Abstract: In one example of determining fracturing rheological behavior of fracturing fluids, a reference viscosity and fluid properties of a fracturing fluid are received. A fracturing rheological behavior of the fracturing fluid is modeled using a fluid model that models the fracturing rheological behavior of Newtonian and non-Newtonian fluids based, in part, on the received reference viscosity and the received fluid properties of the fracturing fluid. The fracturing rheological behavior of the fracturing fluid is provided. If a fracturing fluid is a mixture of two or more fracturing fluids, then a rheological behavior of the mixture is modeled based on a mixing rheological model. The fracturing rheological behavior of the mixture is then modeled based on the rheological behavior modeled by the mixing rheological model.

Abstract: In some aspects, response data from an injection test of a subterranean region are received during an injection treatment of the subterranean region. The injection treatment is modified based on the response data. In some instances, the response data are acquired during a series of injection periods and shut-in intervals of the injection test. Each of the injection periods is followed by a respective one of the shut-in intervals.

Abstract: Some aspects of what is described here relate to seismic data analysis techniques. A seismic excitation is generated in a first directional wellbore section in a subterranean region. A seismic response associated with the seismic excitation is detected in a second directional wellbore section in the subterranean region. Seismic response data based on the seismic response are analyzed to determine a completion design for a wellbore in the subterranean region.

Abstract: Some aspects of what is described here relate to seismic profiling techniques. In some implementations, a time-sequence of seismic excitations are generated at seismic source locations in a first directional wellbore section in a subterranean region. Each seismic excitation is generated at a respective time and at a respective subset of the seismic source locations. A time-sequence of seismic responses are detected at one or more seismic sensor locations in a second directional wellbore section in the subterranean region. The time-sequence of seismic responses is associated with the time-sequence of seismic excitations. A fracture treatment of the subterranean region is analyzed based on the time-sequence of seismic responses.

Abstract: Systems and methods for generating and storing completion design models in a central data repository of modems for completion design, well bore (such as fracturing or drilling) or other operations is shown.

Abstract: Some aspects of what is described here relate to seismic data analysis techniques. A seismic excitation is generated in a first directional wellbore section in a subterranean region. A seismic response associated with the seismic excitation is detected in a second directional wellbore section in the subterranean region. Seismic response data based on the seismic response are analyzed to identify geomechanical properties of subterranean rock in a fracture treatment target region in the subterranean region. In some cases, the geomechanical properties include pore pressure, stress, or mechanical properties.

Abstract: Some aspects of what is described here relate to seismic data analysis techniques. A seismic excitation is generated in a first directional wellbore section in a subterranean region. A seismic response associated with the seismic excitation is detected by a fiber optic distributed acoustic sensing array in a second directional wellbore section in the subterranean region. Seismic response data based on the seismic response are analyzed to identify a location of a third wellbore in the subterranean region. A drilling direction for drilling the third wellbore is determined based on the identified location.

Abstract: Some aspects of what is described here relate to seismic profiling techniques. A seismic excitation is generated in a first directional section of a first wellbore in a subterranean region. Seismic responses associated with the seismic excitation are detected in directional sections of a plurality of other wellbores in the subterranean region. A fracture treatment of the subterranean region is analyzed based on the seismic responses. In some instances, a multi-dimensional seismic velocity model of the subterranean region is generated based on the seismic responses.

Abstract: Some aspects of what is described here relate to seismic profiling techniques. A seismic excitation is generated at a seismic source location in a directional section of a fracture treatment injection wellbore in a subterranean region. A seismic response associated with the seismic excitation is detected at a seismic sensor location in the directional section of the fracture treatment injection wellbore. The seismic response includes a reflection from the subterranean region. A fracture treatment applied through the fracture treatment injection wellbore is analyzed based on the reflection.

Abstract: Some aspects of what is described here relate to seismic profiling techniques. A seismic excitation is generated in a first directional wellbore section in a subterranean region. A seismic response associated with a seismic excitation is detected by a fiber optic distributed acoustic sensing array in a second directional wellbore section in the subterranean region. A fracture treatment of the subterranean region is analyzed based on the seismic response.

Abstract: In some aspects, response data from an injection test of a subterranean region are accessed. An injection treatment is designed based on the response data. The response data are acquired during a series of injection periods and shut-in intervals of the injection test. Each of the injection periods is followed by a respective one of the shut-in intervals.

Abstract: In some aspects, first and second boundaries are computed based on locations of microseismic events associated with a stimulation treatment of a subterranean region. Based on the first and second boundaries, an uncertainty associated with a stimulated reservoir volume (SRV) for the stimulation treatment is identified. The first and second boundaries are defined in a common spatial domain and at least a portion of the second boundary resides outside the first boundary.

Abstract: In some aspects, a closed boundary is computed based on locations of microseismic events associated with a stimulation treatment of a subterranean region. Based on the boundary, a stimulated reservoir volume (SRV) for the stimulation treatment is identified. The boundary encloses a first subset of the locations and a second, different subset of the locations reside outside the boundary.

Abstract: In some aspects, a first boundary is computed based on microseismic event locations associated with a first stage of a multi-stage injection treatment of a subterranean region. A second boundary is computed based on microseismic event locations associated with a second stage of the multi-stage injection treatment. Based on the first and second boundaries, an overlap between stimulated reservoir volumes (SRVs) associated with the first and second stages is determined.

Abstract: In some aspects, an injection rate of an injection test applied to a subterranean region is controlled. The injection test includes a series of injection periods and shut-in intervals. Each of the injection periods is followed by a respective one of the shut-in intervals. The subterranean region is monitored during the injection test.

Abstract: In some aspects, completion interval attributes are designed for wellbore intervals based on the stratigraphic positions of the respective wellbore intervals. The completion interval attributes can be determine by a completion design system that associates resource production attributes with distinct combinations of stratigraphic positions and completion interval attributes. In some aspects, the completion design system includes a correlation database generated by a correlation engine. The correlation engine can generate the correlation data based on production data and wellbore interval data from another wellbore.

Abstract: Systems, methods, and software can be used to simulate a fracture treatment. In some aspects, physically separate rock blocks of a subterranean zone are modeled by separate block models. The block model for each physically separate rock block represents intra-block mechanics of the rock block, for example, as a group of discrete block elements. Interactions between adjacent pairs of the rock blocks are modeled by separate joint models. The joint model for each adjacent pair of rock blocks represents inter-block mechanics between the adjacent rock blocks, for example, as pre-defined joints. The block models and joint models are used to simulate an injection treatment of the subterranean zone.

Abstract: A reservoir simulator system models the effect of proppant damage on reservoir production through calculation of a fracture closure stress versus fracture permeability relationship, which is mathematically transformed into a pore pressure versus fracture permeability relationship. Based upon the pore pressure relationship, the system models reservoir production while taking into account the permeability reduction in the fractures brought about due to proppant damage.

Abstract: Systems, methods, and software can be used to analyze microseismic data from a fracture treatment. In some aspects, fracture planes are identified based on microseismic event data from a fracture treatment of a subterranean zone. Each fracture plane is associated with a subset of the microseismic event data. Confidence level groups are identified from the fracture planes. Each confidence level group includes fracture planes that have an accuracy confidence value within a respective range. A graphical representation of the fracture planes is generated. The graphical representation includes a distinct plot for each confidence level group.

Abstract: Systems, methods, and software can be used to identify properties of fractures in a subterranean zone. In some aspects, a basic plane orientation is determined for each of a plurality of basic planes. The basic planes are defined by coplanar subsets of microseismic event data from a fracture treatment of a subterranean zone. The quantity of the basic plane orientations in each of a plurality of ranges is calculated. In some implementations, a histogram is displayed to indicate the quantity of basic plane orientations in each of the orientation ranges. A dominant fracture orientation is identified for the subterranean zone based on one or more of the identified quantities.