Advanced LWD and Directional Drilling Technologies Overcome Drilling and
Completion Challenges in Lateral Wells of Barnett Shale

Janwadkar, Sandeep Shashikant; Morris, Stephen; Potts, Mike; Kelley, Jeff; Fortenberry, David Guinn; Roberts, Geoffrey K.; Kramer, Mark A.; Privott, Steve A.; Rogers, Thomas R.

doi:10.2523/110837-ms

Cited by 4 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, induced fractures are also detrimental; tapping into these fracture networks may negatively impact production and lead to the loss of fracture energy to break new rock. To optimize the hydraulic stimulation program, it is necessary to obtain information about the type, location, frequency, and direction of fractures (Janwadkar et al, 2007).…”

Section: Incorporation Of Well Datamentioning

confidence: 99%

Azimuthal variations in attributes for induced fracture detection in the Barnett Shale

Trumbo

Rich

2013

Interpretation

View full text Add to dashboard Cite

Wide azimuth seismic data acquisition has become standard in many plays where azimuthal characterization of fractures or stress is important for fully understanding reservoir behavior. Usually, the desire is to image preexisting fracture networks, but, in artificially stimulated reservoirs, it is also desirable to understand the fracture state after completion. To characterize the induced fractures in a heavily drilled area of the Barnett Shale, a wide azimuth survey was acquired and processed to generate four separate azimuthal stacks. Attributes exploiting variations in amplitude and waveform were independently calculated for each azimuthal stack. Azimuthal variations in the attributes were then quantified through ellipse fitting. The attributes with the most statistical significance in azimuthal variability were those related to frequency such as the wavelet dominant frequency. These attributes were consistent with each other but show a wide distribution over azimuths across the survey. In addition, random distribution of orientations within the Barnett shale compared to the over and underlying Marble Falls and Viola Limestones indicate a difference in orientation for the induced as opposed to preexisting fractures. With the ability to map the induced fractures, it becomes feasible to take an intelligent approach to planning infill locations to avoid the previously fractured areas.

show abstract

Section: Incorporation Of Well Datamentioning

confidence: 99%

Azimuthal variations in attributes for induced fracture detection in the Barnett Shale

Trumbo

Rich

2013

Interpretation

View full text Add to dashboard Cite

show abstract

“…From this review process, a set of objectives is created and the team pulls from the technology package described above to build a fit for purpose bit designed for the specific application. This ensures that the appropriate bit technology package is chosen or developed for the planned well and BHA Jennings et al, 2007).…”

Section: Design and Application Review Team For Drilling Optimizationmentioning

confidence: 99%

“…Optimization processes and toolkits have been deployed , Janwadkar et al, 2007, and Jennings et al, 2007 for application-specific drill bit and BHA technology to maximize economical performance of the drilling system. Drilling in the shale plays has continued to expand and more operators have entered the shale plays with unique drilling program needs.…”

Section: Introductionmentioning

confidence: 99%

Application-Specific Bit Technology Leads to Improved Performance in Unconventional Gas Shale Plays

2010

View full text Add to dashboard Cite

Unconventional gas plays in Texas, Oklahoma, and Louisiana have become increasingly important. Operators have produced unconventional gas in these shale formations through better well profiles and completion/fracture technology. One key to the fields' continued success is reducing drilling cost even with the current depressed pricing of natural gas. The two general types of drilling programs are vertical/curve/horizontal profiles and more complex wells drilled from a pad. Each of these well types challenges bit designs. A new application-specific bit design package has been developed for these applications. This new design includes features such as improved stability, steerability, optimized hydraulics, depth-of-cut control, diamond volume management and wear-and durability-optimized cutters.Over the last couple of years, operators and service companies have developed a three-bit program to successfully drill in the Barnett play. The challenge of this vertical/curve/horizontal program is combining two intervals into one bit run, thus reducing the number of bits from three to two and improving the economics in drilling the well. In complex well profiles, steerability and durability are critical. Until recently, many intervals were drilled exclusively with roller cone bits. The advent of the application-specific bit designs has enabled the operators to replace multiple roller cone bits with one polycrystalline diamond compact (PDC) bit. This paper will present case studies from multiple independent operators showing the drilling performance improvement, leading to significant cost savings through reduced drilling time and fewer trips. Similar case studies include those in the Haynesville shale play. Runs in the Barnett play have shown up to 91 % faster rate of penetration (ROP) with run lengths of up to 92% longer footage. In the Haynesville play, bits have shown above average ROP with footage increases of 39%.Operators are rapidly adopting this technology and strategy throughout these fields and similar fields in other markets.

show abstract

Gas Shale Challenges Over the Asset Life Cycle

Kennedy

2015

Fundamentals of Gas Shale Reservoirs

View full text Add to dashboard Cite

Advanced LWD and Directional Drilling Technologies Overcome Drilling and Completion Challenges in Lateral Wells of Barnett Shale

Cited by 4 publications

References 0 publications

Azimuthal variations in attributes for induced fracture detection in the Barnett Shale

Azimuthal variations in attributes for induced fracture detection in the Barnett Shale

Application-Specific Bit Technology Leads to Improved Performance in Unconventional Gas Shale Plays

Gas Shale Challenges Over the Asset Life Cycle

Contact Info

Product

Resources

About