CN207686668U - Profile control transfer drive system - Google Patents
Profile control transfer drive system Download PDFInfo
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- CN207686668U CN207686668U CN201721768063.7U CN201721768063U CN207686668U CN 207686668 U CN207686668 U CN 207686668U CN 201721768063 U CN201721768063 U CN 201721768063U CN 207686668 U CN207686668 U CN 207686668U
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Abstract
The utility model discloses a kind of profile control transfer drive systems comprising：The first feed system and the second feed system being in parallel, wherein the first feed system includes：First Agitation Tank, first Agitation Tank are provided with the first water inlet and first outlet；First water inlet is used to be connected with for water end (W.E.)；The first mixing plant in first Agitation Tank is set；The first plunger pump being connected to the first outlet；The outlet of first plunger pump with well head for being connected；Second feed system includes：Second Agitation Tank, second Agitation Tank are provided with the second water inlet and second outlet, and second water inlet is used to be connected with for water end (W.E.)；The second mixing plant in second Agitation Tank is set；The second plunger pump being connected to the second outlet；The output of second plunger pump with well head for being connected.The utility model can ensure that work progress is continuous, avoid the occurrence of medicament in pit shaft plastic and caused by tubing string the overhauls accident such as can not extract.
Description
Technical field
The utility model is related to oil extraction in oil field technical field, more particularly to a kind of profile control transfer drive system.
Background technology
As China's major part oil field development enters the middle and later periods, long-term waterflooding extraction makes oil reservoir generally be converted into height and contain
Water or ultra-high water cut reservoir, injection water is inefficient or inefficient cycle problem becomes the common problem for restricting oil field development.In order to oil
Field mid-later development phase heterogeneous reservoir high water cut stage realizes water and oil control, improves waterflood sweep efficiency, generally use oil reservoir tune
Cut open transfer drive technology.
However, in water flood field mid-later development phase, as Reservoir Heterogeneity aggravates, the universal High water cut in oil field, current
Profile control, transfer drive, plug water construction period are long, heavy workload.Profile control device is often easy during profile control, transfer drive, plug water construction
There are various failures.When profile control device breaks down, it is necessary to which termination of pumping is repaired, and then can be largely effected on profile control, transfer drive, water blockoff and be applied
Work progress.Importantly, when profile control device breaks down progress termination of pumping repair, since construction discontinuously can also result in
Medicament in pit shaft plastic and caused by tubing string the overhauls accident such as can not extract.
To sum up, it is necessary to a kind of new technology be provided, can be overcome the deficiencies of existing technologies, can ensure to construct
Cheng Lianxu, ensure profile control, transfer drive, plug water construction progress, and avoid the occurrence of medicament in pit shaft plastic and caused by tubing string without
The overhauls accidents such as method extraction.
Utility model content
The purpose of this utility model is to provide a kind of profile control transfer drive system, can overcome the deficiencies of existing technologies, Neng Goubao
Demonstrate,prove work progress it is continuous, ensure profile control, transfer drive, plug water construction progress, and avoid the occurrence of medicament in pit shaft plastic and cause
Tubing string the overhauls accident such as can not extract.
Following technical proposal can be used to realize in the above-mentioned purpose of the utility model：
A kind of profile control transfer drive system comprising：The first feed system and the second feed system being in parallel, wherein
First feed system includes：First Agitation Tank, first Agitation Tank are provided with the first water inlet and first
Outlet；First water inlet is used to be connected with for water end (W.E.)；The first mixing plant in first Agitation Tank is set；With
First plunger pump of the first outlet connection；The outlet of first plunger pump with well head for being connected；
Second feed system includes：Second Agitation Tank, second Agitation Tank are provided with the second water inlet and second
Outlet, second water inlet are used to be connected with for water end (W.E.)；The second mixing plant in second Agitation Tank is set；With
Second plunger pump of the second outlet connection；The output of second plunger pump with well head for being connected.
In one preferred embodiment, be provided on first water inlet for being connected to for water end (W.E.) first into
Water pipeline is provided with first in first back with water inlet line and carrys out water valve；
The second back with water inlet line for being connected to for water end (W.E.), second back with water inlet line are provided on second water inlet
On be provided with second and carry out water valve.
In one preferred embodiment, further include the first threeway, first threeway have the first water outlet, second
Water outlet and the first water inlet, first water inlet are connected with described for water end (W.E.), first water outlet and described first
Carry out water valve to be connected, second water outlet carrys out water valve with described second and is connected.
In one preferred embodiment, the upstream of first water inlet is additionally provided with induction valve.
In one preferred embodiment, the well head is provided with well head main valve and oil pipe production valve,
The first outlet of first plunger pump is provided with the first outlet tube line between producing valve to the oil pipe, described
The first outlet position is provided with the first liquid valve on first outlet tube line；
The second outlet of second plunger pump is provided with the second outlet tube line between producing valve to the oil pipe, described
The second outlet position is provided with the second liquid valve on second outlet tube line.
In one preferred embodiment, it is provided in the downstream of first liquid valve on the first outlet tube line
First flowmeter；The downstream of second liquid valve is provided with second flowmeter on the second outlet tube line.
In one preferred embodiment, the first outlet tube line and the second outlet tube line are close to the oil
The downstream line that pipe produces valve has public outlet tube line.
In one preferred embodiment, further include the second threeway, second threeway have the first inlet, second
Inlet and the first liquid outlet, first inlet are connected with the first flowmeter, second inlet with it is described
Second flowmeter is connected.
In one preferred embodiment, it is provided with pressure gauge on the public outlet tube line.
In one preferred embodiment, first plunger pump and first Agitation Tank are using integrated board house knot
Structure, second plunger pump and second Agitation Tank are using integrated board house structure.
The characteristics of the utility model and advantage are：A kind of profile control transfer drive system, profile control tune are provided in the application embodiment
Drive system is provided with the first feed system and the second feed system being in parallel, and simple in structure, reliable operation, skid is convenient,
It can realize the profile control and water plugging device that twenty four hours is continuously constructed, avoid in work progress due to constructing caused by termination of pumping
Journey is discontinuous, influences profile control, transfer drive, plug water construction progress, while avoiding due to medicament caused by termination of pumping the plastic in pit shaft,
The generation of overhauls accident such as cause tubing string and can not extract.
With reference to following description and accompanying drawings, the particular implementation of the application is disclosed in detail, specifies the original of the application
Reason can be in a manner of adopted.It should be understood that presently filed embodiment is not so limited in range.In appended power
In the range of the spirit and terms that profit requires, presently filed embodiment includes many changes, modifications and is equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
It is used in a other embodiment, it is combined with the feature in other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of profile control transfer drive system in the application embodiment.
Reference sign：
The first Agitation Tanks of 1a-, the second Agitation Tanks of 1b-, 2a- first carry out water valve, and 2b- second carrys out water valve, and the stirrings of 3a- first are set
It is standby, the second mixing plants of 3b-, the first plunger pumps of 4a-, the second plunger pumps of 4b-, the first liquid valves of 5a-, the second liquid valves of 5b-, 6a
First flowmeter, 6b- second flowmeters, the first threeways of 7a-, the second threeways of 7b-, 8- oil pipes produce valve, 9- pressure gauges, 10-
Well head main valve, 11- casings produce valve, 12- induction valves.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, elaborate to the technical solution of the utility model, it should be understood that
These embodiments are merely to illustrate the utility model rather than limitation the scope of the utility model, new having read this practicality
After type, those skilled in the art each fall within the application appended claims to the modification of the various equivalent forms of the utility model
In limited range.
It should be noted that when element is referred to as " being set to " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", "upper",
"lower", "left", "right" and similar statement for illustrative purposes only, are not offered as being unique embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
Any and all combinations of relevant Listed Items.
The utility model provide it is a kind of can the profile control transfer drive system continuously constructed of twenty four hours, existing skill can be overcome
The defect of art can ensure that work progress is continuous, ensure profile control, transfer drive, plug water construction progress, and avoid the occurrence of medicament in well
Plastic in cylinder and caused by tubing string the overhauls accident such as can not extract.
Referring to Fig. 1, a kind of profile control transfer drive system provided in the application embodiment, which can wrap
It includes：The first feed system and the second feed system being in parallel, wherein first feed system includes：First Agitation Tank 1a,
The first Agitation Tank 1a is provided with the first water inlet and first outlet；First water inlet is used to be connected with for water end (W.E.)；
The first mixing plant 3a in the first Agitation Tank 1a is set；The first plunger pump 4a being connected to the first outlet；Institute
The outlet of the first plunger pump 4a is stated for being connected with well head；Second feed system includes：Second Agitation Tank 1b, described
Two Agitation Tank 1b are provided with the second water inlet and second outlet, and second water inlet is used to be connected with for water end (W.E.)；Setting exists
The second mixing plant 3b in the second Agitation Tank 1b；The second plunger pump 4b being connected to the second outlet；Described second
The output of plunger pump 4b with well head for being connected.
In the present embodiment, which may include the first feed system being in parallel and the second supply system
System.First feed system and the second feed system can alternately inject chemical agent to well head, to realize continuous construction.
Specifically, first feed system may include：First Agitation Tank 1a, the first Agitation Tank 1a is provided with first
Water inlet and first outlet；First water inlet is used to be connected with for water end (W.E.)；It is arranged in the first Agitation Tank 1a
First mixing plant 3a；The first plunger pump 4a being connected to the first outlet；The outlet of the first plunger pump 4a be used for and
Well head is connected.Wherein, it being provided with mixing plant in the first Agitation Tank 1a, is stirred when for matching liquid.Described first
Integrated board house structure may be used in plunger pump 4a and the first Agitation Tank 1a, so that whole system is compact-sized, sled
Dress is convenient.
Second feed system may include：Second Agitation Tank 1b, the second Agitation Tank 1b is provided with the second water inlet
Mouth and second outlet, second water inlet are used to be connected with for water end (W.E.)；It is arranged second in the second Agitation Tank 1b
Mixing plant 3b；The second plunger pump 4b being connected to the second outlet；The output of the second plunger pump 4b is used for and well head
It is connected.Wherein, it being provided with mixing plant in the second Agitation Tank 1b, is stirred when for matching liquid.Second plunger
4b and the second Agitation Tank 1b are pumped using integrated board house structure, so that whole system is compact-sized, skid is convenient.
In one embodiment, the first water inlet pipe for being connected to for water end (W.E.) is provided on first water inlet
Line is provided with first in first back with water inlet line and carrys out water valve 2a；It is provided on second water inlet and is used for and connects for water end (W.E.)
The second logical back with water inlet line is provided with second in second back with water inlet line and carrys out water valve 2b.
Wherein, described first carrys out water valve 2a for controlling for the connected relation between water end (W.E.) and the first Agitation Tank 1a.Work as institute
When stating first and carrying out water valve 2a and open, for being connected between water end (W.E.) and the first Agitation Tank 1a, the first water inlet can be passed through for the water of water end (W.E.)
Pipeline enters in the first Agitation Tank 1a.When described first, which carrys out water valve 2a, closes, do not connect for water end (W.E.) and the first Agitation Tank 1a
It is logical.Specifically, this first carrys out the form that water valve 2a can be butterfly valve, can be reduced as far as to profile control, transfer drive, water shutoff agent
Shear action, to reduce shearing viscosity loss caused by profile control, transfer drive, water shutoff agent.
Described second carrys out water valve 2b for controlling for the connected relation between water end (W.E.) and the second Agitation Tank 1b.When described second
When carrying out water valve 2b and opening, for being connected between water end (W.E.) and the second Agitation Tank 1b, for water end (W.E.) water can by the second back with water inlet line into
Enter in the second Agitation Tank 1b.When described second, which carrys out water valve 2b, closes, it is not connected to the second Agitation Tank 1b for water end (W.E.).Specifically
, this second come water valve 2b can be butterfly valve form, can be reduced as far as the shearing to profile control, transfer drive, water shutoff agent work
With to reduce shearing viscosity loss caused by profile control, transfer drive, water shutoff agent.
In one embodiment, which further includes the first threeway 7a, and the first threeway 7a has the
One water outlet, the second water outlet and the first water inlet, first water inlet are connected with described for water end (W.E.), first water outlet
Mouth carrys out water valve 2a with described first and is connected, and second water outlet carrys out water valve 2b with described second and is connected.Pass through setting institute
The first threeway 7a is stated, the overall structure of profile control transfer drive system can be simplified.Specifically, first threeway 7a can be three commonly
It is logical.
The upstream of first water inlet is additionally provided with induction valve 12.The induction valve 12 for control profile control transfer drive system with
For the connected relation between water end (W.E.).When the induction valve 12 is opened, which can be connected with for water end (W.E.).Tool
Body, which can be the form of flap type, can also be other forms certainly, the application does not make to have herein
The restriction of body.It is connected in addition, the induction valve 12 can also produce valve 11 with casing, forms produced-water reinjection route.
In one embodiment, the well head is provided with well head main valve 10 and oil pipe production valve 8, first column
The first outlet of plug pump 4a is provided with the first outlet tube line between producing valve 8 to the oil pipe, on the first outlet tube line
The first outlet position is provided with the first liquid valve 5a；Second outlet to the oil pipe of the second plunger pump 4b is given birth to
It is provided with the second outlet tube line between production valve 8, the second outlet position is provided with the on the second outlet tube line
Two liquid valve 5b.
In the present embodiment, the first liquid valve 5a is used to control the break-make of the first outlet tube line.When described
In the open state, the first outlet tube line is in connected state to first liquid valve 5a, using the first plunger pump 4a,
Medicament in the first Agitation Tank 1a can be passed sequentially through the oil pipe production valve 8, well head main valve 10 injects into well.
Specifically, first liquid valve 5a can be the form of butterfly valve, can be reduced as far as cutting profile control, transfer drive, water shutoff agent
The effect of cutting, to reduce shearing viscosity loss caused by profile control, transfer drive, water shutoff agent.
In the present embodiment, the second liquid valve 5b is used to control the break-make of the second outlet tube line.When described
In the open state, the second outlet tube line is in connected state to second liquid valve 5b, using the second plunger pump 4b,
Medicament in the second Agitation Tank 1b can be passed sequentially through the oil pipe production valve 8, well head main valve 10 injects into well.
Specifically, second liquid valve 5b can be the form of butterfly valve, can be reduced as far as cutting profile control, transfer drive, water shutoff agent
The effect of cutting, to reduce shearing viscosity loss caused by profile control, transfer drive, water shutoff agent.Wherein, the oil pipe produces 8 He of valve
Well head main valve 10 can be flap type form.
When field profile control, transfer drive, plug water construction, profile control, transfer drive, plug water construction medicine are prepared with oil field recharged waste water first
Agent opens and comes water valve and induction valve 12, and profile control and water plugging medicament is added, waits for that each component adding medicine finishes and stirs evenly, after curing is good,
Liquid valve, oil pipe production valve 8 and main valve are opened, starts one of two plunger pumps, profile control, transfer drive, plug water construction is carried out, when it
In after the injection of Agitation Tank medicament, start another plunger pump and continue injection, circulation open pumps successively, until having constructed
Finish.On the whole, profile control transfer drive system provided by the present application can realize the profile control and water plugging device that twenty four hours is continuously constructed, and keep away
Exempt to influence profile control, transfer drive, plug water construction progress in work progress since work progress caused by termination of pumping is discontinuous, keep away simultaneously
The plastic in pit shaft is exempted from due to medicament caused by termination of pumping, the generation for the overhauls accident such as cause tubing string that can not extract.
In one embodiment, the downstream of the first liquid valve 5a is provided with first on the first outlet tube line
Flowmeter 6a.The downstream of the second liquid valve 5b is provided with second flowmeter 6b on the second outlet tube line.Described
Flow meters 6a, second flowmeter 6b are respectively used to the flow signal in the first outlet tube line of detection, the second outlet tube line, so as to
The injection situation of system is monitored in real time.
In one embodiment, the first outlet tube line is produced with the second outlet tube line close to the oil pipe
The downstream line of valve 8 has public outlet tube line.When the first outlet tube line and the second outlet tube line are close to the oil
When the downstream line that pipe produces valve 8 has public outlet tube line, the structure of entire profile control transfer drive system can be simplified.
Further, which can also include the second threeway 7b, the second threeway 7b have first into
Liquid mouth, the second inlet and the first liquid outlet, first inlet are connected with the first flowmeter 6a, described second into
Liquid mouth is connected with the second flowmeter 6b.
Specifically, second threeway 7b can be the Highpressure Tee for capableing of pressure-bearing, pass through the first plunger pump 4a or the second column
Medicament after plug pump 4b pressurizations can be entered by the first inlet of the Highpressure Tee or the second inlet, then by its
One liquid outlet flows out, and by public outlet tube line, flows to well head.
Wherein, first inlet can be connected with the first flowmeter 6a, wherein the connection can be direct
Connection, or being indirectly connected with after being coordinated by pipeline.Second inlet can be with the second flowmeter 6b phases
Connection, wherein the connection can be to be directly connected to, or being indirectly connected with after being coordinated by pipeline.
In one embodiment, it is also provided with pressure gauge 9 on the public outlet tube line.The pressure gauge 9 is used for
The real-time pressure of the medicament of detection injection well head.It, can be by adjusting plunger pump when the hypotony of the pressure gauge 9 display
Parameter is to improve the pressure in outlet tube line, so as to reliably will be in medicament injection well.
On the whole, profile control transfer drive system provided herein is provided with the first feed system being in parallel and second and supplies
To system, simple in structure, reliable operation, skid is convenient, can realize the profile control and water plugging device that twenty four hours is continuously constructed,
It avoids in work progress since work progress caused by termination of pumping is discontinuous, influences profile control, transfer drive, plug water construction progress, simultaneously
The plastic in pit shaft is avoided due to medicament caused by termination of pumping, the generation for the overhauls accident such as cause tubing string that can not extract.
Herein cited any digital value all include between lower limiting value to upper limit value with the lower value of an incremented and
The all values of upper value, there are the intervals of at least two units between any lower value and any much higher value.For example, such as
Fruit elaborates that the quantity of component or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20
To 80, more preferably from 30 to 70, then purpose is arrived in order to illustrate also clearly listing such as 15 to 85,22 in the specification
68,43 to 51,30 to 32 is equivalent.For the value less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1.
These are only intended to the example clearly expressed, it is believed that the numerical value enumerated between minimum and peak is possible to
Combination is all expressly set forth in the specification in a similar manner.
Unless otherwise indicated, all ranges all include all numbers between endpoint and endpoint.It is used together with range
" about " or " approximation " be suitable for two endpoints of the range.Thus, " about 20 to 30 " are intended to covering " about 20 to about
30 ", including at least the endpoint indicated.
All articles and reference disclosed, including patent application and publication, for various purposes by quoting knot
Together in this.The term " substantially by ... constitute " for describing combination should include identified element, ingredient, component or step and reality
Other elements, ingredient, component or the step of the basic novel feature of the combination are not influenced in matter.Using term "comprising" or
" comprising " describes the combination of element here, ingredient, component or step it is also contemplated that substantially by these elements, ingredient, component
Or the embodiment that step is constituted.Here by using term " can with ", it is intended to illustrate that " can with " includes described any
Attribute is all optional.
Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally
Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used for
The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component
Or step.
Above-mentioned each embodiment in this specification is described in a progressive manner, identical between each embodiment
Similar portion is cross-referenced, and what each embodiment stressed is and other embodiment difference.
The foregoing is merely several embodiments of the utility model, although the embodiment disclosed by the utility model is such as
On, but the content is only to facilitate the embodiment for understanding the utility model and using, it is new to be not intended to limit this practicality
Type.Any those skilled in the art of the present invention are not departing from the spirit and scope disclosed by the utility model
Under the premise of, any modification and variation, but the patent of the utility model can be made in the formal and details of embodiment
Protection domain must be still subject to the scope defined in the appended claims.
Claims (10)
1. a kind of profile control transfer drive system, which is characterized in that including：The first feed system and the second feed system being in parallel,
In,
First feed system includes：First Agitation Tank, first Agitation Tank are provided with the first water inlet and first outlet；
First water inlet is used to be connected with for water end (W.E.)；The first mixing plant in first Agitation Tank is set；With it is described
First plunger pump of first outlet connection；The outlet of first plunger pump with well head for being connected；
Second feed system includes：Second Agitation Tank, second Agitation Tank are provided with the second water inlet and second outlet,
Second water inlet is used to be connected with for water end (W.E.)；The second mixing plant in second Agitation Tank is set；With it is described
Second plunger pump of second outlet connection；The output of second plunger pump with well head for being connected.
2. profile control transfer drive system as described in claim 1, which is characterized in that be provided on first water inlet and be used for and supply
First back with water inlet line of water end (W.E.) connection, is provided with first in first back with water inlet line and carrys out water valve；
It is provided with the second back with water inlet line for being connected to for water end (W.E.) on second water inlet, is set in second back with water inlet line
It is equipped with second and carrys out water valve.
3. profile control transfer drive system as claimed in claim 2, which is characterized in that further include the first threeway, the first threeway tool
There are the first water outlet, the second water outlet and the first water inlet, first water inlet to be connected for water end (W.E.) with described, described first
Water outlet carrys out water valve with described first and is connected, and second water outlet carrys out water valve with described second and is connected.
4. profile control transfer drive system as claimed in claim 3, which is characterized in that the upstream of first water inlet, which is additionally provided with, to be sent
Water valve.
5. profile control transfer drive system as described in claim 1, which is characterized in that the well head is provided with well head main valve and oil pipe
Valve is produced,
The first outlet of first plunger pump is provided with the first outlet tube line between producing valve to the oil pipe, and described first
The first outlet position is provided with the first liquid valve on outlet tube line；
The second outlet of second plunger pump is provided with the second outlet tube line between producing valve to the oil pipe, and described second
The second outlet position is provided with the second liquid valve on outlet tube line.
6. profile control transfer drive system as claimed in claim 5, which is characterized in that go out described first on the first outlet tube line
The downstream of liquid valve is provided with first flowmeter；The downstream of second liquid valve is provided with second on the second outlet tube line
Flowmeter.
7. profile control transfer drive system as claimed in claim 6, which is characterized in that the first outlet tube line and described second goes out liquid
Pipeline has public outlet tube line in the downstream line for producing valve close to the oil pipe.
8. profile control transfer drive system as claimed in claim 7, which is characterized in that further include the second threeway, the second threeway tool
There are the first inlet, the second inlet and the first liquid outlet, first inlet is connected with the first flowmeter, described
Second inlet is connected with the second flowmeter.
9. profile control transfer drive system as claimed in claim 8, which is characterized in that be provided with pressure on the public outlet tube line
Table.
10. profile control transfer drive system as described in claim 1, which is characterized in that first plunger pump and described first matches liquid
Tank is using integrated board house structure, second plunger pump and second Agitation Tank using integrated board house structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721768063.7U CN207686668U (en) | 2017-12-18 | 2017-12-18 | Profile control transfer drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721768063.7U CN207686668U (en) | 2017-12-18 | 2017-12-18 | Profile control transfer drive system |
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| Publication Number | Publication Date |
|---|---|
| CN207686668U true CN207686668U (en) | 2018-08-03 |
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ID=62997838
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|---|---|---|---|
| CN201721768063.7U Active CN207686668U (en) | 2017-12-18 | 2017-12-18 | Profile control transfer drive system |
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|---|---|
| CN (1) | CN207686668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772202A (en) * | 2018-09-17 | 2019-05-21 | 中国石油天然气股份有限公司 | The adding apparatus and method of surfactant oil displacement |
-
2017
- 2017-12-18 CN CN201721768063.7U patent/CN207686668U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772202A (en) * | 2018-09-17 | 2019-05-21 | 中国石油天然气股份有限公司 | The adding apparatus and method of surfactant oil displacement |
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