22 hesse capillary controls on brine percolation
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Capillary controls can minimize the surface energy of pore spaces in rock salt and exert important control on brine percolation. Simulations of texturally equilibrated pore networks in real polycrystalline materials allow probing of basic properties like percolation thresholds and permeability relationships. Laboratory experiments are consistent with computed percolation thresholds, while field data from wells show fluid commonly invades deeper sections of salt domes, consistent with brine beginning to wet grain boundaries at higher pressures and temperatures. However, in some domes fluid has percolated to shallower depths, likely due to shear deformation not accounted for in theory and experiments.
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V.P. Wright (2020) – Burial corrosion and porosity formation in carbonate res...
Burial corrosion and porosity formation can take place at depths of several kilometers in carbonate reservoirs through dissolution processes termed burial corrosion or mesogenetic dissolution. There is debate around the terminology but it is useful to take a hydrological approach and see the key processes as due to burial fluids derived from below the reservoir, known as hypogene fluids. Some consistent relationships seen in hypogene diagenetic systems that may prove useful for exploration include the common association with faults, especially transtensional faults, and platform slopes and margins forming major pathways, especially if fractured and near kitchens or compacting shale basins. Identifying the fluid source and mechanism is difficult but can provide predictive insight for exploration.
Reservoir Rock Properties
This document provides a basic overview of the fundamental rock properties. It delivers a detailed analysis of the basic reservoir rock properties like porosity, permeability, Fluid saturation , wettability, etc.
Reservoir Rock Properties
This presentation gives a basic overview of the basis of reservoir rock properties. It contains a detailed analysis of reservoir rock properties.
How the osmotic strength of formate brines stabilises wellbores in shales
The osmotic power of formate brines strengthens shales in the rocks surrounding wellbores and provides enhanced wellbore stability
Elemental geochemistry of_sedimentary_rocks_at_yellowknife_bay_gale_crater_mars
The document summarizes the elemental geochemistry of sedimentary rocks analyzed by the Curiosity rover at Yellowknife Bay, Mars. Key findings include:
1) The rocks have compositions similar to iron-rich basalt and contain elevated levels of iron, chlorine, and calcium sulfate compared to most Martian soils.
2) Mineralogical analysis found phyllosilicates, magnetite, calcium sulfates, and an amorphous component in the mudstones.
3) Geochemical evidence suggests magnetite is likely a diagenetic mineral that formed after deposition rather than a detrital mineral delivered from another source.
4) Ternary diagrams of elemental compositions indicate secondary alteration minerals
Distinguishing gas bearing sandstone reservoirs within mixed siliciclastic-ca...
Seismic AVO analysis of the mixed clastics and carbonate sequences to distinguish the gas sandstone in the Nile Delta basin, offshore Mediterranean Sea. Rock physics analysis is also included. Extended elastic impedance inversion also applied. Nile Delta seismic reservoir characterization workflow
Star 2011 Final
Settlement rates of invasive tunicates were observed over 4 weeks at different locations and depths in Pillar Point Harbor, California. Clod dissolution plates and settlement plates were used to measure flow rates and tunicate recruitment. Results showed no relationship between flow and settlement, but temperature increases, heavy algal growth, and predation on plates correlated with lower settlement. Further study of how temperature, competition, and predation impact recruitment is needed to better manage invasive tunicates.
Rock Physics: Introduction
This document provides an introduction to rock physics concepts through a series of images showing how seismic attributes are influenced by rock and fluid properties. It demonstrates how seismic velocity, amplitude, and AVO responses depend on factors like lithology, porosity, pore fluids, saturation, and scale of heterogeneity. Images show examples of how these relationships impact seismic interpretation of features like buried channels, fractures, and fluid distributions. The document emphasizes that rock physics aims to understand relationships between geophysical measurements and rock properties in order to better interpret seismic data and account for uncertainty.
Reservoir rock & fluid
- The document discusses reservoir characteristics including rock and fluid properties that are important to understand for optimal hydrocarbon recovery. Techniques like seismic data, well logging, and testing provide valuable data to build reservoir models.
- Key rock properties that impact hydrocarbon storage and flow include porosity, permeability, and wettability. Core analysis in the lab and well logs provide data on these properties.
- Understanding fluid properties like phase behavior under reservoir conditions of pressure and temperature is also important for predicting production performance and fluid composition.
Reservoir rock & fluid
This document discusses reservoir characteristics, rock and fluid properties, and drive mechanisms. It provides information on:
1) Techniques like seismic data, well logging, core analysis, and well testing that are used to understand the reservoir and develop an accurate reservoir model.
2) Reservoir characteristics including rock type, porosity, permeability, and factors that allow hydrocarbon accumulation like sufficient pore space and traps.
3) Rock properties such as porosity, permeability, and how they impact fluid flow.
4) Fluid properties including phase behavior under varying pressures and temperatures, properties of different fluid types, and sampling techniques.
5) Common experiments done to analyze reservoir fluids using pressure-volume-temperature cells
Poster
This document summarizes a hydrogeological study of the Mole Creek Karst system in Tasmania, Australia. The study aimed to identify karst catchments potentially influenced by contamination from an abandoned landfill (the Mole Creek Refuse Disposal Site) and determine if it was affecting water quality in Sassafras Creek. The study used water tracing experiments, hydrogeochemical analysis, and geophysical resistivity surveys. These demonstrated groundwater flow from the landfill through sinkholes into the aquifer feeding Sassafras Creek. Hydrogeochemical analysis detected contamination in Marakoopa Creek within a UNESCO World Heritage site, though the source is unknown. Geophysics identified a drainage pathway beneath a landfill pit transport
Reservoir chachteristic.pptx document file
This document discusses reservoir characteristics including rock and fluid properties as well as drive mechanisms. It provides information on classifying rocks, characteristics needed for hydrocarbon reservoirs such as porosity and permeability, and how properties like grain size and wettability affect permeability. It also discusses fluid properties, phase behavior of hydrocarbon systems, and analysis techniques like coring and core analysis that provide data to understand the reservoir.
Francisco_Javier_Intl_Innovation_EuroFocus_Media_HR
Dr. F Javier Hernández-Molina's research focuses on deep marine sedimentation, particularly identifying bottom currents' depositional and erosional features in the ocean and relating them to oceanographic processes. These bottom-current deposits can potentially serve as hydrocarbon reservoirs or seals. His research aims to better understand these deposits and their implications for paleoclimatology, paleoceanography, slope stability, and hydrocarbon exploration. His background includes a degree in marine geology and over 25 years of research experience studying ancient and modern examples of bottom-current deposits around the world. His research collaborates with oil companies and could help improve prospects for deeper hydrocarbon exploration.
13 fahland further important topics in rock salt geomechanics
This document summarizes topics discussed at the 7th US/German Workshop on Salt Repository Research, Design, and Operation regarding rock salt geomechanics. Three main topics were improving understanding of long-term salt creep through new low-stress creep experiments and high-precision equipment, investigating potential new failure modes in integrity analysis beyond the existing fluid pressure criterion, and reexamining consolidated crushed salt conditions after 15 years at a test site. Additional issues and new topics of interest were also discussed.
12 - NIH 2 - Groundmanagement issues of Hard rocks-Sep-16
Groundwater availability in hard rock regions of Central and Southern India is low due to the unique nature of hard rocks, which have low primary porosity but become porous through weathering and fracturing near the surface. Groundwater occurs in weathered and fractured portions of hard rocks in shallow aquifers, and in more confined settings in deeper carbonate and vesicular rocks. Studies of hard rock aquifers have examined weathering depth, jointing patterns, hydraulic conductivity, groundwater flow and the sustainable yields of wells.
DEVELOPMENTS IN MARINE GAS HYDRATES
This was a project in natural gas engineering (PGE 403).A short literature review on the developments of marine gas hydrates.
Terry Engelder Letter to PNAS Objecting to Publication of Duke Study on Brine...
Terry Engelder Letter to PNAS Objecting to Publication of Duke Study on Brine...Marcellus Drilling News
Penn State professor Dr. Terry Engelder peer reviewed a new study by Duke University on the possible migration of brine (salty water) from thousands of feet below the surface into surface water aquifers. The implication is that drilling fluids may also find their way to the surface along the same pathways. Engelder says in his objections that important issues are not addressed in this study and therefore it does not deserve peer reviewed publication in PNAS.A D Hollinsworth 2015
The document summarizes a study of patchy epidote replacement of plagioclase in metabasic gneisses from Iona, Scotland. The key points are:
1) The gneisses experienced multiple metamorphic events including high-grade metamorphism followed by retrogression. This resulted in albitization of plagioclase and growth of chlorite.
2) Some areas exhibit complete replacement of albite by epidote, forming decimeter-scale patches. Replacement occurred along both diffuse reaction fronts and veins.
3) Pores in the albite provided pathways for fluid infiltration and epidote replacement. The distribution of replacement depends on the interplay between grain-
Similar to 22 hesse capillary controls on brine percolation (20)
V.P. Wright (2020) – Burial corrosion and porosity formation in carbonate res...
V.P. Wright (2020) – Burial corrosion and porosity formation in carbonate res...
How the osmotic strength of formate brines stabilises wellbores in shales
How the osmotic strength of formate brines stabilises wellbores in shales
Elemental geochemistry of_sedimentary_rocks_at_yellowknife_bay_gale_crater_mars
Elemental geochemistry of_sedimentary_rocks_at_yellowknife_bay_gale_crater_mars
Distinguishing gas bearing sandstone reservoirs within mixed siliciclastic-ca...
Distinguishing gas bearing sandstone reservoirs within mixed siliciclastic-ca...
Francisco_Javier_Intl_Innovation_EuroFocus_Media_HR
Francisco_Javier_Intl_Innovation_EuroFocus_Media_HR
13 fahland further important topics in rock salt geomechanics
13 fahland further important topics in rock salt geomechanics
12 - NIH 2 - Groundmanagement issues of Hard rocks-Sep-16
12 - NIH 2 - Groundmanagement issues of Hard rocks-Sep-16
Terry Engelder Letter to PNAS Objecting to Publication of Duke Study on Brine...
Terry Engelder Letter to PNAS Objecting to Publication of Duke Study on Brine...
More from leann_mays
43 international collaboration skb ebs task force overview jove-colon sand2...
This document summarizes work being done by the SKB Task Force related to modeling the engineered barrier system for a spent nuclear fuel repository. It discusses several tasks focused on thermomechanical modeling of bentonite clay buffer and backfill material using data from experiments at the Äspö Hard Rock Laboratory. The tasks aim to improve understanding and modeling of bentonite clay homogenization, water transport, gas transport, and the bentonite-rock interface using benchmarks from experiments. The ultimate goal is to better predict the long-term behavior of buffer/backfill materials under normal and abnormal conditions.
31 session corrosion of spent nuclear fuel canisters bryan sand2017 5541 pe
The document summarizes work related to corrosion of spent nuclear fuel canisters. It discusses experiments conducted at Sandia National Laboratories to study stress corrosion cracking of the canisters, including studies of brine stability, pitting damage quantification and the pit-to-crack transition process. It also outlines planned work for fiscal year 2018, including continued coupon tests under simulated storage conditions and microelectrochemical mapping of stressed samples to study the effects of stress on corrosion susceptibility.
27 task f fluid inclusion and movement in tight rocks wang sand2017-4132 pe...
Sandia National Laboratories researched fluid inclusion and movement in tight rocks. They used modeling and experiments to understand how fluid inclusions migrate under thermal gradients and how their shape and movement are affected by factors like inclusion size, thermal gradient, solubility, and permeability of the surrounding rock. Their goal is to better understand how fluids can move even in very tight rocks and how this movement may impact issues like waste isolation.
13 ensa enun 32 p rail cask transport tests start june 2017 mcconnell sand201...
Sandia National Laboratories and Pacific Northwest National Laboratory are conducting tests of a Spanish-designed spent nuclear fuel transport cask to collect data on stresses to the spent fuel during normal transport conditions. Tests will include transport by heavy-haul truck, ship, and rail in both the U.S. and Europe between June and August 2017. Instrumented mock fuel assemblies will collect strain and acceleration data during all transport stages and mode transfers. The data will help validate that spent fuel integrity is maintained during normal transport vibrations and impacts.
03 dry cask simulator experiments for cfd validation durbin sand2017 4330 c
Sandia National Laboratories conducted experiments using a Dry Cask Simulator (DCS) to validate computational fluid dynamics (CFD) models for spent nuclear fuel storage cask thermal analyses. The DCS uses a scaled prototype boiling water reactor assembly inside a pressure vessel to simulate internal conditions of dry casks. Thermocouples measure temperature profiles under various decay heat and helium pressure conditions to model aboveground and belowground cask storage. Initial testing of the aboveground configuration showed good agreement between experimental temperature measurements and CFD simulations, within estimated uncertainties.
17 laboratory testing approach for intermediate scale borehole heater test mi...
Sandia National Laboratories is preparing to conduct laboratory testing and analysis related to an intermediate scale borehole heater test. The testing will involve analyzing rock core samples, gases, and brines before, during, and after the test to observe the effects of heating. Specific analyses will include measuring core properties like porosity and pore size, as well as analyzing gas and brine compositions through techniques like gas chromatography, ion chromatography, and ICP-MS. Preliminary brine analysis of three samples found them to have a Na-Mg-Cl composition typical of WIPP brines. The laboratory work aims to provide detailed data on material interactions and micro-mechanical processes during heating to inform long-term repository performance.
10 sfwst – disposal in argillite r&d barrier material degradation and int...
The document summarizes research being conducted by Sandia National Laboratories and Los Alamos National Laboratories on disposal of nuclear waste in deep geologic repositories. It discusses several modeling and experimental efforts, including reactive transport modeling to study the effects of decay heat on engineered barrier systems, clay interaction experiments to understand clay-metal interactions during corrosion of waste packages, and international collaborations on projects like FEBEX-DP to characterize the bentonite-concrete interface using X-ray computed tomography. It also summarizes preliminary thermodynamic modeling of steel corrosion and reactive transport modeling of the Closure Test Drift to simulate cement-water interactions.
07 international collaboration activities in disposal r and d relevance to r ...
1) The document discusses DOE's participation in various international R&D collaborations related to nuclear waste disposal, including projects in Switzerland, Sweden, Germany, China, and other countries.
2) These collaborations support the GDSA program by furthering scientific understanding of key disposal processes, improving process models, and providing data to validate GDSA models.
3) Specific collaborations discussed include the Mont Terri project, DECOVALEX, SKB task forces, and a planned HotBENT project, with details provided on how they contribute to modeling and understanding disposal system behavior.
59 an example of a regional geologic evaluation of argillite for disposal of ...
The document summarizes a regional geologic evaluation of the Pierre Shale formation for its potential to host a repository for high-level radioactive waste and spent nuclear fuel. The Pierre Shale has desirable properties like its depth, large extent, high clay content, and stable tectonic setting. The evaluation assesses available data on the formation's stratigraphy, hydrogeology, seismic activity, and other features to evaluate its suitability for long-term repository performance. The Pierre Shale is representative of clay-rich Cretaceous formations that warrant further review for a deep geologic repository.
51 update on the fifth worldwide review international approaches for nuclear ...
The document summarizes a recently released report on international approaches for nuclear waste disposal in geological formations. It describes the content of the report, which reviews the status of scientific and technical advances as of 2016 in nuclear waste disposal programs in 23 countries. It also provides information on how to access the full report online or from the websites listed. Finally, it briefly describes a workshop held in 2016 to discuss the report, noting that it involved participants from 12 countries who presented on waste disposal programs in 21 countries.
49 collaboration with swedish deep drilling project dobson lbnl
This document discusses collaboration between Lawrence Berkeley National Laboratory and Uppsala University on the Swedish Deep Drilling Project (COSC). The COSC project aims to drill two deep boreholes (COSC-1 and COSC-2) to study geological structures and characterize basement rocks and hydrology. COSC-1 will drill through the Seve Nappe to study channel flow, reaching a depth of 2.5 km with 100% core recovery. Funded activities for COSC-1 include logging the borehole to detect flowing fractures, modeling fluid flow, analyzing microbial communities in fractures, characterizing water compositions, and studying fractured core samples.
46 collaboration with clausthal germany on coupled thm modeling rutqvist lbnl
This document summarizes a collaboration between Lawrence Berkeley National Laboratory and Clausthal University on coupled thermo-hydro-mechanical (THM) modeling of salt. It discusses the TOUGH-FLAC and FLAC-TOUGH simulators, benchmarking results, improvements made to both codes, and an example collaboration project modeling heater tests at the Asse mine. The collaboration has improved salt THM modeling through code comparisons and jointly developing new constitutive models.
34 ciscc susceptibility and cgr testing sindelar srnl sti-2017-00323
1) Testing was conducted on teardrop-shaped samples of 304L stainless steel exposed to salt/dust mixtures to evaluate chloride-induced stress corrosion cracking (CISCC) susceptibility and crack growth rates (CGRs).
2) Visual indications of pitting and preliminary CGRs around 0.5 mm/year were observed. Additional testing is needed to better characterize cracking and the influence of sensitization.
3) Residual stresses from welding were identified as a potential driving force for CISCC in spent nuclear fuel canisters. Remote visual examination techniques may have limitations for cracking detection.
4) There is currently no consensus on an ASME code case for canister in-service inspection due to open questions around
33 residual stress simulation and experimental stress replication of mock up ...
This document discusses simulations and experiments related to residual stress and stress corrosion cracking in welded mock-ups. It summarizes residual stress simulations of circumferential and longitudinal welds using finite element analysis and compares results to experimental measurements. It also describes the design of four-point bend experiments using finite element simulations to replicate stress conditions and digital image correlation experiments to validate simulations. The purpose is to model stress corrosion cracking using multiphysics finite element analysis.
32 field test at maine yankee independent spent fuel storage instillation gor...
The document summarizes a field test being conducted at the Maine Yankee Independent Spent Fuel Storage Installation to study chloride deposition and stress corrosion cracking of stainless steel canisters containing spent nuclear fuel. Small specimens will be placed in the air circulation vents of four dry storage canisters and monitored over time to evaluate environmental conditions and potential canister degradation. Analysis indicates the small amount of vent blockage caused by the specimens will not significantly impact temperatures or be considered an off-normal condition. The results are intended to help understand long-term aging of the canister material.
30 fe heater test at mont terri rutqvist lbnl
The document summarizes the Full-scale Emplacement (FE) Experiment being conducted at Mont Terri, Switzerland. The experiment involves heating three heaters embedded in a buffer of bentonite clay and surrounded by instrumented Opalinus clay host rock. The goals are to test the performance of a geological disposal system and monitor thermal, hydrological, mechanical, and chemical processes. International modeling teams are benchmarking models against experimental data. Initial modeling matches observed temperature and moisture profiles well using a reduced vapor diffusion coefficient. Continued monitoring and interpretive modeling will focus more on mechanical stresses developing from swelling and thermal effects over the multi-year experiment.
29 international collaboration in disposal research fs experiment at mont ter...
The document summarizes an experiment conducted at the Mont Terri rock laboratory in Switzerland to study the potential for leakage along faults intersecting an underground radioactive waste repository. The experiment involved injecting water into a borehole intersecting a fault to incrementally increase pressure and monitor permeability changes, seismic activity, and deformation. Seismic events up to magnitude -2.5 were observed during one injection stage when pressure exceeded the strength of the fault-damage zone interface. Analysis showed 75% of fault movement was aseismic and a large pressure drop preceded seismic slip events. Future work includes studying how distant earthquakes may impact fault permeability and long-term injection tests.
28 international collaboration in disposal research mont terri project birkho...
The Mont Terri Project is an international research project studying clay and shale formations for radioactive waste disposal. It provides access to an underground rock laboratory and experimental data from experiments addressing various factors important for disposal. Current and upcoming experiments include studies of thermomechanical-hydrological effects, bentonite and clay barrier performance, gas leakage, diffusion of radionuclides, and cement-clay interactions. The project recently celebrated its 20th anniversary and plans to expand the underground rock laboratory for new experiments.
27b potential hot bent collaboration zheng v0 lbnl
The document discusses a potential collaboration called HotBENT to conduct a joint experiment at the Grimsel Test Site to evaluate the behavior of clay buffers at temperatures of 150-200°C. The experiment would provide data on clay properties at high temperatures that are limited in current models. Partners like NAGRA are interested to justify higher design temperatures that reduce costs and to ensure most of the clay buffer remains intact. A proposed experiment involves placing bentonite in the old FEBEX tunnel at Grimsel up to 200°C to study moisture transport and swelling properties over 5 years.
27a febex dp collaboration overview and related sfwst r and d activities zhen...
The document summarizes research from the FEBEX-DP collaboration studying the full-scale FEBEX bentonite experiment located in Grimsel, Switzerland. It discusses characterization of the bentonite following dismantling of heater #2, including changes to density, water content, mineralogy, and pore water chemistry. THM and THMC models were developed and validated against experimental data to analyze thermal-hydrological-mechanical and chemical processes. Microstructural analysis using synchrotron X-ray microCT provided 3D characterization of the bentonite microstructure. Further work is focused on refining chemical models, analyzing gas evolution and microbial activity, and characterizing the bentonite-concrete interface.
More from leann_mays (20)
43 international collaboration skb ebs task force overview jove-colon sand2...
43 international collaboration skb ebs task force overview jove-colon sand2...
31 session corrosion of spent nuclear fuel canisters bryan sand2017 5541 pe
31 session corrosion of spent nuclear fuel canisters bryan sand2017 5541 pe
27 task f fluid inclusion and movement in tight rocks wang sand2017-4132 pe...
27 task f fluid inclusion and movement in tight rocks wang sand2017-4132 pe...
13 ensa enun 32 p rail cask transport tests start june 2017 mcconnell sand201...
13 ensa enun 32 p rail cask transport tests start june 2017 mcconnell sand201...
03 dry cask simulator experiments for cfd validation durbin sand2017 4330 c
03 dry cask simulator experiments for cfd validation durbin sand2017 4330 c
17 laboratory testing approach for intermediate scale borehole heater test mi...
17 laboratory testing approach for intermediate scale borehole heater test mi...
10 sfwst – disposal in argillite r&d barrier material degradation and int...
10 sfwst – disposal in argillite r&d barrier material degradation and int...
07 international collaboration activities in disposal r and d relevance to r ...
07 international collaboration activities in disposal r and d relevance to r ...
59 an example of a regional geologic evaluation of argillite for disposal of ...
59 an example of a regional geologic evaluation of argillite for disposal of ...
51 update on the fifth worldwide review international approaches for nuclear ...
51 update on the fifth worldwide review international approaches for nuclear ...
49 collaboration with swedish deep drilling project dobson lbnl
49 collaboration with swedish deep drilling project dobson lbnl
46 collaboration with clausthal germany on coupled thm modeling rutqvist lbnl
46 collaboration with clausthal germany on coupled thm modeling rutqvist lbnl
34 ciscc susceptibility and cgr testing sindelar srnl sti-2017-00323
34 ciscc susceptibility and cgr testing sindelar srnl sti-2017-00323
33 residual stress simulation and experimental stress replication of mock up ...
33 residual stress simulation and experimental stress replication of mock up ...
32 field test at maine yankee independent spent fuel storage instillation gor...
32 field test at maine yankee independent spent fuel storage instillation gor...
29 international collaboration in disposal research fs experiment at mont ter...
29 international collaboration in disposal research fs experiment at mont ter...
28 international collaboration in disposal research mont terri project birkho...
28 international collaboration in disposal research mont terri project birkho...
27b potential hot bent collaboration zheng v0 lbnl
27b potential hot bent collaboration zheng v0 lbnl
27a febex dp collaboration overview and related sfwst r and d activities zhen...
27a febex dp collaboration overview and related sfwst r and d activities zhen...
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22 hesse capillary controls on brine percolation
- 1. Capillary controls on brine percolation in rock salt Marc Hesse and Masha Prodanovic The ability the microstructure in rock salt to evolve to minimize the surface energy of the pore- space exerts an important control on brine percolation. The behavior is especially interesting under conditions when brine is wetting the grain boundaries and the pore network percolates at very low porosities, below the transport threshold in typical porous media. We present pore-scale simulations of texturally equilibrated pore spaces in real polycrystalline materials. This allows us to probe the basic physical properties of these materials, such as percolation and trapping thresholds as well as permeability-porosity relationships. Laboratory experiments in NaCl-H2O system are consistent with the computed percolation thresholds. Field data from hydrocarbon exploration wells in rock salt show that fluid commonly invades the lower sectionof the salt domes. This is consistent with laboratory measurements that show that brine begins to wet the salt grain boundaries with increasing pressure and temperature and theoretical arguments suggesting this would lead to fluid invasion. In several salt domes, however, fluid have percolated to shallower depths, apparently overcoming a substantial percolation threshold. This is likely due to the shear deformation in salt domes, which is not accounted for in theory and experiments.