摘要:
Methods comprising: providing at least a plurality of liquid hardenable resin coated particulates that have been at least partially coated with a liquid hardenable resin component; providing at least a plurality of liquid hardening agent coated particulates that have been at least partially coated with a liquid hardening agent component; suspending the liquid hardenable resin coated particulates and the liquid hardening agent coated particulates in a treatment fluid; and placing the treatment fluid into a subterranean formation. Methods comprising: providing at least a plurality of coated particulates that have been at least partially coated with one component of a two component resin system; coating at least a plurality of the coated particulates on a job site with a second component of a two component resin system; suspending the coated particulates in a treatment fluid; and placing the treatment fluid into a subterranean formation.
摘要:
A method of consolidating a proppant particulates comprising substantially coating proppant particulates with an integrated consolidation fluid comprising a hardening agent that itself comprises a piperazine, a derivative of piperazine, or a combination thereof; placing the coated proppant particulates into a portion of a subterranean formation; and, allowing the integrated consolidation fluid to substantially cure. A method of stabilizing a portion of a subterranean formation comprising applying a preflush solution to the subterranean formation; applying an integrated consolidation fluid to the subterranean formation, wherein the integrated consolidation fluid comprises a hardening agent component itself comprising a piperazine, a derivative of piperazine, or a combination thereof; and, allowing the integrated consolidation fluid to substantially cure. An integrated consolidation fluid capable of consolidating a subterranean formation comprising a hardenable resin component and a hardening agent component itself comprising a piperazine, a derivative of piperazine, or a combination thereof.
摘要:
The present invention relates to methods and compositions for removing resin coatings. More particularly, the present invention relates to methods and compositions for removing coatings comprising epoxy and/or furan. Some embodiments of the methods of the present invention comprise removing a resin coating from a surface comprising the step of applying to the surface a cleaning solution comprising: a pH-adjusting agent, a solvent, and water. Other embodiments of the present invention comprise cleaning solutions comprising a pH-adjusting agent, a solvent, and water wherein the cleaning solution is suitable for use in cleaning a resin from a surface.
摘要:
A method of propping at least one fracture in a subterranean formation, that comprises forming a plurality of proppant aggregates, each proppant aggregate comprising a binding fluid and a filler material, and introducing the plurality of proppant aggregates into the at least one fracture, is provided. Methods of fracturing a subterranean formation also are provided.
摘要:
The present invention relates to methods for controlling the migration of particulates, such as proppant and formation sands, from subterranean formations using solutions of tackifying materials. One embodiment of the present invention provides a method of treating a subterranean formation comprising the steps of placing a tackifying composition into the subterranean formation and then placing an after-flush fluid into the subterranean formation.
摘要:
Methods of controlling particulate migration in a portion of a subterranean formation comprising placing a pre-flush fluid into the portion of the subterranean formation; and then, placing a low-viscosity adhesive substance diluted with an aqueous dissolvable solvent into the portion of the subterranean formation; wherein the portion of a subterranean formation being treated has a regain permeability of at least about 70%. Methods of creating a stabilized region around a portion of a subterranean formation around a well bore having a screen or liner in place in that portion of the subterranean formation comprising placing a pre-flush fluid into the portion of the subterranean formation; and then, placing a low-viscosity adhesive substance diluted with an aqueous dissolvable solvent into that portion of the subterranean formation; wherein the portion of a subterranean formation being treated has regain permeability of at least about 70%.
摘要:
The current invention provides an improved permeable cement composition for formation of downhole sand screens. The improved composition includes an effective amount of a surfactant. Addition of the surfactant to the permeable cement composition yields at least a pumpable slurry with a minimal amount of water or brine solution.
摘要:
The present invention provides methods for creating reduced-density, coated particulates and methods for using such particulates in subterranean operations. More particularly, the present invention relates to methods and compositions for effecting the density of particulates by coating them on-the-fly with a density-reducing material. One embodiment of the present invention describes methods of making a reduced-density, coated particulate comprising the steps of coating a particulate material with a coating material to create a coated particulate; providing a density-reducing material; and, adhering the density-reducing material to the surface of the coated particulate on-the-fly to create reduced-density, coated particulates.
摘要:
Methods of consolidating subterranean zones and hardenable resin compositions are provided. A hardenable resin composition of the invention basically comprises a furan liquid resin mixture comprising a 2-furanmethanol homopolymer and furfuryl alcohol, an organosilane coupling agent and an acid catalyst.
摘要:
The present invention relates to methods of determining the source of a particular fluid or particulate, and to novel tracer matrixes that may be used in such methods. In one embodiment, the present invention provides a method of detecting particulate or fluid flow from a first location to a second location comprising the steps of: introducing a tracer matrix comprising a polymeric material and a photoactive material to the first location; and detecting the photoactive material at the second location. In another embodiment, the present invention provides a method of detecting flow from a first zone and a second zone in a multizonal well in a subterranean formation comprising the steps of: introducing a first photoactive tracer into the first zone; introducing a second photoactive tracer into the second zone; and detecting the first and the second photoactive tracers in the return flow from the first and second zones.