CN207739951U - A kind of High-strength deepwater landing tool joint - Google Patents

A kind of High-strength deepwater landing tool joint Download PDF

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Publication number
CN207739951U
CN207739951U CN201820069948.6U CN201820069948U CN207739951U CN 207739951 U CN207739951 U CN 207739951U CN 201820069948 U CN201820069948 U CN 201820069948U CN 207739951 U CN207739951 U CN 207739951U
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CN
China
Prior art keywords
reinforcing rib
female connector
pin end
gripping section
main pipe
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Application number
CN201820069948.6U
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Chinese (zh)
Inventor
孙小林
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Oceanic Rise Oil Drilling Tools (wuxi) Co Ltd
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Oceanic Rise Oil Drilling Tools (wuxi) Co Ltd
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Priority to CN201820069948.6U priority Critical patent/CN207739951U/en
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Abstract

The utility model is related to a kind of High-strength deepwater landing tool joints, including pin end, female connector, pin end, hollow main pipe is equipped between female connector, pin end, the outer diameter of female connector is equal, pin end, the outer diameter of female connector is more than the outer diameter of adjacent supervisor's body portion to form step structure, middle part on the left and right directions of main pipe is slips gripping section, slips gripping section is more than the outer diameter for being located at part at left and right sides of slips gripping section of main pipe for the outer diameter of cylindrical section and slips gripping section, the part of main pipe being located at left and right sides of slips gripping section is denoted as left strengthening segment, right strengthening segment, the periphery of left strengthening segment is equipped with left reinforcing rib, the periphery of right strengthening segment is equipped with right reinforcing rib, left reinforcing rib left end is slope, right reinforcing rib left end has interval with slips gripping section, right reinforcing rib right end is slope.By the way that left reinforcing rib, right reinforcing rib are arranged on main pipe, the torsional strength of main pipe and joint can be improved.

Description

A kind of High-strength deepwater landing tool joint
Technical field
The utility model is related to petroleum gas drilling-production equipment fields, and in particular to a kind of High-strength deepwater landing drilling rod connecting Head.
Background technology
Currently, the drilling rod used during oil and gas well drilling is mainly by drill pipe body, female adapter and external screw thread Connector three parts form, and female adapter and male connection are also referred to as pin end, female connector.The manufacturing method of drilling rod, it is a kind of It is monoblock type, one is welded types.The manufacturing method of welded type drilling rod is to process drill pipe body, female adapter, outer respectively Then nipple connects drill pipe body, female adapter, male connection by welding.Welded type Drilling rod is applied than wide.Since the drill pipe body of welded type drilling rod differs larger with the size of tool joint, in order to ensure to weld The performance of socket part position needs to carry out upset thickening processing to drill pipe body both ends, and the variation of structure size leads to drill pipe body end The inner conical surface of the upset structure thicker in portion is that drill pipe body upper stress concentrates position the most serious with tube body boundary position.In drilling rod During use, it is easily broken off failure, insufficient strength.
Utility model content
The purpose of this utility model is to provide a kind of High-strength deepwater landing tool joint, to solve existing for existing drilling rod The technical issues of being easy failure.
To achieve the above object, the utility model High-strength deepwater landing tool joint adopts the following technical scheme that:Including Pin end, female connector, are equipped with hollow main pipe between pin end, female connector, pin end, female connector are arranged in main pipe or so Both ends, the pin end, the outer diameter of female connector are equal, the pin end, female connector outer diameter be more than adjacent supervisor's body portion Outer diameter to form step structure, the thread segment right radical portion of the pin end is equipped with the first main circular bead surface, the thread segment of female connector Left root is equipped with the second main circular bead surface with the first main shoulder sealing surface cooperation, and the left root of thread segment of the pin end is equipped with the The thread segment right radical portion of one secondary circular bead surface, female connector is equipped with the second secondary circular bead surface, the middle part on the left and right directions of the main pipe For slips gripping section, the slips that is located at that the slips gripping section is more than main pipe for the outer diameter of cylindrical section and slips gripping section is clamped The outer diameter of section left and right sides part, the part of the main pipe being located at left and right sides of slips gripping section are denoted as left strengthening segment, the right side The periphery of strengthening segment, left strengthening segment is equipped with several left reinforcing ribs, and the periphery of right strengthening segment is equipped with several right reinforcing ribs, Left reinforcing rib, right reinforcing rib length be that in left-right direction, left reinforcing rib right end and slips gripping section have interval to be hung to be formed Card slot, left reinforcing rib left end are slope, and it is slope that right reinforcing rib left end has interval, right reinforcing rib right end with slips gripping section.
Further, it is arranged with diaphragm seal on the pin end.
Further, gasket is equipped between the described first main circular bead surface, the second main circular bead surface, gasket is ring-type.
Further, the pin end, female connector thread segment taper be 1:7.
Further, the hollow space of the main pipe be equipped with the transition conical surface, be located at pin end side the transition conical surface with The slopes angle of left reinforcing rib is consistent, is located at the slopes angle one of the transition conical surface and right reinforcing rib of female connector side It causes.
The beneficial effects of the utility model:Left strengthening segment, right strengthening segment of the tool joint of the utility model in main pipe On be respectively set plus left reinforcing rib, right reinforcing rib, left reinforcing rib, right reinforcing rib along tube body periphery be arranged and prolong in left-right direction It stretches, the torsional strength of main pipe and joint can be improved.Left reinforcing rib, right reinforcing rib end be equipped with slope, reduction is answered The problems in power collection;It goes into the well in addition, nor affecting on the normal of drilling rod.Individual slips gripping section is set, slips gripping section it is outer Diameter is more than the outer diameter of its both sides supervisor's body portion, and setting is spaced apart with reinforcing rib, its intensity can be improved, and improves anti-slips and squeezes and ruins Ability.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model High-strength deepwater landing tool joint;
Fig. 2 is pin end and female connector cooperation schematic diagram in Fig. 1.
Corresponding title is respectively marked in figure:1, pin end, 2, main pipe, 3, left reinforcing rib, 4, right reinforcing rib, 5, mother connects Head, the 11, first main circular bead surface, the 12, first secondary circular bead surface, 21, the transition conical surface, 22, slips gripping section, 31, slope, 51, second Main circular bead surface, the 52, second secondary circular bead surface.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, the every other embodiment that those of ordinary skill in the art are obtained all belongs to In the range of the utility model protection.
The embodiment of the utility model High-strength deepwater landing tool joint:As Figure 1-Figure 2, deep water landing drilling rod connecting Head includes the hollow main pipe 2 between pin end 1, female connector 5 and pin end 1, female connector 5, pin end 1, female connector 5 Welding is arranged in 2 left and right ends of main pipe, and pin end 1, the outer diameter of female connector 5 are equal, and outer diameter here refers to non-threaded section Diameter.Screw thread preferentially uses trapezoidal thread on thread segment.Main pipe and pin and box sub are using API standard material.Public access First 1, the outer diameter of female connector 5 is more than the outer diameter of adjacent 2 part of main pipe to form step structure.The hollow space of main pipe 2 Equipped with the transition portion between the transition conical surface 21 namely pin end 1 and main pipe 2, female connector 5 and main pipe 2.Main pipe's 2 Outer diameter is 200mm.
Middle part on the left and right directions of main pipe 2 is slips gripping section 22, and slips gripping section 22 is cylindrical section and slips presss from both sides The outer diameter for holding section 22 is more than the outer diameter namely slips gripping section pipe positioned at 22 left and right sides part of slips gripping section of main pipe 2 Wall is thicker.The part for being located at 22 left and right sides of slips gripping section of main pipe 2 is denoted as left strengthening segment, right strengthening segment.Left reinforcement The periphery of section is equipped with several left reinforcing ribs 3, and the periphery of right strengthening segment is equipped with several right reinforcing ribs 4, left reinforcing rib 3, The length of right reinforcing rib 4 is in left-right direction.3 right end of left reinforcing rib has interval to form elevator groove with slips gripping section 22, 3 left end of left reinforcing rib is slope 31, and it is also oblique that 4 left end of right reinforcing rib has interval, 4 right end of right reinforcing rib with slips gripping section 22 Slope.The transition conical surface 21 positioned at 1 side of pin end is consistent with the slopes angle of left reinforcing rib 3, is located at 5 side of female connector The transition conical surface is consistent with the slopes angle of right reinforcing rib 4.Reinforcing rib is set, the antitorque of main pipe and joint can be improved Intensity, and the end of left reinforcing rib 3, right reinforcing rib 4 is equipped with slope, the problem of reducing stress concentration;In addition, nor affecting on The normal of drilling rod is gone into the well.
The thread segment right radical portion of pin end 1 is equipped with the first main circular bead surface 11, and the left root of thread segment of female connector 5 is equipped with and the The left root of thread segment of second main circular bead surface 51 of one main shoulder sealing surface cooperation, pin end 1 is equipped with the first secondary circular bead surface 12, female The thread segment right radical portion of connector 5 is equipped with the second secondary circular bead surface 52.It is equipped between first main circular bead surface 11, the second main circular bead surface 51 close Packing, gasket are ring-type, and gasket is close to the first main circular bead surface 11.The structure of dual stage shoulder can withstand up to the interior of 50MPa Pressure.Pin end 1, female connector 5 thread segment taper be 1:7, binding force is strong, and torsional property improves 30% or more.Further, It is arranged with diaphragm seal on pin end, diaphragm seal is when screw-thread fit, to pass through crush seal film, Ke Yiti than relatively thin raw material band High sealing effect.
The tool joint of the utility model can well solve existing drilling rod torsional strength it is rudimentary bear internal pressure capability deficiency The problem of, there is preferable application prospect.

Claims (5)

1. High-strength deepwater landing tool joint, it is characterised in that:Including pin end, female connector, set between pin end, female connector There are hollow main pipe, pin end, female connector to be arranged in main pipe left and right ends, the pin end, the outer diameter of female connector are equal, The pin end, female connector outer diameter be more than adjacent supervisor's body portion outer diameter to form step structure, the pin end Thread segment right radical portion is equipped with the first main circular bead surface, and the left root of thread segment of female connector is equipped with and the first main shoulder sealing surface cooperation The left root of thread segment of second main circular bead surface, the pin end is equipped with the first secondary circular bead surface, and the thread segment right radical portion of female connector is set It is slips gripping section to have the second secondary circular bead surface, the middle part on the left and right directions of the main pipe, and the slips gripping section is cylinder The outer diameter of section and slips gripping section is more than the outer diameter for being located at part at left and right sides of slips gripping section of main pipe, the main pipe's Part at left and right sides of slips gripping section is denoted as left strengthening segment, right strengthening segment, and the periphery of left strengthening segment is equipped with several Left reinforcing rib, the periphery of right strengthening segment are equipped with several right reinforcing ribs, left reinforcing rib, right reinforcing rib length be along left and right Direction, left reinforcing rib right end have interval to form elevator groove with slips gripping section, and left reinforcing rib left end is slope, and right reinforcing rib is left It is slope that there are interval, right reinforcing rib right end in end with slips gripping section.
2. High-strength deepwater landing tool joint according to claim 1, it is characterised in that:It is arranged on the pin end Diaphragm seal.
3. High-strength deepwater landing tool joint according to claim 1, it is characterised in that:The first main circular bead surface, Gasket is equipped between second main circular bead surface, gasket is ring-type.
4. High-strength deepwater landing tool joint according to claim 1, it is characterised in that:The pin end, female connector Thread segment taper be 1:7.
5. High-strength deepwater landing tool joint according to any one of claims 1 to 4, it is characterised in that:The supervisor The hollow space of body is equipped with the transition conical surface, is located at the slopes angle one of the transition conical surface and left reinforcing rib of pin end side It causes, the transition conical surface for being located at female connector side is consistent with the slopes angle of right reinforcing rib.
CN201820069948.6U 2018-01-16 2018-01-16 A kind of High-strength deepwater landing tool joint Active CN207739951U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820069948.6U CN207739951U (en) 2018-01-16 2018-01-16 A kind of High-strength deepwater landing tool joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820069948.6U CN207739951U (en) 2018-01-16 2018-01-16 A kind of High-strength deepwater landing tool joint

Publications (1)

Publication Number Publication Date
CN207739951U true CN207739951U (en) 2018-08-17

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CN (1) CN207739951U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022068374A1 (en) * 2020-09-29 2022-04-07 中煤科工集团西安研究院有限公司 Dual-connection drill rod imitating animal rib-bone structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022068374A1 (en) * 2020-09-29 2022-04-07 中煤科工集团西安研究院有限公司 Dual-connection drill rod imitating animal rib-bone structure

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