Wellhead measuring device and system

Abstract

The invention discloses a wellhead measuring device and system, and belongs to the technical field of oil and gas exploitation. The device comprises a connecting piece and a measuring device, one end of the connecting piece is connected with a flange piece of the gas production tree, the other end of the connecting piece is connected with the measuring device, and the measuring device is located on the ground on one side of the gas production tree; wherein the extending direction of the connecting piece is parallel to the direction of the center line of the gas production tree. According to the device, uninterrupted measurement of wellhead displacement data can be achieved, and data support is provided for deep research on a wellhead lifting mechanism and wellhead lifting prevention and control measures.

Description

Technical Field

[0001] The present application relates to the technical field of oil and gas extraction, and in particular to a wellhead measurement device and system. Background Art

[0002] The strong injection and production operation mode of the gas storage injection and production wells will cause drastic changes in pressure and temperature in the wellbore, causing the wellhead to rise, increasing the risk of toxic gas leakage from the gas storage injection and production wells.

[0003] In the related art, during the operation of injection and production wells in a gas storage reservoir, workers usually tie ropes at both ends of the wellhead cofferdam and measure the wellhead lifting data by manually and regularly checking the changes in the intersection position of the rope and the gas production tree at the wellhead.

[0004] However, this measurement method can only measure the wellhead uplift data at a fixed time point, and cannot measure the wellhead uplift data uninterruptedly, so it is impossible to obtain the dynamic change process of the data, and thus cannot provide complete data support for in-depth research on the wellhead uplift mechanism and wellhead uplift prevention and control measures. Summary of the invention

[0005] In view of this, the present application provides a wellhead measurement device and system, which can realize uninterrupted measurement of wellhead displacement data, and provide data support for in-depth research on the wellhead uplift mechanism and wellhead uplift prevention and control measures.

[0006] Specifically, the following technical solutions are included:

[0007] On the one hand, an embodiment of the present application provides a wellhead measurement device, the device comprising: a connecting piece and a measuring device;

[0008] One end of the connecting piece is connected to the flange of the gas tree, and the other end is connected to the measuring device, and the measuring device is located on the ground at one side of the gas tree;

[0009] Wherein, the extending direction of the connecting piece is parallel to the center line direction of the gas tree.

[0010] In some embodiments, the connecting member includes a fixing member and a connecting line;

[0011] The fixing member is fixed on the flange;

[0012] One end of the connecting line is connected to the fixing member, and the other end is connected to the measuring device, and the extending direction of the connecting line is parallel to the center line of the gas tree.

[0013] In some embodiments, the fixing member includes a binding wire and a pull ring;

[0014] The binding wire is fixed on the flange;

[0015] The pull ring is sleeved on the binding wire and is located at a side of the flange close to the ground.

[0016] In some embodiments, the binding wire, the pull ring and the connecting wire are all made of stainless steel.

[0017] In some embodiments, the measuring device includes a body, a displacement measurer, and a processor;

[0018] The displacement measuring device is located on the first side of the body close to the flange and is connected to the connecting line;

[0019] The processor is located inside the body and connected to the displacement measuring device.

[0020] In some embodiments, the measuring device further comprises a display screen;

[0021] The display screen is located on a second side of the body and is connected to the processor, wherein the second side is adjacent to the first side.

[0022] In some embodiments, the apparatus further comprises a data transmission mechanism;

[0023] The data transmission mechanism is connected to the measuring device, and the data transmission mechanism is located at one side of the gas tree.

[0024] In some embodiments, the data transmission mechanism includes a control cabinet;

[0025] The control cabinet is connected to the measuring device via a data line;

[0026] The control cabinet has a long-distance transmission component inside, and the long-distance transmission component is used for long-distance transmission of data.

[0027] On the other hand, an embodiment of the present application further provides a wellhead measurement system, the system comprising a gas tree and the wellhead measurement device as described in the above aspects;

[0028] The wellhead measurement device is located on one side of the gas tree.

[0029] In some embodiments, the flange is located on one side of the gas production tree, and the height difference between the flange and the ground is in the range of 1 to 2 meters.

[0030] The beneficial effects of the technical solution provided by the embodiments of the present application include at least:

[0031] The measuring device is connected to the gas tree by connecting one end of the connecting piece to the flange of the gas tree and the other end to the measuring device on the ground at one side of the gas tree. Since the extending direction of the connecting piece is parallel to the center line of the gas tree, that is, the connecting piece always remains perpendicular to the ground, when the wellhead is lifted or falls back after being lifted, the gas tree drives the connecting piece to move vertically, and the measuring device measures the movement data of the connecting piece in real time, thereby realizing uninterrupted measurement of the wellhead displacement data. The staff can understand the dynamic change process of the wellhead displacement data through the data measured by the measuring device, thereby providing data support for in-depth research on the wellhead lifting mechanism and wellhead lifting prevention and control measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A schematic diagram of the structure of a wellhead measurement device provided in an embodiment of the present application in an application scenario;

[0034] Figure 2 A schematic diagram of the structure of a connector provided in an embodiment of the present application in an application scenario;

[0035] Figure 3 A schematic diagram of the structure of a fixing member provided in an embodiment of the present application in an application scenario;

[0036] Figure 4 A schematic diagram of the structure of a measuring device provided in an embodiment of the present application;

[0037] Figure 5 A schematic diagram of the structure of another wellhead measurement device provided in an embodiment of the present application in an application scenario;

[0038] Figure 6 A schematic diagram of the structure of a data transmission mechanism in an application scenario provided in an embodiment of the present application;

[0039] Figure 7 A schematic diagram of the structure of a wellhead measurement system provided in an embodiment of the present application.

[0040] The reference numerals in the figures represent respectively:

[0041] 1-Connector,

[0042] 11-Fixer,

[0043] 111-Binding wire,

[0044] 112-Pull ring,

[0045] 12-Connection wire,

[0046] 2- Measuring device,

[0047] 21-Ontology,

[0048] 211- First side,

[0049] 212- Second side,

[0050] 22-Displacement measuring device,

[0051] 23- Processor,

[0052] 24-display screen,

[0053] 3- Data transmission agency,

[0054] 31-Control cabinet,

[0055] 311-Long distance transmission parts,

[0056] 32-data line,

[0057] 33-Wellhead pressure measuring valve,

[0058] 34-Data display instrument,

[0059] 4-Gas tree,

[0060] 41-Flange.

[0061] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0063] In the description of the embodiments of the present application, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0064] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as those generally understood by those of ordinary skill in the art. Some technical terms appearing in the embodiments of the present application are explained below.

[0065] In the embodiments of the present application, the "cofferdam" referred to generally refers to a wall-like guardrail structure built around the gas tree at the wellhead;

[0066] The "gas tree small four-way" involved generally refers to a cross-shaped tubular structure located on the gas tree and with flow inside;

[0067] In order to make the technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0068] In the process of oil extraction, water injection is needed to increase the pressure of oil and gas resources in the oilfield gas storage reservoir to ensure that the oil and gas resources are further extracted. Whether the injection and production wells of the gas storage reservoir can ensure safe operation is not only related to the normal performance of the injection and production operations, but also to the personal safety and living environment of the staff around the gas storage reservoir and the residents of nearby cities. The strong injection and strong production characteristics of the gas storage reservoir during injection and production operations can easily cause drastic changes in the pressure and temperature in the wellbore, which in turn causes the wellhead to rise, which can easily lead to the leakage of toxic acidic gases in the well, affecting the personal safety and living environment of the staff around the gas storage reservoir and the residents of nearby cities.

[0069] In the related art, during the operation of the injection and production wells of the gas storage reservoir, the staff usually tie ropes at both ends of the wellhead cofferdam and manually regularly check the changes in the intersection position of the rope and the gas production tree at the wellhead to achieve the measurement of the wellhead lifting data.

[0070] However, since this measurement method is through manual periodic measurement, it can only obtain the wellhead uplift data at a fixed time point, and it is impossible to measure the wellhead uplift data uninterruptedly, so it is impossible to obtain the dynamic change process of the wellhead uplift data, and thus it is impossible to provide complete data support for in-depth research on the wellhead uplift mechanism and wellhead uplift prevention and control measures.

[0071] In order to solve the technical problems existing in the related technology, the embodiment of the present application provides a wellhead measurement device, which can realize uninterrupted measurement of wellhead displacement data, and provide data support for in-depth research on the wellhead lifting mechanism and wellhead lifting prevention and control measures.

[0072] Figure 1 This is a schematic diagram of the structure of a wellhead measurement device provided in an embodiment of the present application in an application scenario. Figure 1 The wellhead measuring device comprises: a connecting part 1 and a measuring device 2.

[0073] One end of the connector 1 is connected to the flange 41 of the gas tree 4, and the other end is connected to the measuring device 2. The measuring device 2 is located on the ground on one side of the gas tree 4. The extending direction of the connector 1 is parallel to the center line direction of the gas tree 4.

[0074] Since the two ends of the connector 1 are respectively connected to the flange 41 on the gas tree 4 and the measuring device 2, when the gas tree 4 moves with the wellhead lifting or falling back after lifting, the connector 1 also moves synchronously with the gas tree 4, and the wellhead displacement data of the whole process of synchronous movement can be measured and obtained by the measuring device 2. Among them, the wellhead displacement data includes wellhead lifting data and wellhead falling data.

[0075] Therefore, the wellhead measuring device provided in the embodiment of the present application connects one end of the connector 1 to the flange 41 of the gas tree 4 and connects the other end of the connector 1 to the measuring device 2, so that the measuring device 2 is connected to the gas tree 4; at the same time, the extension direction of the connector 1 is parallel to the centerline direction of the gas tree 4, that is, the connector 1 always remains perpendicular to the ground, which enables the connector 1 to move vertically synchronously with the gas tree 4 as the gas tree 4 at the wellhead rises or falls after rising, and the measuring device 2 measures the displacement data of the connector 1 in real time and continuously through the connection with the other end of the connector 1, ensuring that the measuring device 2 can continuously measure the wellhead displacement data of the entire dynamic process of the wellhead rising or falling after rising, so that the staff can understand the entire dynamic change process of the wellhead position through the data measured by the measuring device 2, ensuring the continuity of the measurement data, and providing data support for in-depth research on the wellhead lifting mechanism and wellhead lifting prevention and control measures.

[0076] In addition, the wellhead measurement device provided in the embodiment of the present application takes into account both mechanical and electronic measurement methods, is not affected by environmental interference, has strong stability, greatly optimizes the measurement method, and reduces manual operation costs.

[0077] The structure of the wellhead measurement device provided in the embodiment of the present application is further described below:

[0078] Figure 2 This is a schematic diagram of the structure of a connector provided in an embodiment of the present application in an application scenario. Figure 2 In some embodiments, the connecting member 1 includes a fixing member 11 and a connecting line 12 .

[0079] The fixing member 11 is fixed on the flange 41 ; one end of the connecting line 12 is connected to the fixing member 11 , and the other end is connected to the measuring device 2 , and the extending direction of the connecting line 12 is parallel to the center line of the gas tree 4 .

[0080] By fixing the fixing part 11 on the flange 41, one end of the connecting line 12 is connected to the fixing part 11, so that the connecting line 12 can move synchronously with the lifting of the flange 41 or the fall after lifting; by connecting the other end of the connecting line 12 to the measuring device 2, and the extension direction of the connecting line 12 is parallel to the center line of the gas tree 4, the measuring device 2 can measure the entire dynamic displacement process of the connecting line 12 as the flange 41 is lifted or fell after lifting.

[0081] In some embodiments, the upper limit of the height of the gas tree 4 when it is lifted along the wellhead is 2 meters, and the length of the connecting line 12 ranges from 0 to 2 meters.

[0082] In the related technology, the staff uses ropes tied at both ends of the wellhead cofferdam, and measures the wellhead lifting data by manually checking the changes in the intersection position of the rope and the gas tree at the wellhead regularly. On the one hand, this measurement method requires the rope to be in direct contact with the gas tree, which will cause the rope to be easily stretched and deformed due to changes in the wellhead temperature; on the other hand, if the rope is too long, since the distance between the two ends of the wellhead cofferdam is usually 3 to 6 meters, the length of the rope tied at both ends of the cofferdam is also in the range of 3 to 6 meters, and the fluctuation error caused by the influence of wind force is large. These two factors can easily lead to the low accuracy of the results obtained by the related technology. However, see Figure 1 and Figure 2The wellhead measuring device provided in the embodiment of the present application, on the one hand, by fixing the fixing member 11 on the flange 41, one end of the connecting line 12 is connected to the fixing member 11, and the other end is connected to the measuring device 2, which can avoid direct contact between the connecting line 12 and the gas tree 4, and prevent the wellhead temperature change from causing the connecting line 12 to expand and contract. On the other hand, the length of the connecting line 12 is much shorter than that of the prior art. Considering the height of the wellhead lifting and the phenomenon of falling back after lifting, the length of the connecting line 12 varies from 0 to 2 meters, and the fluctuation error caused by the influence of wind is extremely small. Therefore, the wellhead measuring device provided in the embodiment of the present application can greatly improve the accuracy of the measured wellhead displacement data.

[0083] Figure 3 This is a schematic diagram of the structure of a fixing member provided in an embodiment of the present application in an application scenario. Figure 3 In some embodiments, the fixing member 11 includes a binding wire 111 and a pull ring 112 .

[0084] The binding wire 111 is fixed on the flange 41 ; the pull ring 112 is sleeved on the binding wire 111 and is located on a side of the flange 41 close to the ground.

[0085] By fixing the binding wire 111 on the flange 41 and sleeved on the pull ring 112, the pull ring 112 is connected to the flange 41; by setting the pull ring 112 on the side of the flange 41 close to the ground, it is ensured that the extension direction of the connecting wire 12 connected to the pull ring 112 can be parallel to the center line direction of the gas tree 4.

[0086] In addition, the pull ring 112 is fixed to the flange 41 by the binding wire 111, and the pull ring 112 is connected to the connecting wire 12, so that the connecting wire 12 can be displaced synchronously with the lifting of the gas tree 4 or the falling back after lifting; and because the connecting wire 12 is connected to the gas tree 4 and is not in direct contact with the gas tree 4, it is possible to avoid the connecting wire 12 being affected by the temperature change of the gas tree 4 and causing expansion and contraction deformation, thereby improving the accuracy of the measurement result.

[0087] In some embodiments, the materials of the binding wire 111 , the pull ring 112 , and the connecting wire 12 may all be stainless steel to ensure the connection strength.

[0088] For example, the materials of the binding wire 111 , the pull ring 112 and the connecting wire 12 may all be explosion-proof stainless steel.

[0089] It is understandable that the binding wire 111 needs to be wrapped around the flange 41 for at least one turn to ensure that the binding wire 111 is fixed on the flange 41 .

[0090] In some embodiments, the pull ring 112 may be in the shape of a circular ring, and the diameter of the pull ring 112 may be 30 mm.

[0091] Figure 4 This is a schematic diagram of the structure of a measuring device provided in an embodiment of the present application. Figure 4 In some embodiments, the measuring device 2 includes a body 21 , a displacement meter 22 and a processor 23 .

[0092] The displacement meter 22 is located on the first side 211 of the body 21 close to the flange 41 and is connected to the connecting line 12 ; the processor 23 is located inside the body 21 and is connected to the displacement meter 22 .

[0093] By setting the displacement meter 22 on the first side 211 of the main body 21 close to the flange 41 and connecting it to the connecting line 12, the displacement meter 22 can measure the displacement data of the connecting line 12 when it is lifted or falls back after being lifted, that is, the displacement data of the connecting line 12 being lifted synchronously with the flange 41 or falling back after being lifted; the processor 23 is connected to the displacement meter 22, so that the displacement meter 22 can send the measured displacement data of the connecting line 12 to the processor 23, and the processor 23 can receive the displacement data from the displacement meter 22, and process and / or store the displacement data.

[0094] In some embodiments, the connecting line 12 is connected to the measuring device 2 by means of coil winding. The connecting line 12 is lengthened as the gas tree 4 is lifted, and is shortened as the gas tree 4 falls back after being lifted. The displacement measuring device 22 can measure the displacement data of the wellhead lifting and the falling back after lifting by measuring the length of the connecting line 12, thereby obtaining complete dynamic data of the entire process of the wellhead lifting phenomenon.

[0095] In some embodiments, see Figure 4 The measuring device 2 also includes a display screen 24 .

[0096] The display screen 24 is located on the second side 212 of the body 21 and is connected to the processor 23 , wherein the second side 212 is adjacent to the first side 211 .

[0097] By arranging the display screen 24 on the side of the body 21 , the display screen 24 is connected to the processor 23 , so that the staff can directly view and obtain the wellhead displacement data through the display screen 24 .

[0098] In some embodiments, the measuring device 2 may be a draw-wire encoder.

[0099] Figure 5 This is a schematic diagram of the structure of another wellhead measurement device provided in an embodiment of the present application in an application scenario. Figure 5 In some embodiments, the wellhead measurement device also includes a data transmission mechanism 3.

[0100] The data transmission mechanism 3 is connected to the measuring device 2 , and the data transmission mechanism 3 is located at one side of the gas tree 4 .

[0101] By providing the data transmission mechanism 3 connected to the measuring device 2 , the measuring device 2 can transmit the measured displacement data to the data transmission mechanism 3 , and the data transmission mechanism 3 is used for further data transmission.

[0102] Figure 6 This is a structural diagram of a data transmission mechanism 3 provided in an embodiment of the present application in an application scenario, wherein the portion shown by the solid circle is a partial enlarged view of the portion circled by the dotted circle, and the location of the dotted circle is the interior of the data transmission mechanism 3. Figure 6 In some embodiments, the data transmission mechanism 3 includes a control cabinet 31 .

[0103] The control cabinet 31 is connected to the measuring device 2 via a data line 32 ; a long-distance transmission component 311 is provided inside the control cabinet 31 , and the long-distance transmission component 311 is used for long-distance transmission of data.

[0104] The control cabinet 31 is connected to the processor 23 of the measuring device 2 via a data line 32, and can read and store the displacement data stored in the processor 23; the control cabinet 31 is provided with a long-distance transmission component 311, so that after the control cabinet 31 obtains the wellhead displacement data measured by the measuring device 2, the long-distance transmission component 311 can be used to transmit the wellhead displacement data over a long distance, so that the staff who are not at the wellhead measuring device side can remotely view and retrieve the wellhead displacement data multiple times.

[0105] It can be understood that by setting the long-distance transmission component 311 inside the control cabinet 31, the problem of electronic devices being susceptible to environmental interference in the field environment is avoided, and the accuracy of the wellhead displacement data measured by the wellhead measurement device provided in the embodiment of the present application is further improved.

[0106] Optional, see Figure 6 One end of the data line 32 is connected to the measuring device 2, and the other end extends along the wellhead cofferdam to the far end of the cofferdam. After reaching the far end of the wellhead cofferdam, it extends horizontally along the ground until it is connected to the control cabinet 31.

[0107] In some embodiments, see Figure 6 The data transmission mechanism 3 also includes a wellhead pressure measuring valve 33 .

[0108] The wellhead pressure measuring valve 33 is located at a side of the control cabinet 31 close to the gas production tree 4, and the wellhead pressure measuring valve 33 is used to measure the pressure in the wellbore.

[0109] In some embodiments, see Figure 6The data transmission mechanism 3 also includes a data display instrument 34 .

[0110] The data display instrument 34 is located on the surface of the control cabinet 31 , and the data display instrument 34 is used to display the wellhead displacement data acquired by the control cabinet 31 .

[0111] The wellhead displacement data acquired by the control cabinet 31 is displayed through the data display instrument 34 , and the staff can directly view the displacement data of the wellhead lifting or falling back after lifting on the control cabinet 31 .

[0112] In the related art, the wellhead lifting data needs to be recorded by the staff in the field regularly, and remote viewing is not possible, which causes the problem of inconvenience in viewing the wellhead lifting data. The data transmission mechanism 3 included in the wellhead measurement device provided in the embodiment of the present application has the function of remotely transmitting the displacement data read from the measurement device 2, which is convenient for the staff to remotely view, thereby solving the problem of inconvenience in viewing the wellhead lifting data.

[0113] In a possible example, the wellhead measurement device provided in the embodiment of the present application can be operated according to the following steps:

[0114] Fix the binding wire 111 on the flange 41 of the gas tree 4;

[0115] A pull ring 112 is fixed below the binding wire 111;

[0116] Connect the connecting line 12 below the pull ring 112;

[0117] Install a wire encoder vertically below the connecting wire 12 and fix it on the ground;

[0118] The data cable 32 is vertically upward and connected to the control cabinet 31 through the cofferdam;

[0119] The draw-wire encoder is debugged until the value displayed on the display screen 24 of the draw-wire encoder is adjusted to zero.

[0120] An embodiment of the present application also provides a wellhead measurement system. Figure 7 This is a schematic diagram of the structure of a wellhead measurement system provided in an embodiment of the present application. Figure 7 The wellhead measurement system includes a gas production tree 4 and a wellhead measurement device as described in the above embodiment.

[0121] The wellhead measurement device is located on one side of the gas tree 4 .

[0122] It is understandable that when the wellhead is lifted or falls back after being lifted, the gas tree 4 drives the connecting part 1 to move vertically, and the measuring device 2 can display data. At the same time, the data can be transmitted to the remote transmission device through the control cabinet 31 for the staff to view and retrieve.

[0123] Based on the use of the wellhead measurement device involved in the above-mentioned embodiment, the wellhead measurement system provided in the embodiment of the present application can realize uninterrupted measurement of the wellhead displacement data, so that the staff can understand the dynamic change process of the wellhead displacement data through the data measured by the measuring device 2, and provide data support for in-depth research on the wellhead lifting mechanism and wellhead lifting prevention and control measures.

[0124] In some embodiments, the flange 41 is located on one side of the X-ray tree 4, and the height difference between the flange 41 and the ground is in the range of 1 to 2 meters.

[0125] In some embodiments, flange 41 may be any flange on gas tree 4. For example, flange 41 is a flange located at the small four-way of gas tree 4 and is the flange on the small four-way of gas tree 4 that is closest to the wellhead cofferdam.

[0126] It should be noted that the "several" and "at least one" mentioned in this article refer to one or more, and "multiple" and "at least two" refer to two or more. "And / or" describes the association relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0127] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0128] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0129] In the embodiments of the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0130] In the description of this specification, the reference terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the embodiments of the present application.

[0131] The above description is only an embodiment of the embodiments of the present application and is not intended to limit the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A wellhead measurement device, characterized in that: The device comprises: a connecting piece (1) and a measuring device (2); One end of the connecting piece (1) is connected to a flange (41) of a gas tree (4), and the other end is connected to the measuring device (2), and the measuring device (2) is located on the ground at one side of the gas tree (4); Wherein, the extending direction of the connecting piece (1) is parallel to the center line direction of the gas tree (4).

2. The wellhead measurement device according to claim 1, characterized in that: The connecting member (1) comprises a fixing member (11) and a connecting line (12); The fixing member (11) is fixed on the flange (41); One end of the connecting line (12) is connected to the fixing member (11), and the other end is connected to the measuring device (2), and the extending direction of the connecting line (12) is parallel to the center line direction of the gas tree (4).

3. The wellhead measurement device according to claim 2, characterized in that: The fixing member (11) comprises a binding wire (111) and a pull ring (112); The binding wire (111) is fixed on the flange (41); The pull ring (112) is sleeved on the binding wire (111) and is located on a side of the flange (41) close to the ground.

4. The wellhead measurement device according to claim 3, characterized in that: The binding wire (111), the pull ring (112) and the connecting wire (12) are all made of stainless steel.

5. The wellhead measurement device according to claim 2, characterized in that: The measuring device (2) comprises a body (21), a displacement measuring device (22) and a processor (23); The displacement measuring device (22) is located on a first side (211) of the body (21) close to the flange (41) and is connected to the connecting line (12); The processor (23) is located inside the body (21) and is connected to the displacement measuring device (22).

6. The wellhead measurement device according to claim 5, characterized in that: The measuring device (2) further comprises a display screen (24); The display screen (24) is located on the second side (212) of the body (21) and is connected to the processor (23), wherein the second side (212) is adjacent to the first side (211).

7. The wellhead measurement device according to claim 1, characterized in that: The device also includes a data transmission mechanism (3); The data transmission mechanism (3) is connected to the measuring device (2), and the data transmission mechanism (3) is located on one side of the gas tree (4).

8. The wellhead measurement device according to claim 7, characterized in that: The data transmission mechanism (3) comprises a control cabinet (31); The control cabinet (31) is connected to the measuring device (2) via a data line (32); The control cabinet (31) has a long-distance transmission component (311) inside, and the long-distance transmission component (311) is used for long-distance transmission of data.

9. A wellhead measurement system, characterized in that: The system comprises a gas tree (4) and a wellhead measurement device according to any one of claims 1 to 8; The wellhead measurement device is located on one side of the gas tree (4).

10. The wellhead measurement system according to claim 9, characterized in that: The flange (41) is located on one side of the gas production tree (4), and the height difference between the flange (41) and the ground is in the range of 1 to 2 meters.

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