29 results about "Wireline" patented technology

The utility model discloses a kind of self-adapting casing protecting wire dismounting tool, it is related to petroleum drilling technical field, including: for the inner periphery of protecting wire abutment arc-shaped support seat, the inner surface of arc-shaped support seat is equipped with buffer layer;For the outer periphery of protecting wire abutment jaw plate, jaw plate is equipped in the end of rotating handle, rotating handle and arc-shaped support seat are hinged by pin shaft, to adjust the distance between jaw plate and arc-shaped support seat by rotating rotating handle, satisfy the dismounting requirement of different size protecting wire.Arc-shaped support seat's inner surface is equipped with buffer layer, buffer layer can prevent the thread damage of protecting wire inner periphery, and protecting wire stress is relatively uniform during dismounting process, not easy to produce local deformation, significantly reduce protecting wire dismounting damage rate, and improve protecting wire dismounting efficiency;Rotating handle and arc-shaped support seat are hinged, the distance between jaw plate and arc-shaped support seat is adjustable, it is favorable to satisfy the dismounting requirement of different size protecting wire, and strong adaptability.

Provided are a wired transmission time division duplex system and a node device thereof. The node device comprises a receiver configured to receive a data frame; a transmitter configured to send a processed data frame; a frame header detection circuit configured to identify a frame header and a preamble in a non-return-to-zero coding format from the data frame based on a specific code sequence, and obtain frame header information accordingly, and detect a level jump edge in the frame header and the preamble, and output a reference clock signal based on the detection result; and a clock and data recovery circuit configured to map a multi-level digital signal of a data segment after the frame header and the preamble into binary data bits using a corresponding pulse amplitude modulation format based on the frame header information, and recover a local receiving clock based on the reference clock signal. The slave node device effectively overcomes the synchronization difficulty and slow clock recovery in a multi-level pulse amplitude modulation system.

A wireline recovery tool for retrieving a wireline from a wellbore includes an outer sheath and a rotatable spear positioned within the outer sheath. The rotatable spear includes a plurality of angled portions and a plurality of vertical portions such that the rotatable spear has an asymmetrical profile. The outer sheath includes a first and second wall, each of which includes an inner surface and an outer surface. A plurality of angled prongs extend from the inner surfaces of the first and second walls. A torque device including an indexing mechanism and ratcheting mechanism rotates the rotational spear positioned within the outer sheath. As the rotatable spears rotates, the wireline being retrieved from the wellbore becomes increasingly entangled with the rotatable spear and outer sheath, such that the wireline can be removed from the wellbore.

The invention provides a method for improving a cable formation testing process. The method for improving the cable formation testing process comprises the following steps that an oil reservoir numerical model is constructed; based on the reservoir numerical model, the influence of different suction speeds on the pressure recovery rate is simulated; and comparing the pressure recovery values and the pressure recovery stability at different pressure recovery moments to obtain an optimized cable formation testing process. According to the technical scheme, the testing process is improved, the data quality is improved, and the testing time is shortened, so that the clamping risk is reduced, and the drilling time cost is saved.

Disclosed embodiments relate to hydraulic safety valves for a well, which may be configured to close in the event of a loss of pressure for example. In embodiments, the safety valve may comprise a wireline retrievable safety valve (WRSV) configured for use within a tubing retrievable safety valve (TRSV) in a wellbore, for example to provide safety valve functionality in the event that the TRSV no longer functions properly. The WRSV may be configured to be operated using the hydraulic lines(s) of the TRSV, for example a control line and a balance line. In embodiments, a control piston of the WRSV may be in fluid communication with the control line through the TRSV, and a balance piston of the WRSV may be in fluid communication with the balance line through the TRSV. Related methods and systems are also disclosed.

Examples relate to a receiver termination detection circuit for wireline datalinks. A transmitter circuit includes positive and negative output nodes coupled through a channel to a receiver. A detection circuit comprises programmable pull-up and pull-down resistors coupled to the output nodes, and voltage comparators with independent reference voltage inputs. A mode selection input selects between single-ended and differential detection modes. Control logic drives the output nodes concurrently in single-ended mode and differentially in differential mode. The comparator outputs are sampled after a programmable time delay to detect receiver termination. The circuit supports both AC-coupled single-ended and DC-coupled differential termination detection while maintaining common-mode voltage during transitions to normal operation.

A steel cable sling with a wireless radio frequency device, having a steel cable winding out a rope loop, the part of the steel cable adjacent to the rope loop and close to a fixed section, a steel cable rope sleeve tightly sleeved on the fixed section; a fixed sheet tightly clamped between the fixed section and the steel cable rope sleeve, having a riveting part extending out of the steel cable rope sleeve, abutting a gasket structure at the riveting part and riveting a rivet between them, the rivet having a slot embedded with a carrier of a wireless radio frequency identification particle, a wireless radio frequency identification module covered in the carrier, for an external reader to read the identification information stored therein; when the steel cable sling is used, the wireless radio frequency identification particle will not swing relative to the steel cable sling, and because it is arranged in the slot, it is not easy to be damaged by collision with surrounding objects, the reliability of the wireless radio frequency identification particle can be improved, and the safety of the stored identification information is ensured.

The utility model relates to the technical field of wire controllers, in particular to a wire controller, and aims to solve the problems that an existing wire controller based on a correlation type sensing scheme leaks light and is prone to false triggering and awakening. In order to achieve the purpose, the wire controller comprises a PCB, an infrared transmitting tube and an infrared receiving head, the PCB comprises a bottom layer and a top layer which are arranged in a stacked mode, the infrared transmitting tube and the infrared receiving head are both arranged on the surface of the side, close to the top layer, of the bottom layer, and openings are formed in the positions, corresponding to the infrared transmitting tube and the infrared receiving head, of the top layer respectively. According to the scheme, the infrared transmitting tube and the infrared receiving head are both arranged on the bottom layer, the top layer can play a role in blocking the infrared transmitting tube and the infrared receiving head, light leakage is effectively avoided, and the situation that infrared light is received by the infrared receiving head before being transmitted to the external space is effectively avoided, so that the situation that the wire controller is mistakenly triggered and awakened can be avoided, and the service life of the wire controller is prolonged. And the accuracy and the sensitivity of wakeup of the wire controller are improved.

The utility model discloses a wire -laying trolley dismounting station, including placing table, turnover mechanism, first dismantling mechanism, second dismantling mechanism, material collecting mechanism, conveying line and hoist mechanism, placing table sets up hoist mechanism, along hoisting path, hoist mechanism one side arrangement conveying line, hoist mechanism other side is sequentially arranged turnover mechanism, first dismantling mechanism, second dismantling mechanism and material collecting mechanism. The utility model has the advantages of: the utility model sequentially hoists wire -laying trolley to each position through hoist mechanism, and the wheel piece, fixed frame, wheel axle and bearing of wire -laying trolley are sequentially dismantled through turnover mechanism, first dismantling mechanism and second dismantling mechanism, and the whole station has high integration degree, can quickly dismantle wire -laying trolley.

A wireline cutting tool. The wireline cutting tool comprises an elongated tubular body. A knife housing resides within the tubular body proximate an upper end, while a plunger resides within the tubular body proximate a lower end. An electric wireline passes through a bore of the knife housing and the plunger en route to an electrical connection sub. The electrical connection sub includes a pin that transmits signals from the electric wireline down to a downhole tool. The plunger is configured to slide up the bore of the lower sub in response to a first upward shear load applied by the wireline. This causes the plunger to act against knives residing within the knife housing. The knives are configured to travel up the bore of the upper sub in response to a second upward shear load applied by the plunger, pinching the wireline until severed. The second shear load is greater than the first shear load, creating a two-stage cutting tool.

1. Name of the designed product: power line robot (multi-split x-ray nondestructive testing). 2. Use of the designed product: nondestructive testing for power line. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

Embodiments of the present invention provide systems, devices and methods for improving the performance and range of wireless-wireline communication systems. In certain examples, the architecture leverages pre-existing copper within a building to allow a signal to traverse physical barriers, such as walls, on copper wire while using wireless portions of the channel to communicate signals in air both outside and inside the building. Reallocation of spectrum within this architecture is performed across various embodiments to improve performance and decrease signal attenuation and interference.

This invention relates to the field of intelligent oil production methods, specifically disclosing an intelligent oil production method and device that allows for operation-free, adjustable layered production and testing, including the following steps: (1) After pump inspection at the oil well, the production system is lowered into the well via a logging cable. The production system includes a wireless packer, a production distributor, and tubing. The production system is set in the target layer according to the quantity and depth set by the user. Then, the logging cable is disconnected and the pump is installed and the well is completed. This invention effectively suppresses interference from high water-cut layers through layered production technology, significantly increases crude oil production in low-permeability layers, and optimizes the oil well production capacity structure. It adopts remote intelligent control to achieve dynamic matching between formation opening and closing and pumping unit strokes, reducing ineffective fluid production and extending equipment service life. The entire process is automated with monitoring and closed-loop control, reducing manual intervention and improving oil well management efficiency.

Some implementations include a wireline system configured for use in a wellbore drilled through one or more subsurface formations. The wireline system may comprise a power supply positioned at a surface of the wellbore and configured to supply electrical power, a wireline cable configured for deployment from the surface into the wellbore, and a wireline assembly configured for conveyance into the wellbore via the wireline cable. The wireline assembly may include an energy storage capacitor and one or more downhole tools configured to receive stored electrical power from the energy storage capacitor.

An economical process in which cement sheath integrity, perforation cluster spacing and frac plug integrity can be assessed for every frac stage, potentially leading to improvements in stimulation, completion, cementing and drilling practices. It is based on analyzing wellbore pressure responses occurring at key segments of the wireline pump-down and perforating operation and correlating the results among multiple frac stages and wells in a field or play. A special requirement is that the frac ball (ball check) is inserted in the frac plug and pumped to seat prior to performing perforating operations. A complementary benefit of this process is that selectively establishing injectivity in the most distant perforation cluster can be used to establish inhibited HCl acid (wireline acid) coverage across all perforation intervals for uniform reduction in near-wellbore tortuosity.

The present disclosure provides techniques and apparatus for discrete multitone (DMT) modulation communications for single-mode telemetry. An example technique involves a surface acquisition module initiating a first training sequence with a downhole telemetry module using a first bandwidth of a plurality of bandwidths via a communication link between the surface acquisition module and the downhole telemetry module. A second bandwidth of the plurality of bandwidths is automatically selected for a communication session between the surface acquisition module and the downhole telemetry module using the communication link, based on the first training sequence. The second bandwidth is greater than the first bandwidth. Data is exchanged with the downhole telemetry module during the communication session based on the second bandwidth.

A method of the invention prepares a hydrocarbon-bearing formation for stimulation. A bottom hole assembly comprising a plug and a perforation tool connected to a wireline is lowered into a wellbore having a casing. An acidic composition is injected into the wellbore; wherein a spacer separates the acidic composition from said bottom hole assembly, but the acidic composition is in direct contact with both the wireline and casing. The spacer may be existing water in the wellbore or water injected into the wellbore. The plug is positioned downhole beyond a location where a first perforation area is to be made in the casing. The perforation tool is activated creating the first perforation area. The acid then contacts the first perforation area and cementitious debris generated from the casing being perforated. The perforation tool next moved up-hole to a second location and the casing is again perforated to create a second perforation area. The acid also contacts the second perforated area and cementitious debris generated from the perforated casing. The perforation tool is lastly removed from the wellbore.

The present application relates to steel box girder deflection measurement technical field, and disclose a kind of steel box girder beam body deflection measurement device and method, including wireline displacement meter body and the wireline of wireline displacement meter body outlet end arrangement, wireline displacement meter body outlet end fixedly installed at wireline outer side outlet sleeve, the pulling end of wireline is provided with pulling assembly installed on steel box girder beam body, the outer wall of outlet sleeve is provided with protective assembly for preventing water and dust from entering wireline displacement meter body outlet end, the outer wall of outlet sleeve is provided with comparison component for comparing the skew situation of wireline.The present application protects telescopic sleeve, connecting plate and other components can form sealing protection to outlet sleeve, avoid water, dust into wireline displacement meter body influence precision, when equipment is retracted, if wireline is accidentally dropped, spring and slide plate can reset action buffer to wireline, offset impact force, prevent wireline displacement meter body from being damaged due to impact, ensure the precision of long-term use of equipment.

Disclosed embodiments relate to systems for providing well intervention for a subsea wellhead. For example, the system can comprise a tool insertion system and a subsea work chamber, with the tool insertion system operatively coupled to the subsea work chamber and to the wellhead. In embodiments, both the work chamber and the tool insertion system can be disposed subsea, for example in proximity to the wellhead. In some embodiments, the work chamber may be maintained at atmospheric pressure. In some embodiments, the tool insertion system can have a retracted position which provides access to a wireline within the work chamber, and an extended position which isolates the work chamber from the tool insertion system, the distal end of the wireline, an isolation valve, and / or the wellhead.

A medication delivery device (MDD) (e.g., injection pen, wearable pump) is paired with an external device (e.g., smart phone, iPad, computer) via wireless link or wireline connection. The MDD provides to the external device captured data from the flow sensor relating to medicine delivery to a patient to ensure complete delivery and minimize MDD misuse or malfunction or inaccuracies in dosing. The MDD can have Bluetooth™ and / or near field communication (NFC) communication circuits for proximity-based pairing and connectivity with the external device for real-time or deferred transfer of captured data to the external device, depending on memory and power availability at the MDD. The MDD or external device can use captured data and corresponding time stamps to determine flow infomatics such as flow rate, total dose delivered, and dose completion status. An LED on the MDD indicates states such as powered on, paired, delivery in progress and delivery completion.

Some implementations include a wireline system configured for use in a wellbore drilled through one or more subsurface formations. The wireline system may comprise a power supply positioned at a surface of the wellbore and configured to supply electrical power, a wireline cable configured for deployment from the surface into the wellbore, and a wireline assembly configured for conveyance into the wellbore via the wireline cable. The wireline assembly may include an energy storage capacitor and one or more downhole tools configured to receive stored electrical power from the energy storage capacitor.

The application discloses a rope coring drill device capable of in-situ tensile strength test and a method thereof, relates to the drilling technology field of soil layers or rocks, and solves the problem that the existing rope coring drill device cannot test the tensile strength of rock mass. The technical scheme adopted by the application is as follows: the rope coring drill device capable of in-situ tensile strength test comprises a drill outer pipe, a fishing device and a coring device which are located in the drill outer pipe, the fishing device comprises in-situ testers, a first signal transmitter and a fishing spear which are connected in sequence, the rear end of the coring device is provided with a fishing spear head which is matched with the fishing spear, the front end of the coring device is provided with a coring pipe, the in-situ testers are internally provided with a tensile stress meter and a data acquisition module, the first signal transmitter is used for acquiring the signal that the fishing spear and the fishing spear head are connected and cutting off the drilling fluid passage around the fishing spear and the fishing spear head. The application is used for drilling and coring, and the in-situ test of the tensile strength of the rock core can be carried out during the coring.

Methods and apparatus for enhancing performance of a wireline communication network backhaul for wireless nodes based on data traffic and node characterization. In one embodiment, the node comprises a small-cell or other wireless base station (e.g., one utilizing unlicensed or quasi-licensed spectrum such as CBRS or C-Band) that is backhauled by a DOCSIS system within a managed HFC network, and the methods and apparatus utilize such factors as traffic load, geographic or topological location, node technology type, and user device profile for each node to determine scheduling of traffic over the wireline transmission medium used for the delivery of services. In another embodiment, the foregoing factors can be weighted for further determination related to an assignment of the time slots or other resources for the delivery of services.

A method to predict wireline caliper log data from logging-while-drilling data which includes collecting logging-while-drilling logs and caliper logs from a plurality of wells. The caliper log contains at least one channel. The method further includes pre-processing the logging-while-drilling data, selecting a subset of logs within the logging-while-drilling data, and aggregating the channels of the caliper logs forming aggregate logs. The method further includes splitting the pre-processed logging-while-drilling data and aggregate logs into train, validation, and test sets, wherein the validation and test sets may be the same, selecting a machine-learned model and architecture, and training the machine-learned model to form predicted aggregate logs from the logging-while-drilling data using the training set. Additionally, the method consists of using the machine-learned model to predict the aggregate logs using pre-processed logging-while-drilling data.

A depth counter for measuring depth of a wireline cable is disclosed. The depth counter includes a housing configured to receive a wireline cable therethrough along a first axis. An encoder wheel is rotatably coupled to the housing. The depth counter includes a first pair of idlers, one idler of the first pair of idlers positioned on each side of the encoder wheel. The first pair of idlers are movable relative to the housing along a second axis that is perpendicular to the first axis. The first pair of idlers are spring biased in a first direction along the second axis. The first pair of idlers are configured to bias against the wireline cable toward the encoder wheel in the first direction along the second axis. A second pair of idlers are configured to bias the wireline cable in a second direction, opposite the first direction, along the second axis.

A method of the invention prepares a hydrocarbon-bearing formation for stimulation. A bottom hole assembly comprising a plug and a perforation tool connected to a wireline is lowered into the wellbore. Acid is injected into the wellbore such that the acid is in direct contact with the perforation tool, wireline and casing of the wellbore. The plug is positioned downhole beyond a location where a first perforation area is to be made in the casing. The perforation tool is activated creating the first perforation area. The acid then contacts the first perforation area and cementitious debris generated from the casing being perforated. The perforation tool is next moved up-hole to a second location and the casing is again perforated to create a second perforation area. The acid also contacts the second perforated area and cementitious debris generated from the perforated casing. The perforation tool is lastly removed from the wellbore.

Disclosed embodiments relate to systems for providing well intervention for a subsea wellhead. For example, the system can comprise a tool insertion system and a subsea work chamber, with the tool insertion system operatively coupled to the subsea work chamber and to the wellhead. In embodiments, both the work chamber and the tool insertion system can be disposed subsea, for example in proximity to the wellhead. In some embodiments, the work chamber may be maintained at atmospheric pressure. In some embodiments, the tool insertion system can have a retracted position which provides access to a wireline within the work chamber, and an extended position which isolates the work chamber from the tool insertion system, the distal end of the wireline, an isolation valve, and / or the wellhead.

Disclosed embodiments relate to systems for providing well intervention for a subsea wellhead. For example, the system can comprise a tool insertion system and a subsea work chamber, with the tool insertion system operatively coupled to the subsea work chamber and to the wellhead. In embodiments, both the work chamber and the tool insertion system can be disposed subsea, for example in proximity to the wellhead. In some embodiments, the work chamber may be maintained at atmospheric pressure. In some embodiments, the tool insertion system can have a retracted position which provides access to a wireline within the work chamber, and an extended position which isolates the work chamber from the tool insertion system, the distal end of the wireline, an isolation valve, and / or the wellhead.

This invention provides a wire rope inspection system and a positioning method for the wire rope inspection system. The wire rope inspection system includes: an excitation unit that applies magnetic flux to the wire rope to be inspected; a detection unit that detects the magnetic flux of the wire rope to which the excitation unit applies magnetic flux; a loading / unloading unit that is equipped with at least the detection unit and is detachably mounted to a fixing unit near a wire rope; and a positioning unit that positions the loading / unloading unit relative to the fixing unit, such that the detection unit is positioned at a predetermined position relative to the wire rope.