CN201095981Y - Permanent magnetism short joint for well drilling - Google Patents
Permanent magnetism short joint for well drilling Download PDFInfo
- Publication number
- CN201095981Y CN201095981Y CNU2007201819059U CN200720181905U CN201095981Y CN 201095981 Y CN201095981 Y CN 201095981Y CN U2007201819059 U CNU2007201819059 U CN U2007201819059U CN 200720181905 U CN200720181905 U CN 200720181905U CN 201095981 Y CN201095981 Y CN 201095981Y
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- CN
- China
- Prior art keywords
- permanent magnet
- permanent magnetism
- main body
- pipe nipple
- well drilling
- 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 - Lifetime
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Abstract
The utility model relates to a tool used for petroleum natural gas or coal mine drilling, which is a permanent magnet pipe nipple used for drilling, and is composed of a main body (1), a permanent magnet A (2) and a permanent magnet B (3); the main body (1) is provided with a plurality of embedded grooves that are evenly distributed on the outer surface of the main body (1); the permanent magnet A (2) and the permanent magnet B (3) are mutually spaced and are embedded into the embedded grooves on the surface of the main body (1). The permanent magnet pipe nipple has the characteristics of small volume, light weight as well as convenient and rapid replacement of the permanent magnet.
Description
Technical field
The utility model relates to the instrument that petroleum gas or colliery drilling well are used, and the instrument that particularly a kind of usefulness two wells are communicated with belongs to the downhole tool class.
Background technology
In recent years, world energy sources day is becoming tight, and coal bed gas is subjected to increasing domestic enterprise and payes attention to.Coal bed gas belongs to unconventional natural gas resource, is a kind of generation, is stored in the coal seam and is adsorbed in the gas of coal particle surface, is commonly called as coal mine gas.Coal bed gas is a kind of calorific value height, the free of contamination clean air energy, can be used for fuel used to generate electricity, industrial fuel, industrial chemicals and resident living fuel.At present, coal bed gas as one independently the upright body of the new mineral of the energy among energy ranks.Along with the exploitation to coal bed gas, various technology more and more are applied in the development process, and wherein the multi-branched horizontal well technology is widely applied in the exploitation of coal bed gas.Two well connection technologies are one of coal bed gas multi-branched horizontal well core technologies, determine in the handshaking procedures that the technology of drill bit and target well relative position relation is nearly drill bit electromagnetic positioning method.The hardware of nearly drill bit electromagnetic positioning law technology comprises permanent magnetism pipe nipple and three magnetic resistance sound-pipes.When the permanent magnetism pipe nipple that rotates in the main borehole enters in the investigative range of sound-pipe in the cave well of pre-connection, sound-pipe is gathered the field signal intensity of permanent magnetism pipe nipple, accurately calculate the distance between two wells and the position of current drill bit by software, thereby realize the connection of two wells.
Summary of the invention
The utility model is to provide a kind of downhole tool that main borehole and cave well two wells are communicated with when being used in the multi-branched horizontal well drilling well.
The technical scheme that the utility model adopted is: mainly be made up of body 1, permanent magnet A2 and permanent magnet B3.Body 1 two ends are drill string joint standard thread, and wherein the upper end is a box, and the lower end is a pin thread, conveniently are connected with other drilling tools, and main effect is to provide carrier for permanent magnet 2.Have several embedded grooves to be evenly distributed on the external surface of body 1 on the body 1, permanent magnet A2 and permanent magnet B3 space embed in the embedded groove on body 1 surface, and it mainly acts on and provides a constant measuring magnetic field for the treatment of.
Characteristics of the present utility model are: volume is little, and is in light weight, and it is convenient and swift to change permanent magnet.
Description of drawings
Fig. 1 permanent magnetism pipe nipple structural representation.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further, as shown in Figure 1, mainly forms by body 1, permanent magnet A2 and permanent magnet B3.Body 1 two ends are drill string joint standard thread, and wherein the upper end is a box, and the lower end is a pin thread, conveniently are connected with other drilling tools, and main effect is to provide carrier for permanent magnet 2.Have several embedded grooves to be evenly distributed on the external surface of body 1 on the body 1, permanent magnet A2 and permanent magnet B3 space embed in the embedded groove on body 1 surface, and it mainly acts on and provides a constant measuring magnetic field for the treatment of.
When being communicated with operation, box end on drill bit top with the permanent magnetism pipe nipple is connected, put into main borehole, when drill bit enters the scope of cave borehole measurement instrument, the permanent magnetism pipe nipple constantly discharges constant magnetic field and is detected, the constructor just adjusts the position and the well track of current drill bit according to the magnetic field intensity that detects, and reaches the purpose that two wells are communicated with.
Claims (1)
1, a kind of drilling well permanent magnetism pipe nipple is characterized in that: mainly be made up of body (1), permanent magnet A (1) and permanent magnet B (2); Have several embedded grooves to be evenly distributed on the external surface of body (1) on the body (1), permanent magnet A (2) and permanent magnet B (3) space embed in the embedded groove on body (1) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201819059U CN201095981Y (en) | 2007-10-10 | 2007-10-10 | Permanent magnetism short joint for well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201819059U CN201095981Y (en) | 2007-10-10 | 2007-10-10 | Permanent magnetism short joint for well drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201095981Y true CN201095981Y (en) | 2008-08-06 |
Family
ID=39923032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201819059U Expired - Lifetime CN201095981Y (en) | 2007-10-10 | 2007-10-10 | Permanent magnetism short joint for well drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201095981Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799558A (en) * | 2010-03-19 | 2010-08-11 | 中国石油大学(北京) | Electromagnetic surveying system while drilling of adjacent-well parallel intervals |
| CN101979829A (en) * | 2010-10-29 | 2011-02-23 | 南昌航空大学 | Underground magnetic navigation method |
| CN101982734A (en) * | 2010-10-29 | 2011-03-02 | 南昌航空大学 | Calculation method for underground magnetic navigation |
| CN101713287B (en) * | 2009-11-04 | 2012-10-24 | 中国石油大学(北京) | Magnetic short section used for measuring distance between adjacent wells by electromagnetic detection while drilling |
| CN102778657A (en) * | 2011-05-08 | 2012-11-14 | 中国石油化工集团公司 | Magnetic pipe nipple testing device |
| CN103835663A (en) * | 2014-03-05 | 2014-06-04 | 中国石油大学(华东) | Anti-collision drilling assembly for vertical sections in dense cluster well groups and anti-collision method thereof |
| CN105113988A (en) * | 2015-08-21 | 2015-12-02 | 于润桥 | Permanent magnet nipple |
| CN111058778A (en) * | 2019-11-07 | 2020-04-24 | 西安石油大学 | Self-generating wireless signal transmission nipple |
-
2007
- 2007-10-10 CN CNU2007201819059U patent/CN201095981Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713287B (en) * | 2009-11-04 | 2012-10-24 | 中国石油大学(北京) | Magnetic short section used for measuring distance between adjacent wells by electromagnetic detection while drilling |
| CN101799558A (en) * | 2010-03-19 | 2010-08-11 | 中国石油大学(北京) | Electromagnetic surveying system while drilling of adjacent-well parallel intervals |
| CN101799558B (en) * | 2010-03-19 | 2012-08-29 | 中国石油大学(北京) | Electromagnetic surveying system while drilling of adjacent-well parallel intervals |
| CN101979829A (en) * | 2010-10-29 | 2011-02-23 | 南昌航空大学 | Underground magnetic navigation method |
| CN101982734A (en) * | 2010-10-29 | 2011-03-02 | 南昌航空大学 | Calculation method for underground magnetic navigation |
| CN102778657A (en) * | 2011-05-08 | 2012-11-14 | 中国石油化工集团公司 | Magnetic pipe nipple testing device |
| CN102778657B (en) * | 2011-05-08 | 2015-04-29 | 中国石油化工集团公司 | Magnetic pipe nipple testing device |
| CN103835663A (en) * | 2014-03-05 | 2014-06-04 | 中国石油大学(华东) | Anti-collision drilling assembly for vertical sections in dense cluster well groups and anti-collision method thereof |
| CN105113988A (en) * | 2015-08-21 | 2015-12-02 | 于润桥 | Permanent magnet nipple |
| CN105113988B (en) * | 2015-08-21 | 2018-02-16 | 于润桥 | Permanent magnetism short joint |
| CN111058778A (en) * | 2019-11-07 | 2020-04-24 | 西安石油大学 | Self-generating wireless signal transmission nipple |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081212 Address after: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee after: Western Drilling Kelamayi Drilling Technology Institute Address before: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee before: Research Inst of Drilling Technology, Xinjiang Petroleum Administration |
|
| ASS | Succession or assignment of patent right |
Owner name: WEST DRILLING KARAMAY DRILLING CRAFT RESEARCH INST Free format text: FORMER OWNER: DRILLING WELL TECHNOLOGY INSTITUTE, PETROLEUM ADMINISTRATION BUREAU, XINJIANG Effective date: 20081212 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080806 |
|
| CX01 | Expiry of patent term |