Reliable Deepwater Structural Casing Installation Using Controlled Jetting

Beck, R.D.; Jackson, Colin; Hamilton, Thomas

doi:10.2118/22542-ms

Cited by 18 publications

(3 citation statements)

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“…The normal and tangential pressure is related to the corresponding displacement of the contact surface. The constitutive model of the Goodman contact element model can be written by Equation (3).…”

Section: Goodman Contact Element Modelmentioning

confidence: 99%

“…At present, many scholars have carried out research on the bearing capacity of the conductor. The static mechanical behavior has been studied to calculate the lateral bearing characteristics in soft clay formation [3][4][5][6][7][8]. With the gradual increase in the water depth, the dynamic load on the drilling riser becomes more and more complex.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation Analysis on the Lateral Dynamic Characteristics of Deepwater Conductor Considering the Pile-Soil Contact Models

Wang

Gao

Meng

2022

JMSE

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It is important to accurately assess the interaction between the conductor and the soil to ensure the stability of the subsea wellheads during deepwater drilling. In this paper, numerical simulations were carried out to study the lateral dynamic bearing capacity of the conductor considering different contact models between the conductor and the soil. In particular, the contact surface model and contact element model were selected to study the dynamic behavior of pile–soil under a transverse periodic load. On this basis, the influence of the bending moment, the wellhead stick-up, the outer diameter (O.D.) of the conductor and the wall thickness (W.T.) of the conductor, as well as the physical parameters of the soil on the dynamic bearing capacity are discussed in detail. Analysis results show that the lateral deformation, deflection angle and von Mises stress calculated by the contact element model are greater than those calculated by the contact surface model. The maximum value of the lateral deformation and bending moment of the conductor decrease with the O.D. and W.T. of the conductor, and the cohesion and internal friction angle of the soil. However, the maximum value of the lateral deformation and bending moment of the conductor increase with the wellhead stick-up. Both the vertical force and the soil density have a negligible effect on the lateral behavior of the conductor. This study has reference value for the design and stability assessment of subsea wellheads.

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Section: Goodman Contact Element Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Simulation Analysis on the Lateral Dynamic Characteristics of Deepwater Conductor Considering the Pile-Soil Contact Models

Wang

Gao

Meng

2022

JMSE

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“…In the deepwater drilling process, conductor jetting technique (Beck, Jackson, and Hamilton 1991) is often used to drill seabed surface layers, which not only avoids surface conductor cementing time but also spends less time in making one trip run, because second spudding proceeds once a conductor is run in hole. Currently, the studies on surface conductor jetting technique focus on conductor stability based on ANSYS software (Wei et al 2015) and…”

Section: Introductionmentioning

confidence: 99%

Method of predicting soil mechanical parameters in shallow formation while jetting process in deep-water drilling

Yang

Meng

et al. 2016

Marine Georesources & Geotechnology

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The mechanical properties of shallow soils in deep water play an important role in drilling design and construction as well as later oil and gas development. Since it is difficult to collect soil samples from layers deeper than 10 meters below the sea floor, the acquisition of shallow soil mechanics, based on the variation of drilling parameters in the deepwater drilling process, is not only economical but also reliable. In this paper, we analyze the variation of subsea soil properties based on the variation of deepwater jet-drilling construction parameters, calculate the lateral friction Downloaded by [Temple University Libraries] at 17:14 01 June 2016 2 resistance of conductor by use of WOB and displacement parameters in the jetting process, and determine the drilled formation's shear strength and internal friction angle in consideration of restored friction resistance. In order to verify the accuracy of the prediction-while-drilling model on seabed shallow soil mechanics, indoor unit and field simulation experiments were separately conducted. Moreover, the calculations from field application examples indicate that the prediction-while-drilling of deepwater seabed shallow soil mechanics achieves high conformity with the local practice results, which also indicates that this method could effectively guide field construction operations.

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Technological Process of the Composite Casing Drilling Technology in Deep-Water Riserless well Construction

Wang

Long

et al. 2022

Chem Technol Fuels Oils

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Reliable Deepwater Structural Casing Installation Using Controlled Jetting

Cited by 18 publications

References 0 publications

Numerical Simulation Analysis on the Lateral Dynamic Characteristics of Deepwater Conductor Considering the Pile-Soil Contact Models

Numerical Simulation Analysis on the Lateral Dynamic Characteristics of Deepwater Conductor Considering the Pile-Soil Contact Models

Method of predicting soil mechanical parameters in shallow formation while jetting process in deep-water drilling

Technological Process of the Composite Casing Drilling Technology in Deep-Water Riserless well Construction

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