CN204941411U - A kind of steel ball fisher - Google Patents

A kind of steel ball fisher Download PDF

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Publication number
CN204941411U
CN204941411U CN201520597867.XU CN201520597867U CN204941411U CN 204941411 U CN204941411 U CN 204941411U CN 201520597867 U CN201520597867 U CN 201520597867U CN 204941411 U CN204941411 U CN 204941411U
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CN
China
Prior art keywords
steel ball
fisher
guide shoe
holding tank
bruising
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Application number
CN201520597867.XU
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Chinese (zh)
Inventor
邓鲁宁
张康卫
张仁杰
崔臣滨
贺文付
王群星
孙国海
孔华昌
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Petrochina Co Ltd
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Petrochina Co Ltd
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Priority to CN201520597867.XU priority Critical patent/CN204941411U/en
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Abstract

The utility model relates to oilfield exploitation technical field, particularly relates to a kind of steel ball fisher, comprises fisher body, magnetic patch, top connection and guide shoe; Described top connection is arranged at the first end of described fisher body; Described guide shoe is arranged at the second end of described fisher body; The inside of the described fisher body near described first end is provided with bruising passage; Described bruising passage is provided with holding tank in the one end near described guide shoe, and described magnetic patch is arranged in described holding tank.Steel ball fisher of the present utility model is when salvaging steel ball, steel ball is guided to enter fisher body by guide shoe, after steel ball touches bruising passage, the instantaneous rising of pressure of steel ball fisher inside, simultaneously, steel ball attracts by the magnetic patch in holding tank, improves the success rate of salvaging, and, can determine whether successfully to drag for according to the pressure of steel ball fisher inside and obtain, in addition, steel ball fisher structure of the present utility model is simple, easy to operate.

Description

A kind of steel ball fisher
Technical field
The utility model relates to oilfield exploitation technical field, particularly relates to a kind of steel ball fisher.
Background technology
In oil-water well production, maintenance process, due to the needs produced and construct, enter the instrument that some are with steel balls under often needing, such as, with steel ball in the standing valve in oil well pump, ball-and-seat is interior with steel ball etc.And, because of instrument quality problems, or production cycle problem, or the use problem of instrument itself, often there will be steel ball and to fall the situation of well.
Existing salvaging mode normally by fishing tool down to shaft bottom, the fish cover in shaft bottom to be entered within the grasping teeth of fishing tool, or between grasping teeth gap.Then, rely on the pressure that drill string weight produces, distortion of each grasping teeth being bent, then make drill string rotating, the grasping teeth of distortion of bending is formed helical form profile of tooth by its direction of rotation, final fish is held tightly or stuck thus drag for and obtain.But, cannot judge whether when existing fishing tool is salvaged in shaft bottom to salvage successfully.And existing fishing tool closes up lack of standardization, easily cause the steel ball picked up again to fall well, cause and salvage unsuccessfully.
Utility model content
The utility model, by providing a kind of steel ball fisher, solves fishing tool of the prior art and cannot judge that whether salvaging is successful, and the technical problem that fishing success ratio is low.
The utility model embodiment provides a kind of steel ball fisher, comprises fisher body, magnetic patch, top connection and guide shoe;
Described top connection is arranged at the first end of described fisher body;
Described guide shoe is arranged at the second end of described fisher body;
The inside of the described fisher body near described first end is provided with bruising passage;
Described bruising passage is provided with holding tank in the one end near described guide shoe, and described magnetic patch is arranged in described holding tank.
Further, described bruising passage is expanding in the one end near described guide shoe, and described holding tank is arranged at described expanding end.
Further, the described expanding chamfering at expanding shoulder place is 45 °.
Further, described holding tank is annular receiving groove.
Further, the end face of described guide shoe in the shape of a spiral.
Further, there is between the summit of described end face and the end point of described end face the arc surface of indent.
Further, described end face has towards the inclination angle of the inner side of described guide shoe.
One or more technical schemes in the utility model embodiment, at least have following technique effect or advantage:
Steel ball fisher of the present utility model is when salvaging steel ball, steel ball is guided to enter fisher body by guide shoe, after steel ball touches bruising passage, the instantaneous rising of pressure of steel ball fisher inside, simultaneously, steel ball attracts by the magnetic patch in holding tank, improves the success rate of salvaging, and, can determine whether successfully to drag for according to the pressure of steel ball fisher inside and obtain, in addition, steel ball fisher structure of the present utility model is simple, easy to operate;
Utilize annular receiving groove, magnetic patch can be distributed around steel ball, add adsorption plane when magnetic patch contacts with steel ball, be conducive to steel ball and adsorbed by magnetic patch, further increase the success rate of salvaging steel ball;
By on guide shoe end face towards the inclination angle of inner side, guide shoe better can be guided steel ball, improves the capture rate of guide shoe to steel ball.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the inverted perspective view of a kind of steel ball fisher in the utility model embodiment;
Fig. 2 is the lateral view of a kind of steel ball fisher in the utility model embodiment.
Wherein, 1 is fisher body, and 11 is bruising passage, and 12 is holding tank, and 2 is magnetic patch, and 3 is top connection, and 4 is guide shoe, and 41 is arc surface.
Detailed description of the invention
Cannot judge that whether salvaging is successful for solving fishing tool of the prior art, and the technical problem that fishing success ratio is low, the utility model provides a kind of steel ball fisher, steel ball is guided to enter fisher body by guide shoe, after steel ball touches bruising passage, the instantaneous rising of pressure of steel ball fisher inside, simultaneously, steel ball attracts by the magnetic patch in holding tank, improves the success rate of salvaging, and, can determine whether successfully to drag for according to the pressure of steel ball fisher inside and obtain, in addition, steel ball fisher structure of the present utility model is simple, easy to operate.
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model provides a kind of steel ball fisher, for salvaging the steel ball falling into shaft bottom, e.g., and the steel ball in oil well pump in standing valve, or the steel ball in ball-and-seat.As depicted in figs. 1 and 2, steel ball fisher comprises fisher body 1, magnetic patch 2, top connection 3 and guide shoe 4.Top connection 3 is arranged at the first end of fisher body 1, and guide shoe 4 is arranged at the second end of fisher body 1, and first end is the top of fisher body 1, and the second end is the bottom of fisher body 1.The inside of the fisher body 1 near first end is provided with bruising passage 11, and bruising passage 11 is provided with holding tank 12 in the one end near guide shoe 4, and magnetic patch 2 is arranged in holding tank 12.
In this application, fisher body 1 is cylindrical, and fisher body 1 is hollow structure, and bruising passage 11 and holding tank 12 are all arranged on the inside of fisher body 1.Bruising passage 11 is positioned at the top of fisher body 1, and holding tank 12 is arranged at the bottom of fisher body 1, and holding tank 12 is arranged at one end of bruising passage 11.In a preferred embodiment, bruising passage 11 is expanding in the one end near guide shoe 4, and holding tank 12 is arranged at expanding end.The expanding chamfering at expanding shoulder place is 45 °.
Further, bruising passage 11 is specially a through hole, and holding tank 12 ringwise.Concrete, holding tank 12 is annular receiving groove, can place multiple magnetic patch 2 in holding tank 12, multiple magnetic patch 2 circular array, thus, add adsorption plane when magnetic patch 2 contacts with steel ball, steel ball is more easily adsorbed with magnetic patch 2, improves the success rate of salvaging steel ball.
In this application, guide shoe 4 is tubular, for guiding steel ball.In a preferred embodiment, the end face of guide shoe 4 in the shape of a spiral, preferably, is less than or equal to 180 ° from the summit of end face to the spiral angle of the end of end face point.Further, end face has towards the inclination angle inside guide shoe 4, has the arc surface 41 of indent between the summit of end face and end point.In addition, arc surface 41 can also be arranged on and summit and the end point position at a distance of predeterminable range, such as, apart from the primary importance at 1cm place, summit and the second place at distance end point 1cm place, mills out the arc surface 41 of indent between the first position and the second position.Wherein, the diameter of the circular arc corresponding to arc surface 41 can be 5cm.The application passes through the inclination angle towards inner side on guide shoe 4 end face, guide shoe 4 better can be guided steel ball, improve the capture rate of guide shoe to steel ball.In addition, the guide shoe 4 in the application is suitable with the size of salvaging sleeve pipe, and when the size of salvaging sleeve pipe increases, the size of guide shoe 4 increases, and when the size of salvaging sleeve pipe reduces, the size of guide shoe 4 reduces.
It should be noted that, Fig. 1 is the inversion figure of steel ball fisher, and in use, upward, down, top connection 3 is for being connected with oil pipe or drilling rod end for guide shoe 4 in top connection 3.Further, preferably, top connection 3, fisher body 1 and guide shoe 4 are one-body molded, certainly, also can make top connection 3, fisher body 1 and guide shoe 4 respectively, and three are carried out correspondence connection.
In this application, after top connection 3 and oil pipe or drilling rod end are connected, by steel ball fisher body 1 G.I.H, and down to the steel ball fallen in well at a distance of at least 2m.Then, start the slush pump of cementing truck, carry out reacting cycle well-flushing, until pressure stability and export anti-liquid normal after, slow circumvolve transfers tubing string, observes pump pressure situation.Meanwhile, guide shoe 4 can be drawn steel ball by rotation, and guides to the inside of fisher body 1, now, the workover fluid above returned can by steel ball upwards lifting, when steel ball touches bruising passage 11, the pressure passageway 11 that crashes produces bruising, the instantaneous rising of pressure of steel ball fisher inside.Because the pressure of steel ball fisher inside is identical with the pump pressure of slush pump, just can judge that whether salvaging is successful by the pump pressure at ground observation slush pump, when pump pressure rises, then show to salvage successfully, otherwise, salvage unsuccessfully.After pump pressure rises, control slush pump and quit work, to avoid working on when pressure increase damage is caused to oil-water well.Further, when steel ball is by upwards lifting, the magnetic patch 2 be received in groove 12 attracts, thus drags for and obtain.
When utilizing the steel ball fisher of the application to salvage steel ball, whether successfully can not only know salvaging, can also improve the success rate of salvaging, in addition, the steel ball fisher structure of the application is simple, easy to operate.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
Steel ball fisher of the present utility model is when salvaging steel ball, steel ball is guided to enter fisher body by guide shoe, after steel ball touches bruising passage, the instantaneous rising of pressure of steel ball fisher inside, simultaneously, steel ball attracts by the magnetic patch in holding tank, improves the success rate of salvaging, and, can determine whether successfully to drag for according to the pressure of steel ball fisher inside and obtain, in addition, steel ball fisher structure of the present utility model is simple, easy to operate;
Utilize annular receiving groove, magnetic patch can be distributed around steel ball, add adsorption plane when magnetic patch contacts with steel ball, be conducive to steel ball and adsorbed by magnetic patch, further increase the success rate of salvaging steel ball;
By on guide shoe end face towards the inclination angle of inner side, guide shoe better can be guided steel ball, improves the capture rate of guide shoe to steel ball.
Although described preferred embodiment of the present utility model, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the utility model scope.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.

Claims (7)

1. a steel ball fisher, is characterized in that, comprises fisher body, magnetic patch, top connection and guide shoe;
Described top connection is arranged at the first end of described fisher body;
Described guide shoe is arranged at the second end of described fisher body;
The inside of the described fisher body near described first end is provided with bruising passage;
Described bruising passage is provided with holding tank in the one end near described guide shoe, and described magnetic patch is arranged in described holding tank.
2. steel ball fisher as claimed in claim 1, is characterized in that, described bruising passage is expanding in the one end near described guide shoe, and described holding tank is arranged at described expanding end.
3. steel ball fisher as claimed in claim 2, it is characterized in that, the described expanding chamfering at expanding shoulder place is 45 °.
4. steel ball fisher as claimed in claim 1, it is characterized in that, described holding tank is annular receiving groove.
5. steel ball fisher as claimed in claim 1, it is characterized in that, the end face of described guide shoe in the shape of a spiral.
6. steel ball fisher as claimed in claim 5, is characterized in that having the arc surface of indent between the summit of described end face and the end point of described end face.
7. steel ball fisher as claimed in claim 5, it is characterized in that, described end face has the inclination angle towards the inner side of described guide shoe.
CN201520597867.XU 2015-08-10 2015-08-10 A kind of steel ball fisher Active CN204941411U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520597867.XU CN204941411U (en) 2015-08-10 2015-08-10 A kind of steel ball fisher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520597867.XU CN204941411U (en) 2015-08-10 2015-08-10 A kind of steel ball fisher

Publications (1)

Publication Number Publication Date
CN204941411U true CN204941411U (en) 2016-01-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107790448A (en) * 2016-08-31 2018-03-13 中国石油天然气股份有限公司 Receive ball car
CN110886587A (en) * 2019-10-12 2020-03-17 中国石油天然气集团有限公司 Coiled tubing fisher and coiled tubing fishing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107790448A (en) * 2016-08-31 2018-03-13 中国石油天然气股份有限公司 Receive ball car
CN110886587A (en) * 2019-10-12 2020-03-17 中国石油天然气集团有限公司 Coiled tubing fisher and coiled tubing fishing method

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