CN203176725U - Nitrogen standby system of ground blowout preventer control device - Google Patents
Nitrogen standby system of ground blowout preventer control device Download PDFInfo
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- CN203176725U CN203176725U CN 201320085460 CN201320085460U CN203176725U CN 203176725 U CN203176725 U CN 203176725U CN 201320085460 CN201320085460 CN 201320085460 CN 201320085460 U CN201320085460 U CN 201320085460U CN 203176725 U CN203176725 U CN 203176725U
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Abstract
The utility model discloses a nitrogen standby system of a ground blowout preventer control device, and belongs to the technical field of oil drilling well control. The system provides high-pressure gas for the ground blowout preventer control device to serve as an emergency power source, and comprises a high-pressure nitrogen bottle, a valve and related pipelines. The related pipelines of the nitrogen standby system at least comprise a first group pipeline, a second group pipeline, a third group pipeline and a fourth group pipeline. The first group pipeline of the nitrogen standby system is sequentially provided with a nitrogen pressure reducing valve, a nitrogen bottle valve and the high-pressure nitrogen bottle. The nitrogen pressure reducing valve is connected with a driller console of the ground blowout preventer control device or a gas inlet of an auxiliary console through an external soft pipe. When a well needs to be shut down during emergencies on site, the nitrogen standby system provides auxiliary emergency energy for a control manifold of the ground blowout preventer control device, and prevents grave accidents such as blowout caused by the fact that an energy accumulator or a pump set of the ground blowout preventer control device can not provide power liquid for the control manifold.
Description
Technical field
The utility model 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 control well head blowout preventer set and the throttle valve that surges, kill valve in the oil and gas well drilling, is the safety equipment that prevents the blowout indispensability in the drillng operation.
The prior art control system of ground preventer mainly is made up of remote console, hydraulic line, driller's console or auxiliary console, air duct cable; Described driller's console or auxiliary console are installed on the control system of ground preventer rig floor usually, make the driller realize remote control to remote console easily.Described remote console is made up of base, fuel tank, pump group, accumulator group, control manifold, various valve member, instrument and electric control box etc.; The major function that has the remote console of manual pressure regulating valve is: produced high voltage control liquid and be stored in the accumulator group by the pump group, when needs open and close preventer, be assigned to each control object from the high voltage control liquid of the accumulator group 3-position 4-way rotary valve by control manifold, namely in the preventer; Described remote console has long-range pneumatic voltage regulation function, and when the source of the gas catastrophic failure, operation control is closed, and pilot pressure can revert to initial set value automatically.
In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art:
But, blowout need be shunt in a well in emergency circumstances if happen suddenly at the scene, and the accumulator group of control system of ground preventer or pump group occur that accident causes liquid measure or underpressure and can not provide power fluid for control manifold the time, to cause in time to shunt in a well and blowout will take place, and can lead to serious accident.For this reason, necessary in the emergent supporting facility of control system of ground preventer increase.
Summary of the invention
In order to solve prior art problems, the utility model embodiment provides a kind of nitrogen standby system of control system of ground preventer.When the scene is in an emergency the rapid closing well of needs, the standby ball valve of the control manifold of this emergent supporting facility nitrogen standby system and control system of ground preventer is linked, can be the manifold supply pressurized gas of control system of ground preventer with the emergency cut-off wellhead blowout preventor, avoid taking place 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 comprises first group of pipeline at least, second group of pipeline, the 3rd group of pipeline, the 4th group of pipeline, be provided with the nitrogen reduction valve in turn on first group of pipeline of described nitrogen standby system, the nitrogen cylinder valve, high-pressure nitrogen bottle, described nitrogen reduction valve links by the driller's console of external hose and control system of ground preventer or the suction port of auxiliary console.
Particularly, second group of pipeline of described nitrogen standby system is provided with a plurality of second group of nitrogen cylinder valve, a plurality of second group of high-pressure nitrogen bottle of the corresponding connection of described a plurality of second group of nitrogen cylinder valve; Described second group of pipeline is provided with the 3rd group of pipeline.
Particularly, be provided with pressure gauge, second group of nitrogen bottle control main valve on the 3rd group of pipeline of described nitrogen standby system in turn, described second group of nitrogen bottle control main valve connects inflated hose and inflatable tool, described inflated hose and inflatable tool connect control manifold, described control manifold is provided with the accumulator group, and the other end of described control manifold connects remote console; Described the 3rd group of pipeline is provided with the 4th group of pipeline.
Particularly, be provided with separating valve, one-way valve, exhaust-control valve, plug in turn on the 4th of described nitrogen standby system the group of pipeline; Described the 4th group of pipeline is provided with high pressure hose, and described high pressure hose is on the line segments between described one-way valve and the described exhaust-control valve; Described high pressure hose connects the standby ball valve of control system of ground preventer, and described standby ball valve connects described remote console by described control manifold; Described plug connects the externally connected exhaust pipe line.
Particularly, the 4th of described nitrogen standby system the group of pipeline is on the line segments between the described pressure gauge on the 3rd group of pipeline of described nitrogen standby system and the described second group of nitrogen bottle control main valve.
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 described terminal second group of high-pressure nitrogen bottle 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 pipeline between the extremely described second group of nitrogen bottle control of the intermediate section of described second group of pipeline main valve; The 4th group of pipeline of described nitrogen standby system refers to from the intermediate section of described the 3rd group of pipeline to the pipeline between the described plug.
The beneficial effect that the technological scheme that the utility model embodiment provides is brought is:
The emergent supporting facility nitrogen standby system of the utility model embodiment by setting up, when the scene is in an emergency the rapid closing well of needs, the standby ball valve of the control manifold of the separating valve of nitrogen standby system and one-way valve and control system of ground preventer is linked, for the control manifold of control system of ground preventer provides emergent auxiliary energy, the supply pressurized gas are as emergency power supply, the switch of the blowout preventer set of control well head and the throttle valve that surges, kill valve is with the emergency cut-off wellhead blowout preventor; The major accidents such as blowout that can not provide power fluid to cause for control manifold owing to the accumulator group of control system of ground preventer or pump group can be provided in case of emergency.
Description of drawings
In order to be illustrated more clearly in the technological scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the nitrogen standby system structural representation of the control system of ground preventer that provides of the utility model embodiment.
Each symbolic representation implication is as follows among the figure:
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 terminal second group of high-pressure nitrogen bottle;
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 groups, 14 inflated hoses and inflatable tool, 15 driller's consoles or auxiliary console, 16 remote consoles, 17, the 17a control manifold, standby ball valve 18;
The direction of arrow is airflow direction (being that air-flow is by the direction of suction port to the air outlet) among the figure.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing the utility model mode of execution is described in further detail.
Referring to shown in Figure 1, the utility model embodiment provides a kind of nitrogen standby system of control system of ground preventer, be used for connecting with the standby ball valve of existing control system of ground preventer, for control system of ground preventer occurs providing emergent auxiliary energy when accident causes liquid measure or underpressure not to provide power fluid for control manifold, supply out pressurized gas as emergency power supply by the nitrogen standby system.Described nitrogen standby system comprises at least: 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 are controlled component such as 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 the outsourcing finished parts; Described associated pipe 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. at least; The prior art control system of ground preventer that is associated with the emergent supporting facility nitrogen standby system of the utility model embodiment comprises at least simultaneously: component such as accumulator group 13, inflated hose and inflatable tool 14, driller's console or auxiliary console 15, remote console 16, control manifold 17,17a, standby ball valve 18, the component of described prior art are shown in double dot dash line among 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 the nitrogen reduction valve from the air outlet of first group of high-pressure nitrogen bottle 4-1; Described first group of pipeline 1-1 goes up 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 links 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: the function that the emergency power source of the gas is provided for driller's console or auxiliary console 15; High pressure nitrogen in the high-pressure nitrogen bottle 4 is kept to the lower pressure that needs by nitrogen reduction valve 2, the air outlet 2-1 of described nitrogen reduction valve links 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, when 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 terminal second group of high-pressure nitrogen bottle; Be parallel with a plurality of second group of nitrogen cylinder valve 3a on described second group of pipeline 1-2, the a plurality of second group of high-pressure nitrogen bottle 4a of the corresponding series connection of described a plurality of 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; Be parallel with the 3rd group of pipeline 1-3 on described second group of pipeline 1-2.
The working principle of described second group of pipeline 1-2 is: can show the nitrogen pressure value of a plurality of second group of high-pressure nitrogen bottle 4a among second group of pipeline 1-2 by described pressure gauge 5, can control the nitrogen general output of a plurality of 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; Be provided with pressure gauge 5, second group of nitrogen bottle control main valve 6 on described the 3rd group of pipeline 1-3 in turn, 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, be in series with accumulator group 13 on the described control manifold 17, the other end of described control manifold 17 connects remote console 16; Be parallel with the 4th group of pipeline 1-4 on described the 3rd group of pipeline 1-3.
The working principle of described the 3rd group of pipeline 1-3 is: for accumulator group 13 provides aerification function; The gas charging valve of second group of nitrogen bottle of described nitrogen standby system being controlled the accumulator group 13 of main valve 6 and existing control system of ground preventer by prior art inflated hose and inflatable tool 14 links, and can realize the accumulator group 13 on the 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 the plug 10; Described the 4th group of pipeline 1-4 is on the line segments between pressure gauge 5 and the second group of nitrogen bottle control main valve 6; Described the 4th group of pipeline 1-4 goes up have separating valve 7, one-way valve 8, exhaust-control valve 9, plug 10 in sequential series; Be parallel with high pressure hose 11 on described the 4th group of pipeline 1-4, high pressure hose 11 is on the line segments between one-way valve 8 and the exhaust-control valve 9; Described high pressure hose 11 connects the standby ball valve 18 of existing control system of ground preventer, and described standby ball valve 18 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, the control manifold 17a for 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 standby ball valve 18 of control system of ground preventer, described standby ball valve 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 control manifold 17a of control system of ground preventer and the 4th group of pipeline 1-4 of nitrogen standby system are linked, uncontrolledly arrange liquid feeding tank to prevent high pressure nitrogen, prevent that simultaneously high pressure nitrogen from entering accumulator group 13 loops; Can control toxic emission by slowly opening of exhaust-control valve 9, connect existing exhaust line by plug 10, opening can be with toxic emission behind the plug 10.
Three, in case of emergency close one and half envelope ram preventers; Close the separating valve 7 of nitrogen standby system at first respectively, exhaust-control valve 9, again the plug 10 of the 4th group of pipeline 1-4 of described nitrogen standby system is opened, open each second group of nitrogen cylinder valve 3a one by one, close accumulator group 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 meta, open the bypass valve of control system of ground preventer, open control manifold 17a and the standby ball valve 18 of the high pressure between the nitrogen standby system of control system of ground preventer again, separating valve 7, finish above emergency operation of closing half envelope ram preventer, can close half envelope ram preventer.
In sum, the utility model embodiment's major advantage is, when the accumulator group 13 of ground blowout preventing control apparatus and/or pump-unit can not provide enough power fluid for control manifold 17, go up the standby ball valve 18 of the standby pressure source interface that arranges by control manifold 17a and connect the nitrogen standby system, 17a provides pressurized gas for control manifold, in order to close preventer; Simultaneously the 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 the accumulator group.Have simple in structurely, function of use is many, and is easy to operate, safe and reliable, is beneficial to the characteristics of environmental protection, is widely used in the drilling well control system.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
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 comprises first group of pipeline (1-1) at least, second group of pipeline (1-2), the 3rd group of pipeline (1-3), the 4th group of pipeline (1-4), be provided with nitrogen reduction valve (2) in turn on first group of pipeline (1-1) of described nitrogen standby system, nitrogen cylinder valve (3), high-pressure nitrogen bottle (4), described nitrogen reduction valve (2) links 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, second group of pipeline (1-2) of described nitrogen standby system is provided with a plurality of second group of nitrogen cylinder valve (3a), the corresponding a plurality of second group of high-pressure nitrogen bottle (4a) that connect of described a plurality of second group of nitrogen cylinder valve (3a); Described second group of pipeline (1-2) is 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, be provided with pressure gauge (5), second group of nitrogen bottle control main valve (6) on the 3rd group of pipeline (1-3) of described nitrogen standby system in turn, 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), described control manifold (17) is provided with accumulator group (13), and the other end of described control manifold (17) connects remote console (16); Described the 3rd group of pipeline (1-3) is 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, be provided with separating valve (7), one-way valve (8), exhaust-control valve (9), plug (10) on the 4th group of pipeline (1-4) of described nitrogen standby system in turn; Described the 4th group of pipeline (1-4) is provided with high pressure hose (11), and described high pressure hose (11) is positioned on the line segments between described one-way valve (8) and the described exhaust-control valve (9); Described high pressure hose (11) connects the standby ball valve (18) of control system of ground preventer, and described standby ball valve (18) connects described remote console (16) by described control manifold (17a); Described plug (10) connects the 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 on the described pressure gauge (5) and the line segments between described second group of nitrogen bottle control main valve (6) on the 3rd group of pipeline (1-3) of described nitrogen standby system.
6. according to the nitrogen standby system of each described control system of ground preventer of claim 1-5, 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 described terminal second group of high-pressure nitrogen bottle 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 pipeline between the extremely described second group of nitrogen bottle control main valve of intermediate section (6) of described second group of pipeline (1-2); The 4th group of pipeline (1-4) of described nitrogen standby system refers to from the intermediate section of described the 3rd group of pipeline (1-3) to the pipeline between the described plug (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320085460 CN203176725U (en) | 2013-02-25 | 2013-02-25 | Nitrogen standby system of ground blowout preventer control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320085460 CN203176725U (en) | 2013-02-25 | 2013-02-25 | Nitrogen standby system of ground blowout preventer control device |
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| Publication Number | Publication Date |
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| CN203176725U true CN203176725U (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320085460 Expired - Lifetime CN203176725U (en) | 2013-02-25 | 2013-02-25 | Nitrogen standby system of ground blowout preventer control device |
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| CN (1) | CN203176725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006293A (en) * | 2013-02-25 | 2014-08-27 | 中国石油天然气集团公司 | Nitrogen stand-by system of ground blowout preventer control device |
-
2013
- 2013-02-25 CN CN 201320085460 patent/CN203176725U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006293A (en) * | 2013-02-25 | 2014-08-27 | 中国石油天然气集团公司 | Nitrogen stand-by system of ground blowout preventer control device |
| CN104006293B (en) * | 2013-02-25 | 2016-12-28 | 中国石油天然气集团公司 | The nitrogen back-up system of control system of ground preventer |
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