The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2022
Filed:
Jul. 03, 2019
Puyang Baifu Reide Petroleum Science and Technology Company Limited, Puyang, CN;
Gang Zhao, Puyang, CN;
Chen Chen, Tianjin, CN;
Jianfeng Jin, Puyang, CN;
Zhitao Zhang, Puyang, CN;
Chun Yu, Puyang, CN;
Yulong Xia, Puyang, CN;
Yingdong Zhang, Puyang, CN;
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 Pin the pipeline upstream of the high-pressure valve and the mud pressure Pin the pipeline downstream of the high-pressure valve in real time: if P-P≤N, the high-pressure valve is determined in an open state, and the drilling pump is operating normally; and if P−P>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 comparing the difference between upstream and downstream pressure of mud liquid using the pressure sensors, such that not only can a drilling pump be prevented from a pump seizure accident due to suffocation, but also a safety risk brought about by an ultra-high pump pressure of a drilling pump during drilling can be prevented by means of taking full advantages of the pressure sensors.