CN202031536U - Novel control system of well-mouth safety valve - Google Patents

Novel control system of well-mouth safety valve Download PDF

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Publication number
CN202031536U
CN202031536U CN2011200482311U CN201120048231U CN202031536U CN 202031536 U CN202031536 U CN 202031536U CN 2011200482311 U CN2011200482311 U CN 2011200482311U CN 201120048231 U CN201120048231 U CN 201120048231U CN 202031536 U CN202031536 U CN 202031536U
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China
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valve
connected
control system
accumulator
supply circuit
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CN2011200482311U
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Chinese (zh)
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晏连开
邓红兵
郭海燕
陈仕贵
黄崇建
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中国石油集团川庆钻探工程有限公司
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Abstract

The utility model discloses a novel control system of a well-mouth safety valve, which comprises an energy accumulator, an oil supply loop and a control loop, wherein the energy accumulator is connected with a stop valve; the oil supply loop comprises an oil tank; the oil tank is connected with a plunger pump through a check valve; the plunger pump is connected with the stop valve of the energy accumulator through two check valves; the control loop comprises a motor connected with the plunger pump and a motor controller connected with the motor; the motor controller and the stop valve of the energy accumulator are connected; a pressure gauge and a hand-operated direction valve are sequentially connected with a pipeline between the check valve of the oil supply loop and the stop valve of the energy accumulator; the hand-operated direction valve is connected with the safety valve through the stop valve; and the pressure gauge is connected between the stop valve and the safety valve. The novel control system does not rely on compressed air so as to simplify the structure of the system; and the novel control system has more reliable performance and longer service life, is more convenient in maintenance and suitable for more extensive occasions of production operation, and can work normally particularly under the mal-condition with an extremely low temperature.

Description

新型井口安全阀控制系统 The new wellhead valve control system

技术领域 FIELD

[0001] 本实用新型涉及一种开采石油或天然气的设备,尤其涉及一种新型井口安全阀控制系统。 [0001] The present invention relates to an oil or gas extraction device, in particular it relates to a novel valve control system wellhead.

背景技术 Background technique

[0002] 目前,我国国内西北地区绝大部分油气井的安全阀的开启压力在15000 psi(lOOMPa)左右,而已有装置采用的传统液压器件,最高工作压力只能达到5000 psi(35MPa),无法满足使用要求。 [0002] Currently, the safety valve opening pressure of the vast majority of China's domestic oil and gas wells northwest at about 15000 psi (lOOMPa), it has a conventional hydraulic devices used in the device, it can only reach a maximum operating pressure of 5000 psi (35MPa), not meet the requirements. 由于使用现场为天然气浓度极高的易燃易爆场合,要求防爆等级达到MD II BT4以上,而已有装置中采用电动液压泵和电磁阀,工作时会使系统发热升温并容易产生电火花,存在严重的安全隐患,且现有技术只能对地面安全阀进行控制, 而无法对井下安全阀进行控制。 Field natural gas due to the use of high concentrations of explosive situations, to achieve the required level of proof MD II BT4 above, it means there is employed an electric pump and an electromagnetic valve, the system will heat up and work easily, and a spark, the presence of a serious security risk, and only on the ground prior art valve control, and can not be controlled subsurface safety valves. 油气井生产时需要长时间维持开井状态,这样对井口安全阀控制装置的稳压性要求很高,而已有装置中的控制阀为滑阀结构,泄漏量太大,在无人值班时无法维持油气井正常生产。 Takes a long time to maintain the production of oil and gas wells wells open state, so that the high requirements on regulated wellhead valve control means, it has a control valve means is a spool valve structure, the amount of leakage is too large when unattended maintain normal production of oil and gas wells. 当采油气管线中压力波动超出设定范围时,控制系统应立即关闭井口安全阀,防止事故发生。 When mining oil and gas pipeline pressure fluctuation exceeds a preset range, the control system should be immediately shut in the well safety valve, to prevent accidents. 而已有装置中无法实现该功能。 It can not be achieved with a device in the function.

[0003] 为了解决上述问题,中国专利号“200510089173. 6”公开了一种井口安全阀控制系统,其申请日为2005年8月5号,公开日为2007年2月7号。 [0003] In order to solve the above problem, Chinese patent number "200510089173.6" discloses a wellhead valve control system, which is filed on August 5, 2005, to February 7, 2007 Publication date. 虽然解决了上述部分问题, 但该专利技术仍然存在如下不足:采用气驱增压泵作为动力装置,其结构相对复杂,配套装置要求较高,且现场必须有压缩空气作为动力源。 While solving the above problems part, but there is still insufficient patented technology: use of gas as a driving force booster pump apparatus, which structure is relatively complex, requires high supporting means, and the field must be compressed air as a power source. 长期使用可靠性较差,尤其是在低温环境更为明显,不能满足井场较差环境的要求。 Long-term use of poor reliability, especially in low temperature environment is more obvious, can not meet the requirements of wellsite poor environment.

实用新型内容 SUMMARY

[0004] 本实用新型的目的在于克服现有井口安全阀控制系统存在的上述问题,提供一种新型井口安全阀控制系统,本实用新型不再依赖压缩空气,从而简化了系统结构,性能更加可靠,维修更加方便,使用寿命更长,适用于更广泛的生产作业场所使用,尤其是在温度极低的恶劣条件下也能正常工作。 [0004] The present invention aims to overcome the above-described problems of the conventional valve control system wellhead, the wellhead to provide a novel valve control system, the present invention is not dependent on compressed air, thereby simplifying the system structure, more reliable performance maintenance more convenient, longer life, suitable for the production of a wider range of workplace use, can also work especially at very low temperatures harsh conditions.

[0005] 为实现上述目的,本实用新型采用的技术方案如下: [0005] To achieve the above object, the present invention adopts the technical solution as follows:

[0006] 一种新型井口安全阀控制系统,包括蓄能器,其特征在于:还包括供油回路和控制回路,蓄能器与截止阀连接;所述供油回路包括油箱,油箱通过单向阀与柱塞泵连接,柱塞泵通过两个单向阀与蓄能器的截止阀连接;所述控制回路包括与柱塞泵连接的电机和与电机连接的电机控制器,电机控制器与蓄能器的截止阀连接;所述供油回路的单向阀与蓄能器的截止阀之间的管线上还依次连接有压力表和手动换向阀,手动换向阀通过截止阀与安全阀连接,截止阀与安全阀之间还连接有压力表。 [0006] A novel wellhead valve control system includes an accumulator, characterized in that: further comprising a supply circuit and a control circuit connected to the accumulator and the shut-off valve; said supply circuit comprises a tank, the tank passes through the check and the valve piston is connected, via two-way valve piston and the accumulator stop valve; said control circuit comprises a motor and a motor controller connected to the piston and connected with the motor, the motor controller shut-off valve is connected to the accumulator; shutoff valve on the line between the check valve and the oil supply circuit of the accumulator pressure gauge and further sequentially connected with a manual valve, the manual shut-off valve and the safety valve by a valve connected between the valve and the cut-off valve is also connected with a pressure gauge.

[0007] 本实用新型还包括手动供油回路,所述手动供油回路包括与油箱连接的进油端单向阀和与进油端单向阀连接的手动泵,手动泵通过出油端单向阀连接到供油回路的两个单向阀之间的管线上。 [0007] The present invention further includes a manual supply circuit, the supply circuit comprises a manual hand pump into the oil tank is connected to the end of the check valve and the intake side check valve connected to the oil, the oil pump via hand end of single connected to the line between the two check valves to the valve supply circuit.

[0008] 所述电机控制器还连接有压力开关,电机控制器通过压力开关器与蓄能器的截止阀连接。 [0008] The motor controller is further connected to a pressure switch, the motor controller is connected via shut-off valve with the pressure switch of the accumulator.

[0009] 所述蓄能器的截止阀与手动换向阀之间还通过管线连接有截止阀。 [0009] The shut-off valve between the accumulator and the manual valve has a shut-off valve is also connected through line.

[0010] 所述供油回路的两个单向阀之间还通过管线连接有溢流阀。 [0010] The two-way valve between the oil supply circuit is also connected through line relief valve.

[0011] 采用本实用新型的优点在于: [0011] The present invention is advantageous in that:

[0012] 一、本实用新型包括供油回路和控制回路,蓄能器与截止阀连接;所述供油回路包括油箱,油箱通过单向阀与柱塞泵连接,柱塞泵通过两个单向阀与蓄能器的截止阀连接;所述控制回路包括与柱塞泵连接的电机和与电机连接的电机控制器,电机控制器与蓄能器的截止阀连接,与采用气驱增压泵作为动力装置的现有井口安全阀控制系统相比较,性能更加可靠,维修更加方便,使用寿命更长,并且由于采用电源作为动力源,不再依赖压缩空气, 从而简化了系统结构,适用于更广泛的生产作业场所使用,尤其是在温度极低的恶劣条件下也能正常工作。 [0012] First, the present invention includes a supply circuit and a control circuit connected to the accumulator and the shut-off valve; said supply circuit comprises a tank, the tank through a check valve connected to the piston, piston by two single cut-off valve is connected to the accumulator; said control circuit includes a motor and a plunger pump connected with the motor and a motor controller connected to the motor controller and the shut-off valve connected to the accumulator, the use of pressurized gas flooding as a conventional pump wellhead valve system for a power control device in comparison more reliable, easier maintenance, longer life, and thanks to the power supply as a power source, compressed air is no longer dependent on, thereby simplifying the system structure for the production of a wider range of workplace use, can also work especially at very low temperatures harsh conditions.

[0013] 二、本实用新型中,电机控制器还连接有压力开关,电机控制器通过压力开关器与蓄能器的截止阀连接,所需压力大小可以通过压力开关进行方便的调整,并且增加了可靠性。 [0013] Second, the present invention, the motor controller is further connected to a pressure switch, the motor controller is connected via shut-off valve with accumulator pressure switch can be conveniently adjusted by the pressure switch size desired pressure, and increasing the reliability.

[0014] 三、本实用新型还包括手动供油回路,所述手动供油回路包括与油箱连接的进油端单向阀和与进油端单向阀连接的手动泵,手动泵通过出油端单向阀连接到供油回路的两个单向阀之间的管线上,手动泵作为系统的辅助装置,在系统无电源的情况下可以采用手动泵来为系统提供动力。 [0014] Third, the present invention further includes a manual supply circuit, the supply circuit comprises a manual hand pump into the oil tank is connected to the end of the check valve and the intake side check valve connected to the oil, the oil pump via the manual end of the one-way valve connected to a line between the supply circuit of the two check valves, manual pump as an auxiliary device of the system, in the system without power supply can be used to power the manual pump systems.

[0015] 四、本实用新型中,供油回路的单向阀与蓄能器的截止阀之间的管线上还依次连接有压力表和手动换向阀,手动换向阀通过截止阀与安全阀连接,截止阀与安全阀之间还连接有压力表,可以方便地控制地面安全阀的关闭和开启,并且压力大小可以通过两个压力表进行直观的显示,结构简单、维修方便、工作可靠。 [0015] Fourth, the present invention, the shut-off valve on the line between the check valve and the accumulator in sequence the supply circuit is further connected with a pressure gauge and a manual valve, the manual shut-off valve and the safety valve by a valve connected between the valve and the cut-off valve is also connected with a pressure gauge, you can easily control the opening and closing valve surface, and the magnitude of the pressure may be visually displayed by the two pressure gauges, simple structure, convenient maintenance, reliable .

附图说明 BRIEF DESCRIPTION

[0016] 图1为本实用新型的控制原理图 [0016] Figure 1 is a control schematic invention

[0017] 图中标记为:1、油箱,2、单向阀A,3、手动泵,4、单向阀B,5、截止阀A,6、蓄能器,7、 压力表A,8、压力表B,9、安全阀,10、截止阀B,11、手动换向阀,12、截止阀C,13、单向阀C, 14、溢流阀,15、单向阀D,16、柱塞泵,17、压力开关,18、电机控制器,19、单向阀E。 [0017] FIG labeled: 1, a tank 2, the check valve A, 3, manual pump 4, the check valve B, 5, closing valves A, 6, an accumulator 7, a pressure gauge A, 8 , pressure gauge B, 9, valve 10, shutoff valve B, 11, a manual valve 12, shutoff valve C, 13, the check valve C, 14, relief valve 15, the check valve D, 16 , piston 17, pressure switch 18, the motor controller 19, the check valve E.

具体实施方式 Detailed ways

[0018] 一种新型井口安全阀控制系统,包括蓄能器,还包括供油回路和控制回路,蓄能器与截止阀连接;所述供油回路包括油箱,油箱通过单向阀与柱塞泵连接,柱塞泵通过两个单向阀与蓄能器的截止阀连接;所述控制回路包括与柱塞泵连接的电机和与电机连接的电机控制器,电机控制器与蓄能器的截止阀连接;所述供油回路的单向阀与蓄能器的截止阀之间的管线上还依次连接有压力表和手动换向阀,手动换向阀通过截止阀与安全阀连接,截止阀与安全阀之间还连接有压力表。 [0018] A novel wellhead valve control system includes an accumulator, further comprising a supply circuit and a control circuit connected to the accumulator and the shut-off valve; said supply circuit comprises a tank, the tank via the check valve with the plunger connected to the pump cut-off valve connected to the piston accumulator through two-way valve; said control circuit comprises a motor and a motor controller connected to the piston and connected with the motor, the motor controller and accumulator cut-off valve is connected; shut-off valve on the line between the check valve and the oil supply circuit of the accumulator pressure gauge and further sequentially connected with a manual valve, the manual valve is connected through a shut-off valve and safety valve, closing It is also connected between the valve and the pressure gauge valve. 本实用新型中的电机优选为隔离防爆电机。 The present invention is preferably isolated from the motor explosion-proof motor.

[0019] 本实用新型还包括手动供油回路,所述手动供油回路包括与油箱连接的进油端单向阀和与进油端单向阀连接的手动泵,手动泵通过出油端单向阀连接到供油回路的两个单向阀之间的管线上。 [0019] The present invention further includes a manual supply circuit, the supply circuit comprises a manual hand pump into the oil tank is connected to the end of the check valve and the intake side check valve connected to the oil, the oil pump via hand end of single connected to the line between the two check valves to the valve supply circuit. [0020] 本实用新型的优选实施方式为,电机控制器还连接有压力开关,电机控制器通过压力开关器与蓄能器的截止阀连接。 [0020] The present invention is a preferred embodiment, the motor controller is further connected to a pressure switch, the motor controller through the pressure switch with the shut-off valve connected to the accumulator.

[0021] 本实用新型的又一优选实施方式为,蓄能器的截止阀与手动换向阀之间还通过管线连接有截止阀。 [0021] The present invention is yet another preferred embodiment, shut-off valve is also connected through line between the shutoff valve and the manual valve to the accumulator.

[0022] 本实用新型的又一优选实施方式为,供油回路的两个单向阀之间还通过管线连接有溢流阀。 [0022] The present invention is yet another preferred embodiment, the oil supply circuit between the two check valves is further connected via a line with a relief valve.

[0023] 柱塞泵在隔爆电机带动下为系统供油,系统压力储存在蓄能器中,所需压力大小可通过压力开关进行调整。 [0023] In the explosion-proof motor driven piston pump stored in the accumulator, the size of the required pressure can be adjusted by the oil pressure switch for the system, the system pressure. 井口安全阀处于常开状态,需要关闭则通过操作手动换向阀即可实施。 Wellhead valve in a normally open state, it is necessary to close by operating the manual valve can be implemented. 压力大小由压力表显示。 By the size of the pressure gauge display. 系统压力过高,则通过调节溢流阀来操作。 The system pressure is too high, the relief valve is operated by adjusting. 手动泵作为系统的辅助装置,在系统无电源的情况下由它来为系统提供动力。 Hand pump as an auxiliary device of the system, in the system without power supply from the system to power it.

[0024] 接通电源后,电机带动柱塞泵工作,将油箱中的液压油注入蓄能器,从而建立系统压力。 [0024] When powered, motor driven working piston pump, the hydraulic oil tank accumulator injection to establish the system pressure. 压力开关对系统压力进行实时检测,当系统压力达到设定值时,电机停止工作。 Pressure switch system pressure detected in real time, when the system pressure reaches the set value, the motor stops. 当系统压力低于设定值时,电机自动带动柱塞泵工作为系统提供油压。 When the system pressure is below the set value, the motor is automatically driven piston pump working hydraulic pressure is supplied to the system.

Claims (5)

1. 一种新型井口安全阀控制系统,包括蓄能器,其特征在于:还包括供油回路和控制回路,蓄能器与截止阀连接;所述供油回路包括油箱,油箱通过单向阀与柱塞泵连接,柱塞泵通过两个单向阀与蓄能器的截止阀连接;所述控制回路包括与柱塞泵连接的电机和与电机连接的电机控制器,电机控制器与蓄能器的截止阀连接;所述供油回路的单向阀与蓄能器的截止阀之间的管线上还依次连接有压力表和手动换向阀,手动换向阀通过截止阀与安全阀连接,截止阀与安全阀之间还连接有压力表。 A new wellhead valve control system includes an accumulator, characterized in that: further comprising a supply circuit and a control circuit connected to the accumulator and the shut-off valve; said supply circuit comprises a tank, the tank through a check valve and a plunger pump is connected, via two-way valve piston and the accumulator stop valve; and the motor controller comprises a control circuit connected to the motor and a plunger pump connected with the motor and the motor controller and storage shut-off valve is connected to the transducer; shut-off valve on the line between the check valve and the oil supply circuit of the accumulator pressure gauge and further sequentially connected with a manual valve, the manual shut-off valve and the safety valve through the valve connection between the valve and the cut-off valve is also connected with a pressure gauge.
2.根据权利要求1所述的新型井口安全阀控制系统,其特征在于:还包括手动供油回路,所述手动供油回路包括与油箱连接的进油端单向阀和与进油端单向阀连接的手动泵, 手动泵通过出油端单向阀连接到供油回路的两个单向阀之间的管线上。 2. New wellhead valve control system according to claim 1, characterized in that: further comprising a supply circuit manually, the manual feed oil supply circuit including an oil tank is connected to the end of the check valve and the intake end of the oil alone a manual valve connected to the pump, a hand pump connected to the line between the two check valves through the oil supply circuit side check valve.
3.根据权利要求1或2所述的新型井口安全阀控制系统,其特征在于:所述电机控制器还连接有压力开关,电机控制器通过压力开关器与蓄能器的截止阀连接。 The new wellhead valve control system according to claim 1, wherein: said motor controller is further connected to a pressure switch, the motor controller through the pressure switch with the shut-off valve connected to the accumulator.
4.根据权利要求1或2所述的新型井口安全阀控制系统,其特征在于:所述蓄能器的截止阀与手动换向阀之间还通过管线连接有截止阀。 The new wellhead valve control system according to claim 1, wherein: the cutoff valve between the accumulator and the manual valve is further connected via a line shut-off valve.
5.根据权利要求4所述的新型井口安全阀控制系统,其特征在于:所述供油回路的两个单向阀之间还通过管线连接有溢流阀。 5. New wellhead valve control system as claimed in claim 4, wherein: the relief valve is further connected via a line between the two check valves in the oil supply circuit.
CN2011200482311U 2011-02-25 2011-02-25 Novel control system of well-mouth safety valve CN202031536U (en)

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CN105465067A (en) * 2015-12-09 2016-04-06 沈阳飞研航空设备有限公司 Multifunction pump
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