Downhole sand monitoring apparatus

Abstract

The present application relates to the well sand monitoring equipment, including the mounting plate, the bottom of mounting plate is provided with fixed mechanism, the top of mounting plate is fixedly connected with winding box, the inside of winding box is provided with two winding tapes, the top of mounting plate is fixedly connected with card box, the bottom of card box is movably connected with monitor, the bottom of monitor is movably connected with pipe body, the fixed mechanism includes fixed plate, the bottom of mounting plate is fixedly connected with two fixed plates, the inside of fixed plate is movably connected with first bidirectional screw rod, the outer surface of first bidirectional screw rod is fixedly connected with first torsion disc, the outer surface of first bidirectional screw rod is sleeved with two connecting plates, and the opposite faces of two connecting plates are fixedly connected with first connecting rod. The well sand monitoring equipment is provided with more reliable binding capacity through the setting of winding box and winding tape, and has winding function on the basis of original binding.

Description

Technical Field

[0001] This invention relates to the field of sand and gravel monitoring technology, specifically to underground sand and gravel monitoring equipment. Background Technology

[0002] Downhole sand and gravel monitoring is a monitoring operation conducted in real time inside wellbores such as oil wells, gas wells, and water wells to monitor whether underground fluids (oil, gas, and water) carry sand particles as they flow upwards, how much sand they carry, and whether the amount of sand is excessive.

[0003] During monitoring, acoustic emission is usually used. However, traditional ultrasonic monitoring instruments are mostly used by manually tying the instrument directly to the pipe with a rope and fitting it to the pipe. This single fixing method will loosen the rope after long-term use, and the fixing effect is not ideal. Therefore, the underground sand and gravel monitoring equipment is proposed to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an underground sand and gravel monitoring device with advantages such as reinforced and adjustable fixation. It solves the problem that traditional ultrasonic monitoring instruments mostly rely on manual methods to directly tie the monitoring instrument to the pipeline with a rope and fit it against the pipeline. This single fixing method leads to the rope loosening and unsatisfactory fixing effect after long-term use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an underground sand and gravel monitoring device, including a mounting plate, a fixing mechanism at the bottom of the mounting plate, a winding box fixedly connected to the top of the mounting plate, two winding tapes inside the winding box, a card box fixedly connected to the top of the mounting plate, a monitoring instrument movably connected to the bottom of the card box, and a pipe body movably connected to the bottom of the monitoring instrument; The fixing mechanism includes a fixing plate. Two fixing plates are fixedly connected to the bottom of the mounting plate. A first bidirectional screw is movably connected inside the fixing plate. A first torsion plate is fixedly connected to the outer surface of the first bidirectional screw. Two connecting plates are sleeved on the outer surface of the first bidirectional screw. A first connecting rod is fixedly connected to the opposite sides of the two connecting plates. Two fixing seats are fixedly connected to the opposite ends of the two first connecting rods. Two first threaded cylinders are rotatably connected to the bottom of the two fixing seats. A second bidirectional screw is movably connected inside the two first threaded cylinders. A second torsion plate is fixedly connected to the outer surface of the left second bidirectional screw. Two second threaded cylinders are sleeved on the outer surfaces of the two second bidirectional screws. A second connecting rod is provided below the two first connecting rods. Two spring cylinders are sleeved on the outer surfaces of the two first connecting rods and the second connecting rods. Two sliders are sleeved on the outer surfaces of the two first connecting rods and the second connecting rods. A sliding rod is movably connected inside the two sliders. Mounting seats are fixedly connected to the opposite faces of the two sliders. Arc-shaped plates are fixedly connected to the opposite faces of the two mounting seats.

[0006] Preferably, the opposite surfaces of the fixing plates are provided with first rotating grooves adapted to the first bidirectional screw, and the interiors of the two connecting plates are respectively provided with first threaded grooves adapted to the first bidirectional screw.

[0007] Preferably, the number of the fixed base, the first threaded cylinder, the slider, and the spring cylinder are all four, and the four spring cylinders are respectively located between the four first threaded cylinders and the four sliders.

[0008] Preferably, each of the four first threaded cylinders has a second threaded groove adapted to the two second bidirectional screws, and the second torsion disc is located between the left first threaded cylinder and the left second threaded cylinder.

[0009] Preferably, each of the four sliders has a limiting groove inside that matches the two sliders, and the tops of the two lower fixing seats are rotatably connected to the bottoms of the two lower second threaded cylinders.

[0010] Preferably, the interior of each of the four sliders is provided with a sliding hole that is adapted to the first connecting rod and the second connecting rod, and the first twisting plate and the second twisting plate are both regular hexagons.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. This downhole sand and gravel monitoring equipment has a more reliable binding capability by setting up a winding box and winding belt. On the basis of the original binding, the winding function enables the winding belt to automatically shrink after binding, strengthening the fixation and further improving the binding function.

[0012] 2. This downhole sand and gravel monitoring equipment features an adjustable fixing mechanism. In addition to rope binding, it directly clamps and fixes the pipe, further enhancing the fixing effect and effectively preventing inaccurate measurements due to deterioration in the fixing effect over time. Furthermore, the adjustable fixing allows for flexible installation on pipes of different diameters, increasing the equipment's usability. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the mounting plate of the present invention; Figure 2 This is a front sectional view of the present invention; Figure 3 This is a right view of the present invention; Figure 4 This is an enlarged structural diagram of point A in the present invention.

[0014] In the diagram: 1. Mounting plate; 2. Fixing mechanism; 201. Fixing plate; 202. First bidirectional screw; 203. First torsion disc; 204. Connecting plate; 205. First connecting rod; 206. Fixing seat; 207. First threaded cylinder; 208. Second bidirectional screw; 209. Second torsion disc; 210. Second threaded cylinder; 211. Second connecting rod; 212. Spring cylinder; 213. Slider; 214. Sliding rod; 215. Mounting seat; 216. Arc plate; 3. Rewinding box; 4. Rewinding tape; 5. Card box; 6. Monitoring instrument; 7. Tube body. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figure 1-4 The downhole sand and gravel monitoring device in this embodiment includes an installation plate 1, a fixing mechanism 2 at the bottom of the installation plate 1, a winding box 3 fixedly connected to the top of the installation plate 1, two winding belts 4 inside the winding box 3, a card box 5 fixedly connected to the top of the installation plate 1, a monitoring instrument 6 movably connected to the bottom of the card box 5, and a pipe body 7 movably connected to the bottom of the monitoring instrument 6. The fixing mechanism 2 includes a fixing plate 201. Two fixing plates 201 are fixedly connected to the bottom of the mounting plate 1. A first bidirectional screw 202 is movably connected inside the fixing plate 201. A first torsion plate 203 is fixedly connected to the outer surface of the first bidirectional screw 202. Two connecting plates 204 are sleeved on the outer surface of the first bidirectional screw 202. A first connecting rod 205 is fixedly connected to the opposite sides of the two connecting plates 204. Two fixing seats 206 are fixedly connected to the opposite ends of the two first connecting rods 205. Two first threaded cylinders 207 are rotatably connected to the bottom of the two fixing seats 206. A second bidirectional screw 208 is movably connected inside the two first threaded cylinders 207. A second torsion disc 209 is fixedly connected to the outer surface of the second bidirectional screw 208 on the left. Two second threaded cylinders 210 are sleeved on the outer surfaces of the two second bidirectional screws 208. A second connecting rod 211 is provided below the two first connecting rods 205. Two spring cylinders 212 are sleeved on the outer surfaces of the two first connecting rods 205 and the second connecting rod 211. Two sliders 213 are sleeved on the outer surfaces of the two first connecting rods 205 and the second connecting rod 211. A sliding rod 214 is movably connected inside the two sliders 213. Mounting seats 215 are fixedly connected to the opposite surfaces of the two sliders 213. Arc plates 216 are fixedly connected to the opposite surfaces of the two mounting seats 215.

[0017] The mounting plate 1 provides mounting and fixing for the equipment. The winding box 3 allows the two winding tapes 4 to automatically wind up. When fixing is required, the monitor 6 can be directly tied to the tube 7 by binding. The automatic retraction of the winding tape 4 enhances the fixing effect. The monitor 6 is equipped with an ultrasonic generator, sensor, and signal converter, which can use the sound wave method to detect sand and gravel inside the tube 7. The fixing plate 201 provides rotational support for the first bidirectional screw 202. The first torsion plate 203 can directly drive the first bidirectional screw 202 to rotate by rotation.

[0018] When implementing this procedure, please follow these steps: 1) First, twist the first twisting disc 203 to make it drive the first bidirectional screw 202 to rotate, which in turn drives the two connecting plates 204 to move relative to each other, thereby achieving the purpose of adjusting the spacing laterally; 2) Then twist the second twisting disc 209 to make it drive the second bidirectional screw 208 on the left to rotate. Due to the setting of the second threaded groove, the two first threaded cylinders 207 and the two second threaded cylinders 210 rotate relative to each other, thereby driving the fixed seat 206 to adjust the vertical spacing. 3) By using the spring cylinder 212, its compressible properties allow the arc plate 216 to expand, thus adjusting its size for pipes of different diameters. 4) After final adjustment, the slider 213 is directly pushed to move by utilizing the rebound property of the spring cylinder, which in turn drives the mounting base 215 to move, and finally the arc plate 216 descends to clamp and fix it.

[0019] In summary, this downhole sand and gravel monitoring equipment, by incorporating a winding box 3 and a winding belt 4, provides a more robust binding capability. Building upon the existing binding mechanism, the winding belt 4 automatically retracts after binding, reinforcing the fixation and further improving the binding function. The fixing mechanism 2 enables adjustable fixing, and by directly clamping and fixing the pipe in addition to rope binding, the fixing effect is further enhanced, effectively preventing the equipment from deteriorating in its fixation over time, which could lead to inaccurate measurements. Furthermore, the adjustable fixing allows for flexible direct fixation to pipes of different diameters, increasing the equipment's operational flexibility.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An underground sand and gravel monitoring device, including a mounting plate (1), characterized in that, The mounting plate (1) is provided with a fixing mechanism (2) at the bottom, and a winding box (3) is fixedly connected to the top of the mounting plate (1). Two winding belts (4) are provided inside the winding box (3). A card box (5) is fixedly connected to the top of the mounting plate (1). A monitoring instrument (6) is movably connected to the bottom of the card box (5). A tube body (7) is movably connected to the bottom of the monitoring instrument (6). The fixing mechanism (2) includes a fixing plate (201). Two fixing plates (201) are fixedly connected to the bottom of the mounting plate (1). A first bidirectional screw (202) is movably connected inside the fixing plate (201). A first torsion plate (203) is fixedly connected to the outer surface of the first bidirectional screw (202). Two connecting plates (204) are sleeved on the outer surface of the first bidirectional screw (202). A first connecting rod (205) is fixedly connected to the opposite sides of the two connecting plates (204). Two fixing seats (206) are fixedly connected to the opposite ends of the two first connecting rods (205). Two first threaded cylinders (207) are rotatably connected to the bottom of the two fixing seats (206). A second bidirectional screw (208) is movably connected inside the two first threaded cylinders (207). A second torsion plate (209) is fixedly connected to the outer surface of the second bidirectional screw (208). Two second threaded cylinders (210) are sleeved on the outer surfaces of the two second bidirectional screws (208). A second connecting rod (211) is provided below the two first connecting rods (205). Two spring cylinders (212) are sleeved on the outer surfaces of the two first connecting rods (205) and the second connecting rods (211). Two sliders (213) are sleeved on the outer surfaces of the two first connecting rods (205) and the second connecting rods (211). A sliding rod (214) is movably connected inside the two sliders (213). Mounting seats (215) are fixedly connected to the opposite surfaces of the two sliders (213). Arc plates (216) are fixedly connected to the opposite surfaces of the two mounting seats (215).

2. The downhole sand and gravel monitoring equipment according to claim 1, characterized in that, The opposite surfaces of the fixing plate (201) are provided with a first rotating groove adapted to the first bidirectional screw (202), and the interiors of the two connecting plates (204) are respectively provided with a first threaded groove adapted to the first bidirectional screw (202).

3. The downhole sand and gravel monitoring equipment according to claim 1, characterized in that, The number of the fixed base (206), the first threaded cylinder (207), the slider (213), and the spring cylinder (212) are all four, and the four spring cylinders (212) are respectively located between the four first threaded cylinders (207) and the four sliders (213).

4. The downhole sand and gravel monitoring equipment according to claim 1, characterized in that, Each of the four first threaded cylinders (207) has a second threaded groove adapted to the two second bidirectional screws (208) inside, and the second twisting disc (209) is located between the left first threaded cylinder (207) and the left second threaded cylinder (210).

5. The downhole sand and gravel monitoring equipment according to claim 1, characterized in that, The interior of each of the four sliders (213) is provided with a limiting groove that is compatible with the two sliders (214), and the tops of the two lower fixing seats (206) are rotatably connected to the bottoms of the two lower second threaded cylinders (210).

6. The downhole sand and gravel monitoring equipment according to claim 1, characterized in that, The four sliders (213) are respectively provided with sliding holes that are adapted to the first connecting rod (205) and the second connecting rod (211), and the first twisting plate (203) and the second twisting plate (209) are both regular hexagons.

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