Novel ultra-wide-angle visual logging instrument

Abstract

The utility model relates to the technical field of oil well logging, and discloses a novel ultra-wide-angle visual well logging instrument which comprises an instrument shell and is characterized in that an instrument upper connector is installed at the left end in the instrument shell, a transition connector is installed on the right side in the instrument shell, and an instrument lower connector is installed at the right side in the instrument shell. LED pressure-bearing glass is embedded in the right end of the outer wall of the instrument shell in a sealed mode, cambered surface pressure-bearing glass is embedded in the right end of the interior of the instrument shell in a sealed mode, a wide-angle camera is installed at the right end of the interior of the instrument shell, and the camera shooting end of the wide-angle camera is located in the cambered surface pressure-bearing glass. According to the utility model, the cambered-surface pressure-bearing glass is matched with the ultra-wide-angle camera, so that imaging shooting at an angle exceeding 180 degrees can be realized, a larger angle and a larger range of a casing can be observed, and the requirement on underground water quality is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum well logging, and more specifically to a novel ultra-wide-angle visual well logging instrument. Background Art

[0002] Visual logging technology uses downhole cameras to directly capture video images of the wellbore. It includes visible light downhole television, shortwave infrared downhole television, and X-ray scattering imaging downhole television. These technologies provide intuitive downhole images, including information such as damage type, location, and size, thus providing strong support for safe and stable production in oil and gas fields.

[0003] Current visualization logging instruments are limited by pressure-bearing glass. Pressure-bearing glass is usually flat, and the observation distance between the lens of the visualization logging instrument and the well wall is relatively far, so the angle and range of the lens that can observe the inner wall of the casing through the pressure-bearing glass are relatively small. In addition, due to the small observation range of the lens, it is easy to observe unclearly. Therefore, the water quality requirements are very high and need to be improved. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a novel ultra-wide-angle visual logging instrument to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a novel ultra-wide-angle visual logging instrument, comprising an instrument housing, characterized in that an instrument upper joint is installed at the left end of the interior of the instrument housing, a transition joint is installed at the right side of the interior of the instrument housing, the right end of the outer wall of the instrument housing is sealed and inlaid with LED pressure-bearing glass, the right end of the interior of the instrument housing is sealed and inlaid with curved pressure-bearing glass, a wide-angle camera is installed at the right end of the interior of the instrument housing, and the camera end of the wide-angle camera is located inside the curved pressure-bearing glass.

[0006] Furthermore, the instrument housing and the upper connector of the instrument are sealed and connected via a No. 1 thread and a No. 1 sealing rubber ring.

[0007] Furthermore, the instrument housing and the transition joint are sealed by a No. 2 thread and a No. 2 sealing rubber ring.

[0008] Furthermore, a plug is installed at the right end of the upper connector of the instrument, and the wide-angle camera is connected to the plug of the upper connector of the instrument via a No. 2 signal wire.

[0009] Furthermore, a No. 3 sealing rubber ring is provided between the curved pressure-bearing glass and the instrument housing.

[0010] Furthermore, the left end of the upper connector of the instrument is connected to a well logging receiving end instrument via a No. 1 signal wire.

[0011] The technical effects and advantages of this utility model are:

[0012] 1. This utility model uses curved pressure-bearing glass in conjunction with an ultra-wide-angle camera to achieve imaging at an angle exceeding 180°, enabling observation of a wider angle and range of casing, and reducing requirements for downhole water quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] The accompanying drawings are marked as follows: 1. Instrument upper joint; 2. Instrument housing; 3. Transition joint; 4. LED pressure-bearing glass; 5. Wide-angle camera; 6. Curved pressure-bearing glass. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The novel ultra-wide-angle visual logging instrument involved in the present invention is not limited to the various structures described in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work fall within the scope of protection of the present invention.

[0016] Example 1:

[0017] like Figure 1 As shown, a new ultra-wide-angle visual logging instrument includes an instrument housing 2, an instrument upper connector 1 is installed at the left end of the interior of the instrument housing 2, a transition connector 3 is installed at the right side of the interior of the instrument housing 2, the right end of the outer wall of the instrument housing 2 is sealed and inlaid with LED pressure-bearing glass 4, the right end of the interior of the instrument housing 2 is sealed and inlaid with curved pressure-bearing glass 6, a wide-angle camera 5 is installed at the right end of the interior of the instrument housing 2, the camera end of the wide-angle camera 5 is located inside the curved pressure-bearing glass 6, a plug is installed at the right end of the instrument upper connector 1, the wide-angle camera 5 is connected to the plug of the instrument upper connector 1 through a No. 2 signal wire, and the left end of the instrument upper connector 1 is connected to the logging receiving end instrument through a No. 1 signal wire.

[0018] In this embodiment, since the camera end of the wide-angle camera 5 is located inside the curved pressure-bearing glass 6, the camera end of the wide-angle camera 5 can be used to perform 180° imaging through the curved pressure-bearing glass 6, which can observe a larger angle and range of the casing. At the same time, the image captured by the wide-angle camera 5 can be transmitted to the logging receiving end instrument, which is convenient for providing the staff with an intuitive picture of the well.

[0019] Example 2:

[0020] like Figure 1As shown, the instrument housing 2 and the instrument upper joint 1 are sealed by a No. 1 thread and a No. 1 sealing rubber ring, the instrument housing 2 and the transition joint 3 are sealed by a No. 2 thread and a No. 2 sealing rubber ring, and a No. 3 sealing rubber ring is provided between the curved pressure-bearing glass 6 and the instrument housing 2.

[0021] In this embodiment, the material of the instrument housing 2 is titanium alloy, and the material of the curved pressure-bearing glass 6 is sapphire. The instrument upper joint 1, transition joint 3, LED pressure-bearing glass 4, and curved pressure-bearing glass 6 are all sealedly connected to the instrument housing 2. Therefore, this ultra-wide-angle visual logging instrument has good sealing performance.

[0022] In summary, if Figure 1 As shown, this is a new type of ultra-wide-angle visual logging instrument. When the ultra-wide-angle visual logging instrument is lowered into the well to obtain video images, the camera end of the wide-angle camera 5 is used to perform 180° imaging through the curved pressure-bearing glass 6, which can observe a larger angle and range of the casing, and the image taken by the wide-angle camera 5 is transmitted to the logging receiving end instrument through the No. 2 signal wire, the instrument upper connector 1 and the No. 1 signal wire, so as to provide the staff with an intuitive picture of the well, and the instrument upper connector 1, the transition joint 3, the LED pressure-bearing glass 4, the curved pressure-bearing glass 6 are all sealed with the instrument housing 2, so this ultra-wide-angle visual logging instrument has good sealing performance.

[0023] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0024] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0025] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel ultra-wide-angle visual logging instrument, comprising an instrument housing (2), characterized in that: An instrument upper connector (1) is installed at the left end of the interior of the instrument housing (2), a transition connector (3) is installed at the right side of the interior of the instrument housing (2), an LED pressure-bearing glass (4) is sealed and inlaid at the right end of the outer wall of the instrument housing (2), a curved pressure-bearing glass (6) is sealed and inlaid at the right end of the interior of the instrument housing (2), a wide-angle camera (5) is installed at the right end of the interior of the instrument housing (2), and a camera end of the wide-angle camera (5) is located inside the curved pressure-bearing glass (6).

2. The novel ultra-wide-angle visual logging instrument according to claim 1, characterized in that: The instrument housing (2) and the upper connector (1) of the instrument are sealed and connected via a No. 1 thread and a No. 1 sealing rubber ring.

3. The novel ultra-wide-angle visual logging instrument according to claim 1, characterized in that: The instrument housing (2) and the transition joint (3) are sealed and connected via a No. 2 thread and a No. 2 sealing rubber ring.

4. The novel ultra-wide-angle visual logging instrument according to claim 1, characterized in that: A plug is installed at the right end of the upper connector (1) of the instrument, and the wide-angle camera (5) is connected to the plug of the upper connector (1) of the instrument via a No. 2 signal wire.

5. The novel ultra-wide-angle visual logging instrument according to claim 1, characterized in that: A No. 3 sealing rubber ring is provided between the arc-surface pressure-bearing glass (6) and the instrument housing (2).

6. The novel ultra-wide-angle visual logging instrument according to claim 1, characterized in that: The left end of the instrument upper connector (1) is connected to a well logging receiving end instrument via a No. 1 signal wire.

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