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CN108131104B - A kind of flow-guiding type centralizer and a kind of drilling measuring equipment - Google Patents

A kind of flow-guiding type centralizer and a kind of drilling measuring equipment Download PDF

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Publication number
CN108131104B
CN108131104B CN201611088387.6A CN201611088387A CN108131104B CN 108131104 B CN108131104 B CN 108131104B CN 201611088387 A CN201611088387 A CN 201611088387A CN 108131104 B CN108131104 B CN 108131104B
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CN
China
Prior art keywords
cable
winding pole
hole
wire winding
flow
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Application number
CN201611088387.6A
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Chinese (zh)
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CN108131104A (en
Inventor
陈波
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.)
Beijing Hailan Science & Technology Development Co.,Ltd.
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HAILAN PETROLEUM TECHNOLOGY DEVELOPMENT Co Ltd
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Priority to CN201611088387.6A priority Critical patent/CN108131104B/en
Publication of CN108131104A publication Critical patent/CN108131104A/en
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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
    • E21B17/10Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1035Wear protectors; Centralising devices, e.g. stabilisers for plural rods, pipes or lines, e.g. for control lines
    • 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
    • E21B17/028Electrical or electro-magnetic connections
    • 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
    • E21B17/10Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1085Wear protectors; Blast joints; Hard facing

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

The present invention provides a kind of flow-guiding type centralizer and a kind of drilling measuring equipment, and wherein flow-guiding type centralizer includes centralizer body, two connection plugs, conducting wire and wire winding pole;Cable-through hole is provided on centralizer body;Two connection plugs are separately positioned on the both ends of cable-through hole;Two connection plugs are equipped with connecting terminal;At least one connection plug can be rotated relative to cable-through hole;Conducting wire is arranged in cable-through hole, both ends are fixedly connected with corresponding connecting terminal in two connection plugs respectively;Wire winding pole is arranged in cable-through hole;At least one connection plug is connect with wire winding pole;When two connection plugs relatively rotate, conducting wire is wrapped in wire winding pole.In actual use, conducting wire prevents the accuracy that drilling measuring equipment leaks electricity or external interference effect of signals drilling measuring equipment is tested without the side wall relative friction with cable-through hole with centralizer body play.

Description

A kind of flow-guiding type centralizer and a kind of drilling measuring equipment
Technical field
The present invention relates to drilling prospection technical field, in particular to a kind of flow-guiding type centralizer, furthermore the present invention also provides A kind of drilling measuring equipment using preceding guide formula centralizer.
Background technique
In drilling process, for parameters such as measurement well tracks, drilling measuring equipment is installed in the casing of drill bit.With Boring measuring device includes multiple functional modules such as information acquisition module, battery module.Because the casing size of drilling equipment limits, Each functional module of drilling measuring equipment is arranged in series along casing extending direction, is connected between each other by flow-guiding type centralizer It connects.
To realize the electrical connection between the different function module in drilling measuring equipment, set at the axle center of flow-guiding type centralizer Set cable-through hole.The installation of cable-through hole both ends connects the connection plug of two sides functional module, is led between two connection plugs by more Line connection.When drilling measuring equipment is installed, connection plug is first fixedly connected with corresponding functional module, then fills in flow-guiding type righting In the cable-through hole of device.Therefore the conductor length in cable-through hole is slightly larger than the length for accommodating conductor area in cable-through hole.Down hole drill In the process, flow-guiding type centralizer at drill bit generate cyclic load and play;Because conducting wire in flow-guiding type centralizer compared with Long, conducting wire moves back and forth not with underdrive on flow-guiding type centralizer relative to cable-through hole side wall.Long-term reciprocal In motion process, the insulating layer of conducting wire is worn, the exposed conductor wire core of conductor wire core contacts with centralizer body and makes with brill The signal of measuring device transmits or power transmission is abnormal, cannot achieve normal measurement operation.
Summary of the invention
For solve existing flow-guiding type centralizer in use, conducting wire and cable-through hole sidewall friction in cable-through hole and cause to lead The problem of line insulating layer damages, the present invention provide a kind of new flow-guiding type centralizer;Separately the present invention also provides a kind of using aforementioned The drilling measuring equipment of flow-guiding type centralizer.
The present invention provides a kind of flow-guiding type centralizer, including centralizer body, two connection plugs, conducting wire and wire winding pole;
Cable-through hole is provided on the centralizer body;
Two connection plugs are separately positioned on the both ends of the cable-through hole;Two connection plugs are equipped with wiring Terminal;At least one described connection plug can be rotated relative to the cable-through hole;
The conducting wire is arranged in the cable-through hole, both ends respectively with the corresponding wiring in two connection plugs Terminal is fixedly connected;
The wire winding pole is arranged in the cable-through hole;At least one described connection plug is connect with the wire winding pole;
When two connection plugs relatively rotate, the conducting wire is wrapped on the wire winding pole.
Optionally, the connection plug for connecting the wire winding pole is equipped with spliced eye;The wire winding pole is inserted into the grafting In hole.
Optionally, the wire winding pole includes the body of rod and the lug boss positioned at the rod end;
The spliced eye has fitting hole section and engaging hole section;The connecting hole section is located at the end of the fitting hole section;
The boss in the fitting hole section, and can along the spliced eye extending direction relative to the fitting Hole section sliding;The lug boss and the engaging hole section are engaged by clamping, and the wire winding pole is prevented to be detached from the spliced eye.
Optionally, the lug boss is in pyramidal;Lug boss free end cross-sectional area is less than to be connect with the body of rod The cross-sectional area at end;The cross-sectional area of the lug boss free end is less than the cross-sectional area of the engaging hole section.The lug boss It is greater than the cross-sectional area for engaging hole section with the cross-sectional area of the body of rod connecting pin.
It optionally, further include guide roller;The guide roller is mounted on the wire winding pole and can be relative to the wire winding pole Rotation;There is the first cable-through hole on the guide roller;The conducting wire passes through first cable-through hole.
It optionally, further include insulating sleeve;The insulating sleeve is located in the cable-through hole;The conducting wire and the coiling Bar is arranged in the tube body of the insulating sleeve;Two connection plugs are separately positioned on the both ends of the insulating sleeve;Extremely A rare connection plug can be rotated relative to insulating sleeve.
Optionally, each connection plug includes a header body and a connector sleeve;The header body and correspondence The connector sleeve be fixedly connected;The connecting terminal is arranged in the header body;There is the second mistake on the connector sleeve String holes;The conducting wire passes through second cable-through hole and connect with the connecting terminal;The wire winding pole is connect with the connector sleeve.
The present invention also provides a kind of drilling measuring equipments, including at least two functional modules and foregoing flow-guiding type to help Positive device;Two connection plugs of the flow-guiding type centralizer are connect with the Wiring port of functional module described in two sides respectively;It is described Centralizer body is connected with the housing seal of functional module described in two sides.
Flow-guiding type centralizer provided by the invention, in the cable-through hole of flow-guiding type centralizer setting there are two connection plug and Connect the conducting wire of two connection plugs.In addition, be additionally provided with wire winding pole in cable-through hole, wire winding pole at least with a connection plug Connection;When two connection plug relative rotation, conducting wire can be taken up on wire winding pole.In actual use, conducting wire is with centralizer sheet Body together play without the side wall relative friction with cable-through hole, prevent drilling measuring equipment leak electricity or external interference effect of signals with Bore the accuracy of measuring device test.
Detailed description of the invention
To be illustrated more clearly that background technique or technical solution of the present invention, below to the prior art or specific embodiment The attached drawing of middle combined use is briefly described;It should be evident that below in conjunction with the attached drawing side of being only for of specific embodiment Just understand the embodiment of the present invention, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other drawings based on these drawings;
Fig. 1 is an embodiment flow-guiding type centralizer off working state schematic diagram;
Fig. 2 is Section A-A schematic diagram in Fig. 1;
Fig. 3 is B area enlarged drawing in Fig. 1;
Fig. 4 is an embodiment flow-guiding type centralizer working state schematic representation;
Fig. 5 is C-C schematic cross-section in Fig. 4;
Fig. 6 is D regional enlarged drawing in Fig. 4;
Wherein: 1- centralizer body, 11- cable-through hole, 2- connection plug, 21- spliced eye, 22- fitting hole section, 23- engaging Hole section, 24- header body, 25- connector sleeve, 3- conducting wire, 4- wire winding pole, the 41- body of rod, 42- lug boss, 5- guide roller, 6- insulation Casing.
Specific embodiment
The present invention provides a kind of new flow-guiding type centralizer, guarantees that conducting wire therein can be with centralizer using winding method Ontology is of reciprocating vibration together, reduces a possibility that wire insulation is worn.
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention Range.
Fig. 1 is an embodiment flow-guiding type centralizer off working state schematic diagram, and Fig. 2 is Section A-A schematic diagram in Fig. 1, Fig. 3 It is B area enlarged drawing in Fig. 1, Fig. 4 is an embodiment flow-guiding type centralizer working state schematic representation, and Fig. 5 is the section C-C in Fig. 4 Schematic diagram, Fig. 6 are D regional enlarged drawings in Fig. 3.
Such as Fig. 1-Fig. 6, in an embodiment of the present invention, flow-guiding type centralizer includes 1, two connection plug of centralizer body 2 and several conducting wires 3.Wherein: the center of centralizer body 1 is equipped with cable-through hole 11.Terminals are equipped in two connection plugs 2 Son, two connection plugs 2 are separately mounted to the both ends of cable-through hole 11, for connecting the Wiring port of two sides functional module;Two Connection plug 2 can be rotated relative to cable-through hole 11.Conducting wire 3 be arranged in cable-through hole 11, both ends respectively with two connection plugs 2 In corresponding connecting terminal be fixedly connected.Terminals after 2 grafting of two sides functional module and connection plug, in connection plug 2 Son and the conductive component of functional module contact, and realize the electrical connection of adjacent function modules.
In addition, flow-guiding type centralizer further includes wire winding pole 4, the both ends of wire winding pole 4 are connect with two connection plugs 2 respectively. Two connection plugs 2 are such as relatively rotated, due to the barrier action of wire winding pole 4, conducting wire 3 is wrapped on wire winding pole 4;Conducting wire 3 is wound Number reaches setting number, and conducting wire 3, which will take up, to be fixed on wire winding pole 4.
When in underground work using the functional module of flow-guiding type centralizer above-mentioned connection drilling measuring equipment, flow-guiding type Two connection plugs 2 of centralizer are fixedly connected with the functional module at both ends respectively, and conducting wire 3, which takes up, to be fixed on wire winding pole 4.When Flow-guiding type centralizer with bit operation when periodical play, conducting wire 3 and wire winding pole 4 together with flow-guiding type centralizer periodically Play.It slides, can avoid exhausted relative to 11 sidewall friction of cable-through hole when due to conducting wire 3 being not as used in the prior art Edge layer abrasion and the problem of exposed conductor wire core, prevent that drilling measuring equipment from leaking electricity or external interference effect of signals measurement while drilling is set The accuracy of standby test.
Preferably, when conducting wire 3 takes up wire winding pole 4, the both ends of wire winding pole 4 preferably push against two connection plugs 2, so that around Line bar is directly moved with connection plug, reduces the relative friction between wire winding pole 4 and conducting wire.Fig. 2 and Fig. 4 show this implementation respectively Schematic diagram when conducting wire 3 is loosely arranged in cable-through hole 11 and takes up wire winding pole 4 in example.It can be seen that from two figures, for convenience of each A conducting wire 3 winds wire winding pole 4, and the intermediate region of cable-through hole 11, i.e. wire winding pole 4 and Wiring port connection position is arranged in wire winding pole 4 Set the axis centre compared to the link position of conducting wire 3 and Wiring port closer to cable-through hole.Fig. 3 and Fig. 6 show this hair The connection type of wire winding pole and connection plug in a bright embodiment.Such as Fig. 3 and Fig. 6, spliced eye 21 is equipped in connection plug 2, around Line bar 4 is inserted into spliced eye 21, realizes the connection with connection plug 2.To guarantee that two connection plugs 2 can relatively rotate, coiling Bar 4 can be rotated relative to spliced eye 21 and be slided relative to 21 axis direction of spliced eye.
Such as Fig. 3 and Fig. 6, to be easy to use positioning, wire winding pole and spliced eye are non-dismountable connection.It is specific:
Wire winding pole 4 includes the body of rod 41 and lug boss 42, and lug boss 42 is arranged in the end of the body of rod 41, and solid with the body of rod 41 Fixed connection;Spliced eye 21 includes fitting hole section 22 and engaging hole section 23, and engaging hole section 23 is located at the end of fitting hole section 22;The body of rod 41 pass through engaging hole section 23, and lug boss 42 is located in fitting hole section 22 and relative to 22 telescopic slide of fitting hole section.Lug boss 42 It is engaged by clamping with hole section 23 is engaged, realizes the non-dismountable connection of wire winding pole 4 and connection plug 2.
Such as Fig. 3 and Fig. 6, the end face that lug boss 42 is connect with the body of rod 41 is equipped with step positioning surface, the register hole of spliced eye 21 Section 22 and engaging 23 transition position of hole section also are provided with step positioning surface;When lug boss slides at engaging hole section 23, two steps Positioning surface clamping engagement, the non-dismountable connection for realizing wire winding pole 4 and connection plug 2.
Further, lug boss 42 is preferably pyramidal, and the cross-sectional area of 42 free end of lug boss is less than lug boss 42 with the cross-sectional area of 41 connecting pin of the body of rod;In addition the cross-sectional area of the free end of lug boss 42 is less than the transversal of engaging hole section 23 Area.In this way, the body of rod 41 and lug boss 42 can be made into one;When connecting wire winding pole 4 and connection plug 2, directly by lug boss 42 It fills in from engaging hole section 23 to fitting hole section 22.It is contemplated that when lug boss 42 is by engaging hole section 23, due to lug boss side The wedge-type expansion in face acts on, and deformation occurs for engaging hole section 23;And when lug boss enters fitting hole section 22, engaging hole section 23 is extensive Restoring type, the bottom surface clamping engagement with lug boss.
It should be noted that it is only a kind of preferred embodiment of the invention that 4 both ends of wire winding pole are connect with two connection plugs 2 respectively, In other embodiments, wire winding pole 4 is only connect with one of wiring rubbing head 2, can also realize aforementioned take up and positioning lead 3 Function.In addition, the above is only introducing 4 structure of wire winding pole in a specific embodiment of the invention and 2 structure of connection plug, at it In his embodiment, the structure and matching relationship of wire winding pole 4 and connection plug 2 are not limited to the above content statement;In other implementations In example, wire winding pole can be also fixedly connected with one of connection plug 2, and be flexibly connected with another connection plug.
Such as Fig. 1 and Fig. 3, flow-guiding type centralizer may also include guide roller 5, and guide roller 5 is mounted on wire winding pole 4, can be opposite It is rotated in wire winding pole 4.There is the first cable-through hole 11, conducting wire 3 passes through the first cable-through hole 11 on guide roller 5.In practical application, conducting wire Wheel 5 has the effect that (1) is straight convenient for the thread in 3 installation process of conducting wire, prevents conducting wire 3 from mutually winding;(2) adaptively phase Wire winding pole 4 is rotated, prevents conducting wire 3 when winding on wire winding pole 4, damage is twisted in regional area transition, guarantees that conducting wire 3 winds matter Amount.Such as Fig. 1 and Fig. 3, there are three guide rollers 5 for the flow-guiding type centralizer setting in the present embodiment, and the distance of three guide rollers 5 is substantially It is identical.
Further, it may also include insulating sleeve 6 in flow-guiding type centralizer of the invention;Insulating sleeve 6 is arranged in mistake In string holes 11;Two connection plugs 2 are separately positioned on the both ends of insulating sleeve 6, at least one connection plug 2 can be relative to insulation Casing 6 rotates;Conducting wire 3 and wire winding pole 4 are arranged in the tube body of limit casing 6 absolutely.In practical application, to guarantee structural strength and resistance to Frictional property, centralizer body 1 mostly use metal material to be made, and the problem of insulating layer damage such as occurs in conducting wire 3, may and centralizer Ontology 1 is connected and electric leakage or generation signal interference;And insulating sleeve 6 is set between conducting wire 3 and centralizer body 1, it can be more preferable Ground guarantees insulation effect, improves the safety that equipment uses.Certainly, in other embodiments, insulating sleeve 6 can also be not provided with.
In present invention specific implementation, for convenient for connecting wire 3, connection plug 2 may be configured as separate structure.Specifically, Connection plug 2 can be divided into header body 24 and connector sleeve 25;Connecting terminal is arranged in header body 24;The setting of connector sleeve 25 the Two cable-through holes 11, conducting wire 3 passes through be fixedly connected with connecting terminal after the second cable-through hole 11 after, then by header body 24 and connector sleeve 25 are fixed together.In addition, wire winding pole 4 and connector sleeve 25 connect.In this implementation, 10 are respectively provided on each connection plug 2 A connecting terminal, the interior setting of flow-guiding type centralizer 10 is transmitted for signal or the conducting wires 3 of electric energy transmission.
In addition to providing flow-guiding type centralizer above-mentioned, the present invention also provides a kind of drilling measuring equipments.Drilling measuring equipment Including at least two functional modules and flow-guiding type centralizer above-mentioned.Wherein two connection plugs 2 difference of flow-guiding type centralizer It is connect with the Wiring port of the functional module of two sides, centralizer body 1 is connect with the housing seal of two sides functional module.
Above in the embodiment of the present invention flow-guiding type centralizer and drilling measuring equipment be described in detail.This part Using specific embodiment, principle and implementation of the present invention are described, and the explanation of above example is only intended to help Understand core of the invention thought, without departing from the principles of the present invention, those of ordinary skill in the art are not making Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.

Claims (8)

1. a kind of flow-guiding type centralizer, it is characterised in that: including centralizer body (1), two connection plugs (2), conducting wire (3) and Wire winding pole (4);
Cable-through hole (11) are provided on the centralizer body (1);
Two connection plugs (2) are separately positioned on the both ends of the cable-through hole (11);Two connection plugs (2) are all provided with There is connecting terminal;At least one described connection plug (2) can rotate relative to the cable-through hole (11);
The conducting wire (3) setting in the cable-through hole (11), both ends respectively with corresponding institute in two connection plugs (2) Connecting terminal is stated to be fixedly connected;
Wire winding pole (4) setting is in the cable-through hole (11);At least one described connection plug (2) and the wire winding pole (4) it connects;
When two connection plugs (2) relatively rotate, the conducting wire (3) is wrapped on the wire winding pole (4).
2. flow-guiding type centralizer according to claim 1, it is characterised in that: connect the wiring of the wire winding pole (4) Plug (2) is equipped with spliced eye (21);The wire winding pole (4) is inserted into the spliced eye (21).
3. flow-guiding type centralizer according to claim 2, it is characterised in that: the wire winding pole (4) include the body of rod (41) and Lug boss (42) positioned at the body of rod (41) end;
The spliced eye (21) has fitting hole section (22) and engaging hole section (23);The engaging hole section (23) is located at the fitting The end of hole section (22);
The lug boss (42) is located in the fitting hole section (22), and can along the spliced eye (21) extending direction relative to Fitting hole section (22) sliding;The lug boss (42) and the engaging hole section (23) are engaged by clamping, and prevent the wire winding pole (4) it is detached from the spliced eye (21).
4. flow-guiding type centralizer according to claim 3, it is characterised in that: the lug boss (42) is in pyramidal;It is described Lug boss (42) free end cross-sectional area is less than the cross-sectional area with the body of rod (41) connecting pin;The lug boss (42) is freely The cross-sectional area at end is less than the cross-sectional area of engaging hole section (23);The lug boss (42) and the body of rod (41) connecting pin Cross-sectional area be greater than it is described engaging hole section (23) cross-sectional area.
5. flow-guiding type centralizer according to claim 1-4, it is characterised in that: further include guide roller (5);It is described Guide roller (5) is mounted on the wire winding pole (4) and can rotate relative to the wire winding pole (4);Have on the guide roller (5) There are the first cable-through hole (11);The conducting wire (3) passes through first cable-through hole (11).
6. flow-guiding type centralizer according to claim 1-4, it is characterised in that: further include insulating sleeve (6);Institute Insulating sleeve (6) is stated to be located in the cable-through hole (11);The conducting wire (3) and the wire winding pole (4) are arranged in the insulation sleeve In the tube body for managing (6);Two connection plugs (2) are separately positioned on the both ends of the insulating sleeve (6);At least one institute Stating connection plug (2) can rotate relative to insulating sleeve (6).
7. flow-guiding type centralizer according to claim 1-4, it is characterised in that: each connection plug (2) is wrapped Include a header body (24) and a connector sleeve (25);The header body (24) and the corresponding connector sleeve (25) are fixed Connection;The connecting terminal is arranged on the header body (24);There are the second cable-through hole (11) on the connector sleeve (25); The conducting wire (3) passes through second cable-through hole (11) and connect with the connecting terminal;The wire winding pole (4) and the connector sleeve (25) it connects.
8. a kind of drilling measuring equipment, it is characterised in that: including at least two functional modules and such as any one of claim 1-7 institute The flow-guiding type centralizer stated;Two connection plugs (2) of the flow-guiding type centralizer connect with functional module described in two sides respectively The connection of line end mouth;The centralizer body (1) connects with the housing seal of functional module described in two sides.
CN201611088387.6A 2016-11-30 2016-11-30 A kind of flow-guiding type centralizer and a kind of drilling measuring equipment Active CN108131104B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611088387.6A CN108131104B (en) 2016-11-30 2016-11-30 A kind of flow-guiding type centralizer and a kind of drilling measuring equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611088387.6A CN108131104B (en) 2016-11-30 2016-11-30 A kind of flow-guiding type centralizer and a kind of drilling measuring equipment

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CN108131104A CN108131104A (en) 2018-06-08
CN108131104B true CN108131104B (en) 2019-10-08

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Effective date of registration: 20200609

Address after: 100143 No. 1, 2 unit, 322 floor, 3 District, Yuquanlu Road, Haidian District, Beijing

Patentee after: Beijing Hailan Science & Technology Development Co.,Ltd.

Address before: 100039, No. 3, West well road, Badachu hi tech park, Beijing, Shijingshan District

Patentee before: HAILAN PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd.