| 摘要 |
There is provided a computer-implemented method for estimating a tilt of a layer of a reservoir, there being a production well extending into the layer of the reservoir configured such that fluid flows from the layer into the production well. The production well further comprises one or more devices arranged to measure a temperature of fluid at one or more locations within the production well at a plurality of points in time. The method comprises: receiving temperature data from the one or more devices, the temperature data being indicative of a temperature of fluid entering the production well from the layer at each of a plurality of points during a period of time; identifying, using the temperature data, a trend indicative of a change in temperature of the fluid entering the production well during the period of time; identifying a velocity of fluid within the layer in a direction of flow of fluid within the layer during the period of time; determining using the identified trend and the identified velocity, an estimate of the change in temperature by distance for the fluid, the distance being in a direction of flow of fluid within the layer; identifying a geothermal gradient indicative of a change with depth in the temperature of rock within and surrounding the reservoir; and determining a measure of the tilt of a layer in the reservoir based on the estimated change in temperature by distance and the geothermal gradient. |
