METAL PROTECTOR FOR THREADED EXTREMITIES OF WELL DRILLING TUBES |
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| 申请号 | EP99952811.0 | 申请日 | 1999-11-04 | 公开(公告)号 | EP1146271A2 | 公开(公告)日 | 2001-10-17 |
| 申请人 | Carrano Castro, Angel Gabriel Amadeo; | 发明人 | Carrano Castro, Angel Gabriel Amadeo; | ||||
| 摘要 | This invention refers to metallic protectors for threaded ends of pipe joints. Used for drilling of oil, gas and geothermal wells, which protect the threads and seals of the assemblys joints from impact during transportation, handling and maneuvering in the wells, and at the same time they eliminate the use of the cardboard washer which is only used during the delivery of the product, and being the seal exposed to impacts during maneuvering performed in the wells, and considering that the cardboard, when it deteriorates, does not provide the same protection against impact, as steel provides. | ||||||
| 权利要求 | |||||||
| 说明书全文 | The invention refers to a metallic protector for threads and seals, fabricated with calibrated carbon steel plate, to be utilized as a protection against impact to which the pipe assembly joints are exposed to when it is transported, and within the well itself. At the present time, there exist in the market metallic protectors which protect the thread and offer a partial protection to the seal of the drill pipe assembly joints, with a cardboard washer, as it is shown in Figure No. 2 (2) and Figure No. 4 (4). Therefore this product has been designed to offer protection to the joint seal, with simple innovations and at a low cost. At the same time this product eliminates the use of the compressed carboard washer which, is used nowadays, which will eliminate the cost of the same (washers) and the inconvenience that they are only of use for transportation, and are not able to be reused in the wells. These protectors can be used in joints and tools with threads of class "IF", "NC", "REG", "FH", "XH" and all of those using a frontal seal. As shown in Figure No. 1 (1), the innovation consists in sizing the dimension of the bell product in such a way. It will be almost equal to the external diameter of the joint, adding to it at the same time han internal bevel which will seat on the joint bevel. This innovation consists in sizing the dimension of the edge of the product in such a manner, that it exceeds the diameter of the bevel, adding to it at the same time a seat profile equal to or similar with the degrees to which the bevel joint was machined, as it is shown in Figure No. 3 (3). Having sufficiently described my invention, I consider it as a novelty and therefore I claim as of my exclusive property what is contained in the following clauses. |
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