CN211692438U - Horn mouth device for measuring leakage speed - Google Patents
Horn mouth device for measuring leakage speed Download PDFInfo
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- CN211692438U CN211692438U CN202020103859.6U CN202020103859U CN211692438U CN 211692438 U CN211692438 U CN 211692438U CN 202020103859 U CN202020103859 U CN 202020103859U CN 211692438 U CN211692438 U CN 211692438U
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Abstract
A flare apparatus for measuring leak rate, comprising: the device comprises a bell mouth arranged on an offshore platform and a bell pipe sleeved in the bell mouth, wherein the inner wall of the bell mouth is provided with liquid level scales for metering shaft liquid; and a grouting opening is arranged at one side of the bell mouth, and a drilling fluid return opening is arranged at the other side of the bell mouth. The utility model discloses not only can measure 0.5m3The leakage time of the internal liquid can quickly obtain the accurate leakage speed, thereby providing guidance for the next operation; furthermore, the well is drilledWhen the operation overflow observation is carried out, any scale can be selected as a reference object for carrying out the overflow observation. Greatly reducing the time of stopping the pump and reducing the operation risk.
Description
Technical Field
The utility model belongs to the offshore oil engineering field especially relates to a bellmouth device of measurement leakage speed.
Background
At present, when the offshore platform carries out well completion and workover operation, the liquid loss speed of a shaft is required to be calculated so as to confirm the safety of well control. The existing metering is generally carried out by means of a metering tank (generally 5.0-8.0 m)3) The method is realized by a circulating liquid filling mode, and the leakage rate of the circulating liquid filling is calculated by measuring the leakage amount of the circulating liquid filling within a certain time. When the leakage rate of the liquid in the well is small, the calculated accurate leakage rate of the circulating filling liquid is long in time consumption. Considering that the offshore oil field is drilledThe cost of well repairing operation is high, so that the liquid loss speed of a shaft can be rapidly and accurately obtained, and guidance is provided for next operation.
On the other hand, when drilling operation is performed on an offshore platform, overflow observation is often performed on a drilled wellbore to confirm wellbore well control safety. The conventional method is to move the drilling tool for 3-5min to make the liquid level of the shaft flush with the drilling fluid return outlet, and select the drilling fluid return outlet as a reference object. This not only adds additional pump down time, but also increases operational risk.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bell mouth device of measurement leakage speed to solve and obtain accurate leakage speed fast and reduce the pump stopping time, reduce the technical problem of operation risk.
In order to achieve the above object, the specific technical solution of the bell mouth device for measuring the leakage rate of the utility model is as follows:
a flare apparatus for measuring leak rate, comprising: the device comprises a bell mouth arranged on an offshore platform and a bell pipe sleeved in the bell mouth, wherein the inner wall of the bell mouth is provided with liquid level scales for metering shaft liquid; and a grouting opening is arranged at one side of the bell mouth, and a drilling fluid return opening is arranged at the other side of the bell mouth.
Further, the bell mouth is of a cylindrical structure with the same upper and lower outer diameters; the external diameter of the bell mouth is phi 970mm, the internal diameter is phi 910mm, and the wall thickness is 30 mm.
Further, the maximum mark of the liquid level scale is 0.5m3The length of the mark is 0.77 m.
Further, the liquid level scale is arranged right below the drilling fluid return outlet, and the minimum measurement unit of the liquid level scale is 0.1m3Maximum metering volume of 0.5m3。
Furthermore, the grouting opening and the drilling fluid return outlet are connected to the bell mouth at a 90-degree position.
The utility model discloses a horn mouth device of measurement leakage speed has following advantage:
1. by means of an offshore platformThe metering device is added in the bell mouth, so that the metering precision reaches 0.1m3The metering volume reaches 0.5m3(ii) a And measured by 0.5m3The leakage time of the inner liquid can quickly obtain the accurate leakage speed, thereby providing guidance for the next operation.
2. By adding the metering device in the bell mouth of the offshore platform, any scale can be selected as a reference object for overflow observation during overflow observation of drilling operation. Greatly reducing the time of stopping the pump and reducing the operation risk.
Drawings
Fig. 1 is a schematic view of a bell mouth structure of the present invention;
fig. 2 is a schematic top view of the bell-mouth structure of the present invention.
The notation in the figure is:
1. a bell mouth; 2. grouting ports; 3. the drilling fluid returns to the outlet; 4. liquid level scales; 5. a flare tube.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.
As shown in fig. 1-2, the present invention includes: the device comprises a bell mouth 1 arranged on an offshore platform and a bell pipe 5 sleeved in the bell mouth 1, wherein the inner wall of the bell mouth 1 is provided with a liquid level scale 4 for metering shaft liquid; a grouting opening 2 is arranged on one side of the bell mouth 1, and a drilling fluid return opening 3 is arranged on the other side of the bell mouth 1.
The bell mouth 1 is a cylindrical structure with the same upper and lower outer diameters; the external diameter of the bell mouth 1 is phi 970mm, the internal diameter is phi 910mm, and the wall thickness is 30 mm; the maximum mark of the liquid level scale 4 is 0.5m3The length of the mark is 0.77 m.
The liquid level scale 4 is arranged right below the drilling fluid return outlet 3, and the minimum measurement unit of the liquid level scale is 0.1m3Maximum metering volume of 0.5m3。
The grouting opening 2 and the drilling fluid return opening 3 are connected to the bell mouth 1 at a 90-degree position.
During the use, return export 3 with horn mouth 1, grout mouth 2, drilling fluid and link into an integrated entity to be provided with the liquid level scale 4 that is used for measuring pit shaft liquid on the inner wall of horn mouth 1, during the connection, realize sealedly through the sealing washer between the two between horn pipe 5 and the horn mouth 1. When the shaft leakage speed needs to be measured, the liquid level of the shaft is flush with the drilling fluid return outlet 3 through the pipe column in the movable well, the meter is clamped for timing, the time required by a certain volume is shortened through measuring the liquid in the shaft, the shaft liquid leakage speed can be calculated, the method is convenient and fast, and the measuring precision is high. On the other hand, when overflow observation is needed, any scale on the liquid level scale 4 can be selected as a reference object to observe the wellhead, so that the method is convenient and fast, and the operation risk is greatly reduced.
It should be noted that: the bell mouth 1 is a part of a wellhead device on a blowout preventer stack when the offshore platform is used for drilling and completing workover operations, and the device is known by all people in the field of offshore oil engineering.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above-mentioned unexplained technologies are prior art and will not be described in detail.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.
Claims (5)
1. A flare apparatus for measuring leak rate, comprising: the device comprises a bell mouth arranged on an offshore platform and a bell pipe sleeved in the bell mouth, wherein the inner wall of the bell mouth is provided with liquid level scales for metering shaft liquid; and a grouting opening is arranged at one side of the bell mouth, and a drilling fluid return opening is arranged at the other side of the bell mouth.
2. The apparatus of claim 1, wherein the flare is a cylindrical structure having a uniform upper and lower outer diameter; the external diameter of the bell mouth is phi 970mm, the internal diameter is phi 910mm, and the wall thickness is 30 mm.
3. The flare apparatus for measuring leak rate of claim 1, wherein the maximum mark of the liquid level scale is 0.5m3The length of the mark is 0.77 m.
4. The flare apparatus for measuring the loss rate of a drilling fluid according to claim 1 or 3, wherein the liquid level scale is arranged right below the drilling fluid outlet, and the minimum measurement unit of the liquid level scale is 0.1m3Maximum metering volume of 0.5m3。
5. The apparatus of claim 1 wherein the grouting port is connected to the flare at a 90 degree angle to the drilling fluid return port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020103859.6U CN211692438U (en) | 2020-01-17 | 2020-01-17 | Horn mouth device for measuring leakage speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020103859.6U CN211692438U (en) | 2020-01-17 | 2020-01-17 | Horn mouth device for measuring leakage speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211692438U true CN211692438U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020103859.6U Active CN211692438U (en) | 2020-01-17 | 2020-01-17 | Horn mouth device for measuring leakage speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211692438U (en) |
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2020
- 2020-01-17 CN CN202020103859.6U patent/CN211692438U/en active Active
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