Abstract: A dump bailer for being filled with a flowable material in a lubricator assembly and for depositing the flowable material in a wellbore, wherein the dump comprises a filling valve for filling flowable material into the dump bailer and a means for orientation of the dump bailer along a longitudinal axis. The invention also relates to a lubricator assembly configured to allow filling a flowable material into a dump bailer positioned within the lubricator assembly, wherein the lubricator assembly comprises an inlet for injection of flowable material and a guide for providing the dump bailer with a correct position and orientation. The invention further relates to a method for filling a flowable material into a dump bailer positioned within a lubricator assembly and for depositing the flowable material in a wellbore.

Abstract: An apparatus for use in a downhole tool is provided. The apparatus includes a membrane configured to isolate an internal environment of the downhole tool from one or more further environments, internal and/or external to the downhole tool; and an electrical element configured to conduct an electrical current. The electrical element is positioned with respect to the membrane such that energy generated by the electrical current passing through the electrical element is incident on the membrane. The membrane is configured to be weakened and/or ruptured when the energy is incident thereon to allow fluid communication between the internal environment and the further environment.

Abstract: Systems and methods for controlling heating of a hydrocarbon medium using a signal generator and a load having frequency and time dependent impedance. A desired heating life cycle is determined. A current state is determined using a model of the medium and the load. A desired operational state is determined from the current operational state and the desired heating life cycle. The desired operational state is selected to maximize a fit between the desired operational state and the desired heating life cycle. Desired signal generator control settings are determined for the signal generator in order to achieve the desired operational state. An output signal is generated using the signal generator by applying the at least one desired signal generator control setting to the signal generator. The output signal is defined to excite the load and thereby heat the hydrocarbon medium.

Abstract: A system for monitoring the volume of cuttings exiting a shaker table is disclosed. The system comprises a shaker table configured to be adjusted based on information compiled by a processor and at least one camera configured to monitor said shaker table. The camera may be operably connected to the processor. The processor may be configured to identify drill cuttings and estimate the volume of the cuttings exiting the shaker table using machine vision techniques.

Abstract: A flow splitting device for gas reverse circulation drilling, including: an upper joint for connecting with a double-wall drill pipe; an inner tube which is arranged in the upper joint and defines a first passageway in communication with an inner chamber of the double-wall drill pipe, a second passageway in communication with an annular space in the double-wall drill pipe formed between the inner tube and the upper joint; a lower joint, having an upper end fixedly connected with the upper joint and a lower end for connecting with a drill tool; and a flow guiding member provided between the upper joint and the lower joint. A flexible sealing mechanism is provided outside the upper joint. The flexible sealing mechanism extends radially outward relative to the upper joint and the lower joint to form a sealing contact with a wellbore wall.

Abstract: An apparatus having one or more printed electrical interconnections is disclosed. The apparatus may include a chassis component of a drill string. The chassis component is configured to receive an electronic component. The apparatus also includes one or more printed electrical interconnections disposed proximate to the chassis. The one or more printed electrical interconnections are configured to communicatively connect with the electronic component.

Abstract: A downhole tool has a directional pad that contacts a wellbore wall at a pad contact location and a drill bit with at least one active cutting element that contacts the wellbore wall at a cutting element contact location. A contact distance between the pad contact location and the cutting element contact location being 3 in. (7.6 cm) or less.

Abstract: The present application relates to a Kelly bar arrangement for a drilling apparatus and a method for working the ground with the drilling apparatus. The arrangement includes a tubular outer Kelly bar and an inner Kelly bar which is displaceably supported inside the outer Kelly bar and has a rope suspension. The drilling torque can be transmitted between the outer Kelly bar and the inner Kelly bar. At least one line is arranged on the inner Kelly bar. A rotary feedthrough with a first attachment section and a second attachment section is arranged in a lower or upper end region of the inner Kelly bar. The rotary feedthrough includes a rotary device arranged for actively rotating the two attachment sections relative to each other.

Abstract: A method for the identification of operational problems in wells that produce by gas-lift, including allowing the hydrodynamic evaluation of the well/lines set by injection of at least one alcohol in the gas-lift line, collecting samples at the well sampling point, and detecting alcohol passage and return by direct analysis of information about process variables provided by the well instrumentation.

Abstract: A method of sealing a well having a casing wall comprises transporting a camera into the casing wall making a visual recording by visually recording perforations, microfractures or other breach type damages of the wall and vertical location thereof on the wall. Selecting a vertical location for sealing the well, the vertical location being determined from the visual recording. Transporting an expandable sealing device being made of an expandable metal and a hydraulic cylinder attached to the sealing device by a shear pin into the well. Expanding the sealing device to engage the casing wall such that a gas seal is made between the sealing device and the casing wall, the sealing device being expanded through engagement by the hydraulic cylinder.

Abstract: Method and system for well testing under full field production comprising isolating well flow from one of multiple wells and running the well flow through a dedicated test slug suppression and gas removal unit and at least one isolated and dedicated inclined tubular separator for testing.

Abstract: A technique facilitates precision fluid conveyance and placement to one or more desired locations in a borehole, e.g. a wellbore. According to an embodiment, a material container, e.g. a fluid container, and/or a fluid flow path system may be deployed downhole via coiled tubing. A release system is selectively actuatable to release a specific amount or amounts of material, e.g. treatment fluid, at the one or more desired locations along the borehole. Depending on the application, various discharge mechanisms and/or supply mechanisms may be used in cooperation with the material container and/or fluid flow path system to provide the precision fluid conveyance and placement.

Abstract: A horizontal directional drilling method includes operation of a HDD machine to power a drill string terminating at a drill head to create an underground borehole extending at least partially horizontally between an entry point and an exit point. A utility line and a pair of insulated wires are attached to the drill string at the exit point. An observation device is also attached to the drill string, and the observation device is connected with an uphole module via power line communication (PLC) over the pair of insulated wires. The horizontal directional drilling machine performs a pullback of the drill string, with the utility line, the pair of insulated wires, and the observation device connected thereto, back toward the entry point. Data from the observation device are displayed on the uphole module during pullback of the drill string.

Abstract: A running tool which includes a mandrel, a thread engager disposed upon the mandrel, a support supporting the thread engager in a first position and unsupporting the thread engager in a second position, and a torque dog sub including a torque dog, a lock dog, and lock dog sleeve disposed on the mandrel. A liner system which includes a liner system component, a running tool engaged with the liner component. A borehole system including a borehole in a subsurface formation, and a liner system in the borehole. A method for releasing a liner including pressuring up on the running tool, shifting the lock dog sleeve, and slacking weight to shift the support. A method for releasing a liner including applying neutral set down weight to the running tool, rotating the support, slacking weight to shift the support, and moving the tool out of engagement with the liner.

Abstract: A method for drilling a subterranean wellbore includes rotating a drill string in the subterranean wellbore to drill the wellbore. The drill string includes a rotary steerable tool or a steerable drill bit including at least first and second axially spaced pads configured to extend radially outward from a tool body and engage a wall of the wellbore. Radial displacements of each of the first and second axially spaced pads are measured while drilling. The measured radial displacements are processed to compute a rate of penetration of drilling.

Abstract: An apparatus for punching an anchor bolt insertion hole is disclosed. The apparatus enables punching work for forming the anchor bolt insertion hole, of which the bottom side is wider than an inlet, on a panel surface for constructing a concrete structure to be performed regardless of the skill of a worker. During operation, the apparatus provides the movement direction of a hammer drill into the vertical direction and the inclination direction so as to enable precise punching work, and doubly arranges springs, which are elastic devices for adjusting the movement range of the hammer drill, so as to uniformly maintain the angle and size for cutting a wall such that a cross-sectional diameter is large at a portion adjacent to the bottom of the anchor bolt insertion hole.

Abstract: Disclosed are small model pit launch horizontal direction drills suitable for drilling a substantially horizontal bore hole and laying pipe underground from within a surface dug pit. The devices comprise a stationary frame and a carriage component competent to move forward and back along the frame and drill and retrieve an attached drill stem through an aperture in the frame. The carriage components are configured to allow an operator to straddle the carriage and operate the device from a seated position within the frame component interior.

Abstract: A downhole conveyance line cutter operable to be conveyed downhole within a wellbore along a conveyance line that conveys a tool string within the wellbore, connect to the conveyance line, and cut the conveyance line. The downhole conveyance line cutter may comprise a body, a cutting member operable to cut the conveyance line, and a clamping mechanism operable to connect the downhole conveyance line cutter to the conveyance line. The clamping mechanism may comprise a clamping member pivotably connected with the body and an actuator operable to pivot the clamping member to cause the clamping member to engage the conveyance line thereby connecting the downhole tool to the conveyance line such that the downhole tool can be retrieved out of the wellbore via the conveyance line after the downhole tool cuts the conveyance line.

Abstract: A drilling assembly comprises a drill bit and a cutting assembly. The drilling assembly forms a longitudinal center axis. The drill bit and cutting assembly fastened to a rotatable spline drive assembly. The cutting assembly resiliently displaceable to the drill bit along the center axis such that in a first position the drill bit is surrounded by the cutting assembly, and in a second position a free end portion of the drill bit is projecting beyond the cutting assembly along the center axis. The cutting assembly comprises an endmill. The endmill comprises a central through hole complementary to the outer diameter of the drill bit. A method for cutting swarfs created by drilling, with an endmill, is described.

Abstract: Coupling for transmission of torque, speed, and hydraulic thrust from a power section of a motor to a drive or output shaft. The coupling has a pair of mated hubs each with cantilevered teeth extending therefrom. The teeth are irregular in shape with an “S” curved driver side, a slanted unloaded surface, and a tooth base broader that the tooth top, which provide improved torsional and fatigue strength and wear resistance to the coupling. The coupling has utility in single and double articulation as a transmission in a mud motor for downhole directional drilling of subterranean formations. The coupling also has utility in other drilling operations employing motors requiring couplings of or for single or double articulation for minerals, geothermals, and HDD associated underground utilities. The invention further has utility with coiled tubing drilling and any power transmission equipment either with angular misalignment or direct drive.