Other

Completion Tool Company

Ctc International Inc.

George O Suman, Jr

Edward T Wood

Robert T Brooks

A process for determining suitable parameters of temperature and/or pressure to use in a cementing operation in a wellbore to obtain a positive seal of cement in an annulus between a liner and a borehole wall after the cement has set up and where the process utilizes the parameters of differential temperature in a well bore, pressure on the cement to obtain a positive borehole wall stress (and positive seal) in a cementing operation.

Cementing systems for oil wells

In a completion of an oil well where the well bore traverses the earth formations, a multiple series of inflatable packer elements are employed with each packer element having a defined sequential dependency of inflation to inflate the lowermost packe first then to inflate the packers in a sequence from the lowermost packer upwardly.

Sequential inflatable packer

Disclosed is a method for reducing or preventing migration of a formation fluid from a first earthen formation to a second earthen formation each of which is intersected by a drilled borehole. The method includes running into the borehole, the packer includes a mandrel with an plastic sleeve there about and valve for permitting the flow from the interior of the mandrel into the interior of the sleeve to expand the sleeve against the formation. The method further includes the steps of determining each of the pressures of the formation, the radial shrinkage of the cement within the sleeve, and the maximum pressure which can be exerted by the sleeve on the formation without fracturing same. The method further includes the step of pamping cement down through the casing and mandrel and into the sleeve at a pressure less than the maximum pressure that can be exerted on the formation without fracturing same, but sufficient to resiliently strain the mandrel, sleeve, and formation in an amount sufficiently greater than the shrinkage of the cement during setting to provide a pressure of the sleeve against the form, after the cement has set, greater than the pore press of the formation.

Well completion method

Method for completion of wells

An inflatable packer is disclosed for use in oil and gas wells, the packer having means to prevent the inflatable member from becoming affixed to the borehole wall and tear or be accidentally set.

Growing community of inventors

Houston, TX, United States of America

George O Suman, Jr