公开(公告)号：US20210310344A1

公开(公告)日：2021-10-07

申请号：US16840081

申请日：2020-04-03

Applicant: Saudi Arabian Oil Company ,  KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Ayman AL-NAKHLI ,  Amjed Mohammed HASSAN ,  Alade Olalekan SAHEED ,  Mohamed Ahmed Nasr Eldin MAHMOUD

IPC: E21B43/24 ,  E21B49/00

Abstract: Methods, systems, and compositions for increasing hydrocarbon production from a wellbore where the wellbore or a nearby hydrocarbon reservoir is suffering from water blockage, one method including identifying water blockage in a rock sample of a formation via increased capillary pressure in the rock sample; formulating an exothermic reaction component to remove water blockage from a reservoir rock in situ via heat and pressure release, the reservoir rock type the same as the rock sample; injecting the exothermic reaction component into the wellbore; and allowing the exothermic reaction component to react to remove water blockage in situ to decrease capillary pressure of the reservoir rock without substantially changing porosity of the reservoir rock.

公开(公告)号：US20250065286A1

公开(公告)日：2025-02-27

申请号：US18815212

申请日：2024-08-26

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Arshad RAZA ,  Guenther GLATZ ,  Mohamed MAHMOUD ,  Mobeen MURTAZA ,  Alade Olalekan SAHEED ,  Esmail Mohamed Ali MOKHEIMER ,  Muhammad Shahzad KAMAL

IPC: F03G7/00

Abstract: A thermochemical engine that includes a reaction chamber having a nitrite source inlet, an ammonium source inlet, and a gas outlet, and a gas-driven energy transducer coupled to the reaction chamber such that a gas produced in the reaction chamber moves the gas-driven energy transducer in a process of exiting the reaction chamber via the gas outlet. The thermochemical engine is configured to produce the gas under pressure by reacting in the reaction chamber a nitrite source comprising a nitrite ion and an ammonium source comprising an ammonium ion in the presence of water at a reaction temperature of 50 to 150° C.