CN106321059B - A kind of well control system and other well system safety interlock methods - Google Patents

A kind of well control system and other well system safety interlock methods Download PDF

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Publication number
CN106321059B
CN106321059B CN201610772055.3A CN201610772055A CN106321059B CN 106321059 B CN106321059 B CN 106321059B CN 201610772055 A CN201610772055 A CN 201610772055A CN 106321059 B CN106321059 B CN 106321059B
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China
Prior art keywords
well
controller
winch
executing agency
circulatory
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CN201610772055.3A
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CN106321059A (en
Inventor
杨向前
刘书杰
郭华
何玉成
周建良
周超
何英明
李建民
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China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
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China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
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Priority to CN201610772055.3A priority Critical patent/CN106321059B/en
Publication of CN106321059A publication Critical patent/CN106321059A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28Other constructional details
    • B66D1/40Control devices
    • B66D1/48Control devices automatic
    • B66D1/485Control devices automatic electrical
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/02Surface sealing or packing
    • E21B33/03Well heads; Setting-up thereof
    • E21B33/06Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
    • E21B33/064Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers specially adapted for underwater well heads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06Control using electricity

Abstract

The present invention relates to a kind of well control systems and other well system safety interlock methods, 1) it is the following steps are included: be provided with PLC controller, and monitor the status signal of rotary system, lifting system and the circulatory system by PLC controller in well control system;2) when normal operation, each system respectively works independently;3) when an emergency situation is encountered, needs to close preventer, PLC controller judges whether each system is in halted state;4) if each system is in halted state, PLC is controlled to each system and is sent lock command, into 5);Otherwise, PLC controller is ceased and desisted order and lock command to the transmission of each system, into 6);5) each system lock simultaneously return information, into 7);6) each system is carried out closing relevant device and be locked, and return information;7) well control system judges whether each system is all locked, if all locking carries out in next step, otherwise, returns 4);8) well control system closes preventer.

Description

A kind of well control system and other well system safety interlock methods
Technical field
The present invention relates to a kind of safety interlock methods, especially with regard to one kind well control system used in field of oil drilling System and other well system safety interlock methods.
Background technique
Currently, well control system, hoisting system, rotary system and the cyclic system of the oil-well rig of domestic sea fixed platform The control system of system is all made of PLC control, and between each other without communication connection, does not also coordinate its logic in control system The part of interlocked relationship cannot achieve the logical interlock relationship between them.For example, as shown in Figure 1, existing closing well control system The step of middle preventer is as follows: 1) offshore rig device includes well control system, hoisting system, rotary system and the circulatory system;2) When normal operation, each system is run independently of each other;3) in case of emergency, need to close the preventer of well control system, then Artificial first send to rotary system, lifting system and the circulatory system is needed to order;4) manual operation rotary system is shut down top and is driven; 5) manual operation lifting system shuts down well drilling hoist;6) the manual operation circulatory system shuts down slush pump;7) artificial determine is promoted System, rotary system and the circulatory system, which have been shut down, to be finished;8) manual operation closes the preventer of well control system.Wherein, crucial Drilling operator is required from step 3) to step 7) to be operated manually on corresponding control panel, is taken a long time, and And it is easy to appear maloperation, production development accident.
Well control system and other systems have close logical relation, when preventer is closed in well control system, it is desirable that promote system Otherwise system, rotary system and the circulatory system may result in preventer damage all in halted state, drill string is broken or suppresses in well Leak stratum.It primarily now observed by rig personnel, analyze and handle the logical relation between them, cause operation error The case where happen occasionally, frequently result in production accident and biggish economic loss.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of well control systems and other well system safety interlock sides Method is able to achieve the safety interlock of well control system Yu other systems, avoids production development accident and causes economic loss.
To achieve the above object, the present invention takes following technical scheme: a kind of well control system and other well systems safety Interlock method, it is characterised in that 1) it is the following steps are included: be provided with PLC controller, and supervised by PLC controller in well control system Control the working condition of rotary system, lifting system and the circulatory system;2) when offshore rig operates normally, well control system, rotation system System, lifting system and the circulatory system respectively work independently;3) when an emergency situation is encountered, need to close the preventer in well control system When, PLC controller judges whether rotary system, lifting system and the circulatory system are in halted state;If 4) rotary system, Lifting system and the circulatory system are in halted state, then PLC control is sent out to rotary system, lifting system and the circulatory system respectively Lock command is sent, is entered step 5);Otherwise, PLC controller sends to rotary system, lifting system and the circulatory system stop respectively 6) order and lock command, enter step;5) rotary system drives top according to the lock command received and is locked and returned Information, lifting system lock and return information according to the lock command received to well drilling hoist, and the circulatory system is according to connecing The lock command received lock to slush pump and return information, enters step 7);6) rotary system stops according to what is received Only order and lock command close top and drive and carry out locking and return information, and lifting system is according to ceasing and desisting order of receiving and locks Fixed order closes well drilling hoist and simultaneously carries out locking and return information, and the circulatory system is according to ceasing and desisting order of receiving and lock command It closes slush pump and carries out locking and return information;7) whether well control system judges rotary system, lifting system and the circulatory system It is all locked, it is carried out if all locked in next step, otherwise, return step 4);8) well control system closes preventer.
Preferably, the step 5), in step 6), rotary system, lifting system and the circulatory system are in the lock state down, When each system starts, also continue to keep lock state.
Preferably, the releasing of each system lock state must individually be released.
Preferably, the rotary system drives controller, Ding Qu executing agency, top-drive motor and top by top and drives action sensor It constitutes;The top is driven controller and is electrically connected respectively with the Ding Qu executing agency and top drive action sensor, and the top is driven Executing agency is electrically connected with the top-drive motor, and the top-drive motor also drives action sensor with the top and is electrically connected.
Preferably, what the top drove that controller receives that the PLC controller sends cease and desist order and lock command, the top It drives controller and sends closing and locking information to the Ding Qu executing agency, the Ding Qu executing agency closes the top-drive motor And lock, the top-drive motor stops rotating, and the status information that action sensor detects the top-drive motor is driven on the top, and will Information drives controller through the top and is transmitted to the PLC controller.
Preferably, the lifting system is by winch controller, winch executing agency, winch motor and drawworks sensor structure At;The winch controller is electrically connected with the winch executing agency and the drawworks sensor respectively, and the winch executes machine Structure is electrically connected with the winch motor, and the winch motor is also electrically connected with the drawworks sensor.
Preferably, the winch controller receive the PLC controller cease and desist order and lock command, the winch control Device processed sends closing and locking information to the winch executing agency, and the winch executing agency closes the winch motor and goes forward side by side Row locking, the drawworks sensor detects the status information of the winch motor, and information is transmitted through the winch controller To the PLC controller.
Preferably, the circulatory system is passed by mud pump controller, slush pump executing agency, mud pump motor and slush pump Sensor is constituted;The mud pump controller is electrically connected with the slush pump executing agency and the slush pump sensor respectively, institute It states slush pump executing agency to be electrically connected with the mud pump motor, the mud pump motor is electrically connected with the slush pump sensor It connects.
Preferably, the mud pump controller receive the PLC controller cease and desist order and lock command, the mud Pump controller sends closing and locking information to the slush pump executing agency, and the slush pump executing agency closes the mud Pump motor is simultaneously locked, and the slush pump sensor detects the status information of the mud pump motor, and described in information passed through Mud pump controller is transmitted to the PLC controller.
The invention adopts the above technical scheme, which has the following advantages: 1, the present invention builds well using network technology The communication bridge of control system and other 3 systems, realized by increasing PLC controller well control system and other 3 systems it Between logical relation, and the correlation function of other 3 systems is locked.2, the present invention is using PLC controller to other 3 System sending is ceased and desisted order, and after its is out of service, is locked, turns off preventer, and be always maintained at lock state;If It is that other systems all turn off preventer in the closed state, then lock to other 3 systems, can effectively prevents to grasp Make personnel and operate other 3 systems under preventer closing situation, to avoid accident, drilling machine operation can be greatly improved Safety and reliability.3, the present invention in the locked state, when other 3 systems start every time, continues to keep lock state, Disarmed mode is that each system individually releases, and cannot once release the systematic lock state of institute,
Detailed description of the invention
Fig. 1 is well control system and other well system flow diagrams in the prior art.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
The present invention provides a kind of well control system and other well system safety interlock methods, the specific steps of which are as follows:
1) PLC controller is provided in well control system, and by PLC controller monitoring rotary system, lifting system and circulation The working condition of system;
2) when offshore rig operates normally, the respective independent work of well control system, rotary system, lifting system and the circulatory system Make;
3) when an emergency situation is encountered, needs to close the preventer in well control system, PLC controller judge rotary system, Whether lifting system and the circulatory system are in halted state;
If 4) rotary system, lifting system and the circulatory system are in halted state, PLC control is to rotation respectively System, lifting system and the circulatory system send lock command, enter step 5);Otherwise, PLC controller respectively to rotary system, mention The system of liter and circulatory system transmission are ceased and desisted order and lock command, are entered step 6);
5) rotary system drives top according to the lock command received and lock simultaneously return information;Lifting system is according to connecing The lock command received lock to well drilling hoist and return information;The circulatory system is according to the lock command received to mud Pump lock and return information, enters step 7);
6) rotary system closes top according to ceasing and desisting order of receiving and lock command and drives and carry out locking and return information, Lifting system closes well drilling hoist according to ceasing and desisting order of receiving and lock command and carries out locking and return information, cyclic system System closes slush pump according to ceasing and desisting order of receiving and lock command and carries out locking and return information;
7) well control system judges whether rotary system, lifting system and the circulatory system all locked, if all locked into Row next step, otherwise, return step 4);
8) well control system closes preventer.
Above-mentioned steps 5) and step 6) in, rotary system, lifting system and the circulatory system are in the lock state down, each system When system starting, also continue to keep lock state, the releasing to each system lock state must individually be released, can be effectively Prevention personnel operate rotary system, lifting system or the circulatory system under preventer closed state and mention to avoid accident The safety and reliability of high drilling machine operation.
In above-described embodiment, rotary system drives controller, Ding Qu executing agency, top-drive motor and top driving by top and senses Device is constituted.Top is driven controller and is electrically connected respectively with Ding Qu executing agency and top drive action sensor, and Ding Qu executing agency and top are driven Motor electrical connection, for controlling the working condition of top-drive motor, top-drive motor also drives action sensor with top and is electrically connected, for examining Survey the working condition of top-drive motor.
What top drove that controller receives that PLC controller sends cease and desist order and lock command, and top, which is driven controller and driven to top, to be executed Mechanism sends closing and locking information, and Ding Qu executing agency closes top-drive motor and simultaneously locks, and top-drive motor stops rotating, top driving Make the status information of sensor detection top-drive motor, and information is driven into controller through top and is transmitted to PLC controller.
In the various embodiments described above, lifting system is by winch controller, winch executing agency, winch motor and drawworks sensor It constitutes.Winch controller is electrically connected with winch executing agency and drawworks sensor respectively, winch executing agency and winch motor electricity Connection, for controlling the working condition of winch motor, winch motor is also electrically connected with drawworks sensor, for detecting winch motor Working condition.
Winch controller receive PLC controller cease and desist order and lock command, winch controller is to winch executing agency It sends and closes simultaneously locking information, winch executing agency closes winch motor and simultaneously locked, and drawworks sensor detects winch motor Status information, and information is transmitted to PLC controller through winch controller.
In the various embodiments described above, the circulatory system is by mud pump controller, slush pump executing agency, mud pump motor and mud Sensor is pumped to constitute.Mud pump controller is electrically connected with slush pump executing agency and slush pump sensor respectively, and slush pump executes Mechanism is electrically connected with mud pump motor, for controlling the working condition of mud pump motor, mud pump motor and slush pump sensor Electrical connection, for detecting the working condition of mud pump motor.
Mud pump controller receive PLC controller cease and desist order and lock command, mud pump controller are held to slush pump Row mechanism sends closing and locking information, and slush pump executing agency closes motor and simultaneously locked, and slush pump sensor detects mud The status information of stock pump motor, and information is transmitted to PLC controller through mud pump controller.
The various embodiments described above are merely to illustrate the present invention, and structure and size, setting position and the shape of each component are all can be with It is varied, based on the technical solution of the present invention, the improvement and wait that all principles according to the present invention carry out individual part With transformation, should not exclude except protection scope of the present invention.

Claims (9)

1. a kind of well control system and other well system safety interlock methods, it is characterised in that: it the following steps are included:
1) PLC controller is provided in well control system, and by PLC controller monitoring rotary system, lifting system and the circulatory system Working condition;
2) when offshore rig operates normally, well control system, rotary system, lifting system and the circulatory system respectively work independently;
3) when an emergency situation is encountered, needs to close the preventer in well control system, PLC controller judges rotary system, is promoted Whether system and the circulatory system are in halted state;
If 4) rotary system, lifting system and the circulatory system are in halted state, PLC control respectively to rotary system, Lifting system and the circulatory system send lock command, enter step 5);Otherwise, PLC controller is respectively to rotary system, promotion system It unites and circulatory system transmission is ceased and desisted order and lock command, enter step 6);
5) rotary system drives top according to the lock command received and lock and return information, and lifting system is according to receiving Lock command well drilling hoist lock and return information, the circulatory system according to the lock command received to slush pump into 7) row locking and return information, enter step;
6) rotary system closes top according to ceasing and desisting order of receiving and lock command and drives and carry out locking and return information, is promoted System closes well drilling hoist according to ceasing and desisting order of receiving and lock command and carries out locking and return information, circulatory system root Slush pump is closed according to ceasing and desisting order of receiving and lock command and carries out locking and return information;
7) well control system judges whether rotary system, lifting system and the circulatory system are all locked, carries out down if all locked One step, otherwise, return step 4);
8) well control system closes preventer.
2. a kind of well control system as described in claim 1 and other well system safety interlock methods, it is characterised in that: described In step 5), step 6), rotary system, lifting system and the circulatory system are in the lock state down, each system start when, also after Lock state is held in continuation of insurance.
3. a kind of well control system as described in claim 1 and other well system safety interlock methods, it is characterised in that: each The releasing of system lock state must individually be released.
4. a kind of well control system as described in claim 1 and other well system safety interlock methods, it is characterised in that: described Rotary system drives controller, Ding Qu executing agency, top-drive motor and top drive action sensor by top and constitutes;Drive controller in the top It drives action sensor with the Ding Qu executing agency and the top respectively to be electrically connected, electricity is driven on the Ding Qu executing agency and the top Mechatronics, the top-drive motor also drive action sensor with the top and are electrically connected.
5. a kind of well control system as claimed in claim 4 and other well system safety interlock methods, it is characterised in that: described What top drove that controller receives that the PLC controller sends cease and desist order and lock command, the top drive controller drive to the top Executing agency sends closing and locking information, and the Ding Qu executing agency closes the top-drive motor and locks, and electricity is driven on the top Machine stops rotating, and the status information that action sensor detects the top-drive motor is driven on the top, and information is controled through the top Device processed is transmitted to the PLC controller.
6. a kind of well control system as described in claim 1 and other well system safety interlock methods, it is characterised in that: described Lifting system is made of winch controller, winch executing agency, winch motor and drawworks sensor;The winch controller difference It is electrically connected with the winch executing agency and the drawworks sensor, the winch executing agency is electrically connected with the winch motor It connects, the winch motor is also electrically connected with the drawworks sensor.
7. a kind of well control system as claimed in claim 6 and other well system safety interlock methods, it is characterised in that: described Winch controller receive the PLC controller cease and desist order and lock command, the winch controller are executed to the winch Mechanism sends closing and locking information, and the winch executing agency closes the winch motor and locked, and the winch passes Sensor detects the status information of the winch motor, and information is transmitted to the PLC controller through the winch controller.
8. a kind of well control system as described in claim 1 and other well system safety interlock methods, it is characterised in that: described The circulatory system is made of mud pump controller, slush pump executing agency, mud pump motor and slush pump sensor;The slush pump Controller is electrically connected with the slush pump executing agency and the slush pump sensor respectively, the slush pump executing agency and institute The electrical connection of mud pump motor is stated, the mud pump motor is electrically connected with the slush pump sensor.
9. a kind of well control system as claimed in claim 8 and other well system safety interlock methods, it is characterised in that: described Mud pump controller receive the PLC controller cease and desist order and lock command, the mud pump controller is to the mud It pumping executing agency and sends closing and locking information, the slush pump executing agency closes the mud pump motor and is locked, The slush pump sensor detects the status information of the mud pump motor, and information is transmitted to through the mud pump controller The PLC controller.
CN201610772055.3A 2016-08-30 2016-08-30 A kind of well control system and other well system safety interlock methods Active CN106321059B (en)

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CN203773308U (en) * 2014-01-08 2014-08-13 王建军 Drilling pump electromechanical interlocking control device
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Publication number Priority date Publication date Assignee Title
CN201460863U (en) * 2009-07-30 2010-05-12 中国石油天然气集团公司 Managed pressure drilling system
EP2542752A1 (en) * 2010-03-01 2013-01-09 Frank's International, Inc. Elevator grip assurance
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