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Three dimensional a shapes
| Content Provider | Semantic Scholar |
|---|---|
| Author | Edelsbrunner, Herbert Cke, E. P. M. |
| Copyright Year | 1994 |
| Abstract | A safety valve to be lowered into a well and adapted to close off the flow of production fluid upwardly from the well, and which is operated by an actuating cable extending upwardly toward the surface of the earth, with the cable or other element being preferably maintained under tension and acting to hold the valve in open condition so long as the tensioned condition exists, but to release the valve for automatic closing movement in the event of breakage of the cable or release of its tensioned condition for any other reason. The safety valve includes a ball type valve element which moves downwardly in response to upward movement of the main actuating element, and is turned between open and closed conditions by such downward movement of the ball valve. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.cs.jhu.edu/~misha/Fall05/09.20.05.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
