Wavelet estimation for four-dimensional characterization of subsurface properties based on dynamic simulation
AssigneeLandmark Graphics Corporation
InventorsTravis St. George Ramsay, Felix Rafael Segovia
Life of this patent
Estimating the term…
Abstract
Wavelet estimation may be performed in a reservoir simulation model that is constrained by seismic inversion data and well logs. A synthetic seismic trace is generated along with an estimated wavelet. The reservoir simulation model is revised based on results from model comparisons to actual data or base seismic data and is then used to perform a wavelet estimation. The estimated wavelet may then be used to plan further production at the well site environment, additional production at additional well site environments or any other production and drilling operation for any given present or future well site environment.
Claims20
A method for altering one or more well services or production operations for a subterranean formation, comprising:
- receiving a first seismic data of an area of the subterranean formation, wherein the first seismic data is associated with a first instance of time;
- estimating one or more wavelets based, at least in part, on the first seismic data that comprises an impedance log;
- generating one or more synthetic seismic traces based, at least in part, on the one or more estimated wavelets;
- performing seismic inversion using one or more determined spatial constraints based, at least in part, on the first seismic data;
- creating a flow simulation forecast model;
- acquiring monitor seismic data;
- generating a petro-elastic model (PEM) based, at least in part, on a rate of acquisition of the monitor seismic data;
- generating one or more monitor synthetic seismic traces based, at least in part, on one or more derived logs from the PEM;
- estimating one or more monitor estimated wavelets based, at least in part, on the one or more derived logs from the PEM,
- comparing the one or more monitor synthetic seismic traces to a monitor seismic survey;
- and
- altering the one or more well services or production operations based, at least in part, on the comparison.
A non-transitory computer readable storage medium storing one or more instructions, that when executed by a processor, cause the processor to:
- receive a first seismic data of an area of a subterranean formation, wherein the first seismic data is associated with a first instance of time;
- estimate one or more wavelets based, at least in part, on the first seismic data that comprises an impedance log;
- generate one or more synthetic seismic traces based, at least in part, on the one or more estimated wavelets;
- perform seismic inversion using one or more determined spatial constraints based, at least in part, on the first seismic data;
- create a flow simulation forecast model;
- acquire monitor seismic data;
- generate a petro-elastic model (PEM) based, at least in part, on a rate of acquisition of the monitor seismic data;
- generate one or more monitor synthetic seismic traces based, at least in part, on one or more derived logs from the PEM;
- estimate one or more monitor estimated wavelets based, at least in part, on the one or more derived logs from the PEM,
- compare the one or more monitor synthetic seismic traces to a monitor seismic survey;
- and
- alter one or more well services or production operations based, at least in part, on the comparison.
An information handling system comprising:
- a non-transitory memory;
- a processor coupled to the memory, wherein the memory comprises one or more instructions executable by the processor to:
- receive a first seismic data of an area of the subterranean formation, wherein the first seismic data is associated with a first instance of time;
- estimate one or more wavelets based, at least in part, on the first seismic data that comprises an impedance log;
- generate one or more synthetic seismic traces based, at least in part, on the one or more estimated wavelets;
- perform seismic inversion using one or more determined spatial constraints based, at least in part, on the first seismic data;
- create a flow simulation forecast model;
- acquire monitor seismic data;
- generate a petro-elastic model (PEM) based, at least in part, on a rate of acquisition of the monitor seismic data;
- generate one or more monitor synthetic seismic traces based, at least in part, on one or more derived logs from the PEM;
- estimate one or more monitor estimated wavelets based, at least in part, on the one or more derived logs from the PEM;
- compare the one or more monitor synthetic seismic traces to a monitor seismic survey;
- and
- alter one or more well services or production operations based, at least in part, on the comparison.
Dependencies are inferred from the claim text.