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:
    non sort: A
    title: New Organic Acid to Stimulate Deep Wells in Carbonate Reservoirs
  name:
    name part: Al-Douri, Ahmad F
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: Nasr-El-Din, Hisham
    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: Carbonate acidizing has been carried out using HCl-based stimulation fluids for decades. However, at high temperatures, HCl does not produce acceptable results because of its fast reaction, acid penetration, and hence surface dissolution, and its high corrosion rate. As a result, alternatives to HCl have been investigated including organic acids. In this work, the reaction of a new organic acid with calcite was investigated using the rotating disk apparatus and coreflood setup. The organic acid was obtained using both a phosphorous-based and iron-based catalyst. The rate of reaction of a 10 wt% solution of the new organic acid was measured using the rotating disk apparatus at temperatures up to 250°F. Low-permeability Indiana limestone (1-5 md) samples of 1.5 in. diameter and 0.75 in. length were used. The effect of disk rotational speed (100-1,500 rpm) was investigated. Samples of the reacted fluid were collected periodically and calcium and iron concentrations were measured using Inductively-Coupled Plasma, and used to determine the acid-rock reaction rate and to study the possibility of precipitation. Also, coreflood experiments at different injection rates and a temperature of 300°F were performed to study the effect of the acid on wormhole propagation in calcite. Low-permeability Indiana limestone (1-10 md) cores used in these experiments have a diameter of 1.5-in. and a length of 6 in. For the phosphorus-based acid, experimental results showed that the rate of calcite dissolution at 205°F was controlled only by the rate of mass transfer of the acid to the surface. However, at 250°F, the reaction was controlled by both mass transfer and by the kinetics of the surface reaction. At 205°F, the reaction rate varied from 7.79E-07 to 4.47E-06 gmol/cm².s, while at 250°F, the range was between 5.82E-07 and 2.72E-06 gmol/cm².s. In coreflood experiments, the phosphorus-based acid caused calcium phosphate precipitation at 300°F, while the iron-based acid achieved breakthr…
  note: by Ahmad Al-Douri.
  note: "Major Subject: Petroleum Engineering"
  note: Includes vita.
  note: Master of Science Texas A & M University 2014 http://hdl.handle.net/1969.1/152449
  note: Includes bibliographical references.
  note: Text (Thesis)
  subject:
    topic: Major Petroleum Engineering
  subject:
    topic: Carbonate Acidizing
  subject:
    topic: Rotating Disk Apparatus
  identifier: http://hdl.handle.net/1969.1/152449
  record info:
    record content source: TXA
    record creation date: 150129
    record change date: 20151206125603.0
    record identifier: in00003505161
    language of cataloging:
      language term: eng