SAGD (Steam Assisted Gravity Drainage) electric heating cable protection device special for heavy oil well

Abstract

The utility model belongs to the technical field of electric heating cables, and discloses a special SAGD (steam assisted gravity drainage) electric heating cable protection device for a heavy oil well, which comprises a protection block I and a protection block II, a plurality of shaft sleeves I are mounted on one side of the protection block I, a plurality of shaft sleeves II are mounted on one side of the protection block II, and the shaft sleeves I and the shaft sleeves II are movably connected through shafts. A first groove is formed in the inner wall of one side of the second shaft sleeve, a pair of second grooves are formed in one side of the first groove, a pair of positioning shafts are installed in the second grooves, a first transmission rod is rotationally connected to the peripheries of the positioning shafts, a first fixing block is installed at one end of the first transmission rod, a guide block is installed at the other end of the first transmission rod, and a transmission block is movably connected into the second groove; the transmission block is located between the pair of guide blocks, the pair of guide blocks are attached to the two sides of the transmission block, a second transmission rod is installed at one end of the transmission block, and a second fixing block is installed at one end of the second transmission rod. The device is simple and reasonable in structure, novel in design, easy to operate, high in practicability and convenient to widely popularize and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric heating cable protection, and more specifically, it particularly relates to a SAGD electric heating cable protection device for heavy oil wells. Background Technique

[0002] At present, in oil exploitation, especially in heavy oil thermal recovery wells, in order to ensure the normal production of oil wells, electric heating is used as an auxiliary production method. For this production method, a hollow rod electric heating supporting process must be adopted, that is, the electric heating cable is passed through a hollow polished rod and a hollow sucker rod into the well, and the operating current is adjusted through a ground control device to control the heating temperature, reduce the viscosity of crude oil, and ensure the normal production of oil wells.

[0003] At present, some electric heating cable protection devices adopt an integral structure in the production design stage, which directly results in the fixed size of their cable slots. However, considering the diversity of the sizes of electric heating cables, in order to meet the requirements of different specifications of cables, it is often necessary to purchase various models of electric heating cable protection devices. This approach not only greatly increases the cost of equipment procurement but also causes some unused protection devices to be idle in the warehouse, thus reducing the overall utilization efficiency of the electric heating cable protection devices.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a SAGD electric heating cable protection device for heavy oil wells is provided, with the expectation of achieving a more practical value. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a SAGD electric heating cable protection device for heavy oil wells, which is achieved by the following specific technical means:

[0006] A SAGD electric heating cable protection device for heavy oil wells includes a first protection block and a second protection block. A plurality of first bushings are installed on one side of the first protection block, and a plurality of second bushings are installed on one side of the second protection block. The plurality of first bushings and the plurality of second bushings are movably connected by a shaft. A first groove is provided on the inner wall of one side of the second bushing, and a pair of second grooves are provided on one side of the first groove. A pair of positioning shafts are installed in the second grooves. A first transmission rod is rotatably connected to the periphery of the positioning shafts. A first fixing block is installed at one end of the first transmission rod, and a guiding block is installed at the other end of the first transmission rod. A transmission block is movably connected in the second groove. The transmission block is located between the pair of guiding blocks, and the pair of guiding blocks are in contact with both sides of the transmission block. A second transmission rod is installed at one end of the transmission block, and a second fixing block is installed at one end of the second transmission rod. A push rod is installed at the other end of the transmission block. A threaded groove is provided on one side of the push rod, and the threaded groove extends into the transmission block. A threaded rod is threadedly connected in the threaded groove.

[0007] Further, an anti-slip pad is installed on one inner wall of the first protection block.

[0008] Further, a first connecting block is installed on one side of the first protection block. A pair of first through grooves are provided on one side of the first connecting block. A rotating block is rotatably connected in the first through grooves by a shaft. A locking bolt is installed on one side of the rotating block, and a nut is threadedly connected to the periphery of the locking bolt.

[0009] Further, a second connecting block is installed on one side of the second protection block. A pair of second through grooves are provided on one side of the second connecting block. The size of the second through grooves matches the size of the locking bolt.

[0010] Further, a pair of compression springs are installed on both sides of the second groove. The other ends of the compression springs are connected to one side of the first transmission rod.

[0011] Further, one end of the threaded rod passes through one side of the second protection block and is installed with an adjusting block.

[0012] Further, the upper end surface and the bottom end surface of the transmission block are respectively attached to the top and the bottom of the second groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] By the combined use of the adjusting block, the threaded rod, the threaded groove, the push rod, the transmission block, the second transmission rod, the second fixing block, the guiding block, the first transmission rod and the first fixing block, the cable is placed between the pair of the first fixing block and the second fixing block, and then the adjusting block is rotated. The adjusting block drives the threaded rod to rotate. Since the threaded rod is threadedly connected to the threaded groove, when the threaded rod rotates, it drives the push rod to move forward. The push rod drives the transmission block to move forward. The transmission block drives the second fixing block to move forward through the second transmission rod. When the transmission block moves forward, it pushes the pair of guiding blocks to both sides. When the pair of guiding blocks move to both sides, under the action of the first transmission rod, the pair of the first fixing blocks move towards the middle and fix the electric heating cable, so that the protection device can achieve the effect of fixing and protecting electric heating cables of various sizes, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional schematic diagram of the utility model.

[0016] Figure 2 is a three-dimensional schematic diagram of another perspective of the utility model.

[0017] Figure 3 is a three-dimensional schematic diagram of the first protection block in the utility model.

[0018] Figure 4It is a three-dimensional schematic diagram of the second protection block in the present utility model.

[0019] Figure 5 It is a top view sectional schematic diagram of the second protection block in the present utility model.

[0020] Figure 6 It is the present utility model Figure 4 An enlarged schematic diagram of A therein.

[0021] Figure 7 It is the present utility model Figure 5 An enlarged schematic diagram of B therein.

[0022] In the figure, the corresponding relationship between the component names and the attached drawing numbers is as follows:

[0023] 1. First protection block; 101. First bushing; 102. Anti-slip pad; 2. Second protection block; 201. Second bushing; 202. First groove; 203. Second groove; 3. First transmission rod; 301. Positioning shaft; 302. First fixing block; 303. Guide block; 4. Transmission block; 5. Second transmission rod; 501. Second fixing block; 6. Push rod; 601. Thread groove; 7. Threaded rod; 701. Adjusting block; 8. First connecting block; 801. First through groove; 9. Locking bolt; 901. Rotating block; 902. Nut; 10. Second connecting block; 1001. Second through groove; 11. Compression spring. Specific embodiments

[0024] The following further describes in detail the embodiments of the present utility model with reference to the attached drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0025] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the attached drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Embodiment:

[0028] As shown in the Figure 1 to Figure 7 accompanying drawings:

[0029] The present utility model provides a special SAGD electric heating cable protection device for heavy oil wells, which includes a first protection block 1 and a second protection block 2. A plurality of first bushings 101 are installed on one side of the first protection block 1, and a plurality of second bushings 201 are installed on one side of the second protection block 2. The plurality of first bushings 101 and the plurality of second bushings 201 are movably connected by a shaft. A first groove 202 is provided on the inner wall of one side of the second bushing 201, and a pair of second grooves 203 are provided on one side of the first groove 202. A pair of positioning shafts 301 are installed in the second grooves 203. A first transmission rod 3 is rotatably connected to the periphery of the positioning shaft 301. A first fixing block 302 is installed at one end of the first transmission rod 3, and a guiding block 303 is installed at the other end of the first transmission rod 3. A transmission block 4 is movably connected in the second groove 203. The transmission block 4 is located between a pair of guiding blocks 303, and the two guiding blocks 303 are in contact with both sides of the transmission block 4. A second transmission rod 5 is installed at one end of the transmission block 4. A second fixing block 501 is installed at one end of the second transmission rod 5. A push rod 6 is installed at the other end of the transmission block 4. A threaded groove 601 is provided on one side of the push rod 6, and the threaded groove 601 extends into the transmission block 4. A threaded rod 7 is threadedly connected in the threaded groove 601.

[0030] Among them, an anti-slip pad 102 is installed on the inner wall of one side of the first protection block 1, and the anti-slip pad 102 can achieve an anti-slip effect.

[0031] Among them, a first connecting block 8 is installed on one side of the first protection block 1. A pair of first through grooves 801 are provided on one side of the first connecting block 8. A rotating block 901 is rotatably connected in the first through grooves 801 by a shaft. A locking bolt 9 is installed on one side of the rotating block 901, and a nut 902 is threadedly connected to the periphery of the locking bolt 9.

[0032] Among them, a second connecting block 10 is installed on one side of the second protection block 2. A pair of second through grooves 1001 are provided on one side of the second connecting block 10, and the size of the second through grooves 1001 matches the size of the locking bolt 9.

[0033] Wherein, a pair of compression springs 11 are installed on both sides of the second groove 203, and the other ends of the compression springs 11 are connected to one side of the first transmission rod 3. The compression springs 11 can reset the first transmission rod 3.

[0034] Wherein, one end of the threaded rod 7 passes through one side of the second protection block 2 and is installed with an adjusting block 701. The threaded rod 7 can be driven to rotate through the adjusting block 701.

[0035] Wherein, the upper end surface and the bottom end surface of the transmission block 4 are respectively attached to the top and the bottom of the second groove 203.

[0036] Working principle of this embodiment:

[0037] When installing the electric heating cable protection device, first place the cable between a pair of first fixing blocks 302 and a second fixing block 501, and then start rotating the adjusting block 701. The adjusting block 701 drives the threaded rod 7 to rotate. Since the threaded rod 7 is in threaded connection with the thread groove 601, when the threaded rod 7 rotates, it drives the push rod 6 to move forward. The push rod 6 drives the transmission block 4 to move forward. The transmission block 4 drives the second fixing block 501 to move forward through the second transmission rod 5. When the transmission block 4 moves forward, it pushes a pair of guiding blocks 303 to both sides. When the pair of guiding blocks 303 move to both sides, under the action of the first transmission rod 3, a pair of first fixing blocks 302 move towards the middle and fix the electric heating cable. Then, wrap the first protection block 1 and the second protection block 2 around the steel pipe, rotate the locking bolt 9 into the second through groove 1001, and start rotating the nut 902 to make the nut 902 closely attach to one side of the second connecting block 10, so as to quickly fix the electric heating cable protection device on the steel pipe.

[0038] The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A SAGD electric heating cable protection device for heavy oil wells, comprising a protection block 1 (1) and a protection block 2 (2), characterized in that: A plurality of shaft sleeves (101) are installed on one side of the protection block (1), and a plurality of shaft sleeves (201) are installed on one side of the protection block (2). The plurality of shaft sleeves (101) and the plurality of shaft sleeves (201) are movably connected via an axis. A groove (202) is provided on the inner wall of one side of the shaft sleeve (201). A pair of grooves (203) are provided on one side of the groove (202). A pair of positioning shafts (301) are installed in the grooves (203). The outer periphery of the positioning shaft (301) is rotatably connected to a transmission rod (3). A fixing block (302) is installed at one end of the transmission rod (3). The transmission rod (3) A guide block (303) is mounted on the other end of the first drive member (203); a transmission block (4) is movably connected in the second groove (203); the transmission block (4) is located between the pair of guide blocks (303), and the pair of guide blocks (303) are in contact with two sides of the transmission block (4); a transmission rod (5) is mounted on one end of the transmission block (4); a fixed block (501) is mounted on one end of the second transmission rod (5); a push rod (6) is mounted on the other end of the transmission block (4); a threaded groove (601) is provided on one side of the push rod (6); the threaded groove (601) extends into the transmission block (4); a threaded rod (7) is threadedly connected to the inner thread of the threaded groove (601).

2. The SAGD electric heating cable protection device for heavy oil wells as claimed in claim 1 is characterized by: An anti-slip pad (102) is installed on the inner wall of one side of the protection block 1 (1).

3. The SAGD electric heating cable protection device for heavy oil wells as claimed in claim 1 is characterized by: A connecting block (8) is installed on one side of the protection block (1); a pair of through slots (801) are provided on one side of the connecting block (8); a rotating block (901) is rotatably connected to the through slot (801) via an axis; a locking bolt (9) is installed on one side of the rotating block (901); a nut (902) is threadedly connected to the outer periphery of the locking bolt (9).

4. The SAGD electric heating cable protection device for heavy oil wells as claimed in claim 3 is characterized by: A connecting block 2 (10) is installed on one side of the protection block 2 (2), and a pair of through slots 2 (1001) is provided on one side of the connecting block 2 (10), wherein the size of the through slots 2 (1001) matches the size of the locking bolt (9).

5. The SAGD electric heating cable protection device for heavy oil wells as claimed in claim 1, characterized in that: A pair of compression springs (11) are installed on both sides of the second groove (203), and the other end of the compression spring (11) is connected to one side of the first transmission rod (3).

6. The SAGD electric heating cable protection device for heavy oil wells as claimed in claim 1, characterized in that: One end of the threaded rod (7) passes through one side of the second protection block (2) and is equipped with an adjustment block (701).

7. The SAGD electric heating cable protection device for heavy oil wells as claimed in claim 1, characterized in that: The upper end surface and the bottom end surface of the transmission block (4) are respectively fitted with the top and the bottom of the second groove (203).

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