CN105569600A - Downhole tubular object fishing device - Google Patents

Downhole tubular object fishing device Download PDF

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Publication number
CN105569600A
CN105569600A CN201610115937.2A CN201610115937A CN105569600A CN 105569600 A CN105569600 A CN 105569600A CN 201610115937 A CN201610115937 A CN 201610115937A CN 105569600 A CN105569600 A CN 105569600A
Authority
CN
China
Prior art keywords
fishing device
downhole tubular
rope
latch
tubular thing
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.)
Granted
Application number
CN201610115937.2A
Other languages
Chinese (zh)
Other versions
CN105569600B (en
Inventor
邢宝玉
邢伟冬
邢玉莹
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.)
Suiling County Miaoyuan Well Technology Co Ltd
Original Assignee
Suiling County Miaoyuan Well Technology 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 Suiling County Miaoyuan Well Technology Co Ltd filed Critical Suiling County Miaoyuan Well Technology Co Ltd
Priority to CN201610115937.2A priority Critical patent/CN105569600B/en
Publication of CN105569600A publication Critical patent/CN105569600A/en
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Publication of CN105569600B publication Critical patent/CN105569600B/en
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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
    • E21B31/00Fishing for or freeing objects in boreholes or wells
    • E21B31/12Grappling tools, e.g. tongs or grabs
    • E21B31/20Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears

Abstract

The invention provides a downhole tubular object fishing device and relates to the technical field of downhole falling object fishing in order to solve the problem that downhole tubular falling objects are difficult to fish. The downhole tubular object fishing device comprises a hoisting hook, a hoisting ring and a shell with a cavity. One end of the hoisting ring is connected with the hoisting hook in a hooked mode, the other end of the hoisting ring is connected with the shell, the hoisting ring is provided with a tubular object limiting shaft, the bottom end of the shell is connected with a guide head, a conical clamping element is arranged in the cavity and connected with a rope, a plurality of bayonets are arranged on the side wall of the shell, at least two clamping teeth are installed in the cavity and are sequentially connected end to end, and the clamping teeth are connected through connecting pieces. Each connecting piece comprises at least one reset elastic element. The tip end of the conical clamping element extends out of the area formed by the clamping teeth, the conical clamping element is pulled by the rope to move along the cavity, and accordingly the clamping teeth are driven to stretch out of the corresponding bayonets. The downhole tubular object fishing device is used for fishing tubular objects located in a downhole.

Description

A kind of downhole tubular thing fishing device
Technical field
The present invention relates to trouble of lost tool in hole fishing operation field, especially relate to a kind of downhole tubular thing fishing device.
Background technology
Various well class often has tube (as iron pipe, plastic pipe, hose etc.) and accidentally falls in well in the middle of use procedure; and downhole tubular fishing junk to be specialty salvage personage always comprises the problem that fishing specialist has a headache always; to such an extent as to have large quantities of well class because tubulose junk cannot be pulled out and thoroughly scrap every year; especially well scrappage is higher; have impact on the production of agricultural, industry directly or indirectly, cause the waste of no small economic loss and manpower, resource to the people and country.
Summary of the invention
The object of the present invention is to provide a kind of downhole tubular thing fishing device, to solve the technical problem of the downhole tubular fishing junk difficulty existed in prior art.
For achieving the above object, technical scheme of the present invention is achieved in that
Downhole tubular thing fishing device provided by the invention, comprise: suspension hook, suspension ring and the housing with cavity, described suspension hook is connected with rope, one end of described suspension ring and described suspension hook clasp joint, the other end is connected with described housing, described suspension ring are provided with tube limit shaft, the bottom of described housing is connected with guide head, conic clamp component is provided with in described cavity, described conic clamp component is connected with described rope, the sidewall of described housing is provided with multiple bayonet socket, at least two latches are installed in described cavity, each described latch head and the tail are connected successively, be connected respectively by connector between each described latch, described connector comprises at least one return springs, the region that each described latch surrounds is stretched out at the tip of described conic clamp component, described conic clamp component is pulled to move along described cavity by rope, thus drive described latch to stretch out corresponding described bayonet socket.
Preferably, described conic clamp component is connected with described rope by lifting piece, described lifting piece comprises pull bar and draw ring, and one end of described pull bar is connected with described conic clamp component, the other end is connected with described draw ring, and described rope passes described draw ring and is connected with described draw ring.
Preferably, also comprise junction plate, described suspension hook and described junction plate hinged, described junction plate is provided with through hole, and described rope is through described through hole being connected with described junction plate.
Preferably, described return springs is spring.
Preferably, described latch is arc, and multiple described latch surrounds annular.
Preferably, the quantity of described latch is two, and the two ends of two described latches are all connected by described connector.
Preferably, two described connectors are a return springs and a bearing pin.
Preferably, two described connectors are return springs.
Preferably, described guide head is conical, and one end that the diameter of described guide head is larger is connected with described housing.
Preferably, described guide head comprises multiple connecting axle, and one end of each described connecting axle is connected with the bottom of described housing respectively, and the other end of each described connecting axle is connected to a bit.
Relative to prior art, downhole tubular thing fishing device of the present invention has following advantage:
When using downhole tubular thing fishing device provided by the invention, use rope that downhole tubular thing fishing device is put into down-hole, guide head is made to enter in the cavity of tube to be salvaged, then housing and suspension ring are driven to enter in the cavity of tube, after one end of tube contacts with the tube limit shaft on suspension ring, guide head and suspension ring stop moving in the cavity of tube, and now suspension hook still moves down, and thus suspension hook is separated with suspension ring; Upwards pull rope, because suspension hook is separated with suspension ring, and downhole tubular thing fishing device has stopped moving down, therefore rope upwards pulls conic clamp component, in the process that conic clamp component moves upward, drive latch to stretch out corresponding bayonet socket, after latch stretches out bayonet socket, understand the contact internal walls with tube to be salvaged, even the teeth portion of latch can penetrate in the inwall of tube; After latch snaps in the inwall of tube, conic clamp component engages with latch; Continue upwards tow, conic clamp component drives latch, and latch drives housing, guide head, suspension ring and waits that salvaging tube moves upward, thus will wait that salvaging tube comes from underground fishing.
In sum, the tube using downhole tubular thing fishing device provided by the invention successfully to solve down-hole salvages the problem of difficulty, and the structure of downhole tubular thing provided by the invention is simple, is easy to operation, and salvaging efficiency is high, carries convenient transportation.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in detailed description of the invention or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation one of the downhole tubular thing fishing device that Fig. 1 provides for the embodiment of the present invention;
The structural representation two of the downhole tubular thing fishing device that Fig. 2 provides for the embodiment of the present invention;
The connection diagram of latch and connector in the downhole tubular thing fishing device that Fig. 3 provides for the embodiment of the present invention.
Reference numeral:
1-suspension hook; 2-suspension ring;
3-housing; 4-tube limit shaft;
5-connecting axle; 6-conic clamp component;
7-rope; 8-bayonet socket;
9-latch; 10-spring;
11-pull bar; 12-draw ring;
13-junction plate.
Detailed description of the invention
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
The structural representation one of the downhole tubular thing fishing device that Fig. 1 provides for the embodiment of the present invention, the structural representation two of the downhole tubular thing fishing device that Fig. 2 provides for the embodiment of the present invention, the connection diagram of latch and connector in the downhole tubular thing fishing device that Fig. 3 provides for the embodiment of the present invention, as Figure 1-3, the downhole tubular thing fishing device that the embodiment of the present invention provides, comprise: suspension hook 1, suspension ring 2 and the housing 3 with cavity, suspension hook 1 is connected with rope 7, one end of suspension ring 2 and suspension hook 1 clasp joint, the other end is connected with housing 3, suspension ring 2 are provided with tube limit shaft 4, the bottom of housing 3 is connected with guide head, conic clamp component 6 is provided with in cavity, conic clamp component 6 is connected with rope 7, the sidewall of housing 3 is provided with multiple bayonet socket 8, at least two latches 9 are installed in cavity, each latch 9 head and the tail are connected successively, be connected respectively by connector between each latch 9, connector comprises at least one return springs, the region that each latch 9 surrounds is stretched out at the tip of conic clamp component 6, conic clamp component 6 is pulled to move along cavity by rope 7, thus drive latch 9 to stretch out corresponding bayonet socket 8.
When the downhole tubular thing fishing device using the embodiment of the present invention to provide, use rope 7 that downhole tubular thing fishing device is put into down-hole, guide head is made to enter in the cavity of tube to be salvaged, then housing 3 and suspension ring 2 are driven to enter in the cavity of tube, after one end of tube contacts with the tube limit shaft 4 on suspension ring 2, guide head and suspension ring 2 stop moving in the cavity of tube, and now suspension hook 1 still moves down, thus suspension hook 1 is separated with suspension ring 2, because suspension hook 1 is connected with rope 7, therefore suspension hook 1 can not drop to down-hole; Upwards pull rope 7, because suspension hook 1 is separated with suspension ring 2, and downhole tubular thing fishing device has stopped moving down, therefore rope 7 upwards pulls conic clamp component 6, in the process that conic clamp component 6 moves upward, drive latch 9 to stretch out corresponding bayonet socket 8, after latch 9 stretches out bayonet socket 8, understand the contact internal walls with tube to be salvaged, even the teeth portion of latch 9 can penetrate in the inwall of tube; After latch 9 snaps in the inwall of tube, conic clamp component 6 engages with latch 9; Continue upwards tow 7, conic clamp component 6 drives latch 9, and latch 9 drives housing 3, guide head, suspension ring 2 and waits that salvaging tube moves upward, thus will wait that salvaging tube comes from underground fishing.Salvaged by tube and after being separated with tubular article fishing device by tube, conic clamp component 6 gets back to housing bottom, return springs recovers initial position, thus drives latch 9 to return to initial position, so that next time uses.
In sum, the tube using the downhole tubular thing fishing device that provides of the embodiment of the present invention successfully to solve down-hole salvages the problem of difficulty, and the structure of downhole tubular thing that the embodiment of the present invention provides is simple, is easy to operation, salvaging efficiency is high, carries convenient transportation.
It should be noted that, in downhole tubular thing fishing device, the weight of the hook-shaped end of suspension hook 1 is less than the weight of the other end, and rope 7 is connected with the central region of suspension hook 1, in the process declined, due to hook-shaped end and suspension ring 2 clasp joint of suspension hook 1, therefore, the hook-shaped end of suspension hook 1 is positioned at the below of the other end.
In the present embodiment, conic clamp component 6 can be polished by columniform iron prop and be formed, because conic clamp component 6 weight is larger, and by gravity in the process dropping to down-hole, therefore conic clamp component 6 is dropping in the process in well, is positioned at the bottom of housing 3 all the time, the region that the diameter of conic clamp component 6 is less is positioned at the region that latch 9 surrounds, now, conic clamp component 6 does not contact with latch 9, and latch 9 is positioned at housing 3.When guide head and housing 3 enter in the cavity of tube to be salvaged, and tube limit shaft 4 is with after the end thereof contacts of the tube salvaged, suspension ring 2 are separated with suspension hook 1, weight due to the hook-shaped end of suspension hook 1 is less than the weight of the other end, and therefore, the other end of suspension hook 1 moves downward, hook-shaped end moves upward, in the process risen, the hook-shaped end of suspension hook 1 is positioned at the top of the other end, thus hook-shaped end in the process risen can be avoided again to catch on suspension ring 2.
It should be noted that, the rope 7 in the downhole tubular thing fishing device that the present embodiment provides can be nylon rope, the rope made of hemp or irony chain.
Can for be directly connected between conic clamp component 6 with rope 7, also can be indirectly connect, as shown in Figure 1, conic clamp component 6 is connected with rope 7 indirectly by lifting piece, lifting piece comprises pull bar 11 and draw ring 12, one end of pull bar 11 is connected with conic clamp component 6, the other end is connected with draw ring 12, and rope 7 passes draw ring 12 and is connected with draw ring 12, and namely rope 7 ties up on draw ring 12.Pull bar 11 can increase the distance between conic clamp component 6 and latch 9, avoids conic clamp component 6 to be released outside bayonet socket 8 by latch 9 too early.
Suspension hook 1 can directly be connected with rope 7, or suspension hook 1 can be connected indirectly with rope 7.As shown in Figure 1, suspension hook 1 is connected with rope 7 by junction plate 13.During concrete enforcement, downhole tubular thing fishing device also comprises junction plate 13, and suspension hook 1 is hinged with junction plate 13, and junction plate 13 is provided with through hole, and rope 7 passes through hole and is connected with junction plate 13 (rope 7 passes through hole and fastens on junction plate 13).Particularly, junction plate 13 is connected with the central region of suspension hook 1, and junction plate 13 can be connected by bolt or axle with suspension hook 1, to ensure that suspension hook 1 can rotate relative to junction plate 13.Suspension hook 1 is connected with rope 7 indirectly preferably by junction plate 13, and so design can be convenient to suspension hook 1 and rotate.When end contact with tube of tube limit shaft 4, suspension hook 1 and suspension ring 2 depart from, and the weight due to the hook-shaped end of suspension hook 1 is less than the weight of the other end, and therefore suspension hook 1 rotates around the junction with junction plate 13, thus make hook-shaped end upward, avoid hook-shaped end again with suspension hook 1 clasp joint.
In the present embodiment, return springs can be spring 10, rubber ring or rubber band etc.Due to compared with rubber ring or rubber band, the elastic range of spring 10 is comparatively large and application life is longer, and therefore, return springs is preferably spring 10.
When conic clamp component 6 is conical, for the ease of making conic clamp component 6 pass through, preferably, latch 9 is arc, and multiple latch 9 surrounds annular, and conical conic clamp component 6 passes from the region of annular.
In the present embodiment, the quantity of latch 9 is two, and the two ends of two latches 9 are all connected by connector.In wherein a kind of detailed description of the invention of the present embodiment, two connectors are a return springs and a bearing pin.Design like this, in conic clamp component 6 process that latch 9 moves up relatively, return springs is extended, and two latches 9 rotate around bearing pin respectively simultaneously, thus stretch out from the bayonet socket 8 of correspondence, to snap in the inwall waiting to salvage tube.
In another detailed description of the invention of the present embodiment, two connectors are return springs.Design like this, in conic clamp component 6 process that latch 9 moves up relatively, two return springs are all extended, thus two latches 9 are moved laterally, thus stretch out from the bayonet socket 8 of correspondence respectively, to snap in the inwall waiting to salvage tube.
In downhole tubular thing fishing device, stretch in the cavity of tube to be salvaged for ease of guide head, in a preferred embodiment, guide head is conical, and one end that the diameter of guide head is larger is connected with housing 3.Downhole tubular thing fishing device, is being put in the process in well outwardly by the tip of guide head, and the tip of guide head down, thus is convenient in the cavity of the tube to be salvaged entering down-hole.
Guide head can also be other structures, and as shown in Figure 1, in a kind of detailed description of the invention, guide head comprises multiple connecting axle 5, and one end of each connecting axle 5 is connected with the bottom of housing 3 respectively, and the other end of each connecting axle 5 is connected to a bit.That is, ensure the space that the space that accounts for, guide head one end is outwardly less than one end that guide head is connected with housing 3 and accounts for, guide head one end is outwardly tip, thus is convenient in the cavity of the tube to be salvaged entering down-hole.
As shown in Figure 1, in wherein a kind of detailed description of the invention of the present embodiment, downhole tubular thing fishing device comprises: suspension hook 1, suspension ring 2 and the housing 3 with cavity, one end of suspension ring 2 is connected with housing 3 with suspension hook 1 clasp joint, the other end, the upper area of suspension ring 2 is horizontally arranged with tube limit shaft 4, and the bottom of housing 3 is connected with guide head, and the tip of guide head down; Conic clamp component 6 is provided with in cavity, the tip of conic clamp component 6 is connected with rope 7 by lifting piece, lifting piece comprises pull bar 11 and draw ring 12, and one end of pull bar 11 is connected with draw ring 12, another calculates and be connected with the tip of conic clamp component 6, and rope 7 ties up on draw ring 12; The sidewall of housing 3 is provided with two bayonet sockets 8, two latches 9 are installed in cavity, be connected respectively by spring 10 between latch 9.
When using above-mentioned downhole tubular thing fishing device, use rope 7 that downhole tubular thing fishing device is put into down-hole, operating personnel are by lighting device viewing down-hole situation, thus the particular location of tube clearly to be salvaged, and then handle rope 7, mobile downhole tubular thing fishing device, enter in the cavity of tube to be salvaged to make guide head, then housing 3 and suspension ring 2 are driven to enter in the cavity of tube, after one end of tube contacts with the tube limit shaft 4 on suspension ring 2, guide head and suspension ring 2 stop moving in the cavity of tube, and now suspension hook 1 still moves down, thus suspension hook 1 is separated with suspension ring 2, the hook-shaped end of suspension hook 1 upwards rotates, upwards pull rope 7, because suspension hook 1 is separated with suspension ring 2, and downhole tubular thing fishing device has stopped moving down, therefore rope 7 upwards pulls conic clamp component 6, in the process that conic clamp component 6 moves upward, drive latch 9 to stretch out corresponding bayonet socket 8, after latch 9 stretches out bayonet socket 8, understand the contact internal walls with tube to be salvaged, even the teeth portion of latch 9 can penetrate in the inwall of tube, after latch 9 snaps in the inwall of tube, conic clamp component 6 engages with latch 9, continue upwards tow 7, conic clamp component 6 drives latch 9, and latch 9 drives housing 3, guide head, suspension ring 2 and waits that salvaging tube moves upward, thus will wait that salvaging tube comes from underground fishing.
It is worth mentioning that, the size of each several part in above-mentioned downhole tubular thing fishing device or can be with the size of the tube salvaged specifically to set according to the size of well.
Above-mentioned downhole tubular thing fishing device is transferred in well or from well by crane gear and is lifted, and crane gear can be hoist engine, Chain block, electric block, trepan, crane or agricultural vehicle etc.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (10)

1. a downhole tubular thing fishing device, it is characterized in that, comprise: suspension hook, suspension ring and the housing with cavity, described suspension hook is connected with rope, one end of described suspension ring and described suspension hook clasp joint, the other end is connected with described housing, described suspension ring are provided with tube limit shaft, the bottom of described housing is connected with guide head, conic clamp component is provided with in described cavity, described conic clamp component is connected with described rope, the sidewall of described housing is provided with multiple bayonet socket, at least two latches are installed in described cavity, each described latch head and the tail are connected successively, be connected respectively by connector between each described latch, described connector comprises at least one return springs, the region that each described latch surrounds is stretched out at the tip of described conic clamp component, described conic clamp component is pulled to move along described cavity by rope, thus drive described latch to stretch out corresponding described bayonet socket.
2. downhole tubular thing fishing device according to claim 1, it is characterized in that, described conic clamp component is connected with described rope by lifting piece, described lifting piece comprises pull bar and draw ring, one end of described pull bar is connected with described conic clamp component, the other end is connected with described draw ring, and described rope passes described draw ring and is connected with described draw ring.
3. downhole tubular thing fishing device according to claim 1, is characterized in that, also comprise junction plate, described suspension hook and described junction plate hinged, described junction plate is provided with through hole, and described rope is through described through hole being connected with described junction plate.
4. downhole tubular thing fishing device according to claim 1, is characterized in that, described return springs is spring.
5. downhole tubular thing fishing device according to claim 1, is characterized in that, described latch is arc, and multiple described latch surrounds annular.
6. downhole tubular thing fishing device according to claim 1, is characterized in that, the quantity of described latch is two, and the two ends of two described latches are all connected by described connector.
7. downhole tubular thing fishing device according to claim 6, is characterized in that, two described connectors are a return springs and a bearing pin.
8. downhole tubular thing fishing device according to claim 6, is characterized in that, two described connectors are return springs.
9. downhole tubular thing fishing device according to claim 1, is characterized in that, described guide head is conical, and one end that the diameter of described guide head is larger is connected with described housing.
10. downhole tubular thing fishing device according to claim 1, it is characterized in that, described guide head comprises multiple connecting axle, and one end of each described connecting axle is connected with the bottom of described housing respectively, and the other end of each described connecting axle is connected to a bit.
CN201610115937.2A 2016-03-01 2016-03-01 A kind of downhole tubular thing fishing device Active CN105569600B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108533205A (en) * 2018-04-12 2018-09-14 中交二航局第三工程有限公司 Chopping bit fishing tool and method
CN110439493A (en) * 2019-09-20 2019-11-12 成都里尔斯石油科技有限公司 Anti-lost sealing preventing spray head and blowout hookup
CN111268062A (en) * 2020-04-07 2020-06-12 闫培培 Fishing robot
CN114961622A (en) * 2022-06-20 2022-08-30 石兴安 Fishing tool

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108533205A (en) * 2018-04-12 2018-09-14 中交二航局第三工程有限公司 Chopping bit fishing tool and method
CN110439493A (en) * 2019-09-20 2019-11-12 成都里尔斯石油科技有限公司 Anti-lost sealing preventing spray head and blowout hookup
CN111268062A (en) * 2020-04-07 2020-06-12 闫培培 Fishing robot
CN114961622A (en) * 2022-06-20 2022-08-30 石兴安 Fishing tool

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