Abstract: A whipstock assembly includes a pivotable deflector movable from a retracted to a deployed position. In the deployed position, the deflector is capable of guiding a tubular member away from the whipstock.

Abstract: An apparatus and method for generating a drive force in a downhole environment includes chambers of a reactant and a catalyst, respectively, that are maintained separate until selectively exposed to one another. Once exposed, the reactant and catalyst produce expanding fluid pressure and sometimes heat. The products of the reaction are directed to a drive member to carry out a desired operation in the downhole environment.

Abstract: Expandable reamers for enlarging boreholes in subterranean formations include a tubular body and at least one member positioned in openings in the tubular body. The at least one member is configured to move between retracted and extended positions. A push sleeve is disposed at least partially within the tubular body and coupled to the at least one member. The push sleeve moves axially upward to move the at least one member to the extended position in response to a pressure of drilling fluid passing through a drilling fluid flow path in the tubular body. The push sleeve moves axially downward to move the at least one member to the retracted position in response to a pressure of drilling fluid upon a restrictive element disposed within the fluid passageway. The restrictive element disposed within the fluid passageway may be discarded from the fluid passageway by increasing the flow rate through the drilling fluid flow path.

Abstract: The present disclosure is directed to a cutting dart. The cutting dart comprises a dart body including a first pathway. The first pathway is configured to redirect cutting fluid flowing through a coiled tubing so that the cutting fluid flows radially to impinge against an inner surface of the coiled tubing. A seal is positioned around an outer circumference of the dart body. The present disclosure is also directed to an anchor dart. The anchor dart comprises a dart body and a swellable elastomer positioned around an outer circumference of the dart body. Methods of employing the cutting dart and anchor dart are also disclosed.

Abstract: A bit body is configured at its upper extent for connection into a drillstring. At least one fixed blade extends downwardly from the bit body, and has a radially outermost gage surface. A plurality of fixed cutting elements is secured to the fixed blade, preferably in a row at its rotationally leading edge. At least one bit leg is secured to the bit body and a rolling cutter is mounted for rotation on the bit leg. At least one stabilizer pad is disposed between the bit leg and the fixed blade, the stabilizer pad extending radially outward to substantially the gage surface. The radially outermost gage surface of each blade can extend axially downward parallel to the bit axis or angled (non-parallel), spirally or helically, relative to the bit axis.

Abstract: A wet disconnect system with post disconnection pressure integrity includes a bridge tube. One or more seals on the bridge tube that seal the bridge tube to one or more conductors passing through the bridge tube. A defeatable seal/anchor at the bridge tube sealing an outside surface of the bridge tube to an inside surface of a separate structure. The defeatable seal/anchor being defeatable upon application of an axial load above a threshold.

Abstract: Earth-boring tools comprise a body comprising at least one pocket extending into the body. A first discrete cutting element segment is secured within the at least one pocket. At least another discrete cutting element segment is secured within the at least one pocket. Methods of forming a cutting structure secured to an earth-boring tool comprise disposing at least one discrete cutting element or at least one cutting element segment within a pocket or recess formed in a blade extending longitudinally and radially over a face of a body. At least one discrete wearable element or at least another discrete cutting element segment is disposed within the pocket or recess. The at least one discrete cutting element or at least one discrete cutting element segment and the at least one discrete wearable element or at least another discrete cutting element segment are secured to the blade within the pocket or recess.

Abstract: A cutting element includes a modified gilmoid having two planes defining a plurality of cutting edges thereon, and a first support extending from a central area of a first of the two planes and a second support extending from a central area of a second of the two planes. The supports are sized and positioned such that when the cutting element is resting against a planar surface such that one of the plurality of cutting edges and the first support are in contact with the planar surface the first plane forms an acute angle with the planar surface.

Abstract: An apparatus for removing a liquid and a material that is not a liquid in contact with the liquid from a borehole penetrating the earth includes a mechanical pump configured to pump the liquid and material from the borehole and a motor configured to be coupled to the mechanical pump. The apparatus further includes a variable speed motor drive configured to be coupled to the motor. The variable speed motor drive is configured to energize the motor in continuous cycles to operate the pump, each cycle comprising operating the pump at a first speed for a first time interval to remove the liquid and not the material and operating the pump at a second speed greater than the first speed for a second time interval to remove the liquid and the material.

Abstract: A seal assembly including a first tubular having a sealing surface and a seal element run with the first tubular and displaced from the surface. The seal element initially has a radial dimension that forms a radially innermost or outermost sealing dimension of the first tubular for enabling the first tubular to be sealed with a second tubular radially disposed with the first tubular. A mechanism is included that is triggerable for reconfiguring the radial dimension of the seal element. The sealing surface of the first tubular operative forms the radially innermost or outermost sealing dimension of the first tubular when the radial dimension of the seal element has been reconfigured for enabling the sealing surface of the first tubular to receive a second seal element. A method of sealing tubulars is also disclosed.

Abstract: Embodiments of the disclosure relate to directing a flow from a borehole termination structure. Embodiments include a device for containing fluid flow from a borehole. The device includes an engagement body and a sealing member located within a cavity of the engagement body. The cavity is configured to receive a portion of a borehole termination structure extending from the borehole and to direct fluid from the borehole into a fluid conduit. The sealing member has a changeable shape configured to surround the borehole termination structure and to form a seal between an outer surface of the borehole termination structure and an inner surface of the body of the containment assembly based on the borehole termination structure being positioned within the cavity.

Abstract: A fluid separation system including a fluid mixture including a first fluid component dispersed in a second fluid component. A plurality of micro- or nanoparticles is operatively arranged in the fluid mixture to stabilize the fluid mixture by adhering to interfaces of the first fluid component. A magnetic element is operatively arranged for forming a magnetic field through the fluid mixture. The micro- or nanoparticles are magnetically responsive to the magnetic field for urging the first fluid component in a direction defined by the magnetic field. A method of separating fluids is also included.

Abstract: Different types of localized corrosion, erosion corrosion and other types of corrosion may be detected and identified by examining or viewing a solid surface where corrosion is occurring or has occurred to obtain an image therefrom. The image is then represented as a three-dimensional mathematical surface, which is then fit to a parametric surface composed of one or more curved and/or polygonal surfaces. Representative parameters are determined from the parametric surface. The corrosion type is identified by the best fit of the parameters known to be correlated (or caused by) a particular type of corrosive activity or agent for a given substrate.

Abstract: In one aspect a method of estimating a property of interest of a formation is provided, which method in one embodiment may include: injecting nanoexplosive elements into the formation, detecting signals responsive to explosion of the nanoexplosive elements by one or more sensors, and processing the detected signals by a processor to estimate the property of interest of the formation.

Abstract: A jarring device includes an outer housing which defines an axial flow path therethrough. An impact rotator is retained within the housing and is rotatable therewithin between a first rotational position and a second rotational position to create a jarring impact. A torsional spring biases the impact rotator toward the first rotational position. Fluid flow through the housing rotates the impact rotator from the first to the second rotational position.

Abstract: Fluid systems may contain elements to provide changes in bulk fluid density in response to various environmental conditions. One environmental driver to the variable density is pressure; other environmental drivers include, but are not limited to, temperature or changes in chemistry. The variable density of the fluid is beneficial for controlling sub-surface pressures within desirable pore pressure and fracture gradient envelopes. The variability of fluid density permits construction and operation of a wellbore with much longer hole sections than when using conventional single gradient fluids.

Abstract: An instrument for performing measurements downhole includes: at least one gamma-ray detector with azimuthal sensitivity equipped for discriminating energy of incident gamma-rays. This instrument is equipped with or without a neutron or gamma-ray source. A method and computer program product providing the azimuthal sensitivity of the instrument is provided.

Abstract: A movable member position-sensing device includes a sensor and a biasing member in operable communication with both the sensor and a movable member such that it can generate a bias to both the sensor and the movable member and configured to communicate a parameter to the sensor indicative of a position of the movable member.

Abstract: In an aspect, method for stimulating fluid flow in a wellbore is provided, the method including placing a fluid jetting valve in a tubular, conveying the tubular in a wellbore with the fluid jetting valve in a closed position and changing a pressure within the tubular to move the fluid jetting valve to an open position. In addition, the method includes directing a stimulation fluid through the open fluid jetting valve into a wall of the wellbore and moving the fluid jetting valve to a permanently closed position via a passive control device.

Abstract: An illustrative embodiment of a method is disclosed for assessing image quality of a down hole formation image, the method comprising collecting acquisition system data from a plurality of sensors down hole; applying a set of rules to the acquisition system data to obtain an acquisition quality indicator; and presenting the acquisition quality indicator at a surface location. A system is disclosed for performing the method.