A Simplified and Highly Effective Method to Identify Influx and Losses During Managed Pressure Drilling Without the use of a Coriolis Flow Meter

Reitsma, Don

doi:10.2523/130312-ms

Cited by 11 publications

(6 citation statements)

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“…Reitsma (2010) considers the stand pipe and choke pressures for detection of influx and loss, but does not isolate the position. He argues that it is beneficial to have fault diagnosis without a coriolis flow meter downstream the choke, due to intolerance to gas flow, limited space, and vibrations offshore.…”

Section: Introductionmentioning

confidence: 99%

A Framework for Fault Diagnosis in Managed Pressure Drilling Applied to Flow-Loop Data

Willersrud¹,

Imsland²,

Pavlov³

et al. 2013

IFAC Proceedings Volumes

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Data from a medium-scale horizontal flow loop test facility is used to test fault diagnosis in managed pressure drilling. The faults are downhole incidents such as formation influx, fluid loss, drillstring washout, pack-off, and plugging of the drill bit, which are important to detect and handle in order to avoid downtime and possibly dangerous situations. In this paper a fault diagnosis scheme based on an adaptive observer and the generalized likelihood ratio test is applied on the experimental data. The different types of faults are detected and their location are isolated using friction parameter estimates. Results indicate that the method can in most cases identify the type of fault, whereas the location is sometimes more uncertain.

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Section: Introductionmentioning

confidence: 99%

A Framework for Fault Diagnosis in Managed Pressure Drilling Applied to Flow-Loop Data

Willersrud¹,

Imsland²,

Pavlov³

et al. 2013

IFAC Proceedings Volumes

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show abstract

“…A method to detect the kick and loss, as well as other wellbore anomalies, using the standpipe pressure (SPP) and annulus discharge pressure (ADP) was proposed [16]. This method also allows for detection of anomalies with a shut-in well, which is not possible with a conventional flow meter.…”

Section: Detection Of Wellbore Influx and Loss Through Pressuresmentioning

confidence: 99%

“…Plugging and vibration do not affect it as this kick detection method relies on pressure measurements as opposed to flow meters. This system is also proposed for managed pressure drilling operations [16,17].…”

Section: Detection Of Wellbore Influx and Loss Through Pressuresmentioning

confidence: 99%

Monitoring of down-hole parameters for early kick detection

Nayeem

Venkatesan

Khan

2016

Journal of Loss Prevention in the Process Industries

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The sudden hydrocarbon influx from the formation into the wellbore poses a serious risk to the safety of the well. This sudden influx is termed a kick, which, if not controlled, may lead to a blowout. Therefore, early detection of the kick is crucial to minimize the possibility of a blowout occurrence. There is a high probability of delay in kick detection, apart from other issues when using a kick detection system that is exclusively based on surface monitoring. Down-hole monitoring techniques have a potential to detect a kick at its early stage. Down-hole monitoring could be particularly beneficial when the influx occurs as a result of a lost circulation scenario. In a lost circulation scenario, when the down-hole pressure becomes lower than the formation pore pressure, the formation fluid may starts to enter the wellbore. The lost volume of the drilling fluid is compensated by the formation fluid flowing into the well bore, making it difficult to identify the kick based on pit (mud tank) volume observations at the surface.This experimental study investigates the occurrence of a kick based on relative changes in the mass flow rate, pressure, density, and the conductivity of the fluid in the down-hole.Moreover, the parameters that are most sensitive to formation fluid are identified and a methodology to detect a kick without false alarms is reported.Pressure transmitter, the Coriolis flow and density meter, and the conductivity sensor are employed to observe the deteriorating well conditions in the down-hole. These observations are used to assess the occurrence of a kick and associated blowout risk. Monitoring of multiple down-hole parameters has a potential to improve the accuracy of interpretation related to kick occurrence, reduces the number of false alarms, and provides a broad picture iii of down-hole conditions. The down-hole monitoring techniques have a potential to reduce the kick detection period.A down-hole assembly of the laboratory scale drilling rig model and kick injection setup were designed, measuring instruments were acquired, a frame was fabricated, and the experimental set-up was assembled and tested. This set-up has the necessary features to This thesis consists of three main parts. The first part gives the general introduction, motivation, outline of the thesis, and a brief description of influx: its causes, various leading

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“…While flow and volume parameters are frequently used in kick detection efforts, these data readings can be subject to much variation due to the quality of the sensors, or as seen in the Macondo blowout, simultaneous operations. Another method in early kick detection avoids the dependence on analyzing flow and utilizes real-time pressure readings at surface (Reitsma, 2010, Reitsma 2011, Mills et al, 2012. Primarily tested with dynamic annular pressure control managed pressure drilling (MPD), the use of standpipe and annular discharge pressures and their relationship has proven to be an effective method in kick detection, applicable to conventional drilling methods as well (Reitsma, 2010 Typically, as previously mentioned, flow and volume data of drilling fluid is utilized to verify influx.…”

Section: Drilling Event Detectionmentioning

confidence: 99%

“…Another method in early kick detection avoids the dependence on analyzing flow and utilizes real-time pressure readings at surface (Reitsma, 2010, Reitsma 2011, Mills et al, 2012. Primarily tested with dynamic annular pressure control managed pressure drilling (MPD), the use of standpipe and annular discharge pressures and their relationship has proven to be an effective method in kick detection, applicable to conventional drilling methods as well (Reitsma, 2010 Typically, as previously mentioned, flow and volume data of drilling fluid is utilized to verify influx. However, it has been proven that using sensor data from annular discharge pressure provides comparable results in detecting influxes with significant lower cost (Reitsma, 2011).…”

Section: Drilling Event Detectionmentioning

confidence: 99%

Improved Regulatory Oversight Using Real-Time Data Monitoring Technologies in the Wake of Macondo

Carter

Oort

Barendrecht

2014

Day 1 Wed, September 10, 2014

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As shown by the Macondo blowout, an uncontrolled deepwater well control event can result in loss of life, damage to the environment, and significant damage to company and industry reputation. Consistent adherence to safety regulations is a recurring issue in deepwater well construction. The two federal entities responsible for offshore U.S. safety regulation are the Department of the Interior's Bureau of Safety and Environmental Enforcement (BSEE) and the U.S. Coast Guard (USCG). The regulatory authority of these two bodies spans well planning, drilling, completions, emergency evacuation, environmental response, etc. The wide range of rules these agencies are responsible for cannot be comprehensively verified with the current infrequency of on-site inspections. Offshore regulation and operational safety could be greatly improved through continuous remote real-time data monitoring. Many government agencies have adopted monitoring regimes dependent on real-time data for improved oversight (e.g. NASA Mission Control, USGS Earthquake Early Warning System, USCG Vessel Traffic Services, etc.). Appropriately, real-time data monitoring was either re-developed or introduced in the wake of catastrophic events within those sectors (e.g. Challenger, tsunamis, Exxon Valdez, etc.). Over recent decades, oil and gas operators have developed Real-Time Operations Centers (RTOCs) for continuous, pro-active operations oversight and remote interaction with on-site personnel. Commonly seen as collaborative hubs, RTOCs provide a central conduit for shared knowledge, experience, and improved decision-making, thus optimizing performance, reducing operational risk, and improving safety. In particular, RTOC's have been useful in identifying and mitigating potential well construction incidents that could have resulted in significant non-productive time and trouble cost. In this paper, a comprehensive set of recommendations is made to BSEE and USCG to expand and improve their regulatory oversight activities through remote real-time data monitoring and application of emerging real-time technologies that aid in data acquisition and performance optimization for improved safety. Data sets and tools necessary for regulators to effectively monitor and regulate deepwater operations (Gulf of Mexico, Arctic, etc.) on a continuous basis are identified. Data from actual GOM field cases are used to support the recommendations. In addition, the case is made for the regulator to build a collaborative foundation with deepwater operators, academia and other stakeholders, through the employment of state-of-the-art knowledge management tools and techniques. This will allow the regulator to do "more with less", in order to address the fast pace of activity expansion and technology adoption in deepwater well construction, while maximizing corporate knowledge and retention. Knowledge management provides a connection that can foster a truly collaborative relationship between regulators, industry, and non-governmental organizations with a common goal of safety assurance and without confusing lines of authority or responsibility. This solves several key issues for regulators with respect to having access to experience and technical know-how, by leveraging industry experts who would not normally have been inaccessible. On implementation of the proposed real-time and knowledge management technologies and workflows, a phased approach is advocated to be carried out under the auspices of the Center for Offshore Safety (COS) and/or the Offshore Energy Safety Institute (OESI). Academia can play an important role, particularly in early phases of the program, as a neutral playing ground where tools, techniques and workflows can be tried and tested before wider adoption takes place.

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A Simplified and Highly Effective Method to Identify Influx and Losses During Managed Pressure Drilling Without the use of a Coriolis Flow Meter

Cited by 11 publications

References 0 publications

A Framework for Fault Diagnosis in Managed Pressure Drilling Applied to Flow-Loop Data

A Framework for Fault Diagnosis in Managed Pressure Drilling Applied to Flow-Loop Data

Monitoring of down-hole parameters for early kick detection

Improved Regulatory Oversight Using Real-Time Data Monitoring Technologies in the Wake of Macondo

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