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What is is the reduction of pore space in sediment as a result of the weight of the overlying sediments?
The reduction of pore space in sediment due to the weight of overlying sediments is known as compaction. Compaction occurs as the pressure from the overlying sediments squeezes out water and air from the pore spaces, causing the sediment grains to become more tightly packed together. This process can lead to the formation of sedimentary rocks over time.
What are small spaces between grains of rock?
Small spaces between grains of rock are known as pore spaces. These voids can vary in size and shape, depending on the type of rock and its formation process. Pore spaces play a crucial role in the storage and movement of fluids, such as water and oil, within geological formations. They are significant in fields like geology, hydrology, and petroleum engineering, as they influence the permeability and porosity of rocks.
What opens and closes because of turgor pressure?
Guard cells in plant stomata open and close due to changes in turgor pressure. When the cells accumulate water and become turgid, they bow outwards and open the stomatal pore. Conversely, when water is lost and turgor pressure decreases, the guard cells become flaccid and close the pore.
What has more pore space rock or sand?
Sand has more pore space compared to rock. This is because sand particles are smaller and have less surface area than rock particles, allowing for greater pore space between the grains.
What organism has both a mouth pore and anal pore?
A flatworm has both a mouth pore for ingesting food and an anal pore for excreting waste.
Would you expect the suction in the soil to be 0 at any time?
Soil suction is zero at the phreatic surface. This is the point where the pore water pressure is equal to the pore air pressure. Above this surface pore water pressure becomes increasingly negative compared to pore air pressure and as such matric suctions develop. Below the phreatic surface the pore water pressure becomes increasingly positive and the pore spaces are totally saturated.
What is is the reduction of pore space in sediment as a result of the weight of the overlying sediments?
The reduction of pore space in sediment due to the weight of overlying sediments is known as compaction. Compaction occurs as the pressure from the overlying sediments squeezes out water and air from the pore spaces, causing the sediment grains to become more tightly packed together. This process can lead to the formation of sedimentary rocks over time.
What is the difference between void and pore?
"Void" typically refers to an empty space or a vacuum, while "pore" refers to a small opening in a surface, such as the skin or a membrane. Pores allow substances like liquids or gases to pass through, while a void is an empty area with no substance.
What is the difference between a whitehead and blackhead?
White heads have infection and have been irritated, black heads have dirt clogging the pore but no infection or irritation
What is negative pore pressure?
Negative pore pressure refers to a condition in which the pressure within the pores of a soil or rock mass is lower than the atmospheric pressure. This can lead to reduced effective stress and potentially cause instability in the material, leading to phenomena such as landslides or slope failures. Negative pore pressure is commonly observed in unsaturated soils or during rapid drainage of water from a soil mass.
The air spaces between rock and soil particles are called?
pore space
Does sandy soil or clay soil have bigger pore spaces?
Sandy soil typically has larger pore spaces compared to clay soil. This is because clay particles are much smaller and more tightly packed together, reducing the size of the pore spaces between them. This difference in pore space influences factors like water drainage, aeration, and root penetration in the soil.
What is the difference between a 0.45 micron filter and a 0.2 micron filter meaning which has the bigger pore size?
0.45 is bigger than 0.2 it's that simple
What is the difference between coffee filter paper and filter paper?
There is no difference between a regular laboratory filter and a regular coffee filter. It's only different when you use more expensive laboratory filters with a specific small pore size or special coating
What replaces extracted crude oil?
Simple answer Within the earth, fluids accumulate in the ground in tiny holes -- called pore spaces -- within the matrix of a rock in a geologic rock formation. When these millions of tiny holes in a rock matrix are interconnected, fluids, such as oil, gas and water, will flow through the rock from tiny pore space to tiny pore space. Once the oil and/or gas flows out of the interconnected pore spaces and into the well bore, oil and/or gas that is trapped further away from the well bore also begin to flow toward the well bore refilling those pore spaces. Many times water fills in the spaces behind the moving oil and gas until the well produces only water. Other times, there is nothing to refill the spaces and the oil and or gas expand within the presurized well bore reducing the overall pressure of the well bore. Eventually, the pressure drops to a point where the oil and gas no longer flow. Long answer Within the earth, fluids accumulate in the ground in tiny holes -- called pore spaces -- within the matrix of a rock in a geologic rock formation. When these millions of tiny holes in a rock matrix are interconnected, fluids, such as oil, gas and water, will flow through the rock from tiny pore space to tiny pore space. Oil/gas will flow through different rock formations until they encounter a rock formation that is not permeable (it does not have interconnected pore spaces) the oil/gas become trapped. That rock formation is called a trap rock. When oil/gas are trapped by that trap rock and can no longer flow, they will accumulate in the rock matrix to create an oil and/or gas formation within the interconnected pore spaces of that rock. It is not an open "space" pond, lake or river trapped underground, but oil and/or gas trapped inside the rock formations tiny interconnected holes. These formations can be as shallow as a few hundred feet, or even 38,000 feet or deeper. The weight of the rock that lies above the depth of the oil formation, called the overburden, creates pressure on the pore spaces where the oil and/or gas are trapped. Suddenly releasing that pressure in an uncontrolled manner leads to a blowout, such as the recent blowout of the Macondo well in the Gulf of Mexico. When a well is drilled into an oil and/or gas formation, the company usually carefully controls the pressure of that drilled hole or well bore to contain the pressurized oil and or gas within the oil formation. Once the well is ready to produce oil and/or gas, the company will begin to lower the pressure within the well bore. This serves to attract the oil and/or gas trapped in the higher pressured pore spaces within the oil formation and it flows into the well bore. This is commonly seen in nature as a high pressure weather system tends to flow towards a low pressure area, or as air trapped in an untied balloon releases back into the atmosphere when you let it go. Once the oil and/or gas flows out of the interconnected pore spaces and into the well bore, oil and/or gas that is trapped further away from the well bore also begins to flow toward the lower pressure well bore refilling those pore spaces. As the oil formation ages, more and more oil is released from the reservoir and several aging scenarios are possible. Two of the most common include: 1) because there is nothing to replace the oil/gas being produced out of the formation, the pressure within the reservoir slowly drops as more and more oil/gas production occurs, which leads to slower production, eventually stopping the flow to the well bore; or 2) water is often trapped below oil/gas in the reservoir and as more oil/gas are produced out of the reservoir, the water continues to fill in more and more of the pores orginally filled with oil/gas until water reaches the well bore and no oil/gas production is possible. Even with other undisccussed scenarios, as the well ages and without help from the well operator to enhance that oil/gas pressure, the well is spent and will need to be sealed.
What force pushes groundwater from pore to pore below the water table?
Pressure gradient or hydraulic gradient is the force that pushes groundwater from pore to pore below the water table. A boundary between saturated rock below and unsaturated rock above is the water table.
What is the force of expanding water in the cracks of pores and rocks an example of?
It is called pore water pressure
