CN106285607A - A kind of CO2pressure break is with remotely controlling high pressure unloading system and using method - Google Patents
A kind of CO2pressure break is with remotely controlling high pressure unloading system and using method Download PDFInfo
- Publication number
- CN106285607A CN106285607A CN201610965745.0A CN201610965745A CN106285607A CN 106285607 A CN106285607 A CN 106285607A CN 201610965745 A CN201610965745 A CN 201610965745A CN 106285607 A CN106285607 A CN 106285607A
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- pressure break
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- 238000000034 method Methods 0.000 title claims description 9
- 210000000664 rectum Anatomy 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 240000002853 Nelumbo nucifera Species 0.000 claims description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 2
- 235000013399 edible fruits Nutrition 0.000 abstract description 2
- 230000036541 health Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012369 In process control Methods 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/16—Control means therefor being outside the borehole
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention belongs to oilfield prospecting developing technical field, be specifically related to a kind of CO2Pressure break is with remotely controlling high pressure unloading system.It includes that a check valve, the outlet of described check valve connect a pressure break Trunk Line, and entrance connects and a plug valve；Described plug valve connects a port of a T-shaped right-angle tee, and two other port of described T-shaped right-angle tee connects one respectively and remotely controls high pressure unloading plug valve and CO2Pressure break pump truck；Described long-range control high pressure unloading plug valve connects a latus rectum and bleeds off pressure plug and a plug valve executor, and described plug valve executor connects fracturing unit truck storage battery and local instrument control box respectively by two cables.This system can make manifold of ground operator away from higher-pressure region, it is ensured that personnel health's safety, pressure break is greatly improved simultaneously and prepares to circulate cold pump efficiency fruit.
Description
Technical field
The invention belongs to oilfield prospecting developing technical field, be specifically related to a kind of CO2Pressure break remotely control high pressure unloads
G system and using method, it is adaptable to Oil/gas Well CO2Pressing crack construction operation.
Background technology
Along with CO2The development of fracturing technology, scope of construction item and the frequency the most progressively increase, and various risk factor are the most therewith
Increase.Wherein CO2The key link of pressing crack construction bleeds off pressure in manifold after circulating cold pump and pressure and is required for workmen and enters height
Pressure and high concentration CO2Carrying out pipe valve operation in environment, healthy and safe for workmen causes great hidden danger.
(3)CO2Remote controlled unloading system is by needing the plug valve of operation again to set during circulating cold pump
Meter, supporting corresponding tele-control system and special bleed off pressure device, effectively solve terrestrial operation in pressure break set-up procedure
Personnel enter high pressure and ultrahigh concentration CO2The safety wind that environment is faced when carrying out various high-voltage tube carcass switch and switch work
Danger, the work such as bleeds off pressure can also complete smoothly to circulate cold pump and pressure simultaneously after.
Summary of the invention
High pressure and high concentration CO is entered in order to solve workmen in prior art2Environment carries out pipe valve operation exist
Security hidden trouble, a wherein purpose of the present invention is to propose a kind of CO2Pressure break, with remotely controlling high pressure unloading system, makes
Manifold of ground operator are away from higher-pressure region, it is ensured that personnel health's safety, pressure break is greatly improved simultaneously and prepares to circulate cold pump efficiency fruit.
Another object of the present invention, provides a kind of CO2The pressure break using method remotely controlling high pressure unloading system.
For realizing above-mentioned technical purpose, the present invention adopts the following technical scheme that and is achieved.
A kind of CO2Pressure break is with remotely controlling high pressure unloading system, and including a check valve, the outlet of described check valve connects one
Pressure break Trunk Line, entrance connects and a plug valve；Described plug valve connects a port of a T-shaped right-angle tee, described T-shaped directly
Two other port of angle threeway connects one respectively and remotely controls high pressure unloading plug valve and CO2Pressure break pump truck；Described long-range control
High pressure unloading plug valve processed connects a latus rectum and bleeds off pressure plug and a plug valve executor, and described plug valve executor passes through two cables
Connect fracturing unit truck storage battery and local instrument control box respectively.
Preferably, described long-range control high pressure unloading plug valve includes interface on, a lower interface and one side spool
Rotating part；Described upper port connects described latus rectum and bleeds off pressure plug, described lower interface connecting T-shaped right-angle tee, described side spool
Rotating part connects described plug valve executor.
Preferably, described plug valve executor is provided with power supply and controls interface with signal, and described power supply controls interface with signal
Being electrically connected with power supply electricity and a signal control line cable, described feed cable is connected to a fracturing unit truck storage battery, and described signal controls
Cable is connected to a local instrument control box, and described local instrument control box is arranged on measuring truck.
Preferably, the feed cable of described plug valve executor and signal control cable is shielded multiconductor cable.
Preferably, described local instrument control box is simultaneously connected with multiple plug valve executor, can unload remotely controlling high pressure
The switch of lotus plug valve is controlled and indicates the current switch states of plug valve executor.
Preferably, the running voltage of described plug valve executor is 24V direct current, power of motor 70W, rated current 7.8A.
Preferably, described long-range control high pressure unloading plug valve and the T-shaped threeway in right angle, latus rectum bleed off pressure plug and all pass through union
Connect.
Preferably, between described pressure break Trunk Line and described check valve, the most logical between described check valve and described plug valve
Cross union to connect.
Another object of the present invention, it is provided that a kind of CO2The pressure break using method of remotely control high pressure unloading system, including
Following steps,
Circulate cold pump operated step, by CO2The gas phase of tank car passes through CO2Booster pump is prized to the high-low pressure pipeline of all connections
And the standby pressure of upper tank of fracturing unit truck, after completing standby pressure, remotely control with the local instrument control box being placed on measuring truck to beat
Open CO2That installs after pressure break pump truck remotely controls high pressure unloading plug valve, until this remotely controls going out of high pressure unloading plug valve
Mouth is liquid CO2And discharge capacity is stable, progressively give CO2Pressure break pump truck is put into gear, and within control system pressure 10MPa, observes all CO2
The whole frosting of fracturing unit truck fluid end, upper tank, high pressure line, CO2Pressure break pump truck termination of pumping, uses local instrument control box the most remote
CO is closed in process control2That installs after pressure break pump truck remotely controls high pressure unloading plug valve, so far, circulates cold pump work and terminates；
Bleed off pressure operating procedure after pressure, use local instrument control box the most remotely to control to open CO2Install after pressure break pump truck
Remotely control high pressure unloading plug valve, progressively release liquid CO2, during bleeding off pressure, it is ensured that pressure is more than 1.0Mpa, waits own
The outlet that bleeds off pressure there is no liquid CO2After, close make and break CO2The gas phase valve of tank car, opens all No. 2 plug valves and bleeds off pressure to zero.
Beneficial effects of the present invention: tele-control system of the present invention is by manually-operated to needing during circulating cold pump
Plug valve redesigns, and is equipped with plug valve executor, local instrument control box for plug valve, builds tele-control system and be able to far
Cheng Jinhang operates, and workmen is without entering high pressure and high concentration CO2Environment carries out various high-voltage tube carcass switch and switches work
Make, it is to avoid workmen enters the situation of danger construction area and occurs, meanwhile, because system response is sensitive reliably, it is ensured that early stage
The effect prepared, improves construction quality.
Accompanying drawing explanation
Fig. 1 is CO in a present invention wherein embodiment2Pressure break is with remotely controlling high pressure unloading system structure schematic diagram；
Fig. 2 is the remotely control high pressure unloading stopcock structure schematic diagram of the present invention；
Fig. 3 is the CO of the present invention2Pressure break is with remotely controlling high pressure unloading system electrical equipment connection block diagram；
In figure: 1-remotely controls high pressure unloading plug valve；2-latus rectum bleeds off pressure plug；3-T type right-angle tee；4-plug valve；
5-ball-and-seat；6-CO2 pressure break pump truck；7-this locality instrument control box；8-measuring truck；9-feed cable；10-signal controls cable；
11-pressure break Trunk Line；201-plug valve executor；The upper interface of 202-；203-lower interface；204-power supply controls interface with signal；
205-fracturing unit truck storage battery；206-side spool rotating part.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Embodiment 1
As shown in Figure 1 to Figure 3, a kind of CO that the embodiment of the present invention provides2Pressure break is with remotely controlling high pressure unloading system, bag
Including a check valve 5, the outlet of described check valve 5 connects a pressure break Trunk Line 11, and entrance connects and a plug valve 4；Described cock
Valve 4 connects a port of a T-shaped right-angle tee 3, and it is long-range that two other port of described T-shaped right-angle tee 3 connects one respectively
Control high pressure unloading plug valve 1 and CO2Pressure break pump truck 6；Described long-range control high pressure unloading plug valve 1 connects a latus rectum and bleeds off pressure stifled
2 and a plug valve executor 201, described plug valve executor 201 by two cables connect respectively fracturing unit truck storage battery 205 and this
Ground instrument control box 7.
The operation principle of the present invention is: owing to the plug valve 4 of the present invention is connected to fracturing unit truck by plug valve executor 201
Storage battery 205 and local instrument control box 7, when needs operation switchs each high pressure valve member, workmen only need to be in local instrument
Operate on control chamber 7, it is not necessary to be exposed to high pressure and ultrahigh concentration CO2In the middle of environment, stop personnel and entered hazardous environment
Risk.
Embodiment 2
On the basis of embodiment 1, as in figure 2 it is shown, described long-range control high pressure unloading plug valve 1 includes interface on
202, a lower interface 203 and one side Spool rotating portion 206；Described upper port 202 connects described latus rectum and bleeds off pressure plug 2, institute
Stating lower interface 203 connecting T-shaped right-angle tee 3, described side spool rotating part 206 connects described plug valve executor 201.This is remote
Process control high pressure unloading plug valve 1 be a kind of make the passway on valve plug identical with the passway on valve body by 90-degree rotation or
Separately, it is achieved a kind of valve being turned on and off, in order to provide overvoltage protection easy, reliable, and external setting-up pressure is adjusted
Whole simplicity.
Embodiment 3
On the basis of embodiment 1, as in figure 2 it is shown, described plug valve executor 201 is provided with power supply controls interface with signal
204, described power supply and signal control interface 204 and are electrically connected with feed cable 9 and a signal control line cable 10, described power supply electricity
Cable 9 is connected on a fracturing unit truck storage battery 205, and described signal control line cable 10 is connected to a local instrument control box 7, described this locality
Instrument control box 7 is arranged on measuring truck 8.
Described local instrument control box 7 is simultaneously connected with multiple plug valve executor 201, can be to remotely controlling high pressure unloading rotation
The switch of plug valve 1 is controlled and indicates the current switch states of plug valve executor 201.
This plug valve executor 201 can be selected for the YE that model is DCL-EX40 that Yangzhou Kai Desi produces, should
YE by with described long-range control high pressure unloading plug valve 1 with the use of, constitute automation control system.
It is shielded multiconductor cable that the feed cable 9 of described plug valve executor 201 and signal control cable 10, a length of 50
Rice.Multicore shielding cable current-carrying capacity is big, increases rated current, and pliability is good, contributes to stablizing of remote control signal.
The running voltage of described plug valve executor 201 is 24V direct current, power of motor 70W, rated current 7.8A, convenient
With existing device matching.Standard time/the moment of described plug valve executor 201 is 15S/200Nm, the optional standard time/
Moment is 60S/400Nm.
Embodiment 4
On the basis of embodiment 1, between described pressure break Trunk Line 11 and described check valve 5, described check valve 5 is with described
All being connected by union between plug valve 4, union button-type is FIG1502, F*M, pressure-bearing 15000Psi.Use union connection disassembling
Convenient, it is simple to maintenance.
Described long-range control high pressure unloading plug valve 1 and the T-shaped threeway in right angle 3, latus rectum bleed off pressure plug 2 all by union even
Connecing, union button-type is FIG1502, F*M, pressure-bearing 15000Psi, uses union connection disassembling convenient, it is simple to maintenance.
Embodiment 5
Solve workmen in prior art to enter high pressure and high concentration CO 2 environment carry out what pipe valve operation existed
Security hidden trouble, it is an object of the invention to propose a kind of CO2 pressure break using method remotely controlling high pressure unloading system.
Wherein, first pass through during preparation of construction by the feed cable 9 of plug valve executor 201 with control cable 10 from
Interface power and signal control interface 204 and draw, and feed cable 9 is connected to fracturing unit truck storage battery 205, and signal controls cable 10 and connects
Local instrument control box 7, local instrument control box 7 is placed on measuring truck 8.
This using method specifically includes following steps:
Circulate cold pump operated step, by CO2The gas phase of tank car passes through CO2Booster pump is prized to the high-low pressure pipeline of all connections
And the standby pressure of upper tank of fracturing unit truck, after completing standby pressure, remotely control with the local instrument control box 7 being placed on measuring truck 8
Open CO2That installs after pressure break pump truck 6 remotely controls high pressure unloading plug valve 1, until this remotely controls high pressure unloading plug valve 1
Outlet be liquid CO2And discharge capacity is stable, progressively give CO2Pressure break pump truck 6 is put into gear, and within control system pressure 10MPa, observes institute
There is CO2The whole frosting of fracturing unit truck fluid end, upper tank, high pressure line, CO2Pressure break pump truck 6 termination of pumping, uses local instrument control box 7
Rapid remote controls to close CO2That installs after pressure break pump truck 6 remotely controls high pressure unloading plug valve 1, so far, circulates cold pump work
Terminate；
Bleed off pressure operating procedure after pressure, use local instrument control box 7 remotely to control one by one to open CO2Pacify after pressure break pump truck 6
The remotely control high pressure unloading plug valve 1 of dress, progressively releases liquid CO2, during bleeding off pressure, it is ensured that pressure is more than 1.0Mpa, treats
All of bleed off pressure outlet and there is no liquid CO2After, close make and break CO2The gas phase valve of tank car, opens all No. 2 (i.e. 2# in Fig. 3) rotation
Plug valve bleeds off pressure to zero.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a CO2Pressure break is with remotely controlling high pressure unloading system, it is characterised in that: include a check valve (5), described check valve
(5) outlet connects a pressure break Trunk Line (11), and entrance connects and a plug valve (4)；Described plug valve (4) connection one is T-shaped directly
One port of angle threeway (3), two other port of described T-shaped right-angle tee (3) connects a long-range high pressure that controls respectively and unloads
Lotus plug valve (1) and CO2Pressure break pump truck (6)；Described long-range control high pressure unloading plug valve (1) connects a latus rectum and bleeds off pressure plug
(2) and one plug valve executor (201), described plug valve executor (201) connects fracturing unit truck storage battery respectively by two cables
And local instrument control box (7) (205).
CO the most according to claim 12Pressure break is with remotely controlling high pressure unloading system, it is characterised in that: described long-range control
High pressure unloading plug valve (1) includes interface on (202), a lower interface (203) and one side Spool rotating portion (206)；Institute
State upper port (202) to connect described latus rectum and bleed off pressure plug (2), described lower interface (203) connecting T-shaped right-angle tee (3), described side
Spool rotating portion, face (206) connects described plug valve executor (201).
CO the most according to claim 22Pressure break is with remotely controlling high pressure unloading system, it is characterised in that: described plug valve is held
Row device (201) is provided with power supply and controls interface (204) with signal, and described power supply and signal control interface (204) and be electrically connected with an electricity
Source power cable (9) and a signal control line cable (10), described feed cable (9) is connected to a fracturing unit truck storage battery (205), described signal
Controlling cable (10) and be connected to a local instrument control box (7), described local instrument control box (7) is arranged on measuring truck (8).
CO the most according to claim 32Pressure break is with remotely controlling high pressure unloading system, it is characterised in that: described plug valve is held
It is shielded multiconductor cable that the feed cable (9) of row device (201) and signal control cable (10).
CO the most according to claim 12Pressure break is with remotely controlling high pressure unloading system, it is characterised in that: described local instrument
Control chamber (7) is simultaneously connected with multiple plug valve executor (201), can enter the switch remotely controlling high pressure unloading plug valve (1)
Row controls and indicates the current switch states of plug valve executor (201).
CO the most according to claim 52Pressure break is with remotely controlling high pressure unloading system, it is characterised in that: described plug valve is held
The running voltage of row device (201) is 24V direct current, power of motor 70W, rated current 7.8A.
CO the most according to claim 12Pressure break is with remotely controlling high pressure unloading system, it is characterised in that: described pressure break is responsible for
Between line and described check valve (5), all it is connected by union between described check valve (5) with described plug valve (4).
CO the most according to claim 12Pressure break is with remotely controlling high pressure unloading system, it is characterised in that: described long-range control
High pressure unloading plug valve (1) threeway T-shaped with right angle (3), latus rectum are bled off pressure plug (2) and are all connected by union.
9. a described CO based on claim 12The pressure break using method of remotely control high pressure unloading system, its feature exists
In: comprise the following steps,
Circulate cold pump operated step, by CO2The gas phase of tank car passes through CO2Booster pump prize the high-low pressure pipeline to all connections and
The standby pressure of the upper tank of fracturing unit truck, after completing standby pressure, remotely controls with the local instrument control box (7) being placed on measuring truck (8)
Open CO2What pressure break pump truck (6) was installed afterwards remotely controls high pressure unloading plug valve (1), until this remotely controls high pressure unloading rotation
The outlet of plug valve (1) is liquid CO2And discharge capacity is stable, progressively give CO2Pressure break pump truck (6) is put into gear, control system pressure 10MPa with
In, observe all CO2The whole frosting of fracturing unit truck fluid end, upper tank, high pressure line, CO2Pressure break pump truck (6) termination of pumping, uses this locality
Instrument control box (7) rapid remote controls to close CO2What pressure break pump truck (6) was installed afterwards remotely controls high pressure unloading plug valve (1),
So far, circulate cold pump work to terminate；
Bleed off pressure operating procedure after pressure, use local instrument control box (7) remotely to control one by one to open CO2Pressure break pump truck (6) is installed afterwards
Remotely control high pressure unloading plug valve (1), progressively release liquid CO2, during bleeding off pressure, it is ensured that pressure is more than 1.0Mpa, treats
All of bleed off pressure outlet and there is no liquid CO2After, close make and break CO2The gas phase valve of tank car, opens all No. 2 plug valves and bleeds off pressure to zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610965745.0A CN106285607A (en) | 2016-10-28 | 2016-10-28 | A kind of CO2pressure break is with remotely controlling high pressure unloading system and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610965745.0A CN106285607A (en) | 2016-10-28 | 2016-10-28 | A kind of CO2pressure break is with remotely controlling high pressure unloading system and using method |
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| CN106285607A true CN106285607A (en) | 2017-01-04 |
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| CN201610965745.0A Pending CN106285607A (en) | 2016-10-28 | 2016-10-28 | A kind of CO2pressure break is with remotely controlling high pressure unloading system and using method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374655A (en) * | 2018-04-02 | 2018-08-07 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Liquid carbon dioxide dry method sand fracturing system and technological process |
| CN109403941A (en) * | 2018-12-20 | 2019-03-01 | 新疆美瑞科石油装备有限公司 | A kind of pressure break high pressure pipe joint, which remotely surges, bleeds off pressure device and method |
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| CN105863597A (en) * | 2016-05-27 | 2016-08-17 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | High pressure manifold device for carbon dioxide dry fracturing |
| CN206429232U (en) * | 2016-10-28 | 2017-08-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of CO2 pressure breaks remote control high pressure unloading system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374655A (en) * | 2018-04-02 | 2018-08-07 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Liquid carbon dioxide dry method sand fracturing system and technological process |
| CN108374655B (en) * | 2018-04-02 | 2023-11-17 | 中国石油天然气集团有限公司 | Liquid carbon dioxide dry sand fracturing system and technological process |
| CN109403941A (en) * | 2018-12-20 | 2019-03-01 | 新疆美瑞科石油装备有限公司 | A kind of pressure break high pressure pipe joint, which remotely surges, bleeds off pressure device and method |
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