System and method for combined microseismic and tiltmeter analysis

1 . A system for monitoring a geophysical process, comprising:

a sensor array located within a bore, wherein the sensor array has at least one tilt sensor and at least one microseismic sensor;

a transmitter in communication with the at least one tilt sensor and the at least one microseismic sensor; and

a receiver in communication with the transmitter.

2 . The system of claim 1 , wherein the transmitter is a wireline.

3 . The system of claim 1 , wherein the transmitter transmits via wireless connectivity.

4 . The system of claim 1 , wherein the bore is within a well.

5 . The system of claim 4 , wherein the well is an active well.

6 . The system of claim 4 , wherein the well is an offset well.

7 . The system of claim 1 , wherein the bore is a shallow bore hole.

8 . The system of claim 1 , wherein the sensor array further comprises at least one tilt sensor interspersedly coupled to at least one microseismic sensor.

9 . A system for monitoring a geophysical process, comprising:

a wireline within a bore;

a plurality of components coupled to the wireline, wherein at least one of the plurality of components comprises a tilt sensor and a microseismic sensor; and

a receiver in communication with the tilt sensor and microseismic sensor.

10 . The system of claim 9 wherein the tilt sensor comprises an “x” axis tilt sensor and a “y” axis tilt sensor.

11 . The system of claim 9 , wherein the at least one of the plurality of components further comprises a tilt sensor leveling assembly.

12 . The system of claim 11 , wherein the tilt sensor leveling assembly further comprises at least one motor for enabling the tilt sensor to operate in a predetermined operating range for collection of tiltmeter data.

13 . The system of claim 12 , wherein the tilt sensor is coupled to the at least one motor through a chain drive.

14 . The system of claim 12 , wherein the at least one motor is capable of bringing the tilt sensor substantially close to vertical level.

15 . The system of claim 9 , wherein the microseismic sensor is a triaxial geophone.

16 . The system of claim 9 , wherein the microseismic sensor is an accelerometer.

17 . The system of claim 9 , wherein the microseismic sensor is configured to detect any of triaxial seismic data, biaxial seismic data, compressional data, and shear wave data.

18 . The system of claim 9 , wherein the microseismic sensor has a predetermined orientation to provide measurement of a plurality of seismic events.

19 . The system of claim 9 , wherein the microseismic sensor is fixed in relation to an orientation of the tilt sensor.

20 . The system of claim 19 , wherein a relative position of the microseismic sensor in relation to the tilt sensor is measured through an independent sensor.

21 . The system of claim 9 , wherein the at least one of the plurality of components further comprises a power module.

22 . The system of claim 9 , wherein the at least one of the plurality of components further comprises a communications module.

23 . The system of claim 9 , wherein the at least one of the plurality of components further comprises a motor and a clamp arm coupled to said motor.

24 . A method for analyzing tilt data and microseismic data, comprising:

receiving data comprising tiltmeter data and microseismic data from a sensor during at least one geophysical process;

analyzing the microseismic data to ascertain a location of each microseismic event of a plurality of microseismic events isolated from the microseismic data; and

analyzing the tiltmeter data to ascertain orientation and dimension of a fracture developed during said at least one geophysical process.

25 . The method of claim 24 , further comprising:

separating the tiltmeter data and the microseismic data.

26 . The method of claim 24 , wherein the analyzing the microseismic data further comprises:

detecting and isolating the plurality of microseismic events;

storing the plurality of microseismic events; and

ascertaining the location of each microseismic event.

27 . The method of claim 24 , wherein the analyzing the microseismic data further comprises:

performing source parameter analysis on each microseismic event.

28 . The method of claim 24 , wherein the analyzing the tiltmeter data further comprises:

performing fracture dimension and depth analysis on the tiltmeter data; and

applying microseismic data related to each microseismic event to ascertain the orientation and dimension of the fracture.

29 . The method of claim 28 , wherein performing fracture dimension and depth analysis on the tiltmeter data further comprises:

receiving location data and orientation data of the sensor;

computing an error-mismatch value of a theoretical tilt computed using a predetermined fracture model and a measured tilt extracted from the tiltmeter data.

30 . The method of claim 29 , further comprising:

receiving initial fracture constraints of the fracture; and

performing an initial guess for a plurality of fracture parameters of the fracture using the initial fracture constraints to obtain a fracture model.

31 . The method of claim 30 , further comprising:

refining said plurality of fracture parameters using additional far field constraints.

32 . The method of claim 24 , further comprising:

receiving location data and orientation data of the sensor; and

computing a theoretical tilt using a predetermined fracture model, the location data and the orientation data.

33 . The method of claim 32 , further comprising:

extracting a measured tilt from the tiltmeter data; and

performing an inversion procedure on the tiltmeter data and the microseismic data using the theoretical tilt and the measured tilt to obtain best-fit fracture parameters and uncertainty values for the fracture.

34 . A method for analyzing tilt data and microseismic data comprising:

receiving data comprising tiltmeter data and microseismic data from a sensor during at least one geophysical process;

receiving location data and orientation data of the sensor;

analyzing the microseismic data to ascertain a location of each microseismic event of a plurality of microseismic events isolated from the microseismic data;

extracting a measured tilt from the tiltmeter data;

analyzing the tiltmeter data to ascertain orientation and dimension of a fracture developed during said at least one geophysical process;

receiving initial fracture constraints of the fracture;

performing an initial guess for a plurality of fracture parameters of the fracture using the initial fracture constraints to obtain a fracture model;

computing a theoretical tilt using the fracture model;

computing an error-mismatch value of the theoretical tilt and the measured tilt;

refining said plurality of fracture parameters using additional far field constraints; and

performing an inversion procedure on the tiltmeter data and the microseismic data using the theoretical tilt and the measured tilt to obtain best-fit fracture parameters and uncertainty values for the fracture.

35 . A system for monitoring a geophysical process, comprising:

means for receiving combined data comprising tiltmeter data and microseismic data from a component array comprising a plurality of components for collecting said tiltmeter data and said microseismic data during at least one geophysical process;

means for analyzing said microseismic data to ascertain a location of each microseismic event of a plurality of microseismic events isolated from said microseismic data;

means for analyzing said tiltmeter data to ascertain orientation and dimension of a fracture developed during said at least one geophysical process; and

means for displaying said fracture in at least one window of a user interface.

36 . A computer readable medium containing executable instructions, which, when executed in a processing system, cause said processing system to perform a method comprising the steps of:

receiving data comprising tiltmeter data and microseismic data from a sensor during at least one geophysical process;

analyzing the microseismic data to ascertain a location of each microseismic event of a plurality of microseismic events isolated from the microseismic data;

analyzing the tiltmeter data to ascertain orientation and dimension of a fracture developed during said at least one geophysical process; and

displaying said fracture in at least one window of a user interface.