METHOD AND APPARATUS FOR EARLY DETECTION OF KICKS

摘要

A well monitoring system particularly useful in detecting kicks in the well includes a well, a well system, and a computing apparatus. The well defines a wellbore and the well system includes at least one sensor measuring at least one well condition. The computing apparatus hosts a well monitoring software component that performs a method to detect a kick in a well. The method includes: storing a set of real-time data from a measurement of a well condition by the sensor, the measurements being correlative to an unplanned fluid influx into the well; modeling the operation of the well with a physics-based, state space model of the well system to obtain an estimate of the well condition; and applying the real-time data set and the estimate to a probabilistic estimator to yield a probability of an occurrence of a kick and a confidence measure for the probability.

主权项

1. A well monitoring system, comprising:
a well; a well system, the well system including at least one sensor measuring at least one well condition; and a computing apparatus, including:
a processor;a storage;a bus system over which the processor communicates with the storage;a data structure residing in the storage in which real-time data acquired by the sensor is stored;a well monitoring software component residing on the storage that, when executed by the processor over the bus system, performs a method to detect a kick in a well, the method comprising:
storing a set of real-time data from a measurement of the well condition by the sensor, the well condition being correlative to an unplanned fluid influx into the well;modeling the operation of the well with a physics-based, state space model of the well system to obtain an estimate of the well condition;accessing the stored real-time data set; andapplying the accessed real-time data set and the estimate to a probabilistic estimator to yield a probability of an occurrence of a kick and a confidence measure for the probability.