China is the third largest producer of tight sandstone gas in the world, and by 2020, the annual production of tight sandstone gas has reached 470 × 10 8 m 3 . However, tight sandstone reservoirs have characteristics such as low porosity and low permeability, making their extraction difficult. The combination of horizontal well drilling …

However, tight sandstone gas production capacity is limited, since these natural gas reservoirs are characterized by low porosity and permeability. Relevant studies indicated that the pore structure of sandstone reservoirs has an important influence on fluid migration. Strong heterogeneity in pore structures impedes migration of fluids or gas ...

Geological Magazine, 2006. A vast sequence of quartz-rich sandstone was deposited over North Africa and Arabia during Early Palaeozoic times, in the aftermath of Neoproterozoic Pan-African orogeny and the …

Sand production is a troublesome problem in the petroleum industry, especially in relation to weakly consolidated formations.In this work, a visual experimental apparatus, which allows sand particles to be observed, has been constructed to simulate sand production in weakly consolidated sandstone core.The experimental apparatus …

Reasonable production allocation of tight sandstone gas reservoirs is an important basis for efficient development of wells. Combining multiple mathematical models, the modified flowing ...

tight sandstone reservoirs are highly complex and petroleum flow does not thereby con-form to Darcy's law [14–20]. Multiple mathematical methods have been used to predict and understand the production capacity of oil reservoirs based on well logging curves and production test results.

The gas production enhancement in tight sandstone reservoirs is achieved by methods that are categorized into three essential mechanisms in this research: (1) creating new fractures during refracturing to enhance fracture network and provide more fluid flow channels; (2) improving the flow resistance of water; (3) reserving the …

In this study, a model of inter-well connectivity in multi-layer sandstone reservoirs was established for the first time. The production performance of the model injection–production well was optimized in real time by a historical fitting and production optimization algorithm and then applied to real reservoirs, so that it could effectively ...

Sandstone can be found all over the world, as it is a common sedimentary rock that forms from the accumulation and cementation of sand-sized grains. Sandstone deposits can be found in a variety of settings, including river and stream beds, beaches, deserts, and even underwater. Some …

Multilayer commingled production is a commonly used oil and gas development method for tight sandstone gas reservoirs. Generally, double-pipe parallel long cores are used to simulate the process of multilayer commingled development in actual reservoirs. According to the geological characteristics of the gas r In addition, the …

Tight sandstone gas in the Linxing Block, eastern Ordos Basin, has been successfully exploited. The high performance is mainly a result of the special geological conditions. The key geological controls for high production have been discussed on the basis of seismic data, field observation, sample features, mercury porosimetry, mechanical ...

rence of sand production will bring damage to the well and facilities and result in economic loss; in addition, the regular production of the oilfield will be affected. Although the approach of "complete sand control" can reduce the rate of sand production, the oil production rate is also affected and is reduced severely.

This book is divided into six chapters: (1) geologic characteristics of unconsolidated sand heavy oil reservoirs and concept of sand management technology; (2) sand production mechanisms and its effect on reservoir petrophysical quality; (3) sand production quantity prediction and well productivity evaluation methods, especially for …

Based on the in-house studies and field successful production of heavy oil reservoirs in area "D" in China, a set integrated technologies for developing unconsolidated sandstone heavy oil reservoirs with strong aquifer support had been developed and optimized, which includes cyclic steam stimulation, horizontal wells, mechanical sand ...

In an unconsolidated sandstone reservoir of a deepwater gas field, due to the reduction of the rock compaction by deepwater, sand production is more likely to occur in the reservoir during production under certain production pressure differences. Therefore, it is important to accurately control the production pressure difference. A …

Since 2011, production of sweet high gravity oil from the Upper Devonian Berea Sandstone in northeastern Kentucky has caused the region to become the leading oil producer in the state. Remarkably, Berea oil is being produced at depths of 2,200 ft or less and in an area in which the prospective source rocks—the overlying Mississippian …

When the threshold pressure gradient is considered, the MFHW production rate decreases obviously. The fracture length has a greater impact on the production rate than flow conductivity. The researched results have practical significance to some extent on improving the flow theory of MFHW in tight sandstone oil reservoirs.

Glass Production: Crushed sandstone serves as a key ingredient in glass manufacturing, contributing to its strength and clarity. Abrasives and Sandblasting: Sandstone finds use …

Sandstone, simply put, is sand cemented together into rock — this is easy to tell just by looking closely at a specimen. But beyond …

With the grade of hydrocarbon resources becoming poorer, tight sandstone gas reservoirs may serve as the key to the enhancement of both reserves and productivity.

Sandstone is a sedimentary rock composed of sand sediments that were fragmented from pre-existing rocks and minerals through physical weathering actions such as wind, gravity, and flowing …

Laboratory experiments have indicated that as the injection–production cycle increases, the water saturation of different parts of a gas–water two-phase sandstone underground gas storage reservoir will decrease, and the decrease in amplitude is more apparent in the high-permeability area [[32], [33], [34]].

Summary. The decrease of pore pressure during hydrocarbon production (depletion) leads to compaction of the reservoir, which in turn changes the stresses acting on the reservoir. The prediction of reservoir compaction and its consequences is usually based on laboratory experiments performed under uniaxial strain conditions, i.e., …

Sandstone texture directly affects pore type and geometry. Knowing what textures and fluids to expect, ... At 1–10 md, the reservoir probably requires stimulation for oil production. Effect of authigenic clays. Figure 2 Comparison of porosity-permeability relationships for kaolinite-, chlorite-, and illite-cemented sandstones.

Tight sandstone gas (TSG) reservoirs in China display such characteristics as low porosity and permeability, naturally fractured, partially ultra-low water saturation, high capillary pressure, abnormal formation pressure and high damage potential. Over 10 years, a set of protection technology of temporary shielding, gas drilling, and under balanced …

DOI: 10.1016/j.conbuildmat.2024.136576 Corpus ID: 269751476; Production of low-CO2 ternary binder using red sandstone, cement, and granulated blast furnace slag: A comprehensive performance analysis

The purpose of this paper is to simulate natural sandstone rock and come-up with a homogeneous compacted rock with known properties. Many scholars investigated the effect of some sedimentation and compaction factors on rock properties, but few attempts to manufacture an artificial sandstone matrix with wide ranges of rock …

Sandstones are economically important as major reservoirs for both petroleum and water, as building materials, and as valuable sources of metallic ores. …

The consequences of sandstone reservoir rock failure may lead to sand production. This phenomenon can have negative impact on lifting cost and economic of any field development. Metal erosion due to sanding can lead to loss of integrity and hydrocarbon leakage. Poor decision on the type of completion can risk the viability of the …

The sandstones are characterized by different types of hydrocarbon production and shows. The values range from 0.015% to 19.9%, and show a fairly good correlation with the hydrocarbon production/shows, which are qualitatively suggestive of reservoir hydrocarbon abundance and petroleum migration.