http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111396025-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B44-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06Q50-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B12-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B44-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B47-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06Q50-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B12-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B44-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B47-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B44-00 |
| filingDate | 2020-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111396025-B |
| titleOfInvention | Managed pressure drilling intelligent drilling control, drilling abnormal identification and processing method and system |
| abstract | The invention discloses a managed pressure drilling intelligent drilling control, drilling abnormal identification and processing method and system in the technical field of managed pressure drilling. The steps of the method include: S1: and downhole tool pressure consumption calculation scale, to calculate the actual bottom hole pressure value; S2, according to the actual bottom hole pressure value and bottom hole pressure safety margin value, calculate the surface back pressure value to be adjusted; S3, according to the According to the surface back pressure value to be adjusted, the bottom hole pressure can be increased or decreased, and the automatic drilling control of the managed pressure drilling system can be realized. The present invention proposes a method of using field drilling data, calculating the bottom hole pressure in real time, correcting the actual formation pore pressure and formation fracture pressure in real time, and calculating the ground back pressure value in real time according to the drilling design requirements, and sending the data to the choke valve PLC in real time , to achieve self-adaptive, accurate and intelligent bottom hole pressure standardization control. |
| priorityDate | 2020-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419563756 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID5313634 |
Total number of triples: 22.