Abstract:
Systems and methods for determining the optimum number of platforms to be used in a hydrocarbon field development and their position. The systems and methods determine the least valuable platform(s) and eliminate them from use in the hydrocarbon field development.
Abstract:
Systems and methods for modeling wellbore trajectories using curvature bridging functions. The systems and methods use a clothoid spiral as a bridging curve in the transition zones to reduce tubular stresses/failures in the design of multilateral well paths and extended reach well paths.
Abstract:
Systems and methods for enhancing the resolution of a seismic data image displayed on a face of a sampling probe. The enhanced image represents a maximum resolution of at least a portion of the seismic data image. The seismic data image is enhanced by extracting seismic data that are perpendicular to a reflection surface that is closest to a center of the sampling probe and positioning the extracted seismic data in a visible planar face of the sampling probe.
Abstract:
Systems and methods for utilizing finite difference simulation results to compute streamline trajectories, which may be used to analyze the results with other streamline techniques.
Abstract:
Systems and methods for imaging a volume-of-interest, which may include an object or point of interest to be analyzed in a display of three-dimensional data.
Abstract:
Systems and methods for imaging waveform volumes. An image of the waveform volume may be drawn on a display device as a two-dimensional image or a three-dimensional image of a sampling probe and redrawn in real-time at interactive rates using a graphics accelerator or a graphics card. The image of the waveform volume may also include seismic-data traces that are color-filled according to texture coordinates for pixels on the display device that intersect the waveform volume.
Abstract:
An improved coiled tubing pulling tool and methods of using the pulling tool for pulling a well tool from a well bore, relocating a well tool in the well bore and performing other similar operations. The pulling tool is basically comprised of an elongated inner mandrel having an axial fluid flow passageway therethrough adapted to be connected to a length of coiled tubing, a latching mandrel connected at the end of the inner mandrel having a fluid flow passageway therethrough and having a fishing nose thereon, a tubular piston member slidably extending over the inner mandrel which is movable by fluid pressure in a direction away from the fishing nose, a first spring disposed between the inner mandrel and the piston member for urging the piston member in a direction towards the fishing nose, a latching device disposed on the latching mandrel connected to the piston member before latching the pulling tool to a fishing neck of a well tool and a releasing system for unlatching the pulling tool when sufficient fluid pressure is applied to the pulling tool to overcome the spring and move the piston member away from the fishing nose.
Abstract:
To test coiled tubing, at least one test is performed on a coiled tubing that has been used, such as in an oil or gas well. Performing such test includes obtaining a specific output data event (e.g., a nondestructive evaluation test readout) for the used coiled tubing. The specific output data event is compared with a predetermined sequence of output data events (e.g., a collection of data defining a "lifeline" for the coiled tubing) for determining where the sequence and the specific output data event correspond. A coiled tubing status indication is generated in response to where the specific output data event corresponds with the sequence as a measure of a point in the useful life of the used coiled tubing.
Abstract:
An apparatus for downhole injection and mixing of fluids into a cement slurry. The apparatus includes embodiments which either carry a fluid to the proper injection point in a wellbore or maintain it at the proper injection point until activated. In a first embodiment, the apparatus is characterized as a cementing plug having a fluid holding chamber therein. When the plug is pumped downwardly in the wellbore, the fluid in the chamber is flowed out of the chamber and mixed with the cement slurry by a venturi effect. In a second embodiment, the apparatus is characterized by a casing portion having a fluid holding chamber therein. A solenoid valve controls communication of the chamber with the well annulus, and fluid flow through the well annulus causes the fluid in the chamber to be flowed outwardly by a venturi effect. The second embodiment includes a casing shoe disposed below the fluid holding chamber. A third embodiment is disclosed which is substantially the same as the second embodiment except that it utilizes a casing cementing valve rather than a casing shoe. Methods of utilizing the apparatus to cement a well casing and mix a fluid, such as an accelerant, with the cement slurry are also disclosed.
Abstract:
The present invention relates to tools and methods for stabilizing incompetent or otherwise unstable subterranean zones or formations penetrated by a well bore during drilling. The methods basically comprise drilling the well bore through an unstable subterranean zone or formation when it is encountered, pumping a fluid through a well stabilization tool while moving the tool through the portion of the well bore in the unstable zone or formation whereby fluid jets formed by the well stabilization tool enlarge the diameter of the well bore by fluid jet erosion, pumping a hardenable cementitious material through the well stabilization tool while moving the tool through the enlarged portion of the well bore whereby the enlarged portion is filled with the hardenable cementitious material, allowing the cementitious material to harden and then drilling the well bore through the hardened cementitious material.