CN111101878A - Monitoring system for drilling rod hydraulic power tong is gone up, is broken out and health control - Google Patents
Monitoring system for drilling rod hydraulic power tong is gone up, is broken out and health control Download PDFInfo
- Publication number
- CN111101878A CN111101878A CN202010002616.8A CN202010002616A CN111101878A CN 111101878 A CN111101878 A CN 111101878A CN 202010002616 A CN202010002616 A CN 202010002616A CN 111101878 A CN111101878 A CN 111101878A
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- module
- shackle
- lower computer
- hydraulic power
- power tong
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/165—Control or monitoring arrangements therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/165—Control or monitoring arrangements therefor
- E21B19/166—Arrangements of torque limiters or torque indicators
Abstract
The invention provides a monitoring system for the screwing-on and unscrewing and health management of a hydraulic power tong of a drill pipe, which is characterized in that: comprises an upper computer, a receiver and a lower computer; the upper computer is connected with the receiver; the lower computer is connected with the receiver; the lower computer comprises a lower computer hardware system and a lower computer software system; the lower computer hardware system comprises a pressure relief valve controller, a comprehensive controller, a gear shifting controller, an acousto-optic warning indicator, a temperature sensor, an upper shackle torque sensor and a turn number sensor; the lower computer software system comprises a user reminding module, an upper shackle automatic judgment module, an upper shackle counting module, a wrong shackle judgment module, a wrong shackle protection module and an anti-collision shackle module. The invention has the beneficial effects that: the hydraulic power tong can effectively and accurately realize the monitoring of the screwing-on and unscrewing of the hydraulic power tong of the drill pipe, and the screwing-on and unscrewing quality and efficiency are improved; effectively record the operating time and the number of turns of the rotating tongs, and provide accurate basis for the timely maintenance of the tongs.
Description
Technical Field
The invention relates to the field of mechanical monitoring, in particular to a monitoring system for screwing and unscrewing of a hydraulic power tong of a drill pipe and health management.
Background
The hydraulic power tong of drilling rod among the prior art is gone up, and the work of breaking out often is accomplished by the manual work, lacks the control, and is inefficient, and the drilling rod hydraulic power tong is gone up, the condition of breaking out by mistake or the condition that takes place that torque control is improper and break drilling rod or sleeve pipe screw thread often takes place, seriously influences operating mass with rated load and work efficiency. When the tongs are used, due to the fact that accurate use parameters do not exist, the tongs cannot be maintained at regular time, faults can be found only when the tongs are used, and production is delayed seriously.
Therefore, a monitoring system for health management of automatic tongs is urgently needed in the market.
Disclosure of Invention
In order to solve the technical problems, the invention discloses a monitoring system for drill pipe hydraulic power tong screwing-on, unscrewing and health management, and the technical scheme of the invention is implemented as follows:
the utility model provides a monitored control system that is used for drilling rod hydraulic power to pincers go up, break out and health management which characterized in that: comprises an upper computer, a receiver and a lower computer; the upper computer is connected with the receiver; the lower computer is connected with the receiver; the lower computer comprises a lower computer hardware system and a lower computer software system; the lower computer hardware system comprises a pressure relief valve controller, a comprehensive controller, a gear shifting controller, an acousto-optic warning indicator, a temperature sensor, an upper shackle torque sensor and a turn number sensor; the lower computer software system comprises a user reminding module, an upper shackle automatic judgment module, an upper shackle counting module, a wrong shackle judgment module, a wrong shackle protection module and an anti-collision shackle module; the integrated controller operates the upper shackle automatic judgment module, the user reminding module, the upper shackle statistical module, the alternate shackle judgment module, the alternate shackle protection module and the anti-impact shackle module; the upper shackle automatic judgment module monitors the upper shackle sensor and the shackle sensor; the cross buckling judgment module monitors the integrated controller; the wrong buckle protection module monitors the wrong buckle judgment module; the pressure relief valve controller is controlled by the staggered buckling protection module; the anti-impact buckle module controls the pressure relief valve controller.
Preferably, the upper computer further comprises a pressure relief testing module; the pressure relief test module runs on the integrated controller; the pressure relief testing module controls the pressure relief valve controller.
Preferably, the upper computer further comprises a data summarizing module; and the data summarizing module acquires the information provided by the comprehensive controller and the make-up and break-out statistic module.
Preferably, the lower computer is provided with a communication module; the lower computer performs data interaction through the communication module; the communication module communicates in a wireless or wired mode.
Preferably, the upper computer further comprises a wireless and wired switching module; the lower computer also comprises an information display screen; the information display screen is connected with the integrated controller; the lower computer hardware also comprises a lower computer function key; and the lower computer function is connected with the integrated controller in a key mode.
Preferably, the upper computer further comprises a torque sensor error compensation module; and the torque sensor error compensation module sends compensation information to the integrated controller.
Preferably, the upper computer further comprises a torque sensor calibration auxiliary module; the torque sensor calibration auxiliary module is connected with the integrated controller.
Preferably, the lower computer further comprises a gear shifting actuator; the upper computer further comprises an upper shackle gear shifting module; the upper buckle gear shifting module controls the gear shifting actuator; the upper buckle torque sensor is connected with the upper buckle tripping gear shifting module; the shackle torque sensor is connected with the upper shackle gear shifting module.
Preferably, the upper computer further comprises a monitoring setting module; the monitoring setting module configures the integrated controller; the lower computer hardware also comprises a lower computer function key; and the lower computer function is connected with the integrated controller in a key mode.
By implementing the technical scheme of the invention, the technical problem that accurate basis for timely maintenance of the tong is lacked due to lack of on-off monitoring of the hydraulic power tong of the drill pipe in the prior art can be solved; by implementing the technical scheme of the invention, the threading monitoring and the breaking monitoring of the hydraulic power tongs of the drill rod can be effectively and accurately realized, and the threading quality and the threading efficiency are improved; effectively record the operating time and the number of turns of rotation of the tongs, and provide the technical effect of accurate basis for the timely maintenance of the tongs.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a system diagram of a monitoring system for drill pipe hydraulic power tong make-up and break-out and health management;
fig. 2 is a schematic diagram of the sensor mounting position of a monitoring system for drill pipe hydraulic power tong make-up and break-out and health management.
In the above drawings, the reference numerals denote:
1-a shackle sensor; 2-make-up torque sensor; 3-high and low gear sensor; 4-turn number sensor; 5-a temperature sensor; 6-a receiver; 7-a comprehensive controller; 8-a shackle automatic judgment module; 9-a user reminding module; 10-a shackle statistical module; 11-wrong buckling judgment module; 12-wrong buckling protection module; 13-anti-snap module; 14-a pressure relief valve controller; 15-a communication module; 16-a shift actuator; 17-a data summarization module; 18-a torque sensor error compensation module; 19-a torque sensor calibration auxiliary module; 20-monitoring setting module; 21-a shift controller; 22-wireless wired switching module; 23-an information display screen; 24-function keys of lower computer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In a specific embodiment, as shown in fig. 1 and 2, a monitoring system for drill pipe hydraulic power tong up, down-hole and health management is characterized in that: comprises an upper computer, a receiver and a lower computer; the upper computer is connected with the receiver; the lower computer is connected with the receiver; the lower computer comprises a lower computer hardware system and a lower computer software system; the lower computer hardware system comprises a pressure relief valve controller, a comprehensive controller, a gear shifting controller, an acousto-optic warning indicator, a temperature sensor, an upper shackle torque sensor and a turn number sensor; the lower computer software system comprises a user reminding module, an upper shackle automatic judgment module, an upper shackle counting module, a wrong shackle judgment module, a wrong shackle protection module and an anti-collision shackle module; the integrated controller operates the upper shackle automatic judgment module, the user reminding module, the upper shackle statistical module, the alternate shackle judgment module, the alternate shackle protection module and the anti-impact shackle module; the upper shackle automatic judgment module monitors the upper shackle sensor and the shackle sensor; the cross buckling judgment module monitors the integrated controller; the wrong buckle protection module monitors the wrong buckle judgment module; the pressure relief valve controller is controlled by the staggered buckling protection module; the anti-impact buckle module controls the pressure relief valve controller.
In the specific embodiment, the upper computer is used for controlling the operation of the lower computer, and the receiver is used for providing an intermediary for the communication between the upper computer and the lower computer; the lower computer is used for executing a specific monitoring task; the upper shackle sensor is arranged at a position capable of detecting the switching of the upper shackle clamping and the lower shackle clamping of the hydraulic power tongs of the drill rod, and can give a corresponding upper shackle state or shackle state signal when the tongs enter the upper shackle clamping or the lower shackle clamping for judging the upper shackle state on the hydraulic power tongs of the drill rod, the principle of the sensor is to detect whether an object approaches the sensor or not, monitor the upper shackle state and transmit the information to an upper computer through a receiver; the upper shackle torque sensor is arranged at a position where the upper shackle torque and the lower shackle torque of the drill pipe hydraulic power tongs can be measured, is used for detecting the upper shackle torque and the lower shackle torque, and transmits the upper shackle state to the upper computer through the receiver; the turn number sensor detects the rotating direction and the turn number in the process of making out, and the principle is that an opening gear arranged on the drill rod hydraulic power tongs is connected with an idle gear, the idle gear is connected with a closed gear, the closed gear is connected with an ownership encoder, and the rotating speed of the opening gear is calculated by using the rotating speed of the closed gear, so that turn number data is obtained.
In the operation process, various information collected by the sensors is gathered in the integrated controller, if the upper computer is connected to the lower computer through the receiver, the integrated controller of the lower computer sends the collected and processed information to the upper computer, and then the integrated controller distributes related data to other modules, wherein the upper shackle counting module is a log recording module which records various data in the upper shackle process, on one hand, the times of successful shackling and the times of wrong shackling are recorded, on the other hand, the related data are stored, and the stored data can be used for analyzing and processing the data; the upper shackle automatic judgment module is used for judging the upper shackle state and the lower shackle state based on data transmitted by an upper shackle sensor so as to judge the upper shackle state, when the upper shackle is successfully buckled, a successful upper shackle message is sent to the integrated controller, the integrated controller sends a notice to inform the success of the upper shackle, the integrated controller controls the pressure relief valve controller to release pressure after the upper shackle is successfully buckled, meanwhile, the integrated controller is connected with a wrong shackle judgment module, the wrong shackle judgment module is connected with the integrated controller and monitors various data in the integrated controller so as to judge whether the wrong shackle occurs or not, once the wrong shackle judgment module judges that the wrong shackle occurs according to the data, the integrated controller controls the pressure relief valve controller through a receiver, the pressure relief valve controller is arranged on a pressure relief valve of the drill rod hydraulic power tong and is an electromagnetic overflow valve, and the pressure relief valve controller controls the pressure relief valve to relieve pressure so as to protect the drill rod hydraulic power tong; the anti-thread-punching module is used for starting a pressure relief valve to relieve pressure if threading is continued after the threading is successfully finished in the threading process so as to prevent the thread from being damaged by screwing, is connected with the integrated controller, measures the state of the upper shackle through data collected by an upper shackle sensor, an upper shackle torque sensor and a turn number sensor, and controls the pressure relief valve controller to relieve pressure through the integrated controller and a receiver if the thread punching phenomenon occurs, so that the thread is prevented from being damaged by screwing; the user reminds the module and draws the data in the statistical module of break-out according to the integrated control module, judge whether need maintain the tongs through tongs work total duration, rotatory total number of turns, total pole number of break-out and other data to send the maintenance through the network to the user and remind, the warning mode includes characters and reputation etc. it can directly use the reputation attention device, automatic recalculation maintenance cycle after user's maintenance is accomplished, thereby avoid the shut down that equipment trouble leads to.
In the threading process, step one, the integrated controller detects whether the integrated controller is in the threading state or not through the threading sensor, if so, the integrated controller enters the next step, and if not, the integrated controller continues to detect the threading state; step two, the integrated controller starts to accumulate turns through a turn counter, monitors the torque transmitted by the torque sensor in real time, records the turns and the torque in real time, sends a pressure relief signal and an audible and visual alarm to a pressure relief valve to remind a user of successful make-up if the current torque reaches the specified torque and the current turns are greater than the specified turns, and the current time is greater than the time of successful make-up or make-out last time at the current moment, the integrated controller records the current value of the successful make-up counter, continues to monitor the state of make-up after the pressure relief time exceeds the specified time, and resets the turn counter if the current time is not in the state of make-up, and jumps to the step one;
if the current torque reaches the designated torque and the current number of turns is less than the designated number of turns, a pressure relief signal and an audible and visual alarm are sent to the pressure relief valve to remind a user of the occurrence of wrong buckling; if the current torque reaches the specified torque, and the time from the current moment to the last time of successful make-up or break-out is less than the specified time, sending a pressure relief signal and an audible and visual alarm to the pressure relief valve to remind a user of the occurrence of a notching behavior, resetting the turn number counter after the pressure relief time exceeds the specified time, and skipping to the first step; and if the make-up and break-out state is changed in the second step and the current make-up state is not, clearing the turn number counter and skipping to the first step.
In the shackle process, in the first step, the integrated controller detects whether the integrated controller is in a shackle state or not through the shackle sensor, if so, the integrated controller enters the next step, and if not, the integrated controller continues to detect the shackle state;
step two, the integrated controller starts to accumulate turns through a turn counter, monitors torque transmitted by a torque sensor, records the turns and the torque in real time, completes the breakout in the breakout process if the current torque reaches the specified torque, continues to monitor the breakout state, succeeds the breakout if the current torque is not in the breakout state and the breakout is completed, resets the turn counter, increments a breakout success counter, records the current breakout counter value, and jumps to the step one; and if the upper shackle state is changed in the second step and the upper shackle state is not in the shackle state at present, clearing the turn number counter and skipping to the first step.
Through the interaction among the modules, the threading and tripping monitoring of the hydraulic power tongs of the drill rod is effectively and accurately realized, and the threading and tripping quality and efficiency are improved; effectively record the operating time and the number of turns of the rotating tongs, and provide accurate basis for the timely maintenance of the tongs.
In a preferred embodiment, as shown in fig. 1 and 2, the upper computer further includes a pressure relief testing module; the pressure relief test module runs on the integrated controller; the pressure relief testing module controls the pressure relief valve controller.
In this kind of preferred embodiment, staff can control the relief valve pressure release through the integrated control ware for whether detect the relief valve and normally work.
In a preferred embodiment, as shown in fig. 1 and fig. 2, the upper computer further includes a data summarization module; and the data summarizing module acquires the information provided by the comprehensive controller and the make-up and break-out statistic module.
In the preferred embodiment, the data summarization module is connected with the integrated controller, receives data in the integrated controller and the upper shackle statistical module, makes a relevant chart and presents the chart to a user through a corresponding external display, can display the torque, the communication mode and state, the working temperature and the data in the upper shackle statistical module in a graphical mode, can display the proportional relation between the current torque and the specified torque in a strip or circular mode in the display mode, and can also be connected with an external printer to print relevant information; meanwhile, data are summarized.
In a preferred embodiment, as shown in fig. 1 and 2, the lower computer is provided with a communication module; the lower computer performs data interaction through the communication module; the communication module communicates in a wireless or wired mode; the upper computer also comprises a wireless and wired switching module; the lower computer also comprises an information display screen; the information display screen is connected with the integrated controller.
In the preferred embodiment, the upper computer and the lower computer perform data interaction by using the receiver through the communication module, the upper computer and the lower computer can be connected in a wireless mode or a wired mode, the number of the lower computer and the upper computer is generally many-to-one, and a plurality of lower computers are integrated into one receiver in a wired or wireless mode; when the wired communication fails, the wireless wired switching module of the upper computer detects the wired communication failure and controls the receiver to switch the corresponding failed lower computer into a wireless communication mode, so that the condition that the lower computer cannot be used due to the failure of the wired communication is avoided; and the lower computer is provided with an information display screen which is used for displaying the running information of the lower computer and the parameter information of the lower computer.
In a preferred embodiment, as shown in fig. 1 and 2, the upper computer further includes a torque sensor error compensation module; and the torque sensor error compensation module sends compensation information to the integrated controller.
In such a preferred embodiment, the torque sensor error compensation module may be configured to zero the torque sensor to offset the system error.
In a preferred embodiment, as shown in fig. 1 and 2, the upper computer further includes a torque sensor calibration auxiliary module; the torque sensor calibration auxiliary module is connected with the integrated controller.
In the preferred embodiment, the sensor calibration is completed by inputting the torque value monitored by the current system into the system.
In a preferred embodiment, as shown in fig. 1 and 2, the lower machine further comprises a shift actuator; the upper computer further comprises an upper shackle gear shifting module; the upper buckle gear shifting module controls the gear shifting actuator; the upper buckle torque sensor is connected with the upper buckle tripping gear shifting module; the shackle torque sensor is connected with the upper shackle gear shifting module.
In the preferred embodiment, the torque sensor monitors the torque in the process of fastening and transmits the torque to the integrated controller, the integrated controller detects the torque, and if the current maximum torque or the specified torque of the high-gear fastening process is reached, the integrated controller gives a low-gear shift prompt, provides a gear shift signal to the gear shift actuator and commands the gear shift actuator to shift gears; the tripping torque sensor monitors torque in the tripping process and transmits the torque to the comprehensive controller, the comprehensive controller detects the torque, and if the current torque reaches high-grade torque or a specified torque range in the low-grade tripping process, a high-grade gear shifting prompt is given, a high-grade gear shifting signal is provided for the gear shifting actuator, and the gear shifting actuator is instructed to shift gears.
In a preferred embodiment, as shown in fig. 1 and 2, the upper computer further includes a monitoring setting module; the monitoring setting module configures the integrated controller; the lower computer hardware also comprises a lower computer function key; and the lower computer function is connected with the integrated controller in a key mode.
In the preferred embodiment, a user can selectively configure each sensor through the monitoring setting module, namely, several sensors can be selected for installation and configuration according to actual requirements, and functions can be selected and configured according to actual requirements; meanwhile, the hardware of the lower computer can also use the function keys of the lower computer to directly configure the integrated controller, and the lower computer can be separated from the upper computer to be used independently.
It should be understood that the above-described embodiments are merely exemplary of the present invention, and are not intended to limit the present invention, and that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a monitored control system that is used for drilling rod hydraulic power to pincers go up, break out and health management which characterized in that: comprises an upper computer, a receiver and a lower computer; the upper computer is connected with the receiver; the lower computer is connected with the receiver; the lower computer comprises a lower computer hardware system and a lower computer software system;
the lower computer hardware system comprises a pressure relief valve controller, a comprehensive controller, a gear shifting controller, an acousto-optic warning indicator, a temperature sensor, an upper shackle torque sensor and a turn number sensor;
the lower computer software system comprises a user reminding module, an upper shackle automatic judgment module, an upper shackle counting module, a wrong shackle judgment module, a wrong shackle protection module and an anti-collision shackle module;
the integrated controller operates the upper shackle automatic judgment module, the user reminding module, the upper shackle statistical module, the alternate shackle judgment module, the alternate shackle protection module and the anti-impact module;
the upper shackle automatic judgment module monitors the upper shackle sensor and the shackle sensor;
the cross buckling judgment module monitors the integrated controller;
the wrong buckle protection module monitors the wrong buckle judgment module; the pressure relief valve controller is controlled by the staggered buckling protection module;
the anti-impact buckle module controls the pressure relief valve controller.
2. The monitoring system for drill pipe hydraulic power tong threading and tripping and health management as claimed in claim 1, wherein: the number of the lower computers is not less than one.
3. The monitoring system for drill pipe hydraulic power tong threading and tripping and health management as claimed in claim 1, wherein: the upper computer also comprises a pressure relief test module; the pressure relief test module runs on the integrated controller; the pressure relief testing module controls the pressure relief valve controller.
4. The monitoring system for drill pipe hydraulic power tong threading and tripping and health management as claimed in claim 1, wherein: the upper computer also comprises a data summarizing module; and the data summarizing module acquires the information provided by the comprehensive controller and the make-up and break-out statistic module.
5. The monitoring system for drill pipe hydraulic power tong threading and tripping and health management as claimed in claim 1, wherein: the upper computer further comprises a torque sensor error compensation module; and the torque sensor error compensation module sends compensation information to the integrated controller.
6. The monitoring system for drill pipe hydraulic power tong threading and tripping and health management as claimed in claim 1, wherein: the upper computer further comprises a torque sensor calibration auxiliary module; the torque sensor calibration auxiliary module is connected with the integrated controller.
7. The monitoring system for drill pipe hydraulic power tong threading and tripping and health management as claimed in claim 1, wherein:
the lower computer also comprises a gear shifting actuator; the upper computer further comprises an upper shackle gear shifting module; the upper buckle gear shifting module controls the gear shifting actuator;
the upper buckle torque sensor is connected with the upper buckle tripping gear shifting module; the shackle torque sensor is connected with the upper shackle gear shifting module.
8. The monitoring system for drill pipe hydraulic power tong threading and tripping and health management as claimed in claim 1, wherein: the upper computer also comprises a monitoring setting module; the monitoring setting module configures the integrated controller;
the lower computer hardware also comprises a lower computer function key; and the lower computer function is connected with the integrated controller in a key mode.
9. A monitoring system for drill pipe hydraulic power tong on, tripping and health management according to any one of claims 1 to 8, characterised in that: the lower computer is provided with a communication module; the lower computer performs data interaction through the communication module; the communication module communicates in a wireless or wired mode.
10. A monitoring system for drill pipe hydraulic power tong make-up, break-out and health management as claimed in claim 9, wherein: the upper computer also comprises a wireless and wired switching module;
the lower computer also comprises an information display screen; the information display screen is connected with the integrated controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010002616.8A CN111101878B (en) | 2020-01-02 | 2020-01-02 | Monitoring system for drilling rod hydraulic power tong is gone up, is broken out and health control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010002616.8A CN111101878B (en) | 2020-01-02 | 2020-01-02 | Monitoring system for drilling rod hydraulic power tong is gone up, is broken out and health control |
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| CN111101878A true CN111101878A (en) | 2020-05-05 |
| CN111101878B CN111101878B (en) | 2021-08-06 |
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| CN102305038A (en) * | 2011-09-08 | 2012-01-04 | 天津弗兰克科贸有限公司 | Oil well casing tong torque monitoring automatic control system |
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| WO2016007583A1 (en) * | 2014-07-08 | 2016-01-14 | Premiere, Inc. | Multi-stage pressure control dump valve assembly |
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| EP3444426A2 (en) * | 2017-05-26 | 2019-02-20 | Weatherford Technology Holdings, LLC | Local electric power generation for tong control system |
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2020
- 2020-01-02 CN CN202010002616.8A patent/CN111101878B/en active Active
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| CN102305038A (en) * | 2011-09-08 | 2012-01-04 | 天津弗兰克科贸有限公司 | Oil well casing tong torque monitoring automatic control system |
| WO2016007583A1 (en) * | 2014-07-08 | 2016-01-14 | Premiere, Inc. | Multi-stage pressure control dump valve assembly |
| CN204371154U (en) * | 2014-12-10 | 2015-06-03 | 中曼石油钻井技术有限公司 | Shackle device on well head on a kind of oil-well rig |
| CN106370338A (en) * | 2016-11-03 | 2017-02-01 | 江苏如石机械有限公司 | Drill rod power tong intelligent torque meter |
| EP3444426A2 (en) * | 2017-05-26 | 2019-02-20 | Weatherford Technology Holdings, LLC | Local electric power generation for tong control system |
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