http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114607361-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c581cd772ee18ccbe7910d6800ea8075 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B47-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-13 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B47-06 |
| filingDate | 2022-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a84c5680f28741855a3f095f42040a08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e57cddeadab0bb2a4e3b317f25cc3a78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_284fe8c973e253f903388f62db3a4e86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af731a51f74248b682a3a8dc4e6eb4da http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e86f6066ec43d04d85e8db76d0b3fe50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19053d1fef4d824f52b262b82b126407 |
| publicationDate | 2022-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114607361-A |
| titleOfInvention | A Method for Simultaneously Determining Gas Pressure in Near-Distance Coal Seam Groups |
| abstract | The invention provides a method for simultaneously measuring the gas pressure of a coal seam group in a short distance. The steps are as follows: (1) constructing a downwardly inclined pressure measuring borehole; (2) lowering the first coal seam pressure measuring pipe, and waiting for the pipe head to reach the lowest coal seam (3) Lower the second coal seam pressure measuring pipe, and when the pipe head reaches the second coal seam, lower the baffle and polyurethane sealing material; After the plugging material solidifies, install the gas pressure gauge; (4) lower the pressure measuring pipe of the nth coal seam, and when the pipe head reaches the nth coal seam, lower the baffle plate and the polyurethane plugging material; after the plugging material solidifies, install the gas pressure gauge ; (5) Inject high water quick-setting material into the borehole; (6) The gas pressure gauge is connected by optical fiber and connected with the ground control system. The present invention can simultaneously test the pressure of two or more adjacent coal seams in a coal seam group only by constructing one pressure measuring hole, and has the advantages of cost saving and accurate testing. |
| priorityDate | 2022-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.