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Keywords: agent
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Journal Articles
SPE Prod & Oper 38 (03): 478–489.
Paper Number: SPE-214333-PA
Published: 09 August 2023
... between wells is complex. This paper found that after reducing the permeability of the original fracture, refracturing can effectively improve the longitudinal extension range of the new fracture through numerical simulation. Therefore, a controllable permeability temporary plugging agent is studied...
Journal Articles
Journal Articles
SPE Prod & Oper 36 (03): 751–759.
Paper Number: SPE-204478-PA
Published: 11 August 2021
... glda formulation dissolution rate reaction rate pyrite scale experiment binding affinity diffusion coefficient pyrite nasr-el-din spe production dtpa agent chelating agents august 2021 The term “flow assurance” in the oil and gas sector refers to the establishment of safe...
Journal Articles
SPE Prod & Oper 36 (01): 234–244.
Paper Number: SPE-204213-PA
Published: 10 February 2021
... the dispersion of plant gum, which was then added to the oil phase with a certain viscosity to obtain a gel-plug thickener. A depiction of the fluid appears in Fig. 2 . A gel-plug formulation was developed from a compatibility test and formulation adjustment of the thickener, crosslinking agent...
Journal Articles
SPE Prod & Oper 35 (04): 952–978.
Paper Number: SPE-199291-PA
Published: 12 November 2020
... operations as an intensifier to reduce the corrosion rate caused by HCl. Formic, acetic, and lactic acids can be used to dissolve drilling-mud filter cakes. Citric acid is commonly used as an iron-sequestering agent. This paper shows organic acid advances, limitations, and applications in oil and gas...
Journal Articles
Journal Articles
SPE Prod & Oper 35 (04): 836–851.
Paper Number: SPE-199703-PA
Published: 12 November 2020
... pressurization (i.e., fill‐up); injection rate cycling/hesitation fracturing; and mechanical isolation by installing cemented or expandable liners in the lateral followed by plug‐and‐perforated stimulation. These tactics can be used standalone or combined. Particulate diverting agents can be additionally...
Journal Articles
Journal Articles
SPE Prod & Oper 33 (02): 179–195.
Paper Number: SPE-185953-PA
Published: 14 May 2018
... concentrations. Apparent viscosity of the fracturing fluid was measured with a high-pressure/high-temperature (HP/HT) rotational rheometer. All rheology tests were conducted at 300 psia and 180°F with a 3-hour test duration. Further investigations to study the effect of adding chelating agents to the fluid...
Journal Articles
SPE Prod & Oper 33 (01): 131–144.
Paper Number: SPE-188007-PA
Published: 10 November 2017
... these shortcomings. However, these organic acids have displayed problems with solubility and compatibility. Chelating agents show good dissolving power, low corrosion, low sludging tendencies, and excellent iron control, and have been successfully used to replace HCl in certain applications. Furthermore, some...
Journal Articles
SPE Prod & Oper 31 (01): 12–21.
Paper Number: SPE-157426-PA
Published: 23 February 2016
...K.. Sokhanvarian; H. A. Nasr-El-Din; C. A. de Wolf Summary Chelating agents are used to remove various inorganic scales, including sulfates and carbonates. They are also used as standalone stimulation fluids and as iron-control agents during acidizing treatments. The main chelating agents used...
Journal Articles
SPE Prod & Oper 31 (01): 29–46.
Paper Number: SPE-165149-PA
Published: 23 February 2016
... concentrations in all liquid phases of the samples. The effect of several chelating agents on the reaction of VES with Fe(III) was also examined. Experimental results indicate that the apparent viscosity of live VES-1-based acids [20 wt% hydrochloric acid (HCl) and 4 vol% VES-1] increased from approximately 2...
Journal Articles
SPE Prod & Oper 29 (01): 42–50.
Paper Number: SPE-164117-PA
Published: 11 February 2014
...B.R.. R. Reddy; Janette Cortez-Montalvo Summary Hydrolytically degradable polymers (generally aliphatic polyesters) have been used in a variety of applications in the oil field, such as fluid diversion, fluid-loss control, and filter-cake-removal applications. In general, diverting agents and fluid...
Journal Articles
SPE Prod & Oper 28 (03): 277–285.
Paper Number: SPE-163332-PA
Published: 17 June 2013
... loadings of corrosion inhibitors and intensifiers in addition to hydrogen sulfide scavengers and iron control agents. Selection of these chemicals to meet the strict environmental regulations adds to the difficulty in dealing with such wells. Recently, a new environmentally friendly chelating agent...
Journal Articles
SPE Prod & Oper 27 (03): 318–326.
Paper Number: SPE-140751-PA
Published: 25 April 2012
... bromide as the weighting agent. These high-density completion brines are used for hydrostatic pressure control in high-pressure reservoirs. Any fluid losses to the formation during the completion phase of the well could potentially lead to the introduction of the zinc ion to the formation for potential...
Journal Articles
SPE Prod & Oper 26 (03): 270–277.
Paper Number: SPE-141384-PA
Published: 11 July 2011
..., use of an additive package that enhances SI adsorption by crosslinking, and the injection of nondamaging concentrations of kaolinite, calcium carbonate, and organosilane (a solids-fixation agent). The effect of the SI-retention enhancer is modeled as a function of the adsorption level of the additive...
Journal Articles
SPE Prod & Oper 26 (01): 30–40.
Paper Number: SPE-128091-PA
Published: 30 November 2010
..., an amphoteric surfactant, was examined in this work. The prepared surfactant-based live-acid system contained 20 wt% HCl, 4 wt% surfactant, and 1 wt% corrosion inhibitor. Different organic acids/chelating agents were added to live and spent acids. Calcium carbonate particles were used to neutralize live acids...
Journal Articles
SPE Prod & Oper 25 (01): 111–123.
Paper Number: SPE-124926-PA
Published: 01 February 2010
... cases that compare agent predictions to expert diagnoses and quantify the benefits of taking the recommended actions. What was found was that while the correct diagnoses of well performance issues was beneficial, the real benefit was in allowing production engineers to analyze a greater number of wells...
Journal Articles
Journal Articles
SPE Prod & Oper 24 (03): 439–449.
Paper Number: SPE-113656-PA
Published: 07 September 2009
...Niall Fleming; Kari Ramstad; Anne-Mette Mathisen; Alex Nelson; Sam Kidd Summary Applied research has been undertaken to examine the potential of kaolinite combined with a kaolinite-fixation agent to increase squeeze lifetime through alteration of near-wellbore surface characteristics and mineralogy...

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