WO2019079945A1 - 石油柔性钻杆 - Google Patents

石油柔性钻杆

Info

Publication number
WO2019079945A1
WO2019079945A1 PCT/CN2017/107357 CN2017107357W WO2019079945A1 WO 2019079945 A1 WO2019079945 A1 WO 2019079945A1 CN 2017107357 W CN2017107357 W CN 2017107357W WO 2019079945 A1 WO2019079945 A1 WO 2019079945A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting bolt
drill pipe
disposed
buffer spring
flange
Prior art date
Application number
PCT/CN2017/107357
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
花金年
Original Assignee
盐城市锦瑞石油机械有限公司
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 盐城市锦瑞石油机械有限公司 filed Critical 盐城市锦瑞石油机械有限公司
Priority to PCT/CN2017/107357 priority Critical patent/WO2019079945A1/zh
Priority to JP2018600141U priority patent/JP3228881U/ja
Publication of WO2019079945A1 publication Critical patent/WO2019079945A1/zh

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables

Definitions

  • the invention relates to a petroleum machine, in particular to a petroleum flexible drill pipe.
  • Petroleum resources are a kind of non-renewable resources.
  • oilfield drilling and workover operations are gradually extended to deeper and more complex geology, and more and more inclined wells, horizontal wells and measure wells are here.
  • people are increasingly demanding oil drill pipes.
  • the oil drill pipe currently used encounters complex and hard geology during the drilling process, it can only continuously drill forward, can not disperse the torque, has no buffering effect, easily causes the drill pipe to be damaged or even broken, and the drill pipe has a short service life. Can not meet people's use requirements.
  • the technical problem to be solved by the present invention is to provide a petroleum flexible drill pipe with good cushioning effect.
  • a petroleum flexible drill pipe comprising: an upper drill pipe and a lower drill pipe, and an upper connecting flange is disposed at a lower end of the upper drill pipe, and the lower drill pipe is disposed at the lower end of the upper drill pipe a lower connecting flange is disposed at the upper end, a buffer gap is disposed between the upper connecting flange and the lower connecting flange, and a plurality of upper hemispherical slots are evenly disposed at a lower end of the upper connecting flange, An upper connecting bolt hole communicating with the upper semi-spherical groove is disposed in the upper connecting flange of the upper end of the semi-spherical groove, and a lower hemisphere matching the upper semi-spherical groove is uniformly disposed at an upper end of the lower connecting flange Slot, in the a lower connecting bolt hole communicating with the lower semi-spherical groove is disposed in the lower connecting flange of the lower end of
  • One end of the second upper buffer spring is opposite to the upper connecting flange, and the other end of the second upper buffer spring is opposite to the upper connecting bolt, and an upper cushion is disposed on the inner wall of the upper connecting bolt hole.
  • a lower connecting bolt is disposed in a lower connecting bolt hole at a lower end of the ball, and an upper end of the lower connecting bolt is connected to the ball, and a lower end of the lower connecting bolt protrudes from a lower connecting bolt hole and is connected to the lower connecting nut.
  • the lower two between the lower connecting nut and the lower connecting flange and the bolt are sleeved with a first lower buffer spring, one end of the first lower buffer spring is opposite to the lower connecting nut, and the first lower buffer spring is further One end is opposite to the lower connecting flange, and a lower spring slot communicating with the lower connecting bolt hole is evenly disposed in the lower connecting flange outside the lower connecting bolt, and a second lower buffer is disposed in the lower spring slot a spring, one end of the second lower buffer spring is opposite to the lower connecting flange, and the other end of the second lower buffer spring is abutted against the lower connecting bolt, and a lower cushion is disposed on an inner wall of the lower connecting bolt hole.
  • the invention has the advantages that the above-mentioned petroleum flexible drill pipe has novel structure and convenient installation, and is drilled in the drill pipe.
  • the upper drill pipe and the lower drill pipe can be slightly rotated and dispersed to dissipate the torque, effectively functioning as a buffer, and can prevent the drill pipe from being damaged, the buffering effect is good, and the drill pipe has a long service life.
  • Figure 1 is a schematic view showing the structure of a petroleum flexible drill pipe of the present invention.
  • the petroleum flexible drill pipe includes: an upper drill pipe 1 and a lower drill pipe 2, and an upper connecting flange 3 is disposed at a lower end of the upper drill pipe 1, and an upper connecting end is disposed at the upper end of the lower drill pipe 2
  • a buffer gap 5 is disposed between the upper connecting flange 3 and the lower connecting flange 4
  • a plurality of upper hemispherical grooves 6 are uniformly disposed at a lower end of the upper connecting flange 3
  • An upper connecting bolt hole 7 communicating with the upper semi-spherical groove 6 is disposed in the upper connecting flange 3 at the upper end of the upper semi-spherical groove 6, and a plurality of upper hemispheres are uniformly disposed at the upper end of the lower connecting flange 4 a lower hemispherical groove 8 in which the grooves 6 cooperate with each other, in the lower hemisphere a lower connecting bolt hole 9 communicating with the lower semi-spherical groove 8
  • the lower end of the upper connecting bolt 11 is connected to the ball 10, and the upper end of the upper connecting bolt 11 protrudes from the connecting bolt hole 7 Connected to the upper connecting nut 12, a first upper buffer spring 13 is sleeved on the upper connecting bolt 11 between the upper connecting nut 12 and the upper connecting flange 3, and one end of the first upper buffer spring 13 is The upper connecting nut 12 abuts, the other end of the first upper buffer spring 13 abuts the upper connecting flange 3, and a plurality of upper connecting bolt holes 7 are evenly disposed in the upper connecting flange 3 outside the upper connecting bolt 11 An upper spring groove 14 communicating with each other, wherein a second upper buffer spring 15 is disposed in the upper spring groove 14, and one end of the second upper buffer spring 15 abuts against the upper connecting flange 3, and the second upper buffer spring The other end of the 15 is abutted against the upper connecting bolt 11 on which the bolt hole 7 is connected An upper cushion 16 is disposed on the inner wall, and a lower connecting bolt 17 is disposed
  • the upper end of the lower connecting bolt 17 is connected to the ball 10, and the lower connecting bolt 17 is connected.
  • the lower end protrudes from the lower connecting bolt hole 9 and is connected to the lower connecting nut 18, and the first lower buffer spring 19 is sleeved on the lower two between the lower connecting nut 18 and the lower connecting flange 4 and the bolt 17 is disposed.
  • a plurality of lower spring grooves 20 communicating with the lower connecting bolt holes 9 are disposed in the inner portion, and a second lower buffer spring 21 is disposed in the lower spring groove 20, and one end and the lower connecting method of the second lower buffer spring 21
  • the blue 4 is offset, the other end of the second lower buffer spring 21 and the lower connecting bolt 17
  • a lower cushion 22 is provided on the inner wall of the lower connecting bolt hole 9.
  • the drill bit when the above-mentioned petroleum flexible drill pipe is used, when the drill bit touches the complicated and hard geology, the drill bit transmits the torque to the lower drill pipe 2, the lower drill pipe 2 transmits the torque to the lower connecting flange 4, and the lower connecting flange 4 passes the sphere. 10 transmits the torque to the upper connecting flange 3, and the upper connecting flange 3 transmits the torque to the upper drill pipe 1.
  • the upper drill pipe 1 is slightly inclined after being stressed, and the upper connecting flange on the upper drill pipe 2 when tilted 3 is rotated along the ball 10, the upper connecting flange 3 drives the upper connecting bolt hole 7 to rotate and tilt, the upper connecting bolt 11 relatively presses the second upper buffer spring 15, and the second upper buffer spring 15 contracts, and at the same time, the upper connecting The flange 3 also presses the first upper buffer spring 13, and the first upper buffer spring 13 contracts.
  • the upper connecting flange 3 can be slightly rotated in any direction on the ball 10 to disperse the torque; the lower drill pipe 2 is subjected to the torque The force can also be slightly tilted.
  • the lower connecting flange 4 on the lower drill pipe 2 rotates along the ball 10, and the lower connecting flange 4 is rotated.
  • the lower connecting bolt hole 9 is rotated and tilted, and the lower connecting bolt 17 is relatively squeezed.
  • the lower connecting flange 4 also presses the first lower buffer spring 19, and the first lower buffer spring 19 contracts.
  • the lower connecting flange 4 can slightly tilt in any direction on the ball 10. Dispersing torque; when the local quality is no longer hard, the first upper buffer spring 13, the second upper buffer spring 15, the first lower buffer spring 19 and the second lower buffer spring 21 are reset to correct the upper drill pipe 1 and the lower drill pipe 2 The drill bit can continue to drill straight down.
  • the above-mentioned petroleum flexible drill pipe has novel structure and convenient installation.
  • the upper drill pipe and the lower drill pipe can slightly rotate and tilt the dispersing torque, effectively buffering and slowing down. Prevent the drill pipe from being damaged, the buffering effect is good, and the drill pipe has a long service life.

Landscapes

  • 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)
  • Vibration Dampers (AREA)
  • Earth Drilling (AREA)
PCT/CN2017/107357 2017-10-23 2017-10-23 石油柔性钻杆 WO2019079945A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2017/107357 WO2019079945A1 (zh) 2017-10-23 2017-10-23 石油柔性钻杆
JP2018600141U JP3228881U (ja) 2017-10-23 2017-10-23 可撓性石油ドリルパイプ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/107357 WO2019079945A1 (zh) 2017-10-23 2017-10-23 石油柔性钻杆

Publications (1)

Publication Number Publication Date
WO2019079945A1 true WO2019079945A1 (zh) 2019-05-02

Family

ID=66247161

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/107357 WO2019079945A1 (zh) 2017-10-23 2017-10-23 石油柔性钻杆

Country Status (2)

Country Link
JP (1) JP3228881U (ja)
WO (1) WO2019079945A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11936064B2 (en) 2019-05-09 2024-03-19 Lg Energy Solution, Ltd. Functional separator, method for manufacturing the same, and lithium secondary battery comprising the same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512638A1 (en) * 1991-05-03 1992-11-11 Canadian Fracmaster Ltd Drive shaft assembly
CN2720083Y (zh) * 2004-08-16 2005-08-24 朱建华 可拆卸钻杆联接头
CN102425385A (zh) * 2011-12-15 2012-04-25 贵州航天天马机电科技有限公司 一种组合式潜孔锤加接式钻杆固连机构
CN204691699U (zh) * 2015-06-12 2015-10-07 李金良 一种钻杆快速连接装置
CN205063853U (zh) * 2015-10-21 2016-03-02 亚众石油科技发展（天津）有限公司 一种油井螺杆钻具球式万向轴
CN106368622A (zh) * 2016-10-28 2017-02-01 江苏省金峰石油机械制造有限公司 柔性缓冲石油钻杆
CN206429198U (zh) * 2016-11-29 2017-08-22 洛阳风动工具有限公司 一种钻机主轴和钻杆连接的防反转松脱装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512638A1 (en) * 1991-05-03 1992-11-11 Canadian Fracmaster Ltd Drive shaft assembly
CN2720083Y (zh) * 2004-08-16 2005-08-24 朱建华 可拆卸钻杆联接头
CN102425385A (zh) * 2011-12-15 2012-04-25 贵州航天天马机电科技有限公司 一种组合式潜孔锤加接式钻杆固连机构
CN204691699U (zh) * 2015-06-12 2015-10-07 李金良 一种钻杆快速连接装置
CN205063853U (zh) * 2015-10-21 2016-03-02 亚众石油科技发展（天津）有限公司 一种油井螺杆钻具球式万向轴
CN106368622A (zh) * 2016-10-28 2017-02-01 江苏省金峰石油机械制造有限公司 柔性缓冲石油钻杆
CN206429198U (zh) * 2016-11-29 2017-08-22 洛阳风动工具有限公司 一种钻机主轴和钻杆连接的防反转松脱装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11936064B2 (en) 2019-05-09 2024-03-19 Lg Energy Solution, Ltd. Functional separator, method for manufacturing the same, and lithium secondary battery comprising the same

Also Published As

Publication number Publication date
JP3228881U (ja) 2020-11-19

Similar Documents

Publication Publication Date Title
CN103527076B (zh) 一种顶驱动力水龙头
CN102383726A (zh) 空气潜孔锤对心跟管钻具
CN105569562A (zh) 一种扭矩过载保护工具
US6892828B2 (en) Nutating single cone drill bit
WO2019079945A1 (zh) 石油柔性钻杆
CN105350912A (zh) 一种降低滑动定向钻进摩阻的井下工具
US1901513A (en) Rotary jar
CN202596585U (zh) 机械式钻具蓄能保护工具
CN214616392U (zh) 一种扭矩和钻压恒定钻井装置
CN205778593U (zh) 一种抗粘扣钻具螺纹接头
CN204159921U (zh) 用于孔内加工盲孔装置
CN203796187U (zh) Dsht双台肩高抗扭钻杆接头
CN106761481A (zh) 一种自动调节钻压工具
CN112502638A (zh) 一种扭矩和钻压恒定钻井装置
CN203383730U (zh) 一种指向式旋转导向钻井导向工具
CN206346716U (zh) 一种反井钻机钻杆用单向阀短节
CN201843531U (zh) 减摩减扭工具
CN201915857U (zh) 一种减扭防磨接头
CN102747968A (zh) 潜孔钻机钻杆联轴器
CN206035431U (zh) 水平井专用高效磨鞋
CN105863530B (zh) 一种连续油管滚轮式推送装置
CN108019163A (zh) 弹性滚珠式套管和钻杆保护器
CN217462022U (zh) 一种新型水平井柔性钻井装置
CN204002611U (zh) 钻机钻杆联轴器
CN204532187U (zh) 液压剪销式完井管柱送入工具

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2018600141

Country of ref document: JP

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17930105

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17930105

Country of ref document: EP

Kind code of ref document: A1