CN111397478A - Christmas tree displacement monitoring device - Google Patents
Christmas tree displacement monitoring device Download PDFInfo
- Publication number
- CN111397478A CN111397478A CN202010225775.4A CN202010225775A CN111397478A CN 111397478 A CN111397478 A CN 111397478A CN 202010225775 A CN202010225775 A CN 202010225775A CN 111397478 A CN111397478 A CN 111397478A
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- China
- Prior art keywords
- christmas tree
- displacement
- scale
- range finder
- monitoring device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Abstract
The invention relates to a Christmas tree displacement monitoring device, which comprises a Christmas tree main body, a laser range finder connected with the Christmas tree main body and a scale table arranged below the laser range finder, wherein the laser range finder is arranged on the lower part of the laser range finder; the scale table is of a multi-stage step structure, each stage is of a cylindrical structure, the center of the topmost cylinder is a zero point, and a scale mark is formed at the edge of each stage; and the laser focus emitted by the laser range finder in an initial state is aligned with the zero point, and the vertical displacement and horizontal displacement data of the Christmas tree are obtained through the distance change data of the laser focus when the laser focus is at the zero point or moves to any step. The device adopts laser rangefinder, and mechanical parts is few, and the interference killing feature is strong, can realize continuous monitoring, provides accurate effectual data for single well dynamic analysis and emergency treatment.
Description
Technical Field
The invention relates to the technical field of oil and gas development engineering measurement, in particular to a Christmas tree displacement monitoring device.
Background
In oil and gas exploitation and development, oil and gas production needs to be controlled and regulated through a production tree, and daily management and working system adjustment are carried out on an oil and gas well. The production tree is an extremely important device in the oil and gas production process, and the lifting condition of the production tree exists in the production process due to factors such as well temperature and the like of part of wells. Particularly, in an offshore oil and gas exploitation platform, due to the severe working environment, the Christmas tree can not only rise, but also shake when storms are large. The lifting and shaking of the christmas tree may cause the pipeline to deform and even break, seriously affecting the production stability and the site safety.
In order to prevent accidents caused by the rise and shaking of the Christmas tree, monitoring is required in daily production, and measures such as production reduction and the like are taken when necessary. The monitoring mode of present treeing height is fairly simple, pastes the scale on the production tree body, and personnel record production tree height through the scale of visualing when patrolling and examining, and figure 1 is the monitoring mode of present production tree height. Christmas tree shaking is currently only monitored visually and is not monitored specially. The existing monitoring mode has the following defects:
reading error: an operator reads the tree height by looking up the scale and the upper edge of the comparison object, and reading difference can be caused by slight standing or sight line deviation of the same operator; the rough monitoring mode has the advantages that the cheating end is more obvious when different operators read the information, and the reading error is larger.
The online monitoring can not be carried out: the existing scheme can only be used for reading on site and monitoring in real time, and particularly when the typhoon mode is produced, personnel can remotely monitor on the land, the site can not patrol and examine, and effective basis can not be provided for emergency treatment.
The monitoring cannot be continuous: the method is limited by the number of inspection times of personnel, only a few data are available every day, and accurate and effective data cannot be provided for single-well dynamic analysis.
Disclosure of Invention
The invention aims to solve the technical problem of providing a Christmas tree displacement monitoring device.
The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a Christmas tree displacement monitoring device, which comprises a Christmas tree main body, a laser range finder connected with the Christmas tree main body and a scale table arranged below the laser range finder;
the scale table is of a multi-stage step structure, each stage is of a cylindrical structure, the center of the topmost cylinder is a zero point, and a scale mark is formed at the edge of each stage;
and the laser focus emitted by the laser range finder in an initial state is aligned with the zero point, and the vertical displacement and horizontal displacement data of the Christmas tree are obtained through the distance change data of the laser focus when the laser focus is at the zero point or moves to any step.
Preferably, each step of the scale platform has an equal height.
Preferably, the device also comprises a digital display displacement sensor which is connected with the laser range finder and used for processing vertical displacement and horizontal displacement data and displaying data.
Preferably, the device further comprises a central control room operation station which is connected with the digital display displacement sensor and is used for processing the data transmitted by the digital display displacement sensor.
Preferably, the system further comprises an alarm device which is connected with the central control room operation station and is used for sending an alarm signal when the displacement of the Christmas tree exceeds a preset range.
Preferably, the digital display displacement sensor is in communication connection with the laser range finder and the central control room operating station through a power supply and a signal line.
Preferably, the scale table is arranged on the vertical lifting table or the positioning table.
Preferably, the Christmas tree further comprises a graduated scale which is arranged on the vertical lifting platform or the positioning platform and the height direction of the graduated scale is parallel to the height direction of the Christmas tree; and
and the pointer is connected with the laser range finder and marks vertical displacement data on the graduated scale.
Preferably, the scale table and the scale are fixedly mounted on the vertical lifting table or the positioning table through fasteners.
Preferably, the laser rangefinder is detachably mounted to the christmas tree body by a connection.
The implementation of the invention has the following beneficial effects: this production tree displacement monitoring devices adopts laser rangefinder, and mechanical parts is few, and the interference killing feature is strong, can realize continuous monitoring, provides accurate effectual data for single well dynamic analysis and emergency treatment.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a prior art method of measuring Christmas tree height;
FIG. 2 is a schematic structural diagram of a displacement monitoring device of a Christmas tree according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a Christmas tree displacement monitoring device according to another embodiment of the present invention;
FIG. 4 is a schematic view of the structure of the scale bed of the present invention;
FIG. 5 is a side view of the scale bed of FIG. 4;
FIG. 6 is a top view of the scale bed of FIG. 4
Figure 7 is a top view of the scale bed of some embodiments of figure 4.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it is to be understood that the orientations and positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "leading", "trailing", and the like are configured and operated in specific orientations based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the device or element referred to must have a specific orientation, and thus, are not to be construed as limiting the present invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
As shown in fig. 2-3, the displacement monitoring device for the christmas tree of the present invention comprises a christmas tree main body 1, and is characterized by further comprising a laser range finder 2 connected with the christmas tree main body 1, and a scale table 3 disposed below the laser range finder 2. The christmas tree comprises a christmas tree body 1 and a plurality of valves arranged on the christmas tree body 1.
As shown in fig. 4-6, this scale platform 3 is multistage step structure, and each step all is the cylinder structure, and top cylinder center is 31 at zero point, and the edge of each step forms scale mark 32, and the diameter of each step can set up according to actual demand, like 5mm, 10mm, 15mm etc. the height of each step of this scale platform 3 is impartial to reduce the judgement error. As shown in fig. 7, the upper surface of the step may also be artificially provided with a plurality of graduated rings 33 for viewing by a field operator.
The laser focus of the laser range finder 2 in the initial state is aligned with the zero point 31, as shown in the figure, the laser ray 21 is aligned with the upper surface of the scale table 3, and the vertical displacement and the horizontal displacement data of the Christmas tree are obtained through the distance change data when the laser focus is at the zero point 31 or moves to any step. Of course, the laser ranging method can be changed into the acoustic ranging method or other ranging methods according to actual conditions.
The adjacent step edges form a groove structure because of height change, and the laser range finder 2 can accurately monitor whether jumping occurs. When the Christmas tree shakes, the focus of the laser range finder 2 deviates from the zero point 31 of the scale table 3, and the position of the laser focus from the zero point 31 is the horizontal displacement data of the Christmas tree and can be regarded as the shaking condition of the Christmas tree; when the shake amplitude of the Christmas tree exceeds the step of the scale table 3, the tree height of the Christmas tree is suddenly increased (the increased height is the height of the step of the scale table), and the tree height is the vertical displacement value of the Christmas tree.
In this embodiment, this laser range finder 2 passes through connecting piece 12 demountable installation to on the christmas tree main part 1, is in the same place laser range finder 2 is fixed with christmas tree main part 1, guarantees both synchronous movement. This laser range finder 2 is explosion-proof laser range finder, and this connecting piece 12 can establish the sleeve outside this laser range finder 2 casings and connect this telescopic locating lever including the cover, and this locating lever can be welded on christmas tree main part 1, also can fasten to the lateral surface that changes christmas tree main part 1 through locking bolt etc.. Of course, it is also possible to weld the laser range finder 2 housing directly through the positioning rod at one end and weld the other end to the christmas tree body 1, and it is understood that the connecting member 12 may have various structural forms.
Further, the device also comprises a digital display displacement sensor 4 which is connected with the laser range finder 2 and is used for processing vertical displacement and horizontal displacement data and displaying data.
And a central control room operation station 5 which is connected with the digital display displacement sensor 4 and is used for processing the data transmitted by the digital display displacement sensor 4. The digital display displacement sensor 4 is connected with the laser range finder 2 through a power supply and a signal wire, can directly read on site, can convert the signal into a 4-20mA current signal and transmit the current signal to the central control room operating station 5, and realizes remote monitoring.
This digital display displacement sensor 4 includes processing unit, display element and memory cell, can handle the displacement data that laser range finder 2 gathered to show by this display element, so that the field work personnel look over, this memory cell is used for saving relevant data, so that the staff can pass through external equipment, like USB flash disk, etc. with data copy.
The central control room control station 5 is configured with an associated processing system, which can process the collected displacement data, such as forming the calibration table 3 into spatial coordinates, to determine the displacement direction and the displacement of the christmas tree.
In some embodiments, the apparatus further comprises a graphic collector, such as an industrial camera, arranged facing the scale table 3, which can process the picture by taking a picture of the scale table 3 and sending the picture to the central control room operating station 5 through a data line or through a local area network or the like, to obtain displacement data or the like.
In this embodiment, digital display displacement sensor 4 and laser range finder 2, central control room operation station 5 all are connected through power and signal line 6 communication, certainly, also can be through setting up the communication module in laser range finder 2, digital display displacement sensor 4 inside, carry out communication connection such as WIFI module, 3G/4G/5G module, zigBee module.
The monitoring system further comprises an alarm device which is connected with the central control room operation station 5 and is used for sending an alarm signal when the displacement of the Christmas tree exceeds a preset range, wherein the alarm device can be a buzzer, an L ED indicator light and the like, and the central control room operation station 5 can also send alarm information to equipment carried by an operator.
The central control room operation station 5 is used for on-line remote monitoring, the tree height can be connected into an ESD emergency shutdown system, and the tree height is higher than a set alarm threshold value, so that well shut-in can be triggered, and more accidents are avoided.
Furthermore, the graduated table 3 is arranged on the vertical lifting table 7 or the positioning table 8, and also comprises a graduated scale 9 which is arranged on the vertical lifting table 7 or the positioning table 8 and has the height direction parallel to the height direction of the Christmas tree; and a pointer 10 connected to the laser rangefinder 2 and identifying vertical displacement data on the scale 9.
The graduated scale 9 and the pointer 10 are combined to measure the tree height on site, and compared with the laser range finder 2 for use, the graduated scale can provide data for field personnel when the electric instrument device fails.
In the present embodiment, the scale 9 and the scale table 3 are adjusted to an appropriate height (determined according to the christmas tree zero point 31 position) using the vertical lift table 7, the center position of the scale table 3 (the scale table zero point 31 position) is aligned with the focal point of the laser range finder 2, and then fixed. It is also possible to fix the positioning table 8 directly in the predetermined position.
It can be understood that the tree height is visually displayed on the graduated scale 9, and the display unit of the digital display displacement sensor 4 is matched on site for direct reading, so that the reading error is eliminated. Further, the aforementioned graph collector may also collect a picture facing the scale 9 and transmit the picture to the central control room operating station 5, and the graph collector may also be a closed circuit monitoring camera, which can capture the conditions of the scale table 3 and the scale 9 and transmit the picture to the central control room operating station 5 for the operator to check, and the closed circuit monitoring camera may also receive a control signal from the central control room operating station 5 to turn to a preset camera angle, so that the operator can check the relevant picture.
Further, the scale table 3 and the scale 9 are fixedly mounted on the vertical lifting table 7 or the positioning table 8 through a fastener 11.
The fastening element 11 may be a fixed base, or a fastening bolt, or glue, etc.
Compared with the existing monitoring mode, the monitoring method has obvious advantages and mainly comprises the following points:
1. and laser ranging is adopted, so that the number of mechanical parts is small, and the anti-interference capability is strong.
2. The indication value is accurate: laser ranging and pointer ranging are combined, and numerical value accuracy is greatly improved.
3. The reading is accurate: the tree height is visually displayed on the graduated scale, and the tree height can be directly read through the display screen on site, so that reading errors are eliminated.
4. In the existing online remote monitoring, the tree height can be accessed into an ESD emergency shutdown system, and the tree height is higher than an alarm threshold value to trigger well shutdown, so that larger accidents are avoided;
5. the continuous monitoring can be realized, and accurate and effective data are provided for single-well dynamic analysis and emergency treatment.
It is to be understood that the foregoing examples, while indicating the preferred embodiments of the invention, are given by way of illustration and description, and are not to be construed as limiting the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. A displacement monitoring device for a Christmas tree comprises a Christmas tree main body (1), and is characterized by also comprising a laser range finder (2) connected with the Christmas tree main body (1), and a scale table (3) arranged below the laser range finder (2);
the scale table (3) is of a multi-stage step structure, each stage is of a cylindrical structure, the center of the topmost cylinder is a zero point, and the edge of each stage forms a scale mark;
the laser focus emitted by the laser range finder (2) in an initial state is aligned with the zero point, and the vertical displacement and horizontal displacement data of the Christmas tree are obtained through distance change data when the laser focus is at the zero point or moves to any step.
2. Christmas tree displacement monitoring device according to claim 1, wherein each step of the scale table (3) is equal in height.
3. The Christmas tree displacement monitoring device according to claim 1, further comprising a digital display displacement sensor (4) connected with the laser range finder (2) and used for processing vertical displacement and horizontal displacement data and displaying data.
4. The Christmas tree displacement monitoring device according to claim 3, further comprising a central control room operating station (5) connected with the digital display displacement sensor (4) and used for processing data transmitted by the digital display displacement sensor (4).
5. The christmas tree displacement monitoring device according to claim 4, further comprising an alarm device connected to the central control room operator station (5) for emitting an alarm signal when the christmas tree displacement exceeds a preset range.
6. The Christmas tree displacement monitoring device according to claim 4, wherein the digital display displacement sensor (4) is in communication connection with the laser range finder (2) and the central control room operating station (5) through a power supply and signal line (6).
7. Christmas tree displacement monitoring device according to claim 6, wherein the scale table (3) is arranged on a vertical lift table (7) or on a positioning table (8).
8. The Christmas tree displacement monitoring device according to claim 7, further comprising a scale (9) which is arranged on the vertical lifting platform (7) or the positioning platform (8) and has a height direction parallel to the height direction of the Christmas tree; and
a pointer (10) connected to the laser range finder (2) and identifying vertical displacement data on the scale (9).
9. Christmas tree displacement monitoring device according to claim 8, wherein the scale bed (3) and the scale (9) are fixedly mounted to the vertical lift table (7) or the positioning table (8) by means of fasteners (11).
10. The christmas tree displacement monitoring device according to claim 1, wherein the laser rangefinder (2) is detachably mounted to the christmas tree body (1) by means of a connection (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010225775.4A CN111397478A (en) | 2020-03-26 | 2020-03-26 | Christmas tree displacement monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010225775.4A CN111397478A (en) | 2020-03-26 | 2020-03-26 | Christmas tree displacement monitoring device |
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| Publication Number | Publication Date |
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| CN111397478A true CN111397478A (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010225775.4A Pending CN111397478A (en) | 2020-03-26 | 2020-03-26 | Christmas tree displacement monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819884A (en) * | 2021-09-24 | 2021-12-21 | 中海石油(中国)有限公司 | Vertical displacement monitoring system and method for submarine oil production caisson device |
-
2020
- 2020-03-26 CN CN202010225775.4A patent/CN111397478A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819884A (en) * | 2021-09-24 | 2021-12-21 | 中海石油(中国)有限公司 | Vertical displacement monitoring system and method for submarine oil production caisson device |
| CN113819884B (en) * | 2021-09-24 | 2023-11-21 | 中海石油(中国)有限公司 | Vertical displacement monitoring system and method for submarine oil extraction caisson device |
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