Methods of well stimulation and completion

a well stimulation and well technology, applied in the field of improved methods for well stimulation and completion, can solve the problems of inability to achieve the desired flowback of proppant or formation fines with formation fluid, complex and potentially unstable fracture geometries, and damage to valves, instruments, and other production equipmen

Inactive Publication Date: 2005-07-07
HALLIBURTON ENERGY SERVICES INC
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Benefits of technology

[0001] The present invention relates to improved methods for well stimulation and completion. More particularly, the present inven

Problems solved by technology

Flowback of the proppant or formation fines with formation fluids is undesirable as it may erode metal equipment, plug piping and vessels, and cause damage to valves, instruments, and other production equipment.
While the hydraulic fracturing techniques discussed above are commonly used on vertical well

Method used

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  • Methods of well stimulation and completion
  • Methods of well stimulation and completion

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Embodiment Construction

[0014] The present invention relates to improved methods for well stimulation and completion. More particularly, the present invention relates to methods of stimulating and completing well bores while controlling formation sand migration and proppant flowback.

[0015] Some embodiments of the present invention provide methods of stimulating hydrocarbon production and controlling particulate migration comprising the steps of (1) hydraulically fracturing a formation, (2) placing proppant coated with a tackifying agent into the far-well bore area of the fracture and then (3) placing an agent capable of controlling particulate flowback into the near-well bore area. The agent capable of controlling particulate flowback may be either proppant coated with curable resin or screen sized to control the flowback of the proppant coated with a tackifying agent in the well bore. Placing proppant coated with tackifying agent into the far-well bore area acts, inter alia, to help control the migration...

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Abstract

The present invention relates to improved methods for well stimulation and completion. More particularly, the present invention relates to methods of stimulating and completing well bores while controlling formation sand migration and proppant flowback. One embodiment of the present invention provides a method of stimulating a formation surrounding a well bore comprising the steps of: (a) hydraulically fracturing a formation to create or enhance at least one fracture; (b) placing proppant coated with a tackifying agent into the far-well bore area of the fracture; and, (c) placing an agent capable of controlling particulate flowback into the well bore or near-well bore area of the fracture.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to improved methods for well stimulation and completion. More particularly, the present invention relates to methods of stimulating and completing well bores while controlling formation sand migration and proppant flowback. [0002] A subterranean formation may be treated to increase its permeability by hydraulically fracturing the formation to create or enhance one or more cracks or “fractures.” Such hydraulic fracturing is usually accomplished by injecting a viscous fracturing fluid into the subterranean formation at a rate and pressure sufficient to cause the formation to break down and produce one or more fractures or enhance one or more natural fractures. The fracture or fractures may be horizontal or vertical, with the latter usually predominating, and with the tendency toward vertical fractures increasing with the depth of the formation being fractured. The fracturing fluid is generally a highly viscous gel, emuls...

Claims

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Application Information

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IPC IPC(8): C09K8/68C09K8/80E21B43/267
CPCC09K8/68C09K8/805C09K8/685
Inventor NGUYEN, PHILIP D.
Owner HALLIBURTON ENERGY SERVICES INC
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