CN104006293A - Nitrogen stand-by system of ground blowout preventer control device - Google Patents
Nitrogen stand-by system of ground blowout preventer control device Download PDFInfo
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- CN104006293A CN104006293A CN201310058732.1A CN201310058732A CN104006293A CN 104006293 A CN104006293 A CN 104006293A CN 201310058732 A CN201310058732 A CN 201310058732A CN 104006293 A CN104006293 A CN 104006293A
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Abstract
The invention discloses a nitrogen stand-by system of a ground blowout preventer control device and belongs to the technical field of petroleum drilling control. The nitrogen stand-by system provides high-pressure gas serving as an emergency power source for the ground blowout preventer control device and comprises a high-pressure nitrogen gas cylinder, a valve and relevant pipelines. The relevant pipelines of the nitrogen stand-by system include at least a first group of pipelines, a second group of pipelines, a third group of pipelines and a fourth group of pipelines. A nitrogen pressure reducing valve, a nitrogen cylinder valve and a high-pressure nitrogen cylinder are sequentially arranged on the first group of pipelines of the nitrogen stand-by system, wherein the nitrogen pressure reducing valve is connected with a driller's console of the ground blowout preventer control device and a gas inlet of an auxiliary console through an external hose. When an emergency situation occurs in a field and a well is required to be rapidly closed, emergency auxiliary energy is provided for a control manifold of the ground blowout preventer control device, and blowout and other major accidents caused by the fact that an energy accumulator group or a pump group of the ground blowout preventer control device cannot provide a power fluid for the control manifold.
Description
Technical field
The present invention relates to oil drilling well control technical field, particularly a kind of nitrogen standby system of control system of ground preventer.
Background technique
Control system of ground preventer is the visual plant of controlling well head blowout preventer set and the throttle valve that surges, kill valve in oil and gas well drilling, is the safety equipment that prevents blowout indispensability in drillng operation.
Prior art control system of ground preventer is mainly made up of remote console, hydraulic line, driller's console or auxiliary console, air umbilical; Described driller's console or auxiliary console are arranged on control system of ground preventer rig floor conventionally, make driller realize remote control to remote console easily.Described remote console is made up of base, fuel tank, pump group, Accumulator arrangements, control manifold, various valve member, instrument and electric control box etc.; Major function with the remote console of manual pressure regulating valve is: produced high voltage control liquid and be stored in Accumulator arrangements by pump group, in the time of needs open and close preventer, high voltage control liquid from Accumulator arrangements is assigned to each control object by the 3-position 4-way rotary valve of control manifold, in preventer; Described remote console has long-range pneumatic voltage regulation function, and in the time of source of the gas catastrophic failure, operation is controlled and closed, and pilot pressure can revert to initial set value automatically.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
But, if happened suddenly at the scene, blowout need to be shunt in a well in emergency circumstances, and the Accumulator arrangements of control system of ground preventer or pump group occur surprisingly causing liquid measure or underpressure and can not provide power fluid for control manifold time, to cause shunting in a well in time and blowout will occur, and can lead to serious accident.For this reason, the necessary supporting facility of meeting an urgent need that increases on control system of ground preventer.
Summary of the invention
In order to solve the problem of prior art, the embodiment of the present invention provides a kind of nitrogen standby system of control system of ground preventer.In the time that scene is in an emergency the rapid closing well of needs, the ball valve for subsequent use of the control manifold of this emergent supporting facility nitrogen standby system and control system of ground preventer is connected, can be the manifold supply pressurized gas of control system of ground preventer with emergency cut-off wellhead blowout preventor, avoid occurring blowout, reduce serious accident.Described technological scheme is as follows:
A kind of nitrogen standby system of control system of ground preventer, this system provides pressurized gas as emergency power supply for control system of ground preventer, comprise high-pressure nitrogen bottle, valve, associated pipe, the associated pipe of described nitrogen standby system at least comprises first group of pipeline, second group of pipeline, the 3rd group of pipeline, the 4th group of pipeline, on first group of pipeline of described nitrogen standby system, be provided with in turn nitrogen reduction valve, nitrogen cylinder valve, high-pressure nitrogen bottle, described nitrogen reduction valve is connected by the driller's console of external hose and control system of ground preventer or the suction port of auxiliary console.
Particularly, on second group of pipeline of described nitrogen standby system, be provided with multiple second group of nitrogen cylinder valve, the multiple second group of high-pressure nitrogen bottle of the corresponding connection of described multiple second group of nitrogen cylinder valve; On described second group of pipeline, be provided with the 3rd group of pipeline.
Particularly, on the 3rd group of pipeline of described nitrogen standby system, be provided with in turn pressure gauge, second group of nitrogen bottle control main valve, described second group of nitrogen bottle control main valve connects inflated hose and inflatable tool, described inflated hose and inflatable tool connect control manifold, on described control manifold, be provided with Accumulator arrangements, the other end of described control manifold connects remote console; On described the 3rd group of pipeline, be provided with the 4th group of pipeline.
Particularly, on the 4th of described nitrogen standby system the group of pipeline, be provided with in turn separating valve, one-way valve, exhaust-control valve, plug; On described the 4th group of pipeline, be provided with high pressure hose, described high pressure hose is in the line segments between described one-way valve and described exhaust-control valve; Described high pressure hose connects the ball valve for subsequent use of control system of ground preventer, and described ball valve for subsequent use connects described remote console by described control manifold; Described plug connects externally connected exhaust pipe line.
Particularly, in the line segments between the 4th of described nitrogen standby system the group of pipeline described pressure gauge and described second group of nitrogen bottle control main valve on the 3rd group of pipeline of described nitrogen standby system.
Further, first of described nitrogen standby system group of pipeline refers to the pipeline between air outlet to the air outlet of described nitrogen reduction valve of described first group of high-pressure nitrogen bottle; Second group of pipeline of described nitrogen standby system refers to the pipeline between air outlet to the air outlet of second group of high-pressure nitrogen bottle of described end of second group of high-pressure nitrogen bottle of described head end; The 3rd group of pipeline of described nitrogen standby system refers to the extremely pipeline between described second group of nitrogen bottle control main valve of intermediate section from described second group of pipeline; The 4th group of pipeline of described nitrogen standby system refers to the extremely pipeline between described plug of intermediate section from described the 3rd group of pipeline.
The beneficial effect that the technological scheme that the embodiment of the present invention provides is brought is:
The embodiment of the present invention is by the emergent supporting facility nitrogen standby system of setting up, in the time that scene is in an emergency the rapid closing well of needs, the ball valve for subsequent use of the control manifold of the separating valve of nitrogen standby system and one-way valve and control system of ground preventer is connected, for the control manifold of control system of ground preventer provides emergent auxiliary energy, supply pressurized gas are as emergency power supply, control the switch of the blowout preventer set of well head and the throttle valve that surges, kill valve, with emergency cut-off wellhead blowout preventor; Can avoid in case of emergency because the Accumulator arrangements of control system of ground preventer or pump group can not provide the major accidents such as the blowout that power fluid causes for control manifold.
Brief description of the drawings
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the nitrogen standby system structural representation of the control system of ground preventer that provides of the embodiment of the present invention.
In figure, each symbol represents that implication is as follows:
First group of pipeline of 1-1, second group of pipeline of 1-2, the 3rd group of pipeline of 1-3, the 4th group of pipeline of 1-4;
2 nitrogen reduction valve, the air outlet of 2-1 nitrogen reduction valve;
3 first groups of nitrogen cylinder valves, second group of nitrogen cylinder valve of 3a;
4 first groups of high-pressure nitrogen bottles, the air outlet of first group of high-pressure nitrogen bottle of 4-1, second group of high-pressure nitrogen bottle of 4a, the air outlet 4a-1 of second group of high-pressure nitrogen bottle of head end, the air outlet 4a-2 of second group of high-pressure nitrogen bottle of end;
5 pressure gauges, 6 second groups of nitrogen bottle control main valves, 7 separating valves, 8 one-way valves, 9 exhaust-control valves, 10 plugs, 11 high pressure hoses, 12 external hoses;
13 Accumulator arrangements, 14 inflated hoses and inflatable tool, 15 driller's consoles or auxiliary console, 16 remote consoles, 17,17a control manifold, ball valve 18 for subsequent use;
In figure, the direction of arrow is airflow direction (be air-flow by suction port the direction to air outlet).
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Shown in Figure 1, the embodiment of the present invention provides a kind of nitrogen standby system of control system of ground preventer, for connecting with the ball valve for subsequent use of existing control system of ground preventer, for control system of ground preventer occurs providing emergent auxiliary energy while surprisingly causing liquid measure or underpressure not to provide power fluid for control manifold, supply out pressurized gas as emergency power supply by nitrogen standby system.Described nitrogen standby system at least comprises: the component such as associated pipe, nitrogen reduction valve 2, first group of nitrogen cylinder valve 3, second group of nitrogen cylinder valve 3a, first group of high-pressure nitrogen bottle 4, second group of high-pressure nitrogen bottle 4a, pressure gauge 5, second group of nitrogen bottle control main valve 6, separating valve 7, one-way valve 8, exhaust-control valve 9, plug 10, high pressure hose 11, external hose 12, and described component are outsourcing finished parts; Described associated pipe at least comprises first group of pipeline 1-1, second group of pipeline 1-2, the 3rd group of pipeline 1-3, the 4th group of pipeline 1-4 etc.; The prior art control system of ground preventer being simultaneously associated with the emergent supporting facility nitrogen standby system of the embodiment of the present invention at least comprises: the component such as Accumulator arrangements 13, inflated hose and inflatable tool 14, driller's console or auxiliary console 15, remote console 16, control manifold 17,17a, ball valve for subsequent use 18, the component of described prior art are as shown in double dot dash line in Fig. 1.
Particularly, as preferably, first group of pipeline 1-1 of described nitrogen standby system refers to the pipeline between the air outlet 2-1 to nitrogen reduction valve from the air outlet of first group of high-pressure nitrogen bottle 4-1; Described first group of pipeline 1-1 upper have nitrogen reduction valve 2, nitrogen cylinder valve 3, high-pressure nitrogen bottle 4 in sequential series, by switch nitrogen cylinder valve 3, can control the nitrogen output of high-pressure nitrogen bottle 4, the air outlet 2-1 of described nitrogen reduction valve is connected by external hose 12 and the driller's console of control system of ground preventer or the suction port of auxiliary console 15.
The working principle of described first group of pipeline 1-1 is: for driller's console or auxiliary console 15 provide the function of emergency power source of the gas; By nitrogen reduction valve 2, the high pressure nitrogen in high-pressure nitrogen bottle 4 is kept to the lower pressure needing, the air outlet 2-1 of described nitrogen reduction valve is connected through external hose 12 and driller's console or the gas of auxiliary console 15 or the suction port in electro-pneumatic remote control loop, in the time that the compressor bank of rig lost efficacy, can be gas or electro-pneumatic remote control loop provides remote operation required emergency pressure power gas source, and then makes driller's console or auxiliary console 15 close blowout preventer set.
Particularly, as preferably, second group of pipeline 1-2 of described nitrogen standby system refers to that air outlet 4a-1 from second group of high-pressure nitrogen bottle of head end is to the pipeline between the air outlet 4a-2 of second group of high-pressure nitrogen bottle of end; On described second group of pipeline 1-2, be parallel with multiple second group of nitrogen cylinder valve 3a, the multiple second group of high-pressure nitrogen bottle 4a of the corresponding series connection of described multiple second group of nitrogen cylinder valve 3a, by each second group of nitrogen cylinder valve 3a of switch, can control the nitrogen output of each corresponding second group of high-pressure nitrogen bottle 4a; On described second group of pipeline 1-2, be parallel with the 3rd group of pipeline 1-3.
The working principle of described second group of pipeline 1-2 is: can show the nitrogen pressure value of multiple second group of high-pressure nitrogen bottle 4a in second group of pipeline 1-2 by described pressure gauge 5, can control the nitrogen general output of multiple second group of high-pressure nitrogen bottle 4a by described second group of nitrogen bottle control main valve 6.
Particularly, as preferably, the 3rd group of pipeline 1-3 of described nitrogen standby system refers to the pipeline between intermediate section to the second group nitrogen bottle control main valve 6 of second group of pipeline 1-2; On described the 3rd group of pipeline 1-3, be provided with in turn pressure gauge 5, second group of nitrogen bottle control main valve 6, described second group of nitrogen bottle control main valve 6 connects inflated hose and the inflatable tool 14 of control system of ground preventer, described inflated hose and inflatable tool 14 connect the control manifold 17 of control system of ground preventer, on described control manifold 17, be in series with Accumulator arrangements 13, the other end of described control manifold 17 connects remote console 16; On described the 3rd group of pipeline 1-3, be parallel with the 4th group of pipeline 1-4.
The working principle of described the 3rd group of pipeline 1-3 is: for Accumulator arrangements 13 provides aerification function; By prior art inflated hose and inflatable tool 14, second group of nitrogen bottle control main valve of described nitrogen standby system 6 and the gas charging valve of the Accumulator arrangements 13 of existing control system of ground preventer are connected, can realize the Accumulator arrangements 13 on remote console 16 is inflated.
Particularly, as preferably, the 4th group of pipeline 1-4 of described nitrogen standby system refers to that intermediate section from the 3rd group of pipeline 1-3 is to the pipeline between plug 10; Described the 4th group of pipeline 1-4 is in the line segments between pressure gauge 5 and second group of nitrogen bottle control main valve 6; Described the 4th group of pipeline 1-4 upper have separating valve 7, one-way valve 8, exhaust-control valve 9, plug 10 in sequential series; On described the 4th group of pipeline 1-4, be parallel with high pressure hose 11, high pressure hose 11 is in the line segments between one-way valve 8 and exhaust-control valve 9; Described high pressure hose 11 connects the ball valve for subsequent use 18 of existing control system of ground preventer, and described ball valve 18 for subsequent use connects remote console 16 by existing control manifold 17a; Described plug 10 connects existing externally connected exhaust pipe line.
The working principle of described the 4th group of pipeline 1-4 is: one, for the control manifold 17a of control system of ground preventer provides emergency power; Separating valve 7, one-way valve 8, high pressure hose 11 by described nitrogen standby system connect with the ball valve for subsequent use 18 of control system of ground preventer, described ball valve for subsequent use 18 connects remote console 16 by control manifold 17a, can provide pressurized gas for the control manifold 17a of control system of ground preventer.
Two, can control the discharge of high pressure nitrogen; By exhaust-control valve 9, the 4th group of pipeline 1-4 of the control manifold 17a of control system of ground preventer and nitrogen standby system is connected, to prevent that high pressure nitrogen from uncontrolledly arranging liquid feeding tank, prevents that high pressure nitrogen from entering Accumulator arrangements 13 loops simultaneously; Can control toxic emission by slowly opening of exhaust-control valve 9, connect existing exhaust line by plug 10, opening can be by toxic emission after plug 10.
Three, in case of emergency close one and half envelope ram preventers, first close respectively the separating valve 7 of nitrogen standby system, exhaust-control valve 9, again the plug 10 of the 4th group of pipeline 1-4 of described nitrogen standby system is opened, open one by one each second group of nitrogen cylinder valve 3a, close Accumulator arrangements 13 separating valves of the remote console 16 of control system of ground preventer, each 3-position 4-way rotary valve handle is placed on to meta, open the bypass valve of control system of ground preventer, open again the ball valve 18 for high voltage standby between control manifold 17a and the nitrogen standby system of control system of ground preventer, separating valve 7, complete above emergency operation of closing half envelope ram preventer, can close half envelope ram preventer.
In sum, the major advantage of the embodiment of the present invention is, in the time that the Accumulator arrangements 13 of control system of ground preventer and/or pump-unit can not provide enough power fluid for control manifold 17, connect nitrogen standby system by the upper standby pressure source interface ball valve 18 for subsequent use arranging of control manifold 17a, for control manifold, 17a provides pressurized gas, to close preventer; Simultaneously nitrogen standby system also can be in case of emergency provides emergent source of the gas for driller's console or auxiliary console 15; Also can provide aerification function for Accumulator arrangements.Have simple in structurely, use function many, easy to operate, safe and reliable, be beneficial to the feature of environmental protection, be widely used in drilling well control system.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. the nitrogen standby system of a control system of ground preventer, this system provides pressurized gas as emergency power supply for control system of ground preventer, comprise high-pressure nitrogen bottle, valve, associated pipe, it is characterized in that, the associated pipe of described nitrogen standby system at least comprises first group of pipeline (1-1), second group of pipeline (1-2), the 3rd group of pipeline (1-3), the 4th group of pipeline (1-4), on first group of pipeline (1-1) of described nitrogen standby system, be provided with in turn nitrogen reduction valve (2), nitrogen cylinder valve (3), high-pressure nitrogen bottle (4), described nitrogen reduction valve (2) is connected by external hose (12) and the driller's console of control system of ground preventer or the suction port of auxiliary console (15).
2. the nitrogen standby system of control system of ground preventer according to claim 1, it is characterized in that, on second group of pipeline (1-2) of described nitrogen standby system, be provided with multiple second group of nitrogen cylinder valve (3a), the corresponding multiple second group of high-pressure nitrogen bottle (4a) that connect of described multiple second group of nitrogen cylinder valve (3a); On described second group of pipeline (1-2), be provided with the 3rd group of pipeline (1-3).
3. the nitrogen standby system of control system of ground preventer according to claim 2, it is characterized in that, on the 3rd group of pipeline (1-3) of described nitrogen standby system, be provided with in turn pressure gauge (5), second group of nitrogen bottle control main valve (6), described second group of nitrogen bottle control main valve (6) connects inflated hose and inflatable tool (14), described inflated hose and inflatable tool (14) connect control manifold (17), on described control manifold (17), be provided with Accumulator arrangements (13), the other end of described control manifold (17) connects remote console (16), on described the 3rd group of pipeline (1-3), be provided with the 4th group of pipeline (1-4).
4. the nitrogen standby system of control system of ground preventer according to claim 3, it is characterized in that, on the 4th group of pipeline (1-4) of described nitrogen standby system, be provided with in turn separating valve (7), one-way valve (8), exhaust-control valve (9), plug (10); On described the 4th group of pipeline (1-4), be provided with high pressure hose (11), described high pressure hose (11) is positioned in the line segments between described one-way valve (8) and described exhaust-control valve (9); Described high pressure hose (11) connects the ball valve for subsequent use (18) of control system of ground preventer, and described ball valve for subsequent use (18) connects described remote console (16) by described control manifold (17a); Described plug (10) connects externally connected exhaust pipe line.
5. the nitrogen standby system of control system of ground preventer according to claim 4, it is characterized in that, the 4th group of pipeline (1-4) of described nitrogen standby system is positioned in the described pressure gauge (5) on the 3rd group of pipeline (1-3) of described nitrogen standby system and the line segments between described second group of nitrogen bottle control main valve (6).
6. according to the nitrogen standby system of control system of ground preventer described in claim 1-5 any one, it is characterized in that, first group of pipeline (1-1) of described nitrogen standby system refers to the pipeline between the air outlet of described first group of high-pressure nitrogen bottle (4-1) to the air outlet (2-1) of described nitrogen reduction valve; Second group of pipeline (1-2) of described nitrogen standby system refers to the pipeline between air outlet (4a-1) to the air outlet (4a-2) of second group of high-pressure nitrogen bottle of described end of second group of high-pressure nitrogen bottle of described head end; The 3rd group of pipeline (1-3) of described nitrogen standby system refers to the extremely pipeline between described second group of nitrogen bottle control main valve (6) of intermediate section from described second group of pipeline (1-2); The 4th group of pipeline (1-4) of described nitrogen standby system refers to the extremely pipeline between described plug (10) of intermediate section from described the 3rd group of pipeline (1-3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310058732.1A CN104006293B (en) | 2013-02-25 | 2013-02-25 | The nitrogen back-up system of control system of ground preventer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310058732.1A CN104006293B (en) | 2013-02-25 | 2013-02-25 | The nitrogen back-up system of control system of ground preventer |
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| CN104006293A true CN104006293A (en) | 2014-08-27 |
| CN104006293B CN104006293B (en) | 2016-12-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973820A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of gas source feed system and method |
| CN112833057A (en) * | 2021-02-18 | 2021-05-25 | 河北新铁虎石油机械有限公司 | High-low pressure double-loop ground blowout preventer control device |
| CN113833434A (en) * | 2021-09-28 | 2021-12-24 | 四川省威沃敦化工有限公司 | Remote intelligent control device and method for gas production at wellhead |
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| CN112833057A (en) * | 2021-02-18 | 2021-05-25 | 河北新铁虎石油机械有限公司 | High-low pressure double-loop ground blowout preventer control device |
| CN113833434A (en) * | 2021-09-28 | 2021-12-24 | 四川省威沃敦化工有限公司 | Remote intelligent control device and method for gas production at wellhead |
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| CN104006293B (en) | 2016-12-28 |
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