CN107254894A - A kind of pumping method and pumping system - Google Patents
A kind of pumping method and pumping system Download PDFInfo
- Publication number
- CN107254894A CN107254894A CN201710668668.7A CN201710668668A CN107254894A CN 107254894 A CN107254894 A CN 107254894A CN 201710668668 A CN201710668668 A CN 201710668668A CN 107254894 A CN107254894 A CN 107254894A
- Authority
- CN
- China
- Prior art keywords
- water
- storage facilities
- storage
- point
- pipeline section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
Abstract
The invention provides a kind of pumping method and pumping system, belong to shale gas pressure break hydrotechny.Pumping method comprises the following steps.Different height and positions sets multistage storage facilities between water supply point and water storage point.It is primary storage facilities close to the storage facilities of water supply point, is final stage storage facilities close to the storage facilities of water storage point.Water plug is respectively provided between primary storage facilities and water supply point, between two adjacent storage facilities, between final stage storage facilities and water storage point, passes through each water plug being drawn into the water of water supply point at water storage point step by step.Cause that the pressure that draws water of each water plug is relatively low using the pumping method of classification, can will effectively draw water Stress control in below 1.6Mpa, will not occur pipeline accident.
Description
Technical field
The present invention relates to shale gas pressure break hydrotechny field, in particular to a kind of pumping method and pumping system.
Background technology
In oil-gas field development field, to low permeability oil and gas field, the oil-gas mining of shale gas is typically changed by pressure break when special
Means are made to realize that the economical and effective of low permeability reservoir is developed.Shale device air pressure, which splits, utilizes ground high pressure pump group infusion into well
Fracturing fluid makes reservoir fracture, continues through well infusion fracturing fluid and make it that crack is formed in reservoir continues to extend, while will take
Fracturing fluid with proppant squeezes into reservoir and supports formed crack, and the flow channel of high flow conductivity is provided for oil gas, and then
Improve oil and gas production.
Well site that oil gas is taken is general in mountain region, used in fracturing process to water then need it is relatively low from physical features
Water supply point is drawn into the water storage point in the higher well site of physical features, and water supply point is generally more than 3 kilometers to water storage point.At present, pressure break institute
The water needed is typically supplied water using one-stop, i.e., a long water supply line is laid between water supply point and water storage point, and pass through
The water of water supply point is pumped to water storage point by one water plug.In this water extraction way, the water plug pressure that draws water is larger, typically
In more than 1.6Mpa, greatly injury and irremediable loss are caused to staff, building when there is pipeline accident.
The content of the invention
It is an object of the invention to provide a kind of pumping method, to improve the pressure of drawing water of water plug in existing water extraction way
The problem of power is larger.
It is an object of the invention to provide a kind of pumping system, the pressure that draws water of water plug is larger in existing water extraction way
The problem of.
What the present invention was realized in：
Based on above-mentioned first purpose, the present invention provides a kind of pumping method, comprised the following steps：
Different height and positions sets multistage storage facilities between water supply point and water storage point；
It is primary storage facilities close to the storage facilities of water supply point, the storage facilities close to water storage point sets for final stage storage
It is standby；
Between primary storage facilities and water supply point, between two adjacent storage facilities, final stage storage facilities with
Water plug is respectively provided between water storage point, passes through each water plug being drawn into the water of water supply point at water storage point step by step.
Further, from water supply point to water storage, the position of storage facilities at different levels is raised step by step on the direction of point.
Further, the difference in height between adjacent two-stage storage facilities is not more than 150 meters.
Further, the water plug between two adjacent storage facilities is the first water plug, adjacent two
Individual storage facilities is respectively the first storage facilities and the second storage facilities, and the first storage facilities position is set less than the second storage
Standby position；
First water plug includes pipeline and pumping installations, and pipeline includes the first pipeline section and the second pipeline section, pumping installations tool
There are inlet and liquid outlet, one end of the first pipeline section is connected with inlet, the other end of the first pipeline section and the first storage facilities connect
Logical, one end of the second pipeline section is connected with liquid outlet, and the other end of the second pipeline section is connected with the second storage facilities.
Further, pumping installations includes generator, motor and water pump；
Generator is electrically connected with motor, and generator is used to provide electric energy for motor；
Water pump has inlet and liquid outlet, water pump and motor connection, and motor is used to drive pump working.
Further, the first pipeline section and the second pipeline section are flexible pipe.
Further, the internal diameter of the internal diameter of the first pipeline section and the second pipeline section is not less than 200mm.
Further, storage facilities is holding vessel.
Further, storage equipment is provided with water storage point, is extracted by the water by water supply point of each water plug step by step
It is stored in after to water storage point in storage equipment.
Based on above-mentioned second purpose, the present invention provides a kind of pumping system, including multiple storage facilities and multiple dresses that draw water
Put, a storage facilities is set between two water plugs.
The beneficial effects of the invention are as follows：
The present invention provides a kind of pumping method, is provided with multistage storage facilities between water supply point and water storage point, water supply point with
Between two storage facilities between primary storage facilities, adjacent, it is both provided with drawing water between final stage storage facilities and water point
Device.The water of water supply point is drawn into primary storage facilities by water plug, then is drawn water by each between storage facilities
Device step by step by water from primary storage facilities is drawn into final stage storage facilities, finally again water plug by final stage storage facilities
In water be drawn at water storage point, so as to complete whole pump process.Each water plug is caused using the pumping method of classification
The pressure that draws water it is relatively low, can will effectively draw water Stress control in below 1.6Mpa, will not occur pipeline accident.
The present invention provides a kind of pumping system, including multiple storage facilities and multiple water plugs, two water plugs it
Between set a storage facilities, the pressure that draws water of water plug is relatively low in pump process, will not occur pipeline accident.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the schematic diagram that draws water for the pumping method that the embodiment of the present invention 1 is provided；
Fig. 2 is the first water plug, the first storage facilities and the second storage facilities three that the embodiment of the present invention 1 is provided
Connection figure；
Fig. 3 is the structural representation for the pumping installations that the embodiment of the present invention 1 is provided；
Fig. 4 is the structural representation for the pumping system that the embodiment of the present invention 2 is provided.
Icon：10- water supply points；20- water storages point；21- storage equipments；30- storage facilities；31- primary storage facilities；32-
Final stage storage facilities；The storage facilities of 33- first；The storage facilities of 34- second；40- water plugs；The water plugs of 41- first；411-
Pipeline；The pipeline sections of 4111- first；The pipeline sections of 4112- second；412- pumping installations；4121- generators；4122- motors；4123- water
Pump；4124- inlets；4125- liquid outlets；The water plugs of 42- second；The water plugs of 43- the 3rd；100- pumping systems.
Embodiment
In the prior art, the water required for pressure break is typically supplied water using one-stop, i.e., spread between water supply point and water storage point
If a long water supply line, and the water of water supply point is pumped to by water storage point by a water plug.This water extraction way is deposited
The problem of the pressure that draws water is big.
In addition, in the prior art, the paving mode of water supply line is generally two kinds：
One kind is that multiple seamless steel pipes are spliced, laying pipeline when need with truck by steel pipe transmission to the scene of laying,
Use crane lifting, electric welding.It can thus be seen that the paving mode of this seamless steel pipe has many limitations at present
Property.The distance of water storage point where the water supply point of mountain region water supply and well site is general more than 3 kilometers, and pipeline then needs laying 3 public
In more than.If being measured according to the 10m steel pipes of mono-, it is necessary to which the steel pipe of more than 300 is, it is necessary to truck 8-15 platforms.Space expenses, transport
Expense, cost of labor will be greatly improved.In addition, being also required to the dismounting of the cutting such as oxygen-acetylene means during dismounting, operate extremely onerous.
Another is directly laid using a long flexible pipe, is limited by water plug pressure, flexible pipe can only be adopted
Less diameter is used, displacement is smaller, it is impossible to adapt to the requirement of shale gas huge discharge.
Therefore, a kind of pumping method of the invention and pumping system are to improve above mentioned problem.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
, it is necessary to which explanation, indicating position or position relationship are based on shown in accompanying drawing in the description of the embodiment of the present invention
Orientation or position relationship, or the orientation usually put when using of the invention product or position relationship, or this area
Orientation or position relationship that technical staff usually understands, or the orientation usually put when using of the invention product or position are closed
System, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " the
One ", " second " etc. is only used for distinguishing description, and it is not intended that indicating or implying relative importance.
In the description of the embodiment of the present invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term
" setting ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected
Connect；Can be directly connected to, can also be indirectly connected with by intermediary.For the ordinary skill in the art, may be used
The concrete meaning of above-mentioned term in the present invention is understood with concrete condition.
Embodiment 1
As shown in figure 1, the present embodiment provides a kind of pumping method, to reach that the reduction pressure that draws water increases the mesh of displacement
, comprise the following steps that：
First, height and position different between water supply point 10 and water storage point 20 sets multistage storage facilities 30.Water supply point
10 be that water source place goes out, and river and well water can be used as water source.Water storage point 20 is at fractured well location, water storage point 20
Provided with storage equipment 21, storage equipment 21 is used to deposit in water, the present embodiment, and storage equipment 21 is holding vessel.Water supply point 10
Physical features is less than the physical features of water storage point 20.Multistage storage facilities 30 between water supply point 10 and water storage point 20 arrives water storage in water supply point 10
Raised step by step on the direction of point 20, i.e., the position close to the storage facilities 30 of water storage point 20 is higher than and the phase of storage facilities 30
The position of storage facilities 30 adjacent and away from water storage point 20.Certainly, in other specific embodiments, the cloth of storage facilities 30
It can be also other forms to put mode, such as, one high and one low setting of the high setting such as section store equipment 30, storage facilities 30 etc..
In actual mechanical process, multiple websites, phase can be chosen on mountain region first between water supply point 10 and water storage point 20
The height of two adjacent websites is gone on business as 150 meters, and sets storage facilities 30 at each website, so that two adjacent storages
Difference in height between equipment 30 is 150 meters.Certainly, in other specific embodiments, the distance between two adjacent websites
The difference in height being smaller than between the adjacent storage equipment 30 of 150 meters, i.e., two is less than 150.
The effect of storage facilities 30 is to be used to store in water, storage facilities 30 at different levels, and the storage near water supply point 10 is set
Standby 30 be primary storage facilities 31, and the difference in height between primary storage facilities 31 and water supply point 10 is no more than 150 meters；Near storage
The storage facilities 30 of water spot 20 is final stage storage facilities 32, and the difference in height between final stage storage facilities 32 and water storage point 20 is no more than
150 meters.In the present embodiment, storage facilities 30 is holding vessel.
Secondly, set on each website after storage facilities 30, between primary storage facilities 31 and water supply point 10, phase
Water plug 40 is set between two adjacent storage facilities 30, between final stage storage facilities 32 and water storage point 20.Primary storage
The water of water supply point 10 can be drawn into primary storage facilities 31 by the water plug 40 between equipment 31 and water supply point 10, each
Water plug 40 between storage facilities 30 can be step by step the water in primary storage facilities 31 is drawn into final stage storage facilities 32
In, the water in final stage storage facilities 32 can be drawn into water storage by the water plug 40 between final stage storage facilities 32 and water storage point 20
Point 20 goes out, i.e., by each water plug 40 can be step by step the water by water supply point 10 be drawn at EXIT POINT.
In the present embodiment, adjacent two storage facilities 30 respectively the first storage facilities 33 and the second storage facilities 34,
Position where first storage facilities 33 is less than the position of the second storage facilities 34.Taking out between two adjacent storage facilities 30
Water installations 40 are the first water plug 41, and the water plug 40 between water supply point 10 and primary storage facilities 31 draws water dress for second
42 are put, the water plug 40 between final stage storage facilities 32 and water storage point 20 is the 3rd water plug 43.First water plug 41,
Second water plug 42 is identical with the structure of the three of the 3rd water plug 43, and the first water plug 41 is retouched in detail below
State.
As shown in Fig. 2 the first water plug 41 includes pipeline 411 and pumping installations 412.Pipeline 411 includes the first pipeline section
4111 and second pipeline section 4112, the first pipeline section 4111 and the second pipeline section 4112 are flexible pipe, the first pipeline section 4111 and the second pipeline section
4112 internal diameter is not less than 200mm.In the present embodiment, as shown in figure 3, pumping installations 412 includes generator 4121, motor
4122 and water pump 4123.Generator 4121 is super-silent generator 4121, and generator 4121 is electrically connected with motor 4122, generator
4121 are used to provide electric energy for motor 4122；Water pump 4123 has inlet 4124 and liquid outlet 4125, the output of motor 4122
Axle is connected with the input shaft of water pump 4123, and motor 4122, which works, will drive water pump 4123 to work.Each equipment in pumping installations 412
Bass work can be achieved, it is to avoid cause noise pollution.As shown in Fig. 2 one end of the first pipeline section 4111 and the feed liquor of water pump 4123
Mouth 4124 is connected, and the other end of the first pipeline section 4111 is connected with the first storage facilities 33；The water pump of one end of the second pipeline section 4112
4123 liquid outlet 4125 is connected, and the other end of the second pipeline section 4112 is connected with the second storage facilities 34.When the work of generator 4121
When making, generator 4121 is that motor 4122 provides electric energy, so that motor 4122 drives water pump 4123 to work, by the first storage
Water in equipment 33 is drawn into the second storage facilities 34.
As shown in figure 1, the second water plug 42 is arranged between water supply point 10 and primary storage facilities 31, i.e., second draws water
The first pipeline section 4111 in device 42 is extended at water supply point 10, the second pipeline section 4112 in the second water plug 42 and primary storage
Equipment 31 is deposited to connect.3rd water plug 43 is arranged between final stage storage facilities 32, i.e. and first in the 3rd water plug 43
Pipeline section 4111 is connected with final stage storage facilities 32, the second pipeline section 4112 in the 3rd water plug 43 and the storage at water storage point 20
Equipment 21 is connected.During work, the water of water supply point 10 is drawn into primary storage facilities 31 by the second water plug 42, then is passed through
Each first water plug 41 between storage facilities 30 water be drawn into final stage storage from primary storage facilities 31 set step by step
In standby 32, finally the water in final stage storage facilities 32 is drawn into storage equipment 21 and stored up by the 3rd water plug 43 again
Deposit, so as to complete whole pump process.In the present embodiment, using the pumping method of classification, the difference in height between every one-level is not
More than 150 meters so that the pressure that draws water of each water plug 40 is relatively low, will effectively can draw water Stress control 1.6Mpa with
Under, will not occur pipeline accident.In addition, this classification water extraction way can make the internal diameter of the first pipeline section 4111 and the second pipeline section 4112
It is not less than 200mm, ensure that the requirement of shale pressure break huge discharge.
In addition, in the present embodiment, the first pipeline section 4111 and the second pipeline section 4112 in pipeline 411 are the convenient installation of flexible pipe
And dismounting, it is time saving and energy saving in process of deployment, the first pipeline section 4111 and the second pipeline section 4112 using be preceding disk into disk, be easy to
Transport, reduces the space shared by storage.First pipeline 411 can be the flexible pipe or multiple pipeline sections of an entirety
It is spliced by clip；Second pipe 411 can also be spelled for the flexible pipe or multiple pipeline sections of an entirety by clip
Connect and form.
Embodiment 2
As shown in figure 4, the present embodiment provides a kind of pumping system 100, including multiple storage facilities 30 and multiple dresses that draw water
Put and be correspondingly arranged a storage facilities 30 between 40, two water plugs 40.
Wherein, water plug 40 and storage facilities 30 are same with the above-mentioned embodiment, will not be repeated here.
In actual use, can by the method for above-described embodiment by pumping system 100 be arranged in water supply point 10 with
Between water storage point 20.In pump process, the pressure that draws water of water plug 40 is relatively low, will not occur pipeline accident.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of pumping method, it is characterised in that comprise the following steps：
Different height and positions sets multistage storage facilities between water supply point and water storage point；
It is primary storage facilities close to the storage facilities of the water supply point, the storage facilities close to the water storage point is
Final stage storage facilities；
Between the primary storage facilities and the water supply point, between two adjacent storage facilities, at the end
Water plug is respectively provided between level storage facilities and water storage point, passes through the water by water supply point of water plug each described step by step
It is drawn at water storage point.
2. pumping method according to claim 1, it is characterised in that from the water supply point to the direction of the water storage point
The position of the upper storage facilities at different levels is raised step by step.
3. pumping method according to claim 2, it is characterised in that the difference in height between storage facilities described in adjacent two-stage
No more than 150 meters.
4. the pumping method according to claim 2 any one, it is characterised in that set located at two adjacent storages
Water plug between standby is the first water plug, and two adjacent storage facilities are respectively the first storage facilities and second
Storage facilities, the first storage facilities position is less than the position of second storage facilities；
First water plug includes pipeline and pumping installations, and the pipeline includes the first pipeline section and the second pipeline section, the pump
Send device that there is inlet and liquid outlet, one end of first pipeline section is connected with the inlet, first pipeline section it is another
One end is connected with first storage facilities, and one end of second pipeline section is connected with the liquid outlet, second pipeline section
The other end is connected with second storage facilities.
5. pumping method according to claim 4, it is characterised in that the pumping installations includes generator, motor and water
Pump；
The generator is electrically connected with the motor, and the generator is used to provide electric energy for the motor；
The water pump has the inlet and liquid outlet, the water pump and the motor connection, and the motor is used to drive institute
State pump working.
6. pumping method according to claim 4, it is characterised in that first pipeline section and the second pipeline section are flexible pipe.
7. pumping method according to claim 4, it is characterised in that the internal diameter of first pipeline section and second pipeline section
Internal diameter be not less than 200mm.
8. pumping method according to claim 1, it is characterised in that the storage facilities is holding vessel.
9. pumping method according to claim 1, it is characterised in that storage equipment is provided with the water storage point, by each
The water by the water supply point of the individual water plug step by step is stored in the storage equipment after being drawn into the water storage point.
10. a kind of pumping system, it is characterised in that including multiple storage facilities and multiple water plugs, two water plugs it
Between set a storage facilities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710668668.7A CN107254894A (en) | 2017-08-07 | 2017-08-07 | A kind of pumping method and pumping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710668668.7A CN107254894A (en) | 2017-08-07 | 2017-08-07 | A kind of pumping method and pumping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107254894A true CN107254894A (en) | 2017-10-17 |
Family
ID=60026385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710668668.7A Pending CN107254894A (en) | 2017-08-07 | 2017-08-07 | A kind of pumping method and pumping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107254894A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202767168U (en) * | 2012-06-26 | 2013-03-06 | 广西佛泵科技有限公司 | Multistage long-distance booster pump station |
| CN103122878A (en) * | 2011-11-18 | 2013-05-29 | 易宏举 | Siphon pipeline pumping system |
| CN104895141A (en) * | 2015-06-25 | 2015-09-09 | 重庆理工大学 | Photovoltaic stepwise pumping system suitable for mountain areas |
| CN205188898U (en) * | 2015-12-08 | 2016-04-27 | 成都广雄科技有限公司 | Continuous pumping system |
| CN205776543U (en) * | 2016-05-30 | 2016-12-07 | 烟台磐能电气控制系统有限公司 | A kind of multi stage pumping station combined control system |
| CN205975783U (en) * | 2016-07-25 | 2017-02-22 | 杭州仁成环保工程有限公司 | Prefabricated pump station water supply system of multistage pressurization integration |
-
2017
- 2017-08-07 CN CN201710668668.7A patent/CN107254894A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122878A (en) * | 2011-11-18 | 2013-05-29 | 易宏举 | Siphon pipeline pumping system |
| CN202767168U (en) * | 2012-06-26 | 2013-03-06 | 广西佛泵科技有限公司 | Multistage long-distance booster pump station |
| CN104895141A (en) * | 2015-06-25 | 2015-09-09 | 重庆理工大学 | Photovoltaic stepwise pumping system suitable for mountain areas |
| CN205188898U (en) * | 2015-12-08 | 2016-04-27 | 成都广雄科技有限公司 | Continuous pumping system |
| CN205776543U (en) * | 2016-05-30 | 2016-12-07 | 烟台磐能电气控制系统有限公司 | A kind of multi stage pumping station combined control system |
| CN205975783U (en) * | 2016-07-25 | 2017-02-22 | 杭州仁成环保工程有限公司 | Prefabricated pump station water supply system of multistage pressurization integration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190211814A1 (en) | Improved distribution unit | |
| US8944168B2 (en) | High pressure multistage centrifugal pump for fracturing hydrocarbon reserves | |
| EA003220B1 (en) | Carbon dioxide pump and pumping system | |
| EP4031748B1 (en) | Wellhead boosting apparatus and system | |
| CN105239987B (en) | A kind of high-pressure manifold device of suitable annular space SAND FRACTURING TECHNOLOGY | |
| CN204532297U (en) | A kind of oil-field water injection device | |
| CN104649471A (en) | Process for processing and recycling fracturing flow-back fluid | |
| AU2021101093A4 (en) | Hydraulic Cutting Drill Hole Cinder Conveying and Separating Device | |
| CN107254894A (en) | A kind of pumping method and pumping system | |
| CN203515558U (en) | Deep-well water source well water level monitoring technological pipe column | |
| RU136483U1 (en) | PUMPING INSTALLATION FOR SIMULTANEOUSLY SEPARATE WORKING DOWNLOAD IN TWO LAYERS | |
| CN110219610B (en) | Shale gas horizontal well high-pressure pumping bridge plug device | |
| CN216556497U (en) | Oil-gas mixed transportation integrated device | |
| CN105889746B (en) | A kind of method based on Anhydrite Ore goaf natural gas-storing | |
| CN210034737U (en) | Continuous winding glass steel pipe joint capable of being externally tested | |
| CN204475356U (en) | Subway station open-cut foundation ditch precipitation well water reutilization system | |
| CN216110674U (en) | Fracturing system | |
| Zhu et al. | A robust and environment friendly artificial lift system: ESPCP with PMM | |
| CN204024542U (en) | A kind of borehole pump safety valve pressure release flow path device | |
| US11009162B1 (en) | System and method for integrated flow supply line | |
| CN203808956U (en) | Profile control device and system | |
| Dogru et al. | Multiphase pump recovers more oil in a mature carbonate reservoir | |
| CN205577015U (en) | Motor -pumped well pressurizing equipment | |
| CN207393168U (en) | A kind of air lift type oil-extraction vehicle | |
| CN2737985Y (en) | Multi-electric pump parallel system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171017 |