CN204311983U - Anti-drop joint for oil well - Google Patents
Anti-drop joint for oil well Download PDFInfo
- Publication number
- CN204311983U CN204311983U CN201420680206.9U CN201420680206U CN204311983U CN 204311983 U CN204311983 U CN 204311983U CN 201420680206 U CN201420680206 U CN 201420680206U CN 204311983 U CN204311983 U CN 204311983U
- Authority
- CN
- China
- Prior art keywords
- lost
- joint
- oil well
- oil
- pipeline section
- 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 72
- 238000004519 manufacturing process Methods 0.000 claims abstract description 31
- 238000011084 recovery Methods 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 44
- 230000007797 corrosion Effects 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model provides a joint is prevented falling by oil well installs in the oil recovery sleeve pipe in the oil recovery equipment, and the oil recovery sleeve pipe includes: the inner diameter of the first pipe section is larger than that of the second pipe section; an oil well anti-drop joint comprising: the first joint body is connected with the tail end of a pipe column of the oil production equipment; the anti-falling boss is connected with the first connector body at one end; the outer diameter of the anti-falling boss is larger than the inner diameter of the second pipe section. When the tubular column among the oil recovery equipment is because the corruption or vibrations wearing and tearing fracture or when droing, the oil well anti-falling connects and cracked tubular column whereabouts in the first pipeline section of oil recovery sheathed tube simultaneously, when falling the second pipeline section, because the external diameter of anti-falling boss is greater than the internal diameter of second pipeline section, makes the oil well anti-falling connect card no longer fall in the oil recovery sheathed tube, can not cause the damage and the oil well pollution of oil recovery equipment.
Description
Technical field
The utility model relates to a kind of oil extraction in oil field down-hole technical field of tools, particularly relates to the anti-lost joint of a kind of oil well.
Background technology
The oil field majority of China is distributed in geological conditions and the comparatively severe area of geological environment, and the oil well in these areas is general comparatively dark, and therefore oil recovery difficulty is very large, and therefore, current oil production equipment mainly comprises Electric Submersible Pump Unit and deep-well oil pump.In addition, in prior art, because Electric Submersible Pump Unit and deep-well oil pump carry out exploitation work in the environment of HTHP, be therefore easily subject to the erosion of the corrosive mediums such as oil, gas, water, sand, wax, dirt.Meanwhile, because Electric Submersible Pump Unit and deep-well oil pump are from the vibrations of the process run, wearing and tearing, therefore also can cause the flow string on this Electric Submersible Pump Unit and deep-well oil pump in weakness fracture or come off.
And flow string is once fracture occur or comes off, flow string along falling in long string, thus causes secondary damage and the formation damage of oil production equipment.Meanwhile, along with the degree of depth of current oil well is increasing, the size of long string is more and more less, thus larger to oil production equipment damaged condition, salvage difficulty and salvage cost also higher.
Utility model content
The utility model provides a kind of oil well anti-lost joint, to prevent due to tubing string fracture or to come off and cause damage to oil production equipment and formation damage.
The utility model provides a kind of oil well anti-lost joint, is arranged in the long string in oil production equipment; Wherein,
Described long string comprises: the first pipeline section be interconnected and the second pipeline section, and the internal diameter of described first pipeline section is greater than the internal diameter of described second pipeline section;
The anti-lost joint of described oil well, comprising:
First joint body, is connected with the end of the tubing string of described oil production equipment;
Anti-lost boss, one end of described anti-lost boss is connected with described first joint body; The external diameter of described anti-lost boss is greater than the internal diameter of described second pipeline section.
In an embodiment of the present utility model, also comprise guiding gutter; Described guiding gutter is arranged on described anti-lost boss.
In an embodiment of the present utility model, also comprise: the second joint body, be connected with the other end of described anti-lost boss.
In an embodiment of the present utility model, the quantity of described guiding gutter is more than or equal to 1, and is less than or equal to 5.
In an embodiment of the present utility model, described guiding gutter bearing of trend becomes miter angle with the axis of described anti-lost boss.
In an embodiment of the present utility model, described first joint body is 3.5 inches of flat button screw threads, and described second joint body is 2.875 inches of external upset (EU) button screw threads.
In an embodiment of the present utility model, described first joint body is 2.875 inches of external upset (EU) button screw threads, and described second joint body is 3.5 inches of flat button screw threads.
In an embodiment of the present utility model, described first pipeline section is 7 inches of sleeve pipes.
In an embodiment of the present utility model, described second pipeline section is 5.5 inches of sleeve pipes.
In the utility model, due to by by anti-lost for oil well joint, be arranged in the long string in oil production equipment.And the external diameter of the anti-lost boss that the anti-lost joint of oil well comprises is greater than the internal diameter of the second pipeline section in long string.Therefore, when the tubing string in oil production equipment is due to corrosion or when shaking wear and rupture or come off, the external diameter of anti-lost boss is greater than the internal diameter of the second pipeline section, make tubing string because corrosion or vibrations wearing and tearing are when weakness ruptures or comes off, the anti-lost joint of oil well no longer continues to fall in long string, can not cause damage and the formation damage of oil production equipment.Operating personnel find tubing string fracture or can carry out fishing after coming off, and now because tubing string does not drop to bottom oil well, the difficulty of fishing reduces greatly.
Accompanying drawing explanation
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.
Fig. 1 is the structure chart of the anti-lost joint of oil well of the utility model first embodiment;
Fig. 2 is the connected mode schematic diagram of reducer union and the first pipeline section and the second pipeline section;
Fig. 3 is the structure chart of the anti-lost joint of oil well of the utility model the 3rd embodiment;
Fig. 4 is the structure chart of the anti-lost joint of oil well of the utility model the 4th embodiment;
Fig. 5 is the structure chart of the anti-lost joint of oil well of the utility model the 5th embodiment.
Description of reference numerals:
11,21: anti-lost boss;
12,22: the first joint bodies;
13,23: guiding gutter;
14,24: the second joint bodies;
2: the first pipeline sections;
3: the second pipeline sections;
4: tubing string;
5: reducer union;
D1: the external diameter of anti-lost boss;
The internal diameter of the d2: the first pipeline section;
The internal diameter of the d3: the second pipeline section.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only 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.
Fig. 1 is the structure chart of the anti-lost joint of oil well of the utility model first embodiment, and as shown in Figure 1, the anti-lost joint of a kind of oil well, is arranged in the long string in oil production equipment.
Long string comprises: the first pipeline section 2 and the second pipeline section 3 be interconnected.
Wherein, the internal diameter d2 of the first pipeline section 2 is greater than the internal diameter d3 of the second pipeline section 3.
The anti-lost joint of oil well, comprising: anti-lost boss 11 and the first joint body 12.
Wherein, anti-lost boss 11, one end of anti-lost boss 11 is connected with the first joint body 12; The outside diameter d 1 of anti-lost boss 11 is greater than the internal diameter d3 of the second pipeline section 3.
First joint body 12, is connected with the end of the tubing string 4 of oil production equipment.
In the present embodiment, preferably, the end of tubing string 4 is provided with screw thread.
It should be noted that, the gauge size of the screw thread that different tubing strings is corresponding is different.Such as, the gauge size of the screw thread of the tubing string in Electric Submersible Pump Unit is not identical with the gauge size of the screw thread of the tubing string in deep-well oil pump.
Alternatively, anti-lost boss 11 can be set to cylindric, also can be set to square, and the utility model is not specifically limited the shape of anti-lost boss 11.
Alternatively, the connected mode of anti-lost boss 11 and the first joint body 12, can be welding, also can be one-body molded, not be specifically limited in the utility model to the connected mode of anti-lost boss and the first joint body.
In addition, in the present embodiment, the specific works principle of the anti-lost joint of oil well is: when the tubing string in oil production equipment is due to corrosion or when shaking wear and rupture or come off, the tubing string of the anti-lost joint of oil well and fracture falls simultaneously in the first pipeline section 2 of long string, when dropping to the second pipeline section 3, external diameter due to the anti-lost boss 11 of the anti-lost joint of oil well is greater than the internal diameter of the second pipeline section 3, therefore, the anti-lost joint of oil well is made to be stuck in long string no longer to fall, be stuck in the second pipeline section 3, thus also further prevent the tubing string rupturing or come off constantly to fall in long string, and then avoid the secondary damage to oil production equipment and formation damage.Meanwhile, difficulty and the cost of fishing string is also reduced.
In the present embodiment, due to by by anti-lost for oil well joint, be arranged in the long string in oil production equipment.Wherein, long string comprises: the first pipeline section be interconnected and the second pipeline section, and the internal diameter of the first pipeline section is greater than the internal diameter of the second pipeline section; The anti-lost joint of oil well, comprising: the first joint body, is connected with the end of the tubing string of oil production equipment; Anti-lost boss, one end of anti-lost boss is connected with the first joint body; The external diameter of anti-lost boss is greater than the internal diameter of the second pipeline section.Therefore, when the tubing string in oil production equipment is due to corrosion or when shaking wear and rupture or come off, the tubing string of the anti-lost joint of oil well and fracture falls simultaneously in the first pipeline section of long string, when dropping to the second pipeline section, external diameter due to anti-lost boss is greater than the internal diameter of the second pipeline section, thus the tubing string whereabouts further preventing fracture or come off, and then avoid secondary damage and the formation damage of oil production equipment.Meanwhile, operating personnel are in the fracture of discovery tubing string or can carry out fishing after coming off, and because the anti-lost joint of oil well and tubing string do not drop to bottom oil well, therefore, significantly reduce fishing difficulty and cost.
Further, in the second embodiment of the present utility model, on above-mentioned basis embodiment illustrated in fig. 1, the first pipeline section 2 can be connected by reducer union 5 with the second pipeline section 3.Wherein connected mode can as shown in Figure 2, and Fig. 2 is the connected mode schematic diagram of reducer union and the first pipeline section and the second pipeline section.
Alternatively, the first pipeline section is 7 inches of sleeve pipes.
Alternatively, the second pipeline section is 5.5 inches of sleeve pipes.
Further, in the present embodiment, the connected mode of the first pipeline section and the second pipeline section is not limited with this embodiment
It should be noted that, in the present embodiment, when the tubing string 4 in oil production equipment is due to corrosion or when shaking wear and rupture or come off, the second pipeline section 3 can block after falling by the anti-lost joint of oil well, causes the crude oil of anti-lost boss less than 11 can not upper reaches.
The anti-lost joint of oil well of the present utility model, mainly to be useful in submerged electric oil pump well and rod-pumped well in corresponding Electric Submersible Pump Unit and deep-well oil pump, the model of the first pipeline section and the second pipeline section and size and Electric Submersible Pump Unit and the supporting setting of deep-well oil pump.
It should be noted that, the anti-lost joint of the oil well in the utility model can also be applied in other oil wells, now, and the first pipeline section needing adaptive setting and corresponding oil well supporting and the model of the second pipeline section and size.
In the present embodiment, when the tubing string in oil production equipment is due to corrosion or when shaking wear and rupture or come off, the anti-lost joint of oil well and fracture or the tubing string come off fall simultaneously in the first pipeline section 2 of long string, when being stuck in the second pipeline section 3, external diameter due to the anti-lost boss 11 of the anti-lost joint of oil well is greater than the internal diameter of the second pipeline section 3, therefore, the anti-lost joint of oil well is made to be stuck in long string no longer to fall, thus also further prevent the tubing string rupturing or come off no longer to fall, and then avoid secondary damage and the formation damage of oil production equipment.Meanwhile, difficulty and the cost of fishing string is also reduced.Operating personnel can carry out fishing after the fracture of discovery tubing string, because the anti-lost joint of oil well and tubing string do not drop to bottom oil well, therefore, significantly reduce fishing difficulty and cost.
Fig. 3 is the structure chart of the anti-lost joint of oil well of the utility model the 3rd embodiment.On the basis of the first embodiment, as shown in Figure 3, in the anti-lost joint of oil well, guiding gutter 13 is also comprised; Guiding gutter 13 is arranged on anti-lost boss 11.
Alternatively, guiding gutter 13 is arranged along the external surface of anti-lost boss 11, and guiding gutter 13 bearing of trend becomes miter angle with the axis of anti-lost boss 11.
In addition, alternatively, the quantity of guiding gutter 13 is more than or equal to 1, and is less than or equal to 5.
Alternatively, guiding gutter 13 can be arranged in parallel and also can be crisscross arranged.
Alternatively, the degree of depth of guiding gutter 13 is less than the thickness of anti-lost boss 11.
It should be noted that, the quantity of guiding gutter is not limited with this embodiment, can carry out selection according to actual needs and arrange, such as, consider length and the thickness of the anti-lost joint of oil well, the factors such as application life, manufacture craft and cost.
In the present embodiment, because the feature of each oil well is different, the cost of fishing and difficulty are also different, therefore, for some tubing string because corrosion or vibrations wearing and tearing are in weakness fracture or after coming off, can abandon salvaging, directly original damaged tubing string be thrown away, continue to connect new tubing string and proceed oil producing operation.Now, crude oil can not affect oil producing operation progress by the guiding gutter 13 of setting on anti-lost boss 11 flow to pit shaft.
Fig. 4 is the structure chart of the anti-lost joint of oil well of the utility model the 4th embodiment.On the basis of the utility model first embodiment, as shown in Figure 4, the anti-lost joint of oil well also comprises, and the second joint body 14 is connected with the other end of anti-lost boss 11.
Alternatively, anti-lost boss 11 can be weld with the connected mode of the second joint body 14, also can be one-body molded, is not specifically limited in the utility model.
Alternatively, in order to be suitable for widely, the screw thread of the first joint body 12 and the second joint body 14 can adopt the type design of American Petroleum Institute API SPEC 5B.
In addition, the first joint body 12 is specifically as follows 3.5 inches of flat button screw threads, or is 2.875 inches of external upset (EU) button screw threads.And its model and size need and the string matching in oil production equipment.
In addition, the second joint body 14 is specifically as follows 2.875 inches of external upset (EU) button screw threads, or is 3.5 inches of flat button screw threads.And its model and size need and the string matching in oil production equipment.
It should be noted that, in the utility model, the first joint body 12 is not identical with size with the second joint body 14 model.
Alternatively, the first joint body is 3.5 inches of flat button screw threads, and the second joint body is 2.875 inches of external upset (EU) button screw threads.
Alternatively, the first joint body is 2.875 inches of external upset (EU) button screw threads, and the second joint body is 3.5 inches of flat button screw threads.
It should be noted that, in the present embodiment, when the tubing string 4 in oil production equipment is due to corrosion or when shaking wear and rupture or come off, the second pipeline section 3 can block after falling by the anti-lost joint of oil well, causes the crude oil of anti-lost boss less than 11 can not upper reaches.
In the present embodiment, the anti-lost joint of oil well is arranged simultaneously the first joint body and the second joint body, both gone for also going in deep-well oil pump in Electric Submersible Pump Unit, the scope of application is wider.It should be noted that, the anti-lost joint of the oil well in the present embodiment can also be used in other oil well, as long as the gauge size of the first joint body or the second joint body arranged according to other oil well.Meanwhile, because the external diameter of anti-lost boss is greater than the internal diameter of the second pipeline section.When the tubing string in oil production equipment is due to corrosion or when shaking wear and rupture or come off, the tubing string of the anti-lost joint of oil well and fracture falls simultaneously in the first pipeline section of long string, when dropping to the second pipeline section, external diameter due to anti-lost boss is greater than the internal diameter of the second pipeline section, therefore make the anti-lost joint of oil well be stuck in long string no longer to fall, damage and the formation damage of oil production equipment can not be caused.Simultaneously, operating personnel can carry out fishing after the fracture of discovery tubing string, because the anti-lost joint of oil well and tubing string do not drop to bottom oil well, thus also further prevent the tubing string of fracture no longer to fall, and then avoid secondary damage and the formation damage of oil production equipment.Meanwhile, difficulty and the cost of fishing string is also reduced.
Fig. 5 is the structure chart of the anti-lost joint of oil well of the utility model the 5th embodiment, and on the basis of the utility model the 4th embodiment, the anti-lost joint of oil well, also comprises, guiding gutter 23; Guiding gutter 23 is arranged on anti-lost boss 21.
Alternatively, guiding gutter 23 is arranged along the external surface of anti-lost boss 21, and guiding gutter 23 bearing of trend becomes miter angle with the axis of anti-lost boss 21.
In addition, alternatively, the quantity of guiding gutter 23 is more than or equal to 1, and is less than or equal to 5.
Alternatively, guiding gutter 23 can be arranged in parallel and also can be crisscross arranged.
Alternatively, the degree of depth of guiding gutter 23 is less than the thickness of anti-lost boss 21.
It should be noted that, the quantity of guiding gutter is not limited with this embodiment, can carry out selection according to actual needs and arrange, such as, consider length and the thickness of the anti-lost joint of oil well, the factors such as application life, manufacture craft and cost.
Alternatively, in order to be suitable for widely, the screw thread of the first joint body 22 and the second joint body 24 adopts the type design of American Petroleum Institute API SPEC 5B.
Alternatively, the first joint body is 3.5 inches of flat button screw threads, and the second joint body is 2.875 inches of external upset (EU) button screw threads.
Alternatively, the first joint body is 2.875 inches of external upset (EU) button screw threads, and the second joint body is 3.5 inches of flat button screw threads.
In the present embodiment, because the feature of each oil well is different, the cost of fishing and difficulty are also different, therefore, for some tubing string because corrosion or vibrations wearing and tearing are in weakness fracture or after coming off, can abandon salvaging, directly original damaged tubing string be thrown away, connect new tubing string and proceed oil producing operation.Now, crude oil can not affect oil producing operation progress by the guiding gutter of setting on anti-lost boss 21 flow to pit shaft.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, 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 each embodiment technical scheme of the utility model.
Claims (9)
1. the anti-lost joint of oil well, is arranged in the long string in oil production equipment, it is characterized in that,
Described long string comprises: the first pipeline section be interconnected and the second pipeline section, and the internal diameter of described first pipeline section is greater than the internal diameter of described second pipeline section;
The anti-lost joint of described oil well, comprising:
First joint body, is connected with the end of the tubing string of described oil production equipment;
Anti-lost boss, one end of described anti-lost boss is connected with described first joint body; The external diameter of described anti-lost boss is greater than the internal diameter of described second pipeline section.
2. the anti-lost joint of oil well according to claim 1, is characterized in that, also comprise guiding gutter; Described guiding gutter is arranged on described anti-lost boss.
3. the anti-lost joint of oil well according to claim 2, is characterized in that, also comprise: the second joint body, is connected with the other end of described anti-lost boss.
4. the anti-lost joint of oil well according to claim 2, is characterized in that, the quantity of described guiding gutter is more than or equal to 1, and is less than or equal to 5.
5. the anti-lost joint of the oil well according to claim 2 or 4, is characterized in that, described guiding gutter bearing of trend becomes miter angle with the axis of described anti-lost boss.
6. the anti-lost joint of oil well according to claim 3, is characterized in that, described first joint body is 3.5 inches of flat button screw threads, and described second joint body is 2.875 inches of external upset (EU) button screw threads.
7. the anti-lost joint of oil well according to claim 3, is characterized in that, described first joint body is 2.875 inches of external upset (EU) button screw threads, and described second joint body is 3.5 inches of flat button screw threads.
8., according to the arbitrary described anti-lost joint of oil well of claims 1 to 3, it is characterized in that, described first pipeline section is 7 inches of sleeve pipes.
9., according to the arbitrary described anti-lost joint of oil well of claims 1 to 3, it is characterized in that, described second pipeline section is 5.5 inches of sleeve pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420680206.9U CN204311983U (en) | 2014-11-11 | 2014-11-11 | Anti-drop joint for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420680206.9U CN204311983U (en) | 2014-11-11 | 2014-11-11 | Anti-drop joint for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204311983U true CN204311983U (en) | 2015-05-06 |
Family
ID=53134305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420680206.9U Expired - Fee Related CN204311983U (en) | 2014-11-11 | 2014-11-11 | Anti-drop joint for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204311983U (en) |
-
2014
- 2014-11-11 CN CN201420680206.9U patent/CN204311983U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20150506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |