CN108894969A - Petroleum drilling engineering drilling pump suppresses the monitoring judgment method and its pump pressure guard system of pump - Google Patents
Petroleum drilling engineering drilling pump suppresses the monitoring judgment method and its pump pressure guard system of pump Download PDFInfo
- Publication number
- CN108894969A CN108894969A CN201810732053.0A CN201810732053A CN108894969A CN 108894969 A CN108894969 A CN 108894969A CN 201810732053 A CN201810732053 A CN 201810732053A CN 108894969 A CN108894969 A CN 108894969A
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- pump
- drilling
- high pressure
- pressure
- pressure valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, 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
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, 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
- F04B49/10—Other safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2207/00—External parameters
- F04B2207/70—Warnings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Earth Drilling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention relates to petroleum drilling engineering safety control technologies.A kind of petroleum drilling engineering drilling pump suppresses the monitoring judgment method of pump, installs pressure sensor in drilling pump water outlet, detects the mud pressure P1 in high pressure valve upstream line；Use the mud pressure P2 in pressure sensor detection high pressure valve downstream line；According under nominal situation in the pipeline of high pressure valve upstream and downstream mud pressure difference average value, setting judge constant N；When drilling well pump startup, the mud pressure P2 in the mud pressure P1 and high pressure valve downstream line relatively in high pressure valve upstream line judges that high pressure valve is in the open state if P1-P2≤N in real time, and drilling pump can operate normally；If P1-P2 > N, judges the case where high pressure valve is in close state, and drilling pump suppresses pump.A kind of the case where petroleum drilling engineering prevents drilling pump from suppressing the pump pressure guard system of pump, suppresses pump using monitoring judgment method identification drilling pump generation, and then guard system progress termination of pumping pressure release is pumped by drilling pump.
Description
Technical field
The present invention relates to petroleum drilling engineering safety control technologies, more particularly, to a kind of monitoring for preventing drilling pump from suppressing pump
And prevention treatment and pump pressure guard system.
Background technique
In petroleum exploration and development and drilling process, prevent drilling pump from suppressing the essential requirement that pump is safety in production.
Currently, a drilling machine can be equipped with two bench drill well pumps in domestic drilling operation course, in every bench drill well pump water outlet
In design, it is generally all equipped with a high pressure valve and a low pressure return valve.If there is event in some drilling pump of two bench drill well pumps
When barrier need to repair, it is necessary to the high pressure valve of faulty drilling pump is closed, with the high pressure for preventing another bench drill well pump from generating when running
Mud stream channels in drilling pump Under Repair and hurts maintenance personal.Maintenance finishes must be in the item of high pressure line no pressure
Under part, then the high pressure valve closed when first opening maintenance just allows to restart drilling pump.
But in real drilling process, since artificial factor influences, can make mistakes generation repeatedly, so that being not switched on
High pressure valve just restarts the faulty operation of drilling pump, and this faulty operation, which can be such that drilling pump pump pressure increases rapidly in moment, to be caused
Extremely suppress pump（It is commonly called as suppressing dead pump）, result often result in personal injury even fatal crass.
The patent of invention proposed before applicant《Electric control safety system for slurry pump》（The patent No.：201110158925.5）With
Utility model《Electric control safety system for slurry pump》（The patent No.：201120199304.7）It is on the high pressure line of drilling pump or to bore
Well pump, which is discharged on pipeline, installs pressure sensor, by matching with the equipment such as PLC and A/D module, industrial personal computer and relief valve
It closes and uses, the method for taking the termination of pumping pressure release when pump pressure is more than normal value, when being pumped superelevation in effective solution drillng operation
Suppress the security risk that pump generates.But this method is due to that cannot judge whether high pressure valve closes, so cannot also solve to suppress dead
The problem of pump.
Summary of the invention
The present invention is in view of the shortcomings of the prior art, propose the monitoring judgement side that a kind of petroleum drilling engineering drilling pump suppresses pump
Method, the security risk that drilling pump pump pressure superelevation generates when pressure sensor can be made full use of to prevent drilling are economic and practical；
The present invention proposes a kind of pump pressure guard system that can prevent drilling pump from suppressing pump, had both realized pump on aforementioned base
Security protection is pressed, and the generation that drilling pump suppresses dead pump accident can be effectively prevented.
The technical solution adopted in the present invention：
A kind of petroleum drilling engineering drilling pump suppresses the monitoring judgment method of pump, and 1）In the pipe of connection drilling pump water outlet and high pressure valve
Pressure sensor is installed on line, detects the mud pressure P1 in high pressure valve upstream line；In the pipeline of connection high pressure valve and standpipe
Upper installation pressure sensor detects the mud pressure P2 in high pressure valve downstream line；
2）According under nominal situation in the pipeline of high pressure valve upstream and downstream mud pressure difference average value, setting judge constant N；
3）When drilling well pump startup, controller is according to the mud pressure P1 and high pressure valve downstream line obtained in high pressure valve upstream line
Interior mud pressure P2, and real-time perfoming compares：
（1）If P1-P2≤N, judge that high pressure valve is in the open state, drilling pump can operate normally；
（2）If P1-P2 > N, judges the case where high pressure valve is in close state, and drilling pump suppresses pump.
The petroleum drilling engineering drilling pump suppresses the monitoring judgment method of pump, if high pressure valve upstream and downstream under nominal situation
The average value of mud pressure difference is n in pipeline, in conjunction with the drilling equipment parameter of use, sets 1≤N-n≤3.
The petroleum drilling engineering drilling pump suppresses the monitoring judgment method of pump, closes shape detecting that high pressure valve is in
When the case where state, drilling pump suppresses pump occurs, early warning is issued in time.
A kind of petroleum drilling engineering prevents drilling pump from suppressing the pump pressure guard system of pump, is known using the monitoring judgment method
The case where other drilling pump suppresses pump generation, and then guard system is pumped by drilling pump and carries out termination of pumping pressure release, to prevent drilling pump from suppressing
The generation of pump：
When drilling well pump startup, controller is according to obtaining pump discharge pressure P1 and high pressure valve downstream mud pressure P2, and real-time perfoming
Compare：
1）If P1-P2≤N, judge that high pressure valve is in the open state, drilling pump can operate normally；Need to take precautions against at this time is
Pump pressure superelevation problem when drilling, the upper limit value P of setting pump pressure protection；
If pump discharge pressure P1 or/and high pressure valve downstream mud pressure P2 is more than or equal to P, drilling pump is pumped guard system starting
Relief valve, linkage close drilling pump；
2）If P1-P2 > N, judges the case where high pressure valve is in close state, and drilling pump suppresses pump；It needs to prevent at this time
Model is to be not switched on high pressure valve just to start drilling pump, to prevent from suppressing the generation of dead pump accident；Controller starting pump pressure guard system
It opens relief valve linkage and closes drilling pump, termination of pumping pressure release, to prevent from suppressing dead pump accident generation.
The petroleum drilling engineering prevents drilling pump from suppressing the pump pressure guard system of pump, including pump discharge pressure sensor
P1, high pressure valve downstream mud pressure sensor P2, relief valve, controller and atmospheric control, the pump discharge pressure pass
Sensor P1, high pressure valve downstream mud pressure sensor P2 output pressure signal access controller, controller output control connection electricity
Magnet valve passes through the solenoid valve control relief valve and drilling well pump power.
Beneficial effects of the present invention：
1, petroleum drilling engineering drilling pump of the present invention suppresses the monitoring judgment method of pump, transmits pressure using slurry fluid in-line
The characteristics of, the difference of comparison slurry fluid upstream and downstream pressure is calculated, by using pressure sensor to judge whether high pressure valve closes
It closes, drilling pump when can not only prevent drilling pump from suppressing the generation of dead pump accident, but also pressure sensor can be made full use of to prevent drilling
It is pumped the security risk that superelevation generates.
2, the present invention prevents drilling pump from suppressing the pump pressure guard system of pump, has not only realized pump pressure security protection, but also can be effective
Prevent drilling pump from suppressing the generation of dead pump accident.Rationally, structure is simple, without increasing system structure cost for design（It only needs to add height
Pressure valve downstream mud pressure sensor P2）, it is easy to accomplish, facilitate popularization, there is preferable social benefit.
Detailed description of the invention
Fig. 1 is the pump pressure guard system structural schematic diagram of the invention for preventing drilling pump from suppressing pump.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be described in further detail.
Embodiment 1
Referring to Fig. 1, petroleum drilling engineering drilling pump of the present invention suppresses the monitoring judgment method of pump, realizes that process is as follows：
1）Pressure sensor is installed on the pipeline of connection drilling pump water outlet and high pressure valve, is detected in high pressure valve upstream line
Mud pressure P1；Pressure sensor is installed on the pipeline of connection high pressure valve and standpipe, detects the mud in high pressure valve downstream line
Starch pressure P2；
2）According under nominal situation in the pipeline of high pressure valve upstream and downstream mud pressure difference average value, setting judge constant N；
3）When drilling well pump startup, controller is according to the mud pressure P1 and high pressure valve downstream line obtained in high pressure valve upstream line
Interior mud pressure P2, and real-time perfoming compares：
（1）If P1-P2≤N, judge that high pressure valve is in the open state, drilling pump can operate normally；
（2）If P1-P2 > N, judges the case where high pressure valve is in close state, and drilling pump suppresses pump.
It is detecting that high pressure valve is in close state, when the case where drilling pump suppresses pump occurs, is issuing early warning in time.
If the average value of mud pressure difference is n in the pipeline of high pressure valve upstream and downstream under nominal situation, set in conjunction with the drilling well of use
Standby parameter, sets 1≤N-n≤3.
In drilling well production, according to the design well depth and bottom pressure of each well, the operating pressure of drilling pump can be designed
The normal working pressure range of Pn, Pn is in 3MPA~35MPA.To prevent operation error or bit port from blocking caused drilling pump
Pressure anomaly superelevation needs to set the protection value Pn+c for preventing from being pumped abnormal superelevation in real work (c as constant, generally
Value is 1~3）If when the operating pressure P >=Pn+c for the drilling pump that real-time monitoring obtains, it is necessary to which timely pressure release is to prevent pump
Press high generation security risk of continuing rising.
According to domestic drilling equipment parameter routinely it is found that the mud that drilling pump pumps out is flowed and passed in high pressure line
When passing pressure, since the effect of resistance can make mud pressure of the mud pressure in standpipe lower than drilling pump water outlet, but mud
The amplitude of pressure reduction does not exceed 1MPA, may determine that high pressure valve is in the open state or closes shape using this characteristic
State.If the pressure signal value of pressure sensor 3 is P1, the pressure signal value of pressure sensor 5 is P2, then P1-P2 < 1MPA.
The installation site distance high-voltage valve 2 of pressure sensor 5 is closer, and the difference of P1-P2 is with regard to smaller.In view of slurry fluid pressure has
The signal value that fluctuation, pressure sensor 3 and pressure sensor 5 acquire also has error, therefore, can be by the upper and lower play pipe of high pressure valve
The average value n of mud pressure difference is slightly amplified to a constant N in line（It can be set according to field working conditions, and meet 1≤N-n
≤3）, then judge whether drilling pump builds the pressure according to the forward and backward pressure difference of high pressure valve in drilling pump high pressure line.
Embodiment 2
Referring to Fig. 1, the present embodiment is that a kind of petroleum drilling engineering prevents drilling pump from suppressing the pump pressure guard system specific embodiment party of pump
Formula identifies the case where drilling pump suppresses pump generation using monitoring judgment method described in embodiment 1, and then is pumped and is prevented by drilling pump
Protecting system carries out termination of pumping pressure release, to prevent drilling pump from suppressing the generation of pump：
When drilling well pump startup, controller is according to obtaining pump discharge pressure P1 and high pressure valve downstream mud pressure P2, and real-time perfoming
Compare：1）If P1-P2≤N, judge that high pressure valve is in the open state, drilling pump can operate normally；It needs to take precautions against at this time
Pump pressure superelevation problem when being drilling, the upper limit value P of setting pump pressure protection；
If pump discharge pressure P1 or/and high pressure valve downstream mud pressure P2 is more than or equal to P, drilling pump is pumped guard system starting
Relief valve, linkage close drilling pump；
2）If P1-P2 > N, judges the case where high pressure valve is in close state, and drilling pump suppresses pump；It needs to prevent at this time
Model is to be not switched on high pressure valve 2 to start drilling pump just to prevent from suppressing the generation of dead pump accident；Controller starting pump pressure guard system
It opens relief valve linkage and closes drilling pump, termination of pumping pressure release, to prevent from suppressing dead pump accident generation.
Embodiment 3
Referring to Fig. 1, the petroleum drilling engineering of the present embodiment prevents drilling pump from suppressing the pump pressure guard system of pump, not with embodiment 2
It is with place：Including pump discharge pressure sensor P1, high pressure valve downstream mud pressure sensor P2, relief valve, controller with
And atmospheric control, the pump discharge pressure sensor P1, high pressure valve downstream mud pressure sensor P2 output pressure signal
Access controller, controller output control connection solenoid valve, passes through the solenoid valve control relief valve and drilling well pump power.
As shown in Figure 1, a pressure sensor 3 is installed on water outlet pipeline between drilling pump 1 and high pressure valve 2, in height
One pressure sensor 5 is installed, PLC 6 acquires pressure by A/D module 7 in real time on the high pressure line between pressure valve 2 and standpipe 4
The signal value of sensor 3 and pressure sensor 5, industrial personal computer 8 according to the set procedure analyze and determine the pressure signal value of acquisition,
If there is pressure anomaly, then industrial personal computer 8, which issues instruction, acts two five-way electromagnetic valves 10, and system automatically cuts off drilling pump 1
Power source keep its out of service, open simultaneously 9 pressure release of pneumatic ball valve being mounted on low pressure return pipeline.
1）If P1-P2≤N, judge that high pressure valve 2 is in the open state, drilling pump can operate normally, and need to take precautions against at this time
Be drilling when pump pressure superelevation problem, that is, prevent P >=Pn+c.If the signal value P1 of pressure sensor 3 or pressure sensor 5
When signal value P2 is more than or equal to Pn+c, industrial personal computer 8, which issues instruction, acts two five-way electromagnetic valves 10, and system will automatically cut off brill
The power source of well pump 1 keeps its out of service, 9 pressure release of pneumatic ball valve being mounted on low pressure return pipeline is opened simultaneously, to reach
The purpose of termination of pumping pressure release exclusion hidden danger；
2）If P1-P2 > N judges that high pressure valve 2 is in close state, need to take precautions against at this time is to be not switched on high pressure valve 2 just to open
The risky operation of dynamic drilling pump 1 prevents the generation for suppressing dead pump accident.Industrial personal computer 8, which issues instruction, makes two five-way electromagnetic valves 10
Movement, the power source that system automatically cuts off drilling pump 1 keep its out of service, open simultaneously the gas being mounted on low pressure return pipeline
Dynamic 9 pressure release of ball valve occurs to reach and prevent from suppressing dead pump accident.
Claims (5)
1. the monitoring judgment method that a kind of petroleum drilling engineering drilling pump suppresses pump, it is characterised in that：
1）Pressure sensor is installed on the pipeline of connection drilling pump water outlet and high pressure valve, is detected in high pressure valve upstream line
Mud pressure P1；Pressure sensor is installed on the pipeline of connection high pressure valve and standpipe, detects the mud in high pressure valve downstream line
Starch pressure P2；
2）According under nominal situation in the pipeline of high pressure valve upstream and downstream mud pressure difference average value, setting judge constant N；
3）When drilling well pump startup, controller is according to the mud pressure P1 and high pressure valve downstream line obtained in high pressure valve upstream line
Interior mud pressure P2, and real-time perfoming compares：
（1）If P1-P2≤N, judge that high pressure valve is in the open state, drilling pump can operate normally；
（2）If P1-P2 > N, judges the case where high pressure valve is in close state, and drilling pump suppresses pump.
2. the monitoring judgment method that petroleum drilling engineering drilling pump according to claim 1 suppresses pump, it is characterised in that：If just
The average value of mud pressure difference is n in the pipeline of high pressure valve upstream and downstream under normal operating condition, in conjunction with the drilling equipment parameter of use, setting 1
≤N-n≤3。
3. the monitoring judgment method that petroleum drilling engineering drilling pump according to claim 1 or 2 suppresses pump, it is characterised in that：
It is detecting that high pressure valve is in close state, when the case where drilling pump suppresses pump occurs, is issuing early warning in time.
4. a kind of petroleum drilling engineering prevents drilling pump from suppressing the pump pressure guard system of pump, sentenced using monitoring described in claim 1
The case where disconnected method identification drilling pump suppresses pump generation, and then guard system is pumped by drilling pump and carries out termination of pumping pressure release, to prevent
Drilling pump suppresses the generation of pump, it is characterised in that：
When drilling well pump startup, controller is according to obtaining pump discharge pressure P1 and high pressure valve downstream mud pressure P2, and real-time perfoming
Compare：
1）If P1-P2≤N, judge that high pressure valve is in the open state, drilling pump can operate normally；Need to take precautions against at this time is
Pump pressure superelevation problem when drilling, the upper limit value P of setting pump pressure protection；
If pump discharge pressure P1 or/and high pressure valve downstream mud pressure P2 is more than or equal to P, drilling pump is pumped guard system starting
Relief valve, linkage close drilling pump；
2）If P1-P2 > N, judges the case where high pressure valve is in close state, and drilling pump suppresses pump；It needs to prevent at this time
Model is to be not switched on high pressure valve just to start drilling pump, to prevent from suppressing the generation of dead pump accident；Controller starting pump pressure guard system
It opens relief valve linkage and closes drilling pump, termination of pumping pressure release, to prevent from suppressing dead pump accident generation.
5. petroleum drilling engineering according to claim 4 prevents drilling pump from suppressing the pump pressure guard system of pump, it is characterised in that：
Including pump discharge pressure sensor P1, high pressure valve downstream mud pressure sensor P2, relief valve, controller and pneumatic control system
System, the pump discharge pressure sensor P1, high pressure valve downstream mud pressure sensor P2 output pressure signal access controller, control
Device output control connection solenoid valve processed, passes through the solenoid valve control relief valve and drilling well pump power.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810732053.0A CN108894969B (en) | 2018-07-05 | 2018-07-05 | Monitoring and judging method for drilling pump of petroleum drilling engineering and pumping pressure protection system thereof |
| PCT/CN2019/094455 WO2020007309A1 (en) | 2018-07-05 | 2019-07-03 | Monitoring, prevention and management method for preventing drill pump from pump suffocation and misoperation, and pump pressure protection system therefor |
| US17/258,126 US11391103B2 (en) | 2018-07-05 | 2019-07-03 | Monitoring, prevention and management method for preventing drilling pump from pump suffocation and misoperation, and pump pressure protection system therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810732053.0A CN108894969B (en) | 2018-07-05 | 2018-07-05 | Monitoring and judging method for drilling pump of petroleum drilling engineering and pumping pressure protection system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108894969A true CN108894969A (en) | 2018-11-27 |
| CN108894969B CN108894969B (en) | 2022-02-08 |
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| CN201810732053.0A Active CN108894969B (en) | 2018-07-05 | 2018-07-05 | Monitoring and judging method for drilling pump of petroleum drilling engineering and pumping pressure protection system thereof |
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| CN (1) | CN108894969B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020007309A1 (en) * | 2018-07-05 | 2020-01-09 | 濮阳市百福瑞德石油科技有限公司 | Monitoring, prevention and management method for preventing drill pump from pump suffocation and misoperation, and pump pressure protection system therefor |
| CN111520317A (en) * | 2020-04-30 | 2020-08-11 | 濮阳市百福瑞德石油科技有限公司 | Prediction judgment method for preventing drilling pump from being held out and pumping pressure protection system thereof |
| CN115434689A (en) * | 2022-09-16 | 2022-12-06 | 濮阳市百福瑞德石油科技有限公司 | Method for judging pump-holding-out of drilling pump in petroleum drilling engineering and pumping pressure protection system thereof |
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| US4802359A (en) * | 1986-10-30 | 1989-02-07 | Schlumberger Technology Corporation | Tool for measuring pressure in an oil well |
| JPH0379900A (en) * | 1989-08-18 | 1991-04-04 | Nippo Valve Kogyo Kk | Pressure reducing type contraflow preventing device with abnormality detection control device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020007309A1 (en) * | 2018-07-05 | 2020-01-09 | 濮阳市百福瑞德石油科技有限公司 | Monitoring, prevention and management method for preventing drill pump from pump suffocation and misoperation, and pump pressure protection system therefor |
| US11391103B2 (en) | 2018-07-05 | 2022-07-19 | Puyang Baifu Reide Petroleum Science And Technology Company Limited | Monitoring, prevention and management method for preventing drilling pump from pump suffocation and misoperation, and pump pressure protection system therefor |
| CN111520317A (en) * | 2020-04-30 | 2020-08-11 | 濮阳市百福瑞德石油科技有限公司 | Prediction judgment method for preventing drilling pump from being held out and pumping pressure protection system thereof |
| CN115434689A (en) * | 2022-09-16 | 2022-12-06 | 濮阳市百福瑞德石油科技有限公司 | Method for judging pump-holding-out of drilling pump in petroleum drilling engineering and pumping pressure protection system thereof |
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| Publication number | Publication date |
|---|---|
| CN108894969B (en) | 2022-02-08 |
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