CN202417373U - Underground cutter - Google Patents
Underground cutter Download PDFInfo
- Publication number
- CN202417373U CN202417373U CN201120567325XU CN201120567325U CN202417373U CN 202417373 U CN202417373 U CN 202417373U CN 201120567325X U CN201120567325X U CN 201120567325XU CN 201120567325 U CN201120567325 U CN 201120567325U CN 202417373 U CN202417373 U CN 202417373U
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- CN
- China
- Prior art keywords
- cutter
- head
- rotary cutting
- casing
- cutting head
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- 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 - Lifetime
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Abstract
The utility model relates to an underground cutter, comprising a cutter casing, a rotary cutting head, a sleeve casing collar locator, an electric cable head tensionmeter and a rotary connector, wherein the cutter collar is provided with an anchor rod used for fixing the underground cutter inside an oil pipe; the rotary cutting head is composed of a head part and a rod part, a rod part of the rotary cutting head is arranged in the cutter casing in a penetration manner, the head part of the rotary cutting head is located at the front end of the cutter sleeve, and the rotary cutting head is provided with a hard alloy tool nose; the casing coupling locator is connected with the rear end of the rod part of the rotary cutting head; the electric cable head tensionmeter is connected with the rear end of the casing coupling locator; and the rotary connector is connected with the rear end of the electric cable head tensionmeter. During cutting, the underground cutter is free from the utilization of explosives or dangerous chemicals. The underground cutter not only is controllable but also has the most complete underground cutting function. Because the cutting diameter is always under control, the underground cutter is the ideal choice for the operator. When the casing is completely cut off, an engineer can stop cutting so as to prevent the damage to a material behind the casing.
Description
Technical field
The utility model relates to a kind of down-hole cutter, belongs to the cutter technical field.
Background technology
The down-hole cutter is a kind of high-tech special equipment that is used for cutting diameter most of type downhole tubular goods/drilling rod/sleeve pipe within the specific limits.Meet the card problem for present drilling rod, what often adopt is explosive or hazardous chemical, and this often can not implement owing to abominable hole condition.
The utility model content
In view of above-mentioned, the purpose of the utility model provides a kind of down-hole cutter, and it can be controlled the cutting flow process by the engineer fully.This controllability can be guaranteed the cutting operation of entirely accurate, and these be to use have dangerous chemicals or explosive can't realize.
For achieving the above object, the utility model adopts following technical scheme:
A kind of down-hole cutter is characterized in that comprising: the cutter sleeve pipe which is provided with two groups and is used for the down-hole cutter is fixed on the inner anchor pole of oil pipe; Rotary cutting head is made up of head and bar portion one, and the bar portion of rotary cutting head is arranged in the cutter sleeve pipe, and the head of rotary cutting head is positioned at the front end of cutter sleeve pipe, and this rotary cutting head has hard alloy cutter bit; Casing collar locator (CCL) is connected the rear end of the bar portion of said rotary cutting head; The cable head tensiometer is connected the rear end of said casing collar locator (CCL); Swivel joint is connected the rear end of said cable head tensiometer.
The beneficial effect of the utility model is:
When cutting, the down-hole cutter does not use explosive or hazardous chemical.This instrument not only has controllability, and has the most neat down-hole cutting function.Because cutting diameter is controlled all the time, so the still choosing of the ideal of these operations of this product.When sleeve was cut, the engineer can stop cutting, to avoid causing damage to being positioned at sleeve material after one's death.
Description of drawings
Fig. 1 forms sketch map for the utility model structure.
The specific embodiment
The utility model provides a kind of down-hole cutter, comprising: the cutter sleeve pipe which is provided with two groups and is used for the down-hole cutter is fixed on the inner anchor pole of oil pipe; Rotary cutting head is made up of head and bar portion one, and the bar portion of rotary cutting head is arranged in the cutter sleeve pipe, and the head of rotary cutting head is positioned at the front end of cutter sleeve pipe, and this rotary cutting head has hard alloy cutter bit; Casing collar locator (CCL) is connected the rear end of the bar portion of said rotary cutting head; The cable head tensiometer is connected the rear end of said casing collar locator (CCL); Swivel joint is connected the rear end of said cable head tensiometer.
Below in conjunction with the accompanying drawing introduction.
As shown in Figure 1, the down-hole cutter is a kind of safe type electric oil pipe/sleeve pipe/drilling rod cutting tool.It comprises:
Casing collar locator (CCL) 3 (CCL joint) is connected the rear end of cutter sleeve pipe 7;
Cable head tensiometer 2 is connected the rear end of casing collar locator (CCL) 3;
Swivel joint 1 is connected the rear end of cable head tensiometer 2.
Cutter is positioned through anchor pole in the pipeline of required cutting, makes that cutting head and pipeline keep opening rotary cutting head with one heart; It is rotated with certain rotating speed; Carbide bit is removed pipeline material under feed arrangement drives, and reaches the effect with the pipeline cutting.
Casing collar locator (CCL) 3, cable head tensiometer 2 and swivel joint 1 all are used to help the Cutting Control operation.Cutter is transferred to through cable in the sleeve pipe of required cutting, and casing collar locator (CCL) is used for locating the position of required cutting; The cable stretch meter is used to measure the tension force of cutter; Casing collar locator (CCL) and the acting in conjunction of cable stretch meter guarantee that cutter can precisely cut; The effect of swivel joint is in pipeline, to transfer in the process at cutter, prevents that cable distortion from bending.
The utility model down-hole cutter is easy to select and operation.After affirmation needs the material of cutting, the suitable model of selector trap pipe, oil pipe or oil well condition.Anchor pole can be changed in a few minutes.The operation of this instrument is quite directly perceived, before carrying out operation, after the operation detection, it is carried out further detection of electrons.This instrument is transferred to desired depth,, guarantee the correct position of required cutting in the operation place tool using string CCL data calibration degree of depth.
Before operation tool is gone into the well, it is carried out further detection of electrons.This instrument is gone into the well to desired depth, and when cutting point of a knife when reaching this degree of depth, the engineer is through the Ground Control panel operation, controls anchor pole according to scale numerical value in advance and opens size, guarantee to measure act on tube wall accurate anchor pole power.Anchor pole plays two kinds of effects: instrument is firmly inner at oil pipe, and when carrying out cutting operation, set upright cutting head.Engineer's operation begins cutting, and after cutting is accomplished, the engineer will stop cutting head to continue to move ahead, and begin its contraction.After this operation is accomplished, can make anchor pole lax, and make it be back to starting point in the body of tool.
This product is used to cut oil pipe/sleeve pipe/drilling rod, in operating process, can accomplish positioning action simultaneously.In addition, the instrument cutting accurately can be avoided the situation appearance of cutting more or cutting less in cutting process.
Claims (2)
1. down-hole cutter is characterized in that comprising:
The cutter sleeve pipe which is provided with the anchor pole that is used for the down-hole cutter is fixed on oil pipe inside;
Rotary cutting head is made up of head and bar portion one, and the bar portion of rotary cutting head is arranged in the cutter sleeve pipe, and the head of rotary cutting head is positioned at the front end of cutter sleeve pipe, and this rotary cutting head has hard alloy cutter bit;
Casing collar locator (CCL) is connected the rear end of the bar portion of said rotary cutting head;
The cable head tensiometer is connected the rear end of said casing collar locator (CCL);
Swivel joint is connected the rear end of said cable head tensiometer.
2. down-hole as claimed in claim 1 cutter is characterized in that:
The cutter sleeve pipe is provided with two groups and is used for the down-hole cutter is fixed on the inner anchor pole of oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120567325XU CN202417373U (en) | 2011-12-30 | 2011-12-30 | Underground cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120567325XU CN202417373U (en) | 2011-12-30 | 2011-12-30 | Underground cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417373U true CN202417373U (en) | 2012-09-05 |
Family
ID=46742146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120567325XU Expired - Lifetime CN202417373U (en) | 2011-12-30 | 2011-12-30 | Underground cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417373U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370231A (en) * | 2014-08-22 | 2016-03-02 | 中国石油化工股份有限公司 | Cutting method for tubular column in oil-gas well |
| WO2017084226A1 (en) * | 2015-11-19 | 2017-05-26 | 北京美高科技发展有限公司 | Cable-type electrohydraulic control pipe cutting tool |
| CN108291430A (en) * | 2015-12-08 | 2018-07-17 | 韦尔泰克有限公司 | Downhole cable machining tool tubing string |
| CN114607303A (en) * | 2020-12-09 | 2022-06-10 | 中海油能源发展股份有限公司 | Electrically-driven underground oil pipe internal cutting tool |
-
2011
- 2011-12-30 CN CN201120567325XU patent/CN202417373U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370231A (en) * | 2014-08-22 | 2016-03-02 | 中国石油化工股份有限公司 | Cutting method for tubular column in oil-gas well |
| WO2017084226A1 (en) * | 2015-11-19 | 2017-05-26 | 北京美高科技发展有限公司 | Cable-type electrohydraulic control pipe cutting tool |
| CN108291430A (en) * | 2015-12-08 | 2018-07-17 | 韦尔泰克有限公司 | Downhole cable machining tool tubing string |
| CN114607303A (en) * | 2020-12-09 | 2022-06-10 | 中海油能源发展股份有限公司 | Electrically-driven underground oil pipe internal cutting tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |