Abstract:
Systems and methods of the present disclosure relate to optimizing a tripping velocity profile for pipes in a wellbore. A method for optimizing a tripping velocity profile for a pipe, comprising: determining a static gel strength of a fluid of a wellbore; determining an acceleration curve for the pipe in the wellbore based on wellbore pressure constraints, wherein the wellbore pressure constraints are based in part on the static gel strength of the fluid; determining a deceleration curve for the pipe; and combining the acceleration curve with the deceleration curve to provide the tripping velocity profile for the pipe.
Abstract:
The invention relates to a method performed by a control device (100) for controlling the feeding distance and feeding rate in a rock drilling unit (8). The rock drilling unit (8) comprising: a feeding device (42) for feeding at least one drill rod (7) and a drill bit (3) in an axial direction; a rotating device (44), which is configured to generate a rotational movement of the at least one drill rod (7) and the drill bit (3); and a distance and rate measuring device (60, 62) comprising at least one rotational target wheel (60) configured to be driven by the feeding device (42) and at least one sensor device (62) connected to the control device (100), which sensor device (62) is configured to sensing the rotating motion of the at least one rotational target wheel (60); the method comprising: controlling (s101) the feeding device (42) to move in the axial direction; determining (s102) the feeding distance from a first position and the feeding rate of the feeding device (42) from the rotational motion of the at least one rotational target wheel (60); and controlling (s103) the feeding device (42) depending on the determined feeding distance and feeding rate of the feeding device (42). The invention also relates to a rock drilling unit (8) and a rock drilling rig (5).
Abstract:
A sensor arrangement is described comprising a sensor housing (28), a first sensor (30) sensitive to a downhole parameter and carried by the housing (28), a second sensor (32) sensitive to the same downhole parameter as the first sensor (30) and carried by the housing (28), the second sensor (32) being spaced apart from the first sensor (30) by a fixed distance D in the axial direction of the housing (28), and a control unit (38) operable to monitor the outputs of the first and second sensors (30, 32) to ascertain information relating to the position, movement and/or related information of the housing (28). A related operating method is also described.
Abstract:
Embodiments of the subject technology provide for receiving real-time drilling data comprising different drilling parameters measured during a drilling operation. The subject technology calculates a kick detection parameter based at least in part on the different drilling parameters. The subject technology detects an occurrence of a kick during the drilling operation when the kick detection parameter deviates from a trend formed by previously calculated kick detection parameters. Further, the subject technology activates an alarm during the drilling operation in response to detected occurrence of the kick to facilitate preventing a blowout.
Abstract:
Embodiments include a method for monitoring a fracturing operation that includes positioning a pump (50) at a well site (12) where fracturing operations are being conducted. The method also includes arranging one or more sensors (34, 36) at least one of a pump inlet (52) or a pump outlet (54), the one or more sensors monitoring a flow rate of a slurry. The method includes receiving flow data from the one or more sensors (34, 36). The method also includes determining a pump efficiency, based at least in part on the flow data, is below a threshold. The method further includes adjusting one or more operating parameters of the pump (50).
Abstract:
A method of controlling drill bit trajectory in a subterranean formation includes receiving drilling parameters for operating a specific bottomhole assembly (BHA), constructing, with a computer processor, a directional drill-ahead simulator including a computer model of the BHA and the subterranean formation, calculating axial motion and lateral motion of a drill bit connected to a bottom end of the BHA using formation parameters and drilling parameters, predicting bit walk of the drill bit by accounting for and calculating contact forces and frictional forces between the BHA and a wall of a borehole in the subterranean formation using the computer model of the BHA, and determining an adjusted drill bit traj ectory to account for the predicted bit walk. The method includes determining adjusted drilling parameters for operating the BHA to substantially follow the adjusted drill bit trajectory and operating the BHA according to the adjusted drilling parameters.
Abstract:
Tools are often leased or rented by the owners of the tools. The price paid to rent or lease the tools can be based on a number of factors including the total time in which the downhole tool is in use, the time in possession of the renter, number of times the tool goes in and out of the well, or other factors. To accurately estimate the price owed to the owner of the tool by the renter of the tool, monitoring apparatuses equipped with usage trackers can be utilized to quantitatively measure time usage, possession usage or other basis from which a fee is to be calculated. The quantitative measurements taken by the usage tracker may be used to determine for example, the amount of time a tool is used or possessed to allow fee calculations, or simply to determine usage time for maintenance purposes.
Abstract:
A well advisor system and console for monitoring and managing well drilling and production operations. The system may be accessed through one or more workstations, or other computing devices, which may be located at a well site or remotely. The system is in communication with and receives input from various sensors. It collects real-time sensor data sampled during operations at the well site. The system processes the data, and provides nearly instantaneous numerical and visual feedback through a variety of graphical user interfaces ("GUIs"), which are presented in the form of an operation-specific console. The input and data provides information related to rate of penetration concerning a well being drilled, and present the information for related parameters in real time against a plotted "fairway" of determined maximum and minimum values, with a focus on the safety of the drilling operation.
Abstract:
Various embodiments include apparatus and methods that perform a homogeneous inversion processing to data or signals acquired from a multicomponent induction tool operating in a wellbore. The homogeneous inversion processing can be used to provide a quality check of results from radial one dimensional borehole correction processing. Also, the homogeneous inversion processing may be employed as a dip indicator of conventional array induction logging processing. Additional apparatus, systems, and methods are disclosed.
Abstract:
Estimating and predicting wellbore tortuosity. At least some of the illustrative embodiments are methods including: receiving, by a computer system, an indication of rotational drilling time and slide drilling time for a wellpath; calculating a value indicative of tortuosity for the wellpath based on the indication of rotational drilling time and slide drilling time for the wellpath; determining, by the computer system, that the wellpath exceeds a tortuosity threshold, the determining based on the value indicative of tortuosity; and changing a drilling parameter regarding the wellpath responsive to determining that the wellpath exceeds the tortuosity threshold.