Patent classifications
C09K8/50
Primary proppant flowback control
Techniques of the present disclosure relate to proppant flowback control using a plug and perf completion. A method comprises disposing a resin in at least one cluster of fractures of a stage; disposing an activator for the resin in the stage; displacing the activator from the wellbore and into the at least one cluster of the stage with a plug attached to a perforating apparatus; setting the plug such that the resin and the activator are contained in the stage; and perforating a subsequent stage.
Method and system for extracting reservoir fluid sample
A fluid extraction tool can include a body, a sealing pad extending from a portion of the elongated body, a container holding a selective permeability agent (SPA), and a device. The sealing pad can have an opening for establishing fluidic communication between an earth formation and the elongated body, an outer surface to hydraulically seal a region along an inner surface of a wellbore and a recess within the sealing pad establishing a fluid flow channel along the inner surface of the wellbore. The device can inject the SPA through an outlet of the body into the earth formation, and extract a formation fluid through the opening, wherein the formation fluid being collected is from the region along the inner surface of the wellbore sealed off by the sealing pad.
Method and system for extracting reservoir fluid sample
A fluid extraction tool can include a body, a sealing pad extending from a portion of the elongated body, a container holding a selective permeability agent (SPA), and a device. The sealing pad can have an opening for establishing fluidic communication between an earth formation and the elongated body, an outer surface to hydraulically seal a region along an inner surface of a wellbore and a recess within the sealing pad establishing a fluid flow channel along the inner surface of the wellbore. The device can inject the SPA through an outlet of the body into the earth formation, and extract a formation fluid through the opening, wherein the formation fluid being collected is from the region along the inner surface of the wellbore sealed off by the sealing pad.
Thermally responsive lost circulation materials
Methods and compositions for the use of thermally responsive lost circulation materials in subterranean formations are provided. In one embodiment, the methods include introducing a treatment fluid including a base fluid and a thermally responsive lost circulation material including a thermally responsive hydrogel that includes at least one thermoresponsive polymer into a wellbore penetrating at least a portion of a subterranean formation including a loss zone; allowing the thermally responsive lost circulation material to reach a thickening transition temperature; and allowing the treatment fluid to at least partially set in the subterranean formation.
Rigless method for selective zonal isolation in subterranean formations using colloidal silica
A method for zonal isolation in a subterranean formation includes identifying a zone of interest within the subterranean formation, determining a static temperature of the zone of interest, determining a time duration for gelation of a treatment fluid, determining a concentration of an accelerator in the treatment fluid, determining a volume of the treatment fluid to be delivered to the zone of interest, determining a correlation between cooling of a wellbore near the zone of interest and a delivery rate of the treatment fluid, determining a target wellbore temperature, delivering a cooling stage until the target wellbore temperature is reached, and delivering a treatment stage. Delivering the cooling stage and the treatment stage results in forming, within the zone of interest, a gel that is impermeable to fluid flow.
METHOD FOR PREVENTING STRATAL WATER FROM BREAKING THROUGH INTO BOTTOM HOLES OF WELLS
The present disclosure relates to the gas production industry. A shielding formation member, for which use is made of an emulsion-suspension system with colloidal nano-particles of silicon dioxide is injected into the bottom region of a formation, the system comprising (% by vol.): 5-12 of diesel fuel or processed oil from an oil processing and pumping station, 2-3 of emulsifier, and 1.0-1.5 of colloidal nano-particles of silicon dioxide, with the remainder being an aqueous solution of calcium chloride or potassium chloride. The emulsifier used is a composition comprising (% by vol.): 40-42 of esters of higher unsaturated fatty acids and resin acids, 0.7-1 of amine-N-oxide, 0.5-1 of high-molecular-weight organic heat stabilizer, with the remainder being diesel FUEL.
METHOD FOR PREVENTING STRATAL WATER FROM BREAKING THROUGH INTO BOTTOM HOLES OF WELLS
The present disclosure relates to the gas production industry. A shielding formation member, for which use is made of an emulsion-suspension system with colloidal nano-particles of silicon dioxide is injected into the bottom region of a formation, the system comprising (% by vol.): 5-12 of diesel fuel or processed oil from an oil processing and pumping station, 2-3 of emulsifier, and 1.0-1.5 of colloidal nano-particles of silicon dioxide, with the remainder being an aqueous solution of calcium chloride or potassium chloride. The emulsifier used is a composition comprising (% by vol.): 40-42 of esters of higher unsaturated fatty acids and resin acids, 0.7-1 of amine-N-oxide, 0.5-1 of high-molecular-weight organic heat stabilizer, with the remainder being diesel FUEL.
METHOD FOR LEVELING THE INJECTIVITY PROFILE OF AN INJECTION WELL
The disclosure relates to the oil and gas production industry, and more particularly to technologies for redistributing filter flows in the bottom-hole formation zone of an injection well. A method involves pumping into the bottom-hole formation zone a blocking agent in the form of an emulsion system containing nanoparticles of silicon dioxide and being comprised of: 5-12 vol % diesel fuel or processed oil from an oil processing and pumping station, 2-3 vol % emulsifier, 0.25-1.0 vol % colloidal nanoparticles of silicon dioxide, with the remainder being an aqueous solution of calcium chloride or potassium chloride. The emulsifier is in the form of a composition comprising: 40-42 vol % esters of higher unsaturated fatty acids and resin acids, 0.7-1 vol % amine-N-oxide, 0.5-1 vol % high-molecular-weight organic thermostabilizer, with the remainder being diesel fuel.
METHOD FOR LEVELING THE INJECTIVITY PROFILE OF AN INJECTION WELL
The disclosure relates to the oil and gas production industry, and more particularly to technologies for redistributing filter flows in the bottom-hole formation zone of an injection well. A method involves pumping into the bottom-hole formation zone a blocking agent in the form of an emulsion system containing nanoparticles of silicon dioxide and being comprised of: 5-12 vol % diesel fuel or processed oil from an oil processing and pumping station, 2-3 vol % emulsifier, 0.25-1.0 vol % colloidal nanoparticles of silicon dioxide, with the remainder being an aqueous solution of calcium chloride or potassium chloride. The emulsifier is in the form of a composition comprising: 40-42 vol % esters of higher unsaturated fatty acids and resin acids, 0.7-1 vol % amine-N-oxide, 0.5-1 vol % high-molecular-weight organic thermostabilizer, with the remainder being diesel fuel.
MIXTURE FOR PRE-CEMENTING OPERATION IN WELLBORE
A treatment fluid for performing one or more pre-cementing operations in a wellbore can include a base fluid, a viscosifier, and a crushed glass material. The viscosifier can be dispersed in the base fluid. The crushed glass material can be dispersed in the base fluid for performing one or more cementing operations with respect to the wellbore.