Grifco's patented products are known and used throughout the world. In addition to our patented tools, Grifco designs and manufactures over 350 products for the Oil and Gas industry with a clientele boasting the biggest names in the business, including Halliburton, Exxon, and Schlumberger.
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2N1 / K-Booster
Trademarks
Twelve years ago, Grifco developed and patented a 2N1 (two directions in one tool) jarring system still employed and sold throughout the world. This 2N1 system was the first in the industry to allow the operator to jar in both directions as may be required Grifco's patented 2N1 Jar with K- Booster (accelerator) system delivers strong, constant, mechanical impacts to downhole fish in both (UP and DOWN) directions... More Info.
Back Pressure Flapper Valve
United States Patent 5,201,371
In an oil field tubular assembly, a flapper valve permitting downward flow and blocking upward flow is closed by down-hole pressure. A pivotally mounted flapper is urged to the closed position by a spring force, which may be moderated approaching the open position to reduce flow resistance, and an offset valve inlet passage provides clearance for flapper opening... More Info.
Auto set bi-directional jar
United States Patent number 5,330,018
An automatic set bi-directional apparatus for jarring an object in a well bore is disclosed. The apparatus comprises a tubular member having a portion defining an upper and lower striking shoulder, said tubular member having one end connected to a work string capable of creating a longitudinal force. A mandrel is connected to the object and the mandrel is concentrically disposed within said tubular member. The apparatus further includes a plurality of elongated members and an upper and lower ring members which serve as latch means. The mandrel further comprises a first and second grooved portion which are used for releasing the tubular member in order to deliver either an upward or downward jarring impact upon a stationary anvil... More Info.
Double acting accelerator jar
United States Patent 5,139,086
A combined accelerator, for accumulating energy, and jar, for sudden release of accumulated energy, for delivering up or down jarring impacts to objects stuck downhole in a wellbore, includes upper and lower tubular members which are telescopically connected within an integral outer tubular housing. The upper tubular member is connected to a pipe or tubing string inserted into the wellbore and cooperates with the outer tubular housing through mechanical spring means so as to accumulate a selected amount of energy to be released as a jarring impact. The lower tubular member is connected to the stuck object and cooperates with the outer housing through spring biased, tapered latch bars, so as to provide a sudden energy releasing means. A threaded adjusting bushing is provided within the outer housing so as to allow selection of a desired amount of spring bias, imposed on the latch bars, thereby providing a convenient field means for controlling the amount of jarring impact imparted to the stuck object... More Info.
KO-VAC
KO-VAC has a history of providing first class service and equipment both onshore and offshore to the oil industry in support of environmental clean-ups as far away as India . The purchase awards Grifco International, Inc. the ability to manufacture all size units for sale worldwide while Grifco develops plans for several innovations and upgrades to the units. Every major oil company is a potential customer and business relationships with the KO-VAC units will be pursued. Grifco International, Inc. is already working on contracts in Mexico to place the equipment. All environmental services will be contacted and made aware of Grifco International, Inc. and KO-VAC Services and equipment... More Info.
