Study on the Factors Affecting the Annulus Pressure of Riserless Mud Recovery System

Volume 4, Issue 4, August 2019     |     PP. 62-82      |     PDF (1112 K)    |     Pub. Date: December 17, 2019
DOI:    218 Downloads     6204 Views  

Author(s)

Xin Li, State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China
Jie Zhang, State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China
Meng Zhang, Fifth Drilling Branch, China Bohai Drilling Engineering Company Limited, Hejian, China
Peigang Wang, State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China
Gezhen Mao, State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China
Xuefeng Sun, State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China

Abstract
The precise control of the annulus pressure involves the problems of drilling safety and drilling cost, which have always been the focus of drilling engineering. In this paper, combined with the characteristics of the riserless mud recovery (RMR) system, the calculation method of equivalent circulating density (ECD) and annulus pressure of RMR system is proposed. According to the characteristics of the heat exchange of the RMR system, a mathematical model of the thermal field in the annulus is established. The variation law of thermal field in the annulus of some well sections was simulated by computational fluid dynamics (CFD) software. Comparing the CFD analysis results with the calculation results of mathematical models, the feasibility of the mathematical model is verified, and the temperature variation curve in the annulus is obtained. Based on the drilling data of a vertical well in the South China Sea, this paper analyzes the effects of seawater depth, equivalent static density (ESD) of drilling fluid, cuttings concentration and discharge capacity on the annulus pressure and ECD of the RMR system.

Keywords
RMR, annulus pressure, ECD, thermal field, influencing factors

Cite this paper
Xin Li, Jie Zhang, Meng Zhang, Peigang Wang, Gezhen Mao, Xuefeng Sun, Study on the Factors Affecting the Annulus Pressure of Riserless Mud Recovery System , SCIREA Journal of Energy. Volume 4, Issue 4, August 2019 | PP. 62-82.

References

[ 1 ] Myers, G. (2008) Ultra-deepwater Riserless Mud Circulation with Dual Gradient Drilling, Scientific Drilling. 6, 6, 76-89.
[ 2 ] Smith, D., Tarr, B., Winters, W., et al. (2010) Deepwater Riserless Mud Return System for Dual Gradient Tophole Drilling, SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition.
[ 3 ] Claudey, E., Fossli, B., Elahifar, B., et al. (2018) Experience Using Managed Pressure Cementing Techniques with Riserless Mud Recovery and Controlled Mud Level in the Barents Sea, SPE Norway One Day Seminar.
[ 4 ] Hannegan, D., Stave, R. (2006) The time has come to develop riserless mud recovery technology's deepwater capabilities, Drilling Contractor.
[ 5 ] Claudey, E., Maubach, C., Ferrari, S., et al. (2016) Deepest Deployment of Riserless Dual Gradient Mud Recovery System in Drilling Operation in the North Sea, SPE Bergen One Day Seminar.
[ 6 ] Liu, J. (2010) Hydraulics Calculation and Suction Module Design for Riserless Mud Recovery Drilling System, China University of Petroleum.
[ 7 ] Ramzy, R. (2013) Safe and Clean Marine Drilling with Implementation of “Riserless Mud Recovery Technology–RMR”, SPE Arctic and Extreme Environments Conference.
[ 8 ] Stave R., Nordas P., Fossli B. (2014) Safe and Efficient Tophole Drilling using Riserless Mud Recovery and Managed Pressure Cementing, Offshore Technology Conference Asia.
[ 9 ] Cohen, J., Kleppe, J., Grns, T., et al. (2010) Gulf of Mexico's First Application of Riserless Mud Recovery for Top-hole Drilling - A Case Study, Offshore Technology Conference.
[ 10 ] Carter, G., Bland, B., Pinckard, M. (2005) Riserless Drilling-Applications of an Innovative Drilling Method and Tools, Offshore Technology Conference.
[ 11 ] Stave, R., Farestveit, R., Hoyland, S., et al. (2005) Demonstration and Qualification of a Riserless Dual Gradient System, Offshore Technology Conference.
[ 12 ] Brown, J., Urvant, V., Thorogood, J., et al. (2007) Deployment of a Riserless Mud-Recovery System Offshore Sakhalin Island, SPE/IADC Drilling Conference.
[ 13 ] Froyen, J., Rolland, N., Rommetveit, R., et al. (2006) Riserless Mud Recovery (RMR) System Evaluation for Top Hole Drilling with Shallow Gas, International Studies Quarterly. 50, 3, 509-537.
[ 14 ] Wang, G., Chen, G., Yin, Z. (2013) MRL Lectotype and Parametric Optimization for Deepwater Riserless Drilling, China Petroleum Machinery. 41, 2, 66-69.
[ 15 ] Alford, S., Asko, A., Stave, R., et al. (2005) Riserless Mud Recovery System and High Performance Inhibitive Fluid Successfully Stabilize West Azeri Surface Formation, Offshore Mediterranean Conference and Exhibition.
[ 16 ] Stave, R. (2012) Implementation of Dual Gradient Drilling Impact on Well Construction, SPE Bergen One Day Seminar.
[ 17 ] Liu, Y., Fan, H., Wen, Z., et al. (2018) Stability Analysis of Drilling Pipe and Subsea Wellhead for Riserless Drilling in Deepwater, International Ocean and Polar Engineering Conference.
[ 18 ] Gill, C., Fuller, G., Faul R. (2005) Deepwater Cementing Best Practices for the Riserless Section, AADE National Technical Conference and Exhibition.
[ 19 ] Stave, R., Fossli, B., Endresen, C., et al. (2014) Exploration Drilling with Riserless Dual Gradient Technology in Arctic Waters, Arctic Technology Conference.
[ 20 ] Sun, T., Gao, D., Zhang, H. (2012) Determination of the Critical Displacement in Ultra-deepwater Drilling, Energy Sources. 34, 6, 485-491.
[ 21 ] Hinton, A., Kvalvaag, E., Jongejan, A., et al. (2009) BP Egypt Uses RMR on a Jack-up to Solve a Top Hole Drilling Problem, SPE/IADC Drilling Conference and Exhibition.
[ 22 ] Scanlon, T., Medeiros, F. (2012) Enhanced Drilling Solution for Tophole Sections on Jack-up Wells with Environmentally Improved Method and Dual Gradient Drilling Techniques, SPE Latin America and Caribbean Petroleum Engineering Conference.
[ 23 ] Hinton, A. (2009) A New Chapter in MPD: Subsea Pumping, IADC/SPE Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition.
[ 24 ] Scanlon, T. (2011) Environmentally Improved Method of Drilling Top-Hole Sections Offshore Brasil Using Dual-Gradient Drilling Techniques for the First Time in Brasil, OTC Brasil.
[ 25 ] Gao, D., Sun, T., Zhang, H., et al. (2013) Displacement and Hydraulic Calculation of the SMD System in Ultra-deepwater Condition, Liquid Fuels Technology. 31, 11, 1196-1205.
[ 26 ] Vernon, R., Buchan, S., Halland, M., et al. (2008) Riserless Mud Recovery Solves Top-Hole Drilling Problems, SPE/IADC Drilling Conference and Exhibition.
[ 27 ] Okafor, U. (2008) Evaluation of Liquid Lift Approach to Dual Gradient Drilling, Texas A & M University.
[ 28 ] Godhavn, J., Hauge, E., Molde, D., et al. (2014) ECD Management Toolbox for Floating Drilling Units, Offshore Technology Conference.
[ 29 ] Yin, Z., Chen, G., Xu, L., et al. (2006) Optimization of Casing Program of Deepwater Well by Dual Gradient Drilling, Natural Gas Industry. 31, 12, 112-114.
[ 30 ] Scott, P., Ledbetter, S., Chester, R., et al. (2006) Pushing the Limits of Riserless Deepwater Drilling, AADE Drilling Fluids Conference.
[ 31 ] Alford, S., Campbell, M., Aston, M., et al. (2005) Silicate-Based Fluid, Mud Recovery System Combine to Stabilize Surface Formations of Azeri Wells, SPE/IADC Drilling Conference.
[ 32 ] Rajabi, M., Nergaard, A., Hole, O., et al. (2009) A New Riserless Method Enable Us to Apply Managed Pressure Drilling in Deepwater Environments, IADC/SPE Middle East Drilling Conference and Exhibition.
[ 33 ] Zheng, J. (2017) Simulation and Calculation of Key Parameters in Dual Gradient Drilling, Southwest Petroleum University.
[ 34 ] Ge, R. (2013) Study on Riserless Mud-Lift Drilling System Design and Control Unit, China University of Petroleum.
[ 35 ] Gao, B. (2009) Flowfield Simulation and Performance Assessment for the Subsea Mudlift Disc Pump, China University of Petroleum.
[ 36 ] Wang, Z., Hao, X., Wang, X., et al. (2010) Numerical Simulation on Deepwater Drilling Wellbore Temperature and Pressure Distribution, Liquid Fuels Technology. 4828, 9, 911-919.
[ 37 ] Wang, X., Sun, B., Luo, Y., et al. (2018) Transient Temperature and Pressure Calculation Model of a Wellbore for Dual Gradient Drilling, Journal of Hydrodynamics. 30, 5, 1-14.
[ 38 ] Erge, O., Ozbayoglu, E., Miska, S., et al. (2016) Equivalent Circulating Density Modeling of Yield Power Law Fluids Validated with CFD Approach, Journal of Petroleum Science & Engineering. 140, 16-27.
[ 39 ] Akbari, B., Miska, S., Yu, M., et al. (2014) Experimental Investigations of the Effect of the Pore Pressure on the MSE and Drilling Strength of a PDC Bit, SPE Western North American and Rocky Mountain Joint Meeting.
[ 40 ] Ameen, S., Kinik, K., Gumus, G. (2015) Dynamic Calibration of the Empirical Pore Pressure Estimation Methods Using MPD Data, Med.unhas.ac.id.
[ 41 ] Chen, Y., Yu, M., Miska, S., et al. (2014) A Novel Approach in Locating Single Loss Zone during Deepwater Drilling with Distributed Temperature Measurement, SPE Deepwater Drilling and Completions Conference.
[ 42 ] Daniel, M. (2016) Use of Riserless Mud Recovery for Protection of Cold Water Corals While Drilling in Norwegian Sea, SPE International Conference and Exhibition on Health, Safety, Security, Environment, and Social Responsibility.
[ 43 ] Li, J., Zhang, H,. Li, X., et al. (2018) Dual-Gradient Drilling of Deepwater in South China Sea: What is the Well’s Maximum Measured Depth and How to Improve It, SPE/IADC Managed Pressure Drilling & Underbalanced Operations Conference & Exhibition.
[ 44 ] Lin, T., Wei, C., Zhang, Q., et al. (2016) Calculation of Equivalent Circulating Density and Solids Concentration in the Annular Space when Reaming the Hole in Deepwater Drilling, Chemistry & Technology of Fuels & Oils. 52, 1, 70-75.
[ 45 ] Zhao, S., Yan, J., Li, H., et al. (2009). A Prediction Model for Drilling Fluid ECD in High Temperature Deep Wells, Drilling Fluid & Completion Fluid. 26, 2, 20-34.
[ 46 ] Wu, J. (2007). Hydraulics Calculation of Dual Gradient Drilling, China University of Petroleum.
[ 47 ] Erge, O., Ozbayoglu, E., Miska, S., et al. (2016) Equivalent Circulating Density Modeling of Yield Power Law Fluids Validated with CFD Approach, Journal of Petroleum Science & Engineering. 140, 16-27.
[ 48 ] Kinik, K., Wojtanowicz, A., Gumus, F. (2014) Temperature-Induced Uncertainty of the Effective Fracture Pressures: Assessment and Control, SPE Deepwater Drilling and Completions Conference.