CN204040976U - Oil well fishing device - Google Patents
Oil well fishing device Download PDFInfo
- Publication number
- CN204040976U CN204040976U CN201420427562.XU CN201420427562U CN204040976U CN 204040976 U CN204040976 U CN 204040976U CN 201420427562 U CN201420427562 U CN 201420427562U CN 204040976 U CN204040976 U CN 204040976U
- Authority
- CN
- China
- Prior art keywords
- oil well
- slips
- junk
- dovetail guide
- fishing device
- 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
Links
- 239000003129 oil well Substances 0.000 title claims abstract description 45
- 238000005553 drilling Methods 0.000 abstract description 13
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract 1
- 241000282472 Canis lupus familiaris Species 0.000 description 18
- 239000004576 sand Substances 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001739 rebound effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- -1 as drilling rod Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses an oil well fishing device, oil well fishing device includes: the pipe joint comprises an upper joint, a cylindrical spear, a dovetail guide rail, slips, an elastic device and a limiting structure, wherein a through hole is axially formed in the center of the spear. The utility model discloses a make up top connection, the spear of cylindricality, forked tail guide rail, slips, resilient means and limit structure, constitute oil well fishing device, top connection drilling rod is together gone into the well, through processing a through-hole at the spear center, can make the spear get into before the junk inner chamber, pours into high-pressure medium through the through-hole and washes the junk, gets rid of its inside debris, makes the utility model discloses can smoothly get into the junk inner chamber and salvage, the actual use advantage is obvious; furthermore, the utility model discloses with resilient means, make the slips not only can be according to the nimble removal of bore of junk inner chamber, and enable the slips accurately with junk inner chamber cooperation chucking, do not receive the restriction of junk inner chamber orientation, greatly increased salvages the success rate, has improved construction speed.
Description
Technical field
The utility model relates to underground fishing field, particularly a kind of oil well fishing device.
Background technology
In oilfield exploitation operation, situation under the instrument that has unavoidably is shed to oil well, as drilling rod, oil pipe, milling pipe and packer etc., these instruments fall within after in oil well, affect the normal mining operations of oil well, and easily block oil reservoir, cause economic loss, so need use equipment to salvage the junk in oil well.
For this problem, present solution is generally use a kind of cleek to be connected on drilling rod, along with drilling rod is transferred in oil well, is ticked by trouble of lost tool in hole.Now due to reasons such as the not up to standard and formation sand productions of water injection well water quality; cause water injection well internal corrosion and fouling seriously, trouble of lost tool in hole inner chamber often has the foreign material such as incrustation scale and reservoir sand and piles up, when causing cleek to salvage trouble of lost tool in hole; usually cannot hook junk, cause and salvage unsuccessfully.
Realizing in process of the present utility model, inventor finds that prior art at least exists following problem:
Due to the restriction of this body structure of cleek; it is caused to salvage the junk difficulties such as tubing; and; trouble of lost tool in hole inner chamber often has the foreign material such as incrustation scale and reservoir sand and piles up, and cause cleek fishing success ratio very low, trouble of lost tool in hole usually cannot be salvaged out; be easy to cause oil layer blocking; shorten oil well repair free period, directly have influence on the normal production of oil well, cause economic loss.
Utility model content
In order to the low problem of junk success rate salvaged by the cleek solving prior art, the utility model embodiment provides a kind of oil well fishing device.Described technical scheme is as follows:
A kind of oil well fishing device, described oil well fishing device comprises: top connection, the shaft of cylindricality, dovetail guide, slips, elastic device and position limiting structure, described top connection is connected in turn with described shaft, described dovetail guide is arranged on the sidewall of described shaft, the described slips that can slide along described dovetail guide is provided with in described dovetail guide, described elastic device is arranged in described dovetail guide, and described elastic device one end is connected with the head end of described dovetail guide, the other end is connected with described slips, described position limiting structure is arranged on the end of described dovetail guide,
The central axis of described shaft to be provided with through hole, described through hole runs through described shaft and described top connection.
Further, the diameter of described through hole is 20mm.
Alternatively, described elastic device is spring.
Alternatively, described elastic device is hydraulic structure.
Further, described oil well fishing device also comprises controller, and described controller is connected with described elastic device.
Alternatively, described position limiting structure is spacing lock dog, and described spacing lock dog is fixed on the end of described dovetail guide.
Further, described position limiting structure also comprises dog screw, and described dog screw is through described spacing lock dog, and described dog screw and described shaft are fixed.
Alternatively, described position limiting structure is stopper slot, and described stopper slot is arranged on the end of described dovetail guide.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
The utility model is by combining the shaft of top connection, cylindricality, dovetail guide, slips, elastic device and position limiting structure, form oil well fishing device, top connection is connected together G.I.H with drilling rod, by processing a through hole at shaft center, can make before shaft enters junk inner chamber, inject high-pressure medium by drilling rod, through hole to junk inner chamber to rinse, remove incrustation scale and the reservoir sand of its inside, make the utility model can enter junk inner chamber smoothly to salvage, actual use is with the obvious advantage; And, the utility model arranges and utilizes elastic device to control the slip of slips in dovetail guide, make slips not only can according to the movement flexibly of the bore of junk inner chamber, and slips can be made accurately to coordinate with junk inner chamber clamp, by junk inner chamber towards restriction, greatly increase fishing success ratio, and improve speed of application, shorten the duty cycle of oil well.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more 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 these accompanying drawings.
Fig. 1 is the structural representation of the oil well fishing device that the utility model embodiment provides.
Wherein: 1 top connection, 2 shafts, 3 through holes, 4 dovetail guides, 5 elastic devices, 6 slips, 7 position limiting structures, 71 spacing lock dogs, 72 dog screws.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
As shown in Figure 1, embodiments provide a kind of oil well fishing device, described oil well fishing device comprises: top connection 1, the shaft 2 of cylindricality, dovetail guide 4, slips 6, elastic device 5 and position limiting structure 7, described top connection 1 is connected in turn with described shaft 2, described dovetail guide 4 is arranged on the sidewall of described shaft 2, the described slips 6 that can slide along described dovetail guide 4 is provided with in described dovetail guide 4, described elastic device 5 is arranged in described dovetail guide 4, and described elastic device 5 one end is connected with the head end of described dovetail guide 4, the other end is connected with described slips 6, described position limiting structure 7 is arranged on the end of described dovetail guide 4,
The central axis of described shaft 2 to be provided with through hole 3, described through hole 3 runs through described shaft 2 and described top connection 1.
Wherein, internal thread jointed rod is passed through in top connection 1 upper end by the utility model oil well fishing device, lower end connects the shaft 2 of cylindricality, the diverse location up and down of shaft 2 both sides is respectively provided with a dovetail guide 4, be the skewed slot with certain angle, dovetail guide 4 inclined-plane is the closer to one end of top connection 1, nearer apart from shaft 2 axial centre, this one end can be claimed to be the head end of dovetail guide 4, this head end is connected with elastic device 5, elastic device 5 other end connects slips 6, slips 6 is arranged on dovetail guide 4, at dovetail guide 4 end, be provided with position limiting structure 7, shaft 2 central axis to be provided with a through hole 3, run through shaft 2 and top connection 1,
When salvaging, oil well fishing device is arranged on drilling rod, along with the position at distance 1 to 2 meter, junk top vertically transferred to by drilling rod, turn on pump squeezes into high-pressure medium in drilling rod, high-pressure medium is rinsed by the inner chamber of the through hole 3 pairs of junks in top connection 1 and shaft 2, after rinsing several circulation, lowering drill pipes again, shaft 2 is pushed junk inner chamber, now, slips 6 is pushed to dovetail guide 4 head end by the top of junk inner chamber, slips 6 is diminished to shaft 2 axial centre distance, elastic device 5 is extruded, when slips 6 is less than the top internal diameter of junk inner chamber to the distance of shaft 2 axial centre, shaft 2, elastic device 5 and slips 6 etc. all enter junk inner chamber, now, slips 6 is under Action of Gravity Field own, and elastic device 5 pushes slips 6 to dovetail guide 4 end because of rebound effect, slips 6 is increased to the distance of shaft 2 axial centre, slips 6 is made to produce frictional force with the inwall close contact of junk inner chamber, then, on carry drilling rod, junk has the trend moved downward, slips 6 is also had downwards namely to the trend of dovetail guide 4 end movement, so considerably increase the frictional force between junk inner chamber and slips 6, this frictional force is utilized up to be carried by junk, position limiting structure 7 is at the end of dovetail guide 4, restriction slips 6 skids off dovetail guide 4, in salvaging process, if drilling rod suspending weight increases, then illustrate to have dragged for and obtain junk,
The utility model is provided with through hole 3 in the axial centre of shaft 2, junk can be rinsed conducting high-pressure medium, remove incrustation scale and the reservoir sand of junk inner chamber, make oil well fishing device can enter junk inner chamber smoothly, increase fishing success ratio, it is increased to 80%, and junk is salvaged come up after, do not block oil reservoir, can workover cost be saved; After removing the incrustation scale of junk inside and reservoir sand, the axial load of shaft 2 reduces, not easy fracture; Oil well fishing device directly rinses junk, decreases lower sand-flushing pipe column to rinse the operation of incrustation scale and reservoir sand, effectively improves operating efficiency and speed of application, shortened the duty cycle of well a lot;
In addition, another advantage of the utility model is, also can be applicable to the situation of the inner chamber non-vertical state of salvaging junk, by drilling rod, the utility model is aimed at junk inner chamber, and exert a force to junk inner chamber, as a same reason, slips 6 is pushed to dovetail guide 4 head end, and elastic device 5 is extruded, the utility model is made to enter junk inner chamber smoothly, now, rely on the gravity of slips 6 own to dovetail guide 4 end movement if simple, clamp with junk inner chamber to reach, then cannot realize, now, exactly because the rebound effect of elastic device 5, promote slips 6 smoothly and junk inner chamber clamp, realize salvaging, visible, the utility model by junk inner chamber towards restriction, the junk of various situation can be salvaged, applied range, practical application is with the obvious advantage,
In the embodiment of the present invention, the utility model has been applied in oil well fishing by inventor, such as: at II 3-1 that jumps, the 3-13 that jumps, jump 12-6 and jumping in the overhaul of 11-11 tetra-oil wells, utilizes the utility model successfully to salvage respectively: the outer tubing nipple 1 of diameter 73mm and packer 1; Outer 6, the oil pipe of diameter 73mm and packer 2; Outer 1, the oil pipe of diameter 73mm and packer, each 1 of injection well downhole flow regulator; And diameter 66mm packer central tube 1 and lower contact 1, easy to operate, success rate is high.
As shown in Figure 1, further, the diameter of described through hole 3 is 20mm.
Wherein, by shaft 2 central axis to through hole 3 diameter be set to 20mm, be convenient to processing; The impact force that diameter due to the through hole 3 at shaft 2 center becomes large then liquid wash junk inner chamber is larger, when avoiding fluid waste as far as possible, junk inner chamber is rinsed, to reach the object of salvaging smoothly, so suitably can change the diameter of the through hole 3 of shaft 2 axial centre according to the diameter of shaft 2.
As shown in Figure 1, alternatively, described elastic device 5 is spring.
Wherein, described elastic device 5 is arranged in the dovetail guide 4 of shaft 2 sidewall of oil well fishing device, one end is connected with the head end of dovetail guide 4, the other end is connected with slips 6, spring role applies active force to slips 6, after shaft 2 enters junk inner chamber, spring can promote slips 6 and junk inwall close contact to the thrust that slips 6 produces because of rebound effect, the frictional force that close contact produces will produce key effect to salvaging, when making to carry drilling rod vertically, junk is not easy to glide because of deadweight, which adds fishing success ratio.
Alternatively, described elastic device 5 is hydraulic structure.
Wherein, hydraulic structure is prior art, generally comprises hydraulic pump and hydraulic cylinder etc.Hydraulic pump provides power, drives piston in hydraulic cylinder to move, and the piston rod that piston connects is produced mobile, thus controls slips 6 displacement, realizes the object freely controlling slips 6 displacement; Due to the special nature of liquid in oil well, hydraulic structure anticorrosion waterproofing materials can be surrounded, ensure the normal operation of equipment.
Further, described oil well fishing device also comprises controller, and described controller is connected with described elastic device 5.
Wherein, described oil well fishing device arranges controller and is connected with elastic device 5, can realize freely controlling of elastic device 5 pairs of slips 6, increases fishing success ratio, and flexible and convenient to use; And connection control device on elastic device 5, can salvage successfully, controlling slips 6 and to retract dovetail guide 4 head end, slips 6 external diameter is being decreased to and is less than junk open top internal diameter, realize the smooth taking-up of oil well fishing device, decrease the loss of equipment.
As shown in Figure 1, alternatively, described position limiting structure 7 is spacing lock dog 71, and described spacing lock dog 71 is fixed on the end of described dovetail guide 4.
Wherein, in oil well fishing device lift junk process, the frictional force straight down that junk can produce slips 6 because of deadweight, slips 6 is made to produce downward displacement, the effect of spacing lock dog 71 limits slips 6 exactly and skids off dovetail guide 4, spacing lock dog 71 can be square metal block, also can be triangle metal block or other shapes, as long as guarantee to make oil well fishing device slips 6 when lifting the junk of any weight can not deviate from dovetail guide 4.
As shown in Figure 1, further, described position limiting structure 7 also comprises dog screw 72, and described dog screw 72 is through described spacing lock dog 71, and described dog screw 72 is fixed with described shaft 2.
Wherein, the effect of dog screw 72 is fixed in shaft 2 by spacing lock dog 71, can also select alignment pin etc.
Alternatively, described position limiting structure 7 is stopper slot, and described stopper slot is arranged on the end of described dovetail guide 4.
Wherein, the effect of stopper slot is that restriction slips 6 skids off dovetail guide 4; Position limiting structure 7 can also be arrange a spring at the end of each dovetail guide 4, controls the displacement of slips 6 together with the elastic device 5 of dovetail guide 4 other end; Described position limiting structure 7 also can directly be installed on elastic device 5.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. an oil well fishing device, it is characterized in that, described oil well fishing device comprises: top connection, the shaft of cylindricality, dovetail guide, slips, elastic device and position limiting structure, described top connection is connected in turn with described shaft, described dovetail guide is arranged on the sidewall of described shaft, the described slips that can slide along described dovetail guide is provided with in described dovetail guide, described elastic device is arranged in described dovetail guide, and described elastic device one end is connected with the head end of described dovetail guide, the other end is connected with described slips, described position limiting structure is arranged on the end of described dovetail guide,
The central axis of described shaft to be provided with through hole, described through hole runs through described shaft and described top connection.
2. oil well fishing device according to claim 1, is characterized in that, the diameter of described through hole is 20mm.
3. oil well fishing device according to claim 1, is characterized in that, described elastic device is spring.
4. oil well fishing device according to claim 1, is characterized in that, described elastic device is hydraulic structure.
5. the oil well fishing device according to any one of claim 1-4, is characterized in that, described oil well fishing device also comprises controller, and described controller is connected with described elastic device.
6. oil well fishing device according to claim 1, is characterized in that, described position limiting structure is spacing lock dog, and described spacing lock dog is fixed on the end of described dovetail guide.
7. oil well fishing device according to claim 6, is characterized in that, described position limiting structure also comprises dog screw, and described dog screw is through described spacing lock dog, and described dog screw and described shaft are fixed.
8. oil well fishing device according to claim 1, is characterized in that, described position limiting structure is stopper slot, and described stopper slot is arranged on the end of described dovetail guide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427562.XU CN204040976U (en) | 2014-07-31 | 2014-07-31 | Oil well fishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427562.XU CN204040976U (en) | 2014-07-31 | 2014-07-31 | Oil well fishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204040976U true CN204040976U (en) | 2014-12-24 |
Family
ID=52241654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420427562.XU Expired - Fee Related CN204040976U (en) | 2014-07-31 | 2014-07-31 | Oil well fishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204040976U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223892A (en) * | 2016-08-30 | 2016-12-14 | 中煤特殊凿井有限责任公司 | Slide block type fisher |
| CN109184609A (en) * | 2018-09-20 | 2019-01-11 | 华蓥市职业教育培训中心 | A kind of oil well fishing device |
| CN113775311A (en) * | 2021-09-23 | 2021-12-10 | 北京三一智造科技有限公司 | Fishing device and operation machine |
-
2014
- 2014-07-31 CN CN201420427562.XU patent/CN204040976U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223892A (en) * | 2016-08-30 | 2016-12-14 | 中煤特殊凿井有限责任公司 | Slide block type fisher |
| CN106223892B (en) * | 2016-08-30 | 2019-05-14 | 中煤特殊凿井有限责任公司 | Slide block type fisher |
| CN109184609A (en) * | 2018-09-20 | 2019-01-11 | 华蓥市职业教育培训中心 | A kind of oil well fishing device |
| CN113775311A (en) * | 2021-09-23 | 2021-12-10 | 北京三一智造科技有限公司 | Fishing device and operation machine |
| CN113775311B (en) * | 2021-09-23 | 2023-09-26 | 北京三一智造科技有限公司 | Fishing device and working machine |
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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: 20141224 |