CN117147075A - Water seal pressure test method and system for well control equipment - Google Patents
Water seal pressure test method and system for well control equipment Download PDFInfo
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- CN117147075A CN117147075A CN202311415237.1A CN202311415237A CN117147075A CN 117147075 A CN117147075 A CN 117147075A CN 202311415237 A CN202311415237 A CN 202311415237A CN 117147075 A CN117147075 A CN 117147075A
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- 238000010998 test method Methods 0.000 title claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 45
- 238000005070 sampling Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 14
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The invention discloses a water seal pressure test method and a water seal pressure test system for well control equipment. The system can automatically control the pressure increasing, pressure maintaining and pressure reducing processes, reduce the complexity of water seal pressure test, accurately calculate pressure data in the water seal pressure test process, and effectively improve the reliability and safety of well control equipment pressure test.
Description
Technical Field
The invention belongs to the technical field of overhaul of well control devices, and particularly relates to a water seal pressure test method and system for well control equipment.
Background
In the oil and gas drilling process, the well control device is an important facility for controlling high-pressure oil gas flow in a well, and is an important guarantee for ensuring that the drilling and development operation process is safely and smoothly carried out. The well control device is a generic term of special equipment and tools required by implementing the oil and gas well pressure control technology, and mainly comprises a blowout preventer. The specification prescribes that any well control device must carry out strict pressure test and water/air pressure sealing test before being put into use so as to ensure that the well control device can reliably and effectively control high-pressure oil air flow in a well in actual use and prevent blowout accidents, but the existing well control equipment maintenance equipment is poor in safety protection performance, and in order to improve the construction safety and the equipment safety of a well site, a water sealing pressure test experiment with more accurate pressure data is needed to be carried out on the well control device.
Disclosure of Invention
Aiming at the defects in the prior art, the water sealing pressure test method and the system for the well control equipment provided by the invention solve the problem that the pressure value of the water sealing pressure test method of the existing well control device is not accurate enough.
In order to achieve the aim of the invention, the invention adopts the following technical scheme: a water seal pressure test method for well control equipment comprises the following steps:
s1, controlling a water pressure equipment module to inject pressurized water into a tested piece to enable the pressure of the tested piece to rise, initializing a counting unit and collecting pressure data of the tested piece;
s2, acquiring currently acquired pressure data, judging whether the currently acquired pressure data is larger than a supercharging threshold value, if so, calculating a pressure data effective value according to the numerical value of a counting unit, entering S5, and if not, entering S3;
s3, obtaining a pressure data set according to the currently acquired pressure data, and calculating a pressure change rate;
s4, judging whether the pressure change rate is larger than a change rate threshold corresponding to the currently acquired pressure data, if so, adding 1 to the counting unit, returning to S2, and if not, returning to S2;
and S5, performing a high-pressure test according to the effective value of the pressure data to obtain a pressure test report of the pressure curve of the tested piece, and completing the water seal pressure test of the well control equipment.
Further: the step S3 comprises the following substeps:
s31, acquiring a group of pressure data continuously acquired in a preset time period before the currently acquired pressure data, and obtaining a pressure data group;
s32, acquiring currently acquired pressure data, and replacing the oldest pressure data in the pressure data set with the currently acquired pressure data to obtain a new pressure data set;
s33, calculating the pressure change rate according to the new pressure data set.
The beneficial effects of the above-mentioned further scheme are: according to the invention, the pressure change rate is calculated, the change rate of the pressure data in a short time can be obtained by considering the change rate threshold value, if the pressure change rate is larger than the change rate threshold value, the pressure data is continuously enlarged, and the currently acquired pressure data has errors with the true value, so that the effective value of the pressure data is necessary to be calculated, the current pressure data is updated, and the accuracy of the pressure data in the boosting process is improved.
Further: in the step S33, the pressure change rate is calculatedIThe expression of (2) is specifically:
in the method, in the process of the invention,Mas the total number of pressure data in the pressure data set,T s for the sampling period of the pressure data,as pressure datax 1 And pressure datax 2 Difference of->As pressure datax M-1 And pressure datax M Is a difference in (c).
Further: in the S2, calculating the effective value of the pressure dataYThe expression of (2) is specifically:
in the method, in the process of the invention,x t is thattThe pressure data collected at the moment of time,x t-i is thatt-iThe pressure data collected at the moment of time,x t-M is thatt-MThe pressure data collected at the moment of time,tfor the current moment of time,iis a time ordinal number, andi=0,…,M，is thatt-iThe weight data of the moment of time,is thatt-MWeight data of time of day->Is thattThe weight data of the moment of time,Nfor the count threshold value,nis the count cell value.
The beneficial effects of the above-mentioned further scheme are: according to the invention, different weight data are assigned to each pressure data, the currently acquired pressure data is corrected according to the pressure data and the counting unit value after the weight data are assigned, so that the calculated effective value of the pressure data is more accurate, in the process of calculating the effective value of the pressure data, the introduced weight data are set according to the change rate of the pressure change rate, namely, the pressure change rate is gradually increased in the process of rising the pressure data, and the error of the pressure data acquired in the process is increased, so that the acquired pressure data are updated through the weight data, the effective value of the pressure data is calculated by combining the updated pressure data, and the accuracy of the effective value of the pressure data is ensured.
Further: the weight data is set according to the change rate of the pressure change rate, and the expression of the change rate of the pressure change rate is specifically:
in the method, in the process of the invention,is->And->Difference of->Is->And->Difference of->As pressure datax 1 And pressure datax 2 Difference of->As pressure datax 2 And pressure datax 3 Difference of->As pressure datax M-2 And pressure datax M-1 Difference of->As pressure datax M-1 And pressure datax M Is a difference in (c).
The beneficial effects of the above-mentioned further scheme are: the effective value of the pressure data is calculated in real time in the boosting process, the pressure data condition of the tested piece is monitored in real time, and the reliability of water seal pressure test of well control equipment can be effectively improved.
Further: in the step S5, the method for the high-pressure test is specifically as follows:
and controlling the tested piece to be boosted until the effective value of the pressure data reaches the maximum pressure value of the water seal pressure test system, maintaining the pressure for a set time under the state of the maximum pressure value, and reducing the pressure by controlling the tested piece after the pressure maintaining is finished, so as to complete the high-pressure test.
The system comprises a hydraulic workstation module, a hydraulic equipment module, a blowout preventer module and a hydraulic clamp module, wherein the hydraulic workstation module is respectively connected with the blowout preventer module, the hydraulic equipment module and the hydraulic clamp module;
the hydraulic pressure equipment module is used for injecting pressurized water into a tested piece, the blowout preventer module is used for preventing blowout in water seal pressure test, the hydraulic clamp module is used for clamping the tested piece and the blowout preventer module, and the hydraulic workstation module is used for controlling each module to develop water seal pressure test.
Further: the hydraulic working station module is provided with a hydraulic working station and a pressure acquisition module which are connected with each other, the hydraulic working station is further connected with the hydraulic clamp module and the blowout preventer module respectively, the hydraulic working station is used for controlling the opening and closing of the blowout preventer module and the hydraulic clamp module, and the pressure acquisition module is used for acquiring pressure data of a tested piece.
Further: the hydraulic equipment module comprises a frequency converter, an electric pressure testing pump and an integrated valve which are sequentially connected, wherein the frequency converter is further connected with the hydraulic working station, and the integrated valve is further connected with the tested piece.
The beneficial effects of the invention are as follows:
(1) The invention provides a water sealing pressure test method of well control equipment, which aims to ensure the accuracy of pressure data effective values by calculating the pressure data effective values in the boosting process, can meet the condition that the pressure values set in the pressure maintaining process cannot be exceeded under any conditions, provides effective safety guarantee and foundation for site construction and improves the working efficiency of the whole water sealing pressure test.
(2) The water sealing pressure test system of the well control equipment provided by the invention can automatically control the pressure increasing, pressure maintaining and pressure reducing processes, reduce the complexity of water sealing pressure test, accurately calculate pressure data in the water sealing pressure test process, and effectively improve the reliability and safety of the pressure test of the well control equipment.
Drawings
FIG. 1 is a flow chart of a method for water seal pressure testing of well control equipment.
FIG. 2 is a schematic diagram of a well control equipment water seal pressure test system.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and all the inventions which make use of the inventive concept are protected by the spirit and scope of the present invention as defined and defined in the appended claims to those skilled in the art.
As shown in fig. 1, in one embodiment of the present invention, a water seal pressure test method for well control equipment includes the steps of:
s1, controlling a water pressure equipment module to inject pressurized water into a tested piece to enable the pressure of the tested piece to rise, initializing a counting unit and collecting pressure data of the tested piece;
s2, acquiring currently acquired pressure data, judging whether the currently acquired pressure data is larger than a supercharging threshold value, if so, calculating a pressure data effective value according to the numerical value of a counting unit, entering S5, and if not, entering S3;
s3, obtaining a pressure data set according to the currently acquired pressure data, and calculating a pressure change rate;
s4, judging whether the pressure change rate is larger than a change rate threshold corresponding to the currently acquired pressure data, if so, adding 1 to the counting unit, returning to S2, and if not, returning to S2;
and S5, performing a high-pressure test according to the effective value of the pressure data to obtain a pressure test report of the pressure curve of the tested piece, and completing the water seal pressure test of the well control equipment.
The step S3 comprises the following substeps:
s31, acquiring a group of pressure data continuously acquired in a preset time period before the currently acquired pressure data, and obtaining a pressure data group;
s32, acquiring currently acquired pressure data, and replacing the oldest pressure data in the pressure data set with the currently acquired pressure data to obtain a new pressure data set;
s33, calculating the pressure change rate according to the new pressure data set.
In this embodiment, the rate of change of the pressure data in a short time can be obtained by calculating the pressure change rate and considering the magnitude of the change rate threshold, if the pressure change rate is greater than the change rate threshold, the pressure data is continuously increased, and an error exists between the currently collected pressure data and the true value, so that it is necessary to calculate the effective value of the pressure data to update the current pressure data, and the accuracy of the pressure data in the boosting process is improved.
In the step S33, the pressure change rate is calculatedIExpression of (2)The formula is specifically as follows:
in the method, in the process of the invention,Mas the total number of pressure data in the pressure data set,T s for the sampling period of the pressure data,as pressure datax 1 And pressure datax 2 Difference of->As pressure datax M-1 And pressure datax M Is a difference in (c).
In the S2, calculating the effective value of the pressure dataYThe expression of (2) is specifically:
in the method, in the process of the invention,x t is thattThe pressure data collected at the moment of time,x t-i is thatt-iThe pressure data collected at the moment of time,x t-M is thatt-MThe pressure data collected at the moment of time,tfor the current moment of time,iis a time ordinal number, andi=0,…,M，is thatt-iThe weight data of the moment of time,is thatt-MWeight data of time of day->Is thattThe weight data of the moment of time,Nfor the count threshold value,nis the count cell value.
According to the invention, different weight data are assigned to each pressure data, the currently acquired pressure data is corrected according to the pressure data and the counting unit value after the weight data are assigned, so that the calculated effective value of the pressure data is more accurate, in the process of calculating the effective value of the pressure data, the introduced weight data are set according to the change rate of the pressure change rate, namely, the pressure change rate is gradually increased in the process of rising the pressure data, and the error of the pressure data acquired in the process is increased, so that the acquired pressure data are updated through the weight data, the effective value of the pressure data is calculated by combining the updated pressure data, and the accuracy of the effective value of the pressure data is ensured.
Wherein the rate of change of the rate of pressure change is calculatedJThe expression of (2) is specifically:
in the method, in the process of the invention,is->And->Difference of->Is->And->Difference of->As pressure datax 1 And pressure datax 2 Difference of->As pressure datax 2 And pressure datax 3 Difference of->As pressure datax M-2 And pressure datax M-1 Difference of->As pressure datax M-1 And pressure datax M Is a difference in (c).
According to the invention, the weight data is set according to the change rate of the pressure change rate and the change threshold value of the preset change rate, so that the accuracy and reliability of calculating the pressure data can be improved, and the method is better suitable for various complicated pressure change modes of the tested piece.
In the step S5, the method for the high-pressure test is specifically as follows:
and controlling the tested piece to be boosted until the effective value of the pressure data reaches the maximum pressure value of the water seal pressure test system, maintaining the pressure for a set time under the state of the maximum pressure value, and reducing the pressure by controlling the tested piece after the pressure maintaining is finished, so as to complete the high-pressure test.
In the embodiment, the effective value of the pressure data is calculated in real time in the boosting process, the pressure data condition of the tested piece is monitored in real time, and the reliability of water seal pressure test of well control equipment can be effectively improved.
As shown in fig. 2, the water seal pressure test system of the well control equipment comprises a hydraulic work station module, a hydraulic equipment module, a blowout preventer module and a hydraulic clamp module, wherein the hydraulic work station module is respectively connected with the blowout preventer module, the hydraulic equipment module and the hydraulic clamp module;
the hydraulic pressure equipment module is used for injecting pressurized water into a tested piece, the blowout preventer module is used for preventing blowout in water seal pressure test, the hydraulic clamp module is used for clamping the tested piece and the blowout preventer module, and the hydraulic workstation module is used for controlling each module to develop water seal pressure test.
The hydraulic working station module is provided with a hydraulic working station and a pressure acquisition module which are connected with each other, the hydraulic working station is further connected with the hydraulic clamp module and the blowout preventer module respectively, the hydraulic working station is used for controlling the opening and closing of the blowout preventer module and the hydraulic clamp module, and the pressure acquisition module is used for acquiring pressure data of a tested piece.
The hydraulic equipment module comprises a frequency converter, an electric pressure testing pump and an integrated valve which are sequentially connected, wherein the frequency converter is further connected with the hydraulic working station, and the integrated valve is further connected with the tested piece.
The beneficial effects of the invention are as follows: the invention provides a water sealing pressure test method of well control equipment, which aims to ensure the accuracy of pressure data effective values by calculating the pressure data effective values in the boosting process, can meet the condition that the pressure values set in the pressure maintaining process cannot be exceeded under any conditions, provides effective safety guarantee and foundation for site construction and improves the working efficiency of the whole water sealing pressure test.
The water sealing pressure test system of the well control equipment provided by the invention can automatically control the pressure increasing, pressure maintaining and pressure reducing processes, reduce the complexity of water sealing pressure test, accurately calculate pressure data in the water sealing pressure test process, and effectively improve the reliability and safety of the pressure test of the well control equipment.
In the description of the present invention, it should be understood that the terms "center," "thickness," "upper," "lower," "horizontal," "top," "bottom," "inner," "outer," "radial," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be interpreted as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defined as "first," "second," "third," or the like, may explicitly or implicitly include one or more such feature.
Claims (9)
1. The water seal pressure test method for the well control equipment is characterized by comprising the following steps of:
s1, controlling a water pressure equipment module to inject pressurized water into a tested piece to enable the pressure of the tested piece to rise, initializing a counting unit and collecting pressure data of the tested piece;
s2, acquiring currently acquired pressure data, judging whether the currently acquired pressure data is larger than a supercharging threshold value, if so, calculating a pressure data effective value according to the numerical value of a counting unit, entering S5, and if not, entering S3;
s3, obtaining a pressure data set according to the currently acquired pressure data, and calculating a pressure change rate;
s4, judging whether the pressure change rate is larger than a change rate threshold corresponding to the currently acquired pressure data, if so, adding 1 to the counting unit, returning to S2, and if not, returning to S2;
and S5, performing a high-pressure test according to the effective value of the pressure data to obtain a pressure test report of the pressure curve of the tested piece, and completing the water seal pressure test of the well control equipment.
2. The well control equipment water seal pressure test method of claim 1, wherein S3 comprises the following sub-steps:
s31, acquiring a group of pressure data continuously acquired in a preset time period before the currently acquired pressure data, and obtaining a pressure data group;
s32, acquiring currently acquired pressure data, and replacing the oldest pressure data in the pressure data set with the currently acquired pressure data to obtain a new pressure data set;
s33, calculating the pressure change rate according to the new pressure data set.
3. The well control equipment water seal pressure test method according to claim 2, wherein in S33, a pressure change rate is calculatedIThe expression of (2) is specifically:
in the method, in the process of the invention,Mas the total number of pressure data in the pressure data set,T s for the sampling period of the pressure data,as pressure datax 1 And pressure datax 2 Difference of->As pressure datax M-1 And pressure datax M Is a difference in (c).
4. The well control equipment water seal pressure test method according to claim 1, wherein in S2, a pressure data effective value is calculatedYThe expression of (2) is specifically:
in the method, in the process of the invention,x t is thattThe pressure data collected at the moment of time,x t-i is thatt-iThe pressure data collected at the moment of time,x t-M is thatt-MThe pressure data collected at the moment of time,tfor the current moment of time,iis a time ordinal number, andi=0,…,M，is thatt-iWeight data of time of day->Is thatt-MWeight data of time of day->Is thattThe weight data of the moment of time,Nfor the count threshold value,nis the count cell value.
5. The well control equipment water seal pressure test method according to claim 4, wherein the weight data is set according to the change rate of the pressure change rate, and the expression of the change rate of the pressure change rate is specifically:
in the method, in the process of the invention,is->And->Difference of->Is->And->Difference of->As pressure datax 1 And pressure datax 2 Difference of->As pressure datax 2 And pressure datax 3 Difference of->As pressure datax M-2 And pressure datax M-1 Difference of->As pressure datax M-1 And pressure datax M Is a difference in (c).
6. The water seal pressure test method of well control equipment according to claim 1, wherein in S5, the method of the high pressure test specifically comprises:
and controlling the tested piece to be boosted until the effective value of the pressure data reaches the maximum pressure value of the water seal pressure test system, maintaining the pressure for a set time under the state of the maximum pressure value, and reducing the pressure by controlling the tested piece after the pressure maintaining is finished, so as to complete the high-pressure test.
7. A system of the water seal pressure test method of well control equipment according to any one of claims 1-6, wherein the system comprises a hydraulic workstation module, a hydraulic equipment module, a blowout preventer module and a hydraulic clamp module, and the hydraulic workstation module is respectively connected with the blowout preventer module, the hydraulic equipment module and the hydraulic clamp module;
the hydraulic pressure equipment module is used for injecting pressurized water into a tested piece, the blowout preventer module is used for preventing blowout in water seal pressure test, the hydraulic clamp module is used for clamping the tested piece and the blowout preventer module, and the hydraulic workstation module is used for controlling each module to develop water seal pressure test.
8. The system of claim 7, wherein the hydraulic station module is provided with a hydraulic station and a pressure acquisition module which are connected with each other, the hydraulic station is further connected with the hydraulic clamp module and the blowout preventer module respectively, the hydraulic station is used for controlling the opening and closing of the blowout preventer module and the hydraulic clamp module, and the pressure acquisition module is used for acquiring pressure data of a tested piece.
9. The system of claim 8, wherein the hydraulic equipment module comprises a frequency converter, an electric pressure test pump and an integrated valve connected in sequence, the frequency converter further connected with the hydraulic workstation, and the integrated valve further connected with the tested piece.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101960087A (en) * | 2007-12-31 | 2011-01-26 | 普拉德研究及开发股份有限公司 | The system and method that is used for the well data analysis |
| CN103556987A (en) * | 2013-11-18 | 2014-02-05 | 中国石油化工股份有限公司 | Hydraulic test system of well control device for oil and gas fields |
| US9631448B1 (en) * | 2016-08-03 | 2017-04-25 | Schlumberger Technology Corporation | Distibuted control system for well application |
| CN109387336A (en) * | 2018-12-10 | 2019-02-26 | 美钻深海能源科技研发（上海）有限公司 | A kind of experimental rig and method for the identification of non-metallic seal sealing performance |
| CN110360461A (en) * | 2019-07-31 | 2019-10-22 | 广州特种承压设备检测研究院 | Pressure pipeline monitors system, method, apparatus and computer readable storage medium |
| CN111948059A (en) * | 2020-08-07 | 2020-11-17 | 上海森松制药设备工程有限公司 | Hydrostatic test method, device, equipment and storage medium |
| CN113223739A (en) * | 2021-04-16 | 2021-08-06 | 中广核工程有限公司 | Nuclear power station containment test system under depth defense |
-
2023
- 2023-10-30 CN CN202311415237.1A patent/CN117147075A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101960087A (en) * | 2007-12-31 | 2011-01-26 | 普拉德研究及开发股份有限公司 | The system and method that is used for the well data analysis |
| CN103556987A (en) * | 2013-11-18 | 2014-02-05 | 中国石油化工股份有限公司 | Hydraulic test system of well control device for oil and gas fields |
| US9631448B1 (en) * | 2016-08-03 | 2017-04-25 | Schlumberger Technology Corporation | Distibuted control system for well application |
| CN109387336A (en) * | 2018-12-10 | 2019-02-26 | 美钻深海能源科技研发（上海）有限公司 | A kind of experimental rig and method for the identification of non-metallic seal sealing performance |
| CN110360461A (en) * | 2019-07-31 | 2019-10-22 | 广州特种承压设备检测研究院 | Pressure pipeline monitors system, method, apparatus and computer readable storage medium |
| CN111948059A (en) * | 2020-08-07 | 2020-11-17 | 上海森松制药设备工程有限公司 | Hydrostatic test method, device, equipment and storage medium |
| CN113223739A (en) * | 2021-04-16 | 2021-08-06 | 中广核工程有限公司 | Nuclear power station containment test system under depth defense |
Non-Patent Citations (2)
| Title |
|---|
| 姚登樽;王玮;范玉然;陶玉霞;: "温度对0.8设计系数下油气管道强度试压过程的影响", 油气储运, no. 09 * |
| 苏同波;聂勇;刘亚熙;: "一种用于精确水压控制的压力传递装置", 装备制造技术, no. 08 * |
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