging pipe 103 is then positioned on the inner side of the reinforced concrete casing 102, with its input end connected to the oil and gas field's extraction location. The bridging pipe 103, in conjunction with a bridging flange 104, is bolted to an elevated base 203. Multiple rubber rings 105 and a top-inserted arc ring 106 are then connected to the casing head pressure testing component 3 and the sealing and anti-seepage mechanism 5, respectively, to achieve a sealed connection output. After the elevated base 203 is bolted to the bridging flange 104, shock absorbers are installed around the lower perimeter of the elevated base 203. The damping seat 202 is bolted to the upper perimeter of the reinforced concrete base 101 in conjunction with the mounting base 201, and the bolt side bracket 204 is bolted to the side of the raised base 203, allowing the lower sleeve 205 to provide support. Together with the upper and lower inner sleeves 206 and the lower rubber ring 208 on the inner side of the raised plate 207, the bridging pipe 103 is sealed to prevent leakage. After the bridging assembly 1 and the support assembly 2 are set up, the sleeve bolts 302 are bolted to the sleeve flange 301 on the upper side of the raised plate 207, allowing the sleeve flange 301 to engage with the hexagonal nut 305 at one end of the spline drive bar 304 for spiral operation. The spiral operation of the hexagonal nut 305 causes the spline drive bar to... The moving bar 304 operates with a screw drive. The output end of the spline drive bar 304 is inserted into the insertion base 306. After being fixed by insertion, the clamping ring 307 tightly fits the bridge pipe 103, and the bridge pipe 103, in conjunction with the multi-turn rubber ring 105, is screwed into the inner side of the casing 303 to achieve a further sealing effect. When the equipment is running, the spring bar 3011 and pressure measuring plate 3012 on one side of the sealing flange 3010 measure the pressure inside the pipeline. After the pressure test, the sensing base 3013 transmits the data, which is then displayed by the pressure gauge 3014. When a measurable output is required, the casing at one end of the casing side chamber 308 is used. After the output valve 309 is opened, it achieves a measurable output effect. Then, the oil and gas pipe output component 4 is connected to the oil and gas flange 402 via oil and gas bolts 403, so that the lower annular isolation plate 401 is bolted to the top side of the sleeve flange 301. This connection allows the first output valve 406, the second output inner valve 407, and the second output outer valve 408 at both ends of the oil and gas pipe side chamber 405 to be connected as needed to achieve the effect of oil and gas resource output. When a sealing connection is required, an arc-shaped groove insert outer seat 501 is inserted and installed above the top insert arc ring 106 to achieve an annular arc-shaped insertion effect. Then, a top gasket 502 is bolted to the top layer of the arc-shaped groove insert outer seat 501.The inner side of the top gasket 502 is provided with an inner patch 503, so that the inner side of the inner patch 503 is clamped to the upper and lower screw housings 504. The output is carried out through the spline slot seat 507 above the gear transmission chamber 506. After the screw transmission, the gear transmission chamber 506 outputs the transmission, and after the lower threaded sleeve 508 is screwed, the inner lining rubber ring 509 is clamped onto the inner wall of the bridge pipe 103 to achieve the clamping effect. The lower screw housing 504 is located above the inner end. The sealing performance of the equipment is further improved by using inner lining rubber ring 509 and bridging rubber ring 5010 for sealing connection. After the movable base 5012 and movable bar 5013 rotate, the insert bar 5014 is inserted into the insertion receiving tube 5015 so that the stabilizing ball 5016 can stabilize the oil and gas flow after the equipment is running. When output is required, the partition plate 607 inside the outer casing 605 and inner casing 606 is used to separate the upper transverse duct. Channel 608 is connected to the first telescopic pipe 6010 and the second telescopic pipe 6012 via hydraulic pipe 609. When the oil-pneumatic hydraulic system outputs power, the first telescopic pipe 6010 comes into contact with the semi-arc plate 6011, causing the oil and gas flow to increase. This pressure compresses the first telescopic pipe 6010, resulting in strong pressure acting on the second telescopic pipe 6012 and the rack 6013. After output through the rack 6013, the pressure meshes with the driven gear 6014 for output operation. This allows the upper threaded sleeve 6015 to spiral, causing the opening / closing valve block 6016 to open the partition plate 607, achieving a powerful output effect. Through the branching output via the outer casing 605, inner casing 606, and partition plate 607, the branching pipe casing 603, reinforcing casing 604, and partition pipe casing 6017 also output power. After output, the ejector valve block 6018, low-pressure outlet valve block 6019, and high-pressure outlet valve block 6020 output the required oil and gas resources as needed.
[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An integrated device for oil and gas wellhead and casing head, comprising a bridging assembly (1) and a directional output mechanism (6), characterized in that: A bolt-assembled support assembly (2) is provided on the upper side of the bridging assembly (1), and a bolt-assembled sleeve head pressure measuring component (3) is provided at the top of the support assembly (2). A bolt-assembled oil and gas pipe output component (4) is provided at the top of the sleeve head pressure measuring component (3), and a sealing and anti-seepage mechanism (5) that is plugged into and connected to the bridging assembly (1) is installed inside the oil and gas pipe output component (4). A bolt-assembled branching output mechanism (6) is provided at the top of the oil and gas pipe output component (4). The branching output mechanism (6) includes an upper annular isolation plate (601), a branching flange (602), a branching pipe shell (603), a reinforcing shell (604), and a working shell. (605), inner shell (606), partition plate (607), transverse duct (608), hydraulic pipeline (609), first telescopic pipe (6010), semi-arc plate (6011), second telescopic pipe (6012), rack (6013), driven gear (6014), upper threaded sleeve (6015), opening and closing valve block (6016), partition shell (6017), ejector valve block (6018), low-pressure outlet valve block (6019) and high-pressure outlet valve block (6020), the upper annular partition plate (601) is set at the top of the oil and gas pipe output component (4), and the upper annular partition plate (601) is bolted to the upper part of the upper annular partition plate (601) to install the directional flange (602) of the directional shell (603), and so on. A reinforcing shell (604) is provided on the outer side of the branch pipe shell (603). A partition shell (6017) is provided above the branch pipe shell (603), and an ejector valve block (6018) is provided at the top of the partition shell (6017). A low-pressure outlet valve block (6019) is provided on one side of the partition shell (6017), and a high-pressure outlet valve block (6020) is provided on the other side of the partition shell (6017). A working shell (605) is provided on the inner side of the branch pipe shell (603), and a working inner shell (606) is provided on the inner side of the working outer shell (605). A partition plate (607) is provided on the inner side of the working inner shell (606), and an upper inner side of the partition plate (607) is provided on the inner side. A transverse duct (608) is provided, and a hydraulic pipe (609) is provided below one end of the transverse duct (608). A first telescopic pipe (6010) for mounting a semi-arc plate (6011) is provided below one end of the hydraulic pipe (609). A second telescopic pipe (6012) is provided below the other end of the hydraulic pipe (609). A rack (6013) is provided below the second telescopic pipe (6012). A driven gear (6014) is provided on one side of the rack (6013) and meshes with it. An upper threaded sleeve (6015) is provided at the output end of the driven gear (6014). An opening and closing valve block (6016) is provided at the output end of the upper threaded sleeve (6015).
2. The integrated oil and gas wellhead and casing head device according to claim 1, characterized in that: The bridging assembly (1) includes a reinforced concrete base (101), a reinforced concrete sleeve (102), a bridging pipe (103), a bridging flange (104), a multi-ring rubber ring (105), and a top-inserting arc ring (106). The reinforced concrete base (101) is provided with a reinforced concrete sleeve (102) on its inner side, and the reinforced concrete sleeve (102) is provided with a bridging pipe (103) for sleeve installation on its inner side. The bridging flange (104) is provided on the inner side of the middle part of the bridging pipe (103), the multi-ring rubber ring (105) is provided on the outer side of the upper part of the bridging pipe (103), and the top-inserting arc ring (106) is provided on the top of the bridging pipe (103).
3. The integrated oil and gas wellhead and casing head device according to claim 2, characterized in that: The supporting assembly (2) includes an assembly base plate (201), a shock-absorbing damping seat (202), a raised base (203), bolted side frames (204), a lower sleeve (205), a lower inner sleeve (206), a raised plate (207), and a lower rubber ring (208). The assembly base plate (201) is bolted to the upper perimeter of the reinforced concrete base (101). A shock-absorbing damping seat (202) is provided above the assembly base plate (201), and the shock-absorbing... The top of the base (202) is provided with a raised base (203), the outer side of the raised base (203) is provided with a bolt side frame (204), and a lower sleeve (205) is provided above the bolt side frame (204). A lower inner shell (206) is provided on the inner side of the lower sleeve (205), a shim plate (207) is provided above the lower sleeve (205), and a lower rubber ring (208) is provided on the inner side above the shim plate (207).
4. The integrated oil and gas wellhead and casing head device according to claim 3, characterized in that: The casing head pressure measuring component (3) includes a casing flange (301), casing bolts (302), casing shell (303), spline drive bar (304), hexagonal nut (305), plug base (306), clamping ring (307), casing side chamber (308), casing output valve (309), sealing flange (3010), spring assembly (3011), pressure measuring plate (3012), sensing base (3013), and pressure gauge (3014). The casing flange (301) is bolted to the upper side of the shim plate (207) by the casing bolts (302). The casing shell (303) is provided on the upper inner side of the casing flange (301), and the spline drive bar (304) is provided on the inner side of the casing flange (301). The spline drive bar (304) is provided with a hexagonal nut (305) at one end, and a plug-in base (306) is provided at the inner end of the spline drive bar (304). A clamping ring (307) is provided on the inner side of the plug-in base (306). A casing side chamber (308) for installing a casing output valve (309) is provided on the side of the casing shell (303). A sealing flange (3010) is provided at one end of the casing side chamber (308). A spring assembly (3011) is provided on the inner side of the sealing flange (3010). A pressure measuring plate (3012) is provided at the inner end of the spring assembly (3011). A sensing base (3013) for installing a pressure gauge (3014) is provided on the outer side of the sealing flange (3010).
5. The integrated oil and gas wellhead and casing head device according to claim 4, characterized in that: The oil and gas pipeline output component (4) includes a lower annular isolation plate (401), an oil and gas flange (402), an oil and gas bolt (403), an oil and gas pipeline shell (404), an oil and gas pipeline side compartment (405), a first oil and gas pipeline output valve (406), a second oil and gas pipeline output inner valve (407), and a second oil and gas pipeline output outer valve (408). The lower annular isolation plate (401) is located at the top of the sleeve flange (301), and the oil and gas bolt (403) passes above the lower annular isolation plate (401). An oil and gas flange (402) for mounting an oil and gas pipe housing (404) is bolted on. An oil and gas pipe side compartment (405) is provided on the outer side of the oil and gas pipe housing (404). An oil and gas pipe first output valve (406) is provided on one set of outer sides of the oil and gas pipe side compartment (405). An oil and gas pipe second output inner valve (407) is provided on the other set of outer sides of the oil and gas pipe side compartment (405). An oil and gas pipe second output outer valve (408) is provided at the output end of the oil and gas pipe second output inner valve (407).
6. The integrated oil and gas wellhead and casing head device according to claim 5, characterized in that: The sealing and seepage prevention mechanism (5) includes an arc-shaped groove insert outer seat (501), a top gasket (502), an inner patch (503), a lower threaded rubber shell (504), a connecting frame (505), a gear transmission compartment (506), a spline groove seat (507), a lower threaded sleeve (508), an inner lining rubber ring (509), a bridging rubber ring (5010), an inner tube segment (5011), a movable base (5012), a movable strip (5013), a connecting strip (5014), a receiving tube segment (5015), and a stabilizing ball (5016). The arc-shaped groove insert outer seat (501) is sleeved and connected to the inner side of the oil and gas pipe shell (404). A top washer (502) for bolt assembly is provided above the top washer (501), and an inner patch (503) is provided on the inner side of the top washer (502). A lower screw housing (504) is provided on the inner side below the inner patch (503). A connecting frame (505) is provided below the lower screw housing (504). A gear transmission compartment (506) is provided on the inner side of the connecting frame (505). A spline slot seat (507) is provided above the gear transmission compartment (506). A lower threaded sleeve (508) is provided at the output end of the gear transmission compartment (506), and an inner lining rubber ring (509) is provided at the outer end of the lower threaded sleeve (508).
7. The integrated oil and gas wellhead and casing head device according to claim 6, characterized in that: A bridging ring (5010) is provided above the inner end of the lower screw shell (504), and an inner tube plate (5011) is provided on the inner side of the bridging ring (5010). A movable base (5012) is provided above the side of the top gasket (502), and a movable strip (5013) is provided above the movable base (5012). A matching strip (5014) is provided below one end of the movable strip (5013), and a receiving tube plate (5015) is provided below the matching strip (5014). A stabilizing ball (5016) is provided on the inner side above the receiving tube plate (5015).
8. A control system for an integrated oil and gas wellhead and casing head device as described in claim 6 or 7, characterized in that: In use, after laying and filling the steel-concrete base (101) and steel-concrete sleeve (102) at the oil and gas wellhead extraction location, the bridging pipe (103) is set on the inner side of the steel-concrete sleeve (102), so that the input end of the bridging pipe (103) is connected to the extraction site of the oil and gas field, so that the bridging pipe (103) is bolted to the bridging flange (104) and the raised base (203), so that the multi-turn rubber ring (105) and the top insertion arc ring (106) are respectively connected to the casing head pressure measuring component (3) and the sealing and seepage prevention mechanism (5) to achieve the effect of sealing and connecting output. After the raised base (203) is bolted to the bridging flange (104), the lower perimeter of the raised base (203) is connected by the installed The damping seat (202) is bolted to the upper perimeter of the reinforced concrete base (101) in conjunction with the mounting base plate (201), and the bolt side bracket (204) is bolted to the side of the raised base (203), so that the lower sleeve (205) provides support. The upper and lower inner sleeves (206) and the lower rubber ring (208) on the inner side of the raised plate (207) seal the bridge pipe (103) to prevent leakage. After the bridge assembly (1) and the support assembly (2) are set, the sleeve bolts (302) and the sleeve flange (301) are bolted to the upper side of the raised plate (207), so that the sleeve flange (301) is engaged with the six-pointed star at one end of the spline drive bar (304). The hexagonal nut (305) operates in a spiral motion, causing the spline drive bar (304) to operate in a spiral motion. The output end of the spline drive bar (304) is inserted into the insertion base (306). After being fixed by insertion, the clamping ring (307) tightly fits the bridge pipe (103), and the bridge pipe (103) is screwed into the inner side of the sleeve shell (303) with the multi-turn rubber ring (105) to achieve a further sealing effect. When the equipment is running, the spring bar (3011) and pressure measuring plate (3012) on the sealing flange (3010) side measure the pressure inside the pipeline. After the pressure test, the sensing base (3013) transmits the pressure. Data is transmitted so that it can be displayed through the pressure gauge (3014). When a measurable output is required, the casing output valve (309) at one end of the casing side chamber (308) is opened to achieve the effect of measurable output. Then, the oil and gas pipeline output component (4) is connected by oil and gas bolts (403) and oil and gas flange (402) so that the lower annular isolation plate (401) is bolted to the top side of the casing flange (301). This connection allows the first oil and gas pipeline output valve (406), the second oil and gas pipeline output inner valve (407), and the second oil and gas pipeline output outer valve (408) at both ends of the oil and gas pipeline side chamber (405) to be connected as needed to achieve the effect of oil and gas resource output. When a sealing connection is required,An arc-shaped slotted insert outer seat (501) is then inserted and installed above the top insert arc ring (106) to achieve an annular arc-shaped insertion effect. Next, a top washer (502) is bolted to the top layer of the arc-shaped slotted insert outer seat (501), so that an inner patch (503) is placed on the inner side of the top washer (502), so that the inner side of the inner patch (503) clamps the upper and lower threaded rubber shells (504) and outputs through the spline slot seat (507) above the gear transmission chamber (506), so that after helical transmission, the gear transmission chamber (506) outputs transmission, and the lower threaded sleeve (5... 08) After spiral adjustment, the inner lining rubber ring (509) is snapped onto the inner wall of the bridge pipe (103) to achieve the snapping effect. The inner lining rubber ring (509) and the bridge rubber ring (5010) are used to seal the upper part of the inner end of the lower screw rubber shell (504) to further improve the sealing performance of the equipment. After the movable base (5012) and the movable bar (5013) rotate, the insert bar (5014) is inserted into the insert receiving tube plate (5015) so that the stabilizing ball (5016) can stabilize the flow of oil and gas after the equipment is running. When output is required, the external tool is used. The shell (605) is separated from the inner shell (606) by a partition plate (607), which separates the upper transverse duct (608). It is connected to the first telescopic pipe (6010) and the second telescopic pipe (6012) through a hydraulic pipe (609). When the oil-gas hydraulic system outputs, the first telescopic pipe (6010) contacts the semi-arc plate (6011) to increase the oil-gas flow, so that the oil-gas pressure presses the first telescopic pipe (6010). After pressing, a strong pressure is applied to the second telescopic pipe (6012) and the rack (6013). After output through the rack (6013), the components mesh. The driven gear (6014) operates, causing the upper threaded sleeve (6015) to spiral, which in turn causes the opening / closing valve block (6016) to open the partition plate (607) for a powerful output effect. Through the branching output of the outer casing (605), inner casing (606), and partition plate (607), the branching pipe shell (603), reinforcing shell (604), and partition pipe shell (6017) are output. After output, the ejector valve block (6018), low-pressure outlet valve block (6019), and high-pressure outlet valve block (6020) output the required oil and gas resources as needed.
Citation Information
Patent Citations
An integrated device for oil and gas wellhead and casing head
CN110107246B
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CN120486979A