Electronic connections in a drill string and related systems and methods

Abstract

A downhole tool can include a tool body and a coupling region configured to couple the downhole tool to an adjacent portion of a drill string. The downhole tool can also include one or more sensors disposed on the tool body. The downhole tool can further include a connector disposed in the coupling region that is electrically connected to the one or more sensors. The connector can be configured to enable removable connection from an external device to the one or more sensors.

Description

[0001] Priority Statement

[0002] This application claims the benefit of U.S. Patent Application Serial No. 16 / 711,020, entitled “Electronic Connections in a DrillString and Related Systems and Methods,” filed on December 11, 2019. Technical Field

[0003] The embodiments disclosed herein generally relate to drilling operations. Specifically, the embodiments disclosed herein relate to electrical connections on the drill string. Background Technology

[0004] Various tools are used in oil and gas exploration and production to measure the properties of geological structures during or shortly after drilling. These tools typically include a variety of electronic devices, such as sensors, controllers, and communication devices. Many of these electronic devices are located on the bottom-of-well assembly (BHA), which operates at the distal end of the drill string. The BHA typically includes one or more drilling tools, such as drill bits, reamers, motors (e.g., mud motors), and other components such as steering mechanisms. The BHA also frequently includes logging-while-drilling (MWD) and / or logging-while-drilling (LWD) modules, which incorporate electronic components. BHAs typically operate in harsh environments with high temperatures, high pressures, and significant vibrations.

[0005] Each drilling tool in a BHA may include multiple electronic devices. The electronic devices in each drilling tool may be connected to adjacent drilling tools or components in the BHA. For example, some drilling tools and / or components in the BHA may include processors or memory storage devices configured to capture, process, and / or store data generated by sensors and / or electronics in adjacent drilling tools. Some drilling tools and / or components in the BHA may enable the connection of sensors from another drilling tool or component in the BHA to reach another component in the drill string through that drilling tool or component.

[0006] Connections between drilling tools or components in a BHA enable the transmission of information collected by downhole sensors to the BHA or other components in the drill string, providing information for adjusting control commands, data logging, trajectory adjustments, tripping decisions, and more. Incorrect or missing data can result in significant losses of time and money in associated drilling operations. Summary of the Invention

[0007] Some embodiments of this disclosure include a drilling tool. The drilling tool may include a tool body. The drilling tool may further include a coupling region configured to couple the drilling tool to an adjacent portion of a drill string. The drilling tool may also include one or more sensors disposed on the tool body. The drilling tool may further include a connector disposed in the coupling region for electrical connection to the one or more sensors. The connector may be configured to enable a removable connection from an external device to the one or more sensors.

[0008] Another embodiment of this disclosure may include a drill string. The drill string may include a drilling tool. The drilling tool may include a tool body. The drilling tool may further include a coupling region configured to couple the drilling tool to an adjacent portion of the drill string. The drilling tool may also include one or more sensors disposed within the drill string. The drilling tool may further include a connector disposed in the coupling region of the drilling tool, electrically coupled to one or more electronic devices. The drill string may also include a complementary connector disposed in an adjacent portion of the drill string. The complementary connector may be electrically coupled to a data processing device. The connector and the complementary connector may be configured to electrically couple one or more electronic devices to the data processing device.

[0009] Another embodiment of this disclosure may include a method of manufacturing a drilling tool. The method may include selecting a drilling tool blank. The method may further include securing one or more electrical devices to the drilling tool blank. The method may also include extending an electrical connector from the electrical device through the drilling tool blank to a central region of the drilling tool blank. The method may further include semi-permanently electricalally coupling the electrical connector to a connector. The method may also include positioning the connector in a coupling region of the drilling tool blank. The connector may be configured to enable a removable connection between the electrical device and another drilling tool component. Attached Figure Description

[0010] Although the specification is appended with claims that specifically point out and clearly claim protection for embodiments of the present disclosure, the various advantages of the embodiments of the present disclosure can be readily identified from the following description of certain embodiments when read in conjunction with the accompanying drawings, wherein:

[0011] Figure 1 A drilling system according to one embodiment of the present disclosure is shown;

[0012] Figure 2 A drilling tool according to one embodiment of the present disclosure is shown;

[0013] Figure 3 A connector according to one embodiment of this disclosure is shown;

[0014] Figure 4A connector according to one embodiment of this disclosure is shown;

[0015] Figure 5 A connector according to one embodiment of this disclosure is shown;

[0016] Figure 6 The coupling area of ​​a drilling tool according to one embodiment of the present disclosure is shown;

[0017] Figure 7 A cross-sectional view of a portion of the coupling region of a drilling tool according to one embodiment of the present disclosure is shown; and

[0018] Figure 8 A flowchart illustrating a method for manufacturing a drilling tool according to one embodiment of the present disclosure is shown. Detailed Implementation

[0019] The illustrations presented herein are not intended to be actual views of any particular drilling tool or its components, but are merely idealized representations used to describe exemplary embodiments. The figures are not necessarily drawn to scale.

[0020] As used herein, the term “substantially” with reference to the meaning of a given parameter means and includes satisfying a given parameter, property, or condition to the extent that a person skilled in the art would understand, while with minimal deviation, such as within acceptable manufacturing tolerances. For example, a parameter substantially satisfied could be satisfied by at least about 90%, at least about 95%, at least about 99%, or even at least about 100%.

[0021] As used herein, relational terms such as “first,” “second,” “top,” “bottom,” etc., are generally used for clarity and convenience in understanding this disclosure and the accompanying drawings, and do not imply or depend on any particular preference, orientation, or order unless the context clearly indicates otherwise.

[0022] As used herein, the term “and / or” means and includes any and all combinations of one or more associated listed items.

[0023] As used in this article, the terms "vertical" and "horizontal" refer to the orientation shown in the figure.

[0024] As used herein, the term “coupled” means and includes any operational connection, and may include connections via intermediate connectors or elements. As used herein, the term “direct coupling” means and includes a direct connection between two elements without the need for intermediate connectors or devices.

[0025] Figure 1A drilling system 100 is shown. The drilling system 100 may include a drill string 102. The drill string 102 may include multiple sections of drill tubing coupled together to form a long drill string. The front end of the drill string 102 may include a bottom hole assembly 104 (BHA). The BHA 104 may include components such as a motor 106 (e.g., a mud motor), one or more reamers 108 and / or stabilizers 110, and drilling tools 112 such as drill bits. The BHA 104 may also include electronics such as sensors 114, modules 116, and / or tool control components 118. The drill string 102 may be inserted into a borehole 120. The borehole 120 may be formed by the drilling tools 112 as the drill string 102 advances through the formation 122. The tool control components 118 may be configured to control the operation of the drilling tools 112. For example, the tool control unit 118 may include a steering component configured to change the angle of the drilling tool 112 relative to the drill string 102, thereby changing the advance direction of the drill string 102. The tool control unit 118 may be configured to receive instructions from an operator at the surface and execute actions based on those instructions. In some embodiments, control instructions may be derived from downhole within the tool control unit 118, such as in a closed-loop system.

[0026] Sensor 114 may be configured to collect information about downhole conditions, such as temperature, pressure, vibration, fluid density, fluid viscosity, cutting density, cutting size, and cutting concentration. In some embodiments, sensor 114 may be configured to collect information about the formation, such as formation composition, formation density, and formation geometry. In some embodiments, sensor 114 may be configured to collect information about the drilling tool 112, such as tool temperature, cuttings temperature, cuttings wear, weight on bit (WOB), total bit torque (TOB), drill string rotation speed (RPM), drilling fluid pressure at the drilling tool 112, and fluid flow rate at the drilling tool 112.

[0027] Information collected by sensor 114 can be processed, stored, and / or transmitted by module 116. Module 116 can be located in multiple locations within BHA 104 and along drill string 102, such as within drilling tool 112, within tool control unit 118, within reamer 108, within stabilizer 110, etc. For example, module 116 can receive information from sensor 114 in the form of raw data, such as voltage (e.g., 0-10VDC, 0-5VDC, etc.), current (e.g., 0-20mA, 4-20mA, etc.), or resistance (e.g., resistance temperature detector (RTD), thermistor, etc.). Module 116 can process the raw sensor data and transmit the data to the surface over a communication network by using a communication network protocol. The communication network may include, for example, communication lines, mud pulse telemetry, electromagnetic telemetry, wired drill pipe, etc. In some implementations, module 116 may be configured to perform calculations using raw sensor data, such as using sensor measurements like temperature and pressure to calculate the viscosity of drilling fluid, or using sensor measurements like cuttings concentration, cuttings density, WOB, and formation density to calculate the penetration rate of drilling tool 112.

[0028] In some implementations, downhole information can be transmitted to an operator at the surface or to a computing device at the surface. For example, downhole information can be provided to the operator via a display, printout, etc. In some implementations, downhole information can be transmitted to a computing device that processes the information and provides it to the operator in various formats suitable for the operator. For example, measurements outside the range can be provided as alarms, warning lights, or alerts; some information can be provided in the form of a display, spreadsheet, etc., while other information that is only useful until further calculations are performed can be processed, and the results of the calculations can be provided in the form of a display, printout, spreadsheet, etc.

[0029] Because drill string 102 comprises multiple components, the electronics in each component must be coupled to or pass through adjacent components in the drill string. As the number of electronics in drill string 102 increases, the number of connections between each component of drill string 102 also increases. Due to the extreme downhole environment, the connections between components must be robust enough to withstand downhole vibration, temperature, and pressure. Different electronics may be required in each component of drill string 102 during different operations. Therefore, unique connections may be required each time a component is connected, which can lead to time-consuming processes for connecting or replacing worn components. Universal connections within the body of the components of drill string 102 can reduce the time required to connect, disconnect, and / or replace components of drill string 102. Universal connections also reduce the complexity of replacing components of drill string 102, allowing the process to be performed by less skilled technicians. In some embodiments, universal connections can further increase the reliability of connections between electronics in each component of drill string 102.

[0030] Figure 2 An embodiment of the drilling tool 200 is shown. Figure 2 The drilling tool 200 includes a fixed-cutting drill bit; however, the drilling tool 200 may include other drilling tools, such as roller cone bits, hybrid bits, core bits, impact bits, bicentric bits, reamers (e.g., expansion reamers, fixed-wing reamers, center-column reamers, etc.), casing shoes, stabilizers, etc. The drilling tool 200 may include a coupling region 202 and a tool body 204.

[0031] The tool body 204 may include one or more cutting elements 206 arranged around the tool body 204. The cutting elements 206 may be configured to interact with the formation. The cutting elements 206 may include, for example, a polycrystalline composite sheet (also referred to in the art as a polycrystalline stage) in the form of a layer of hard polycrystalline material, disposed on a support substrate (e.g., formed on or subsequently attached to a support substrate), with a mating surface between them. In some embodiments, the cutting elements 206 may include polycrystalline diamond composite (PDC) cutting elements, each comprising a volume of polycrystalline diamond material disposed on a ceramic-metal composite substrate, as is known in the art. Although Figure 2 The cutting element 206 in the illustrated embodiment is cylindrical or disc-shaped, but it can have any desired shape, such as a dome, cone, chisel, etc. In operation, the drilling tool 200 can rotate about its central axis. As the drilling tool 200 rotates under the applied WOB (Whiplash Obstruction), the cutting element 206 engages the subsurface formation, exceeding its compressive strength and penetrating it to remove formation material during shearing operations.

[0032] The tool body 204 may have one or more sensors 208 disposed within the tool body 204. The sensors 208 may be configured to detect downhole characteristics such as temperature, pressure, fluid flow rate, drilling fluid characteristics (e.g., composition, viscosity, temperature, pressure, etc.), formation properties (e.g., composition, density, strength, elasticity, etc.), operating parameters (e.g., weight on bit (WOB), rotational speed, bit torque, direction, orientation, etc.), and tool characteristics (e.g., tool wear, cutting tool wear, tool temperature, vibration, etc.). In some embodiments, the sensors 208 may be located on the surface of the tool body 204. In some embodiments, the sensors 208 may be located within the tool body 204, such as within a cavity in the tool body 204. In some embodiments, the sensors 208 may be partially disposed within the tool body 204, such that a portion of the sensor 208 is exposed and another portion of the sensor 208 is isolated from the downhole environment through the tool body 204. In some embodiments, the tool body 204 may include one or more modules configured to process raw data from the sensors 208.

[0033] Sensor 208 may include a wired connection 210. In some embodiments, the wired connection 210 may be configured to provide power to sensor 208. In some embodiments, the wired connection 210 may be configured to send and / or receive data such as sensor readings, commands, etc., to and / or from sensor 208. For example, some sensors 208 may be passive sensors (e.g., resistance-based sensors, passive sensors, capacitive sensors, etc.) configured to adjust and / or generate signals based on detected characteristics. In some embodiments, some sensors 208 may require an excitation voltage to generate signals from sensor 208. In another example, some sensors 208 may include a microprocessor and / or memory configured to process raw data and provide processed signals via wired connection 210.

[0034] In some implementations, the wired connection 210 may include a protective cover (e.g., a sheath, conduit, etc.). For example, the wired connection 210 may be a bundle of individual wires passing through the tool body 204 inside the sheath or conduit. The sheath or conduit may provide additional protection for the wired connection 210 from downhole environmental factors such as temperature, pressure, vibration, etc.

[0035] The wired connection 210 can pass through the internal channel 212 in the tool body 204 to the central region of the tool body 204. In some embodiments, the internal channel 212 may be formed into the tool body 204 when the tool body 204 is formed, such as during a molding process, casting process, forging process, etc. In some embodiments, the internal channel 212 may be formed into the tool body 204 after an initial forming process. For example, the internal channel 212 may be drilled or machined into the tool body 204. In some embodiments, the internal channel 212 may be configured to receive the wired connection 210 from a plurality of sensors 208. In some embodiments, the internal channel 212 may include an insert 214 configured to provide a seal between the wired connection 210 and the internal channel 212. In some embodiments, the insert 214 may be configured to individually receive the wired connection 210 of each sensor 208 as sets of wires in a jacket or in separate conduits.

[0036] The wired connection 210 can access the coupling area 202 of the drilling tool 200 through the central region of the tool body 204. The coupling area 202 of the drilling tool 200 can be configured to couple the drilling tool 200 to adjacent components of the BHA or drill string. For example, the coupling area 202 may include threaded components such as American Petroleum Institute (API) threaded connections, rods, couplers, threaded joints, connecting pipes, etc. In some embodiments, the coupling area 202 may include features configured to couple the drilling tool 200 to adjacent components via alternative coupling mechanisms such as pressure fittings, quick-connect fittings, flange fittings, etc.

[0037] Wired connection 210 can be combined with other wired connections 210 from other sensors 208 of the drilling tool 200 to form a centrally positioned tool line 216. Tool line 216 can be directly coupled to connector 218 in coupling region 202. For example, each individual wire in tool line 216 can be coupled to an individual terminal connector 220 in connector 218. In some embodiments, terminal connector 220 can be a semi-permanent connector, such as a welded connector, brazed connector, stamped connector, threaded terminal connector, post connector, lug connector, pressure connector (e.g., pressure fitting, crimp connector, spring clip connector, etc.), epoxy connector, magnetic connector, etc.

[0038] Connector 218 may be configured to be disposed within coupling area 202 of drilling tool 200. In some embodiments, connector 218 and tool line 216 may be configured such that connector 218 can be removed from coupling area 202 of drilling tool 200 a distance sufficient to couple / discouple tool line 216 from connector 218. For example, during assembly, tool line 216 may be coupled to connector 218, wherein connector 218 is removed from coupling area 202 of drilling tool 200. In some embodiments, an operator may similarly remove connector 218 from coupling area 202 of drilling tool 200 for troubleshooting and / or replacement of one or more sensors 208 in tool body 204.

[0039] In some embodiments, connector 218 may include integrated electronics 222. For example, connector 218 may include local sensors such as temperature sensors, thermocouples, vibration sensors, magnetometers, accelerometers, gyroscopes, etc. In some embodiments, connector 218 may include storage devices such as data storage devices (e.g., memory) or power storage devices (e.g., batteries, rechargeable battery packs, capacitors, etc.). In some embodiments, connector 218 may include a wireless transmitter / receiver or antenna. For example, drilling tool 200 may be configured to communicate wirelessly with another part of the drill string via radio waves, etc.

[0040] Connector 218 may be configured to enable a removable connection with adjacent connector 224. For example, the removable connection may include a plug-and-socket connection, a pin connection, a plug-and-socket connection, a prong-and-socket connection, etc. In some embodiments, connector 218 may be a concave connector (e.g., a socket, terminal, or other opening) configured to receive a convex connector (e.g., a plug, pin, prong, etc.) of adjacent connector 224. In some embodiments, connector 218 may be a convex connector configured to be received in a concave connector of adjacent connector 224. In some embodiments, each of connector 218 and adjacent connector 224 may include a number of convex connectors and a number of concave connectors. For example, the concave and convex connectors may be configured to secure the connection between connector 218 and adjacent connector 224 such that connector 218 and adjacent connector 224 can only be connected in one orientation. In some embodiments, connector 218 and adjacent connector 224 may include other positioning features. For example, connector 218 and adjacent connector 224 may include locating pins configured to restrict the connection between connector 218 and adjacent connector 224, such that connector 218 and adjacent connector 224 can only be connected in one orientation. In some embodiments, connector 218 and adjacent connector 224 may include external features such as keys and complementary trenches configured to restrict the connection between connector 218 and adjacent connector 224, such that connector 218 and adjacent connector 224 can only be connected in one orientation.

[0041] Adjacent connector 224 may include a connecting flange 230. The connecting flange 230 may be configured to directly engage with connector 218. For example, the connecting flange 230 may include one or more connectors, such as sockets or pins. Adjacent connector 224 may also include a base 232 configured to pass through connector 218. For example, in some embodiments, connector 218 may have an annular shape such that base 232 can pass through a central region of connector 218.

[0042] Connector 218 and adjacent connector 224 may include one or more seals 226, 228, such as O-rings, configured to substantially prevent fluid from entering the connection between connector 218 and adjacent connector 224. For example, adjacent connector 224 may include an outer seal 226 and an inner seal 228 configured to provide a liquid seal between adjacent connector 224 and connector 218, and a seal between adjacent connector 224 and coupling area 202 of drilling tool 200. In some embodiments, one or more of seals 226, 228 may include resilient materials such as polytetrafluoroethylene (PTFE), ethylene propylene diene monomer (EPDM), silicone rubber, polychloroprene (e.g., chloroprene rubber or polycarbonate rubber), acrylonitrile butadiene rubber (e.g., NBR, Buna-N, or nitrile rubber), etc.

[0043] For example, Figure 3 One embodiment of connector 300 is shown. Connector 300 may be substantially annular in shape, thus forming a ring. Connector 300 may include one or more sockets 302 arranged around a top surface 306 of connector 300. Sockets 302 may be configured to receive connecting pins from a complementary connector. In some embodiments, sockets 302 may be arranged in a single annular ring around the top surface 306 of connector 300.

[0044] In some embodiments, the sockets 302 may be spaced substantially uniformly around the top surface 306 of the connector 300. For example, the displacement angle 308 between two adjacent sockets 302 may be substantially the same as the displacement angle 308 between two different adjacent sockets 302. The displacement angle 308 may be between about 1 degree and about 90 degrees, such as between about 1 degree and about 30 degrees, between about 2 degrees and about 20 degrees, or between about 2 degrees and about 10 degrees.

[0045] Connector 300 may include one or more apertures 304 (e.g., wire channels) extending from the lower surface 310 of connector 300. Apertures 304 may be configured to access tool line 216 ( Figure 2 It receives one or more wires. For example, orifice 304 may be configured to accommodate one or more wires such that one or more wires enter connector 300 in the vicinity of where they will be coupled to connector 300. In some embodiments, orifice 304 may be configured to provide a passage 212 from the internal passage of drilling tool 200. Figure 2 ) to the protected channel of connector 300.

[0046] In some embodiments, connector 300 may include up to the same number of orifices 304 as the associated electronics in an associated drilling tool. For example, each orifice 304 may be associated with a separate electronic device. In some embodiments, each orifice 304 may be configured to receive wiring from multiple electronic devices. In some embodiments, orifices 304 may be associated with connection points in connector 300 rather than individual electronic devices.

[0047] In some implementations, connector 300 may be configured to receive specific types of connections in specific areas. Dividing connector 300 into specific areas allows the connector to be substantially universal, enabling a single connector 300 to be integrated into multiple different drilling tools without any major modifications. Similarly, universal connectors allow the use of universal complementary connectors in adjacent components of a drill string or BHA, eliminating the need for wiring replacement when changing drilling tools or components. Specific areas may include, for example, power buses, reference buses (e.g., neutral voltage, ground voltage, reference voltage, etc.), specific types of signals (such as DC voltage signals (e.g., 0-5VDC, 0-10VDC, etc.), current signals (e.g., 0-20mA, 4-20mA, etc.), resistance signals (e.g., resistance temperature detectors (RTDs), etc.), and communication signals (e.g., network communication). For example, one port 304 may be configured to receive only power connections, and another port 304 may be configured to receive only specific types of signals (e.g., DC signals, current signals, resistance signals, etc.).

[0048] In some embodiments, connector 300 may include features configured to secure connector 300 such that complementary connectors can be connected to connector 300 in only one unique manner. Secure connector 300 allows two substantially universal connectors to be connected in the same manner, regardless of what the drilling tool is connected to, such that when connector 300 is divided into specific areas, complementary connectors can be similarly divided into specific areas and always connected to mating areas in connector 300.

[0049] In some implementations, connector 300 may include identification features. For example, one of the ports 302 may be configured to provide a signal to a processor coupled via a complementary connector that identifies the configuration of the drilling tool 200 associated with connector 300 and the sensors 208 within the drilling tool 200, enabling the processor to correctly translate the data provided via connector 300.

[0050] Connector 300 may be encapsulated in and / or formed of an insulating material. For example, connector 300 may be formed of a polymer material, such as polyethylene, polyvinyl chloride, polytetrafluoroethylene (PTFE), etc. In some embodiments, connector 300 may be formed of a rubber material, such as ethylene propylene diene monomer (EPDM), silicone rubber, polychloroprene (e.g., chloroprene rubber or polycarbonate rubber), acrylonitrile butadiene rubber (e.g., NBR, Buna-N, or nitrile rubber), etc.

[0051] Figure 4 An embodiment of a connector 300 including a key socket 402 is shown. The key socket 402 may be positioned on the top surface 306 of the connector 300 such that the distance between the key socket 402 and adjacent sockets 302 is different from the distance between other sockets 302. For example, as Figure 4 As shown, key socket 402 can be positioned substantially closer to adjacent socket 302, such that the complementary connector will similarly require a pin to be positioned substantially closer to the adjacent pin for successful connection to connector 300. In some embodiments, instead of including key socket 402, one socket in socket 302 may be omitted, such that the distance between two adjacent sockets 302 is twice the distance between all other adjacent sockets 302. Similarly, this may require the complementary connector to remove a pin to be able to successfully connect to connector 300.

[0052] In some embodiments, key features may be formed in the side surfaces of connector 300, such as the inner surface 312 or the outer surface 314 of connector 300. For example, at least one of the inner surface 312 or the outer surface 314 may include a vertical groove. A complementary connector may include complementary ridges or protrusions configured to receive in grooves formed in connector 300. In some embodiments, at least one of the inner surface 312 and the outer surface 314 may include substantially vertical ridges, and the complementary connector may include complementary grooves configured to receive ridges formed in connector 300.

[0053] Figure 5 One embodiment of connector 300 is shown. Connector 300 may include a plurality of sockets 302 arranged circumferentially around connector 300 in a top surface 306 of connector 300. In some embodiments, sockets 302 may be arranged in a plurality of concentric rings. For example, sockets 302 may be arranged in an outer ring 502 and an inner ring 504. In some embodiments, sockets 302 in the outer ring 502 may be located at substantially the same radial position as sockets 302 in the inner ring 504, such as... Figure 5 As shown. In some embodiments, the socket 302 in the outer ring 502 may be radially offset from the socket 302 in the inner ring 504.

[0054] In some embodiments, one or more of the outer ring 502 and the inner ring 504 of the socket 302 may include a key feature 506. For example... Figure 5 As shown, when one or more sockets 302 of the outer ring 502 or inner ring 504 are omitted, a key feature 506 can be formed such that the distance between two adjacent sockets 302 is twice the distance between other adjacent sockets 302. As described above, the key feature 506 may require the complementary connector to include a similar discontinuity in the pin so that the complementary connector can be successfully connected to the connector 300.

[0055] Figure 6 A close-up view of the coupling region 202 of the drilling tool 200 is shown. The coupling region 202 may include a fluid passage 602 configured to allow drilling fluid from the drill string to pass through the drilling tool 200. The coupling region 202 may further include a cavity 604 with a diameter substantially larger than the fluid passage 602. The cavity 604 may be configured to receive a connector 300. For example, an outer wall 606 may define a diameter of the cavity 604 that is larger than the diameter of the connector 300, such that the connector 300 can be disposed within the cavity 604 of the coupling region 202.

[0056] Coupling region 202 may include a receiver 608 within cavity 604 configured to receive connector 300. Receiver 608 may have an annular shape complementary to the connector 300 defined between outer wall 606 and receiver wall 610 of cavity 604. For example, receiver wall 610 may be positioned at a distance from outer wall 606 substantially the same as the radial thickness of connector 300, such that connector 300 can be received between outer wall 606 and receiver wall 610 in receiver 608. Receiver wall 610 may substantially isolate receiver 608 and connector 300 from fluid passage 602. Receiver wall 610 may extend to recessed flange 612. Recessed flange 612 may extend radially inward across the distance between receiver wall 610 and fluid passage 602. In some embodiments, connector 300 may be configured to form a seal between connector 300 and receiver 608, such that the seal substantially prevents fluid from entering internal passage 212 and / or damaging electronic components in connector 300 and other electronic devices in tool body 204.

[0057] Now for reference Figure 2 and Figure 6Adjacent connectors 224 may be configured to be disposed within cavity 604. For example, outer seal 226 may be configured to abut outer wall 606 to form a seal between outer wall 606 and adjacent connector 224. Inner seal 228 may be configured to abut receiver wall 610 to form a seal between receiver wall 610 and adjacent connector 224. Base 232 may be configured to abut recess flange 612, and connecting flange 230 may be configured to abut top surface 306 of connector 300. In some embodiments, connecting flange 230 may include one or more pins configured to engage (e.g., be received therein) a socket 302 in top surface 306 of connector 300.

[0058] Figure 7 A cross-sectional view of a portion of the coupling region 202 of a drilling tool 200 is shown. The coupling region 202 may include a cavity 604 defined within the coupling region 202. The cavity 604 may be defined by an outer wall 606. The cavity 604 may include a recessed portion 702. The recessed portion 702 may be defined by a receiver wall 610 and a recessed flange 612, such that the diameter of the recessed portion 702 is substantially smaller than that of the cavity 604.

[0059] Cavity 604 may also include receiver 608 configured to receive connector 300. Figures 3 to 6 Receiver 608 may be defined between outer wall 606 and receiver wall 610. For example, receiver 608 may be defined between outer wall 606 and receiver surface 706 of receiver wall 610, and recessed portion 702 may be defined by recessed surface 704 of receiver wall 610 opposite to receiver surface 706. Receiver 608 may have a connection with connector 300. Figure 3 Complementary shapes. For example, the distance between the outer wall 606 and the receiver surface 706 of the receiver wall 610 can be the same as the distance between the outer surface 314 and the connector 300. Figure 3 The distances between the inner surfaces 312 of the outer wall 606 and the receiver wall 610 are substantially the same, so that the connector 300 can be fitted between the outer wall 606 and the receiver wall 610.

[0060] The coupling area 202 may include the tool body 204 extending from the coupling area 202 to the drilling tool 200. Figure 2 One or more internal channels 212. Internal channels 212 may be configured to receive line 708 between connector 300 and tool body 204. In some embodiments, internal channels 212 may be configured to receive additional electronics, such as thermocouples, temperature sensors, pressure sensors, vibration sensors, antennas, etc., directly coupled to connector 300. In some embodiments, internal channels 212 may be configured to receive data from connector 300 (…). Figure 3An aperture 304 extends from the lower surface 310 of the receiver 608. For example, the diameter of the internal channel 212 may be substantially the same as or slightly larger than the outer diameter of the aperture 304, such that the aperture 304 can be at least partially disposed from the receiver 608 into the internal channel 212. Lines 708 and / or additional electronics may access the internal channel 212 from the connector 300 through the corresponding aperture 304.

[0061] Figure 8 The method for manufacturing the 800 drilling tool is shown. See also [reference needed]. Figures 2 to 7 In action 802, the drilling tool may be selected from a collection of tool blanks. The tool blanks may include a drilling tool body formed of a particulate composite material or a metallic material such as steel. The tool blanks may be formed by molding, forging, and / or machining processes. The tool blanks may undergo additional machining processes. For example, recesses configured to accommodate various electrical devices such as sensors, processors, controllers, etc., may be machined in the tool blank. In some embodiments, recesses configured to receive cutting elements may be machined on the surface of the tool body. Further machining may include removing material to form one or more internal channels 212 through the tool blank. For example, internal channels 212 formed in the tool blank may be configured to receive wiring from electronic devices. In some embodiments, a cavity 604 may be machined in the coupling region 202 of the tool blank. The cavity may be configured to include a receiver 608 for receiving a connector 300.

[0062] In action 804, electrical devices such as sensors, processors, and controllers may be fixed to the tool blank. In some embodiments, the electrical devices may be fixed in recesses formed in the surface of the tool blank. In some embodiments, the electrical devices may be disposed in one or more cavities formed in the body of the tool blank. In some embodiments, the electrical devices may be disposed in other elements that may be separately attached to the tool blank, such as cutting elements, nozzles, etc. The electrical devices may include electrical connectors extending from the electrical devices, such as wires, cables, optical fibers, etc., and the electrical connectors are configured to connect the electrical devices to another electronic device, such as a module, processor, memory device, power supply, etc.

[0063] In action 806, the electrical connector may extend through the tool blank. For example, the electrical connector may be inserted into an internal channel 212 formed in the tool blank during machining. In some embodiments, the electrical connector may be inserted into a protective sleeve or conduit that may be disposed on or within the tool blank. The channel in the tool blank allows the electrical connector to access from the electrical device to a central region of the tool blank. For example, multiple internal channels 212 may converge into one or more main internal channels 212 extending in the axial direction of the tool blank. The main internal channels 212 may be configured to correspond to one or more orifices 304 of the connector 300.

[0064] In action 808, the electrical connector may be coupled to connector 300. For example, the electrical connector may be inserted into connector 300 through orifice 304. Subsequently, the electrical connector may be coupled to connector 300 at least semi-permanently. For example, the electrical connector may be coupled to connector 300 through various connections such as soldered connection, brazed connection, stamped connection, threaded terminal connection, terminal block connection, lug connection, pressurized connection, etc., or combinations of multiple different connections.

[0065] In action 810, connector 300 may be disposed within cavity 604 of drilling tool 200. In some embodiments, the electrical connection allows connector 300 to be removed from cavity 604 of drilling tool 200 a sufficient distance to allow an operator to perform connection, disconnection, repair, and / or troubleshooting of connection from outside cavity 604 of drilling tool 200. In some embodiments, connector 300 may be configured to allow an operator to perform connection, disconnection, repair, and / or troubleshooting of connection without removing connector 300 from cavity 604 of drilling tool 200. As described above, connector 300 may be configured to allow removable connection with adjacent connector 224.

[0066] The embodiments disclosed herein enable field operators to quickly change drilling tools without the complexity of disconnecting and / or connecting all the wires between the drilling tool and adjacent components. The universal connector allows operators to connect the drilling tool to adjacent components via a single connection. This simplicity of a single connection reduces the amount of time required to change drilling tools. The ease of connection also allows less skilled technicians to perform what would otherwise be complex tasks, thereby reducing operating costs.

[0067] The embodiments disclosed herein also enable the completion and / or testing of all complex circuitry for sensors and / or electronic devices during the manufacturing process, eliminating the need for complex circuitry in the field. The conditions during the manufacturing process allow for more efficient completion of complex circuitry.

[0068] Non-limiting exemplary embodiments may include the following:

[0069] Implementation Scheme 1: A drilling tool comprising: a body; a coupling region configured to couple the drilling tool to an adjacent portion of a drill string; a fluid channel defined within the coupling region; one or more sensors disposed on the tool body; and a connector including a ring concentrically disposed in the coupling region around the fluid channel, wherein the connector is electrically connected to the one or more sensors and is configured to enable a removable connection from an external device to the one or more sensors.

[0070] Implementation Scheme 2: The drilling tool according to Implementation Scheme 1, wherein the connector includes insulating material.

[0071] Implementation Scheme 3: The drilling tool according to any one of Implementation Scheme 1 or 2, wherein the connector includes one or more connection orifices arranged in a ring around a ring.

[0072] Implementation Scheme 4: The drilling tool according to any one of Implementation Schemes 1 to 3, wherein the connector includes one or more wire channels.

[0073] Implementation Scheme 5: The drilling tool according to Implementation Scheme 4, wherein one or more sensors include wires disposed in one or more wire channels.

[0074] Implementation Scheme 6: The drilling tool according to any one of Implementation Schemes 1 to 5, wherein the connector includes electronic devices directly coupled to the connector.

[0075] Implementation Scheme 7: The drilling tool according to Implementation Scheme 6, wherein the electronic device includes a storage device.

[0076] Implementation Scheme 8: The drilling tool according to any one of Implementation Scheme 6 or 7, wherein the electronic device includes a local sensor.

[0077] Implementation Scheme 9: A drilling tool according to any one of Implementation Schemes 1 to 8, the drilling tool further comprising a cavity in the coupling region of the drilling tool, wherein the cavity includes a receiver having a diameter larger than that of the fluid channel.

[0078] Implementation Scheme 10: The drilling tool according to Implementation Scheme 9, wherein the receiver is configured to receive the connector, and the receiver is substantially isolated from the fluid channel by the receiver wall.

[0079] Implementation Scheme 11: A drill string comprising: a drilling tool, the drilling tool including: a tool body; a coupling region configured to couple the drilling tool to an adjacent portion of the drill string; one or more electronic devices disposed in the drill string; and a connector including a ring disposed in the coupling region of the drilling tool that is electrically coupled to the one or more electronic devices; and a complementary connector disposed in an adjacent portion of the drill string, wherein the complementary connector is electrically coupled to a data processing device; wherein the connector and the complementary connector are configured to electrically couple the one or more electronic devices to the data processing device.

[0080] Implementation Scheme 12: The drill string according to Implementation Scheme 11; wherein at least one of the connector and the complementary connector includes a convex connector, and the other of the connector and the complementary connector includes a concave connector.

[0081] Implementation Scheme 13: A drill string according to any one of Implementation Scheme 11 or 12; wherein the connector includes a key feature.

[0082] Implementation Scheme 14: The drill string according to Implementation Scheme 13; wherein the connector includes a plurality of terminals positioned at substantially equal intervals.

[0083] Implementation Scheme 15: Drill string according to Implementation Scheme 14; wherein the key feature includes omitted terminals.

[0084] Implementation Scheme 16: A drill string according to any one of Implementation Schemes 14 or 15; wherein the key feature includes one or more terminals, the one or more terminals being positioned at a distance from adjacent terminals that is different from substantially equal intervals between the plurality of terminals.

[0085] Implementation Scheme 17: A drill string according to any one of Implementation Schemes 11 to 16; wherein the connector is configured to form a seal between the connector and the coupling area of ​​the drilling tool.

[0086] Implementation Scheme 18: A method of manufacturing a drilling tool, the method comprising: selecting a drilling tool blank; securing one or more electrical devices to the drilling tool blank; extending an electrical connector from the electrical devices through the drilling tool blank to a central region of the drilling tool blank; semi-permanently electrically coupling the electrical connector to a ring connector; and positioning the ring connector in a coupling region of the drilling tool blank, wherein the ring connector is configured to enable a removable connection between the electrical devices and another drilling tool component.

[0087] Implementation Scheme 19: The method according to Implementation Scheme 18 further includes machining one or more channels through the drilling tool, wherein the one or more channels are configured to allow electrical connections to pass through the drilling tool blank and enter the central region of the drilling tool blank.

[0088] Implementation Scheme 20: The method according to any one of Implementation Schemes 18 or 19, wherein semi-permanently coupling the electrical connector to the ring connector includes one or more of the following: welding, brazing, attachment by stamping connection, attachment by threaded terminal, attachment by terminal block, attachment by lug, and attachment by pressurization connection.

[0089] The embodiments of this disclosure described above and illustrated in the accompanying drawings do not limit the scope of the invention, as these embodiments are merely examples of embodiments of the invention, the scope of which is defined by the appended claims and their legal equivalents. Any equivalent embodiments are intended to fall within the scope of this disclosure. In fact, various modifications of this disclosure beyond those shown and described herein (such as alternative useful combinations of the described elements) will become apparent to those skilled in the art based on the description. Such modifications and embodiments are also intended to fall within the scope of the appended claims and their legal equivalents.

Claims

1. A drilling tool, the drilling tool comprising: Tool body; A coupling region, the coupling region being configured to couple the drilling tool to an adjacent portion of the drill string; A fluid channel defined within the coupling region; One or more sensors, wherein the one or more sensors are disposed on the tool body; and Connector, the connector comprising: A ring concentrically arranged in the coupling region surrounding the fluid channel; Two or more sockets are disposed in the top surface of the ring and are evenly spaced circumferentially around the ring; and A key socket is disposed in the top surface of the ring, the key socket being positioned such that the distance between the key socket and an adjacent socket is different from the distance between two or more uniformly spaced sockets; The connector is electrically connected to the one or more sensors, and the connector is configured to enable a removable connection from an external device to the one or more sensors. A recessed portion, formed in the coupling region of the tool body and facing the fluid channel, is configured to receive a portion of a complementary connector and align the complementary connector and the connector.

2. The drilling tool according to claim 1, wherein the connector comprises insulating material.

3. The drilling tool of claim 1, wherein the connector includes one or more connection orifices arranged circumferentially around the ring.

4. The drilling tool of claim 1, wherein the connector comprises one or more wire channels.

5. The drilling tool of claim 4, wherein the one or more sensors include wires disposed in the one or more wire channels.

6. The drilling tool of claim 1, wherein the connector includes electronics directly coupled to the connector.

7. The drilling tool according to claim 6, wherein the electronic device includes a storage device.

8. The drilling tool of claim 6, wherein the electronic device includes a local sensor.

9. The drilling tool of claim 1, further comprising a cavity in the coupling region of the drilling tool, wherein the cavity includes a receiver having a diameter larger than that of the fluid channel.

10. The drilling tool of claim 9, wherein the receiver is configured to receive the connector, and the receiver is substantially isolated from the fluid channel by the receiver wall.

11. A drill string, the drill string comprising: Drilling tools, the drilling tools comprising: Tool body; A coupling region configured to couple the drilling tool to an adjacent portion of the drill string; One or more electronic devices, said one or more electronic devices being disposed in the drill string; and A connector comprising a ring electrically coupled to the one or more electronic devices disposed in the coupling region of the drilling tool, wherein the connector includes a plurality of terminals positioned at substantially equal intervals; and A complementary connector disposed in the adjacent portion of the drill string, wherein the complementary connector is electrically coupled to a data processing device; and The connector includes a key feature portion comprising: one or more terminals positioned at a distance from adjacent terminals that differs from substantially equal intervals between the plurality of terminals; or omitted terminals such that the distance between two adjacent terminals is twice the distance between all other adjacent terminals; The connector and the complementary connector are configured to electrically couple the one or more electronic devices to the data processing device.

12. The drill string of claim 11, wherein at least one of the connector and the complementary connector comprises a convex connector, and the other of the connector and the complementary connector comprises a concave connector.

13. The drill string of claim 11, wherein the connector is configured to form a seal between the connector and the coupling area of ​​the drilling tool.

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