A downhole tool suitable for use in a wellbore, the tool having a chassis or mandrel, with a center element and a plurality of support elements disposed therearound. The downhole tool also includes a first fingered member, and a second fingered member. In a run-in configuration, the first fingered member has a slot axially aligned with a midpoint of a finger of the second fingered member.

A downhole tool includes a housing configured to be connected between two tubular members. The housing includes a chamber and a plug assembly is disposed in the chamber and divides the chamber into an up-hole portion and a downhole portion. The plug assembly includes a glass member having a predetermined residual surface compression, at least a first face, and at least one strength-reducing surface feature on the first face. The strength-reducing surface feature is configured to cause the glass member to disintegrate when the glass member is exposed to a pressure in the up-hole portion of a magnitude that creates a tensile stress on the first face that exceeds the predetermined residual surface compression.

The present invention discloses a permanent packer and an extended gas lift method using the permanent packer, the method comprising: S1. imbedding the extended gas lift embedded pipe when setting the permanent packer, wherein the extended gas lift embedded pipe has an upper end being closed and a lower end being open, is provided therein with a one-way valve through which the fluid can pass from top to bottom; S2. lowering a breaking device from the production casing when in the extended gas lift, to break the upper end of the extended gas lift embedded pipe such that the upper and lower ends of the extended gas lift embedded pipe are communicated; and S3. injecting gas into the production casing, lifting the accumulated liquid in the bottom hole to the ground surface, to complete the extended gas lift. The method does not affect the sealing property of the permanent packer, can fully adapt to the demand in the early and middle stages of gas well development, and meanwhile can realize extended gas lift without workover in the middle and later stages of gas well development, and has low implementation cost and good safety.

A sealing element for a rotating control device includes an elastomeric body having a central bore for sealing against a pipe passing therethrough. The elastomeric body has an upper portion which is internally reinforced with a frame and a lower portion formed with a plurality of protrusions. The radial protrusions provide columnar support to the lower portion permitting the lower portion to resist centrifugal and frictional forces against the lower portion during drilling and other operations. The sealing element may be used to form an assembly with reusable parts for connecting the sealing element to a mandrel of a rotating control device.

A 3DP preparation process of a high-strength rapid-dissolving magnesium alloy for an underground temporary plugging tool is disclosed by the present disclosure, comprising the following steps: 1) evenly mixing ingredients of material components; 2) importing the shape of a product needing to be printed into a computer control system, and printing alloy powder and glue in a 3D printer in an alternate spraying molding mode to obtain a blank with the needed shape; 3) drying the blank obtained in the step 2) and then carrying out degreasing and sintering in a protective atmosphere or vacuum; and 4) sintering the blank obtained in the step 3) at a high temperature of 570° C.-680° C. in the protective atmosphere or vacuum and then cooling to a room temperature.

A plug system including: a plug tubular including a tubular body, an upstream tubular connection, and a downstream tubular connection; wherein: the upstream tubular connection and the downstream tubular connection are openings at opposite ends of the tubular body; and a plug assembly arranged in a housing including: a plug; a breaker object; and a seat; wherein: the plug is supported by the seat; the plug assembly has a first position and a second position; wherein in the first position, the plug intact; and in the second position the plug has been broken by the breaker object; wherein: the plug is stationary with respect to the housing in both the first and second position; there is a fluid connection between the upstream tubular connection and the downstream tubular connection: and the tubular body is a single continuous piece; and wherein the plug assembly is entirely arranged within the plug tubular.

A process is directed at plugging a wellbore, wherein the wellbore has a portion extending at least partially through a caprock composed of salt rock. The process includes applying a barrier in the wellbore at or above the caprock. Thereafter, the process includes a step of promoting creep such that the salt rock in the caprock creeps into the wellbore to create a salt-rock plug in the wellbore, and hence, closes off the portion of the wellbore above the salt-rock plug from fluid flow communication with the portion of the wellbore below the salt-rock plug.

The disclosure provides for a method for sampling fluid from a subterranean formation that is intersected by a wellbore. The method includes performing an initial draw-down at a target interval in the wellbore to pump fluid from the subterranean formation with a 3D radial probe. The method includes isolating the target interval of the wellbore with a packer and providing a residence time within a dead volume of the packer to allow fluid therein to separate into hydrocarbon and water phases. The method includes pumping a sample of the hydrocarbon into a sample chamber while pumping a remainder of the fluid into the wellbore, and testing the sample to determine a hydrocarbon content of the sample.

An expandable packer includes an activatable sealing element locatable in a borehole having a wall and activatable with a reactive fluid. The sealing element includes a swellable metal capable of reacting with the reactive fluid to form a swelled metal and a mechanical element separating the reactive fluid from the swellable metal and operable to cause the reactive fluid to contact the swellable metal such that swellable metal expands into sealing engagement with the wall. A method of forming a seal in a borehole comprising a wall includes locating an expandable packer comprising an activatable sealing element within the borehole, using a mechanical element of the activatable sealing element to cause a reactive fluid to contact a swellable metal, and expanding the swellable metal into sealing engagement with the wall by reacting the swellable metal with the reactive fluid.

A diverter assembly may include a diverter body assembly. The diverter body assembly may also include a diverter body, the diverter body fluidly coupled to the annulus of a wellbore via a casing or riser, and the diverter body including one or more diverter outlet ports fluidly coupled to the annulus of the wellbore. The diverter body assembly may also include an upper packer assembly. The upper packer assembly may include a packer sleeve, the packer sleeve mechanically coupled to the diverter body. The packer sleeve may include one or more breach lock slots. The upper packer assembly may also include an upper packer body having one or more packer breach lock tabs engaged with the breach lock slots of the packer sleeve. The diverter assembly may also include a diverter support housing, the diverter support housing coupled to the diverter body assembly.