Wellhead rapid detector for storage type well logging

Abstract

The utility model discloses a fast wellhead detector for storage type logging, which comprises a detection component and a butt joint cylinder, the detection component comprises a handle with a cavity and a gland covering the cavity, one end of the handle is fixedly connected with the butt joint cylinder and is provided with a socket component, and the socket component is connected with the butt joint cylinder. A circuit board and a power panel which are electrically connected with the socket assembly, and a light emitting diode electrically connected with the circuit board are arranged in the cavity of the handle, and the power panel supplies power to the circuit board; an anti-rotation key groove and an internal thread are arranged on the inner wall of the butt joint cylinder. The detector disclosed by the utility model is simple in structure and convenient to carry. The device is not provided with a lithium battery, is high in safety, and can be normally used in a gas production well or a drilling platform with well control risks.

Description

Technical Field

[0001] The utility model relates to the field of oil well logging, and specifically to a quick wellhead detector for memory logging in this field. Background Art

[0002] The horizontal well technology can significantly improve the productivity of marginal economic oilfields, reduce the comprehensive cost, and increase the oil production of oil reservoirs. Memory logging is the main technology for current horizontal well logging, including the pump-out logging process and the drill pipe direct-push logging process. In the pump-out logging process, the logging tool string is first connected to a release device and suspended in an instrument protection sleeve. After the protection sleeve containing the memory logging tool string is sent to the target layer through the drill string, it is released and then pumped pressure is applied to pump out the memory logging tool string, and then it is lifted for logging. The drill pipe direct-push logging process is to hang the memory logging tool string under the drill pipe, and push the memory logging tool string into the well by the drill string, and realize logging while pushing. One trip of construction can perform downhole logging and uphole logging respectively. Although the two construction processes are different, they are both memory logging. During the logging process, a battery sub is needed for power supply and a cable cannot be connected, and the logging data cannot be read in real time and the instrument status cannot be detected. Before the memory logging tool goes down the well, it is necessary to configure the instrument at the wellhead and ensure that the final state of the instrument is intact before going down the well. Conventional operations require carrying a laptop computer and ground test equipment to the wellhead to configure the instrument and confirm the final state of the instrument. However, when constructing on some gas-producing wells or drilling platforms with well control risks such as well blowout, it is not allowed to use any equipment with lithium batteries such as mobile phones, computers, and ground test equipment at the wellhead. At this time, the memory logging tool can only be configured below the drilling platform first, and then hoisted to the drilling platform for logging construction. In this way, when the memory logging tool goes down the well, the ground test equipment cannot be used to detect whether its final state is intact, and there is a risk that this logging will not be successful. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a quick wellhead detector for memory logging that does not have a lithium battery and can be normally used on gas-producing wells or drilling platforms with well control risks.

[0004] To solve the above technical problem, the utility model adopts the following technical scheme:

[0005] A quick wellhead detector for memory logging, the improvement lies in: it includes a detection component and a docking cylinder. The detection component includes a handle with a cavity and a gland covering the cavity. One end of the handle is fixedly connected to the docking cylinder, and a socket component is arranged at this end. A circuit board and a power board electrically connected to the socket component are arranged in the cavity of the handle. A light-emitting diode electrically connected to the circuit board, and the power board supplies power to the circuit board; anti-rotation key grooves and internal threads are arranged on the inner wall of the docking cylinder.

[0006] Further, the gland is fixed to the handle by screws, and waterproof glue is applied to the screws and the gaps at the contact surfaces between the gland and the handle.

[0007] Further, the handle is fixedly connected to the docking cylinder by fixing screws, and waterproof glue is applied to the fixing screws.

[0008] Further, a sealing groove is provided at one end of the handle fixedly connected to the docking cylinder. The sealing groove is inserted into the docking cylinder, and a sealing ring is provided in the sealing groove.

[0009] Further, there are two light-emitting diodes, one emitting red light and the other emitting green light.

[0010] Further, the power module on the power supply board provides a 5V DC power supply for the circuit board.

[0011] Further, one end of the anti-rotation key groove on the inner wall of the docking cylinder is adjacent to the socket assembly, and the other end is an internal thread.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The detector disclosed by the present utility model has a simple structure and is convenient to carry. It does not have a lithium battery, has strong safety, and can be normally used in gas-producing wells or drilling platforms with well control risks. The operation is simple. After being docked with the memory logging tool string at the wellhead, it is powered by the battery sub in the memory logging tool string, and the final state of the memory logging tool is judged through the light-emitting diodes. By providing the anti-rotation key groove and the internal thread on the inner wall of the docking cylinder, rapid and reliable docking with the memory logging tool string can be achieved. Through sealing designs such as applying waterproof glue and providing sealing rings, the waterproof and sealing performance is ensured, and it can be normally used in harsh weather such as rain and snow. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the detector disclosed in Embodiment 1 of the present utility model;

[0015] Figure 2 is a schematic internal structure diagram of the detector disclosed in Embodiment 1 of the present utility model;

[0016] Figure 3 is a schematic sectional view of the detector disclosed in Embodiment 1 of the present utility model;

[0017] Figure 4 is a schematic diagram when the detector disclosed in Embodiment 1 of the present utility model is docked with the memory logging tool string.

[0018] Reference numerals:

[0019] 1 - Detector, 2 - Detection component, 3 - Docking cylinder, 4 - Circuit board, 5 - Power supply board, 6 - Handle, 7 - gland, 8 - Socket assembly, 9 - Plug assembly, 10 - Light emitting diode, 11 - Light emitting diode, 12 - Sealing ring, 13 - Fixing screw, 14 - Anti - rotation keyway, 15 - Internal thread, 16 - Anti - rotation key, 17 - Threaded ring, 18 - Memory type logging tool string, 19 - Sealing ring. Specific embodiments

[0020] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the following further describes the present utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] Example 1, as Figure 1 —3 shows, this embodiment discloses a quick detector for the wellhead of memory type logging, including a detection component 2 and a docking cylinder 3. The detection component 2 includes a handle 6 with a cavity and a gland 7 covering the cavity. One end of the handle is fixedly connected to the docking cylinder 3, and a socket assembly 8 is arranged at this end. A circuit board 4 and a power supply board 5 electrically connected to the socket assembly are arranged in the cavity of the handle. Light emitting diodes electrically connected to the circuit board, there are two light emitting diodes. The light emitting diode 10 emits red light, and the light emitting diode 11 emits green light. The power supply board supplies power to the circuit board; An anti - rotation keyway 14 and an internal thread 15 are arranged on the inner wall of the docking cylinder. One end of the anti - rotation keyway is adjacent to the socket assembly, and the other end is an internal thread.

[0022] In this embodiment, the gland is fixed on the handle by screws, and waterproof glue is applied on the screws and at the gap between the gland and the contact surface of the handle for waterproof treatment. The handle is fixedly connected to the docking cylinder by fixing screws 13, and waterproof glue is applied on the fixing screws for waterproof treatment. A sealing groove is arranged at the end where the handle is fixedly connected to the docking cylinder. The sealing groove is inserted into the docking cylinder, and a sealing ring 12 is arranged in the sealing groove to seal - connect with the inner wall of the docking cylinder.

[0023] As Figure 4As shown in the figure, when the detector 1 is quickly docked with the memory logging tool string 18, it only needs to align the identification slot on the detector 1 with the identification slot on the memory logging tool string 18, place it vertically and press down hard. When it can no longer be pressed, the anti-rotation key 16 on the memory logging tool string 18 has slid into the anti-rotation key slot 14 on the inner wall of the detector docking cylinder 3. At this time, the detector 1 can no longer rotate relative to the memory logging tool string 18. Then, rotate the threaded ring 17 sleeved on the outer wall of the memory logging tool string 18 counterclockwise, so that the external thread on the threaded ring 17 is gradually screwed with the internal thread 15 on the inner wall of the docking cylinder 3. During this process, the plug assembly 9 inside the memory logging tool string 18 is accurately docked and electrically connected with the socket assembly 8 of the detector 1. After the detector 1 is docked with the memory logging tool string 18, the inner wall of the docking cylinder 3 and the outer wall of the memory logging tool string 18 form a seal through the sealing ring 19, so that the detector 1 is in a waterproof state during the whole use process.

[0024] The detection principle of the detector disclosed in this embodiment is as follows: After the detector 1 is docked with the main control instrument at the uppermost end of the memory logging tool string 18 at the wellhead, the battery sub-section of the memory logging tool string 18 supplies power to the power supply board 5 of the detector 1. The power supply module on the power supply board 5 converts the power supplied by the battery sub-section into a +5V low-voltage DC power supply and then supplies power to the circuit board 4. After the circuit board 4 is powered on, it starts to work and analyzes the data uploaded by the memory logging tool string 18 through the main control instrument. If the data analysis is correct for 6 consecutive seconds, it will control the corresponding light-emitting diode to light up. When the light-emitting diode 10 lights up red, it means that the battery sub-section supplies power to the whole string of instruments normally. When the light-emitting diode 11 lights up green, it means that the communication of the whole string of instruments is normal. When both light-emitting diodes are lit, it means that the power supply and communication of the whole string of instruments are normal, and the logging operation can continue. If one of the light-emitting diodes does not light up, the instrument string needs to be disassembled for inspection. After repair, repeat the above process until both light-emitting diodes are lit.

Claims

1. A fast wellhead detector for storage logging, characterized in that: It comprises a detection component and a docking sleeve, wherein the detection component comprises a handle with a cavity and a pressure cover covering the cavity, one end of the handle is fixedly connected to the docking sleeve, and a socket component is arranged on the end, a circuit board and a power board electrically connected to the socket component are arranged in the cavity of the handle, a light-emitting diode electrically connected to the circuit board is arranged, and the power board supplies power to the circuit board; an anti-rotation key groove and an internal thread are arranged on the inner wall of the docking sleeve.

2. The fast wellhead detector for storage logging according to claim 1, characterized in that: The gland is fixed to the handle by screws, and waterproof glue is applied on the screws and the gap between the gland and the handle.

3. The fast wellhead detector for storage logging according to claim 1, characterized in that: The handle is fixedly connected to the docking sleeve by means of fixing screws, and waterproof glue is applied to the fixing screws.

4. The fast wellhead detector for storage logging according to claim 1, characterized in that: A sealing groove is arranged at one end where the handle is fixedly connected to the docking sleeve. The sealing groove is inserted into the docking sleeve, and a sealing ring is arranged in the sealing groove.

5. The fast wellhead detector for storage logging according to claim 1, characterized in that: There are two light emitting diodes, one emitting red light and the other emitting green light.

6. The fast wellhead detector for storage logging according to claim 1, characterized in that: The power module on the power board provides 5V DC power to the circuit board.

7. The fast wellhead detector for storage logging according to claim 1, characterized in that: One end of the anti-rotation keyway on the inner wall of the docking sleeve is adjacent to the socket assembly, and the other end is an internal thread.

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