This paper examines the hydro-mechanical aspect of the sand production problem and sets the basic frame of the corresponding mathematical modelling. Accordingly, piping and surface erosion effects are studied on the basis of mass balance and particle transport considerations as well as Darcy's law. The results show that surface erosion is accompanied …
Sand control is an ongoing challenge in numerous hydrocarbon-producing wells in sand-rich reservoirs. Sand production in these wells can cause damage to equipment, reduce production rates, and lead to erosion that can damage subsea equipment, production equipment, well completions, and surface facilities. This problem can compromise the …
mechanical characteristics when subjected to depressurization. In previous field-scale gas hydrate production tests, the sediments exhibited uncontrolled sand production, resulting in premature termination of the well tests [1-2]. Motivated by these incidents, Uchida et al. [3] developed an analytical thermo-hydro-mechanical sand production
Inner Mongolia is located in the cold region of northern China, where concrete structures exposed to water environments for a long time not only suffer from erosion but also undergo damage due to freeze-thaw cycles [6], [7].Hence, investigating the mechanical characteristics and work performance of blended sand concrete, along with comprehending …
well-sorted sand formations in the size ranges ( code FLAC3D-Tough (0.05 mm) are 0.3e1 cm/s in the water saturated medium (Eichhubl and Boles, 2000). In this state, the sand will fluidize to dramatically in-crease hydraulic conductivity. Fig. 2 summarizes the schematic steps integrating the production of sand and subsequent fluid-
Minimal sand production; Low production rates; Economically viable well service; Rate restriction. Restricting the well's flow rate to a level that reduces sand production is a method used occasionally. The point of the procedure is to sequentially reduce or increase the flow rate until an acceptable value of sand production is achieved.
Sand production can plug tubing, casing, flowlines and surface vessels. It can erode equipment that leads to loss of well control or unwanted fluid emissions. ... The stress that causes the rock to fail includes the mechanical stress that results from the overburden and the drag forces associated from viscous flow of fluids through the rock ...
DOI: 10.1016/j.ijmultiphaseflow.2022.103979 Corpus ID: 246358803; Microscopic mechanical analysis of sand production using a new arbitrary resolved-unresolved CFD-DEM model @article{Wang2022MicroscopicMA, title={Microscopic mechanical analysis of sand production using a new arbitrary resolved-unresolved CFD-DEM model}, author={Yin Wang …
The critical limits for mechanical rock failure and hydrodynamic sand production were defined at sand factors equal to 1 in absolute terms. The sand model results show two distinct gradient points observed for laboratory plots of sand elastic properties: core displacement length defined as the loading point of mechanical rock failure and the ...
Sand production is a complex physical process that depends on the external stress and flow rate conditions as well as on the state of the material. Models developed for the prediction of sand production are usually solved numerically because of the complexity of the governing equations. Testing of new sand production models can very well be performed …
In this way both the onset of sand production and the mechanical failure point will be met earlier, that is at lower effective external stress. The cavity failure experiments were simulated theoretically using the numerical code 3DBORE (Papamichos et al. 1996). The simulations are based on a hollow cylinder geometry, which corresponds to the ...
I take a typical ultra-deep tight sandstone gas reservoir located in Tarim Basin as an example to investigate the rare sand production problem. The situation of sand production was presented, and then conventional analyses were conducted. Six tight sandstone core plugs were selected to conduct rock mechanical tests before and after salt precipitation. Ultimately, …
Sand production may be inevitable in unconsolidated sandstone formation with permeability between 0.5 to 8 darcies (Jon carlson et al., 1992) In addition, reservoirs with low formation strength (<1000 psi) ... are classified as mechanical and chemical one (Dees, 1992). Mechanical methods of sand control include using liners, screens or gravel ...
Summary. Sand production is a serious problem in oil and gas wells, and one of the main concerns of production engineers. This problem can damage downhole equipment and surface production facilities. This study presents a sand production case and quantifies sanding risks for an oil field in Iraq.The study applies an integrated workflow of constructing 1D …