阅读说明：本技术 一种井口作业可视化装置及方法 (Wellhead operation visualization device and method ) 是由 唐诗国 喻成刚 许定江 覃芳 缪云 杨海 杨永韬 罗伟 李辰 于 2019-10-12 设计创作，主要内容包括：本发明提供了一种井口作业可视化装置,解决了现有技术中进行打捞作业时,可能发生将仍处在采气树内的落鱼剪断,部分落鱼再次掉入井底的情况发生,从而造成严重的井下事故的技术问题。它包括井口摄像装置,所述井口摄像装置至少包括安装座、摄像机构和触控屏；所述安装座具有从一端贯穿到另一端的中空通道；且在所述安装座的两端分别设有上部接头以及下部接头；所述摄像机构活动安装在安装座内。本发明在不影响正常的井口作业操作的情况下,能够直接帮助现场作业人员判断工具串是否通过采气树等井口装置,从而完全避免关闭错误的井口阀门导致剪断落鱼的情况发生,避免此类井下事故的发生。(The invention provides a wellhead operation visualization device, which solves the technical problem that serious underground accidents are caused by the fact that fish still in a gas production tree is cut off and part of the fish falls into the bottom of a well again when salvage operation is carried out in the prior art. The wellhead camera shooting device at least comprises a mounting seat, a camera shooting mechanism and a touch screen; the mounting seat is provided with a hollow channel penetrating from one end to the other end; an upper joint and a lower joint are respectively arranged at two ends of the mounting seat; the camera shooting mechanism is movably arranged in the mounting seat. The invention can directly help field operators to judge whether the tool string passes through wellhead devices such as gas production trees and the like under the condition of not influencing normal wellhead operation, thereby completely avoiding the condition of cutting fish caused by closing wrong wellhead valves and avoiding the occurrence of underground accidents.)

1. The utility model provides a visual device of wellhead operation which characterized in that: the device comprises a wellhead camera device arranged above a wellhead, wherein the wellhead camera device at least comprises a mounting seat, a camera mechanism and a touch screen;

the mounting seat is provided with a hollow channel penetrating from one end to the other end; the two ends of the mounting seat are respectively provided with an upper joint used for being connected with an operation device during wellhead operation and a lower joint used for being connected with a wellhead device arranged on a wellhead;

the camera mechanism is movably arranged in the mounting seat and at least comprises a camera, the camera extends into the hollow channel, the position of the camera corresponds to the position of a well head, and a transparent pressure-resistant protective cover is sleeved on the outer side of the camera;

the touch screen is arranged on the outer wall of the mounting seat; the camera shooting mechanism is electrically connected with the touch screen;

the camera of the camera shooting mechanism can shoot real-time pictures in the pipe column at the wellhead position through the pressure-resistant protective cover and send shot detection signals to the touch screen, and the touch screen can obtain the real-time pictures in the pipe column according to the detection signals and display the pictures on the touch screen;

when carrying out the well head operation, the instrument of well head operation can pass the hollow channel of mount pad and stretch into the well head and carry out the operation, and the instrument of well head operation can not contact with the mechanism of making a video recording.

2. A wellhead operation visualization device as claimed in claim 1, wherein: the wellhead camera device also comprises a distance measuring and positioning mechanism and a storage and data transmission device; the distance measuring and positioning mechanism and the storage and data transmission device are respectively electrically connected with the touch screen;

the distance measuring and positioning mechanism and the storage and data transmission device are movably arranged on the mounting seat; when the wellhead operation is carried out, the tool for wellhead operation cannot contact with the ranging positioning mechanism and the storage and data transmission device;

the distance measurement positioning mechanism can detect the position and the length of an underground target object and send a detection signal to the touch screen, and the touch screen can obtain the position and the length of the target object according to the detection signal and display the position and the length on the touch screen;

the touch screen can send detection signals to the storage and data transmission device after receiving the detection signals sent by the camera shooting mechanism and the distance measuring and positioning mechanism; the storage and data transmission device can record pictures and data and transmit the pictures and the data in real time.

3. A wellhead operation visualization device as claimed in claim 2, wherein: the distance measuring and positioning mechanism is an ultrasonic distance measuring sensor, a laser distance measuring sensor, an infrared distance measuring sensor or a microwave radar distance measuring sensor.

4. A wellhead operation visualization device as claimed in claim 3, wherein: the storage and data transmission device comprises an SD card for recording pictures and data and a WIFI module for transmitting the pictures and the data in real time, and the WIFI module can directly transmit the pictures and the data to the on-duty room and the operation room host through a wireless network.

5. A wellhead operation visualization device as claimed in claim 4, wherein: the camera is a zoom camera.

6. A wellhead operation visualization device as claimed in claim 5, wherein: the camera shooting mechanism further comprises a circle of electronic flash lamps surrounding the zoom camera, and each electronic flash lamp is electrically connected with the touch screen.

7. A wellhead operation visualization device as claimed in claims 2-6, characterized in that: the device further comprises a battery pack used for supplying power to the camera shooting mechanism, the distance measuring and positioning mechanism and the storage and data transmission device, and the battery pack is movably mounted on the mounting seat.

8. A wellhead operation visualization device as claimed in claim 7, wherein: when steel wire operation is carried out, the upper joint is a connecting pipe with an external thread at the end part; the lower joint is a connecting flange.

9. A method for visualization of wellhead operations is characterized in that: use of the apparatus according to any of claims 2-8 for wellhead operations.

10. A method of wellhead operation visualization as claimed in claim 9 wherein: the method comprises the following steps:

(1) installing the apparatus of any one of claims 2-8 above a wellhead via an upper sub and a lower sub; then, the operation is normally carried out, and the tool string is lifted in place after the operation is finished;

(2) opening and adjusting a wellhead camera device to ensure that the picture is clear and bright;

(3) judging the position of a target object under the wellhead according to the picture obtained by the camera device so as to judge whether the wellhead camera device can be closed and the operation equipment can be dismantled or a distance measuring and positioning mechanism needs to be started to judge the next operation procedure;

when the distance measuring and positioning mechanism needs to be started to judge the next operation procedure, data and pictures obtained through the distance measuring and positioning mechanism and the camera device are stored and transmitted to relevant technicians in real time for judgment; the related technical personnel judge the next operation procedure according to the data and the picture until the related technical personnel judge that the wellhead camera shooting device can be closed and the operation equipment can be dismantled according to the data and the picture transmitted in real time;

and when the judgment shows that the wellhead camera device can be closed and the operation equipment can be removed, the wellhead camera device can be closed and the operation equipment can be removed.

Technical Field

The invention relates to the field of oil and natural gas well workover engineering, in particular to a well head operation visualization device and a well head operation visualization method.

Background

In the whole process of oil and gas exploitation, downhole operations such as well repair, well logging, salvaging and the like are generally required. The working procedures of well repair, well logging, salvaging and the like are all operated by installing corresponding equipment on wellhead devices such as gas production trees and the like, generally mainly perform steel wire operation, and also comprise cable operation, snubbing operation (under-pressure operation), coiled tubing operation and the like. The equipment for installing the steel wire on the gas production tree in the operation comprises a blowout prevention pipe, a blowout preventer and the like, and is connected with the gas production tree with the oil pressure gauge flange removed through a conversion flange. After the steel wire operation is finished, the whole tool string is lifted into the blowout prevention pipe, but the condition that the underground foreign bodies are hooked is not eliminated at the lowest end of the tool string; the length and shape of the fish which is fished by the fishing operation can not be completely and accurately judged sometimes. In this case, if the valve 7 of the gas production tree is closed by accident, it may happen that the fish still in the gas production tree is cut off and part of the fish falls down into the well bottom again, thereby causing a serious downhole accident.

The above problems are not solved by the related invention and apparatus. The field operator can usually judge the above situation only by experience, mainly predicting the length of the fish and analyzing the change of the lifting force. However, these empirical means are not necessarily accurate and there is still a risk of shearing fish after closing the wellhead valve, which may cause serious downhole accidents.

In order to thoroughly solve the problem, provide accurate judgment basis for wellhead operation personnel and ensure the safety of wellhead operation, particularly salvage operation, a wellhead operation visualization device and a wellhead operation visualization method need to be developed.

The applicant has found that the prior art has at least the following technical problems:

1. when fishing operation is carried out in the prior art, the condition that fish still in a gas production tree is cut off and part of the fish falls into the bottom of a well again can occur, so that serious underground accidents are caused;

2. after the steel wire operation among the prior art is accomplished, whole tool string will lift to in the lubricator, but the condition of hooking up foreign matter in the pit probably appears in the tool string lowermost extreme.

Disclosure of Invention

The invention aims to provide a wellhead operation visualization device to solve the technical problem that serious underground accidents are caused by the fact that fish still in a gas production tree are cut off and part of the fish falls into the bottom of a well again when salvage operation is carried out in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a wellhead operation visualization device which comprises a wellhead camera device arranged above a wellhead, wherein the wellhead camera device at least comprises a mounting seat, a camera shooting mechanism and a touch screen;

the mounting seat is provided with a hollow channel penetrating from one end to the other end; the two ends of the mounting seat are respectively provided with an upper joint used for being connected with an operation device during wellhead operation and a lower joint used for being connected with a wellhead device arranged on a wellhead;

the camera mechanism is movably arranged in the mounting seat and at least comprises a camera, the camera extends into the hollow channel, the position of the camera corresponds to the position of a well head, and a transparent pressure-resistant protective cover is sleeved on the outer side of the camera;

the touch screen is arranged on the outer wall of the mounting seat; the camera shooting mechanism is electrically connected with the touch screen;

the camera of the camera shooting mechanism can shoot real-time pictures in the pipe column at the wellhead position through the pressure-resistant protective cover and send shot detection signals to the touch screen, and the touch screen can obtain the real-time pictures in the pipe column according to the detection signals and display the pictures on the touch screen;

when carrying out the well head operation, the instrument of well head operation can pass the hollow channel of mount pad and stretch into the well head and carry out the operation, and the instrument of well head operation can not contact with the mechanism of making a video recording.

Optionally or preferably, the wellhead camera device further comprises a distance measuring and positioning mechanism and a storage and data transmission device; the distance measuring and positioning mechanism and the storage and data transmission device are respectively electrically connected with the touch screen;

the distance measuring and positioning mechanism and the storage and data transmission device are movably arranged on the mounting seat; when the wellhead operation is carried out, the tool for wellhead operation cannot contact with the ranging positioning mechanism and the storage and data transmission device;

the distance measurement positioning mechanism can detect the position and the length of an underground target object and send a detection signal to the touch screen, and the touch screen can obtain the position and the length of the target object according to the detection signal and display the position and the length on the touch screen;

the touch screen can send detection signals to the storage and data transmission device after receiving the detection signals sent by the camera shooting mechanism and the distance measuring and positioning mechanism; the storage and data transmission device can record pictures and data and transmit the pictures and the data in real time.

Optionally or preferably, the distance measuring and positioning mechanism is an ultrasonic distance measuring sensor, a laser distance measuring sensor, an infrared distance measuring sensor or a microwave radar distance measuring sensor.

Optionally or preferably, the storage and data transmission device includes an SD card for recording pictures and data, and a WIFI module for real-time transmission of the pictures and data, and the WIFI module can directly transmit the pictures and data to the on-duty room and the operating room host via a wireless network.

Optionally or preferably, the camera is a zoom camera.

Optionally or preferably, the camera mechanism further includes a ring of electronic flash lamps disposed around the zoom camera, and each electronic flash lamp is electrically connected to the touch screen.

Optionally or preferably, the device further comprises a battery pack for supplying power to the camera mechanism, the distance measuring and positioning mechanism and the storage and data transmission device, wherein the battery pack is movably mounted on the mounting seat.

Alternatively or preferably, when performing a wire operation, the upper joint is a connection pipe having an external thread at an end thereof; the lower joint is a connecting flange.

The invention provides a visualization method for wellhead operation, which applies the device to carry out wellhead operation.

Optionally or preferably, the method comprises the following steps:

(1) installing the device above a wellhead through an upper joint and a lower joint; then, the operation is normally carried out, and the tool string is lifted in place after the operation is finished;

(2) opening and adjusting a wellhead camera device to ensure that the picture is clear and bright;

(3) judging the position of a target object under the wellhead according to the picture obtained by the camera device so as to judge whether the wellhead camera device can be closed and the operation equipment can be dismantled or a distance measuring and positioning mechanism needs to be started to judge the next operation procedure;

when the distance measuring and positioning mechanism needs to be started to judge the next operation procedure, data and pictures obtained through the distance measuring and positioning mechanism and the camera device are stored and transmitted to relevant technicians in real time for judgment; the related technical personnel judge the next operation procedure according to the data and the picture until the related technical personnel judge that the wellhead camera shooting device can be closed and the operation equipment can be dismantled according to the data and the picture transmitted in real time;

and when the judgment shows that the wellhead camera device can be closed and the operation equipment can be removed, the wellhead camera device can be closed and the operation equipment can be removed.

Based on the technical scheme, the embodiment of the invention can at least produce the following technical effects:

(1) according to the well head operation visualization device provided by the invention, the lower connector and the upper connector are arranged, the well head camera device can be directly connected in series in the traditional steel wire operation, cable operation, snubbing operation and coiled tubing operation devices, a well head operation tool can penetrate through the hollow channel of the mounting seat and extend into the well head for operation, and normal well head operation is not influenced completely; when the well head device is used for operation, field operation personnel can be directly helped to judge whether the tool string passes through well head devices such as a gas production tree, so that the situation that fish falls are cut off due to the fact that a wrong well head valve is closed is completely avoided, and the underground accidents are avoided.

(2) The wellhead operation visualization method provided by the invention adopts the wellhead operation visualization device; under the condition that normal well head operation is not influenced, the on-site operation personnel can be directly helped to judge whether the tool string passes through well head devices such as a gas production tree, so that the condition that fish is cut off due to the fact that a wrong well head valve is closed is completely avoided, and the underground accidents are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of another embodiment 1 of the present invention;

FIG. 3 is a side view of embodiment 1 of the present invention;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a bottom view of FIG. 3;

FIG. 6 is a cross-sectional view B-B of FIG. 5;

FIG. 7 is a schematic view of the use states of embodiment 1 and embodiment 2 of the present invention;

fig. 8 is a flow chart of the use of the embodiment 1 and the embodiment 2 of the present invention.

In the figure: 1. a mounting seat; 2, a camera shooting mechanism; 201. a zoom camera; 202. an electronic flash lamp; 3. a touch screen; 4. A hollow channel; 5. an upper joint; 6. a lower joint; 7. a compression-resistant protective cover; 8. a distance measuring and positioning mechanism; 9. a storage and data transmission device; 901. a WIFI module; 902. an SD card; 10. a battery pack; 11. a blowout preventer; 12. a wellhead camera device; 13. a gas production tree tubing head; 14. valve No. 7 of gas production tree; 15. valve No. 4 of gas production tree; 16. gas production tree number 1 valve; 17. a first cover body; 18. a second cover body; 19. a third cover body; 20. a rear cover; 21. And a through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

As shown in fig. 1-8: