rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Acidizing High-Temperature Carbonate Formations Using Methanesulfonic Acid
  name:
    name part: Ortega, Alexis
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: Nasr-El-Din, Hisham A.
    role:
      role term: thesis advisor.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2015
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: Hydrochloric acid (HCl) is the most commonly used stimulation fluid for high-temperature wells drilled in carbonate reservoirs due to its high dissolving power and low cost. However, the high corrosion rate of HCl on well tubulars could make its use in deep wells non-viable. The current study introduces the novel application of methanesulfonic acid (MSA), a strong organic acid, to increase the permeability of carbonate formations, specifically at temperatures above 200℗ʻF. The objective of the experimental study is to evaluate the performance of MSA as stand-alone stimulation fluid for high-temperature limestone and dolomite formations. Coreflood studies were conducted at temperature up to 320℗ʻF using limestone and dolomite cores and diluted MSA aqueous solutions. A constant injection rate, ranging from 1 to 25 cm3/min, was maintained during the coreflood tests and the differential pressure through the core was measured until acid breakthrough. Samples of the effluent fluids were collected and analyzed using Inductively Coupled Plasma (ICP) to measure the calcium and magnesium concentrations, and a computed tomography (CT) scan of each core was performed after the acid injection to study the characteristics of the generated wormholes. MSA was found effective in creating wormholes in carbonate cores at the temperatures tested. At low injection rates, face dissolution and conical channels were observed in the cores. At intermediate injection rates, the tendency was to create a few dominant wormholes. At high injection rates, ramified wormhole structures were found, with increased branching for increased flow rates. For each condition tested, an optimum flow rate was identified. Additionally, analysis of the coreflood effluent samples showed no sign of methanesulfonate salts precipitation. Demonstration of the effectiveness of MSA in propagating wormholes in carbonate cores will offer the petroleum industry with another alternative strong acid to HCl for stimulating h…
  note: by Alexis Ortega.
  note: "Major Subject: Petroleum Engineering"
  note: Includes vita.
  note: Doctor of Philosophy Texas A & M University 2015 http://hdl.handle.net/1969.1/155026
  note: Includes bibliographical references.
  note: Text (Dissertation)
  subject:
    topic: Major Petroleum Engineering
  subject:
    topic: Matrix Acidizing
  subject:
    topic: Carbonate Reservoirs
  subject:
    topic: Methanesulfonic Acid
  subject:
    topic: Coreflood Study
  identifier: http://hdl.handle.net/1969.1/155026
  record info:
    record content source: TXA
    record creation date: 160226
    record change date: 20170928111957.0
    record identifier: in00003610279
    language of cataloging:
      language term: eng