Data-driven indicators for the detection and prediction of stuck-pipe events in oil&gas drilling operations

2021 ◽  
Vol 7 ◽  
pp. 100043
Author(s):  
Aida Brankovic ◽  
Matteo Matteucci ◽  
Marcello Restelli ◽  
Luca Ferrarini ◽  
Luigi Piroddi ◽  
...  
Keyword(s):  
Data Driven ◽  
Gas Drilling ◽  
Drilling Operations ◽  
Oil Gas

Research on HSE Risk Assessment and Control in Oil-Gas Drilling Operations

2014 ◽  
Vol 919-921 ◽  
pp. 500-506
Author(s):  
Fei Li ◽  
Guang Zhang
Keyword(s):  
Risk Assessment ◽  
Evaluation Method ◽  
Oil And Gas ◽  
Assessment System ◽  
Control Measures ◽  
Fuzzy Evaluation ◽  
Oil And Gas Exploration ◽  
Gas Drilling ◽  
Drilling Operations ◽  
Oil Gas

As the leading of oil and gas exploration and development, oil-gas drilling operations with high investment, high technology, and other industries interchange and perennial wild characteristics, there are various HSE risks during operation. Constructing HSE risk assessment system of oil-gas drilling operations, using AHP to construct indicators were analyzed and compared, and calculate the index weight. Then build fuzzy evaluation matrix based on expert evaluation method, get fuzzy evaluation result is "high risk". Finally, from four aspects (people, object, environment, and management) proposed HSE control measures.

A Cyber-Physical System for Semi-Autonomous Oil&Gas Drilling Operations

2019 ◽  
Author(s):  
Yazan Mualla ◽  
Amro Najjar ◽  
Olivier Boissier ◽  
Stephane Galland ◽  
Igor Tchappi Haman ◽  
...  
Keyword(s):  
Physical System ◽  
Cyber Physical System ◽  
Gas Drilling ◽  
Drilling Operations ◽  
Oil Gas

Elasto-Plastic Analysis on Wellbore Stability under the Condition of Permeation

2010 ◽  
Vol 156-157 ◽  
pp. 1292-1296
Author(s):  
Jian Bing Sang ◽  
Su Fang Xing ◽  
Chen Hua Lu ◽  
Wen Jia Wang ◽  
Bo Liu
Keyword(s):  
Porous Medium ◽  
Failure Criterion ◽  
Oil And Gas ◽  
Pressure Effect ◽  
Wellbore Stability ◽  
Gas Drilling ◽  
Plastic Analysis ◽  
Key Factor ◽  
Drilling Operations ◽  
Distribution Of Stress

Maintaining the wellbore stability is a key factor for oil and gas drilling operations. In this paper, sock is regarded porous medium. Crevice pressure, effect of permeation and SD effect are considered. The elastic and plastic stresses around the wellbore sock were analysed according to MVM failure criterion. Distribution of stress and displacement was obtained, which can provide theory reference for the wellbore stability.

scholarly journals CFD Method for Predicting Annular Pressure Losses and Cuttings Concentration in Eccentric Horizontal Wells

2014 ◽  
Vol 2014 ◽  
pp. 1-16 ◽  
Author(s):  
Titus N. Ofei ◽  
Sonny Irawan ◽  
William Pao
Keyword(s):  
Experimental Data ◽  
Oil And Gas ◽  
Current Model ◽  
Fluid Velocity ◽  
Pipe Diameter ◽  
Pressure Losses ◽  
Gas Drilling ◽  
Drilling Parameters ◽  
Drilling Operations ◽  
Oil And Gas Drilling

In oil and gas drilling operations, predictions of pressure losses and cuttings concentration in the annulus are very complex due to the combination of interacting drilling parameters. Past studies have proposed many empirical correlations to estimate pressure losses and cuttings concentration. However, these developed correlations are limited to their experimental data range and setup, and hence, they cannot be applicable to all cases. CFD methods have the advantages of handling complex multiphase flow problems, as well as, an unlimited number of physical and operational conditions. The present study employs the inhomogeneous (Eulerian-Eulerian) model to simulate a two-phase solid-fluid flow and predict pressure losses and cuttings concentration in eccentric horizontal annuli as a function of varying drilling parameters: fluid velocity, diameter ratio (ratio of inner pipe diameter to outer pipe diameter), inner pipe rotation speed, and fluid type. Experimental data for pressure losses and cuttings concentration from previous literature compared very well with simulation data, confirming the validity of the current model. The study shows how reliable CFD methods can replicate the actual, yet complex oil and gas drilling operations.

Sign in / Sign up

Export Citation Format

Share Document