Abstract:
Devices, systems and methods for equalizing pressure in a gas well are provided. A jar device is coupled to a pump deployed in a gas well between areas of low pressure and high pressure. The jar device includes a mandrel and a no-go sleeve. A jarring tool is operated to transfer an axial force onto the jar device that is large enough to shear a shearable connection between the mandrel and no-go sleeve and thereby cause the mandrel to slide from a first position to a second position with respect to the no-go sleeve. A seal that seals between the no-go sleeve and mandrel when the mandrel is located in the first position is unsealed as a result of the movement of the mandrel and thereby fluid communication is allowed between the area of high pressure and low pressure. This allows for easier retrieval of the pump.
Abstract:
A motor winding wire. The motor winding wire may be configured for use in, and direct exposure to, a hydrocarbon environment. The motor winding wire may be electrically insulated by one polymer layer, whereas another, outer, polymer layer is employed to provide moisture resistance as well as other contaminant and hydrocarbon environment shielding to the underlying layer. Additionally, this manner of polymer layering over the motor winding wire is achieved in a manner cognizant of the limited dimension of the motor winding wire.
Abstract:
A method of preparing a cable comprises extruding first layer of polymeric material upon at least one insulated conductor; serving a first layer of armor wires upon the polymeric material; softening the polymeric material to partially embed armor wires; extruding a second layer of polymeric material over the armor wires; serving a second layer outer armor wires thereupon; softening the polymeric material to partially embed the second armor wire layer; and optionally extruding a third layer of polymeric material over the outer armor wires embedded in the second layer of polymeric material.
Abstract:
A powered fiber optic cable for use in a hydrocarbon well of extensive depth and/or deviation. The cable may couple to a downhole tool for deployment to well locations of over 30,000 feet in depth while maintaining effective surface communication and powering of the tool. The cable may be configured to optimize volume within a core thereof by employing semi-circular forward and return power conducting portions about a central fiber optic portion. As such, the cable may maintain a lightweight character and a low profile of less than about 0.5 inches in diameter in spite of powering requirements for the downhole tool or the extensive length of the cable itself.
Abstract:
A small-diameter wireline cable core has either two insulated preferably half moon profile conductors fixed together or an insulated central conductor over which three insulated conductors are helically cabled in a triad configuration. A layer of polymeric insulator covers all of the conductors to form a circular profile. A cable is formed by counterhelically cabling at least two layers of bare armor wire strength members over the cable core and encasing the strength members in one of layers of pure polymer, layers of short-fiber-reinforced polymer, and alternating layers of pure and short-fiber-reinforced polymer.
Abstract:
A method forming at least a portion of a cable comprises providing at least one cable conductor core, extruding at least an inner layer of a polymeric insulation material over the at least one conductor core, providing a plurality of strength members having a coating of the polymeric insulation material, heating the at least one cable conductor core and the strength members, embedding the strength members into the inner layer of the cable conductor core, and extruding an outer layer of the polymeric insulation material over the cable conductor core and the plurality of strength members and bonding the outer layer to the inner layer and the coating to form the cable and provide a contiguous bond between the inner layer, the strength members, and the outer layer, wherein the polymeric insulation material of the inner layer, the strength member coating, and the outer layer are amended to enable the inner layer and the outer layer to melt at a greater rate than the strength member coating.
Abstract:
An assembly for positioning a well access line in a well. The assembly is located between a supply of well access line and a well, with the line running through the assembly and to the well. Multiple pulleys are incorporated into the assembly about which a well access line such as a conventional wireline may be wrapped. The pulleys are biased to one another such that slack in the line may be stored at the assembly and drawn on in the event of line tension spiking up to a predetermined amount. As such, tension in the line may be kept to a minimum so as to avoid damage to the line during a well access operation. Furthermore, should the tension in the line fail to come back down to below the predetermined amount, the well access operation may be halted in an automated manner. Halting may proceed while continuing to allow take-up of the slack in the line until completed halting of the operation is achieved.
Abstract:
An electrical cable comprises a cable core comprising at least one electrical conductor, at least one polymeric inner layer enclosing the cable core, and at least one polymeric outer layer enclosing the cable core and the inner layer to form the electrical cable, the outer layer operable to maintain integrity of the cable within a predetermined temperature range.
Abstract:
A component is deployed into a well on a carrier line having an optical cable. An optical signal is transmitted into the optical cable, and a travel time of the optical signal in the optical cable is determined. A profile of a characteristic along the optical cable is determined, and a length of the carrier line deployed into the well is determined based on the determined profile and the travel time.
Abstract:
Electrical cables formed from at least one insulated conductor, a layer of inner armor wires disposed adjacent the insulated conductor, and a layer of shaped strength members disposed adjacent the outer periphery of the first layer of armor wires. A polymeric material is disposed in interstitial spaces formed between the inner armor wires and the layer of shaped strength members, and the polymeric material is further disposed in interstitial spaces formed between the inner armor wire layer and insulated conductor. The polymeric material serves as a continuously bonded layer which also separates and encapsulates the armor wires forming the inner armor wire layer wire layer.