Abstract:
The present invention provides a system and method of generating one or more perforations in a well casing while simultaneously restricting burr formation. The perforating gun assembly of the present invention includes a gun housing having an outer surface designed to engage the inner surface of the well casing. In one embodiment, at least a portion of the outer surface of the gun housing substantially corresponds to the inner surface of the well casing. The position of the gun housing engaging the inner surface of the well casing restricts burr formation both upon the inner surface of the well casing and the outer surface of the gun during explosive charge detonation.
Abstract:
Well operating elements are described, one embodiment comprising a first component that is substantially non-dissolvable when exposed to a selected wellbore environment and a second component that is soluble in the selected wellbore environment and whose rate and/or location of dissolution is at least partially controlled by structure of the first component. A second embodiment includes the component that is soluble in the selected wellbore environment, and one or more exposure holes or passages in the soluble component to control its solubility. The second embodiment may or may not include a substantially non-dissolvable component. Methods of using the well operating elements in oilfield operations are also described. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims.
Abstract:
An assembly having plural valves is run into a wellbore having plural zones, where each of the valves is actuatable by dropping a valve-actuating object into the corresponding valve. The valves are successively actuating, in a predetermined sequence, to an open state. The zones are successively tested after actuating corresponding valves to the open state.
Abstract:
An apparatus includes a string that extends into a well and a tool that is disposed in the string. The tool is adapted to form a seat to catch an object communicated to the tool via a passageway of the string in response to the tool being perforated.
Abstract:
A completions assembly having an autonomous self-sustaining portion powered by an atomic battery. The atomic battery may be of a non-based beta voltaic variety configured to provide uninterrupted power to the autonomous portion of the assembly for substantially the life of the well. Thus, continuous monitoring of well conditions or low power actuations, via sensors and/or actuators of the autonomous portion, may be supported. As a result, the autonomous portion may be operated in a fully wireless manner without the requirement of hard wiring to the main bore/surface connected portion of the completions assembly.
Abstract:
Systems and methods for downhole completions. A downhole running tool can have a body having a bore formed therethrough. A latch member can be disposed on a first portion of the body. A reset member can be disposed on a second portion of the body. A conduit can be formed within a sidewall of the body. The conduit can be located between the first and second portions of the body. A pressure relief port can be disposed at a first end of the conduit; and a first flow port can be disposed at a second end of the conduit. The pressure relief port and first flow port can be in communication with an outer diameter of the body.
Abstract:
A completions system utilizing a unique hydraulic coupling. The system includes an upper completion stinger configured for coupling to a lower completion tubular. Both the stinger and the tubular are outfitted with hydraulic lines therethrough. Thus, as the stinger is coupled to the tubular, hydraulic lines are also coupled. However, the termination of each line is sealingly covered by a slidable sleeve in advance of attaining the coupling between the stinger and tubular. Therefore, the lines are protected from contamination during potentially significant periods of well deployment that may occur in advance of completed coupling and system installation. Furthermore, the manner of hydraulic coupling between the stinger and tubular reduces the likelihood of damage to the hydraulic lines during the installation process.
Abstract:
A packer that is usable with a well includes an anchor. The anchor includes at least one spirally extending ring, which is adapted to be selectively radially expanded to secure the packer to a casing string.
Abstract:
A technique includes providing a chamber in a well tool to receive pressure to control an operation of the tool. The technique includes providing a seal to isolate the chamber from well pressure. The technique also includes providing a pressure relief mechanism to relieve pressure from the chamber in response to the pressure exceeding a threshold.
Abstract:
A packer that is usable with a well includes an anchor. The anchor includes at least one spirally extending ring, which is adapted to be selectively radially expanded to secure the packer to a casing string.