CN109653689A - A kind of water conservancy diversion drilling rod - Google Patents

A kind of water conservancy diversion drilling rod Download PDF

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Publication number
CN109653689A
CN109653689A CN201910072870.2A CN201910072870A CN109653689A CN 109653689 A CN109653689 A CN 109653689A CN 201910072870 A CN201910072870 A CN 201910072870A CN 109653689 A CN109653689 A CN 109653689A
Authority
CN
China
Prior art keywords
rod
discharge channel
pressure
drilling
water conservancy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910072870.2A
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Chinese (zh)
Inventor
朱传奇
袁安营
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.)
Anhui University of Science and Technology
Original Assignee
Anhui University of Science and Technology
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 Anhui University of Science and Technology filed Critical Anhui University of Science and Technology
Priority to CN201910072870.2A priority Critical patent/CN109653689A/en
Publication of CN109653689A publication Critical patent/CN109653689A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP 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
    • E21B17/18Pipes provided with plural fluid passages

Abstract

The invention discloses a kind of water conservancy diversion drilling rods comprising the inside of the body of rod, the body of rod offers air intake passage and discharge channel along the direction that the body of rod extends, and pressure-relief valve is provided in discharge channel, the pressure relief vent matched with pressure-relief valve is offered on the body of rod.By the way that discharge channel is arranged, relief valve is set in discharge channel, actively reduce the gas density of bottom hole during drilling in time when the interior pressure that drills is more than pressure threshold, prevent gas exceeding limit, prevent and treat the accidents such as spray orifice, bit freezing, the gas density in drilling can be gradually decreased simultaneously, a large amount of gas is prevented and treated and moves suddenly, effectively guarantee the safe construction of coal bed drilling.

Description

A kind of water conservancy diversion drilling rod
Technical field
The present invention relates to coal mining technology field more particularly to a kind of water conservancy diversion drilling rods.
Background technique
The high methane under coal seam especially high stress it is soft it is projecting coal bed in drilling construction during, easily occur from The phenomenon that coal and gas are sprayed in drilling, causes greatly to threaten to the safe and efficient production of coal mine, and domestic and international existing drilling rod is equal Without the effect of active release, the interior gas that drills during drilling easily is assembled, transfinites, and cannot timely and effectively reduce in drilling Gas density, the easily accidents such as initiation spray orifice, bit freezing, cause damages to equipment and personnel.
Summary of the invention
The present invention provides a kind of water conservancy diversion drilling rod, can initiatively reduce in time during drilling the gas density of bottom hole and by The gas density in coal bed drilling is gradually reduced, guarantees the safe construction of drilling.
The present invention provides a kind of water conservancy diversion drilling rods comprising: the body of rod, what the inside of the body of rod extended along the body of rod Direction offers air intake passage and discharge channel, and pressure-relief valve is provided in the discharge channel, offered on the body of rod with The pressure relief vent that the pressure-relief valve matches.
Further, the air intake passage is to open up the round hole coaxial with the body of rod along the axis of the body of rod Body, the discharge channel include a plurality of being opened in the mutually independent sub- discharge channel of the air intake passage surrounding, each son The relief valve and the pressure relief vent are equipped in discharge channel.
Further, multiple sub- discharge channels are symmetrically arranged in the air intake passage surrounding.
Further, the body of rod is concatenated by the multiple points of bodies of rod.
Further, it is multiple it is described divide between the body of rod be connected through a screw thread.
Further, the pressure relief vent be opened in counter bored holes it is innermost it is described divide on the body of rod, the pressure relief vent be from The body of rod outer wall vertical is opened up to the hole body in the discharge channel.
Relief valve is arranged by setting discharge channel in the embodiment of the present invention in discharge channel, and when drilling, interior pressure is more than The gas density for actively reducing bottom hole during drilling when pressure threshold in time, prevents gas exceeding limit, the things such as prevention and treatment spray orifice, bit freezing Therefore while can gradually decrease drilling in gas density, prevent and treat a large amount of gas and move suddenly, effectively guarantee coal bed drilling peace Full construction.
Detailed description of the invention
Technical solution in order to illustrate the embodiments of the present invention more clearly, below will be to needed in embodiment description Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, general for this field For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of water conservancy diversion drilling rod provided in an embodiment of the present invention;
Fig. 2 is a kind of partial sectional view of water conservancy diversion drilling rod provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded Body, step, operation, the presence or addition of element, component and/or its set.
It is also understood that mesh of the term used in this description of the invention merely for the sake of description specific embodiment And be not intended to limit the present invention.As description of the invention and it is used in the attached claims, unless on Other situations are hereafter clearly indicated, otherwise " one " of singular, "one" and "the" are intended to include plural form.
It is a kind of module diagram for water conservancy diversion drilling rod that the embodiment of the present invention one provides comprising the body of rod 1, bar referring to Fig. 1 The inside of body 1 offers air intake passage 2 and discharge channel 3 along the direction that the body of rod 1 extends, and is provided with and unloads in discharge channel 3 Pressure valve 4 offers the pressure relief vent 5 matched with pressure-relief valve 4 on the body of rod 1.
Specifically, during drilling, compressed air drives the body of rod 1 to rotate by 2 access aperture bottom of air intake passage, motor, bores The broken coal dust of head forms coal stream with bit, flows to outside hole under Action of Wind pressure along hole wall, the gas in drilling passes through Pressure relief vent 5 flows into discharge channel 3, and when gas pressure exceeds the threshold value of pressure-relief valve 4, pressure-relief valve is opened, and gas is logical by release Road 3 is easily discharged out of the hole.When the interior gas pressure that drills is larger, it is logical release can be adjusted by the drilling biggish drilling rod of pressure-relief valve threshold value Gas Flow in road 3, gradually release prevent a large amount of gas from moving suddenly and damage to equipment and personnel, thoroughly eliminate spray Hole hidden danger.In the concrete realization, the threshold value of pressure-relief valve 4 a variety of choosings such as having 0.1MPa, 0.3MPa, 0.5MPa, 0.7MPa It selects, selection according to specific needs matches the pressure-relief valve 4 of threshold value, can effectively avoid the generation of spray orifice.
Specifically, by the way that discharge channel is arranged, relief valve is set in discharge channel, and interior pressure is more than pressure threshold when drilling The gas density for actively reducing bottom hole during drilling when value in time, prevents gas exceeding limit, prevents and treats the accidents such as spray orifice, bit freezing, together When can gradually decrease drilling in gas density, prevent and treat a large amount of gas and move suddenly, effectively guarantee coal bed drilling safety apply Work.
Referring to fig. 2, in one embodiment, air intake passage 2 is to open up the circle coaxial with the body of rod 1 along the axis of the body of rod 1 Hole body, discharge channel 3 are opened in the mutually independent sub- discharge channel 31 of 2 surrounding of air intake passage including a plurality of, and every sub- release is logical Relief valve 4 and pressure relief vent 5 are equipped in road 31.
In one embodiment, multiple sub- discharge channels 31 are symmetrically arranged in 2 surrounding of air intake passage.
Specifically, as shown in Figure 2, can for example there are two strip discharge channels 31, respectively symmetrically be located at the two of air intake passage 2 Sub- discharge channel 31 is symmetrically disposed on the surrounding of air intake passage 2 by side, the pressure in drilling can be made to discharge more uniform, improved The stability of drilling rod drilling.It in the concrete realization, can also be for example, by using four strip discharge channels 31 or more item, particular number root It is set according to actual needs.
In one embodiment, the body of rod 1 is concatenated by the multiple points of bodies of rod 11.
In one embodiment, it is connected through a screw thread between the multiple points of bodies of rod 11.
Specifically, the body of rod 1 is concatenated by the multiple points of bodies of rod 11, can be spliced according to the length specifically to drill, The flexibility ratio of scene reply is improved, dividing between the body of rod 11 to be for example connected through a screw thread.
In one embodiment, pressure relief vent 5 is opened on innermost point of body of rod 11 of counter bored holes, and pressure relief vent 5 is from the body of rod 1 Outer wall vertical is opened up to the hole body in discharge channel 3.
Specifically, pressure relief vent 5 is opened on innermost point of body of rod 11 of counter bored holes, can be effectively by the gas in drilling Discharge drilling is outer, avoids gas Second Aggregation in drilling, influences drilling effect.
In embodiment provided herein, it should be understood that disclosed content only schematically can be with It realizes by another way.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or replace It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right It is required that protection scope subject to.

Claims (6)

1. a kind of water conservancy diversion drilling rod characterized by comprising the body of rod, the direction that the inside of the body of rod extends along the body of rod Offer air intake passage and discharge channel, pressure-relief valve be provided in the discharge channel, offered on the body of rod with it is described The pressure relief vent that pressure-relief valve matches.
2. water conservancy diversion drilling rod according to claim 1, which is characterized in that the air intake passage is the axis along the body of rod Open up the round hole body coaxial with the body of rod, the discharge channel includes that a plurality of to be opened in the air intake passage surrounding mutually only Vertical sub- discharge channel is equipped with the relief valve and the pressure relief vent in each sub- discharge channel.
3. water conservancy diversion drilling rod according to claim 2, which is characterized in that multiple sub- discharge channels are symmetrically arranged in described Air intake passage surrounding.
4. water conservancy diversion drilling rod according to claim 1, which is characterized in that the body of rod is concatenated by the multiple points of bodies of rod.
5. water conservancy diversion drilling rod according to claim 4, which is characterized in that divide between the body of rod described in multiple and be connected through a screw thread.
6. water conservancy diversion drilling rod according to claim 5, which is characterized in that it is innermost that the pressure relief vent is opened in counter bored holes On the described point of body of rod, the pressure relief vent is to open up from the body of rod outer wall vertical to the hole body in the discharge channel.
CN201910072870.2A 2019-01-25 2019-01-25 A kind of water conservancy diversion drilling rod Pending CN109653689A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910072870.2A CN109653689A (en) 2019-01-25 2019-01-25 A kind of water conservancy diversion drilling rod

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910072870.2A CN109653689A (en) 2019-01-25 2019-01-25 A kind of water conservancy diversion drilling rod
PCT/CN2019/096401 WO2020151206A1 (en) 2019-01-25 2019-07-17 Flow guide drill pipe

Publications (1)

Publication Number Publication Date
CN109653689A true CN109653689A (en) 2019-04-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910072870.2A Pending CN109653689A (en) 2019-01-25 2019-01-25 A kind of water conservancy diversion drilling rod

Country Status (2)

Country Link
CN (1) CN109653689A (en)
WO (1) WO2020151206A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020151208A1 (en) * 2019-01-25 2020-07-30 安徽理工大学 Pressure-relief anti-outburst drilling machine
WO2020151206A1 (en) * 2019-01-25 2020-07-30 安徽理工大学 Flow guide drill pipe

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101446178A (en) * 2008-11-13 2009-06-03 煤炭科学研究总院西安研究院 Wind pressure air drilling equipment in downhole soft outbursting coal bed and process matched therewith
CN202017459U (en) * 2011-04-18 2011-10-26 崔钢明 Drill rod with double powder discharging channels
CN204782970U (en) * 2015-07-15 2015-11-18 河南理工大学 Low permeability coal seam water conservancy slot system
CN105485387A (en) * 2016-01-05 2016-04-13 淮南市矿用电子技术研究所 Classification guide pressure relief valve and installation and application method thereof

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US9115549B2 (en) * 2012-06-28 2015-08-25 Team Oil Tools, L.P. Method and apparatus for injecting gas into a reservoir
CN103556940B (en) * 2013-11-15 2015-11-18 河南理工大学 Binary channels porous turbulent flow release drilling tool and construction method thereof is crept into for cherry coal rock
CN108505955B (en) * 2018-05-21 2020-04-07 河南理工大学 Hole-protecting pressure-releasing internal-deslagging drill rod
CN108442890B (en) * 2018-05-21 2020-04-07 河南理工大学 Sediment drilling rod is arranged in release of axial recess pilot hole
CN109653689A (en) * 2019-01-25 2019-04-19 安徽理工大学 A kind of water conservancy diversion drilling rod
CN109611072A (en) * 2019-01-25 2019-04-12 安徽理工大学 A kind of pressure-relief outburst-prevention drilling machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101446178A (en) * 2008-11-13 2009-06-03 煤炭科学研究总院西安研究院 Wind pressure air drilling equipment in downhole soft outbursting coal bed and process matched therewith
CN202017459U (en) * 2011-04-18 2011-10-26 崔钢明 Drill rod with double powder discharging channels
CN204782970U (en) * 2015-07-15 2015-11-18 河南理工大学 Low permeability coal seam water conservancy slot system
CN105485387A (en) * 2016-01-05 2016-04-13 淮南市矿用电子技术研究所 Classification guide pressure relief valve and installation and application method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020151208A1 (en) * 2019-01-25 2020-07-30 安徽理工大学 Pressure-relief anti-outburst drilling machine
WO2020151206A1 (en) * 2019-01-25 2020-07-30 安徽理工大学 Flow guide drill pipe

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