Method of analysing fluid influxes in hydrocarbon wells
CA 1325278 C · Owner: Southeastern Commonwealth Drilling Ltd. · Inventors: Gavignet, Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of Analysing, Fluid Influxes in Hydrocarbon Wells Abstract, The invention relates to a method of analysing fluid influxes into an oil well from an underground formation. During a drilling mud transient flow state, the successive values of the rate Qi or pressure Pr of injection of the drilling mud into the well and the successive values of the rate Qr or pressure Pr of return of the drilling mud to the surface are measured. The changing values of the rate or pressure of injection are compared with the changing values of the return rate or pressure. From this comparison the nature and volume of the fluids that have penetrated into the well are determined. Application to the drilling …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted December 14, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 14, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.