Abstract: Systems and techniques are provided for determining an integrity of a seal between a formation tester and a formation during formation testing. An example method can include controlling placement of a probe of a formation tester from a wellbore and into a formation as part of a formation measurement operation performed by the formation tester in the formation; gathering first pressure measurements through a probe during a probe setting phase of the formation measurement operation; gathering second pressure measurements through the probe during a phase of the formation measurement operation after the probe setting phase; and determining an integrity of a seal between a packer of the formation tester and the formation based on a comparison of the first pressure measurements gathered during the probe setting phase and the second pressure measurements gathered during the phase of the formation measurement operation after the probe setting phase.

Abstract: The invention relates to a method for determining the state of a joint joining a first and a second drill string component. A drill rig includes a rotation unit for rotating the drill string and means for determining a representation of a torque applied by the rotation unit. A joint loosening mechanism distinct from the rotation unit apply a joint loosening torque acting on the drill string when loosening a joint. The method includes applying a torque in a joint loosening direction by means of the rotation unit, and applying a joint loosening torque acting on the drill string by means of the joint loosening mechanism.

Abstract: A system and method for a composite cement retainer. A composite cement retainer has various components. When these various components comprise composite where feasible, or a drillable metal, the retainer can be easily placed and quickly drilled if necessary.

Abstract: A suction-extraction adapter for a drilling tool has a housing and a tool connection unit. The housing has a suction-extraction device interface for the detachable connection of a suction-extraction device to the suction-extraction adapter. The tool connection unit enables the axial fixing of the suction-extraction adapter on the drilling tool. The housing also has a locking mechanism. The tool connection unit is configured to be locked on the housing of the suction-extraction adapter via the locking mechanism.

Abstract: Elongate capsules for housing waste are configured for disposal (placement) into wellbore(s) that are located in particular deep underground geologic formation(s). These capsules have opposing structures for physically linking multiple capsules together in an end-to-end fashion. These opposing end structures may include a stinger with pins at a top end of the capsule; and a J-slots structure at the bottom end of the capsule. The stinger with pins of a first capsule may be (removably) attached to the J-slots of a second capsule. Further, a retrieval-tool also has the J-slots structure at one end. The J-slots structure of the retrieval-tool may be configured to (removably) attach to a stinger with pins of a given capsule (which may be linked to other capsule(s)); and then the retrieval-tool may be used to retrieve the given capsule(s) from a given wellbore. Capsule retrieval systems and/or method may utilize such capsule(s) and the retrieval-tool.

Abstract: A gravel pack system includes a liner assembly and a deployment assembly. The liner assembly includes a sand control screen. The deployment assembly facilitates rotation of the liner assembly and circulation through the liner assembly while running the liner assembly into a wellbore using a work string. The deployment assembly includes a crossover tool that is operated to facilitate gravel packing without manipulation of the work string. The deployment assembly also includes a setting tool for setting a packer and/or a sand barrier at the top of the liner assembly.

Abstract: Wireline saver tool assemblies may be used for oil and gas operations. In some cases, the wireline saver tool assemblies may provide a mechanical catch for a wireline saver tool for minimizing and/or preventing the wireline tool from falling freely from a lubricator in the event of an operator and/or equipment failure. Operator input may not be required to catch and/or prevent falling of the wireline tool.

Abstract: A method for calibrating the sensors present within a drilling tool, whereby the calibration occurs downhole and in-situ within the drilling tool. The calibration method may use the rotation of the drilling tool which typically occurs during drilling operations, whereby the drilling tool is rotating along the axis which follows the drilling trajectory. Direction and speed of rotation of the drilling tool may contribute to the in-situ calibration of the sensors, which may include angular rate sensors, magnetometers, and accelerometers.

Abstract: Provided is a sealing/anchoring tool, a well system and a method for sealing/anchoring within a wellbore. The sealing/anchoring tool, in one aspect, includes a mandrel and a hydraulically deformable member positioned about the mandrel. The sealing/anchoring tool, in accordance with this aspect, further includes a sealing/anchoring element positioned about the hydraulically deformable member, the sealing/anchoring element including a circlet having an inside surface having an inside diameter (di), an outside surface having an outside diameter (do), a width (w), and a wall thickness (t), the circlet comprising an expandable metal configured to expand in response to hydrolysis to chemically deform the circlet from a radially reduced chemical state to a radially enlarged chemical state.

Abstract: In at least one embodiment, a compression plate to be used with a slip hanger or a packoff in oilfield equipment is disclosed. The compression plate includes one or more grooves or slots extending circumferentially with respect to an axis of the slip hanger or the packoff. The compression plate is to be associated with an annulus seal gland of the slip hanger or the packoff and is to enable a gland volume of the annulus seal gland to change with temperature applied to the slip hanger or the packoff.

Abstract: In some implementations, a clamshell packer for use in a wellbore proximate to a subsurface formation comprises an expandable non-elastomeric material and is configured to annularly envelop a non-compliant portion of a tubular in the wellbore, the non-compliant portion between one or more expandable screens.

Abstract: A selective anchor assembly for a downhole completion comprising an anchor sub and a seal assembly with at least one seal unit. The anchor sub comprises at least one button slip within a corresponding piston port that is fluidically coupled to an inner passage of the anchor. The selective anchor is configured to slidingly and sealingly engage a polish bore of a downhole completion. The selective anchor is configured to anchor to a shroud coupled to the polish bore in response to pressure applied to the inner passage of the anchor sub.

Abstract: An inflow control device, including a housing, a flow restrictor defined within the housing, an outflow area defined within the housing fluidly connected to the flow restrictor; and a disperser disposed within the outflow area. A method for reducing erosion in an inflow control device, including flowing a fluid through a flow restrictor, creating a jet of fluid leaving the flow restrictor, impinging the jet on a disperser in an outflow area for the flow restrictor, and dispersing the jetting fluid. A borehole system including a borehole in a subsurface formation, an inflow control device disposed within the borehole.

Abstract: A disconnect tool can include an electrical motor and a weak link. The electrical motor can be configured to part the weak link in response to electrical power applied to the electrical motor. A method of disconnecting sections of a tool string from each other in a well can include connecting a disconnect tool in the tool string, the disconnect tool including an electrical motor and a weak link, conveying the tool string into the well, and then applying electrical power to the electrical motor, thereby parting the weak link and disconnecting the tool string sections.

Abstract: A system for performing a mechanical operation on a wireline is described including: a motor; a gear train coupled to the motor, the gear train including a first and a second rotational output, the first and second rotational outputs having different rotational speeds relative to each other; a fluid pump coupled to both the first and second rotational outputs, the fluid pump including: a pump housing coupled to the first rotational output, and a pump input coupled to the second rotational output; and a milling bailer coupled to the housing of the fluid pump and configured to rotate with the fluid pump housing, the milling bailer including: a bailer portion shaped to intake fluid and allow the fluid to flow through a filter and the fluid pump; and a milling face including a bit and configured to perform a milling operation while fluid is flowing through the bailer portion.

Abstract: A technique facilitates application of increased force on a downhole tool, such as a shifting tool. According to an embodiment, a shifting tool is sized for deployment along the interior of a well string to enable shifting of a sliding sleeve. The shifting tool comprises a plurality of keys which are movably mounted for actuation between a contracted position and an extended position engaging the sliding sleeve. A plurality of pads may be actuated with the plurality of keys so as to form a flow restriction between the shifting tool and the surrounding well string. As a result, fluid pumped down between the shifting tool and the well string establishes a pressure differential across the flow restriction which helps move the shifting tool and the sliding sleeve to a desired position.

Abstract: Systems, methods, and apparatus for regulating pressure within a well tool. In some aspects, the well tool may include a cylinder, a setting chamber, and a first flow metering device and a second flow metering device installed in the cylinder. The first flow metering device having a first pressure threshold and the second flow metering device having a second pressure threshold may be configured to regulate an internal chamber pressure inside the setting chamber to reduce a collapse pressure or a pressure differential at the cylinder. The first flow metering device may be configured to allow an external pressure greater than a first pressure threshold to enter the setting chamber during a hydrocarbon recovery operation, and the second flow metering device may be configured to allow the internal chamber pressure greater than a second pressure threshold to exit the setting chamber after the hydrocarbon recovery operation.

Abstract: A casing pressure test tool assembly includes a well extending from a top end to a downhole end, the well having a receptacle; a wireline tool to run into the well; a casing test plug positioned downhole of the wireline tool, the casing test plug having a plug body extending from a first end to a second end; and a wireline setting tool adapter connecting the wireline setting tool and the casing test plug; the casing test plug releases from the wireline setting tool upon application of a separation force between the wireline setting tool adapter and the plug body; the casing test plug seals within the receptacle of the well; and the casing test plug, once sealed within the receptacle, allows for casing pressure testing operations of the well.

Abstract: An apparatus, which is for connecting a first tubular and a second tubular in a downhole environment, includes a first component having a first component uphole end and a first component downhole end. The first component uphole end includes an uphole connection configured to connect to the first tubular. The apparatus includes a second component having a second component uphole end and a second component downhole end. The second component uphole end includes an extending portion and the second component downhole end includes a downhole connection configured to connect to the second tubular. The apparatus includes a weak point connection releasably connecting the first component downhole end to the second component uphole end. The weak point connection is releasable by applying uphole force on the first tubular, and the extending portion of the second component is exposed uphole by release of the weak point connection.

Abstract: A lubricator for a well system comprises at least one piston and at least one piston plug. The at least one piston is axially slidable within the lubricator along a lubricator axis. The at least one piston comprises a piston alignment contour of a surface of the at least one piston. The at least one piston plug is configured to limit an extent of axial displacement of the at least one piston, and comprises a piston plug alignment contour of a surface of the piston plug. The piston alignment contour and the piston plug alignment contour are configured to mate and automatically circumferentially align the at least one piston and the at least one piston plug about the axis upon travel of the at least one piston along the axis toward the at least one piston plug.