The relationship between closure pressures from fluid injection tests and the minimum principal stress in strong rocks

Nelson, Emma J.; Chipperfield, Simon; Hillis, Richard R.; Gilbert, John Victor; McGowen, Jim; Mildren, Scott D.

doi:10.1016/j.ijrmms.2006.10.004

Cited by 46 publications

(26 citation statements)

References 50 publications

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“…Sayers et al Further complexity arises with fracture gradient as these can depend on in situ stress, tensile strength, and geological fabrics. For example, Nelson et al (2007aNelson et al ( , 2007b separated Cooper-Eromanga basin reservoirs into three "type" reservoirs, with fracture gradient ranging from 13.1-24.2 MPa/km (0.58-1.07 psi/ft). These again are based on closure pressures of minifrac data.…”

Section: Resultsmentioning

confidence: 99%

Geoengineering and Economic Assessment of a Potential Carbon Capture and Storage Site in Southeast Queensland, Australia

Cinar

Neal

Allinson

et al. 2009

SPE Reservoir Evaluation &Amp; Engineering

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This paper presents geoengineering and economic sensitivity analyses and assessments of the Wunger Ridge flank carbon capture and storage (CCS) site. Both geoengineering and economics are needed to derive the number of wells required to inject a certain amount of CO 2 for a given period.A numerical reservoir simulation examines injection rates ranging from 0.5 to 1.5 million tonnes of CO 2 year for 25 years of injection. Primary factors affecting the ability to inject CO 2 include permeability, formation fracture gradient, aquifer strength, and multiphase flow functions. Secondary factors include the solubility of CO 2 in the formation brine, injection well location with respect to the flow barriers/low-permeability aquifers, model geometry including faults, grid size and refinement, and injection well type. Less significant factors include hydrodynamic effects.The economics are assessed using an internally developed technoeconomic model. The model optimizes the CO 2 injection cost on the basis of geoengineering data and recent equipment costs. The overall costs depend on the initial costs of CO 2 separation and source-to-sink distances and their associated pipeline costs. Secondary cost variations are highly dependent on fracture gradient, permeability, and CO 2 injection rates. Depending on the injection characteristics, the specific cost of CO 2 avoided is between AUS 62 and 80 per tonne.

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Section: Resultsmentioning

confidence: 99%

Geoengineering and Economic Assessment of a Potential Carbon Capture and Storage Site in Southeast Queensland, Australia

Cinar

Neal

Allinson

et al. 2009

SPE Reservoir Evaluation &Amp; Engineering

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“…Since we were not able to determine the attitude of the hydraulic fracture in the test interval, we cannot ascertain which of these two possibilities is correct. Considering the many past applications of XLOT, both in continental scientific drilling projects and in industry oil fields (Kunze andSteiger, 1991�� Lund andZoback, 1999), we suggest that, although it is not a perfect and universally used technique, XLOT can provide data that are both valuable and practical for estimating the magnitude of minimum principal stress (Nelson et al, 2007).…”

Section: An Extended Leak-off Onboard the Chikyumentioning

confidence: 99%

Estimation of Minimum Principal Stress from an Extended Leak-off Test Onboard the Chikyu Drilling Vessel and Suggestions for Future Test Procedures

Lin

Yamamoto

Ito

et al. 2008

Scientific Drilling

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To understand the physics of faulting and rupture propagation for the great M8-class Nankai earthquakes that recur approximately every 100 years, a comprehensive drilling project is underway: the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE; Tobin and Kinoshita, 2007), which is part of the Integrated Ocean Drilling Program (IODP). Stress levels along seismogenic faults must be known in order to understand processes controlling the timing, energetics, and extent of earthquake ruptures. For scientific drilling projects such as NanTroSEIZE, it is very important to determine the in situ stress state at the decollement and the mega splay fault in the Nankai Trough

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“…The test can also be run multiple times (Yamamoto 2003), and off-shore (Lin et al 2008) with the new riser-drilling vessel Chikyu which allows pressuring the entire casing string with drilling mud immediately after the casing is cemented in place. xLOT can provide data that are both, valuable and practical for estimating the magnitude of S h (Nelson et al 2007). A consistent fracture closure pressure in multiple tests gives greater confidence in S h interpretation.…”

Section: Stress Magnitudes Q-wsmmentioning

confidence: 99%

World Stress Map Database as a Resource for Rock Mechanics and Rock Engineering

et al. 2012

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The relationship between closure pressures from fluid injection tests and the minimum principal stress in strong rocks

Cited by 46 publications

References 50 publications

Geoengineering and Economic Assessment of a Potential Carbon Capture and Storage Site in Southeast Queensland, Australia

Geoengineering and Economic Assessment of a Potential Carbon Capture and Storage Site in Southeast Queensland, Australia

Estimation of Minimum Principal Stress from an Extended Leak-off Test Onboard the Chikyu Drilling Vessel and Suggestions for Future Test Procedures

World Stress Map Database as a Resource for Rock Mechanics and Rock Engineering

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