Abstract: A method and apparatus for a perforating gun having a movable detonator holder in a first perforating gun that is positioned inside the carrier such that the detonator is not directly positioned end to end nor side by side with the detonating cord in the loading tube. When a second perforating gun is screwed onto the first perforating gun, the entire charge tube assembly moves, closing the detonator holder further into the carrier such that the detonating holder closes in on the detonating cord until the detonator is adjacent to the detonating cord to connect the detonator to detonating cord ballistic train.

Abstract: A system for use within a gun housing of a perforating gun may include a centralizer and a detonator holder. The centralizer may include a centralizer body and a centralizer bore extending through the centralizer body. The detonator holder may be disposed within the centralizer bore and may include a first detonator holder end configured to receive a detonator and a second detonator holder end comprising a detonator holder coupling. The detonator holder may extend through the centralizer and may be mechanically coupled to the centralizer. The centralizer may be configured to engage with an inner surface of the gun housing.

Abstract: The invention relates to hydraulic fracturing (HF) of reservoir beds and can be used to identify the parameters to be applied for calculating and analyzing operations during the intensification of the fluid inflow from a reservoir during HF. The disclosed method allows identification of zones of HF fracture development, leakage in the shut-off plug and the production string, existence of overflows through liner hanger packers, confirmation of the opened HF port in the specified zone, determination of whether there is fluid injectivity downstream of the HF port, confirmation of HF injections in a given interval, determination of deflector operation during repeated HF activities on non-closable ports/perforation zones, and analysis of the perforation shots based on the pressure data records. The disclosed solution results in increasing the efficiency of the hydraulic fracturing process in complicated geological and physical environments.

Abstract: A well system includes an electrically operated wireline-retrievable subsurface safety valve (WLSSSV) disposed in a landing nipple assembly attached to a production tubing string. The WLSSSV includes an electrical actuator and a first electrical connector. The nipple assembly includes a second electrical connector on a first end of a lever that pivots on a fulcrum as a second end of the lever engages against an external surface of the WLSSSV as the WLSSSV is inserted into the main bore of the nipple assembly, thereby rotating the second connector towards the first connector to at least partially align the second connector with the first connector for electrical engagement of the first connector with the second connector.

Abstract: A perforating gun system may include a central support structure and a plurality of charges secured to the central support structure. Each charge of the plurality of charges is configured to perforate a casing and/or sidewall of a wellbore upon detonation. Further, the plurality of charges comprises a first group of charges and a second group of charges, and each charge of the second group of charges is radially offset from each charge of the first group of charges with respect to the central support structure.

Abstract: A nozzle or use in an earth-boring tool includes an inlet having a first size. The nozzle further includes an outlet having a second size different from the first size of the inlet. The nozzle also includes a fluid passage defined in the nozzle from the inlet to the outlet. The fluid passage includes a transition region configured to transition the fluid passage from the first size of the inlet to the second size of the outlet. The transition region includes a first arc curving inward and a second arc curving outward.

Abstract: A perforating gun assembly that orients one or more shaped charges within a well includes a housing and an orienting internal assembly configured to be disposed within a longitudinal bore of the housing. The orienting internal assembly may include at least one shaped charge holder or charge tube, a rotation support system, a detonator holder and/or a detonator. The rotation support system may be configured so that the detonator holder and/or detonator rotate together as a whole with the at least one shaped charge holder or charge tube. The rotation support system may include at least one bearing assembly, a plurality of rollers, or combinations thereof. The orienting internal assembly may be configured for gravitational orientation.

Abstract: Method of removing casing from a well, in which an annulus between the outside of the casing and the inside of a surrounding downhole body is at least partially filled by debris, the perforated section of casing is washed in casing lengths shorter than the perforation length and an attempt made to pull the casing after each shorter length is washed. If the casing is free after washing only a shorter section of the perforated section of casing then it can be recovered and saves the washing time. A bottom hole assembly is described which includes a downhole power tool to exert a greater force to pull the section of casing between washing steps.

Abstract: An improved perforating gun system. The perforating gun system includes a perforating gun having a shaped charge positioning tube that is securely received within a female opening in a tandem to provide a 360-degree connection to ground. The shaped charge positioning tube includes segmented end portions that extend over first and second contact housings. Each contact housing includes a contact pin that is biased outwardly by a spring, the spring comprising a portion of an electrical path for a firing signal.

Abstract: An electric submersible pump assembly that has a motor, a pump, and a slip assembly. The pump is driven by the motor to flow production fluid up the wellbore through a wellbore string. The slip assembly is attached to the electric submersible pump assembly and resides downhole of the motor. The slip assembly has a first slip and a second slip. The first slip is coupled to the electric submersible pump assembly at or downhole of the motor. The first slip is flexible and engages, with the second slip set, the wall of the wellbore to dampen a vibration of the motor. The second slip is coupled to the electric submersible pump assembly at or downhole of the motor, and is set on a wall of the wellbore, securing the electric submersible pump assembly to the wall of the wellbore.

Abstract: Apparatuses for injecting a plurality of satellites into a wellhead are disclosed. The apparatuses have a housing with an axial bore therethrough in communication with a wellbore of the wellhead. One or more satellite cartridges are arranged radially around the axial bore on a surface of the housing, each of the one or more satellite cartridges for releasably retaining at least one of the plurality of satellites. One or more actuators move the one or more satellite cartridges in alignment with the axial bore to inject one of the plurality of satellites into the axial bore. The apparatuses are operable in a system comprising a staging block in communication with the axial bore, a first actuator to selectably obstruct fluid communication between the staging block and the axial bore, and a second actuator to selectably obstruct fluid communication between the staging block and the wellbore.

Abstract: The present invention relates to a system and a pressure activated valve for preventing fluid from passing through an ICD during installation and commissioning of a production string in a well bore. Further the invention relates to a method for operating the pressure activated valve. The pressure activated valve can be arranged outside the production string being configured to hinder fluid from entering the ICD from a reservoir when the pressure activated valve is closed and to allow fluid from entering from the reservoir when pressure activated valve is open.

Abstract: Described herein are systems and techniques for monitoring for monitoring and evaluating conditions associated with a wellbore and wellbore operations that use neural operators instead of computationally intensive iterative differential equations. Such systems and techniques allow for determinations to be made as operations associated with a wellbore are performed. Instead of having to wait for computationally intensive tasks to be performed or take risks of proceeding with a wellbore operation without real-time evaluations being performed, these wellbore operations may be continued while determinations are timely made, thus improving operation of computing systems that perform evaluations and that make decisions regarding safely and efficiently performing wellbore operations such as drilling a wellbore, cementing wellbore casings in place, or injecting fluids into formations of the Earth.

Abstract: A downhole tool suitable for use in a wellbore, the downhole tool having a packer chassis. There is a first fingered member disposed on the chassis, and also a second fingered member disposed on the chassis. In a run-in configuration, the first fingered member has a slot proximately aligned with a midpoint of a finger of the second fingered member.

Abstract: This disclosure describes, in part, systems and structures for a rotary cone drill bit having a body and rolling cone cutters, wherein the rolling cone cutters are coupled to the body through a bearing retention interface including ball bearings in a captured channel between the body and the rolling cone cutters. The ball bearings are inserted through an opening that is subsequently filled with a retainer pin having an engagement feature that ensures alignment of the retainer pin with respect to the captured channel and the ball bearings to reduce wear within the rotary cone drill bit.

Abstract: A coupler system comprising: a coupler; first, second, and third bulkheads included in the coupler; an electrical switch included in the coupler, wherein the electrical switch includes a printed circuit board (PCB); wherein the first, second, and third bulkheads respectively include first, second, and third bulkhead electric contacts, and the first, second, and third bulkhead electric contacts include no resilient members; wherein: (a) the first bulkhead is to couple to a first proximal electrical contact of a proximal connector of a perforation gun, (b) the second bulkhead is to couple to a second proximal electrical contact of the proximal connector of the perforation gun, and (c) the third bulkhead is to couple to a distal electrical contact of a distal connector of another perforation gun. The coupler includes proximal and distal sacrificial blast plates.

Abstract: A downhole perforation tool includes an upper sub-assembly configured to couple to a downhole conveyance within a wellbore that is formed from a terranean surface toward a subterranean formation; and a plurality of perforation sub-assemblies. Each perforation sub-assembly includes one or more perforation guns, and one or more ports configured to fluidly couple the wellbore with a bore that extends from the one or more ports to the upper sub-assembly. The downhole perforation tool further includes a main wellbore seal positioned between the upper sub-assembly and the plurality of perforation sub-assemblies and actuatable to anchor the downhole perforation tool to a casing in the wellbore. The downhole perforation tool further includes at least one secondary wellbore seal positioned between adjacent perforation sub-assemblies of the plurality of perforation sub-assemblies.

Abstract: A stop collar for mounting to a downhole tubular includes: a cylindrical housing having a threaded inner surface and a tapered inner surface; a compressible slip ring having teeth formed in an inner surface thereof and a pair of tapered outer surfaces; a cam ring having a tapered inner surface; a seal receivable in the housing; a cylindrical bolt having a threaded outer surface. A natural outer diameter of each ring is greater than a minor diameter of the threaded surfaces. Screwing the threaded surfaces of the housing and the bolt is operable to drive the tapered surfaces together and compress the seal, thereby compressing the slip ring such that the teeth engage a periphery of the tubular and energizing the seal into engagement with the periphery of the tubular.

Abstract: A system including an instrumented sub for supporting subterranean operations, the instrumented sub can include an upper and lower portion with a flow passage extending therethrough, and a valve that selectively permits or restricts fluid flow through the flow passage, and a rotary interface coupled to the upper portion and including a rotary portion and a stationary portion, where the rotary portion is rotationally fixed to the upper portion and rotates with the upper portion, where the stationary portion is rotationally coupled to the rotary portion, and where the rotary interface transfers communication signals between the stationary portion and the rotary portion to transmit commands or data to or receive the commands or data from one or more components of the instrumented sub. Can also include a method of using the instrumented sub to determine a vertical position or movement of a top drive.

Abstract: Systems and methods for using a continuous, thermoplastic tubing as a casing in a wellbore are provided. A continuous, thermoplastic tubing can be a high density polyethylene (HDPE) material that is stored in a coiled manner on a spindle. A screen can be attached to an end of the casing, and a tremie line can be selectively connected to the screen to inject gravel and cement downhole to pack the screen in place and grout the casing in place in the wellbore. The use of a continuous, thermoplastic tubing removes joints from the casing to improve performance, and such tubing is more readily available and cheaper than alternatives among other benefits described herein.