Monitoring, prevention and management method for preventing drilling pump from pump suffocation and misoperation, and pump pressure protection system therefor
US11391103B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2019 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Sep 3, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B51/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed are a monitoring, prevention and management method for preventing a drilling pump from pump suffocation and misoperation, and a pump pressure protection system therefor. The monitoring method may comprise mounting a standpipe pressure sensor on a standpipe for detecting the pressure inside the standpipe; mounting a pump pressure sensor on a discharge line of the drilling pump for detecting the pressure of the drilling pump; setting a judgement constant N according to the average value of the difference between mud pressure in the pipelines upstream and downstream of a high-pressure valve in a normal operating condition; and at the start of the drill pump, comparing the mud pressure P1 in the pipeline upstream of the high-pressure valve and the mud pressure P2 in the pipeline downstream of the high-pressure valve in real time: if P1-P2≤N, the high-pressure valve is determined in an open state, and the drilling pump is operating normally; and if P1−P2>N, the high-pressure valve is determined in a closed state, and a pump suffocation occurs to the drilling pump. According to the method, whether the high-pressure valve is closed is determined by means of calculating and compa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.