A Practical Method To Minimize Stuck Pipe Integrating Surface and MWD Measurements

Belaskie, J.P.; McCann, Dermot; Leshikar, J.F.

doi:10.2118/27494-ms

Cited by 12 publications

(1 citation statement)

References 5 publications

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“…Moreover, the occurrence of a pipe sticking is one of the most common wellbore instability concerns observed while drilling operations, accounting for 36% of all drilling difficulties [8,9]. Pipe sticking happens around 50% of the time while tripping, 10% when bottom drilling, and 20% when operating the pipe at a connection and reaming [10]. Consequently, the worst fears of the drillers are NPT, coupled with the rising expense of rig time.…”

Section: -Introductionmentioning

confidence: 99%

Review of the Mechanisms for Preventing, Diagnosing, and Treatment of Pipe Sticking in Drilling Operations

Issa,

A. Alrazzaq,

Mukhtar

2023

IJCPE

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Stuck pipe is a prevalent and costly issue in drilling operations, with the potential to cost the petroleum industry billions of dollars annually. To reduce the likelihood of this issue, efforts have been made to identify the causes of stuck pipes. The main mechanisms that cause stuck pipes include drill cutting of the formation, inappropriate hole-cleaning, wellbore instability, and differential sticking forces, particularly in highly deviated wellbores. The significant consequences of a stuck pipe include an increase in well costs and Non-Productive Time (NPT), and in the worst-case scenario, the loss of a wellbore section and down-hole equipment, or the need to sidetrack, plug, or abandon the well. This paper provides a comprehensive review of the challenges associated with pipe sticking during drilling operations. The mechanisms of pipe sticking, analysis of differential sticking factors, guiding principles to minimize differential sticking, diagnosis approaches, and different treatment methods are discussed. This paper can serve as a guide for any problem involving stuck pipes in the petroleum industry.

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Section: -Introductionmentioning

confidence: 99%

Review of the Mechanisms for Preventing, Diagnosing, and Treatment of Pipe Sticking in Drilling Operations

Issa,

A. Alrazzaq,

Mukhtar

2023

IJCPE

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Support Vector Machine Model: A New Methodology for Stuck Pipe Prediction

2013

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Stuck pipe is a common worldwide drilling problem, resulting significant increases in non-productive time and overall well cost. Many oil and gas reservoirs are mature and are becoming increasingly depleted of hydrocarbons which make stuck pipe more severe risks. This is due to the fact that decreasing pore pressure increases the chance of stuck pipe. Minimizing the risks of stuck pipe while drilling has been the goal of many operators recently. This paper describes a robust support vector regression (SVR) methodology that offers superior performance for stuck pipe prediction either mechanically or differentially using available drilling parameters. A new model is developed using drilling parameters such as measured depth, mud weight, plastic viscosity, yield point, gel strengths, PH and solid percent from different wells. The method incorporates hybrid least square support vector regression and Coupled Simulated Annealing (CSA) optimization technique (LSSVM-CSA) for efficient tuning of SVR hyper parameters. The algorithm is applied to classify the stuck types, i.e., differential stuck or mechanical stuck. Performance analysis shows that LSSVM classifier has high accuracy. Using intelligent system would help drilling industry to reduce Non-Productive Time (NPT) during operation in complex zones.

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Pipe Sticking Prediction Using LWD Real-Time Measurements

Hess

2016

IADC/SPE Drilling Conference and Exhibition

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In addition to formation evaluation, logging-while-drilling (LWD) measurements can also be used as a real-time solution to issues that arise during drilling. For example, LWD measurements can be interpreted to help determine if increasing mud weight is useful or if the rate of penetration (ROP) must be slowed. What if measurements made with LWD tools can help predict whether or not a drill string will become stuck while drilling? This paper describes a model that was created to predict situations with high risk of the tool becoming stuck so they can be addressed during the planning and execution phases. The model learns, or builds on each job experience, to improve future decisions. Most experienced individuals involved in the drilling process understand the various ways that a drill string can become stuck and factors that contribute to it becoming stuck. Many variables are attributed to a bottom hole assembly (BHA) becoming stuck during drilling operations. This paper explains the variables that were used in the model and why they were used. Some measurable variables are wellbore characteristics, BHA characteristics, downhole pressure and temperature, drilling practices and mud properties. These variables were gathered from 42 wells drilled on the Gulf of Mexico (GOM) shelf. More specifically, the information was gathered from end-of-run reports, annular pressure (AP) logs, LWD databases and surveys. After the model was created, the model was tested against seven additional GOM shelf wells. The model predicted correctly that in three of the seven wells, the drill string would be permanently stuck. In another three of the seven, the drill string was temporarily stuck while the model claimed it would be permanently stuck. In the final well, the model predicted that the drill string should be stuck, while it was not; however, the client made decisions while drilling the section which indicated that they were fearful of getting stuck. If it can be shown that there is a risk of the drill string becoming stuck in a well, preventative as well as after-the-fact measures can be used to adjust the mud system and other drilling parameters. Additionally, fishing services can be prepared early or even moved to location earlier to cut down on non-productive time (NPT). A model such as this provides an indication of the need to try preventive measures to mitigate the situation before the problem occurs, or at a minimum provides additional information so that the best course of action can be taken.

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A Practical Method To Minimize Stuck Pipe Integrating Surface and MWD Measurements

Cited by 12 publications

References 5 publications

Review of the Mechanisms for Preventing, Diagnosing, and Treatment of Pipe Sticking in Drilling Operations

Review of the Mechanisms for Preventing, Diagnosing, and Treatment of Pipe Sticking in Drilling Operations

Support Vector Machine Model: A New Methodology for Stuck Pipe Prediction

Pipe Sticking Prediction Using LWD Real-Time Measurements

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