Patent · US Active

Drilling fluid filter screen and method of use

US10557323B2 · kind B2 · utility

7Cited by
4References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 14, 2018
Grant dateFeb 11, 2020
Priority date—
Expiry dateJun 14, 2038

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B21/062
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A filter screen assembly is shown for filtering drilling mud used during oil and gas well drilling operations. The filter screen assembly is installed at the surface of a well on the discharge side of the mud pump at ground level. The filter screen assembly is installed upstream of the rig swivel, rotary hose and Kelly and downstream of the discharge from the mud pump. Since it is located at ground level, it does not pose the safely hazard associated with elevated components. It does not need to be removed and reinstalled when additional segments are added to the drill string and is always easily accessible for routine maintenance or replacement.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.