Direct Evaluation of Water Sensitivity of Reservoir Rocks. by United States. Bureau of Mines.

Cover of: Direct Evaluation of Water Sensitivity of Reservoir Rocks. | United States. Bureau of Mines.

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SeriesReport of investigations (United States. Bureau of Mines) -- 5422
ContributionsJohansen, R.T., Dunning, H.N.
ID Numbers
Open LibraryOL21745586M

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Sensitivity analysis of reservoir and rock properties during low salinity water injection. Secondary and tertiary oil recovery techniques have not altered the physical properties of reservoir fluids and rocks (Davarpanah,(Rock Compressibility evaluation). Download: Download high-res image (KB)Cited by: 4.

The objective of this study is to simulate the low salinity water injection under different reservoir characteristics of rock compressibility, porosity and net to gross (NTG) on the amount of. If the results of the analysis indicate no sensitivity, attention can then be focused on the production operations rather than on the reservoir rock.

Present Investigation. Investigation of water sensitive reservoir rocks was begun at the Marathon Oil Co.'s Denver Research Center six years ago.

JPT. This book is intended primarily as a text in the course SIG Reservoir Property Determination by Core Analysis and Well Testing at the Norwegian University of Science and Technology.

Part of this course introduces the basic laboratory equipment and procedures used in core analysis and the theoretical aspects of the Size: KB.

Direct Evaluation of Water Sensitivity of Reservoir Rocks. book (1) Matrix density for common rocks or Minerals Rock (Mineral) ρ matrix Sandstone (Quartz) Limestone (Calcite) Dolomite Anhydrite Gypsum Salt It should be noted that the porosity does not give any information concerning pore.

Abstract. A rock capable of producing oil, gas, or water is called reservoir rock.A reservoir rock may be any rock with sufficient porosity and permeability to allow oil and gas to accumulate and be produced in commercial quantities [].Petroleum generally occurs in sandstones, limestones, dolomites, conglomerates, and shales, but sometimes it is also found in igneous and metamorphic rocks.

Knowledge of the porosity of a sample of rock enables us to estimate its pore volume since its bulk volume can be easily determined. If this sample is representative of Direct Evaluation of Water Sensitivity of Reservoir Rocks. book reservoir, i.e., the reservoir rock is the same everywhere, then the pore volume of the entire reservoir can be estimated by Equ.

using the sample’s porosity. Knowledge of the physical properties of the rock and interaction between hydrocarbon system and the formation rock is crucial in understanding and evaluating the performance of a given reservoir.

These data are usually obtained from two main sources: core analysisand well logging. In this course book we describe the analysis of cores. upwards from the source rocks, driven by the differential buoyancy of the oil and the water. In this process most of the water swaps places with the oil since no fluids can escape from the cap rock above the reservoir.

However, the water is not completely displaced as the initial reservoir rock is invariably water-wet, leaving the water-wet. The efficiency of reservoir rock account on different important properties, however in this paper discussing on reservoir rocks properties, porosity and permeability are main topics to focus on.

As discussed in last paper (Assignment I, ) petroleum system is made of different elements which encompass reservoir rock. This is only possible if the nature of the emergence, evolution, and parameter estimation of high grade reservoir rocks at great depths is known and a theory of their forecast is developed.

Over 60 percent of world oil production is currently associated with carbonate reservoir rocks. According to the water sensitivity test results of four core samples taken from the Sargiz reservoir (Table 4) and the water sensitivity test evaluation standards, the water sensitivity index is between -and the formation water sensitivity influence is weak.

A permeable subsurface rock that contains petroleum. Must be both porous and permeable. Reservoir rocks are dominantly sedimentary (sandstones and carbonates); however, highly fractured igneous and metamorphic rocks have been known to produce hydrocarbons, albeit on a much smaller scale The three sedimentary rock types most frequently encountered in oil fields are shales, sandstones, and.

The total, or effective, compressibility of any reservoir rock is a resultof two separate factors, namely, expansion of the individual rock grains, asthe surrounding fluid pressure decreases, and.

Advanced water injection has become an efficient and distinctive technology for developing ultralow-permeability reservoirs. Compared with delayed and synchronous injection, advanced injection has a higher demand for supporting projects, not only including adequate studies of early evaluation and an overall framework planning of water injection before production, but also involving a whole.

Salinity-related tests furnish direct indication of rock-water interaction. They allow evaluation of damage induced by drilling, completion, workover, and injection fluids. Figure 1 illustrates results of a laboratory experiment to evaluate the reaction to reservoir rock with a.

Formation Evaluation MSc Course Notes Coring, Preservation and Handling Dr. Paul Glover Page 33 expensive to obtain and represent a very dilute sampling of the reservoir rock. It is clear that More important changes can occur if the rock contains minerals sensitive to water salinity.


Lynch U.S. GEOLOGICAL SURVEY Water-Resources Investigations Report Prepared in cooperation with the DEPARTMENT OF PUBLIC UTILITIES, CITY OF NEWPORT. Subsea elevation of -1, ft ( m) is marked in the depth track.

Well 11 Water Saturations Flow unit 4 is macroporous but wet (S w = %); this indicates an oil-water contact. Flow unit 3 is macroporous and has intermediate water saturation (S w = 70%). This looks like a transition zone.

For a water wet reservoir, a water drive mech. would be very effective while for an Oil wet reservoir chemical (e.g. surfactants) injection to weaken the attractive forces btw the Oil and the reservoir rock thus making the reservoir more water wet. Purchase Reservoir Characterization - 1st Edition.

Print Book & E-Book. ISBN  Introduction. Porosity is defined as a measure of the capacity of reservoir rocks to contain or store fluids. The fluids stored in the pore spaces within the reservoir rocks could be gas, oil, and water.

High porosity values indicate high capacities of the reservoir rocks to contain these fluids, while low porosity values indicate the opposite. Rock Volume. The total volume of reservoir rock, often referred to as the bulk volume.

Pore Volume. The total volume of pore space within the reservoir as determined by the porosity of the rock. Hydrocarbon Pore Volume. The total pore volume containing hydrocarbons. This is generally the product of pore volume and (1 – water saturation).

The Hook - There are many fine reviews of Reservoir 13 written by my GoodReads friends but it is this one by Kasa Cotugno that convince me I must read this book. Thank you. Thank you. The Line(s) - On the reservoirs the water was whipped up into whitecaps.

• Influence of Rock Types: Water-tightness of a reservoir basin is also very much influenced by the kind of rocks that occur at the reservoir site. If the rock are porous and permeable, they will cause the leakage of water and hence such rock are undesirable at the reservoir site.

• Igneous Rocks: Intrusive igneous rocks like granite, by. The latter occurs when the rock or soil in the reservoir is cavernous or highly permeable. If such storage occurs and a reservoir is lowered rapidly, the drainage to the reservoir from the reservoir bank may be too slow to allow rapid dissipation of pore pressure within the rock or soil mass.

This can produce instability in these masses. CARBONATE RESERVOIR ROCKS. The most interesting and perhaps impressive aspects of carbonate reservoir rocks are their fossil content.

Fossils range from the very small single cell to the larger shelled animals. Prior to the 's, carbonate reservoir rocks were relatively rare and prior to they were all regarded as essentially organic rocks.

A petroleum reservoir or oil and gas reservoir is a subsurface pool of hydrocarbons contained in porous or fractured rock eum reservoirs are broadly classified as conventional and unconventional reservoirs. In conventional reservoirs, the naturally occurring hydrocarbons, such as crude oil or natural gas, are trapped by overlying rock formations with lower permeability, while.

The course of rock material failure is a crucial stage that serves as a precursor for subsequent processes of reservoir sand erosion. The third mechanism is influenced by rock compaction and/or consolidation, which is more likely to happen at greater depths as a direct consequence of overburden and lateral confining pressures.

A good reservoir description costs money and requires an integrated, multi-discipline approach. The direct aims of the static reservoir description are: 1. Extrapolate core data to uncored wells 2. Define quantity and distribution of porosity, saturation, and permeability in each well 3.

Interpolate rock property data between wells 4. Reservoir Sedimentation: Assessment and Environmental Controls appraises the issues of sedimentation in reservoirs and discusses measures that can be employed for the effective management of sediment to prolong the operational life of reservoirs.

It provides information for professional consultants and policymakers to enable them to manage dams in the best possible way. Using the data in the table, plot a bar graph of Rock Sample along the x-axis vs. the Time required to soak up the oil along the y-axis.

As an extension activity for students in the 7 th and 8 th grades the actual amount of oil absorbed by the rock samples can be determined by recording the exact amount of oil added to each rock and then carefully measuring, using a measuring cup, how much oil.

Petrophysics (from the Greek πέτρα, petra, "rock" and φύσις, physis, "nature") is the study of physical and chemical rock properties and their interactions with fluids.

A major application of petrophysics is in studying reservoirs for the hydrocarbon hysicists are employed to help reservoir engineers and geoscientists understand the rock properties of the reservoir.

The high GR sandstone reservoir is mainly and directly caused by abnormally high uranium enrichment, but not the tuff, feldspar or clay mineral. Affected by formation's high water sensitivity and poor borehole quality, the conventional logs can not recognize reservoir and.

The water analysis is used to calculate equilibrium conditions between the dissolved constituents in the geothermal fluid and the reservoir rock minerals. For identification of the reservoir temperature conditions, sensitive parameters have to be evaluated statistically.

Aquifer.-A body of rock that is sufficiently permeable to conduct ground water or other liquid and to yield sufficient quantities of water or other liquid.

Aquitard.-A confined bed that retards but does not totally prevent the flow of water or other liquid to or from an adjacent aquifer. Aquiclude.-A geological. To maximize the production and total recovery of hydrocarbons, oil companies must have a complete understanding of the reservoir rocks and fluids present in their producing fields.

Core Laboratories is the only global provider of services that characterize the porous reservoir rock and all three reservoir fluids. Water Sensitive Reservoirs • Clay expansion -Smectite and mixed-layer clays are water-sensitive (swelling and fines migration)sensitive (swelling and fines migration).

• Clay dispersion -“water shock,” or “salinity shock.”: the dispp p y ersion of poorly-cemented clayy s, such as some of the. The taking of oil and formation water fluid samples at the appraisal stage of field development can provide valuable data later on in field life.

For instance, variation in oil and water geochemistry data can be used to define reservoir compartments within a. Europe Direct is a service to help you find answers to your questions about the European Union The technique of hydraulic fracturing makes use of a liquid to fracture the reservoir rocks.

A rock formations with water-based fluids. In general terms, hydraulics is a topic in applied. The direct differentiation method (DDM) is efficient and accurate, providing an ideal solution to RSA.

This paper extends the DDM significantly for performing RSA of realistic coupled concrete dam-reservoir-foundation systems, in which the material nonlinearity, the solid fluid interaction, the dam-foundation interaction, and the truncation.Simulation of numerical reservoir models with thousands and millions of grid blocks may consume a significant amount of time and effort, even when high performance processors are used.

In cases where the simulation runs are required for sensitivity analysis, dynamic control, and optimization, the act needs to be repeated several times by continuously changing parameters.Formation Evaluation Service-Powered Solutions ; Built on a foundation of flawless execution, our Formation Evaluation organization is ready to advance the understanding of your subsurface.

We have, and continue to, engineer a comprehensive portfolio of differentiated technologies that will enable the complete characterization of your reservoirs.

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