Abstract: A process for balancing a rim and tire, which comprises first balancing the rim, then mounting the tire, properly inflating it and balancing a second time to determine the location and weight of balancing required. The tire and rim are then indexed with marks to indicate where the balancing weights should be placed. These indexing marks will be used at the remounting stage to assure proper balancing. The tire is then deflated and removed from the rim and the correct mass rubberized weights are vulcanized to the internal surface of the tire sidewall at the indexing mark and on the opposite sidewall across from the indexing mark. The tire is then installed back on the rim with the indexing marks lined up next to each other. The tire is re-inflated and the balance re-checked with a spin balancing machine.

Abstract: The present invention discloses a method of plugging a well that relies on casing expansion to plug uncemented casing sections, rather than milling out the casing or perforate wash and cement (PWC).

Abstract: A process for plugging a wellbore, e.g., an oil or gas well, which comprises installing a backpressure ball device into the wellbore to increase the back pressure for better control when introducing cement or other liquid plugging medium to plug the wellbore. The device has a spherical shape with through bores and/or external channels in a geometric pattern. The external diameter of the sphere provides a shoulder of given diameter which, when the device is installed in a wellbore, comes to rest against a smaller diameter shoulder within the wellbore. The device may free fall for all or part of the way down the wellbore but is typically pumped down at least for the last part of its delivery to confirm by an increase in pump pressure that it has landed. Cement and other liquid may then be pumped through the backpressure ball device to the distal region of the well. The backpressure ball device may also be applicable for use in the operation of an oilfield by providing backpressure to actuate drive rods.

Abstract: A process for plugging a wellbore, e.g. an oil or gas well, comprises installing a choke device (1) into the wellbore in order to increase the back pressure to allow better control when introducing cement to plug the wellbore. The device (1) has a cylindrical shape with a central through bore (6). On the external profile is a shoulder (4) which, when the device is installed in a wellbore, comes to rest against a nipple in the wellbore. The device (1) may free fall for all or part of the way down but would normally be pumped down at least for the last part of its delivery. In the bore (6) is a pump out ball (10) which blocks the through bore until the device reaches the nipple and stops, at which point pressure increases and the ball is ejected. Cement and other liquid may then be pumped through the choke device to the distal region of the well.

Abstract: A process for plugging a wellbore, e.g., an oil or gas well, which comprises installing swelling elastomer sealing units across an interval of casing which is properly in the annulus space between the outside of the casing and the rock face. The swellable elastomer sealing units can also be used to seal off perforated casing, production screen and open hole completions. The plug and abandonment system is comprised of swelling elastomer units that are connected together to achieve a desired sealing contact length. These connected units may be hung off below or placed above a packer, cement retainer, cast iron bridge plug or setting slips. Both the tubular form of the plugging unit and the rod form of the plugging unit can be used in conjunction with conventional settable medium (cementing, barite or sized aggregate) plug setting operations. The elastomers incorporated are designed to swell with the current wellbore fluid and/or any possible future wellbore fluid.

Abstract: A process for plugging a wellbore, e.g., an oil or gas well, which comprises installing swelling elastomer sealing units across an interval of casing which is properly in the annulus space between the outside of the casing and the rock face. The swellable elastomer sealing units can also be used to seal off perforated casing, production screen and open hole completions. The plug and abandonment system is comprised of swelling elastomer units that are connected together to achieve a desired sealing contact length. These connected units may be hung off below or placed above a packer, cement retainer, cast iron bridge plug or setting slips. Both the tubular form of the plugging unit and the rod form of the plugging unit can be used in conjunction with conventional settable medium (cementing, barite or sized aggregate) plug setting operations. The elastomers incorporated are designed to swell with the current wellbore fluid and/or any possible future wellbore fluid.

Abstract: The present invention discloses a method of plugging a well that relies on casing expansion to plug uncemented casing sections, rather than milling out the casing or perforate wash and cement (PWC).

Abstract: A process for plugging a wellbore, e.g., an oil or gas well, which comprises installing a backpressure ball device into the wellbore to increase the back pressure for better control when introducing cement or other liquid plugging medium to plug the wellbore. The device has a spherical shape with through bores and/or external channels in a geometric pattern. The external diameter of the sphere provides a shoulder of given diameter which, when the device is installed in a wellbore, comes to rest against a smaller diameter shoulder within the wellbore. The device may free fall for all or part of the way down the wellbore but is typically pumped down at least for the last part of its delivery to confirm by an increase in pump pressure that it has landed. Cement and other liquid may then be pumped through the backpressure ball device to the distal region of the well. The backpressure ball device may also be applicable for use in the operation of an oilfield by providing backpressure to actuate drive rods.

Abstract: A process for plugging a wellbore, e.g. an oil or gas well, comprises installing a choke device (1) into the wellbore in order to increase the back pressure to allow better control when introducing cement to plug the wellbore. The device (1) has a cylindrical shape with a central through bore (6). On the external profile is a shoulder (4) which, when the device is installed in a wellbore, comes to rest against a nipple in the wellbore. The device (1) may free fall for all or part of the way down but would normally be pumped down at least for the last part of its delivery. In the bore (6) is a pump out ball (10) which blocks the through bore until the device reaches the nipple and stops, at which point pressure increases and the ball is ejected. Cement and other liquid may then be pumped through the choke device to the distal region of the well.

Abstract: A process for plugging a wellbore, e.g., an oil or gas well, which comprises installing swelling elastomer sealing units across an interval of casing which is properly in the annulus space between the outside of the casing and the rock face. The swellable elastomer sealing units can also be used to seal off perforated casing, production screen and open hole completions. The plug and abandonment system is comprised of swelling elastomer units that are connected together to achieve a desired sealing contact length. These connected units may be hung off below or placed above a packer, cement retainer, cast iron bridge plug or setting slips. Both the tubular form of the plugging unit and the rod form of the plugging unit can be used in conjunction with conventional settable medium (cementing, barite or sized aggregate) plug setting operations. The elastomers incorporated are designed to swell with the current wellbore fluid and/or any possible future wellbore fluid.

Abstract: A process for plugging a wellbore comprises installing a choke device (1) into the wellbore to increase the back pressure allowing better control when introducing cement to plug the wellbore. The device (1) has a cylindrical shape with a central through bore (6). On the external profile is a shoulder (4) which, when the device is installed in a wellbore, comes to rest against a nipple in the wellbore. The device (1) may free fall for all or part of the way down but would normally be pumped down at least for the last part of its delivery. In the bore (6) is a pump out ball (10) which blocks the through bore until the device reaches the nipple and stops, at which point pressure increases and the ball is ejected. Cement and other liquid may then be pumped through the choke device to the distal region of the well.