King Fahd University of Petroleum and Minerals

Saudi Arabian Oil Company

Sagheer A Onaizi

Mustapha Iddrisu

Zuhair Omar Malaibari

Reyad Awwad Shawabkeh

Nabeel Salim Abu-Ghander

Salaheldin Elkatatny

Ashraf Ahmed

Aqil Jamal

Mazen Khaled

Ali M Alkadhem

Fayez Nasir Al-Rowaili

Umer Zahid

Amin Ali Ali Al-fakih

Waleed Ahmed Yaslam Al-awsh

Monther Qassim Ahmed Al-koshab

Mohammed Ali Al-osta

A cement paste composition includes a curable component including a cementitious material and a zeolitic imidazolate framework-67 (ZIF-67) present in an amount of 0.01 to 3% by weight based on a total weight of the cementitious material. The composition further includes water in an amount of 30 to 50% by weight based on a total weight of the cement paste composition. A cured specimen made from the cement paste composition has a compressive strength of 30 to 80 megapascal (MPa) according to ASTM C109/C109M-21 standard test method, and a direct tensile strength of 1.2 to 2.2 MPa according to ASTM C307-18 standard test method. The ZIF-67 particles are uniformly distributed throughout the cured specimen. A method of producing the cement paste specimen.

Cement paste composition

A method of removing hydrogen sulfide from a subterranean geological formation includes injecting a drilling fluid suspension in the subterranean geological formation. The drilling fluid suspension has a pH of 10 or more and includes a layered triple hydroxide material, including manganese, cobalt, and iron, in an amount of 0.01 to 0.5 precent by weight of the drilling fluid suspension. The method further includes circulating the drilling fluid suspension in the subterranean geological formation and forming a water-based mud and scavenging the hydrogen sulfide from the subterranean geological formation by reacting the hydrogen sulfide with the layered triple hydroxide material in the water-based mud.

Wellbore and geologic formation desulfurization process

A method of removing hydrogen sulfide from a subterranean geological formation includes mixing a zinc-imidazolate material, ZIF-8, in an amount of 0.1 to 2.5 percent by weight with an organic liquid containing one or more unsaturated oils to form a drilling fluid suspension with a pH of 10 or more. The method includes injecting the drilling fluid suspension in the subterranean geological formation, circulating the drilling fluid suspension in the subterranean geological formation to form an oil-based mud, and scavenging hydrogen sulfide from the subterranean geological formation.

Method of removing hydrogen sulfide from a subterranean geological formation with a zeolitic imidazolate framework in waste cooking oil-based drilling fluids

A process for removing hydrogen sulfide (HS) from a HS-containing gas composition includes charging a liquid to a reactor under continuous agitation and dispersing particles of a zinc-based zeolitic imidazolate framework-8 (ZIF-8) in the liquid to form a ZIF-8 mixture. The method further includes introducing the HS-containing gas composition to the reactor containing the ZIF-8 mixture under continuous agitation and passing the HS-containing gas composition through the ZIF-8 mixture. In addition, the method includes adsorbing the HS from the HS-containing gas composition onto the ZIF-8 to remove the HS from the HS-containing gas composition and form a purified gas composition.

Process for removing hydrogen sulfide from sour gases

A process for simultaneous removal of hydrogen sulfide (HS) and heavy metals from mixture includes charging a contaminated aqueous composition containing heavy metal ions to a reactor. The process also includes passing a HS-containing gas composition via a plurality of gas spargers through the contaminated aqueous composition present in the reactor to form a HS-containing contaminated aqueous composition and a purified gas composition. The process further includes reacting the HS from the HS-containing contaminated aqueous composition with the heavy metal ions in the HS-containing contaminated aqueous composition to form a metal sulfide precipitate in a metal-sulfide-containing contaminated aqueous composition. In addition, the process includes at least partially introducing the metal-sulfide-containing contaminated aqueous composition to a solid-liquid separator and removing the metal sulfide precipitate from the metal-sulfide-containing contaminated aqueous composition to form a purified aqueous composition.

Process for simultaneous removal of hydrogen sulfide and heavy metals

A method of removing hydrogen sulfide (HS) from a subterranean geological formation using a nanocomposite material includes injecting a drilling fluid suspension with a pH of 10 or more containing a nanocomposite material in an amount of 0.01 to 1.5 percent by weight of the drilling fluid suspension into the subterranean geological formation. The nanocomposite material is a layered triple hydroxide material including copper, magnesium, iron, and a zeolitic imidazolate framework-67. The method further includes circulating the drilling fluid suspension in the subterranean geological formation and forming a water-based mud and scavenging the hydrogen sulfide from the subterranean geological formation by reacting the hydrogen sulfide with the nanocomposite material in the water-based mud.

Hydrogen sulfide treatment method for crude oil/sour gas

A method of removing hydrogen sulfide from a subterranean geological formation includes injecting a drilling fluid suspension in the subterranean geological formation. The drilling fluid suspension has a pH of 10 or more and includes a layered triple hydroxide material, including manganese, copper, and aluminum, in an amount of 0.01 to 1.5 percent by weight of the drilling fluid suspension. The method further includes circulating the drilling fluid suspension in the subterranean geological formation and forming a water-based mud and scavenging the hydrogen sulfide from the subterranean geological formation by reacting the hydrogen sulfide with the layered triple hydroxide material in the water-based mud.

Method for treating a well bore to remove hydrogen sulfide

A process for removing hydrogen sulfide (HS) from a HS-containing gas composition includes charging a liquid to a reactor under continuous agitation and dispersing particles of a CuMgAl compound in the liquid to form a CuMgAl complex mixture. The CuMgAl compound includes CuMgAl layered triple hydroxides and CuMgAl layered triple oxides. The method further includes introducing the HS-containing gas composition to the reactor containing the CuMgAl complex mixture under continuous agitation and passing the HS-containing gas composition through the CuMgAl complex mixture. In addition, the method includes adsorbing and removing HS from the gas composition by the CuMgAl complex mixture to form a purified gas composition.

A process for removing hydrogen sulfide (HS) from a HS-containing gas composition includes charging a liquid to a reactor under continuous agitation and dispersing particles of a graphene supported mixed-metal hydroxide composite in the liquid to form a graphene supported mixed-metal hydroxide composite mixture. The method further includes introducing the HS-containing gas composition to the reactor containing the graphene supported mixed-metal hydroxide composite mixture under continuous agitation and passing the HS-containing gas composition through the graphene supported mixed-metal hydroxide composite mixture. In addition, the method includes adsorbing the HS from the HS-containing gas composition onto the graphene supported mixed-metal hydroxide composite to remove the HS from the HS-containing gas composition and form a purified gas composition.

A process for removing hydrogen sulfide (HS) from a HS-containing gas composition includes charging a liquid to a reactor under continuous agitation and dispersing particles of a cobalt-based zeolitic imidazolate framework-67 (ZIF-67) in the liquid to form a ZIF-67 mixture. The method further includes introducing the HS-containing gas composition to the reactor containing the ZIF-67 mixture under continuous agitation and passing the HS-containing gas composition through the ZIF-67 mixture. In addition, the method includes adsorbing the HS from the HS-containing gas composition onto the ZIF-67 to remove the HS from the HS-containing gas composition and form a purified gas composition.

A method of removing hydrogen sulfide from a subterranean geological formation includes injecting a drilling fluid suspension in the subterranean geological formation. The drilling fluid suspension has a pH of 10 or more and includes a layered triple hydroxide material, including manganese, cobalt, and iron, in an amount of 0.01 to 0.5 percent by weight of the drilling fluid suspension. The method further includes circulating the drilling fluid suspension in the subterranean geological formation and forming a water-based mud and scavenging the hydrogen sulfide from the subterranean geological formation by reacting the hydrogen sulfide with the layered triple hydroxide material in the water-based mud.

Process and material for removing hydrogen sulfide from subterranean geological formations during drilling operations

A method of removing hydrogen sulfide from a subterranean geological formation includes mixing a cobalt-imidazolate material with an organic liquid containing one or more unsaturated oil to form a drilling fluid suspension with a pH of 10 or more. The cobalt-imidazolate material is a ZIF-67 and is present in an amount of 0.1 to 2.5 percent by weight of the drilling fluid suspension. The method further includes injecting the drilling fluid suspension in the subterranean geological formation and circulating the drilling fluid suspension in the subterranean geological formation and forming an oil-based mud to scavenge hydrogen sulfide from the subterranean geological formation.

Method of removing hydrogen sulfide from a subterranean geological formation with an imidazolate-based nanomaterial in an oil-based drilling fluid

A method for removing hydrogen sulfide (HS) from a HS-containing gas composition, including charging an aqueous media to a reactor under continuous agitation, dispersing particles of a composite in the aqueous media to form a composite mixture, continuously agitating the composite mixture, introducing the HS-containing gas composition to the reactor containing the composite mixture under continuous agitation and passing the HS-containing gas composition through the composite mixture, and adsorbing and removing HS from the gas composition by the composite mixture to form a purified gas composition. The composite contains a XMgAl mixed hydroxide, where X is Zn, Co, Mn, or Cu, and a zeolitic imidazolate framework-8 (ZIF-8). Particles of the XMgAl mixed hydroxide are dispersed within pores of the ZIF-8.

Process for removing hydrogen sulfide from sour gases with ZIF-8 mixed metal hydroxides composites

A drilling fluid composition includes a base fluid; at least one additive selected from the group consisting of an anti-foaming agent, a fluid-loss additive, a viscosity modifier, a shale stabilizer, an alkali compound, a bridging agent, and a weighting agent; and 0.01 to 0.5 weight percentage (wt. %) of particles of steel slag, based on a total weight of the drilling fluid composition. A method for reducing a hydrogen sulfide (HS) content of a HS-containing subterranean formation. A process for removing HS from a HS-containing gas composition by the drilling fluid composition.

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Dhahran, Saudi Arabia

Sagheer A Onaizi