4.75 inch OTK integrated resistivity

Abstract

The utility model discloses 4.75 inch OTK integrated resistivity belongs to petroleum equipment field, including main body mechanism one, the rear end of main body mechanism one is installed with main body mechanism two, the rear end of main body mechanism two is installed with main body mechanism three, main body mechanism one includes resistivity body one, the middle part of resistivity body one is equipped with through -hole, the middle part of resistivity body one is equipped with vertical hole behind through -hole, the middle part of resistivity body one is equipped with through slot behind vertical hole, and its technical scheme main point is, through with the symmetry distribution of resistivity body one and resistivity body three in the left and right ends of resistivity body two, three are made into integrated structure when setting and are made into integrated structure, and the setting of this structure makes the device have the toughness of anti -tugging, anti -cracking in use, thereby effectively improves the strength of overall structure to prolong the service life of the device.

Description

Technical Field

[0001] This utility model relates to the field of petroleum equipment, and in particular to a 4.75-inch OTK integrated resistivity. Background Technology

[0002] In the petroleum industry, resistivity is a physical quantity that measures the ability of a rock or fluid to impede electric current. Its application is typically concentrated in the "reservoir evaluation" stage of petroleum exploration and development. This involves analyzing the resistivity differences between underground rocks and fluids to determine whether a reservoir contains oil and gas, distinguish fluid types, and assess reservoir quality. It is one of the most critical parameters in petroleum logging. Therefore, resistivity is a "core indicator for identifying oil and gas" in the petroleum industry. From "oil target prediction" in the exploration stage to "reservoir evaluation and dynamic monitoring" in the development stage, it plays an irreplaceable role. It utilizes the physical difference that "oil and gas are non-conductive, while water is conductive" to transform invisible underground geological information into measurable electrical parameters, providing a scientific basis for petroleum exploration and development. Traditional resistivity resistors are divided into three parts, each connected by high-strength welding. This welding structure is prone to breakage and rupture at the weld points during use, resulting in a shorter service life for the resistivity resistor. Furthermore, the secondary welding of broken resistivity resistors significantly affects the strength of the weld points, thus increasing the cost of using the resistivity resistor. Therefore, we propose a 4.75-inch OTK integrated resistivity resistor. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a 4.75-inch OTK integrated resistivity unit. By symmetrically distributing resistivity body one and resistivity body three at the left and right ends of resistivity body two, and manufacturing the three in an integrated molding structure, the device has the toughness to resist tension and cracking during use, thus effectively improving the strength of the overall structure and extending the service life of the device.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: 4.75-inch OTK integrated resistivity, including main body structure one, main body structure two installed at the rear end of main body structure one, and main body structure three installed at the rear end of main body structure two; The main body includes a resistivity body, a through hole in the middle of the resistivity body, a vertical hole behind the through hole in the middle of the resistivity body, and a through groove behind the vertical hole in the middle of the resistivity body. The second main body includes a resistivity body. A groove is formed in the middle of the resistivity body, and a connecting hole is formed in the middle of the groove. The main body three includes a resistivity body three, in which a metal rod is fixedly disposed in the middle. A chromium element is fixedly disposed in the middle of the metal rod, and a nickel element is fixedly disposed in the middle of the chromium element. The metal rod is of model "15-15HS MAX" and is approximately 139.7 mm thick. It combines chromium and nickel elements and meets the requirements of the device for tensile properties and hardness. After manufacturing, a "stress corrosion cracking" test was conducted to prove that the material of the device is not easily damaged under specific conditions.

[0005] Furthermore, the through holes are symmetrically distributed in the middle of the resistivity body.

[0006] Furthermore, the vertical holes are symmetrically distributed in the middle of the resistivity body and located on the front and rear sides of the through hole.

[0007] Furthermore, the first resistivity body has a cylindrical structure, and a second resistivity body is fixedly disposed at the rear end of the first resistivity body.

[0008] Furthermore, a resistivity body three is fixedly disposed at the rear end of the resistivity body two.

[0009] Furthermore, the resistivity body two and resistivity body three have the same structure, and the resistivity body one and resistivity body two have the same structure.

[0010] Furthermore, the diameter of resistivity body one is the same as the diameter of resistivity body two, and the diameter of resistivity body three is smaller than the diameter of resistivity body two.

[0011] In summary, this utility model has the following beneficial effects: 1. By symmetrically distributing resistivity body one and resistivity body three at the left and right ends of resistivity body two, and manufacturing the three in one piece during installation, a one-piece structure is formed. This structure gives the device tensile and crack-resistant toughness during use, thus effectively improving the overall structural strength and extending the service life of the device. 2. By opening multiple structures for installing wire harnesses in the middle of resistivity body one, resistivity body two and resistivity body three, the internal components of the device can be connected in series through wire harnesses, thereby improving the convenience of connecting the internal components after the device is integrally molded. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure in this embodiment; Figure 2 This is in this embodiment Figure 1 Enlarged structural diagram of A in the middle; Figure 3 This is in this embodiment Figure 1 Enlarged structural diagram of B; Figure 4 This is a partially enlarged structural diagram of the main structure in this embodiment.

[0013] In the figure, 1. Main body one; 101. Resistivity body one; 102. Through hole; 103. Vertical hole; 104. Through groove; 2. Main body two; 201. Resistivity body two; 202. Groove; 203. Connecting hole; 3. Main body three; 301. Resistivity body three; 302. Metal rod; 303. Chromium element; 304. Nickel element. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings.

[0015] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0016] Reference Figure 1-4 As shown, in a preferred embodiment of this utility model, a 4.75-inch OTK integrated resistivity includes a main body mechanism 1, a main body mechanism 2 installed at the rear end of the main body mechanism 1, and a main body mechanism 3 installed at the rear end of the main body mechanism 2. The main body 1 includes a resistivity body 101, a through hole 102 is provided in the middle of the resistivity body 101, a vertical hole 103 is provided in the middle of the resistivity body 101 behind the through hole 102, and a through groove 104 is provided in the middle of the resistivity body 101 behind the vertical hole 103. The main body 2 includes a resistivity body 201. A groove 202 is formed in the middle of the resistivity body 201, and a connecting hole 203 is formed in the middle of the groove 202; The main body 3 includes a resistivity body 301. A metal rod 302 is fixedly installed in the middle of the 301. A chromium element 303 is fixedly installed in the middle of the metal rod 302. A nickel element 304 is fixedly installed in the middle of the chromium element 303. The metal rod 301 is of model "15-15HS MAX" and is about 139.7 mm thick. It combines chromium element 303 and nickel element 304, which meets the requirements of the device for tensile properties and hardness. After manufacturing, a "stress corrosion cracking" test was performed to prove that the material of the device is not easily damaged under specific conditions.

[0017] Through holes 102 are symmetrically distributed in the middle of resistivity body 101.

[0018] The vertical holes 103 are symmetrically distributed in the middle of the resistivity body 101 and are located on the front and rear sides of the through hole 102.

[0019] The resistivity body 101 is a cylindrical structure. Resistivity body 201 is fixedly installed at the rear end of resistivity body 101, and resistivity body 301 is fixedly installed at the rear end of resistivity body 201. Resistivity body 101 and resistivity body 301 are symmetrically distributed at the left and right ends of resistivity body 201. The three are manufactured as a single piece, which avoids the traditional welding structure and effectively improves the overall strength of the device, thereby extending the service life of the device.

[0020] Resistivity body 201 and resistivity body 301 have the same structure, and resistivity body 101 and resistivity body 201 have the same structure. The cylindrical structure of resistivity body 101 results in less resistance at the outer end during use, increasing the smoothness of lowering into the well. Furthermore, since all three have the same structure, this device has high applicability.

[0021] The diameter of resistivity body 101 is the same as that of resistivity body 201, while the diameter of resistivity body 301 is smaller than that of resistivity body 201. Resistivity body 101 and resistivity body 201 constitute the tail structure of the device. The smaller diameter of resistivity body 301 at the front end makes the operation smoother.

[0022] Specific implementation process: The technical content of this utility model is a 4.75-inch OTK integrated resistivity unit. Firstly, the device is divided into three parts: resistivity body one 101, resistivity body two 201, and resistivity body three 301. Multiple structures for mounting wiring harnesses are provided in each part, allowing the internal components of the device to be connected in series via wiring harnesses. Then, resistivity body one 101 and resistivity body three 301 are symmetrically distributed at the left and right ends of resistivity body two 201. All three are manufactured using a single-piece molding structure, forming an integrated structure. This structural design makes the device... The device exhibits tensile and crack-resistant toughness during use, effectively enhancing the overall structural strength and extending its service life. The various components of the device complement each other, and the resistivity body-101 is a cylindrical structure. This cylindrical structure reduces external resistance during use, increasing the smoothness of well lowering. Furthermore, the three components share the same structure, resulting in high applicability. The device also incorporates metal rods 302, chromium element 303, and nickel element 304. The metal rod 301, model "15-15HS MAX," is approximately 139.7 mm thick. The metal rod 301, combining chromium element 303 and nickel element 304, meets the device's requirements for tensile properties and hardness. After manufacturing, a stress corrosion cracking test was conducted, demonstrating that the material is not easily damaged under specific conditions.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. 4.75-inch OTK integrated resistivity, characterized by: It includes a main body mechanism one (1), a main body mechanism two (2) installed at the rear end of the main body mechanism one (1), and a main body mechanism three (3) installed at the rear end of the main body mechanism two (2). The main body (1) includes a resistivity body (101), a through hole (102) is provided in the middle of the resistivity body (101), a vertical hole (103) is provided in the middle of the resistivity body (101) behind the through hole (102), and a through groove (104) is provided in the middle of the resistivity body (101) behind the vertical hole (103). The main body mechanism two (2) includes a resistivity body two (201), a groove (202) is provided in the middle of the resistivity body two (201), and a connecting hole (203) is provided in the middle of the groove (202). The main body three (3) includes a resistivity body three (301), a metal rod (302) is fixedly disposed in the middle of the (301), a chromium element (303) is fixedly disposed in the middle of the metal rod (302), and a nickel element (304) is fixedly disposed in the middle of the chromium element (303).

2. The 4.75-inch OTK integrated resistivity according to claim 1, characterized in that: The through holes (102) are symmetrically distributed in the middle of the resistivity body (101).

3. The 4.75-inch OTK integrated resistivity according to claim 1, characterized in that: The vertical holes (103) are symmetrically distributed in the middle of the resistivity body (101) and located on the front and back sides of the through hole (102).

4. The 4.75-inch OTK integrated resistivity according to claim 2, characterized in that: The first resistivity body (101) is a cylindrical structure, and the second resistivity body (201) is fixedly disposed at the rear end of the first resistivity body (101).

5. The 4.75-inch OTK integrated resistivity according to claim 1, characterized in that: The resistivity body three (301) is fixedly provided at the rear end of the resistivity body two (201).

6. The 4.75-inch OTK integrated resistivity according to claim 2, characterized in that: The resistivity body two (201) and resistivity body three (301) have the same structure, and the resistivity body one (101) and resistivity body two (201) have the same structure.

7. The 4.75-inch OTK integrated resistivity according to claim 3, characterized in that: The diameter of resistivity body one (101) is the same as that of resistivity body two (201), and the diameter of resistivity body three (301) is smaller than that of resistivity body two (201).

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