Method for detecting drilling events from measuremt while drilling sensors
Patent
·
OSTI ID:7041664
This patent describes a method for determining subsurface conditions encountered by a drill bit while drilling a borehole. It comprises: during the drilling process, determining rate of penetration and generation a signal indicative thereof; during the drilling process, determining downhole torque and generating a signal indicative thereof; in response to signals indicative of rate of penetration and downhole torque, generating an indication of the occurrence of a subsurface condition selected from the group comprising high formation porosity, a damaged bit bearing and the development of an undergauge bit.
- Assignee:
- Anadrill, Inc., Sugar Land, TX
- Patent Number(s):
- A; US 4876886
- Application Number:
- PPN: US 7-176826A
- OSTI ID:
- 7041664
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method for determining drilling conditions while drilling
Formation volumetric evaluation while drilling
Pore pressure formation evaluation while drilling
Patent
·
Tue Aug 01 00:00:00 EDT 1989
·
OSTI ID:5323043
Formation volumetric evaluation while drilling
Patent
·
Tue Aug 21 00:00:00 EDT 1990
·
OSTI ID:6777886
Pore pressure formation evaluation while drilling
Patent
·
Tue May 30 00:00:00 EDT 1989
·
OSTI ID:5717096