Abstract: Forming an anchored plug in a wellbore utilizing grain-like solids to transfer an axial force to a radial force to dissipate the axial force within an effective screening length.

Abstract: Systems and methods for a flow activated choke device that is activated by the choke device directly interacting with the flow of fluid in an upstream direction. More specifically, a choke device formed of chain like materials that is configured to be extended in a first mode and compacted in a second mode, wherein the choke device moves from the first mode to the second mode responsive to an upward fluid flow rate being greater than a flow rate threshold.

Abstract: A device including an expandable material that is configured to be compressed in a first state while traveling through a wellbore and expanded in a second state to form a seal.

Abstract: A method for forming a seal to subterranean fractures or other voids penetrated by a wellbore comprises a particulate sealing formulation of fast sealing and/or fast strengthening. To achieve fast sealing, the particulate formulation is comprised of multiple groups of particulates of a narrow particle size distribution. Furthermore, the method comprises minimizing the spurt loss of a formulation by adjusting its particulates larger than D30, based on evaluation with a slot disk test method. The fast strengthening of the formulation is achieved by fast accumulation of particulates. Furthermore, the method comprises maximizing the fluid loss after spurt of a formulation by adjusting its particulates smaller than D30 or adding some diatomaceous earth or selecting particulates of a D75 larger than 75 microns and with a narrow particle size distribution. At least 5% of the sealing particulates by weight of the total particulates are smaller than 200 micron and acid soluble.

Abstract: A method for forming a seal to subterranean fractures or other voids penetrated by a wellbore comprises a particulate sealing formulation of fast sealing and fast strengthening. To achieve fast sealing, the particulate formulation is comprised of particulates of a wide and continuous particle size distribution. Furthermore, the method comprises minimizing the spurt loss of a formulation by adjusting its particulates larger than D30, based on evaluation with a slot disk test method. The fast strengthening of the formulation is achieved by fast accumulation of particulates onto the initially formed seal. Furthermore, the method comprises maximizing the fluid loss after spurt of a formulation by adjusting its particulates smaller than D30 or adding some diatomaceous earth. At least 5% of the sealing particulates by volume of the total particulates are smaller than 200 micron and acid soluble.

Abstract: A method and system for removing solids or displacing a fluid from a wellbore wherein a plurality of resilient rubber-like flexible reticulated open cell foam elements are dispersed in a fluid and pumped through drill pipe and into the annulus between the wellbore and the drill pipe. In the annulus, the foam elements impact and dislodge solids such as proppants, gravels, drilled cuttings and other solids or a fluid to be displaced and the proppants, etc. or the fluid are carried by the fluid containing the foam elements back to the surface or a different location in the wellbore. At the surface, the fluid containing the foam elements and the proppants, etc., is carried to a shale shaker where the solids and the foam elements are separated from the fluid. The separated solids and foam are collected for disposal and, after adding new foam elements, the fluid can be recirculated down hole.

Abstract: The disclosure teaches a method of sealing fractures in a wellbore wherein the steps comprise pumping a first sealing fluid into a wellbore under pressure, monitoring the hydraulic pressure of the sealing fluid in the wellbore for an indicator of seal initialization, stopping the pumping of fluid into the wellbore, monitoring the hydraulic pressure of the sealing fluid in the wellbore, and pumping a second sealing fluid into the wellbore. The disclosure also includes the method wherein the concentration of sealing materials in the first fluid is greater than the concentration of sealing materials in the second fluid and the method wherein the first sealing fluid contains a higher concentration of larger diameter sealing materials than the second sealing fluid. The disclosure also includes a method wherein the pumping rate change between the first pumping of sealing fluid and the pumping of the second sealing fluid. The first and second sealing fluids can be the same.