http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112795373-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-508 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-516 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-516 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-508 |
| filingDate | 2021-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2023-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2023-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112795373-B |
| titleOfInvention | Soluble temporary plugging agent for fracturing at different temperatures, temporary plugging ball and preparation method thereof |
| abstract | The present invention and the physical and chemical plugging technology in the field of fracturing fluid for oil and gas field reconstruction specifically relate to a soluble temporary plugging agent for fracturing at different temperatures, a temporary plugging ball and a preparation method thereof. In order to improve the thermal stability of biodegradable polyester materials, 16‑46% polycaprolactone, 10‑30% polyglycolic acid, 20‑30% polylactic acid, 4‑17% polybutyric acid are used Butylene glycol ester, chain extender triglycidyl isocyanurate, and 3% nano-silicon dioxide are used to synthesize a new type of degradable polyester material; by changing the ratio of each raw material, the degradation temperature of the material can be adjusted to adapt to different wells Degradation requirements at bottom temperature. Compared with traditional biodegradable materials, the developed degradable temporary plugging ball overcomes the temperature resistance and mechanical strength of traditional biodegradable materials by adjusting the molecular structure and adding nanomaterials, breaking through the traditional biodegradable materials that do not have low temperature dissolution and The problem is that the temperature range is narrow, and the synthesis process of the invention is simple, the source of raw materials is wide, and the cost is low. |
| priorityDate | 2021-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.