CN207863879U - A kind of small casing pipe well Drilling rod for well-drilling - Google Patents
A kind of small casing pipe well Drilling rod for well-drilling Download PDFInfo
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- CN207863879U CN207863879U CN201721524358.XU CN201721524358U CN207863879U CN 207863879 U CN207863879 U CN 207863879U CN 201721524358 U CN201721524358 U CN 201721524358U CN 207863879 U CN207863879 U CN 207863879U
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Abstract
本实用新型公开的是石油工业修井作业使用的一种小套管井用修井钻杆，具有足够的抗拉和抗扭强度和良好的抗疲劳性能。本修井钻杆包括钻杆本体，钻杆本体的两端分别是内螺纹接头端和外螺纹接头端，钻杆本体的外径尺寸设定在59mm—62mm之间，内螺纹接头端和外螺纹接头端的外径尺寸设定在71mm—76mm之间。本实用新型在不降低下井钻杆管柱连接强度的前提下，增加了钻杆外径与套管内径之间的间隙，方便进行各类施工作业，能够满足了井下油水井大修、作业侧钻、打捞钻杆及地质水井勘探等要求。
The utility model discloses a workover drill pipe for small cased wells used in oil industry workover operations, which has sufficient tensile and torsional strength and good fatigue resistance. The workover drill pipe includes a drill pipe body. The two ends of the drill pipe body are the internal thread joint end and the external thread joint end respectively. The outer diameter of the drill pipe body is set between 59mm-62mm. The outer diameter of the threaded joint end is set between 71mm and 76mm. The utility model increases the gap between the outer diameter of the drill pipe and the inner diameter of the casing on the premise of not reducing the connection strength of the downhole drill pipe string, facilitates various construction operations, and can meet the requirements of downhole oil and water well overhaul and operation sidetracking , salvage drill pipe and geological water well exploration and other requirements.
Description
技术领域technical field
本实用新型涉及的是一种石油行业的修井作业工具，特别是一种小套管井用修井钻杆，具有足够的抗拉和抗扭强度和良好的抗疲劳性能。The utility model relates to a workover tool in the petroleum industry, in particular to a workover drill pipe for small cased wells, which has sufficient tensile and torsional strength and good fatigue resistance.
技术背景technical background
小套管开采技术是近些年石油行业推广应用的新技术，目前尚存在配套工艺不够成熟完善的问题，通用的API标准钻杆难以满足配套修井要求，在现有的配套钻杆中，标准的23/8″钻杆接头外径85.7mm，无法满足下入Φ95mm侧钻井套管中的要求。The small casing mining technology is a new technology popularized and applied in the petroleum industry in recent years. At present, there is still a problem that the matching technology is not mature enough. The general API standard drill pipe is difficult to meet the matching workover requirements. Among the existing supporting drill pipes, The standard 2 3 / 8 ″ drill pipe joint has an outer diameter of 85.7mm, which cannot meet the requirements for running into Φ95mm sidetracking casing.
发明内容Contents of the invention
本实用新型的目的是提供一种小套管井用修井钻杆，方便下入小套管内施工，解决小套管井修井钻杆匹配的问题，完善小钻杆配套工艺。The purpose of the utility model is to provide a workover drill pipe for small cased wells, which can be conveniently lowered into the small casing for construction, solve the problem of matching the workover drill pipes for small cased wells, and improve the matching process of small drill pipes.
本实用新型的技术解决方案是：一种小套管井用修井钻杆包括钻杆本体，钻杆本体的两端分别是内螺纹接头端和外螺纹接头端，钻杆本体的外径尺寸设定在59mm—62mm之间，内螺纹接头端和外螺纹接头端的外径尺寸设定在71mm—76mm之间。The technical solution of the utility model is: a workover drill pipe for small cased wells includes a drill pipe body. It is set between 59mm-62mm, and the outer diameter of the inner threaded joint end and the outer threaded joint end is set between 71mm-76mm.
本实用新型的有益效果是：本实用新型在不降低下井钻杆管柱连接强度的前提下，优化了钻杆本体和两端内螺纹接头端和外螺纹接头端的外径尺寸，增加了钻杆外径与套管内径之间的间隙，方便进行各类施工作业。经过理化试验证明，本实用新型具有足够的抗拉和抗扭强度和良好的抗疲劳性能，能够满足了井下油水井大修、作业侧钻、打捞钻杆及地质水井勘探等要求，能够适应小套管井内修井工艺的要求，为修井施工提供了保障，完善了小钻杆配套工艺。The beneficial effects of the utility model are: the utility model optimizes the outer diameter of the drill pipe body, the inner thread joint end and the outer thread joint end at both ends without reducing the connection strength of the drill pipe string in the well, and increases the diameter of the drill pipe. The gap between the outer diameter and the inner diameter of the casing is convenient for various construction operations. Physical and chemical tests have proved that the utility model has sufficient tensile and torsional strength and good fatigue resistance, and can meet the requirements of downhole oil and water well overhaul, operation sidetracking, fishing drill pipe and geological water well exploration, etc. The requirements of the workover technology in the tube well provide guarantee for the workover construction and improve the supporting technology of the small drill pipe.
附图说明Description of drawings
图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
具体实施方式Detailed ways
以下结合附图详述本实用新型，并非限制本实用新型的保护范围。以下所述仅为本实用新型的较佳实施例，其他运用本实用新型的等效变化，均应属于本实用新型的保护范围。The utility model is described in detail below in conjunction with the accompanying drawings, not limiting the protection scope of the utility model. The following descriptions are only preferred embodiments of the present utility model, and other equivalent changes utilizing the present utility model shall all belong to the protection scope of the present utility model.
参见图1，一种小套管井用修井钻杆包括钻杆本体2，钻杆本体2的两端分别是内螺纹接头端1和外螺纹接头端3，钻杆本体2的外径尺寸设定在59mm—62mm之间，如：59.5mm、60.3mm等等。内螺纹接头端1和外螺纹接头端3的外径尺寸设定在71mm—76mm之间，如73mm、75mm等等。Referring to Fig. 1, a workover drill pipe for a small cased well includes a drill pipe body 2, the two ends of the drill pipe body 2 are respectively an internally threaded joint end 1 and an externally threaded joint end 3, and the outer diameter of the drill pipe body 2 is set to Set between 59mm-62mm, such as: 59.5mm, 60.3mm and so on. The outer diameters of the internally threaded joint end 1 and the externally threaded joint end 3 are set between 71mm-76mm, such as 73mm, 75mm and so on.
所述钻杆本体2的优选外径尺寸设定在59.5mm—61.5mm之间，如：59.5mm、60.3mm等等。内螺纹接头端1和外螺纹接头端3的优选外径尺寸设定在72mm—74mm之间，如72.5mm、73mm等等。The preferred outer diameter of the drill pipe body 2 is set between 59.5mm-61.5mm, such as: 59.5mm, 60.3mm and so on. The preferred outer diameters of the internally threaded joint end 1 and the externally threaded joint end 3 are set between 72mm-74mm, such as 72.5mm, 73mm and so on.
所述内螺纹接头端1和外螺纹接头端3的连接螺纹是YB235-70戊种螺纹。The connecting threads of the internally threaded joint end 1 and the externally threaded joint end 3 are YB235-70 type E threads.
本实用新型采用平端摩擦焊接工艺，对焊内螺纹接头端1和外螺纹接头端3。The utility model adopts a flat-end friction welding process to butt-weld the internally threaded joint end 1 and the externally threaded joint end 3 .
上面叙述的实施例仅仅为典型实施例，但本实用新型不仅限于这些实施例，本领域的技术人员可以在不偏离本实用新型的精神和启示下做出修改。本文所公开的方案可能存在很多变更、组合和修改，且都在本实用新型的范围内，因此，保护范围不仅限于上文的说明。The embodiments described above are only typical embodiments, but the utility model is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and enlightenment of the utility model. There may be many alterations, combinations and modifications in the solutions disclosed herein, all of which are within the scope of the present invention. Therefore, the scope of protection is not limited to the above description.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524358.XU CN207863879U (en) | 2017-11-15 | 2017-11-15 | A kind of small casing pipe well Drilling rod for well-drilling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524358.XU CN207863879U (en) | 2017-11-15 | 2017-11-15 | A kind of small casing pipe well Drilling rod for well-drilling |
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| CN207863879U true CN207863879U (en) | 2018-09-14 |
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| CN201721524358.XU Expired - Fee Related CN207863879U (en) | 2017-11-15 | 2017-11-15 | A kind of small casing pipe well Drilling rod for well-drilling |
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| CN (1) | CN207863879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456644A (en) * | 2020-04-10 | 2020-07-28 | 潘勇 | Petroleum drill pipe |
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2017
- 2017-11-15 CN CN201721524358.XU patent/CN207863879U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456644A (en) * | 2020-04-10 | 2020-07-28 | 潘勇 | Petroleum drill pipe |
| CN111456644B (en) * | 2020-04-10 | 2021-12-14 | 杨林 | Petroleum drill pipe |
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| 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: 20180914 Termination date: 20201115 |