CN201778715U - Universal flare-opening catcher of drilling rod - Google Patents

Universal flare-opening catcher of drilling rod Download PDF

Info

Publication number
CN201778715U
CN201778715U CN2010205344050U CN201020534405U CN201778715U CN 201778715 U CN201778715 U CN 201778715U CN 2010205344050 U CN2010205344050 U CN 2010205344050U CN 201020534405 U CN201020534405 U CN 201020534405U CN 201778715 U CN201778715 U CN 201778715U
Authority
CN
China
Prior art keywords
catching
drilling rod
correcting
catcher
flare
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
CN2010205344050U
Other languages
Chinese (zh)
Inventor
孙友宏
李强
陈宝义
王庆华
孟祥瑞
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.)
Jilin University
Original Assignee
Jilin University
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 Jilin University filed Critical Jilin University
Priority to CN2010205344050U priority Critical patent/CN201778715U/en
Application granted granted Critical
Publication of CN201778715U publication Critical patent/CN201778715U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a universal flare-opening catcher of a drilling rod, which is formed by nesting a catching arm inside a straight tube of a correcting flare tube and then connecting the catching arm through a fixing bolt. The annular surface of the flare opening of the correcting flare tube forms a constant included angle relative to the central axis of the flare opening, and a nose-shaped opening is formed on the correcting flare tube. A connecting internal thread is arranged at the upper end of the catching arm, and a catching external thread is arranged at the lower end of the catching arm inside the correcting flare tube. Compared with the prior art, the utility model increases the size range of the drilling rod to be caught, and is applied to the oil wells of different diameters. The catching tool has simple structure and strong adaptability, is easy to operate, increases the catching success rate, reduces the catching cost and increases the catching efficiency. The catching arm and the correcting flare tube can be combined randomly to meet the requirements of catching the drilling rods of different drill-hole diameters.

Description

General drilling rod horn mouth fisher
Technical field:
The utility model relates to the brill auxiliary equipment in a kind of drilling process, is exactly the fishing tool that drilling rod or drill bit fall into well specifically.
Background technology:
When geological mapping probing and other drilling well industries yesterday,, reach rig chucking device fault because rig operator misoperation or workman accidentally drop, causing drilling rod to be fallen in the boring can't take out, and the influence construction is carried out smoothly, and drilling engineering can't be continued, so, the drilling rod that drops must be salvaged out.Different situations whereabouts well drilling rod has different Refloatation methods, main fishing tool drags for fishers such as lance, die nipple, female coupling tap, slips, these salvaging utensil majorities can only be used in the salvaging under the single situation, and it is indefinite at pore size, the size of drill pipe diameter is fixing, and whether adherent the success rate of salvaging under drilling rod the reality often can't guarantee.
Summary of the invention:
The purpose of this utility model is exactly at above-mentioned the deficiencies in the prior art, and a kind of general drilling rod horn mouth fisher is provided.
The purpose of this utility model is achieved through the following technical solutions:
General drilling rod horn mouth fisher is to be sleeved in the straight tube of correcting oviduct 1 by salvaging catcher 3, connects and composes by set bolt 2.
The purpose of this utility model can also be achieved through the following technical solutions:
The ring-like loudspeaker face of the horn mouth of correcting oviduct 1 becomes 30 ° of angles with the horn mouth central axis.Correcting oviduct 1 is provided with nose type opening 4.Salvage catcher 3 upper ends and be provided with connection internal thread 6, in correcting oviduct 1, salvage catcher 3 lower ends and be provided with catcher external screw thread 5.
Beneficial effect: compare with existing drilling rod fishing operation, increased the size range of salvaging drilling rod, be suitable for the drilling well of various apertures, fishing tool is simple in structure, and is easy and simple to handle, compliance is strong, increase fishing success ratio, it is low to have reduced the salvaging cost, has improved efficient, salvaging catcher and correcting horn mouth can make up arbitrarily, is applicable to the salvaging of the drilling rod of different bore diameters.
Description of drawings:
Accompanying drawing 1: general drilling rod horn mouth fisher structure chart
Accompanying drawing 2: general drilling rod horn mouth fisher sectional view
Accompanying drawing 3: the actual salvaging figure of general drilling rod horn mouth fisher
1 correcting oviduct, 2 set bolts, 3 salvage catcher, 4 nose type openings, 5 catcher external screw threads, 6 connect internal thread.
The specific embodiment:
Be described in further detail below in conjunction with drawings and Examples:
General drilling rod horn mouth fisher is to be sleeved in the straight tube of correcting oviduct 1 by salvaging catcher 3, connects and composes by set bolt 2.The ring-like loudspeaker face of the horn mouth of correcting oviduct 1 becomes 30 ° of angles with the horn mouth central axis.Have nose type opening 4 on the correcting oviduct 1.Salvage catcher 3 upper ends and be provided with connection internal thread 6, in correcting oviduct 1, salvage catcher 3 lower ends and be provided with catcher external screw thread 5.
Embodiment 1
Select the corresponding catcher 3 of salvaging according to the used drilling rod specification of drilling well, according to the correcting horn mouth 1 of pore size selection corresponding size, be sleeved in the straight tube of correcting oviduct 1 salvaging catcher 3, be connected and fixed by interior hexagonal set bolt 2, assemble fisher, as shown in Figure 1.By connecting internal thread 6 fisher is connected with drilling rod, fisher is with in the drilling rod lower going-into-well.When fisher during down to the drilling rod top 0.5m that drops~1m; suitably slow down running speed and drill power head drilling rod is applied clockwise revolution; fisher is run into when dropping the drilling rod top; fillet on the correcting horn mouth 1 is set upright nose type opening 4 adherent drilling rod is held up into horn mouth; along with fisher slowly moves down; the drilling rod that drops slides to the fisher catcher along the horn mouth inwall; take over the closer to fisher; the horn mouth diameter is more little; the center is taken in the just approaching more salvaging in drilling rod center of dropping; the drilling rod that drops enters salvages inclined-plane in the catcher; catcher external screw thread 5 enters in the drilling rod internal thread that drops; along with the not stop and rotation of fisher, catcher external screw thread 5 just and the drilling rod that drops is stubborn closes, and can feel this moment to entail much effort before the rig revolution; illustrate the fisher band drop drilling rod the revolution; at this moment just can carry brill, the drilling rod that drops is along with fisher rises to ground, and salvaging finishes.
Embodiment 2
Select the corresponding catcher 3 of salvaging according to the used drill bit specification of drilling well, according to the correcting horn mouth 1 of pore size selection corresponding size, be sleeved in the straight tube of correcting oviduct 1 salvaging catcher 3, be connected and fixed by interior hexagonal set bolt 2, assemble fisher, as shown in Figure 1.By connecting internal thread 6 fisher is connected with drilling rod, fisher is with in the drilling rod lower going-into-well.When fisher during down to the drill bit top 0.5m that drops~1m; suitably slow down running speed and drill power head drilling rod is applied clockwise revolution; fisher is run into when dropping the drill bit top; fillet on the correcting horn mouth 1 is set upright nose type opening 4 adherent drill bit is held up into horn mouth; along with fisher slowly moves down; the drilling rod that drops slides to the fisher catcher along the horn mouth inwall; take over the closer to fisher; the horn mouth diameter is more little; the just approaching more salvaging catcher of the bit central that drops center; the drill bit that drops enters salvages inclined-plane in the catcher; catcher external screw thread 5 enters in the drilling rod internal thread that drops; along with the not stop and rotation of fisher, catcher external screw thread 5 just and the drill bit that drops is stubborn closes, and can feel this moment to entail much effort before the rig revolution; illustrate the fisher band drop drill bit the revolution; at this moment just can carry brill, the drill bit that drops is along with fisher rises to ground, and salvaging finishes.

Claims (4)

1. a general drilling rod horn mouth fisher is characterized in that, is to be sleeved in the straight tube of correcting oviduct (1) by salvaging catcher (3), connects and composes by set bolt (2).
2. according to the described general drilling rod horn mouth fisher of claim 1, it is characterized in that the ring-like loudspeaker face of the horn mouth of correcting oviduct (1) becomes 30 ° of angles with the horn mouth central axis.
3. according to the described general drilling rod horn mouth fisher of claim 1, it is characterized in that correcting oviduct (1) is provided with nose type opening (4).
4. according to the described general drilling rod horn mouth fisher of claim 1, it is characterized in that, salvage catcher (3) upper end and be provided with connection internal thread (6), in correcting oviduct (1), salvage catcher (3) lower end and be provided with catcher external screw thread (5).
CN2010205344050U 2010-09-19 2010-09-19 Universal flare-opening catcher of drilling rod Expired - Fee Related CN201778715U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205344050U CN201778715U (en) 2010-09-19 2010-09-19 Universal flare-opening catcher of drilling rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205344050U CN201778715U (en) 2010-09-19 2010-09-19 Universal flare-opening catcher of drilling rod

Publications (1)

Publication Number Publication Date
CN201778715U true CN201778715U (en) 2011-03-30

Family

ID=43791928

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205344050U Expired - Fee Related CN201778715U (en) 2010-09-19 2010-09-19 Universal flare-opening catcher of drilling rod

Country Status (1)

Country Link
CN (1) CN201778715U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104612617A (en) * 2015-01-22 2015-05-13 中交二航局第三工程有限公司 Broken drill pipe salvage device inside pile foundation hole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104612617A (en) * 2015-01-22 2015-05-13 中交二航局第三工程有限公司 Broken drill pipe salvage device inside pile foundation hole

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110330

Termination date: 20130919