CN108005587A - Three-channel continuous flexible composite pipe connecting joint and mounting method - Google Patents

Three-channel continuous flexible composite pipe connecting joint and mounting method Download PDF

Info

Publication number
CN108005587A
CN108005587A CN201711492310.XA CN201711492310A CN108005587A CN 108005587 A CN108005587 A CN 108005587A CN 201711492310 A CN201711492310 A CN 201711492310A CN 108005587 A CN108005587 A CN 108005587A
Authority
CN
China
Prior art keywords
ring
pressure ring
continuous flexible
triple channel
multiple tube
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.)
Granted
Application number
CN201711492310.XA
Other languages
Chinese (zh)
Other versions
CN108005587B (en
Inventor
何汝贤
王守虎
姚斌
申晓莉
王俊涛
王薇
王晓娥
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.)
Petrochina Co Ltd
Original Assignee
Petrochina 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 Petrochina Co Ltd filed Critical Petrochina Co Ltd
Priority to CN201711492310.XA priority Critical patent/CN108005587B/en
Publication of CN108005587A publication Critical patent/CN108005587A/en
Application granted granted Critical
Publication of CN108005587B publication Critical patent/CN108005587B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/021Devices for subsurface connecting or disconnecting by rotation
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/20Displacing by water
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

The invention provides a three-channel continuous flexible composite pipe connecting joint and an installation method, wherein two independent three-channel continuous flexible composite pipes are connected, three pipelines are kept independent from each other, and the purposes of pipeline connection and recycling are achieved.

Description

A kind of triple channel continuous flexible multiple tube jointing and installation method
Technical field
The invention belongs to oil extraction in oil field technical field, and in particular to a kind of triple channel continuous flexible multiple tube jointing and Installation method.
Background technology
With deepening continuously for oil field development, stratum energy all declines quickly and there is very big difference between different oil reservoirs, Seriously affect oil field and continue Efficient Development.It is the effective hand for improving recovery ratio that different oil reservoirs are carried out with water filling supplement stratum energy Section, existing frequently-used zonal injection technology mainly has the techniques such as water injection through tubing and casing, bridge-type eccentric dispensing, bridge-type concentric separated-injection, with oil field The iterative method of fine-grained management, the more or less presence survey tune of existing zonal injection technology is hampered, and rate is high, surveys and adjusts cycle length, allocates The problems such as precision is low.Problem is allocated to solve dispensing well test, carries out the dispensing technical research of triple channel continuous flexible multiple tube, leads to Cross three independent waterflood paths of the pipe and waterflooding extraction is carried out to stratum, and downhole instrument is surveyed to adjust and reform and is counted automatically for ground flow Amount, reducing the later stage is measured and tuned into this, improves individual layer dispensing qualification rate.But suitable triple channel continuous flexible is had no currently on the market The connector of multiple tube connection, therefore, is badly in need of such product and fills a hole in the market, to meet the needs of fine water filling.
The content of the invention
The problem of the purpose of the present invention is overcoming triple channel continuous flexible multiple tube not connect.
For this reason, the present invention provides a kind of triple channel continuous flexible multiple tube jointing, including connector, two section threeways The end of road continuous flexible multiple tube is inserted into connector respectively, is connected by connector;
Further include and be flexibly connected head and fastening pressure ring, fastening pressure ring is set on triple channel continuous flexible multiple tube and and connector End face pushes against contact;
Circumferentially arranged with annular projection in the middle part of the outer surface of the connector, flexible connection head thread is set on connector and it In an end face and annular projection push against and contact, clamping fastening pressure ring is shunk in another end face radially inward.
The fastening pressure ring is made of ring-shaped base and multiple strip arc panel, and multiple strip arc panel are surrounded by circle Shape, its one end are connected with ring-shaped base and circumferentially open up multiple seal groove in connected component, and other end is equipped with screw thread, Each piece of strip arc panel opens up row's screw hole along its length.
Ring-shaped base and strip the arc panel is integrally formed to form fastening pressure ring, and triple channel continuous flexible multiple tube is worn Tension solid pressure ring is stretched into connector, is flexibly connected head and is set on fastening pressure ring and connector outer surface.
Further include protection cylinder, protection cylinder is set on the outer surface of the strip arc panel of fastening pressure ring, and with strip arc Screw threads for fastening on plate.
The copper pressure ring for being sleeved on triple channel continuous flexible multiple tube is equipped between the protection cylinder and fastening pressure ring.
Sealing ring II is equipped between the flexible connection head and fastening pressure ring, protects and is equipped with sealing ring between cylinder and copper pressure ring O-ring seal is cased with I, seal groove.
A kind of installation method of triple channel continuous flexible multiple tube jointing, comprises the following steps:
Step 1, is set on threeway by protection cylinder, sealing ring I, copper pressure ring, flexible connection head, sealing ring II, fastening pressure ring successively On road continuous flexible multiple tube;
Step 2, the ring-shaped base for fastening pressure ring is alignd with the end face of triple channel continuous flexible multiple tube, and will fasten pressure ring Screw hole positions rotate to the centre position of the adjacent two passes of triple channel continuous flexible multiple tube;
Step 3, screw is put into screw hole and is fixed, it is ensured that fastening pressure ring does not occur with triple channel continuous flexible multiple tube Relative movement;
Step 4, O-ring seal is sleeved in the seal groove of fastening pressure ring, installation sealing in the seal groove in connector Circle;
Step 5, the insertion of triple channel continuous flexible multiple tube is provided with the connector of sealing ring, and triple channel is continuously soft Property compound end surfaces push against connector;
Step 6, moves to fastening pressure ring ring-shaped base positions, by being flexibly connected head successively by sealing ring II, flexible connection head It is tight with being screwed for connector;
Step 7, screw is fully screwed into triple channel continuous flexible multiple tube, it is ensured that screw top surface and fastening pressure ring surface are whole Together;
Step 8, copper pressure ring, sealing ring I, protection cylinder are moved to right successively and push against fastening pressure ring, by protecting cylinder and fastening pressure ring Be screwed it is tight;
Step 9, repeats above step, completes the connection of the other end of triple channel continuous flexible multiple tube of connector, completes complete Portion assembles.
Beneficial effects of the present invention:This triple channel continuous flexible multiple tube jointing provided by the invention and installation side Method, two single triple channel continuous flexible multiple tubes are connected, and keep three pipelines separate, realize that pipeline connects Continuous and recycling purpose, while the structure of jointing uniqueness may insure that two connected triple channel continuous flexibles are answered Close seal of tube connection, it is ensured that the sealing performance of total, and then the purpose of fine water filling.
The present invention is described in further details below with reference to attached drawing.
Brief description of the drawings
Fig. 1 is the schematic diagram of two section triple channel continuous flexible multiple tube of connector connection.
Fig. 2 is the structure diagram of triple channel continuous flexible multiple tube jointing.
Fig. 3 is the structure diagram for fastening pressure ring.
Fig. 4 is to fasten the schematic diagram that pressure ring is set on triple channel continuous flexible multiple tube.
Fig. 5 is to fasten the side view that pressure ring is set on triple channel continuous flexible multiple tube.
Description of reference numerals:1st, triple channel continuous flexible multiple tube;2nd, connector;3rd, cylinder is protected;4th, sealing ring I;5th, copper Pressure ring;6th, screw;7th, O-ring seal;8th, it is flexibly connected head;9th, sealing ring II;10th, pressure ring is fastened;10.1st, strip arc panel; 10.2, threaded hole;10.3, seal groove;10.4, ring-shaped base.
Embodiment
Embodiment 1:
Present embodiments provide a kind of triple channel continuous flexible multiple tube jointing as shown in Figure 1, including connector 2, two The end of section triple channel continuous flexible multiple tube 1 is inserted into connector 2 respectively, is connected by connector 2.
The end of two section triple channel continuous flexible multiple tubes 1 is inserted into connector 2 respectively, passes through sealing in connector 2 Circle sealing, the connector solve the connectivity problem of two triple channel continuous flexible multiple tubes, and ensure that three passages are mutually only It is vertical.
As shown in Fig. 2, triple channel continuous flexible multiple tube jointing further includes flexible connection first 8 and fastening pressure ring 10, Fastening pressure ring 10 is set on triple channel continuous flexible multiple tube 1 and is pushed against with 2 end face of connector and contacted;The connector 2 Circumferentially arranged with annular projection in the middle part of outer surface, first 8 screw thread of flexible connection is set on connector 2 and one of end face and ring Shape is raised to push against contact, and clamping fastening pressure ring 10 is shunk in another end face radially inward.
Fastening pressure ring 10 is set on triple channel continuous flexible multiple tube, is flexibly connected first 8 and is set on fastening pressure ring 10, connects On connector 2, as shown in Fig. 2, being flexibly connected the annular projection of first 8 one end abutting connector 2, other end clamping solid pressure ring 10.Triple interaction makes the triple channel continuous flexible multiple tube at 2 both ends of connector connect more fastening and close.
Embodiment 2:
On the basis of embodiment 1, as shown in Figure 3 and Figure 4, the fastening pressure ring 10 is by ring-shaped base 10.4 and multiple strip arcs Shape plate 10.1 forms, and multiple strip arc panels 10.1 are surrounded by circle, and its one end is connected with ring-shaped base 10.4 and in connected portion Divide and circumferentially open up multiple seal grooves 10.3, other end is equipped with screw thread, and each piece of strip arc panel 10.1 is along its length Open up row's screw hole 10.2.
Fastening pressure ring 10 is set on triple channel continuous flexible multiple tube, is close to by screw 6 with triple channel multiple tube, carried Lifting shaft is to stroke.
Embodiment 3:
On the basis of embodiment 2, as shown in Figure 3 and Figure 4, the ring-shaped base 10.4 and strip arc panel 10.1 are integrally formed Fastening pressure ring 10 is formed, triple channel continuous flexible multiple tube 1 is stretched into connector 2 through fastening pressure ring 10, is flexibly connected first 8 and is worn It is sleeved on 2 outer surface of fastening pressure ring 10 and connector.Protection cylinder 3 is further included, protection cylinder 3 is set on the strip arc of fastening pressure ring 10 The outer surface of plate 10.1, and with the screw threads for fastening on strip arc panel 10.1.It is equipped between the protection cylinder 3 and fastening pressure ring 10 It is sleeved on the copper pressure ring 5 of triple channel continuous flexible multiple tube 1.Described be flexibly connected between first 8 and fastening pressure ring 10 is equipped with sealing ring II 9, protect and be equipped with sealing ring I 4 between cylinder 3 and copper pressure ring 5, O-ring seal 7 is cased with seal groove 10.3.Using protecting cylinder 3rd, isolating for connector intraware and external agency is realized in the combination of sealing ring I 4, O-ring seal 7.
Embodiment 4:
A kind of installation method of triple channel continuous flexible multiple tube jointing is present embodiments provided, is comprised the following steps:
Step 1, successively will protection cylinder 3, sealing ring I 4, copper pressure ring 5, be flexibly connected first 8, sealing ring II 9, fastening pressure ring 10 is worn It is sleeved on triple channel continuous flexible multiple tube 1;
Step 2, the ring-shaped base 10.4 for fastening pressure ring 10 is alignd with the end face of triple channel continuous flexible multiple tube 1, and will be tight 10.2 position of screw hole of solid pressure ring 10 is rotated to the centre position of 1 adjacent two passes of triple channel continuous flexible multiple tube(Such as Shown in Fig. 5);
Step 3, screw 6 is put into screw hole 10.2 and is fixed(Screw can be not exclusively screwed into), it is ensured that fastening pressure ring 10 and three Passage continuous flexible multiple tube 1 does not relatively move;
Step 4, O-ring seal 7 is sleeved in the seal groove 10.3 of fastening pressure ring 10, peace in the seal groove in connector 2 Fill sealing ring;
Step 5, the insertion of triple channel continuous flexible multiple tube 1 is provided with the connector 2 of sealing ring, and triple channel is continuous 1 end face of flexible composite pipe pushes against connector 2;
Step 6, moves to 10 ring-shaped base of fastening pressure ring, 10.4 position by sealing ring II 9, flexible connection first 8, passes through activity successively Connector 8 and being screwed for connector 2 are tight;
Step 7, screw 6 is fully screwed into triple channel continuous flexible multiple tube 1, it is ensured that 6 top surface of screw and fastening 10 table of pressure ring Face is neat;
Step 8, copper pressure ring 5, sealing ring I 4, protection cylinder 3 are moved to right successively and push against fastening pressure ring 10, by protect cylinder 3 with it is tight Being screwed for solid pressure ring 10 is tight;
Step 9, repeats above step, completes the connection of the other end of triple channel continuous flexible multiple tube 1 of connector 2, completes All assemblings.
The foregoing examples are only illustrative of the present invention, does not form the limitation to protection scope of the present invention, all It is to be belonged to the same or similar design of the present invention within protection scope of the present invention.The portion that the present embodiment does not describe in detail The well-known components and common structure or conventional means of part and the structure category industry, do not describe one by one here.

Claims (7)

  1. A kind of 1. triple channel continuous flexible multiple tube jointing, it is characterised in that:Including connector(2), two section triple channels companies Continuous flexible composite pipe(1)End be inserted into connector respectively(2)It is interior, pass through connector(2)Connection;
    Further include flexible connection head(8)With fastening pressure ring(10), fasten pressure ring(10)It is set on triple channel continuous flexible multiple tube (1)Upper and and connector(2)End face pushes against contact;
    The connector(2)Outer surface in the middle part of circumferentially arranged with annular projection, be flexibly connected head(8)Screw thread is set on connector (2)Upper and one of end face is pushed against with annular projection to be contacted, and clamping fastening pressure ring is shunk in another end face radially inward (10).
  2. 2. triple channel continuous flexible multiple tube jointing as claimed in claim 1, it is characterised in that:The fastening pressure ring (10)By ring-shaped base(10.4)With multiple strip arc panels(10.1)Composition, multiple strip arc panels(10.1)It is surrounded by circle Shape, its one end and ring-shaped base(10.4)Connect and circumferentially open up multiple seal grooves in connected component(10.3), in addition one End is equipped with screw thread, each piece of strip arc panel(10.1)Row's screw hole is opened up along its length(10.2).
  3. 3. triple channel continuous flexible multiple tube jointing as claimed in claim 2, it is characterised in that:The ring-shaped base (10.4)With strip arc panel(10.1)It is integrally formed to form fastening pressure ring(10), triple channel continuous flexible multiple tube(1)Pass through Fasten pressure ring(10)Stretch into connector(2)It is interior, it is flexibly connected head(8)It is set on fastening pressure ring(10)And connector(2)Outer surface.
  4. 4. triple channel continuous flexible multiple tube jointing as claimed in claim 2, it is characterised in that:Further include protection cylinder (3), protect cylinder(3)It is set on fastening pressure ring(10)Strip arc panel(10.1)Outer surface, and with strip arc panel (10.1)On screw threads for fastening.
  5. 5. triple channel continuous flexible multiple tube jointing as claimed in claim 4, it is characterised in that:The protection cylinder(3) With fastening pressure ring(10)Between be equipped be sleeved on triple channel continuous flexible multiple tube(1)Copper pressure ring(5).
  6. 6. triple channel continuous flexible multiple tube jointing as claimed in claim 5, it is characterised in that:The flexible connection head (8)With fastening pressure ring(10)Between be equipped with sealing ring II(9), protect cylinder(3)With copper pressure ring(5)Between be equipped with sealing ring I(4), Seal groove(10.3)On be cased with O-ring seal(7).
  7. 7. a kind of installation method of triple channel continuous flexible multiple tube jointing, it is characterised in that comprise the following steps:
    Step 1, will protect cylinder successively(3), sealing ring I(4), copper pressure ring(5), be flexibly connected head(8), sealing ring II(9), it is tight Solid pressure ring(10)It is set on triple channel continuous flexible multiple tube(1)On;
    Step 2, will fasten pressure ring(10)Ring-shaped base(10.4)With triple channel continuous flexible multiple tube(1)End face alignment, And pressure ring will be fastened(10)Screw hole(10.2)Position is rotated to triple channel continuous flexible multiple tube(1)Adjacent two passes Centre position;
    Step 3, by screw(6)Put screw hole into(10.2)Inside fix, it is ensured that fastening pressure ring(10)With triple channel continuous flexible Multiple tube(1)Do not relatively move;
    Step 4, by O-ring seal(7)It is sleeved on fastening pressure ring(10)Seal groove(10.3)It is interior, connector(2)Interior sealing Installation sealing ring in ring recess;
    Step 5, by triple channel continuous flexible multiple tube(1)Insertion is provided with the connector of sealing ring(2)It is interior, and by triple channel Continuous flexible multiple tube(1)End face pushes against connector(2);
    Step 6, by sealing ring II(9), be flexibly connected head(8)Fastening pressure ring is moved to successively(10)Ring-shaped base(10.4)Position, By being flexibly connected head(8)With connector(2)Be screwed it is tight;
    Step 7, by screw(6)It is fully screwed into triple channel continuous flexible multiple tube(1)It is interior, it is ensured that screw(6)Top surface is pressed with fastening Ring(10)Surface is neat;
    Step 8, by copper pressure ring(5), sealing ring I(4), protection cylinder(3)Move to right successively and push against fastening pressure ring(10), pass through guarantor Casing(3)With fastening pressure ring(10)Be screwed it is tight;
    Step 9, repeats above step, completes connector(2)Other end of triple channel continuous flexible multiple tube(1)Connection, Complete all assemblings.
CN201711492310.XA 2017-12-30 2017-12-30 Three-channel continuous flexible composite pipe connecting joint and installation method Active CN108005587B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711492310.XA CN108005587B (en) 2017-12-30 2017-12-30 Three-channel continuous flexible composite pipe connecting joint and installation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711492310.XA CN108005587B (en) 2017-12-30 2017-12-30 Three-channel continuous flexible composite pipe connecting joint and installation method

Publications (2)

Publication Number Publication Date
CN108005587A true CN108005587A (en) 2018-05-08
CN108005587B CN108005587B (en) 2023-05-26

Family

ID=62049322

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711492310.XA Active CN108005587B (en) 2017-12-30 2017-12-30 Three-channel continuous flexible composite pipe connecting joint and installation method

Country Status (1)

Country Link
CN (1) CN108005587B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108843287A (en) * 2018-05-30 2018-11-20 大庆市华禹石油机械制造有限公司 Two to seven layers are exempted from accurate testing dispenser and technique
CN108980476A (en) * 2018-06-19 2018-12-11 门雨晴 A kind of oil field multilayer is exempted to survey accurate water filling device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001025667A1 (en) * 1999-10-01 2001-04-12 Fiberspar Corporation Composite coiled tubing end connector and pipe-to-pipe connector
CN2521470Y (en) * 2002-01-22 2002-11-20 郑成终 Aluminium-plastic composite pipe connection plastic joint
JP2008163981A (en) * 2006-12-27 2008-07-17 San-Ei Faucet Mfg Co Ltd Connecting structure of pipe and pipe joint
CN203321354U (en) * 2013-06-05 2013-12-04 中国石油天然气集团公司 Connector for coiled tube
US20150047907A1 (en) * 2013-08-17 2015-02-19 Antelope Oil Tool & Mfg. Co., Llc Wrap-around band tool connector and method of forming
CN104594819A (en) * 2015-02-02 2015-05-06 长春高祥特种管道有限公司 Connection joint for non-metal continuous oil production pipe
CN205207972U (en) * 2015-11-26 2016-05-04 中国航空工业集团公司北京航空材料研究院 Activity pipe connections head
CN107044572A (en) * 2017-06-22 2017-08-15 中国海洋大学 A kind of effective precompressed of ocean composite and flexible is from tight coupling

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001025667A1 (en) * 1999-10-01 2001-04-12 Fiberspar Corporation Composite coiled tubing end connector and pipe-to-pipe connector
CN2521470Y (en) * 2002-01-22 2002-11-20 郑成终 Aluminium-plastic composite pipe connection plastic joint
JP2008163981A (en) * 2006-12-27 2008-07-17 San-Ei Faucet Mfg Co Ltd Connecting structure of pipe and pipe joint
CN203321354U (en) * 2013-06-05 2013-12-04 中国石油天然气集团公司 Connector for coiled tube
US20150047907A1 (en) * 2013-08-17 2015-02-19 Antelope Oil Tool & Mfg. Co., Llc Wrap-around band tool connector and method of forming
CN104594819A (en) * 2015-02-02 2015-05-06 长春高祥特种管道有限公司 Connection joint for non-metal continuous oil production pipe
CN205207972U (en) * 2015-11-26 2016-05-04 中国航空工业集团公司北京航空材料研究院 Activity pipe connections head
CN107044572A (en) * 2017-06-22 2017-08-15 中国海洋大学 A kind of effective precompressed of ocean composite and flexible is from tight coupling

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王薇;王俊涛;魏向军;胡改星;申晓莉;: "井下柔性复合管注水技术及应用" *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108843287A (en) * 2018-05-30 2018-11-20 大庆市华禹石油机械制造有限公司 Two to seven layers are exempted from accurate testing dispenser and technique
CN108843287B (en) * 2018-05-30 2019-04-09 大庆市华禹石油机械制造有限公司 Two to seven layers are exempted from accurate testing dispenser and technique
CN108980476A (en) * 2018-06-19 2018-12-11 门雨晴 A kind of oil field multilayer is exempted to survey accurate water filling device
CN108980476B (en) * 2018-06-19 2019-05-03 门雨晴 A kind of oil field multilayer is exempted to survey accurate water filling device

Also Published As

Publication number Publication date
CN108005587B (en) 2023-05-26

Similar Documents

Publication Publication Date Title
CN106574490A (en) Multi-flow pipe and pipe couplings therefor for use in fracture flow hydrocarbon recovery processes
CN107143298A (en) Oil well head annular space sealing device
CN108005587A (en) Three-channel continuous flexible composite pipe connecting joint and mounting method
CN114991709B (en) Simple bridge plug for energy mining
CN107842346B (en) Sealed working barrel in composite type insertion pipe of oil-water well
CN201246554Y (en) Corrugated tube joint
CN207795075U (en) Three-channel continuous flexible composite pipe connecting joint
CN206988623U (en) A kind of deep basal pit ditch underground pipelines connect head
CN106321009B (en) Double-channel packer for concentric double-layer oil pipe separate injection
CN104179676B (en) Plunger and fracturing pump hydraulic end
CN103541681A (en) High-temperature-resistant high-pressure-resistant cross-class compression type seal component for bushes and barefoot wells
CN203452723U (en) Double-tube double-slip high-pressure water injection packer
CN209067185U (en) Sealed injection allocation device with intubation tube
CN208564540U (en) The hydraulic fracturing detecting earth stress device of isometrical design
US20230366302A1 (en) System for segmented simultaneous water injection and oil recovery through double pipes in horizontal section
CN207568546U (en) A kind of well head Anti-overflow device
CN112065293B (en) Oil pipe for tensile high-hardness oil field
CN104963645A (en) Cable-passing wellhead for intelligent separate injection of cables
CN205424245U (en) Joint connecting device
CN104453780A (en) Multistage staged fracturing sliding sleeve and fracturing string
RU2339788C1 (en) Horizontal well control equipment
CN203626791U (en) Differential pressure sliding sleeve with dual protection
CN102758643A (en) Safety valve
CN102865423A (en) Integral insulating joint for pipelines
CN111472737B (en) Layered steam injection pipe column and method for layered filling sand control well

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
GR01 Patent grant
GR01 Patent grant