| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a173c323cf242884b4a1bf8491669de3 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01M3-223
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B47-117
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B47-11 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01M3-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B47-10 |
| filingDate |
1984-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b22a684914d92170a995fb1c0587405
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_150374040f6445b7179bef6d8dda0367
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a38ae73a5f3e3facd66a6467e50a1023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71098f8e80991582275cd201a6b71d6d |
| publicationDate |
1984-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-8402978-A1 |
| titleOfInvention |
Method and apparatus for leak testing of pipe |
| abstract |
A method of testing pipe sections at an oil rig floor by means of an internal pipe testing tool (7) and a pressurized gas containing helium in a ratio of helium to a carrier gas of at least about 1:2856 by volume. The gas is pressurized in a hydraulic accumulator (2) remote from the rig floor. The pressurized gas actuates the test tool (7) at substantially the same pressure as is used for testing the pipe section (10). A flexible enclosure (12) confines the test gas which leaks from the pipe section (10). The enclosure (12) defines a substantially annular chamber (48) around the area of the pipe section (10) to be tested to confine leakage test gas to prevent its dissipation into the atmosphere. An aperture (62) is provided in the enclosure (12) to permit a sensing probe to be inserted into the annular chamber (48) between the enclosure (12) and the pipe section (10) to sense the presence of test gas. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2019389030-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0275467-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/NL-1017974-C2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4557139-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0505721-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0186952-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0544341-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0544341-A3 |
| priorityDate |
1983-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |