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US 2014/0277752 A1Published application
Drilling Advisory Systems and Methods to Filter Data
AssigneeExxonMobil Upstream Research Company
InventorsDar-Lon Chang, Lei Wang, Paul E. Pastusek, Jeffrey R. Bailey, Gregory S. Payette, Darren Pais
Life of this patent
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Abstract
Integrated methods and systems for optimizing drilling related operations include recording data, parsing the data into intervals and analyzing the intervals to determine if the performance data in each time interval is of sufficient quality for using the interval data in a performance optimization process. The quality assessment may involve evaluating the data against a set of determined standards or ranges. The performance optimization process may utilize data mapping and/or modeling to make performance optimization process recommendations.
Claims47
A method of drilling a wellbore through a subterranean formation, the method comprising the steps of:
- (a) receiving temporally evolving data from a drilling system while drilling regarding at least two drilling parameters, at least one of which is a controllable drilling operational parameter, the received data corresponding to an interval of drilling time;
- (b) calculating data-relationship statistics on the temporally evolving received data to identify non-overlapping subintervals of the received data where the subintervals are defined by conditions whereby the received data for the controllable drilling operational parameter of the at least two drilling parameters meets the criteria of having (i) a number of data points within a specified range of number of data points having standard deviations of the controllable drilling operational parameter that is not greater than a specified tolerance for the controllable drilling operational parameter, and (ii) a mean value that is within a specified range for such controllable drilling operational parameter, wherein the subintervals that are defined by such conditions are identified as a response point;
- (c) cataloging each identified response point within a response database, including cataloging at least one of a property determined from the received data for the identified response point and a corresponding performance value calculated using the received data for the identified response point;
- (d) locating the cataloged response point for the subinterval within a response map;
- (e) repeating steps (c)-(d) for each subinterval identified as a response point;
- and
- (f) selecting a mapped response point from the response database that meets a selected drilling performance characteristic and using at least one of the recorded properties of and calculated values for the selected response point as a basis for making an operational adjustment for drilling the wellbore.
4 more elements
A computer-based system for use in association with drilling operations, the computer-based system comprising:
- a processor adapted to execute instructions;
- a non-transitory computer readable storage medium in communication with the processor;
- and
- at least one instruction set accessible by the processor and saved in the storage medium;
- wherein the at least one instruction set is adapted to:
- (a) receiving temporally evolving data from a drilling system while drilling regarding at least two drilling parameters, at least one of which is a controllable drilling operational parameter, the received data corresponding to an interval of drilling time;
- calculating data-relationship statistics on the temporally evolving received data to identify non-overlapping subintervals of the received data where the subintervals are defined by conditions whereby the received data for the controllable drilling operational parameter of the at least two drilling parameters meets the criteria of having (i) a number of data points within a specified range of number of data points have standard deviations of the controllable drilling operational parameter that is not greater than a specified tolerance for the controllable drilling operational parameter, and (ii) a mean value that is within a specified range for such controllable drilling operational parameter, wherein the subintervals that are defined by such conditions are identified as a response point;
- (b) cataloging each identified response point within a response database, including cataloging at least one of a property determined from the received data for the identified response point and a corresponding performance value calculated using the received data for the identified response point;
- (c) locating the cataloged response point for the subinterval within a response map;
- (d) repeating steps (c)-(d) for each subinterval identified as a response point;
- and
- (e) selecting a mapped response point from the response database that meets a selected drilling performance characteristic and using at least one of the recorded properties of and calculated values for the selected response point as a basis for making an operational adjustment for drilling the wellbore.
9 more elements
Dependencies are inferred from the claim text.