Dynamic immersion test device for simulating bridge plug entering well and before setting
By designing a dynamic immersion test device, the problem of inaccurate temperature control during the insertion of bridge plugs into the well was solved, and the performance of bridge plugs was realistically simulated and effectively evaluated.
Patent Information
- Application Number
- CN202520592200.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-31
AI Technical Summary
In the existing technology, the simulated immersion test of the bridge plug during the process from well entry to setting and sealing fails to truly reflect the actual working conditions, resulting in inaccurate temperature control, affecting the evaluation of the bridge plug's setting and pressure-bearing performance, and distorting the test results.
A dynamic immersion test device was designed to simulate the process of bridge plugs entering the well and before setting. The device includes an immersion container, a heating device, a temperature sensing device, and a circulation pump. Through dynamic temperature control of the direct and bypass heat dissipation pipes, the bridge plugs are ensured to realistically simulate the well entry process in a fluid environment.
Temperature control of the bridge plug in a dynamic fluid environment was achieved, realistically simulating the well insertion process, improving the accuracy and reliability of the test, and ensuring the effectiveness of the bridge plug performance evaluation.
Smart Images
Figure CN223806115U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to downhole tool verification test technical field, concretely relates to a kind of dynamic soaking test device simulating bridge plug into well to seat seal before. BACKGROUND
[0002] During the process of soluble bridge plug from entering well to seat seal, it needs about 2 hours, during the process, bridge plug is soaked in liquid environment, bridge plug will dissolve, affect the seat seal and pressure-bearing performance of bridge plug, therefore, when simulating test on ground, the simulation soaking process of this entering well stage needs to be considered.
[0003] At present, most bridge plug manufacturers do not consider this process, even if considering this process to soak, it is only simulated from static point of view, bridge plug is placed in container filled with liquid, liquid is heated to required temperature, then time is recorded, and finally bridge plug is taken out.
[0004] During the test process, soluble bridge plug soaking and dissolution will release heat, the temperature of liquid will rise, especially in the case that the volume of liquid is not large or bridge plug dissolves intensively, the temperature rises too high and too fast, the control effect of temperature in prior art is insufficient, often the test temperature in test process is greater than preset temperature, which means that the temperature of bridge plug simulation test is higher than the working temperature of bridge plug in actual working condition, resulting in that test evaluation effect is distorted, causing bridge plug development difficulty to increase, bridge plug material selection and finally bridge plug do not match actual working condition, etc. UTILITY MODEL CONTENTS
[0005] The utility model provides a kind of dynamic soaking test device simulating bridge plug into well to seat seal before to solve one of prior art problems 。
[0006] Technical scheme as follows:
[0007] A kind of dynamic soaking test device simulating bridge plug into well to seat seal before, including soaking container, heating device, temperature sensing device and circulating pump;The top of the soaking container has opening, and the bottom of its is equipped with grid device;The heating device is used to heat solution in the soaking container, the temperature sensing device is used to detect the temperature of solution in soaking container, the bottom and top of the soaking container are communicated by pipeline, the pipeline includes straight-through pipeline and bypass heat dissipation pipeline, the straight-through pipeline and the bypass heat dissipation pipeline are connected in parallel and are equipped with passage selection device, and the circulating pump is used to form fluid in the soaking container by pipeline with the solution.
[0008] The working principle and beneficial effects of the utility model are: during the test process, the solution is circulated through the straight-through pipeline, when the temperature sensor detects that the temperature is higher than the predetermined value, the circulation pipeline of the solution is switched to the bypass heat dissipation pipeline through the channel selection device, the cooled solution is injected into the soaking container from the top of the soaking container, and the liquid temperature in the soaking container can quickly reach the predetermined temperature.
[0009] Based on the above technical scheme, the utility model still can make improvement as follows.
[0010] Further, the bypass heat dissipation pipeline is a spiral pipeline or is provided with a cooling fin on the pipeline of the bypass heat dissipation pipeline.
[0011] The beneficial effects of the above further scheme are: the spiral pipeline increases the length of the pipeline for heat exchange with the outside world, and improves the heat dissipation effect; the cooling fin can also improve the heat dissipation efficiency.
[0012] Based on the above technical scheme, the utility model still can make improvement as follows.
[0013] Further, it further includes the hanging rope device provided at the top of the soaking container, and the hanging rope device is used for hanging the measured bridge plug and keeping a distance with the grid device.
[0014] The beneficial effects of the above further scheme are: the bridge plug is hung in the soaking container, and due to the impact of the circulating fluid, the bridge plug swings and hits the casing left and right at random, and when verifying the dynamic soaking, the impact of the bridge plug under the action of the fluid can also be simulated, and the stability of the bridge plug is verified.
[0015] Based on the above technical scheme, the utility model still can make improvement as follows.
[0016] Further, the grid device includes the filter screen support, and the filter screen support is provided with a cavity containing the filter medium.
[0017] The beneficial effects of the above further scheme are: by setting the filter medium, the reliability of filtration is improved, and the bridge plug dissolution product in the upper part is prevented from entering the circulating pump through the lower part of the soaking container, so that the circulating pump is prevented from being damaged in advance.
[0018] Based on the above technical scheme, the utility model still can make improvement as follows.
[0019] Further, the channel selection device includes a tee joint and selection switches respectively arranged on the straight-through pipeline and the bypass heat dissipation pipeline.
[0020] The beneficial effect of the further scheme is that the channel pipeline switching is realized quickly and reliably.
[0021] Based on the above technical scheme, the utility model further can make improvement as follows.
[0022] Further, the heating device is an electric heating blanket or a ceramic heater arranged on the outer wall of the soaking container.
[0023] The beneficial effect of the further scheme is that the heating device is arranged on the outer wall of the soaking container, so that the heating is satisfied, direct contact with the liquid is avoided, and the reliability and safety are improved.
[0024] Based on the above technical scheme, the utility model further can make improvement as follows.
[0025] Further, the utility model further comprises a control device, which is electrically connected with the heating device, the temperature sensing device, the circulating pump and the channel selection device.
[0026] The beneficial effect of the further scheme is that the temperature of the temperature sensor is received by the control device, and then the heating and the channel selection are controlled.
[0027] Based on the above technical scheme, the utility model further can make improvement as follows.
[0028] Further, the utility model further comprises an alarm device, which is electrically connected with the control device.
[0029] The beneficial effect of the further scheme is that the alarm device can send a reminding signal. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 is the three-dimensional structure schematic diagram of the utility model test device embodiment one;
[0031] Figure 2 is the partial sectional view of one direction of embodiment one;
[0032] Figure 3 is the three-dimensional structure schematic diagram of the grid device in embodiment one;
[0033] Figure 4 is the sectional structure schematic diagram of the grid device in embodiment one;
[0034] Figure 5 is the three-dimensional structure schematic diagram of the utility model test device embodiment two;
[0035] Figure 6 is the partial sectional view of one direction of embodiment two.
[0036] The components represented by the reference numbers in the drawings are listed as follows:
[0037] 1, soaking container, 2, heating device, 3, temperature sensing device, 4, circulating pump, 5, straight-through pipeline, 6, bypass heat dissipation pipeline, 7, grid device, 8, bridge plug, 9, hanging rope device. DETAILED DESCRIPTION
[0038] The principles and features of the present application will be described below in conjunction with the drawings, and the examples are only used to explain the present application and not to limit the scope of the present application.
[0039] The structure of the dynamic soaking test device example one before the bridge plug 8 is put into the well and seated is simulated, and the structure schematic diagram is seen from Figures 1 to 4 .
[0040] The soaking container 1, the heating device 2, the temperature sensing device 3 and the circulating pump 4 are included; the soaking container 1 has an opening at the top and is provided with the grid device 7 at the bottom, the heating device 2 is used for heating the solution in the soaking container 1, the temperature sensing device 3 is used for detecting the temperature of the solution in the soaking container 1, the bottom and the top of the soaking container 1 are communicated through the pipeline, the pipeline includes the straight-through pipeline 5 and the bypass heat dissipation pipeline 6, the straight-through pipeline 5 and the bypass heat dissipation pipeline 6 are connected in parallel and are provided with the channel selection device, and the circulating pump 4 is used for forming a fluid in the soaking container 1 through the pipeline. In this embodiment, the bypass heat dissipation pipeline 6 is a spiral pipeline, wherein the outer diameter of the spiral pipeline can be appropriately sized according to the need for heat dissipation.
[0041] The soaking container 1 is vertically arranged, the grid device 7 includes a filter screen support provided with four supporting feet placed on the bottom of the soaking container 1, and a cavity accommodating a filter medium is arranged in the filter screen support. The heating device 2 is an electric heating blanket arranged on the outer wall of the soaking container 1 and covering the height range of the solution in the soaking container 1 in the vertical direction, thereby ensuring the reliability of heating the solution. The temperature sensing device 3 is arranged on the top of the soaking container 1 and ensures contact with the solution. The circulating pump 4 is arranged on the outside of the soaking container 1 close to the bottom, the pipeline includes the straight-through pipeline 5 and the bypass heat dissipation pipeline 6, wherein the straight-through pipeline 5 is close to one side of the soaking container 1, the bypass heat dissipation pipeline 6 is away from the other side of the soaking container 1, the straight-through pipeline 5 and the bypass heat dissipation pipeline 6 are connected in parallel, and the outlet end of the pipeline is located at the upper part of the soaking container 1, thereby ensuring that the fluid in the pipeline dynamically soaks the bridge plug 8. As Figure 2As shown, the channel selection device includes a tee joint and selection switches arranged on the straight-through pipeline 5 and the bypass heat dissipation pipeline 6 respectively. A control device (not shown in the figure) is electrically connected with the heating device 2, the temperature sensing device 3, the circulating pump 4, the alarm device and the channel selection device, and can control the heating time of the heating device 2, receive the temperature value of the temperature sensing device 3, control the opening and closing of the circulating pump 4, control the opening and closing of the straight-through pipeline 5 and the bypass heat dissipation pipeline 6 in the channel selection device, and send an alarm signal through the alarm device.
[0042] The working process of the test device in the embodiment is as follows: the soaking solution is prepared, such as the salinity, the chloride ion concentration, the acid concentration and the like, and the solution is placed in the soaking container; the bridge plug 8 to be tested is placed on the grid device 7; the required heating temperature and heating time of the heating device 2 are set through the control device, and the power supply of the heating device 2 is turned on; the control device opens the straight-through pipeline 5 and starts the circulating pump 4, and the control device simultaneously monitors the temperature through the temperature sensor, and when the actual temperature of the solution exceeds the required temperature, the control device closes the straight-through pipeline 5 and opens the bypass heat dissipation pipeline to dissipate heat. After the heating time is up, the power supply of the heating device 2 is turned off, the circulating pump 4 is turned off, and the alarm device sends an alarm, the bridge plug 8 is taken out, and the subsequent test of the performance evaluation of the bridge plug 8 is carried out.
[0043] In specific embodiments, the filter medium can be quartz sand, filter cotton or other filter materials.
[0044] The structural diagram of the test device of the second embodiment of the utility model is shown in Figure 5 and Figure 6 The difference from the first embodiment is that the test device further comprises a hanging rope device 9 arranged on the top of the soaking container 1, and the hanging rope device 9 is used for hanging the measured bridge plug 8 and maintaining a distance with the grid device 7. The hanging rope device 9 is a horizontal rod horizontally arranged on the top of the soaking container 1, and a groove for fixing the hanging rope device 9 is arranged on the top of the main body of the soaking container 1, and a through hole for sleeving a rope is arranged in the middle of the hanging rope device 9. The bridge plug 8 is hung in the soaking container 1, and due to the impact of the circulating fluid, the bridge plug 8 swings left and right at random and collides with the casing, which can simulate the impact of the bridge plug 8 under the action of the fluid while verifying the dynamic soaking, and verify the stability of the bridge plug 8.
[0045] In specific embodiments, the channel selection device can be directly selected by a manual switch, or the channel selection can be controlled through a channel selection valve. The selection of the heating device 2 can also be realized through a ceramic heating device 2, or a heater can be directly arranged in the solution for heating.
[0046] In specific embodiments, the control device, the temperature sensing device, the heating device, the channel selection device and the alarm device can all be directly selected from mature products on the market. For example, the temperature sensing device 3 can be a digital intelligent full-automatic electronic constant temperature microcomputer sensor, which not only has a display function but also transmits temperature data to the control device. The channel selection device is a three-way joint, which can be an electric three-way ball valve, such as an L-shaped normally closed on-off electric control valve. When the electric three-way ball valve is powered on, the straight-through pipeline 5 is connected and the bypass heat dissipation pipeline 6 is closed. When the electric three-way ball valve is powered off, the straight-through pipeline 5 is closed and the bypass heat dissipation pipeline 6 is connected. The circulating pump 4 can be a high-temperature resistant centrifugal pump, and the alarm device can be a conventional audible and visual integrated audible and visual alarm that emits sound and light when the power is turned on.
[0047] The power supply of the electric three-way ball valve, the power supply of the heating device 2, the power supply of the alarm device and the power supply of the circulating pump can all be uniformly controlled by the control device, which is realized by the PLC mode.
[0048] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A device for simulating dynamic soak testing of a bridge before setting into a well, characterized in that, The device comprises a soaking container, a heating device, a temperature sensing device and a circulating pump; the top of the soaking container is provided with an opening, and the bottom of the soaking container is provided with a grid device; the heating device is used for heating the solution in the soaking container, the temperature sensing device is used for detecting the temperature of the solution in the soaking container, the bottom and the top of the soaking container are communicated through a pipeline, the pipeline comprises a straight-through pipeline and a bypass heat dissipation pipeline, the straight-through pipeline and the bypass heat dissipation pipeline are connected in parallel and are provided with a channel selection device, and the circulating pump is used for forming a fluid in the soaking container through the pipeline.
2. The device for dynamic soaking test of analog bridge plug before setting into well to seat seal according to claim 1, characterized in that, The bypass heat dissipation pipeline is a spiral pipeline or is provided with a heat dissipation fin on the pipeline of the bypass heat dissipation pipeline.
3. The device for dynamic soaking test of analog bridge plug before setting into well to seat seal according to claim 1, characterized in that, The device further comprises a hanging rope device arranged on the top of the soaking container, and the hanging rope device is used for suspending the measured bridge plug and maintaining a distance from the grid device.
4. The device of claim 1, wherein the device is used to simulate the dynamic soak test of the bridge plug before the plug is set into the well to the seat and seal. The grid device comprises a filter screen support, and the filter screen support is provided with a cavity for accommodating a filter medium.
5. The dynamic immersion test device for simulating bridge plug insertion into wells and before setting, as described in claim 1, is characterized in that... The channel selection device comprises a tee joint and selection switches arranged on the straight-through pipeline and the bypass heat dissipation pipeline respectively.
6. A dynamic soak test device for simulating the behavior of a bridge plug before it is set in a well to a seat seal, according to any one of claims 1-5, characterized in that, The heating device is an electric heating blanket or a ceramic heater arranged on the outer wall of the soaking container.
7. The device of claim 1, wherein, The device further comprises a control device, and the control device is electrically connected with the heating device, the temperature sensing device, the circulating pump and the channel selection device.
8. The device of claim 7, wherein the device is configured to simulate the dynamic soak of the bridge plug before the plug is set into the wellbore to the seat. The device further comprises an alarm device, and the alarm device is electrically connected with the control device.