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:
Aug. 26, 1997
Filed:
Sep. 27, 1993
Mark D Mueller, Santa Maria, CA (US);
Union Oil Company of California, El Segundo, CA (US);
Abstract
An iterative planning and monitoring method for drilling (and completing) difficult boreholes which avoids unnecessary risk or cost. The method provides multiple point value probability estimates of an indicator of drilling problems based upon a range of possible drilling variables, supplanting single point estimates. Expected drilling variables are perturbed within physically feasible bounds, and multiple estimates of the corresponding indicator values are made. The probability of each estimate is used to calculate the likelihood of an indicator of an unwanted condition. Mitigation measures are implemented if the probability of an unwanted condition exceeding a threshold value is unacceptable and the mitigated probability is reassessed. If the perturbed indicator change is not significant, the drilling variable is deleted from further analysis. Critical variables are thus quickly identified, allowing monitoring and selection of mitigation measures which are the most cost effective. Unnecessary mitigation procedures or unwanted drilling risks are avoided by these procedures.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile