American Oil and Gas Reporter - April 2016 - 87

According to Gallifet, the Everest
series includes three models: Everest
Summit, which offers the most advanced
features; Everest Base, an economical
option for less abrasive wells; and Everest
Open, the ideal choice for open-bearing,
surface or intermediate applications.
Everest Summit features EdgeGuard®,
a shirttail protection system in which tungsten carbide microshields are placed on
critical areas. "These custom-fitted microshields have higher carbide content than
welded hard-facing, so they offer enhanced
wear characteristics," says Matt Stroever,
a Varel roller cone design engineer.
As proof, he offers a head-to-head
drilling test in Virginia. The bit without
EdgeGuard experienced two out of three
bearing failures caused by cuttings packing
into the seal gland, while the EdgeGuard
bit experienced significantly less bearing
wear over an additional 283 feet of drilling.
Gallifet says Everest's grease system
has been improved as well. "The new
canister compensator is designed to extend
bit life and maintain grease supply over
the bit's application life," he details. "It
has at least twice the grease capacity of
previous models to provide critical and
reliable lubrication."
The system was designed to achieve a
consistent grease release pressure at
various temperatures and downhole pressures, Gallifet mentions. "Extensive field
tests in a variety of sizes and applications
demonstrate the canister compensator improves bearing reliability by 33 percent,"
he reports.
Stroever adds that all Everest models
use a new grease formula. "In lab and
field tests, this formula has extended
bearing life by reducing internal bearing
heat generation," he says. "Additionally,
the grease is stable at temperatures above
350 degrees Fahrenheit and at higher energy levels, so the bits can run in deeper,
hotter wells.
"To protect the seal, the bits feature a
pressure attenuator," Stroever continues.
"Naturally occurring cone pumps encountered while drilling lead to pressure spikes
in the grease system, accelerating seal
wear and grease loss. This patented technology has been proven to mitigate these
pressure spikes by restricting access to
the seal and allowing ample reaction time
for the reservoir system to compensate."
Gallifet says considerable research
went into developing the Everest bits'
shirttail protection, lubrication system,
and pressure attenuator. "We have done
everything we can to make sure the bits
will reduce costs and improve performance
in large diameter holes," he assures. ❒

Industrial
Industrial R
Rubber
ubber
Circulating
Circulating Equipment
Equipment
Industrial Rubber, Inc.'s Swages are light and easy to handle, yet
robust enough to withstand high pressure circulation. The 1502 union
sub is easy to replace should the need arise. Swages are available in
any size or style of casing thread - just let us kknnow what you need!
Features of the IRI Swage Includee:
* Dished top design reduces
weight by up to 33%
* 1502 union easy to maintain
or replace
* ACME threaded connections
- no pipe threads
* One-piece design allows for
high-pressure use
* Available for any size casing,
with any style threads

Indu
ustrial Rubber, Inc.'s Circulating Heads
complement the Industrial Rubber line of Cementing Heads. IRI
Circulating Heads and Cementing Heads utilize a common Quick
Connect sub that allows quick change out from Circulating Head to
Cementing Head. This makes for a convenient circulating tool when
used either in conjunction with an IRI Cementing Head or as a
standalone unit.
Features of the IRI
Circulating Head Include:
* Quick Coupling Union allows fast,
easy connection to Casing String
* Plugs can be dropped through the
Circulating Head assembly by simple
removal of the Circulating Head Cap.
* Available for any size casing, with any
styyle thhrreads

EVERYTHING FOR OILWELL CEMENTING

P
Plugs,
lugs, casing
casing ccentralizers,
entralizers, baskets,
baskets, ffl
float
loat equipment,
equipment, sstage
tage ccementing
ementing tools,
tools,

EVERYTHING
E
VERYTHING B
BUT
UT T
THE
HE CEMENT!
CEME
EN
NT!

CA
AL
LL TOLL-FREE 800-457-4851 FOR PRICE AND DELIV
VE
ERY
* P.O. Box 890068
Oklahoma City, OK 73189
* Phone: 800-457-4851
* Fax: 405-703-7049
*w
ww
ww
w
w.iri-oiltool.com
We accept VISA & MasterCard

P
PRIVATELY
RIVATELY OWNED
OWNED - E
ESTABLISHED
STABLISHED IIN
N 1965
1965
APRIL 2016 87
American Oil and Gas Reporter - April 2016

Table of Contents for the Digital Edition of American Oil and Gas Reporter - April 2016
