摘要:
Of the many methods provided herein. one method comprises: providing at least a portion of a subterranean formation that comprises a shale; providing a plasticity modification fluid that comprises an aqueous fluid and an alkaline embrittlement modification agent; placing a pack completion assembly neighboring the portion of the subterranean formation; and embrittling at least a portion of the shale to form an embrittled shale portion.
摘要:
Of the methods provided herein, is a method comprising: providing a clean-up fluid comprising a peroxide-generating compound and an aqueous base fluid; placing the clean-up fluid in a subterranean formation; removing contaminants from at least a portion of the subterranean formation to form a cleaned portion of the formation; providing a consolidation agent; placing the consolidation agent on at least a portion of the cleaned portion of the formation; and allowing the consolidation agent to adhere to at least a plurality of unconsolidated particulates in the cleaned portion of the formation.
摘要:
Of the methods provided herein, is a method comprising: providing a clean-up fluid comprising a peroxide-generating compound and an aqueous base fluid; placing the clean-up fluid in a subterranean formation; removing contaminants from at least a portion of the subterranean formation to form a cleaned portion of the formation; providing a consolidation agent; placing the consolidation agent on at least a portion of the cleaned portion of the formation; and allowing the consolidation agent to adhere to at least a plurality of unconsolidated particulates in the cleaned portion of the formation.
摘要:
A sand control screen assembly (40) is operably positionable within a wellbore (50). The sand control screen assembly (40) includes a base pipe (42) having a plurality of openings (46) in a sidewall portion thereof and an internal flow path (44). A plurality of radially extendable filter members (52) are each operably associated with at least one of the openings (46) of the base pipe (42). The radially extendable filter members (52) have a circumferential dimension that is less than a longitudinal dimension thereof. The radially extendable filter members (52) have a radially retracted running configuration and a radially extended operating configuration, in which, the radially extendable filter members (52) preferably contact the wellbore (50).
摘要:
A method of injecting a treatment fluid into a portion of a subterranean formation, comprising providing a treatment fluid having a viscosity; determining the breakdown pressure of the portion of the subterranean formation; calculating the maximum sustainable flow rate for the treatment fluid; and, injecting the treatment fluid into the portion of the subterranean formation at a flow rate less than or equal to the maximum sustainable flow rate for the treatment fluid. A method of injecting a treatment fluid into a portion of a subterranean formation, comprising providing a treatment fluid having a viscosity; determining the breakdown pressure of the portion of the subterranean formation; calculating the maximum allowable treatment fluid viscosity; adjusting the viscosity of the treatment fluid to a viscosity less than or equal to the maximum allowable treatment fluid viscosity; and injecting the treatment fluid into the subterranean formation at the selected treatment fluid flow rate.
摘要:
A process to determine optimal completion type and design prior to drilling of a hydrocarbon producing well utilizing information from hydrocarbon recovery modeling such as reservoir, geo-mechanical, and material modeling over the production life of the well. An embodiment of the process includes obtaining information regarding pore pressure depletion, stress magnitudes and orientations, and strength of rock formation from hydrocarbon recovery modeling to determine optimum well completion design including the selection of a completion type, trajectory, and location. Additionally, the process may also consider probable failure mechanisms and identified completion requirements, and their corresponding effect on completion options.
摘要:
The present invention relates to methods for controlling the migration of unconsolidated particulates in a portion of a subterranean formation, and more particularly, to the using a pressure pulse to enhance the effectiveness of placement of a consolidation fluid in a portion of a subterranean formation. Some methods of the present invention provide methods of treating a subterranean formation comprising injecting a consolidation fluid into the subterranean formation while periodically applying a pressure pulse having a given amplitude and frequency to the consolidation fluid.
摘要:
Screen assemblies (40, 42) and a single trip method for selectively fracturing multiple formations (14, 16) traversed by a wellbore (32) are disclosed. Each formation (14, 16) has a screen assembly (40, 42) having a plurality of valves (60, 66) positioned adjacent thereto. During the treatment process, the formations (14, 16) are selectively treated with a treatment fluid that is pumped into the interior of the adjacent screen assembly (40, 42). The valves (60, 66) of the respective screen assemblies (40, 42) progressively allow the treatment fluid to exit from the interior to the exterior of the screen assemblies (40, 42) such that each formation (14, 16) is progressively fractured.
摘要:
Methods of forming permeable sand screens in long, open hole well bores within fluid producing zones are provided. The methods basically comprise the steps of placing a perforated pipe in the open hole well bore, providing a hardenable composition which after being placed in a desired location cures into a hard mass, placing the hardenable composition in the well bore adjacent to the fluid producing zone within the interior of the perforated pipe therein, between the perforated pipe and the walls of the open hole well bore and within voids or fractures in the producing zone, causing the hardenable composition to cure into a hard permeable mass and drilling the hard permeable mass out of the interior of the perforated pipe.
摘要:
Improved methods and apparatus for completing an unconsolidated subterranean zone penetrated by a well bore are provided. The methods basically comprise the steps of placing a slotted liner having an internal sand screen disposed therein in the zone, isolating the slotted liner and the well bore in the zone and injecting particulate material into the annuli between the sand screen and the slotted liner and the slotted liner and the well bore to thereby form packs of particulate material therein to prevent the migration of fines and sand with produced fluids.