CN202117573U - Spiral heavy weight drill pipe - Google Patents

Spiral heavy weight drill pipe Download PDF

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Publication number
CN202117573U
CN202117573U CN2011201890568U CN201120189056U CN202117573U CN 202117573 U CN202117573 U CN 202117573U CN 2011201890568 U CN2011201890568 U CN 2011201890568U CN 201120189056 U CN201120189056 U CN 201120189056U CN 202117573 U CN202117573 U CN 202117573U
Authority
CN
China
Prior art keywords
drill pipe
thickening
heavy weight
sudden change
sections
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.)
Expired - Fee Related
Application number
CN2011201890568U
Other languages
Chinese (zh)
Inventor
乔惊喜
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.)
Sichuan Word-Rise Petroleum Machinery Manufacture Co Ltd
Original Assignee
Sichuan Word-Rise Petroleum Machinery Manufacture 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 Sichuan Word-Rise Petroleum Machinery Manufacture Co Ltd filed Critical Sichuan Word-Rise Petroleum Machinery Manufacture Co Ltd
Priority to CN2011201890568U priority Critical patent/CN202117573U/en
Application granted granted Critical
Publication of CN202117573U publication Critical patent/CN202117573U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a spiral heavy weight drill pipe, which is composed of a lengthening and thickening male connector, two diameter sudden change sections, two sections of tubes, lengthening middle sections with spiral grooves formed by milling and a lengthening and thickening female connector. The two sections of tubes are connected through the thickening middle sections. The other ends of the two sections of tubes are connected with the two diameter sudden change sections respectively. The other ends of the two diameter sudden change sections are connected with the male connector and the female connector respectively. Working life of the connectors at two ends of the spiral heavy weight drill pipe is long, the whole drill pipe has enough tenacity and considerable rigidity and strength, can prevent the heavy weight drill pipe from deforming spirally, and can bear large bending stress.

Description

A kind of spiral heavy weight drill pipe
Technical field
The utility model relates to a kind of instrument that is used for petroleum drilling engineering, belongs to petroleum drilling technology and instrument class.
Background technology
Heavy weight drill pipe is one of important tool in the Process of Oil Well Drilling; Length is generally at 9.1-9.6 rice, and wall thickness is between drill collar and drilling rod, generally about one inch; In BHA between drill collar and drilling rod; Its flexibility also between drill collar and drilling rod, is utilized it can avoid because the vibration of drill collar is directly conducted to drilling rod and causes the drilling rod frequent failure, and then is caused drilling failure.In the drilling process, under extruding, high speed rotation, circulation moment of torsion and the flexural stress of shaft bottom crag, two end joints are worn and torn easily, and working life is short.
The utility model content
The purpose of the utility model provides a kind of spiral heavy weight drill pipe, the long working life of its two end joint, and drilling rod integral body has enough toughness and suitable rigidity and intensity; Can prevent that heavy weight drill pipe from producing the spiral modification; And can bear bigger flexural stress, this heavy weight drill pipe need not used to promote slips and safety slip when pulling out of hole with following boring; It is easy to be easy to operate, and has saved trip-out and following brill time.
The utility model provides a kind of spiral heavy weight drill pipe, and it comprises lengthening thickening male joint, two sections diameter sudden change sections, and two sections bodys are milled with spiral fluted thickening interlude, lengthening thickening female joint; Connect through the thickening interlude between two sections bodys, be connected with two sections diameters sudden change sections respectively at the other end of two sections bodys, the other end of two sections diameter sudden change sections links to each other with female joint with male joint respectively.
Wherein, the length of male joint is 686-718mm, and external diameter is 120.7 ± 0.8mm; The length of female joint is 533-565mm, and external diameter is 120.7 ± 0.8mm; The internal diameter of drilling rod is 52.4-54mm.
Wherein, the external diameter of body is 88.9 ± 0.8mm, and the external diameter of thickening interlude is 101.6 ± 0.8mm.
Wherein, the surface of male joint and female joint is respectively equipped with wear-resisting band.
Further, wear-resisting band is the wear-resisting band of ARNCO100XT, or hard alloy layer, ferrous alloy layer.
In the utility model, the male and female joint all adopts lengthening overstriking design, when repairing, can repeat to repair repeatedly, has increased the service time of heavy weight drill pipe; And, because the design of the lengthening of two joints makes the long-pending increase of joint surface to help being provided with wear-resisting band of larger area and alloy-layer, the working life that has prolonged joint greatly; The thickening interlude plays little centralizer effect; More can adapt to the deflection that pressurized produces, more can adapt to the well bending, have only the joint at two ends to contact with the borehole wall when crooked with the thickening interlude than drill collar; It is not frayed to help anti-sticking and body; On the thickening interlude, be milled with helicla flute in addition, more can help the chip removal of mud, thereby strengthen the bending-twisting ability.
Description of drawings
Fig. 1 the utility model structural representation
Fig. 2 the utility model structural representation
Among the figure, 1-thickeies male joint, and 2, the wear-resisting band of 8-, 3,7-diameter sudden change section, 4, the 6-body, 5-thickening interlude, 9-female joint are formed.
The specific embodiment
Like Fig. 1, shown in 2, the utility model is a kind of spiral heavy weight drill pipe, and it comprises lengthening thickening male joint 1, diameter sudden change section 3, diameter sudden change section 7, body 4, body 6, is milled with spiral fluted thickening interlude 5, lengthening thickening female joint 9; Connect through thickening interlude 5 between body 4 and the body 6, the other end of body 4 and body 6 is connected with diameter sudden change section 3, diameter sudden change section 7 respectively, and diameter sudden change section 3 links to each other with female joint 9 with male joint 1 respectively with the other end of diameter sudden change section 7.Wherein, the length of male joint 1 is 686-718mm, and external diameter is 120.7 ± 0.8mm; The length of female joint 9 is 533-565mm, and external diameter is 120.7 ± 0.8mm; The internal diameter of drilling rod is 52.4-54mm; The external diameter of body 4 is 88.9 ± 0.8mm, the thickening interlude 5 external diameter be 101.6 ± 0.8mm, the thickening interlude 5 external diameter than body 4 big 12.7mm about.
Wherein, the surface of male joint 1 and female joint 9 is respectively equipped with and wear-resistingly is with 2, wear-resistingly be with 8, wear-resistingly is with 2, wear-resistingly is with 8 to be the wear-resisting band of ARNCO100XT.Wherein, the surface of male joint 1 and female joint 9 can also be provided with hard alloy layer or ferrous alloy layer.
The male and female joint 1,9 of lengthening thickening can repeatedly be repaired, reuse when the repair joint screw thread; And two joint surfaces are long-pending to be increased, and can the wear-resisting band of larger area ARNCO100XT be set at joint surface, perhaps at joint surface one deck hard alloy layer or ferrous alloy layer is set, and so just can prolong the working life of joint greatly; Thickening interlude 5 plays little centralizer effect; Can adapt to the deflection that pressurized produces, more can adapt to the well bending, have only the joint at two ends to contact with the borehole wall when crooked with the thickening interlude than drill collar; Can anti-sticking and make body not frayed; Be milled with helicla flute in addition at the thickening interlude, more can help the chip removal of mud, thereby strengthen the bending-twisting ability.This heavy weight drill pipe need not used to promote slips and safety slip when trip-out and following boring, and it is easy to be easy to operate, and has saved trip-out and following brill time.During actual the use,, can reduce the fatigue damage of oil drilling tool intermediate zone widely with the utility model spiral heavy weight drill pipe and drill collar and drilling rod combination use.

Claims (5)

1. spiral heavy weight drill pipe is characterized in that: it comprises lengthening thickening male joint (1), diameter sudden change section (3), diameter sudden change section (7), body (4), a body (6), is milled with spiral fluted thickening interlude (5), lengthening thickening female joint (9); Connect through thickening interlude (5) between body (4) and the body (6); The other end of body (4) and body (6) is connected with diameter sudden change section (3), diameter sudden change section (7) respectively, and diameter sudden change section (3) links to each other with female joint (9) with male joint (1) respectively with the other end of diameter sudden change section (7).
2. spiral heavy weight drill pipe according to claim 1 is characterized in that: the length of male joint (1) is 686-718mm, and external diameter is 120.7 ± 0.8mm; The length of female joint (9) is 533-565mm, and external diameter is 120.7 ± 0.8mm; The internal diameter of drilling rod is 52.4-54mm.
3. spiral heavy weight drill pipe according to claim 1 is characterized in that: the external diameter of body (4) is 88.9 ± 0.8mm, and the external diameter of thickening interlude (5) is 101.6 ± 0.8mm.
4. spiral heavy weight drill pipe according to claim 1 is characterized in that: the surface of male joint (1) and female joint (9) is respectively equipped with wear-resisting band (2), wear-resisting band (8).
5. spiral heavy weight drill pipe according to claim 4 is characterized in that: wear-resisting band (2), wear-resisting band (8) are the wear-resisting band of ARNCO100XT, hard alloy layer or ferrous alloy layer.
CN2011201890568U 2011-06-07 2011-06-07 Spiral heavy weight drill pipe Expired - Fee Related CN202117573U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201890568U CN202117573U (en) 2011-06-07 2011-06-07 Spiral heavy weight drill pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201890568U CN202117573U (en) 2011-06-07 2011-06-07 Spiral heavy weight drill pipe

Publications (1)

Publication Number Publication Date
CN202117573U true CN202117573U (en) 2012-01-18

Family

ID=45458646

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201890568U Expired - Fee Related CN202117573U (en) 2011-06-07 2011-06-07 Spiral heavy weight drill pipe

Country Status (1)

Country Link
CN (1) CN202117573U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103711440A (en) * 2013-12-19 2014-04-09 江苏曙光华阳钻具有限公司 Spiral type heavy weight drill pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103711440A (en) * 2013-12-19 2014-04-09 江苏曙光华阳钻具有限公司 Spiral type heavy weight drill pipe

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120118

Termination date: 20160607