... and after CO 2 extraction. Initially, the shale oil underwent repeated CO 2 extractions and the variations in wax precipitation temperature and crystallization characteristics were analyzed. Subsequently, chromatographic column analysis was employed to examine the crude oil compound composition before...

... Abstract This paper presents a workflow for designing the optimal injection brine composition for an offshore carbonate reservoir. The crude oil from this reservoir has a very low total acid number (0.01 mg KOH/g), leading to the expectation that injecting diluted seawater would...

.... To further explore the reservoir adaptability of microbubbles in low permeability reservoirs and analyze the interaction mechanisms between microbubbles and crude oil, this study focused on the generation of microbubble by microfluidic method and the conformance performance characteristics of microbubbles...

... substance into the reservoir to change the interfacial and flow properties of the crude oil. Three major categories of EOR have been found to be commonly useful, thermal recovery, gas injection and chemical injection. Implementing an EOR technology in the field is a vast exercise where the first step...

... is also mentioned for a proper understanding of the whole system. The method used in this well will prove to be an economical option for lifting and producing old wells if there are no communication profiles between casing and tubing annulus. multiphase pump liquid crude oil petroleum engineer...

... Abstract One of Sudanese fields has a heavy crude oil which has a high Total Acid Number (TAN) and high viscosity, can cause a lot of problems in production operation, transport, and storage facilities. The effect of ethanol dilution on the rheological properties of crude (especially...

...) to facilitated more accurate estimation of B o , ( El-Sebakhy, 2007 )forecast the PVT properties of crude oil system using machine learning algorithm support vector machine (SVM), ( Sulaimon, 2014 ) In this work, developed a new correlation for estimating B o using a group method of data handling (GMDH...

... of injecting gas into the tubing at a predetermined depth in order to lift the crude oil to the surface. Gas lift is applied to a well when the reservoir pressure falls to such a level that it does not produce without application of external energy. There are mainly two types of gas lift which are Continuous...

... to reduce the interfacial tension and mobilize the trapped oil inside the pores. As the surfactant slug flows in the porous media, surfactants interact with the crude oil with the aim of extracting the oil out of the pores (G. Hirasaki & Zhang, 2004 ). When taking a close look at the interactions...

... confirmation of emulsion formation by orifice type inflow control devices in Pyrenees field horizontal well completions and proceeds to characterise the emulsions formed. A purpose built flow rig combined Pyrenees crude oil and produced water under low shear, simulating reservoir flow conditions, before...

... the gelling structure well. The other stages of wax deposition would be the objectives for our future work. This work would provide the understanding as to how the gelling phenomenon occurs and varies with changes in the operating flow conditions of crude oil in a sample pipeline. In this work...

... characterization proppant proppant surface droplet characteristic slide 25 contact angle value crude oil society of petroleum engineers contact angle measurement proppant particle wettability Introduction Hydraulic fracturing proppants have been widely utilized to enhance the productivity...

... pressure. Asphaltene Inhibitor models were generated from the reference model on the basis of comprehensively interpreted data containing available Asphaltene Inhibitor characteristic information. In the Asphaltene Inhibitor models, pseudo heavy components of the crude oil used in Dynamic Asphaltene...

... according to the changes of pore size and rock composition before and after CO 2 action. Supercritical CO 2 injection increases the saturation pressure, expansion coefficient, volume coefficient, density, and compressibility of crude oil, which are the main mechanisms of fracturing energy increase...

... Abstract A clear description of the wettability of carbonate rocks poses numerous challenges due to its non-uniformity and uncertainty caused by complex pore systems and weak fluid/rock interactions. Aging in the crude oil and spontaneous brine imbibition of core samples in the laboratory...

... for treatment. Dispersion testing was mainly carried out using Asphaltene Differential Aggregation Probe Test (ADAPT) technique, whereas deposition tests were conducted on a customized Asphaltene Dynamic Deposition Loop (ADDL) test. Crude oil characterization indicated presence of unstable asphaltene fraction...

... crude oils covering a wide range of geographical regions. The built BDTR model is more accurate and it outperforms the most commonly used empirical correlations and the previous machine learning models in predicting P b and B ob in terms of the average absolute percent relative error. Furthermore...

... volume diffusion method for the displacement mechanism of CO 2 injection in the North Sea Chalk Field. The experiment conducted with this method not only verified the importance of the diffusion mechanism, but also emphasized that the mutual diffusion between crude oil and CO 2 can weaken...

... Implementation biostimulation crude oil aerobic bacteria South Sumatera abundance anaerobic bacteria nutrient injection Oil Viscosity Upstream Oil & Gas reservoir total aerobic bacteria molasses interfacial tension Compound oil recovery viscosity microorganism bacteria Bentayan Field...

... exports, driving the change of the oil and gas geopolitical structure. Second, the global demand for crude oil grew moderately, slower than that for natural gas. Third, exploration investment plummeted under the low oil price, while newly proven reserves around the world continued to decrease. Fourth...