CN206220907U - Protective casing bleeds off pressure device and the pumpingh well system with it - Google Patents

Protective casing bleeds off pressure device and the pumpingh well system with it Download PDF

Info

Publication number
CN206220907U
CN206220907U CN201621235791.7U CN201621235791U CN206220907U CN 206220907 U CN206220907 U CN 206220907U CN 201621235791 U CN201621235791 U CN 201621235791U CN 206220907 U CN206220907 U CN 206220907U
Authority
CN
China
Prior art keywords
bend pipe
protective casing
straight tube
connectivity structure
pipe
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.)
Active
Application number
CN201621235791.7U
Other languages
Chinese (zh)
Inventor
张蘅瑜
赵林
彭文军
王守理
张兴利
乔志刚
赵广智
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Natural Gas Co Ltd
Original Assignee
China Petroleum and Natural Gas Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Natural Gas Co Ltd filed Critical China Petroleum and Natural Gas Co Ltd
Priority to CN201621235791.7U priority Critical patent/CN206220907U/en
Application granted granted Critical
Publication of CN206220907U publication Critical patent/CN206220907U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Joints Allowing Movement (AREA)

Abstract

The utility model bleeds off pressure device and the pumpingh well system with it there is provided a kind of protective casing, wherein, protective casing bleeds off pressure device, including:Multiple first straight tubes, the bearing of trend of each first straight tube is identical, is connected by the first connector between two adjacent the first straight tubes;Upper connectivity structure, is arranged in multiple first straight tubes on the pipe port of that is located at the top, and upper connectivity structure connect with multiple first straight tubes, and upper connectivity structure has and exports;Lower connectivity structure, is arranged in multiple first straight tubes on the pipe port of that is located at bottom, and lower connectivity structure has import, and import covers valve and connects with the skill of protective casing.The technical solution of the utility model can be efficiently solved arranges inconvenient operation, operating cost problem high outside the pressure of protective casing of the prior art.

Description

Protective casing bleeds off pressure device and the pumpingh well system with it
Technical field
The utility model is related to protective casing to bleed off pressure technical field, and device is bled off pressure in particular to a kind of protective casing And the pumpingh well system with it.
Background technology
In pumpingh well in early days, due to being limited by cementing technology, sleeve pipe (production casing, protective casing etc.) is universal with pressure.Its In, protective casing is with pressure to cause broken skill set pressure dial plate, cock breakage and skill set gate oil gas occur and pierce the problems such as leaking.Existing In having a technology, when promptly being speedily carried out rescue work for above-mentioned produced problem, rely primarily on well workover team and take and repair the outer row of operation connection Pipeline, regularly carries out being arranged outside skill set pressure, but can so produce workover treatment expense higher, and is not fee to ring Border produces certain pollution.
Utility model content
Main purpose of the present utility model is to provide a kind of protective casing to bleed off pressure device and the pumpingh well system with it, It is high to arrange inconvenient operation, operating cost outside the pressure for solving the problems, such as protective casing of the prior art.
To achieve these goals, according to one side of the present utility model, there is provided a kind of protective casing bleeds off pressure device, Including:Multiple first straight tubes, the bearing of trend of each first straight tube is identical, by the first connection between two adjacent the first straight tubes Part is connected;Upper connectivity structure, is arranged in multiple first straight tubes on the pipe port of that is located at the top, and upper connection knot Structure is connected with multiple first straight tubes, and upper connectivity structure has outlet;Lower connectivity structure, is arranged in multiple first straight tubes and is located at most On the pipe port of of lower section, and lower connectivity structure has import, and import is connected with the skill set valve of protective casing.
Further, upper connectivity structure includes the first bend pipe, positioned at the top in the first bend pipe and multiple first straight tubes One is connected by the second connector, and the first bend pipe is rotatable relative to first straight tube.
Further, upper connectivity structure also includes the second bend pipe, the first bend pipe be located at the second bend pipe and the second connector it Between, the second bend pipe and the first bend pipe are connected by the 3rd connector, and the second bend pipe is rotatable relative to the first bend pipe.
Further, upper connectivity structure also includes the second straight tube, and the second bend pipe is located between the first bend pipe and the second straight tube, Second straight tube and the second bend pipe are connected by the 4th connector, and the second straight tube forms outlet away from the pipe port of the second bend pipe.
Further, lower connectivity structure includes the 3rd bend pipe, positioned at bottom in the 3rd bend pipe and multiple first straight tubes One is connected by the 5th connector, and the 3rd bend pipe is rotatable relative to first straight tube.
Further, lower connectivity structure also includes the 4th bend pipe, the 3rd bend pipe be located at the 4th bend pipe and the 5th connector it Between, the 4th bend pipe and the 3rd bend pipe are connected by the 6th connector, and the 4th bend pipe is rotatable relative to the 3rd bend pipe.
Further, lower connectivity structure also includes the 3rd straight tube, and the 4th bend pipe is located between the 3rd bend pipe and the 3rd straight tube, 3rd straight tube and the 4th bend pipe are connected by the 7th connector, and the 3rd straight tube forms import away from the pipe port of the 4th bend pipe.
Further, upper connectivity structure includes:4th straight tube;Upper movable elbow, upper movable elbow connect the 4th straight tube and One of the top is located in multiple first straight tubes, the 4th straight tube forms outlet away from the pipe port of upper movable elbow.
Further, lower connectivity structure includes:5th straight tube;Lower movable elbow, lower movable elbow connect the 5th straight tube and One of bottom is located in multiple first straight tubes, the 5th straight tube forms import away from the pipe port of lower movable elbow.
According to another aspect of the present utility model, there is provided a kind of pumpingh well system, including sleeve pipe, it is arranged in sleeve pipe Flow line and the gathering line connected with flow line, are provided with production valve on flow line, sleeve pipe includes technology set Pipe, is provided with skill set valve on protective casing, pumpingh well system also bleeds off pressure device including protective casing, and protective casing bleeds off pressure device For above-mentioned protective casing bleeds off pressure device, the import of lower connectivity structure is connected with skill set valve, the outlet and life of upper connectivity structure Produce valve connection.
Using the technical solution of the utility model, connectivity structure is with in the overall two ends setting of multiple first straight tubes Connectivity structure, the bearing of trend of each first straight tube is identical, is connected by the first connector between two adjacent the first straight tubes, on Connectivity structure has outlet, and lower connectivity structure has import.When needing the inside to protective casing to carry out bleeding off pressure operation, operation Personnel first connect the import of lower connectivity structure with the skill set valve of protective casing, then open skill set valve, in protective casing Oil-gas-liquid by lower connectivity structure, multiple first straight tubes, upper connectivity structure, and can be discharged by the outlet of upper connectivity structure.On State the simple structure that protective casing bleeds off pressure device, it is possible to achieve operating personnel voluntarily connect implementation and bleed off pressure, save outside well workover team and arrange The expense construct, speedily carried out rescue work, efficiently avoid skill and covers potential safety hazard with pressure.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing being further understood to of the present utility model, this practicality New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model. In the accompanying drawings:
Fig. 1 shows the structural representation of the embodiment one that device is bled off pressure according to protective casing of the present utility model;
Fig. 2 shows that the protective casing of Fig. 1 bleeds off pressure the schematic front view of device;
Fig. 3 shows that the protective casing of Fig. 1 bleeds off pressure the schematic side view of device;And
Fig. 4 shows that the protective casing of Fig. 1 bleeds off pressure the schematic top plan view of device.
Wherein, above-mentioned accompanying drawing is marked including the following drawings:
10th, the first straight tube;20th, the first connector;31st, the first bend pipe;32nd, the second connector;33rd, the second bend pipe;34th, Three connectors;35th, the second straight tube;36th, the 4th connector;41st, the 3rd bend pipe;42nd, the 5th connector;43rd, the 4th bend pipe;44、 6th connector;45th, the 3rd straight tube;46th, the 7th connector.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.The description only actually at least one exemplary embodiment is illustrative below, never as to this practicality New and its application or any limitation for using.Based on the embodiment in the utility model, those of ordinary skill in the art are not having There is the every other embodiment made and being obtained under the premise of creative work, belong to the scope of the utility model protection.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative Be also intended to include plural form, additionally, it should be understood that, when in this manual use term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step for otherwise illustrating in these embodiments Scope of the present utility model is not limited up to formula and numerical value.Simultaneously, it should be appreciated that each shown in accompanying drawing for the ease of description The size of individual part is not to be drawn according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant Art, method and apparatus may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered as awarding Weigh a part for specification.In all examples shown here and discussion, any occurrence should be construed as merely example Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that:It is similar Label and letter similar terms is represented in following accompanying drawing, therefore, once be defined in a certain Xiang Yi accompanying drawing, then with It need not be further discussed in accompanying drawing afterwards.
In description of the present utility model, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " laterally, Vertically, vertically, level " and the indicated orientation such as " top, bottom " or position relationship be normally based on orientation shown in the drawings or position Relation is put, description the utility model is for only for ease of and is simplified description, in the case where opposite explanation is not made, these nouns of locality Do not indicate that and imply that the device or element of meaning there must be specific orientation or with specific azimuth configuration and operation, because This is it is not intended that limitation to the utility model protection domain;The noun of locality " inside and outside " refers to the wheel relative to each part in itself Wide is inside and outside.
For the ease of description, space relative terms can be used herein, such as " ... on ", " ... top ", " in ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure Outside different azimuth in use or operation.If for example, the device in accompanying drawing is squeezed, be described as " in other devices To be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and " in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and And respective explanations are made to the relative description in space used herein above.
Furthermore, it is necessary to explanation, limits parts, it is only for be easy to using the word such as " first ", " second " Corresponding parts are distinguished, such as without Stated otherwise, above-mentioned word does not have particular meaning, therefore it is not intended that to this The limitation of utility model protection scope.
As shown in Figure 1 to Figure 3, the protective casing of embodiment one bleeds off pressure device for being carried out to the pressure inside protective casing Release.Specifically, above-mentioned protective casing bleeds off pressure device includes multiple first straight tubes 10, upper connectivity structure and lower connectivity structure. Wherein, the bearing of trend of each first straight tube 10 is identical, is connected by the first connector 20 between two adjacent the first straight tubes 10. Upper connectivity structure is arranged in multiple first straight tubes 10 on the pipe port of that is located at the top, and upper connectivity structure with it is many Individual first straight tube 10 is connected, and upper connectivity structure has outlet.Lower connectivity structure is arranged under being located at most in multiple first straight tubes 10 On the pipe port of of side, and lower connectivity structure has import.The import is connected with the skill set valve of protective casing.
Device is bled off pressure using the protective casing of the present embodiment, is set at the overall two ends of multiple first straight tubes 10 and connected Structure and lower connectivity structure, the bearing of trend of each first straight tube 10 are identical, and first is passed through between two adjacent the first straight tubes 10 Connector 20 is connected, and upper connectivity structure has outlet, and lower connectivity structure has import.Carried out when the inside to protective casing is needed When bleeding off pressure operation, operating personnel first connect the import of lower connectivity structure with the skill set valve of protective casing, then open skill sleeving valve Door, oil-gas-liquid in protective casing can be by lower connectivity structure, multiple first straight tubes 10, upper connectivity structure, and by upper connection The outlet discharge of structure.Above-mentioned protective casing bleeds off pressure the simple structure of device, it is possible to achieve operating personnel voluntarily connect implementation and put Pressure, saves the expense for applying work, speedily carrying out rescue work outside well workover team, efficiently avoid skill and covers potential safety hazard with pressure.
As shown in Figure 1 to Figure 3, during the protective casing in embodiment one bleeds off pressure device, multiple first straight tubes 10 are set, and Connected by the first connector 20 between two adjacent the first straight tubes 10, the side connected using above-mentioned multiple first straight tubes 10 Formula, can improve the overall pressure-resistant effect of pipeline, prevent from bleeding off pressure pipeline being deformed under high pressure.In the present embodiment, first Straight tube 10 is two, and the first connector 20 is oily nonyl (i.e. pipe union).Above-mentioned oily nonyl include two threaded connection cylinders and Two fixed cylinders of threaded connection cylinder junction are set in, each threaded connection cylinder is rotatable relative to fixed cylinder.Two first The end of straight tube 10 is connected on two threaded connection cylinders of oily nonyl by screw thread, can thus make two the first straight tubes 10 can relatively rotate.Certainly, the type not limited to this of the particular number of the first straight tube 10 and the first connector 20, in figure not In the implementation method for showing, the quantity of the first straight tube can be selected according to the depth of protective casing, and the first connector also may be used Think the connector of other forms.
As shown in Figures 1 to 4, during the protective casing in embodiment one bleeds off pressure device, upper connectivity structure includes the first bend pipe 31st, the second bend pipe 33 and the second straight tube 35.Wherein, one of the top is located in the first bend pipe 31 and two the first straight tubes 10 Connected by the second connector 32, and the first bend pipe 31 is rotatable relative to first straight tube 10.First bend pipe 31 is located at the Between two bend pipes 33 and the second connector 32, the second bend pipe 33 is connected with the first bend pipe 31 by the 3rd connector 34, and the Two bend pipes 33 are rotatable relative to the first bend pipe 31.Second bend pipe 33 is located between the first bend pipe 31 and the second straight tube 35, and second Straight tube 35 is connected with the second bend pipe 33 by the 4th connector 36, and the second straight tube 35 is formed out away from the pipe port of the second bend pipe 33 Mouthful.Said structure can neatly adjustment technology sleeve pipe bleed off pressure device pipeline trend so that its more adapt on well, well Lower environment, meets use requirement.In the present embodiment, the second connector 32, the 3rd connector 34 and the 4th connector 36 are equal It is oily nonyl.Certainly, the concrete structure not limited to this of upper connectivity structure, in other embodiments, upper connectivity structure can be it His connectivity structure.
As shown in Figure 1 to Figure 3, during the protective casing in embodiment one bleeds off pressure device, lower connectivity structure includes the 3rd bend pipe 41st, the 4th bend pipe 43 and the 3rd straight tube 45.Wherein, one of bottom is located in the 3rd bend pipe 41 and two the first straight tubes 10 Connected by the 5th connector 42, and the 3rd bend pipe 41 is rotatable relative to first straight tube 10.3rd bend pipe 41 is located at the Between four bend pipes 43 and the 5th connector 42, the 4th bend pipe 43 is connected with the 3rd bend pipe 41 by the 6th connector 44, and the Four bend pipes 43 are rotatable relative to the 3rd bend pipe 41.4th bend pipe 43 is located between the 3rd bend pipe 41 and the 3rd straight tube 45, and the 3rd Straight tube 45 is connected with the 4th bend pipe 43 by the 7th connector 46, the 3rd straight tube 45 away from the pipe port of the 4th bend pipe 43 formed into Mouthful.Said structure can neatly adjustment technology sleeve pipe bleed off pressure device pipeline trend so that its more adapt on well, well Lower environment, meets use requirement.In the present embodiment, the 5th connector 42, the 6th connector 44 and the 7th connector 46 are equal It is oily nonyl.Certainly, the concrete structure not limited to this of lower connectivity structure, in other embodiments, lower connectivity structure can be it His connectivity structure.
The protective casing of embodiment two bleeds off pressure differring primarily in that for device and embodiment one, and upper connectivity structure includes the 4th Straight tube and upper movable elbow, lower connectivity structure include the 5th straight tube and lower movable elbow.Wherein, upper movable elbow connection the 4th is straight One of the top is located in pipe and two the first straight tubes, the 4th straight tube forms outlet away from the pipe port of upper movable elbow.Under One of bottom is located in movable elbow the 5th straight tube of connection and two the first straight tubes, the 5th straight tube is away from lower movable elbow Pipe port forms import.The overbending direction of above-mentioned upper movable elbow and lower movable elbow can change, using more flexibly so that Can neatly adjustment technology sleeve pipe bleed off pressure device pipeline trend, it is more adapted on well, subsurface environment, satisfaction is used It is required that.
Present invention also provides a kind of pumpingh well system, the embodiment of the pumpingh well system according to the application include sleeve pipe, The flow line being arranged in sleeve pipe and the gathering line connected with flow line.Production valve is provided with flow line. Sleeve pipe includes protective casing.Skill set valve is provided with protective casing.Pumpingh well system also bleeds off pressure device including protective casing.Skill It is that above-mentioned protective casing bleeds off pressure device that art sleeve pipe bleeds off pressure device.The import of lower connectivity structure is connected with skill set valve.Upper connection The outlet of structure is connected with production valve.
In the pumpingh well system of the present embodiment, oil nozzle and back pressure valve are additionally provided with flow line, by skill sleeving valve The hydraulic oil gas-liquid that door is released enters into gathering line by production valve, oil nozzle, back pressure valve, so can be by technology set Hydraulic oil gas-liquid inside pipe is introduced to gathering line, reduces oil pollution.In the present embodiment, protective casing bleeds off pressure device Import is detachably connected on skill set valve, and the outlet that protective casing bleeds off pressure device is detachably connected on production valve, Protective casing is bled off pressure device Reusability, and dismount more convenient.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (10)

1. a kind of protective casing bleeds off pressure device, it is characterised in that including:
Multiple first straight tubes (10), two identical, adjacent first straight tubes of the bearing of trend of each first straight tube (10) (10) connected by the first connector (20) between;
Upper connectivity structure, is arranged in multiple first straight tubes (10) on the pipe port of that is located at the top, and institute State connectivity structure to be connected with the multiple first straight tube (10), the upper connectivity structure has outlet;
Lower connectivity structure, is arranged in multiple first straight tubes (10) on the pipe port of that is located at bottom, and institute Stating lower connectivity structure has import, and the import is connected with the skill set valve of protective casing.
2. protective casing according to claim 1 bleeds off pressure device, it is characterised in that the upper connectivity structure includes that first is curved One that the top is located in pipe (31), first bend pipe (31) and multiple first straight tubes (10) passes through the second connector (32) connect, and first bend pipe (31) is rotatable relative to first straight tube (10).
3. protective casing according to claim 2 bleeds off pressure device, it is characterised in that the upper connectivity structure also includes second Bend pipe (33), first bend pipe (31) between second bend pipe (33) and second connector (32), described Two bend pipes (33) are connected with first bend pipe (31) by the 3rd connector (34), and second bend pipe (33) relative to First bend pipe (31) is rotatable.
4. protective casing according to claim 3 bleeds off pressure device, it is characterised in that the upper connectivity structure also includes second Straight tube (35), second bend pipe (33) between first bend pipe (31) and second straight tube (35), described second Straight tube (35) is connected with second bend pipe (33) by the 4th connector (36), and second straight tube (35) is away from described second The pipe port of bend pipe (33) forms the outlet.
5. protective casing according to any one of claim 1 to 4 bleeds off pressure device, it is characterised in that the lower connection knot Structure includes the 3rd bend pipe (41), and that bottom is located in the 3rd bend pipe (41) and multiple first straight tubes (10) is led to The connection of the 5th connector (42) is crossed, and the 3rd bend pipe (41) is rotatable relative to first straight tube (10).
6. protective casing according to claim 5 bleeds off pressure device, it is characterised in that the lower connectivity structure also includes the 4th Bend pipe (43), the 3rd bend pipe (41) between the 4th bend pipe (43) and the 5th connector (42), described Four bend pipes (43) are connected with the 3rd bend pipe (41) by the 6th connector (44), and the 4th bend pipe (43) relative to 3rd bend pipe (41) is rotatable.
7. protective casing according to claim 6 bleeds off pressure device, it is characterised in that the lower connectivity structure also includes the 3rd Straight tube (45), the 4th bend pipe (43) between the 3rd bend pipe (41) and the 3rd straight tube (45), the described 3rd Straight tube (45) is connected with the 4th bend pipe (43) by the 7th connector (46), and the 3rd straight tube (45) is away from the described 4th The pipe port of bend pipe (43) forms the import.
8. protective casing according to claim 1 bleeds off pressure device, it is characterised in that the upper connectivity structure includes:
4th straight tube;
Upper movable elbow, the upper movable elbow is located at the top in connecting the 4th straight tube and multiple first straight tubes One, the 4th straight tube forms the outlet away from the pipe port of the upper movable elbow.
9. the protective casing according to claim 1 or 8 bleeds off pressure device, it is characterised in that the lower connectivity structure includes:
5th straight tube;
Lower movable elbow, the lower movable elbow is located at bottom in connecting the 5th straight tube and multiple first straight tubes One, the 5th straight tube forms the import away from the pipe port of the lower movable elbow.
10. a kind of pumpingh well system, including sleeve pipe, the flow line being arranged in described sleeve pipe and with the flow line connect Logical gathering line, is provided with production valve on the flow line, described sleeve pipe includes protective casing, on the protective casing It is provided with skill set valve, it is characterised in that the pumpingh well system also bleeds off pressure device including protective casing, and the protective casing is put Press-fit the protective casing being set to any one of claim 1 to 9 and bleed off pressure device, the import of the lower connectivity structure with The skill set valve connection, the outlet of the upper connectivity structure is connected with the production valve.
CN201621235791.7U 2016-11-17 2016-11-17 Protective casing bleeds off pressure device and the pumpingh well system with it Active CN206220907U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621235791.7U CN206220907U (en) 2016-11-17 2016-11-17 Protective casing bleeds off pressure device and the pumpingh well system with it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621235791.7U CN206220907U (en) 2016-11-17 2016-11-17 Protective casing bleeds off pressure device and the pumpingh well system with it

Publications (1)

Publication Number Publication Date
CN206220907U true CN206220907U (en) 2017-06-06

Family

ID=58789765

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621235791.7U Active CN206220907U (en) 2016-11-17 2016-11-17 Protective casing bleeds off pressure device and the pumpingh well system with it

Country Status (1)

Country Link
CN (1) CN206220907U (en)

Similar Documents

Publication Publication Date Title
CN205100930U (en) Multistage preventer pressure testing system of well head and pressure testing device thereof
GB2444871A (en) Communicating fluids with a heated fluid generation system
CN206220907U (en) Protective casing bleeds off pressure device and the pumpingh well system with it
CN204922334U (en) Isobaric reposition of redundant personnel pipeline
CN207095660U (en) A kind of flowmeter on-line testing system
CN205781582U (en) A kind of rustless steel telescopic pipes
CN202628056U (en) Full-automatic dosing device for well mouth
CN106761616A (en) A kind of water injection well online injection acidifying construction operation manifold used
CN201469799U (en) Transfusion device hose, dropping funnel and light-resistant transfusion device
CN206221860U (en) A kind of silk acting flange with check valve structure
CN206309365U (en) A kind of water injection well online injection acidifying construction operation manifold used
CN109958405B (en) Oil well wellhead non-stop production replacement flow device
CN207569384U (en) A kind of water inlet pipe with the dismantled and assembled attaching nut of check-valves
CN207741836U (en) A kind of liquid flow standard device
CN202467795U (en) Water distributor special for separated injection, ball injection and profile control of water injection well
CN206239805U (en) A kind of Medical enemator
CN206582443U (en) A kind of flexible metal tube
CN204033994U (en) A kind of Novel anti-blockage peritoneal cavity drainage tube
CN205961586U (en) Medicine water assisted adds device
CN207454969U (en) It is a kind of new to oil nozzle conduit coupling
CN205859233U (en) A kind of water knockout drum
CN203671928U (en) Water supply pipe device for rapid connection type water heater
CN216045641U (en) Portable pipeline check valve
CN211715112U (en) Wellhead gas injection device
CN204064041U (en) A kind of new type heat exchanger

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant