Abstract: An expandable polymer grout system provides sand control at a target location within a well. One deployment system mixes the expandable polymer grout system within the wellbore and places the grout at a failure point in a sand screen to form a polymer seal. Another deployment system mixes the expandable polymer grout system at the well's surface and transports the grout to a failure point in a sand screen to form a polymer seal. Yet another deployment system utilizes a canister system to mix the expandable polymer grout system within the wellbore and place the grout at a potential failure point in a sand screen to form a polymer seal.

Abstract: An expandable polymer grout system provides sand control at a target location within a well. One deployment system mixes the expandable polymer grout system within the wellbore and places the grout at a failure point in a sand screen to form a polymer seal. Another deployment system mixes the expandable polymer grout system at the well's surface and transports the grout to a failure point in a sand screen to form a polymer seal. Yet another deployment system utilizes a canister system to mix the expandable polymer grout system within the wellbore and place the grout at a potential failure point in a sand screen to form a polymer seal.

Abstract: An expandable polymer grout system comprises an isocyanate component and an organic polyol component that when combined form a grout for bonding to equipment used in a wellbore. In a first instance, the grout is used with a retrieval system to bond to an obstruction in a wellbore for retrieving the obstruction from the wellbore. In a second instance, the grout is used with a deployment system to secure a sensor to downhole equipment within a wellbore. In a third instance, the grout is used to secure a casing centralizer to an outer surface of a casing before the casing is placed in a wellbore. In a fourth instance, the grout is molded to form a casing centralizer on an outer surface of a casing before the casing is placed in a wellbore.

Abstract: A removable gas sensor module is provided for a therapeutic gas delivery device. The gas sensor module includes a sample chamber which receives a sample gas from the therapeutic gas delivery device. A gas detection unit includes a plurality of sensors operable to measure at least one property of the sample gas. The sensors include two or more of a gas detection sensor, a humidity sensor, a temperature sensor, or a combination thereof. The gas sensor module is self-contained within the therapeutic gas delivery device and swappable with another gas sensor module.

Abstract: An open hole formation surface within a wellbore of a well system is sealed with a polymer seal. A deployment system is inserted into the wellbore to the location of the open hole formation surface. The open hole formation surface may be located at the bottom of the wellbore or at an interval between two casing strings. The deployment system delivers an expandable polymer grout system to the location of the open hole formation surface. The expandable polymer grout system cures to form the polymer seal on the open hole formation surface.

Abstract: An open hole formation surface within a wellbore of a well system is sealed with a polymer seal. A deployment system is inserted into the wellbore to the location of the open hole formation surface. The open hole formation surface may be located at the bottom of the wellbore or at an interval between two casing strings. The deployment system delivers an expandable polymer grout system to the location of the open hole formation surface. The expandable polymer grout system cures to form the polymer seal on the open hole formation surface.

Abstract: A removable gas sensor module is provided for a therapeutic gas delivery device. The gas sensor module includes a sample chamber which receives a sample gas from the therapeutic gas delivery device. A gas detection unit includes a plurality of sensors operable to measure at least one property of the sample gas. The sensors include two or more of a gas detection sensor, a humidity sensor, a temperature sensor, or a combination thereof. The gas sensor module is self-contained within the therapeutic gas delivery device and swappable with another gas sensor module.

Abstract: Systems and methods for employing hardened mixtures into perforations during hydraulic fracturing.

Abstract: Systems for deploying expandable grout in a downhole assembly to prevent lost circulation are described. Methods are described that prevent lost circulation in hydraulic fracturing by filling fractures with an expanding grout mixture.

Abstract: A removable gas sensor module is provided for a therapeutic gas delivery device. The gas sensor module includes a sample chamber which receives a sample gas from the therapeutic gas delivery device. A gas detection unit includes a plurality of sensors operable to measure at least one property of the sample gas. The sensors include two or more of a gas detection sensor, a humidity sensor, a temperature sensor, or a combination thereof. The gas sensor module is self-contained within the therapeutic gas delivery device and swappable with another gas sensor module.

Abstract: A method of surveying a wellbore continuously during drilling. The method includes using a drill string with a non-rotating sub-assembly. The non-rotating sub-assembly comprises three accelerometers oriented orthogonally to each other and three directional sensors also oriented orthogonally to each other. Sample measurements from the six sensors are used to calculate the attitude of the wellbore and more specifically used to create an accurate survey of wellbores within a subterranean formation while the drill string is drilling.

Abstract: A method of surveying a wellbore continuously during drilling. The method includes using a drill string with a non-rotating sub-assembly. The non-rotating sub-assembly comprises three accelerometers oriented orthogonally to each other and three directional sensors also oriented orthogonally to each other. Sample measurements from the six sensors are used to calculate the attitude of the wellbore and more specifically used to create an accurate survey of wellbores within a subterranean formation while the drill string is drilling.

Abstract: A method and apparatus for measuring Polarization Mode Dispersion (PMD) of a single mode optic fiber by providing a PMD measuring instrument with a light source. Light is transmitted serially through the optic fiber being tested and an artefact with a known, stable PMD value. The artefact biases the total PMD measured by the instrument away from zero. The PMD of the optic fiber may then be determined by data reduction of the total measured PMD. The method may also be used to calibrate a PMD instrument.