Method and System for the Design of an Oil Well
AssigneeRobert Gordon University
InventorsPhilip M. Burge, Mufutau B. Oyeneyin
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Abstract
The invention is concerned with the design of oil wells by defining a number of design parameters, some of which are interdependent. The invention makes use of successive optimizations. Input data are selected for a first parameter and varied to achieve a first optimisation. The process is repeated for a second parameter whose input data includes the first parameter, and then repeated for each other of the defined parameters. The design parameters may be presented to the user via a graphical interface such as a virtual reality view.
Claims12
A method of designing an oil well, comprising:
- (a) defining a plurality of design parameters each of which is determined by a number of input data, the input data for at least some of the parameters including one or more of the other parameters;
- (b) providing, for each of the design parameters, conditions or constraints which must be met;
- (c) selecting input data for a first design parameter such that the parameter falls within the conditions or constraints;
- (d) varying the input data for the first design parameter to achieve an initial optimisation of the parameter;
- (e) for a second design parameter whose input data includes the first parameter, selecting other input data such that the second parameter falls within the conditions or constraints;
- (f) varying said other input data for the second design parameter to achieve an initial optimisation of the parameter;
- (g) varying the input data for the first parameter to further optimise the second parameter;
- and
- (h) repeating steps (e) to (g) for the remaining design parameters.
A system for use in oil well design, comprising:
- a database storing a plurality of design parameters each of which is determined by a number of input data, the input data for at least some of the parameters including one or more other parameters;
- the database also storing for each parameter conditions or constraints which must be met;
- means for selecting input data for each of the parameters;
- calculating means for calculating a selected parameter from its input data;
- and
- means for optimising a given parameter by altering the input data of another parameter which forms an input to said given parameter.
An oil well design system in which design parameters are presented to a user via a graphical user interface.
A method of forming an oil well in which a model of the predicted wellbore conditions is constructed;
- real time data is generated by sensors in the well and the drilling rig;
- said real time data is used to compare the actual with the predicted conditions and differences are used to adjust drilling parameters or to adjust the model;
- an updated model is created;
- and the process is repeated as necessary.
Dependencies are inferred from the claim text.