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Keywords: concentration
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SPE Prod & Oper 38 (04): 764–773.
Paper Number: SPE-215849-PA
Published: 08 November 2023
... is 1100×10 4 g/mol. The pipeline friction results show that the drag reducer has good friction reduction and salt resistance. When the concentration in clean water is 0.06%, the maximum friction reduction rate is 71.1%. When the salinity is 5×10 4 mg/L, the calcium ion concentration is 2000 mg/L...
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SPE Prod & Oper 38 (03): 490–503.
Paper Number: SPE-214662-PA
Published: 09 August 2023
... could be increased ( Eng et al. 2013 ). Further, the homogeneity of the polymers could also be improved ( Guo et al. 2019 ). Other than bentonite clay, attapulgite (ATP) clay with a concentration below 10% has been mentioned to improve the hydrogel’s mechanical stability and elasticity ( Liu et al...
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SPE Prod & Oper 38 (03): 471–477.
Paper Number: SPE-214332-PA
Published: 09 August 2023
... by water molecules, in which CO 2 molecules are wrapped inside the cages. Interestingly, most of the Na + and Cl − are aggregated to form localized high concentrations. this part is also where we need to focus on. Fig. 2 Final screenshot of simulation box after 100 ns (purple ball: Na + ; green...
Includes: Supplementary Content
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SPE Prod & Oper 38 (02): 215–242.
Paper Number: SPE-212310-PA
Published: 10 May 2023
.... Metals of various sorts (Ni, V, Fe, Al, Na, Ca, Mg) are found in crude oils and tend to concentrate in trace levels in the asphaltene fraction ( León et al. 2000 ; Mullins et al. 2003 ; Spiecker et al. 2003a ; Al-Sabawi et al. 2011 ; Civan 2015 ; Speight 2001 ). Elemental compositions have...
Includes: Supplementary Content
Journal Articles
SPE Prod & Oper 38 (02): 243–257.
Paper Number: SPE-212366-PA
Published: 10 May 2023
... size, proppant concentration, fracturing fluid viscosity, and proppant concentration ramping schedules. By investigating the impact that controlled design parameters have on perforation erosion, perforation erosion can be better anticipated to deliver improved completion results. There are two major...
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SPE Prod & Oper 38 (02): 286–304.
Paper Number: SPE-212846-PA
Published: 10 May 2023
... formation by manipulating the concentration of a variable in accordance with the result of the sensitivity analysis. Different classification metrics, including the accuracy, precision, F1-score, and recall, were used to compare the performance of the mentioned models. Results in the testing phase showed...
Includes: Supplementary Content
Journal Articles
SPE Prod & Oper 38 (01): 113–124.
Paper Number: SPE-212312-PA
Published: 08 February 2023
.... In this study, the synergistic effects of various IL anion and cation types and concentrations upon microwave emulsion demulsification were investigated. The interfacial tension (IFT) and zeta potential of the ILs and the distribution of oil droplets were measured before and after microwave radiation using...
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SPE Prod & Oper 38 (01): 35–50.
Paper Number: SPE-212269-PA
Published: 08 February 2023
... injection reservoir surveillance chemical flooding methods paraffin remediation spe production npv producer permeability precipitation deposition application scenario composition concentration In the current scenario of variability in oil prices and great uncertainties as to the future...
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SPE Prod & Oper 37 (04): 681–697.
Paper Number: SPE-210573-PA
Published: 16 November 2022
...Shabeeb Alajmei; Jennifer Miskimins Summary Proppant transport in horizontal wellbores has received significant industry focus over the past decade. One of the most challenging tasks in the hydraulic fracturing of a horizontal well is to predict the proppant concentration that enters each...
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SPE Prod & Oper 37 (03): 543–553.
Paper Number: SPE-209818-PA
Published: 10 August 2022
...Nana Sun; Ding Wang; Qing Quan; Lisha Shen; Huina Sun; Ruiyu Su Summary In view of the difficulties in breaking emulsions and removing oil from polymer-produced water, this study systematically analyzes the promotion effect of anion type, cation type, and concentration of ionic liquid on polymer...
Journal Articles
SPE Prod & Oper 37 (03): 431–445.
Paper Number: SPE-204367-PA
Published: 10 August 2022
... the concentration above minimum inhibitor concentration (MIC) for as long as possible. ( Mackay and Jordan 2003 ). In the field, the squeeze process can involve many more steps, including a preflush (aqueous or solvent) and an overflush, amongst others ( Meyers and Skillman 1985 ). One of the key metrics used...
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SPE Prod & Oper (2022)
Paper Number: SPE-209576-PA
Published: 10 August 2022
... out as a water-reject (underflow) stream, and concentrated oil comes out as an oil-reject (overflow) stream. For control purposes, the pressure drop ratio (PDR) across the inlet and the two outlets may be kept constant to maintain separation in the presence of disturbances. However, the PDR control...
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