CN212716520U - Simple and easy water pressure test wellhead assembly - Google Patents
Simple and easy water pressure test wellhead assembly Download PDFInfo
- Publication number
- CN212716520U CN212716520U CN202021422602.3U CN202021422602U CN212716520U CN 212716520 U CN212716520 U CN 212716520U CN 202021422602 U CN202021422602 U CN 202021422602U CN 212716520 U CN212716520 U CN 212716520U
- Authority
- CN
- China
- Prior art keywords
- sealing washer
- wellhead assembly
- manometer
- twice
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a simple and easy water pressure test wellhead assembly, include: the body, this internal twice sealing washer that is equipped with, twice be equipped with the viewing aperture on the body between the sealing washer, just the viewing aperture communicates to two between the sealing washer, still be equipped with manometer connector and advance/liquid outlet on the body, manometer connector and advance/liquid outlet are located twice respectively sealing washer upper portion department, manometer connector department is connected with first manometer. The device has a simple structure, the bottom end is a slope-shaped end surface, the installation process does not need equipment assistance, the installation is easy, the equipment disassembly and assembly labor intensity is reduced, the equipment installation time is saved, and the use is convenient; and the device interface is few, and the test process takes place the device and leaks the risk and hang down, avoids needing repeated test because of the device became invalid, causes man-hour to increase, the problem that the operating expenses promoted, reduces dismouting intensity of labour, improves efficiency of software testing.
Description
Technical Field
The utility model belongs to the technical field of oil development equipment instrument, a oil gas development well head operation instrument is related to, mainly be applied to and bore a well completion in long-time shut-in and carry out a simple and easy water pressure test wellhead assembly of water pressure test.
Background
The water pressure test is used as a verification means of the sealing capability of a stratum under a specific pressure condition, the water pressure test is a common operation in the implementation of oil and gas wells, part of wells have requirements on the long-term sealing capability of the stratum, long-time shaft water pressure test needs to be carried out, the test time is longer than 24 hours, the influence on the test result is reduced due to the need of accurately evaluating the sealing capability, the requirement on the sealing performance of the device is higher, and the water pressure test is only replaced by other equipment due to the fact that no special equipment exists at present. At present, shaft pressure testing is mainly carried out in two modes, one mode is that a well plugging device is adopted, a drill rod is sealed or a well is closed for pressure testing, the well plugging device is heavy, the disassembly and assembly working strength is high, the well plugging device is generally used for closing the well in a short time and is not used for closing the well for a long time, the sealing durability is general, the problem of sealing failure can occur under long-time use, and the analysis of a testing result is influenced; the other type is that various wellhead devices such as a bittern collecting tree, a gas collecting tree and the like are adopted, and the problems of heavy devices, complex structures and complex installation process also exist.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model provides a simple and easy water pressure test wellhead assembly has simple structure, and easy dismouting and use are reliable, reduce dismouting intensity of labour, improve efficiency of software testing's advantage.
The utility model provides a technical scheme that its technical problem adopted is: a simple hydraulic test wellhead comprising: the body, this internal twice sealing washer that is equipped with, twice be equipped with the viewing aperture on the body between the sealing washer, just the viewing aperture communicates to two between the sealing washer, still be equipped with manometer connector and advance/liquid outlet on the body, manometer connector and advance/liquid outlet are located twice respectively sealing washer upper portion department, manometer connector department is connected with first manometer.
In a preferred embodiment of the present invention, the observation port is connected to a second pressure gauge.
In a preferred embodiment of the present invention, the sealing ring is a rectangular sealing ring.
In a preferred embodiment of the present invention, the bottom end of the outer wall of the body extends out of the bottom end of the inner wall of the body, and a slope-shaped end surface is formed between the outer wall of the body and the inner wall of the body.
In a preferred embodiment of the present invention, the angle between the sloped end surface and the horizontal plane is 30-60 °.
In a preferred embodiment of the present invention, the liquid inlet/outlet is disposed on the side wall of the body, and the pressure gauge connector is disposed on the top end of the body.
In a preferred embodiment of the present invention, the liquid inlet/outlet is connected to a gate valve, the other end of the gate valve is connected to a liquid inlet/outlet pipeline, and the liquid inlet/outlet pipeline is connected to the liquid filling device.
In a preferred embodiment of the present invention, the body is stepped.
The utility model has the advantages that: the device has a simple structure, the bottom end is a slope-shaped end surface, the installation process does not need equipment assistance, the installation is easy, the equipment disassembly and assembly labor intensity is reduced, the equipment installation time is saved, and the use is convenient; and the device interface is few, and the test process takes place the device and leaks the risk and hang down, avoids needing repeated test because of the device became invalid, causes man-hour to increase, the problem that the operating expenses promoted, reduces dismouting intensity of labour, improves efficiency of software testing.
Drawings
FIG. 1 is a first schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example 1: a simple hydrostatic test wellhead as shown in fig. 1 and 2, comprising: the body 1, this internal twice sealing washer 2 that is equipped with of body 1, it is concrete, sealing washer 2 is the rectangle sealing washer, is equipped with viewing aperture 3 on the body between twice sealing washer 2, and viewing aperture 3 intercommunication to between two sealing washers 2, still is equipped with manometer connector 4 on the body 1 and advances/liquid outlet 5, and manometer connector 4 and advance/liquid outlet 5 are located 2 upper portions departments of twice sealing washer respectively, and manometer connector 4 department is connected with first manometer 6. The observation port 3 is connected with a second pressure gauge.
With this device cover on the sleeve pipe body, correspond respectively first manometer 6 and second manometer and be connected with manometer connector 4, viewing aperture 3, then 5 connection gate valves of liquid outlet 8, the gate valve 7 other end links to each other with entering/play liquid pipeline, and it is connected with priming device to enter/play liquid pipeline, moulds plastics sealed twice rectangle sealing washer through the mouth of moulding plastics at last, realizes sealing between this device and the casing string.
In this application, body 1 is the step form, is convenient for set up into/liquid outlet, manometer connector and viewing aperture on the body, and is specific, advances/liquid outlet 5 and sets up on 1 lateral wall of body, and manometer connector 4 sets up on the top of body 1.
During the concrete test, open the gate valve 8 of liquid inlet/outlet 5 department, pour into test liquid into, wait the manometer to rise to test pressure upper limit value, stop to pour into test liquid into, close gate valve 8. If the pressure drops to exceed the minimum pressure value required by the test in the test, the gate valve 8 can be opened, the test liquid is injected again to increase the pressure to the upper limit value of the pressure required by the test, and the liquid loss rate is calculated by measuring the liquid amount supplemented from the minimum pressure value to the maximum value for multiple times.
In the test process, if two rectangular sealing rings of the device fail, the pressure fluctuation of a second pressure gauge 7 at the observation port 3 can be found; and after the test is finished, opening the gate valve 8 at the liquid inlet/outlet 5 to release the pressure of the shaft, releasing the pressure at the two rectangular sealing rings through the injection molding port after the pressure of the shaft is released, and taking down the wellhead testing device from the sleeve after the pressure relief is finished. The two rectangular sealing rings and the sleeve wall form a closed space, so that the sealing device can play a role of a sealing device and can also be used for righting the device; if rectangular sealing fails, pressure in the shaft can be transmitted to a closed space between two rectangular sealing rings through the rectangular sealing rings, pressure in the closed space changes, and can be observed through a second pressure gauge connected to the observation hole, so that the reliability of the device is improved, and the accuracy of the test is improved.
Example 2: as shown in FIG. 2, the bottom end of the outer wall of the body 1 extends out of the bottom end of the inner wall of the body, and a slope-shaped end surface 7 is formed between the outer wall of the body and the inner wall of the body. Specifically, the angle between the slope-shaped end surface 7 and the horizontal plane is 30-60 degrees.
The slope structure is arranged at the bottom end of the lower part of the device, so that the device is easy to install, the labor intensity of equipment disassembly and assembly is reduced, and the device is convenient to install on the sleeve body; the two injection-molded rectangular sealing rings in the device can realize the sealing between the device and the casing body, and the rectangular sealing rings can be observed whether to lose efficacy through the observation port between the two rectangular seals and the second pressure gauge connected with the observation port, so that the device can be centered and the effect of the sealing device is removed; this device simple structure reduces the device total weight, and the interface is less, reduces to reveal the inefficacy risk that arouses, improves the device reliability, promotes the test accuracy.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.
Claims (8)
1. The utility model provides a simple and easy water pressure test wellhead assembly which characterized in that includes: the body, this internal twice sealing washer that is equipped with, twice be equipped with the viewing aperture on the body between the sealing washer, just the viewing aperture communicates to two between the sealing washer, still be equipped with manometer connector and advance/liquid outlet on the body, manometer connector and advance/liquid outlet are located twice respectively sealing washer upper portion department, manometer connector department is connected with first manometer.
2. The simple hydraulic pressure testing wellhead assembly according to claim 1, wherein a second pressure gauge is connected to the observation port.
3. The simple hydraulic test wellhead assembly of claim 2 wherein the seal ring is a rectangular seal ring.
4. The simple hydraulic test wellhead assembly of claim 1, wherein the bottom end of the outer wall of the body extends out of the bottom end of the inner wall of the body, and a ramp-shaped end surface is formed between the outer wall of the body and the inner wall of the body.
5. The simple hydraulic test wellhead assembly of claim 4 wherein the angle between the sloped end face and the horizontal is between 30 ° and 60 °.
6. The simple hydraulic test wellhead assembly of claim 1, wherein the inlet/outlet ports are disposed on a side wall of the body and the pressure gauge connection port is disposed on a top end of the body.
7. The simple hydraulic pressure testing wellhead device according to claim 6, wherein the liquid inlet/outlet is connected with a gate valve, the other end of the gate valve is connected with a liquid inlet/outlet pipeline, and the liquid inlet/outlet pipeline is connected with a liquid injection device.
8. The simple hydraulic test wellhead assembly of any of claims 1 to 7 wherein the body is stepped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021422602.3U CN212716520U (en) | 2020-07-17 | 2020-07-17 | Simple and easy water pressure test wellhead assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021422602.3U CN212716520U (en) | 2020-07-17 | 2020-07-17 | Simple and easy water pressure test wellhead assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212716520U true CN212716520U (en) | 2021-03-16 |
Family
ID=74906828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021422602.3U Active CN212716520U (en) | 2020-07-17 | 2020-07-17 | Simple and easy water pressure test wellhead assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212716520U (en) |
-
2020
- 2020-07-17 CN CN202021422602.3U patent/CN212716520U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206233918U (en) | Oil/gas Well cement sheath sealing integrity test device | |
| CN103603651A (en) | Device and method for testing stability of coal seam gas extraction drilled hole | |
| CN106593411A (en) | Experimental device and method for airtightness of cement sheath and uplifting of casings | |
| CN212716520U (en) | Simple and easy water pressure test wellhead assembly | |
| CN105136643B (en) | The implementation method of one-way flow dynamic pressure mercury system under effective overburden pressure | |
| CN116291716A (en) | Goaf sealing device is used in mine | |
| CN109736779A (en) | A kind of pressure break radius measurement method of this coal seam hydraulic fracture | |
| CN213450479U (en) | Self-adaptive bag hole sealing device | |
| CN216277773U (en) | Take monitoring function well head sealer | |
| CN205823270U (en) | A kind of annular pressure for deep seafloor well head is monitored and controls device | |
| CN209764342U (en) | Thermal recovery packing element locking test device | |
| CN213180660U (en) | Reverse pressure-bearing testing arrangement of float shoe | |
| CN204283316U (en) | A kind of high temperature compressed formula packing element test setting tool | |
| CN213392124U (en) | Blowout preventer pressure testing device based on no bridge plug of rotary layer well or lost circulation well | |
| CN209892140U (en) | Light changing rod device for pumping wellhead of oilfield machine | |
| CN207687688U (en) | A kind of harmful influence non-stop plugging drilling system | |
| CN102767368B (en) | Simulation experiment device for polyurethane-based reinforced shaft wall | |
| CN104019775A (en) | Method and system for measuring length of buried pipe | |
| CN104675357B (en) | Simple wellhead device and application method thereof | |
| CN2924070Y (en) | Two-way oil pump | |
| CN205297465U (en) | Shale gas wellhead assembly | |
| CN220153817U (en) | Air tightness detection device for aerospace component production | |
| CN214794366U (en) | Temporary plugging agent performance testing device | |
| CN205089300U (en) | Water injection string pressure testing seat seals supporting device | |
| CN214247275U (en) | Gas production tree convenient for medicament filling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |