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Collaborating Authors
hydraulic fracturing
A major issue facing many production engineers is sand management. There are many obstacles equipment hasn't historically been able to overcome and prolonged use is costly. Watch this SPE Tech Talk with TETRA Technologies, where we explore both tangible and economical solutions to overcoming the challenges of sand management in post-frac production.
- Well Completion > Sand Control (1.00)
- Well Completion > Hydraulic Fracturing (0.90)
- Production and Well Operations (1.00)
- Well Completion > Hydraulic Fracturing (0.80)
Refracturing is an opportunity for EUR enhancement within an existing wellbore. The concept can be appealing for an operator to obtain production uplift without the higher costs associated with drilling the well. In addition, operators have partially de-risked the reservoir position since well production history is known. So, is it really that simple? Don't miss this SPE Tech Talk with Universal Pressure Pumping as we discuss optimal use cases for refrac consideration.
- Well Completion > Hydraulic Fracturing > Re-fracturing (1.00)
- Production and Well Operations (0.80)
The presentation reviews the results of taking three 40/70 mesh proppants commonly used for multi-stage horizontal well slickwater completions in North America and testing them at 0.5 lb/ft2 over 1000 hours of "extended time" at stress and temperature conditions representative of the Bakken formation of North Dakota. The results presented give a clear insight into the degree of damage occurring in the reservoir due to time at stress and temperature.
- North America > Canada > Saskatchewan > Williston Basin > Bakken Shale Formation (0.99)
- North America > Canada > Manitoba > Williston Basin > Bakken Shale Formation (0.99)
Do not underestimate the complexity of CO2 injection behavior for full scale projects. In this SPE Tech Talk, SLB presents a high-level overview of new, integrated, machine learning solutions for seismic interpretation (horizons and faults). The field development and asset management life cycle comprise 7 stages: explore, appraise, select, define, execute, operate, and abandon. This episode will discuss the importance of using subsurface seismic data to screen and appraise carbon storage sites for the purpose of carbon capture and storage (CCS). Join this SPE Live with Professor Sid Misra and discover the transformative power of causal inferencing in subsurface engineering.
- Well Completion > Hydraulic Fracturing (1.00)
- Reservoir Description and Dynamics > Storage Reservoir Engineering > CO2 capture and sequestration (1.00)
- Reservoir Description and Dynamics > Reservoir Characterization > Seismic processing and interpretation (1.00)
- Health, Safety, Environment & Sustainability > Environment > Climate change (0.98)
Join us for an SPE Live episode on "Innovation in Hydraulic Fracturing" with a preview of the SPE Hydraulic Fracturing Technology Conference and Exhibition on 6-8 February 2024, being held in the Woodlands, Texas – USA. A Q&A session will then follow with questions from the audience, answered by our guests.
Detecting fractures and monitoring hydraulic fracturing processes at the first EGS Collab testbed using borehole DAS ambient noise
Li, David (Los Alamos National Laboratory) | Huang, Lianjie (Los Alamos National Laboratory) | Zheng, Yingcai (University of Houston) | Li, Yingping (University of Houston, BlueSkyDAS LLC) | Schoenball, Martin (Lawrence Berkeley National Lab) | Rodriguez-Tribaldos, Verónica (GFZ German Research Center for Geosciences) | Ajo-Franklin, Jonathan (Rice University) | Hopp, Chet (Lawrence Berkeley National Lab) | Johnson, Tim (Pacific Northwest National Laboratory) | Knox, Hunter (Pacific Northwest National Laboratory) | Blankenship, Doug (Sandia National Laboratories) | Dobson, Patrick (Lawrence Berkeley National Lab) | Kneafsey, Tim (Lawrence Berkeley National Lab) | Robertson, Michelle (Lawrence Berkeley National Lab)
ABSTRACT Enhanced geothermal systems (EGS) require cost-effective monitoring of fracture networks. We validate the capability of using borehole distributed acoustic sensing (DAS) ambient noise for fracture monitoring using core photos and core logs. The EGS Collab project has conducted 10 m scale field experiments of hydraulic fracture stimulation using 50–60 m deep experimental wells at the Sanford Underground Research Facility (SURF) in Lead, South Dakota. The first EGS Collab testbed is located at 1616.67 m (4850 ft) depth at SURF and consists of one injection well, one production well, and six monitoring wells. All wells are drilled subhorizontally from an access tunnel called a drift. The project uses a single continuous fiber-optic cable installed sequentially in the six monitoring wells to record DAS data for monitoring hydraulic fracturing during stimulation. We analyze 60 s time records of the borehole DAS ambient noise data and compute the noise root-mean-square (rms) amplitude on each channel (points along the fiber cable) to obtain DAS ambient noise rms amplitude depth profiles along the monitoring wellbore. Our noise rms amplitude profiles indicate amplitude peaks at distinct depths. We compare the DAS noise rms amplitude profiles with borehole core photos and core logs and find that the DAS noise rms amplitude peaks correspond to the locations of fractures or lithologic changes indicated in the core photos or core logs. We then compute the hourly DAS noise rms amplitude profiles in two monitoring wells during three stimulation cycles in 72 h and find that the DAS noise rms amplitude profiles vary with time, indicating the fracture opening/growth or closing during the hydraulic stimulation. Our results demonstrate that borehole DAS passive ambient noise can be used to detect fractures and monitor fracturing processes in EGS reservoirs.
- North America > United States > Texas (0.47)
- North America > United States > New Mexico (0.28)
- North America > United States > California (0.28)
- Government > Regional Government > North America Government > United States Government (1.00)
- Energy > Oil & Gas > Upstream (1.00)
- Energy > Renewable > Geothermal > Geothermal Resource (0.87)
- Well Completion > Hydraulic Fracturing (1.00)
- Reservoir Description and Dynamics > Non-Traditional Resources > Geothermal resources (1.00)
- Reservoir Description and Dynamics > Formation Evaluation & Management > Open hole/cased hole log analysis (1.00)
- Production and Well Operations > Well & Reservoir Surveillance and Monitoring > Production logging (1.00)