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Method and apparatus for generating seismic pulses to map subterranean fractures
US8939205B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8939205-B2 |
| Application number | US-201213758013-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 10, 2012 |
| Priority date | Apr 10, 2012 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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The methods described are for determining distribution, orientation and dimensions of networks of hydraulically-induced fractures within a subterranean formation containing fluids. Micro-seismic events are generated, after cessation of fracturing and establishment of fracture networks, by particles introduced into the fractures which are capable of explosive or chemical reaction. In one method, attachment site particles are positioned within the formation during fracturing and additional reactive particles are later introduced. The reactive particles attach to the attachment sites and, upon a triggering event, react to produce micro-seismic events. The waves generated by the micro-seismic events are used to provide mapping of the effective fracture space. Additionally, time-lapse mapping is provided with use of “species” of attachment sites and reactive particles.
First claim
Opening claim text (preview).
It is claimed: 1. A method for creating a plurality of micro-seismic events within fractures in a hydrocarbon bearing zone of a subterranean formation, the zone having a wellbore extending therethrough, the method comprising the steps of: injecting a plurality of attachment site particles into the fractures of the zone of the subterranean formation; selectively attaching first reactive particles to attachment site particles; injecting a plurality of first reactive particles in…
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- E21B49/00Primary
Fixed Constructions · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8939205B2 cover?
- The methods described are for determining distribution, orientation and dimensions of networks of hydraulically-induced fractures within a subterranean formation containing fluids. Micro-seismic events are generated, after cessation of fracturing and establishment of fracture networks, by particles introduced into the fractures which are capable of explosive or chemical reaction. In one method,…
- Who is the assignee on this patent?
- Ersoz Haluk Vefa, Halliburton Energy Serv Inc
- What technology area does this patent fall under?
- Primary CPC classification E21B49/00. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).