Patents by Inventor Mohammed S. Ameen

Mohammed S. Ameen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10753203
    Abstract: Determining, based on asymmetric spalling of rock at a wall of a wellbore of a hydrocarbon well, that the wellbore is experiencing a spider web borehole failure (SWBF); and in response to the determination: generating a forward model of rock strength for the well (including a rock strength reduction function defining a rock strength reduction factor (r) as a function of angular width of a borehole failure (W)); determining an angular width of the SWBF (WSWBF); determining, based on application of the angular width of the SWBF (WSWBF) to the rock strength reduction function, a rock strength reduction factor (r) for the well; determining, based on the rock strength reduction factor (r) and an unconfined compressive strength of intact rock (Co), an unconfined compressive strength of fractured rock (Cfrm); and operating the well based on the unconfined compressive strength of fractured rock (Cfrm).
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: August 25, 2020
    Assignee: Saudi Arabian Oil Company
    Inventor: Mohammed S. Ameen
  • Patent number: 10662761
    Abstract: Production capability of cased hole perforations in a cased completed well lined with a casing in an under-pressured gas producing reservoir is tested. A sonde of a dipole shear or array sonic (full waveform) acoustic well logging tool is moved in a well bore of the cased completed well in the reservoir across a depth interval of interest, which covers cased hole perforations zones in the reservoir. The well logging sonde has in it an acoustic energy source and acoustic energy receivers. Responses are logged at depth intervals of interest to the transit of Stoneley waves along the casing walls from the acoustic energy source to the acoustic energy receivers. Measures of characteristics (e.g., travel time and attenuation) of the Stoneley wave are obtained. The responses are then processed to indicate production capability of the cased hole perforations.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: May 26, 2020
    Assignee: Saudi Arabian Oil Company
    Inventor: Mohammed S. Ameen
  • Patent number: 10557345
    Abstract: Determining that a minimum circumferential hoop stress (???MIN) of a wellbore drilled into a subsurface formation is less than or equal to a tensile strength (To) of formation rock in the wellbore; determining that a lamination density (DL) of the formation rock is greater than a threshold lamination density (DLthres); determining that a composition of the formation rock is a clay rich laminate; determining that a linear swelling ratio (LSR) of the formation rock is within a specified range; and in response to the determinations, operating the well to inhibit the occurrence of broken-out drilling-induced fractures (BODIFs).
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: February 11, 2020
    Assignee: Saudi Arabian Oil Company
    Inventor: Mohammed S. Ameen
  • Publication number: 20200018159
    Abstract: Provided are embodiments that include: determining, based on asymmetric spalling of rock at a wall of a wellbore of a hydrocarbon well, that the wellbore is experiencing a spider web borehole failure (SWBF); and in response to the determination: generating a forward model of rock strength for the well (including a rock strength reduction function defining a rock strength reduction factor (r) as a function of angular width of a borehole failure (W)); determining an angular width of the SWBF (WSWBF); determining, based on application of the angular width of the SWBF (WSWBF) to the rock strength reduction function, a rock strength reduction factor (r) for the well; determining, based on the rock strength reduction factor (r) and an unconfined compressive strength of intact rock (Co), an unconfined compressive strength of fractured rock (Cfrm); and operating the well based on the unconfined compressive strength of fractured rock (Cfrm).
    Type: Application
    Filed: July 10, 2018
    Publication date: January 16, 2020
    Inventor: Mohammed S. Ameen
  • Publication number: 20190353033
    Abstract: Provided are embodiments that include the following: determining that a minimum circumferential hoop stress (???MIN) of a wellbore drilled into a subsurface formation is less than or equal to a tensile strength (To) of formation rock in the wellbore; determining that a lamination density (DL) of the formation rock is greater than a threshold lamination density (DLthres); determining that a composition of the formation rock is a clay rich laminate; determining that a linear swelling ratio (LSR) of the formation rock is within a specified range; and in response to the determinations, operating the well to inhibit the occurrence of broken-out drilling-induced fractures (BODIFs).
    Type: Application
    Filed: May 21, 2018
    Publication date: November 21, 2019
    Inventor: Mohammed S. Ameen
  • Publication number: 20190017369
    Abstract: Production capability of cased hole perforations in a cased completed well lined with a casing in an under-pressured gas producing reservoir is tested. A sonde of a dipole shear or array sonic (full waveform) acoustic well logging tool is moved in a well bore of the cased completed well in the reservoir across a depth interval of interest, which covers cased hole perforations zones in the reservoir. The well logging sonde has in it an acoustic energy source and acoustic energy receivers. Responses are logged at depth intervals of interest to the transit of Stoneley waves along the casing walls from the acoustic energy source to the acoustic energy receivers. Measures of characteristics (e.g., travel time and attenuation) of the Stoneley wave are obtained. The responses are then processed to indicate production capability of the cased hole perforations.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 17, 2019
    Inventor: Mohammed S. AMEEN
  • Patent number: 8738294
    Abstract: Mechanical properties of formation rock from a subsurface reservoir are measured with a computerized system while a core sample from the formation is being cut, during a process known as slabbing, for other analytical purposes. Forces exerted during cutting of the slab from the original core sample are sensed and stored in the computer system. The recorded force data, cutting time and dimensions of the core sample and the cut slab are processed in the computer system. Measures of characteristics and mechanical properties of the rock, such as rock strength and angle of internal friction, are obtained with the computer system. Separate and specialized testing procedures performed on test core plugs using samples specially extracted from the original core sample are not required.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: May 27, 2014
    Assignee: Saudi Arabian Oil Company
    Inventor: Mohammed S. Ameen
  • Patent number: 8635026
    Abstract: Mechanical properties of formation rock from a subsurface reservoir are measured with a computerized system while a core sample from the formation is being cut, during a process known as slabbing, for other analytical purposes. Forces exerted during cutting of the slab from the original core sample are sensed and stored in the computer system. The recorded force data, cutting time and dimensions of the core sample and the cut slab are processed in the computer system. Measures of characteristics and mechanical properties of the rock, such as rock strength and angle of internal friction, are obtained with the computer system. Separate and specialized testing procedures performed on test core plugs using samples specially extracted from the original core sample are not required.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: January 21, 2014
    Assignee: Saudi Arabian Oil Company
    Inventor: Mohammed S Ameen
  • Publication number: 20130311098
    Abstract: Mechanical properties of formation rock from a subsurface reservoir are measured with a computerized system while a core sample from the formation is being cut, during a process known as slabbing, for other analytical purposes. Forces exerted during cutting of the slab from the original core sample are sensed and stored in the computer system. The recorded force data, cutting time and dimensions of the core sample and the cut slab are processed in the computer system. Measures of characteristics and mechanical properties of the rock, such as rock strength and angle of internal friction, are obtained with the computer system. Separate and specialized testing procedures performed on test core plugs using samples specially extracted from the original core sample are not required.
    Type: Application
    Filed: July 24, 2013
    Publication date: November 21, 2013
    Applicant: Saudi Arabian Oil Company
    Inventor: Mohammed S. Ameen
  • Patent number: 8230918
    Abstract: Reservoir fractures are characterized directly in situ without need to acquire and analyze formation sample cores. A magnetic fluid is injected into an isolated section of the reservoir. The magnitude and directional properties of the enhanced magnetic susceptibility in the section where magnetic fluid injection occurs is measured with a down hole magnetometer. Logs obtained of the enhanced magnetic susceptibility are analyzed to characterize fractures, and petrophysical properties of interest, such as porosity, permeability, and permeability anisotropy of the formation in the vicinity of the fluid injection.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: July 31, 2012
    Assignee: Saudi Arabian Oil Company
    Inventor: Mohammed S. Ameen
  • Publication number: 20120059590
    Abstract: Mechanical properties of formation rock from a subsurface reservoir are measured with a computerized system while a core sample from the formation is being cut, during a process known as slabbing, for other analytical purposes. Forces exerted during cutting of the slab from the original core sample are sensed and stored in the computer system. The recorded force data, cutting time and dimensions of the core sample and the cut slab are processed in the computer system. Measures of characteristics and mechanical properties of the rock, such as rock strength and angle of internal friction, are obtained with the computer system. Separate and specialized testing procedures performed on test core plugs using samples specially extracted from the original core sample are not required.
    Type: Application
    Filed: September 7, 2010
    Publication date: March 8, 2012
    Applicant: Saudi Arabian Oil Company
    Inventor: Mohammed S. Ameen
  • Publication number: 20080290876
    Abstract: Reservoir fractures are characterized directly in situ without need to acquire and analyze formation sample cores. A magnetic fluid is injected into an isolated section of the reservoir. The magnitude and directional properties of the enhanced magnetic susceptibility in the section where magnetic fluid injection occurs is measured with a down hole magnetometer. Logs obtained of the enhanced magnetic susceptibility are analyzed to characterize fractures, and petrophysical properties of interest, such as porosity, permeability, and permeability anisotropy of the formation in the vicinity of the fluid injection.
    Type: Application
    Filed: May 24, 2007
    Publication date: November 27, 2008
    Inventor: Mohammed S. Ameen
  • Patent number: 7126340
    Abstract: Subterranean hydrocarbon reservoirs are analyzed by characterizing the relative presence and character of microfractures in rock samples from the reservoirs. Core samples are saturated with a suspension of magnetite particles of known concentration. The samples are then subjected to an applied magnetic field of known strength. The anisotropy of magnetic susceptibility, or AMS, of the samples is then observed, providing a measure of grain orientation in the samples. The characteristics of the microfractures in the samples are thus available to characterize the reservoirs, and in particular the contribution of the microfractures to the porosity and permeability of formations in the reservoirs.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: October 24, 2006
    Assignee: Saudi Arabian Oil Company
    Inventors: Mohammed S. Ameen, Ernest A. Haliwood