| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_137ad4f406af5b0333fbe8694f2ed4a9 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B47-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B45-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B19-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B19-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B45-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B47-04 |
| filingDate |
1991-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74aebe0302f43728ffbb5a915c7b5eef
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e1f9da8e0eb2dd3db937a2216fc2d20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4018832cb637bbc5de68df26b739aaab |
| publicationDate |
1991-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2039406-A1 |
| titleOfInvention |
Video system and method for determining and monitoring the depth of a bottomhole assembly within a borehole |
| abstract |
ABSTRACT OF THE DISCLOSURE Video systems and methods for determining the length of objects to be inserted in a wellbore, and for summing the lengths to obtain an accurate determination of the depth at which a bottomhole assembly is located at any given time. The video systems and methods of the present invention are also used in conjunction with hookload and traveling block location information to determine bottomhole assembly depth while drilling, or tripping-in or tripping out of a well. Also disclosed is a method of accurately determining the transition a drillstring undergoes and its associated movement when passing from in-slips to out-of-slips. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114263452-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113188465-A |
| priorityDate |
1990-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |