Binning During Non-Rotation Drilling in a Wellbore
Inactive Publication Date: 2018-10-04
NABORS DRILLING TECH USA INC
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Benefits of technology
The present patent is about improving geosteering control during non-rotation drilling, such as slide drilling, by using azimuthal imaging to map sides of wellbores and direct geosteering control. The technical effect of this patent is to enable better control and directional drilling during slide drilling scenarios, which is currently not possible using traditional methods. The patent describes systems, devices, and methods for using azimuthal measurements to map the sides of wellbores and direct drilling control, which can improve the accuracy and efficiency of drilling.
Problems solved by technology
As a result, the detectors remain in a fixed position relative to the borehole and thus cannot cover all the bins of the radial plot corresponding to the circumference of the borehole.
Because of this, data is not collected from all bins during slide drilling and the image at these times (constructed from the data) is lost, unavailable during slide drilling (non-rotating sections) of the wellbore.
Method used
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[0018]It is to be understood that the following disclosure provides many different embodiments, or examples, for implementing different features of various embodiments. Specific examples of components and arrangements are described below to simplify the present disclosure. These are merely examples and are not intended to be limiting. In addition, the present disclosure may repeat reference numerals and / or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and / or configurations discussed. Moreover, the formation of a first feature over or on a second feature in the description that follows may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features may be formed interposing the first and second features, such that the first and second features may not be in direct contac...
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A drilling rig apparatus is disclosed for improving slide drilling control by enabling use of azimuthal measurements while slide drilling to characterize and direct geosteering control. A bottom hole assembly controller receives RPM and gamma sensor data and transitions from a rotary, vertical binning mode to a slide drilling, horizontal binning mode when the RPM falls below a threshold. In the horizontal mode, the BHA controller tracks the hemisphere that the gamma sensors are in. As data from a gamma sensor is received from the upper hemisphere, it is associated with a top bin in a radial plot, and data from a gamma sensor in the lower hemisphere is associated with a bottom bin. The BHA controller estimates one or more bin values for bins falling between the top and bottom bins. The measured and estimated bin data is transmitted to the surface for image log creation and geosteering control.
Description
TECHNICAL FIELD[0001]The present disclosure is directed to systems, devices, and methods for improving geosteering control during non-rotation drilling, such as during slide drilling. More specifically, the present disclosure is directed to improving slide drilling control by enabling use of azimuthal measurements while slide drilling to characterize and direct geosteering control.BACKGROUND OF THE DISCLOSURE[0002]Subterranean “sliding” drilling operations typically involve rotating a drill bit on a downhole motor at a remote end of a non-rotating drill pipe string. Drilling fluid forced through the drill pipe rotates the motor and bit. The assembly is directed or “steered” from a drill path in any number of directions, allowing the operator to guide the wellbore to desired underground locations. For example, to recover an underground hydrocarbon deposit, the operator may drill a vertical well to a point above the reservoir and then steer the wellbore to drill a deflected or “direct...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E21B44/00E21B47/024E21B7/06E21B47/12
CPCE21B44/00E21B47/124E21B7/06E21B47/024
InventorVIENS, CHRISTOPHER
OwnerNABORS DRILLING TECH USA INC