• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A method for controlling an electric actuator is disclosed. The method includes driving an electrical actuator at a current level during each of a plurality of activation attempts and determining whether the electric actuator has been activated or not during each of the plurality of activation attempts. A method of a number of failed attempts to activate, counting a number of successful activation attempts. In addition, the method may include adjusting the current level based on at least one of a number of failed activation attempts and the number of successful activation attempts, and the training of the electric actuator at a current level adjusted.
    公开号:FR3027694A1
    申请号:FR1558871
    申请日:2015-09-21
    公开日:2016-04-29
    发明作者:Clint Paul Lozinsky；Jonathan Peter Zacharko；David Yan Lap Wong
    申请人:Halliburton Energy Services Inc；
    IPC主号:
    专利说明:

    [0001] BACKGROUND OF THE INVENTION The present disclosure generally relates to well drilling tools and more particularly to the control of the current delivered to an electric actuator in a well drilling tool.
    [0002] HISTORY Various types of tools are used to dig boreholes in underground formations for the recovery of hydrocarbons such as oil and gas below the surface. Examples of such tools include rotary drill bits. A wellbore assembly may include a drill string, an electrically operated clutch assembly, and a drive shaft coupled to a drill bit. The electrically operated clutch assembly can receive power from a battery placed in the bottom of the well. When electrically activated, the clutch assembly can transform the mechanical current from the rotating components within the drill string into servo power. The power steering current may bend the drive shaft and thereby direct the drill bit in a desired direction. BRIEF DESCRIPTION OF THE FIGURES For a more complete understanding of the present disclosure and its features and advantages, reference is now made to the following description, taken in conjunction with the accompanying drawings, in which: FIGURE 1 illustrates an elevational view an exemplary embodiment of a drilling system; FIGURE 2 illustrates a flowchart of a system for controlling an electric actuator; FIGURE 3 illustrates a flowchart of an example of a method for controlling an electric actuator; and FIGURE 4 illustrates a flowchart of an example of a method for controlling an electric actuator.
    [0003] DETAILED DESCRIPTION A system for controlling current to an electrical actuator, such as an electrically operated clutch in a wellbore assembly, is disclosed. The system optimizes the current that can be delivered to an electric actuator to minimize the total energy used by the electric actuator. Thus, the life of a battery configured to provide power to an electric actuator can be extended. The system can also adapt to changing conditions over time. For example, the amount of current that would be required to drive an electric actuator, for example, an electrically operated clutch, can vary over time depending on factors such as wear and / or environmental conditions such as temperature. and the ambient pressure. The system can self-calibrate over time so that the current supplied to the electric actuator is always optimized for the given conditions. FIGURE 1 illustrates an elevational view of an exemplary embodiment of a drilling system 100. The drilling system 100 may comprise the well surface or the well site 106. Various types of drilling equipment such as a turntable, drilling fluid pumps, and drilling fluid reservoirs (not specifically illustrated) may be at the well surface or well site 106. For example, the Well 106 may include a drilling platform 102 that may have various features and properties associated with a "ground drilling platform". However, well drilling tools incorporating the teachings of the present disclosure can be used satisfactorily with drilling equipment found on offshore platforms, drillships, semi-submersibles and drill barges ( not particularly illustrated). The drilling system 100 may also include a drill string 103 associated with a drill bit 101 that may be used to dig a wide variety of drill holes or holes such as generally vertical drill holes 114a or a borehole. generally horizontal 114b or any combination thereof. Various directional drilling techniques and associated downhole assembly (BHA) components 120 of the drill string 103 may be used to dig a horizontal borehole 114b. For example, lateral forces may be applied to the starting location 113 near the BHA 120 to form a generally horizontal borehole 114b extending from a generally vertical borehole 114a. The term "directional drilling" can be used to describe the drilling of a borehole or portions of a borehole that extends at a desired angle or angles from the vertical. The desired angles may be greater than the normal variations associated with vertical boreholes. Directional drilling can also be described as drilling a deviated drill hole from the vertical. The term "horizontal drilling" can be used to describe drilling in a direction approximately ninety degrees (90 °) from the vertical. A BHA 120 can be formed from a wide variety of components configured to form a well bore 114. For example, components within the BHA 120 can include, without limitation, drill bits (e.g. , a drill bit 101), a core drill, drill collars, rotary orientation tools, directional drilling tools, hole drilling motors, reamers, wideners or hole stabilizers. The number and types of components included in the BHA 120 may depend on the predicted hole drilling conditions and the type of borehole that can be drilled by the drill string 103 and the rotary drill bit 101. The BHA 120 may also include various types of well logging tools (not specifically illustrated) and other drilling tools associated with directional drilling of a borehole. Examples of logging tools and / or directional drilling tools may include, but are not limited to, acoustic, neutron, gamma ray, density, photoelectric, nuclear magnetic resonance, rotary orientation and / or dyeing tools. other commercially available drilling tools. A borehole 114 may in part be defined by a casing head 110 which extends from a well surface 106 to a selected drill location. Parts of the borehole 114, shown in FIGURE 1, that do not have a casing head 110 may be described as "open holes". Various types of drilling fluid may be pumped from the surface of the well 106 through a drill string 103 to the connected drill bit 101. The drilling fluids may be oriented to flow from the drill string 103 to respective nozzles (illustrated as nozzles 156 in FIGURE 2) passing through the rotary drill bit 101. The drilling fluid may be recirculated to the nozzle. Well surface 106 through the ring 108 defined in part by an outer diameter 112 of the drill string 103 is an inner diameter 118 of the wellbore 114a. The inner diameter 118 may be called the "side wall" of a borehole 114a. The ring 108 may also be defined by an outer diameter 112 of the drill string 103 and an inner diameter 111 of the casing head 110. The ring of an open hole 116 may be defined as a side wall 118 and An outer diameter 112. The drilling system 100 may also include a rotary drill bit ("drill bit") 101. The drill bit 101 may include one or more blades 126 that can be placed outwardly from outer portions of the rotating bit body 124 of a drill bit 101. The blades 126 may be any type of suitable projection extending outwardly from the rotating bit body 124. The drill bit 101 may rotate by relative to an axis of rotation of the bit 104 in a direction defined by an orientation arrow 105. The blades 126 may comprise one or more cutting elements 128 placed outwardly from the external parts of the blade. 126. The blades 126 may also include one or more cutting control depths (not particularly illustrated) configured to control the cutting depth of the cutting elements 128. The blades 126 may also include one or more protective buffers. (Not particularly illustrated) placed on the blades 126. The drill bit 101 may be of different models, configurations and / or dimensions depending on the particular application of the drill bit 101. During drilling, the drill bit 101 rods 103 may provide a torque to drill bit 101. For example, BHA 120 may include an electrically operated clutch assembly 121 and a housing of drive shaft 122. When activated, the assembly Electrically operated clutch 121 can convert the mechanical current of the rotating components within the drill string 103 into a servo steering current. The power steering current may bend the housing of the drive shaft 122 and thereby direct the drill bit 101 in a desired direction.
    [0004] FIGURE 2 illustrates a flowchart of a control system 200 for controlling an electric actuator 240. The control system 200 may include a controller 210, an environmental sensor 220, a battery 230, and may be configured to control the actuator 240 electrical.
    [0005] The electric actuator 240 may be electrically controlled by the clutch assembly (e.g., electrically operated clutch assembly 121), or any other electrically actuatable drilling device such as a solenoid valve, a motor or another electrically actuated clutch. For example, an electric actuator 240 may be an electric motor for guiding the drill bit 101 in directional drilling applications. In addition, the control system 200 may be used to control the electric actuator 240 in any suitable application (eg, drilling applications or wireline logging applications). The electric actuator 240 may be at the bottom of the hole. The control system 200 can be placed at the bottom of the hole and can be configured to optimize the current transmitted to an electric actuator 240. For example, the control system 200, including the battery 230, can be placed at the bottom of the hole at a position near or near the position of the downhole actuator 240. By minimizing the total energy from the battery 230 which is consumed by the electric actuator 240, the control system 200 can extend the duration Thus, the control system 200 can reduce the cost associated with the maintenance (e.g., charging or replacement) of the battery 230 in a downhole environment. The control 210 may include a processor 212 and a memory 214. The processor 212 may interact with the instructions stored in the memory 214. As described in more detail in FIGURE 3, the instructions stored in the memory 214 may include instructions. for determining the amount of current to be supplied by the battery 230 to the electric actuator 240 to operate the electric actuator 240.
    [0006] The processor 212 may also receive data from the environmental sensor 220, which may pick up one or more environmental conditions that could affect the amount of energy that might be required to operate the electric actuator 240. For example, the processor 212 may can receive data from an environmental sensor 220 which indicates the temperature. The magnetic field in an electrically actuated clutch can be proportional to the current flowing through the electrically actuated clutch. In addition, the resistance of the electrically actuated clutch can increase the temperature. Thus, more current may be needed at higher temperatures to obtain the requested drive current in order to operate the electrically operated clutch. The processor 212 may comprise, for example, a microprocessor, a microcontroller, an electrical signal processor (DSP), an application specific custom circuit (ASIC), or any other digital or analog circuit configured to interpret and / or execute program instructions and / or processing data. In some embodiments, the processor 212 may interpret and / or execute program instructions and / or process data stored in the memory 214. The memory 214 may be configured in part or in full as an application memory, or both. The memory 214 can store any system, device or apparatus configured to receive and / or house one or more memory modules. Each memory module may include any system, device, or apparatus configured to retain program instructions and / or data for a period of time (e.g., a computer-readable non-transit storage medium). As described in more detail with reference FIGURE 3, an activation sensor (not specifically illustrated) may be coupled to or incorporated into the electric actuator 240. The activation sensor may detect whether the electrical actuator 240 is activated when the current is applied to the electric actuator 240, and can transmit a signal to the control system 200 indicating the success or failure of the activation attempts. The control system 200 can adjust the level of the current (p) supplied to the electric actuator 240 during an activation attempt based on the number of successes and failures in the number of activations attempted by the spent (eg, 5, 10, 50, 100 activation attempts). If the number of activation failures in the n number of past attempts reaches a failure counting threshold, the control system 200 can determine that the current level (p) is not sufficient to successfully activate the electric actuator 240 at the desired level. Thus, the control system 200 can increase the power level (p) supplied to the electric actuators during subsequent activation attempts. On the other hand, if the successful activation number in the n number of past attempts reaches a success counting threshold, the control system 200 can determine that the current level (p) exceeds the level to successfully activate the actuator. electrical 240 at the desired level. Thus, the control system 200 can decrease the power level (p) supplied to the electric actuator 240 during subsequent activation attempts. Continuous monitoring of successful activations and activation failures, and adjustment of the power level (p) supplied to the electric actuator 240 during the activation attempts, may enable the control system 200 to self-activate. calibrate continuously. For example, the control system 200 may self-calibrate to provide the electric actuator 240 with sufficient, but not excess, current to operate. Thus, the charge of the battery 230 can be maintained and the service life of a downhole assembly including the battery 230 and the electric actuator 240 can be extended. FIGURE 3 illustrates a flowchart of an exemplary method 300 for controlling an electric actuator 240. As described above with reference to FIGURE 2, the steps of controlling the electric actuator 240 can be performed by the For example, the steps for controlling the electric actuator can be performed by the processor 212 of the control 210, based on the instructions stored in the memory 214. In step 304, the current level ( p) can be set to an initial current value (A). The initial current value (A) may be based on an initial estimate of the minimum current required to successfully activate the electric actuator 240. The minimum current required to successfully activate an electric actuator may depend on environmental conditions such as temperature. and / or the ambient pressure. Thus, the initial estimate of the minimum current required to successfully activate the electric actuator 240 may be based, in part, on one or more signals from the environmental sensor 220, which, as described above with reference to FIG. FIGURE 2, can measure environmental parameters, such as temperature and / or pressure. The initial estimate can also be based on physical parameters such as the torque transmitted by an electric actuator, such as an electrically actuated clutch. For example, the torque that can be transmitted through an electrically actuated clutch may depend on the friction between two clutch plates that can be located in an oil filled clutch housing. The friction may, in turn, depend on the current applied to the electrically actuated clutch, both the temperature and the pressure inside the clutch housing. Thus, the initial estimate of the minimum current required to successfully activate an electric actuator clutch can be based on the torque required for a given drilling application, the temperature of the electrically actuated clutch and / or inside the clutch housing. As described in more detail below with reference to steps 308, 314 and 330, the number of attempts to activate the electric actuator 240 may be counted with a loop counter to determine the number of successful attempts or not. In step 304, to initiate the count of these elements, the loop counter (i) can be set to zero, the success counter (j) can be set to zero and the failure counter (k) can be set to zero. In step 306, the control system 200 can determine whether activation of the electric actuator 240 might be necessary. If no activation is necessary, the control system 200 may repeat step 306. If activation is required, the control system 200 may proceed to step 308. In step 308, a value of (1) may be added to the loop counter (i) to record an attempt to activate the electric actuator 240. In step 310, the control system 200 may attempt to activate the electric actuator 240. For example, the control system 200 may drive the electric actuator 240 with the current level (p) from the battery 230. In step 312, the control system 200 can determine whether the attempt to activate the electric actuator 240 was a success or failure. For example, movement (or lack of movement) of the electric actuator 240 may be detected by an activation sensor coupled to or incorporated within the electric actuator 240, and a feedback signal from the The electric actuator 240 may be electrically transmitted to the control system 200 indicating whether the activation attempt was successful. As described above with reference to step 340, the control system 200 may continue counting the number of successful or failed activation attempts. The continuous count may take into consideration any number of attempts to activate the electric actuator 240. For example, the success counter may include the number of successful activations during the last 5, 10, 20, or any number "n". activation attempts. Similarly, the failure counter may include the number of activation failures during the last 5, 10, 20, or any number of "n" activation attempts. If, in step 312, the control system 200 determines that the activation attempt in step 310 was successful, the control system 200 may proceed to step 314. In step 314, the value "one" (1) can be added to the success counter (j). In addition, if the failure counter (k) is greater than zero, the value "one" (1) can be subtracted from the failure counter (k). In step 316, the control system 200 may compare the loop counter (i) with a threshold number of successful activations (E) to decrease the current level (p). The threshold number of successful activations (E) to decrease the current level (p) may be a threshold which indicates that the current level (p) exceeds the optimized current level to activate the electric actuator 240. If the counter of loop (i) is less than the threshold number of successful activations (E) to decrease the current level (p), the control system 200 can return to step 306. Moreover, if the loop counter (i ) is greater than or equal to the threshold number of successful activations (E) to decrease the current current level (p), the control system 200 may proceed to step 318. In step 318, the control system 200 can determine whether the loop counter (j) is equal to a threshold number of successful activations (E) to decrease the current level (p).
    [0007] If, in step 318, the success count (j) is equal to the threshold number of successful activations (E) to decrease the current level (p), then the control system 200 can proceed to the step 322. In step 322, the control system 200 can determine whether the current level (p) can be decreased by the decay variable (C) without the current level being below the allowed minimum current level ( MIN). In this case, the magnitude of decrease of the current level (C) can be subtracted from the current level (p). With the definition of a new current level, the control system 200 can reset the loop counter (i) and the success counter (j) to zero at step 324 and then return to step 306. If in step 318, the success count (j) is not equal to the threshold number of successful activations (E) for decreasing the current level (p), then the control system 200 can switch to Step 320. In step 320, the control system 200 can determine whether the success count (j) is greater than or equal to the minimum success number (F) for maintaining the current current level (p). If the success count (j) is greater than or equal to the minimum number of successes (F) for maintaining the current level of current (p), the control system 200 may proceed to step 324. At step 324 the control system 200 can reset the loop counter (i) and the success count (j) to zero, and then return to step 306.
    [0008] If, in step 320, the success count (j) is less than the minimum success number (F) for maintaining the current current level (p), the control system 200 may proceed to step 334 Step 334 can also be reached through steps 312, 330 and 332, which are described immediately below. Returning to step 312, if the control system 200 determines that the activation attempt in step 310 was a failure, the control system 200 may proceed to step 330. At step 330 , the value "one" (1) can be added to the failure counter (k). Subsequently, in step 332, the control system 200 can determine whether the failure count (k) is greater than or equal to the failure threshold number (D) for increasing the current current level (p). The threshold number of failures (D) for increasing the current current level (p) may be a threshold which indicates that the current level (p) is below the current level optimized to activate the electric actuator 240. If the failure count (k) is less than the failure threshold number (D) for increasing the current current level (p), the control system 200 may return to step 306. Furthermore, if the failure count (k) is greater than or equal to a failure threshold number (D) for increasing the current current level (p), the control system 200 can proceed to step 334 where the current current level (p) can be increased. In step 334, the magnitude of increase of the current level (B) can be added to the current current level (P). Then, in step 336, the control system 200 can determine if the current current level (p) is greater than the maximum current level (MAX). If the current current level (p) is greater than or equal to the maximum current level (MAX), the control system 200 can detect a fault condition in step 340. If the current level (p) is lower than the maximum current level (MAX), the control system 200 can set the failure count (k) to zero and return to step 306. As described in the previous steps, the current level (p) can be adjusted up or down based, for example, on the fact that the success count (j) is equal to the threshold number of successful activations (E) to decrease the current level (p), if the success count (j) is less than the minimum success number (F) for maintaining the current current level (p), also the failure count (k) is greater than or equal to the threshold number of failures (D) ) to increase the current level (p). The thresholds E, F and D can be set according to a desired calibration definition speed with which the control system 200 can self-calibrate. For example, if the thresholds E, F, and D are set to lower values (e.g., 10 or less), the controller 200 may self-calibrate within a smaller number of attempts only if thresholds E, F and D are set to higher values (eg, 20 or more). The calibration rate (e.g., the rate at which the control system 200 may self-calibrate) may depend on the magnitude of the increase in the current level (B), and the magnitude of the decrease in the current level. current level (C). For example, larger magnitudes of current level increase or decrease may allow faster calibration rates. On the other hand, smaller magnitudes of increase or decrease in the current level may allow the control system 200 to more accurately calibrate to an optimized current level (p) to activate the electric actuator 240. Thus, the magnitude of the increase in the current level (B) and the magnitude of the decrease in the current level (C) can be set to values which provide a sufficient balance between the calibration definition speeds and the accuracy of the calibration. In addition, the values for the magnitude (B) of the current level increase and the magnitude (C) of the current level decrease can be large enough that the system can quickly find an optimal current level (p). ), but low enough that the control system 200 avoids significantly exceeding the optimum current level (p) in a way that causes the control system 200 to oscillate too quickly between the current levels (p) which are too big or too weak. As described above with reference to step 304, the minimum current required to successfully activate an electric actuator may be dependent on environmental conditions such as temperature and / or ambient pressure. In addition to defining the initial current value (A) based on the measured environmental conditions, the magnitude of the current level increase (B), and the magnitude of the current level decrease (C), may be based , in part, on one or more signals from the environmental sensor 220. Thus, the magnitude of the increase in the current level (B), and the magnitude of the decrease in the current level (C) may be based, in part , on environmental parameters such as temperature and / or ambient pressure. The magnitude of the increase in the current level (B) and the magnitude of the decrease in the current level (C) may also be based on one or more physical parameters. For example, as described above with reference to step 304, the magnitude of the torque that can be transmitted through an electric actuator, such as an electrically actuated clutch, may depend on the current applied to the clutch. with electrical activation. FIGURE 4 illustrates a flowchart of an exemplary method 400 for controlling an electric actuator 240. As described above with reference to FIGURE 2, the steps of controlling the electric actuator 240 can be performed by the For example, the steps for controlling the electric actuator 240 may be performed by the processor 212 of the control 210, based on the instructions stored in the memory 214. In step 402, an electric actuator may be trained several times at a current level. For example, the control system 200 may drive the electric actuator 240 to an initial current level (A) during a plurality of activation attempts. In step 404, it can be determined whether the electric actuator has been successfully activated at each of the plurality of activation attempts. For example, the control 210 may receive a signal indicating whether or not the electric actuator 240 has been activated in response to a drive with an initial current level (or with any other current level) as described herein. above for step 402, during each of the plurality of activation attempts. In step 406, a number of failed activation attempts may be counted. For example, the command 210 may count the number of failed activation attempts that occurred during the plurality of activation attempts occurring in step 402. In step 408, a number of attempts Successful activation can be counted. For example, command 210 may count the number of successful activation attempts that occurred during the plurality of activation attempts occurring in step 402. In step 410, the current level may be adjusted. For example, the current level can be increased by the magnitude of the current level increase (B) in response to the number of failed activation attempts reaching a failure count threshold (for example, the number of failures). activation failure threshold (D) to increase the current level). As another example, the current level can be decreased by the magnitude of the current level decrease (C) in response to the number of successful activation attempts reaching a success count threshold (for example, the threshold number of successful activation (E) to decrease the current level). In step 412, the electric actuator can be driven to an adjusted current level. For example, the control system 200 may drive an electric actuator 240 one or more times at the current level that has been adjusted in step 410. At the end of step 412, the method 400 may return to Step 404. For example, steps 404 to 412 may be repeated until the current level has been calibrated to an optimized current level to drive the electric actuator 240. Modifications, additions, or omissions can be made to methods 400 without departing from the scope of the disclosure. In a specific embodiment, elements of which may be used in combination with other embodiments, the disclosure relates to a method for controlling an electric actuator. The method may include driving an electrical actuator at a current level during each of the plurality of activation attempts, determining whether the electrical actuator activated during each of the plurality of activation attempts, including a number of failed activation attempts, counting a number of successful activation attempts, adjusting the current level based on at least one of the number of failed activation attempts and the number of activation attempts successful, and driving the electric actuator to an adjusted current level. The method may also include increasing the current level based on the number of failed activation attempts reaching a failure count threshold.
    [0009] In addition, the method may also include decreasing the current level based on the number of successful activation attempts reaching a success count threshold. The method may also include increasing the current level based on the fact that the number of successful activation attempts is less than a threshold number of successful activation attempts to maintain the current level. In addition, the method may include calibrating the current level at an optimized current level to activate the electric actuator. The method may also include implementing a calibration definition rate by defining at least one of a success count threshold to decrease the current level and a failure count threshold to increase the current level. In addition, the method may include detecting an environmental condition associated with an electric actuator and adjusting the current level by a magnitude of current level increase and a magnitude of decrease of the current level. of the current level and the decrease of the current level being based on the detected environmental condition. In another specific embodiment, elements of which may be used in combination with other embodiments, the disclosure relates to a system for controlling an electric actuator. The system may include an electric actuator and a control electrically coupled to an electric actuator. The electric actuator may be configured to drive the electrical actuator at a current level during each of the plurality of activation attempts, to determine if the electrical actuator has been activated during each of the plurality of activation attempts. , count a number of failed activation attempts, count a number of successful activation attempts, adjust the current level based on at least one of the number of failed attempts to activate and the number of attempts successful activation, and driving the electric actuator to an adjusted current level. The command may also be configured to increase the current level based on the number of failed activation attempts reaching a failure count threshold. In addition, the command may be configured to decrease the current level based on the number of successful activation attempts reaching a success count threshold. The command can also be configured to increase the current level based on the fact that the number of successful activation attempts is less than a threshold number of successful activation attempts to maintain the current level. In addition, the control may be configured to calibrate the current level at an optimized current level to activate the electric actuator. The command also be configured to implement a calibration rate by setting at least one of a success count threshold to decrease the current level and a failure count threshold to increase the current level. In addition, the control may be configured to calibrate the current level at an optimized current level to activate the electric actuator. In yet another embodiment, the elements of which may be used in association with other embodiments, the disclosure relates to a machine-readable non-transitory medium comprising instructions stored thereon, the instructions being executable by a processor for facilitating the realization of a method for controlling an electric actuator. The method may include driving an electrical actuator at a current level during each of the plurality of activation attempts, determining whether the electrical actuator activated during each of the plurality of activation attempts, including a number of failed activation attempts, counting a number of successful activation attempts, adjusting the current level based on at least one of the number of failed activation attempts and the number of activation attempts successful, and driving the electric actuator to an adjusted current level. The method may also include increasing the current level based on the number of failed activation attempts reaching a failure count threshold. In addition, the method may also include decreasing the current level based on the number of successful activation attempts reaching a success count threshold. The method may also include increasing the current level based on the fact that the number of successful activation attempts is less than a threshold number of successful activation attempts to maintain the current level. In addition, the method may include calibrating the current level at an optimized current level to activate the electric actuator. The method may also include implementing a calibration definition rate by defining at least one of a success count threshold to decrease the current level and a failure count threshold to increase the current level. In addition, the method may include detecting an environmental condition associated with an electric actuator and adjusting the current level by a magnitude of current level increase and a magnitude of decrease of the current level. the current level and the decrease in the current level expands based on the detected environmental condition. Although the present disclosure has been described with several embodiments, various changes and modifications may be suggested to one of ordinary skill in the art. For example, although the present disclosure describes the configurations of the cutting elements with respect to the drill bits, the same principles can be used to model the effectiveness of any drilling tool according to the present disclosure. It is envisaged that the present disclosure
    权利要求:
    Claims (20)
    [0001]
    REVENDICATIONS1. A method of controlling an electric actuator, comprising: driving an electric actuator at a current level during each of a plurality of activation attempts; determining whether or not the electric actuator has been activated during each of the plurality of activation attempts; counting the number of failed attempts to activate; counting the number of successful activation attempts; adjusting the current level based on at least one of the number of failed activation attempts and the number of successful activation attempts; and driving the electric actuator to an adjusted current level.
    [0002]
    The method of claim 1, further comprising increasing the current level based on the number of failed activation attempts reaching a failure count threshold.
    [0003]
    The method of claim 1, further comprising decreasing the current level based on the number of successful activation attempts reaching a failure count threshold.
    [0004]
    The method of claim 1, further comprising increasing the current level based on the fact that the number of successful activation attempts is less than a threshold number of successful activation attempts to maintain the current level.
    [0005]
    The method of claim 1, further comprising calibrating the current level at an optimized current level to activate the electric actuator.
    [0006]
    The method of claim 5, further comprising implementing a calibration rate by setting at least one of a success count threshold to decrease the current level and a failure count threshold. to increase the current level.
    [0007]
    The method of claim 1, further comprising: detecting an environmental condition associated with the electric actuator; and adjusting the current level by one of an increase in the current level and a decrease in the current level, the increase in the current level and the decrease in the current level being based on the condition of the current level. environmental detected.
    [0008]
    8. System comprising: an electric actuator; and a control electrically coupled to the electric actuator and configured to: drive an electrical actuator at a current level during each of a plurality of activation attempts; Determining whether or not the electric actuator has been activated during each of the plurality of activation attempts; count the number of failed attempts to activate; count the number of successful activation attempts; adjusting the current level based on at least one of the number of failed activation attempts and the number of successful activation attempts; and driving the electric actuator to an adjusted current level.
    [0009]
    The system of claim 8, wherein the command may also be configured to increase the current level based on the number of failed activation attempts reaching a failure count threshold.
    [0010]
    The system of claim 8, wherein the command is configured to decrease the current level based on the number of successful activation attempts reaching a success count threshold.
    [0011]
    The system of claim 8, wherein the command is configured to increase the current level based on the fact that the number of successful activation attempts is less than a threshold number of successful activation attempts to maintain the level of success. current.
    [0012]
    The system of claim 8, wherein the control is configured to calibrate the current level to an optimized current level to activate the electrical actuator.
    [0013]
    The system of claim 12, wherein the control is configured to implement a calibration rate by defining at least one of a success count threshold to decrease the current level and a count threshold of failure to increase the current level.
    [0014]
    The system of claim 8, wherein the control is configured to: detect an environmental condition associated with the electrical actuator; and adjusting the current level by one of an increase of the current level and a decrease of the current level, the increase of the current level and the decrease of the current level being based on the detected environmental condition.
    [0015]
    15. A machine-readable non-transitory medium comprising instructions stored thereon, the instructions being executable by a processor to facilitate the realization of a method for estimating the efficiency of a drilling tool, the method comprising: driving an electric actuator at a current level during each of a plurality of activation attempts; determining whether the electric actuator has been activated or not during each of the plurality of attempts activation; counting the number of failed attempts to activate; counting the number of successful activation attempts; adjusting the current level based on at least one of the number of failed activation attempts and the number of successful activation attempts; and driving the electric actuator to an adjusted current level.
    [0016]
    The machine-readable non-transitory medium of claim 15, wherein the method further comprises increasing the current level based on the number of failed activation attempts reaching a failure count threshold.
    [0017]
    The machine-readable non-transitory medium of claim 15, wherein the method further comprises decreasing the current level based on the number of successful activation attempts reaching a failure count threshold.
    [0018]
    The machine-readable non-transitory medium of claim 15, wherein the method further comprises calibrating the current level at an optimized current level to activate the electric actuator.
    [0019]
    The machine-readable non-transitory support of claim 15, wherein the method further comprises implementing a calibration rate by defining at least one of a success metric threshold to decrease the level. current and a failure count threshold to increase the current level.
    [0020]
    The machine-readable non-transitory support of claim 15, wherein the method further comprises: detecting an environmental condition associated with the electrical actuator; andadjustment of the current level by one of an increase of the current level and a decrease of the current level, the increase of the current level and the decrease of the current level being based on the detected environmental condition .5
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    同族专利:
    公开号 | 公开日
    CA2962323A1|2016-04-28|
    WO2016064500A1|2016-04-28|
    CA2962323C|2019-06-04|
    US20160116889A1|2016-04-28|
    EP3209858A1|2017-08-30|
    US9958838B2|2018-05-01|
    FR3027694B1|2019-06-28|
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    优先权:
    申请号 | 申请日 | 专利标题
    US14/522,166|US9958838B2|2014-10-23|2014-10-23|Optimizing power delivered to an electrical actuator|
    US14522166|2014-10-23|
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