CONSTRUCTIVE ARRANGEMENT APPLIED IN A SURVEY TESTIMONY GUIDE

Description

1 / 5 CONSTRUCTIVE ARRANGEMENT APPLIED IN RESEARCH TESTIMONY GUIDE Technological sector of the Utility Model

[001] The present utility model belongs to the rotary drilling sector, and refers, more specifically, to a core orientation device that is capable of measuring the RPC of a drilling maneuver. State of the art

[002] Core orientation is the process by which the original position of a core sample, taken from the subsurface, is determined in order to preserve crucial geological information. To do this, a mark or line is placed on the surface of the core, usually with reference to gravity, to identify the correct spatial orientation of the sample. This procedure is essential for measuring large-scale geological features such as stratification, cross-stratification, fractures, and textures. The data obtained from these analyses are fundamental for estimating reserves and future resource exploration.

[003] There are two known pieces of equipment on the market to perform this task. The first does not require the extension of the outer tube, as is the equipment presented in this utility model. However, it requires the replacement of half of the standard head parts with manufacturer-specific parts, forcing customers to purchase components directly from them, instead of using parts widely available on the market. In addition, this equipment is not capable of measuring the parameter known as RPC (Radial Point Control). The second piece of equipment uses the standard head, as does the utility model described here. However, the disclosed tool offers some improvements compared to the one on the market, such as the ability to measure RPC, the elimination of plastic parts that weaken the structure, and additional protection for the head bearing, which increases the durability and efficiency of the system. Petition 870250057434, dated 07 / 07 / 2025, page 5 / 12 2 / 5

[004] Figure 2 shows the “standard” mounting of the drilling tool for the core sample, in the diamond rotary method, wireline system, without core orientation.

[005] Figure 3 shows the same setup, but with core orientation, using the core guide as revealed in BR202017019037-0. It is necessary to change the “standard” configuration of the drilling tool, altering its total length, which generates a change in the drilling operation and requires the operators to remove all the tooling for insertion of the external tube extension (part 9B of Figure 3), in addition to altering the total length of the internal assembly with the inclusion of the core guide (part 9A of Figure 3). Utility Model Updates

[006] In this context, the new constructive arrangement of the core guide offers a number of advantages, most notably the absence of the need to alter the total length of the drilling tool, either in its external or internal composition. The solution boils down to simply replacing an existing part in the inner tube head, which makes the process more practical and efficient. In addition, this new configuration allows measuring the RPC (Radial Point Control) of the drilling, an essential parameter to ensure that the holes follow a more precise trajectory towards the mineralized body. This helps to avoid excessive deviations that can result in significant financial losses.

[007] Unplanned deviations in the borehole trajectory can lead to increased fuel consumption, greater wear on drilling tools, increased tool friction, and premature wear of the diamond material. Therefore, the ability to accurately measure RPC substantially reduces these problems, improving operation control and drilling efficiency.

[008] In addition to measuring RPC, the equipment is entirely constructed of steel, including the area where the Bluetooth antenna is located, which increases its durability. It can also be used on the standard drilling head, without the need to extend the outer tube, and has a cover. Petition 870250057434, dated 07 / 07 / 2025, page 6 / 12 3 / 5 bearing protection, which increases its robustness by avoiding the use of plastic parts, traditionally more fragile. The guide is also capable of monitoring other drilling parameters, in addition to core orientation, and has a low production cost. Its battery has a long lifespan, with approximately 3 years of continuous operation and up to 5 years in standby, making it an efficient and economical technological solution for geological drilling operations. Description of the attached drawings

[009] In order for the present utility model to be fully understood and put into practice by any technician in this technological sector, it will be described in a clear, concise and sufficient manner, based on the attached drawings, which illustrate and support it, listed below: Figure 1 represents the exploded perspective view of the utility model's witness guide. Figure 2 represents the exploded perspective view of the "standard" drilling tool assembly for the core sample, in the diamond rotary method, wireline system, without core orientation; Figure 3 represents an exploded perspective view of the "standard" drilling tool assembly, with core orientation from a previous model; Detailed description of the Utility Model

[010] The operation is practically the same as the previous version described in BR202017019037-0, where two tools are used (one operating and the other on standby), mounted on two distinct internal tube heads, the only change is that in the revealed version a mobile device with a dedicated application is used to collect the data and not a dedicated data collector.

[011] The device consists of a cylindrical section with an external thread and an internal through hole. At the opposite end, there is a truncated cone-shaped section, with a smooth surface and a diameter larger than that of the threaded cylindrical section. The piece has a recess that limits the extent of the hole and provides an overlapping surface, facilitating the fitting and alignment of the parts. Petition 870250057434, dated 07 / 07 / 2025, page 7 / 12 4 / 5

[012] The device serves for core orientation, a process by which the original position of the core is determined. Typically, a mark or line is placed on the face or surface of the core, using gravity as a reference, obtained through a core orientation tool using accelerometer sensors. These orientations are mainly used to measure large-scale features such as stratification, cross-stratification, fractures, and textures, data that will later be incorporated into the reserve estimate for future exploration.

[013] In summary, the operation flow is as follows: Setup Step: a) Replace the standard inner tube head piece (piece 22 in Figure 1) with the guide; b) Pair the two guides via Bluetooth with the mobile device; Initializing the tool: a) In the dedicated application, click the Start guide button and wait for the “OK” signal. b) The entire inner tube (head with guide + inner tube) is inserted until it locks into the outer tube; c) The advance maneuver is performed; d) After the maneuver is complete, the rods are brought to a complete stop; e) In the dedicated application, click on Mark and wait for the “OK” confirmation; f) The inner tube is removed; g) With the inner tube on the surface and the Bluetooth connection established with the mobile device, click on Orient Sample; h) The application will display an online indication of the current position of the inner tube and another of the position marked in step e); i) The operator must rotate the inner tube until the two positions coincide; Petition 870250057434, dated 07 / 07 / 2025, page 8 / 12 5 / 5 j) With the inner tube held in this position, the physical marking is carried out on the core sample using hydrographic markers, pens or crayons, according to the preference of the operation.

[014] It is important to emphasize that the figures and descriptions provided are not intended to limit the ways in which the inventive concept now proposed can be implemented, but rather to illustrate and make understandable the conceptual innovations revealed in this solution. Thus, the descriptions and images should be interpreted in an illustrative and not limiting way, and there may be other equivalent or analogous ways of implementing the inventive concept now revealed that do not fall outside the scope of protection outlined in the proposed solution. Petition 870250057434, dated 07 / 07 / 2025, page 9 / 12

Claims

1 / 1 CLAIM 1- CONSTRUCTIONAL ARRANGEMENT APPLIED IN A DRILLING CORE GUIDE, characterized by being composed of a cylindrical section with an external thread and a through internal hole; at the opposite end, there is a truncated cone-shaped section, with a smooth surface and a diameter larger than that of the threaded cylindrical section; and it has a recess that limits the extent of the hole and forms an overlapping surface. Petition 870240110981, dated 12 / 28 / 2024, page 12 / 20

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