Matrix acidizing: a fouling mitigation process in oil and gas wells

Abstract

<jats:title>Abstract</jats:title><jats:p>Fouling mitigation in underground reservoirs enhances the permeability and the flow capacity of production or injection wells and is carried out by reservoir stimulation methods such as matrix acidizing. This process is known as the most significant method used to improve the production or injection indices of oil and gas wells as well as water and steam wells. Here, different aspects of this process, its chemical advances and novel high-technologies are compared and discussed in order to reveal their advantages and determine under what conditions they are applicable. Knowledge for adapting the proper acid treatment with the well characteristics is another issue that has been considered in this paper. The final goal is to present the state-of-the-art fouling mitigation methods based on novel experiments, simulations and investigations in order to emphasize the engineering aspects of fouling mitigation in oil and gas wells by matrix acidizing.</jats:p>

Insight on Corrosion Prevention of C1018 in 1.0 M Hydrochloric Acid Using Liquid Smoke of Rice Husk Ash: Electrochemical, Surface Analysis, and Deep Learning Studies

“…Despite its excellent mechanical properties, the material is vulnerable to disintegration due to several factors. The work of [25] elaborates that the internal corrosion of pipelines leads to scale formation that may occur due to acidic HCl, which is pumped to improve the well's permeability and porosity. In addition, the research of [26] shows that the biofilm growth of Pseudomonas aeruginosa as a nitrate-reducing bacteria is accountable for a more corrosive C1018 without a sufficient organic carbon source.…”

Mechanistic analysis of matrix-acid treatment of carbonate formations: An experimental core flooding study

“…Acid fracturing is confined to the carbonate reservoirs and is not used to stimulate the sandstones, shale, or coal-seam reservoirs [ [12] , [13] , [14] ]. The aim of matrix acidizing is to improve the oil production by dissolving formation damage or creating the new pathways within several inches to a foot or two around the borehole [ 15 , 16 ]. It is also used to develop the wormhole network and to evade any induced damage prompted by treatment fluid and pre-flush/post-flush fluids [ 17 , 18 ].…”

Effective inhibition of T95 steel corrosion in 15 wt% HCl solution by aspartame, potassium iodide, and sodium dodecyl sulphate mixture

“…The T95-2 steel grade (for convenience, T95 is adopted in the manuscript) is known for its high strength and resistance to sulphide stress corrosion making them the preferred material for oil and gas well tubing 13 , 14 . Nevertheless, well-stimulation activities such as acidizing whereby a strong acid solution is pumped into a reservoir to dissolve flow channel barriers 15 affect the corrosion resistance property of the tubing negatively.…”