Particle Drilling Technologies, Inc.  



Hardened steel particles
(50-55 Rc) entrained with drilling mud at ~2% by volume strike the formation approximately 4.8 million times per minute.


Particle Drilling Technologies to Present at the
Tejas Securities Group Investment Conference

HOUSTON, Sept. 12 /PRNewswire-FirstCall/ -- Particle Drilling Technologies, Inc. (Nasdaq: PDRT) today announced that the Company will be presenting at the Tejas Securities Group, Inc. Investment Conference to be held at the Rainbow Room at 30 Rockefeller Plaza in New York City on September 13, 2005.

J. Chris Boswell, Particle Drilling's Chief Financial Officer will present the Company on Tuesday, September 13, 2005 at 2:45pm Eastern Daylight Time. A copy of the presentation will be available on the Company's website at / immediately prior to the presentation.

Particle Drilling Technologies, Inc., headquartered in Houston, Texas, is a development stage oilfield service and technology company owning certain patents and pending patents related to the Particle Impact Drilling technology. The Company's technology is designed to enhance the rate-of-penetration function in the drilling process, particularly in hard rock drilling environments.

Certain statements in this press release that are not historical but are forward-looking are subject to known and unknown risks and uncertainties, which may cause PDTI's actual results in future periods to be materially different from any future performance that may be suggested in this press release. Such risks and uncertainties may include, but are not limited to, PDTI's ability to raise equity capital, if necessary, and its ability to obtain equity financing on acceptable terms, if at all, a severe worldwide slowdown in the energy services sector and working capital constraints. Further, PDTI is a development stage company that operates in an industry sector where securities values are highly volatile and may be influenced by economic and other factors beyond PDTI's control such as announcements by competitors and service providers.

Contacts:
J. Chris Boswell, SVP & CFO
Particle Drilling Technologies, Inc.
713-223-3031 ext. 204

Ken Dennard, Managing Partner
Jack Lascar, Partner
DRG&E / 713-529-6600