... ABSTRACT A deepwater dry tree cylindrical floating platform, can achieve multiple functions such as drilling, completion, production, and workover, and can reduce the economical cost of deepwater oil and gas development which has broad application prospects. In order to promote the development...

... ABSTRACT The surface conductor is the first layer of casing installed in deep water drilling, and it is subject to complex forces due to the long-term coupled effects of the drilling platform and the casing column. To improve the bearing capacity and stability of deep water conductors, a new...

... of the joints is significantly exacerbated by the platform offset effect. The research presented in this paper provides valuable guidance and reference for the safe operation of conductor joints. INTRODUCTION Over the past decade, deepwater oil and gas exploration and development has significantly emerged...

...-Raphson method. This approach effectively determines platform offset boundaries under varying surface current velocities. The results indicate that the angles of the upper flex joint (UFJ) and lower flex joint (LFJ) are the primary constraints on the connected drilling operation window, causing platform...

...). Offshore wind energy is related to the Oil and Gas industry (O&G) as it provides its decarbonization through two main processes: the clean energy provided to platforms which can reduce fossil fuels, and carbon credits. Floating Offshore Wind Turbines (FOWTs) have been going through extensive research...

..., leading to underestimation of platform motion and hydrodynamic loading. This study incorporates a VIV-induced lift force model into the Morison equation framework within OpenFAST to assess its impact on the dynamic behavior of a spar-type FOWT under steady current conditions. Two simulation cases...

... ABSTRACT Usually, the tower is typically modeled as a rigid body during the design processes, neglecting the flexibility of the tower. In this paper, a numerical model of a 16MW Tension Leg Platform (TLP) floating offshore wind turbines (FOWT) is established to study the effect of tower...

... ABSTRACT TLP-FOWT (tension-leg platform-floating wind turbine) has drawn more attention due to its better hydrodynamic properties with small motion amplitudes in hash sea state. China offshore oil engineering corporation (COOEC) proposed a submerged TLP FOWT with vertical steel wire tendons...

... ABSTRACT Semi-submersible floating wind turbines serving in deep and distant waters face complex marine environments. So monitoring and analyzing their environmental and motion responses are of great significance to ensure the safe operation and maintenance of the platform and the subsequent...

... ABSTRACT The complexity and unpredictability of the offshore environment frequently induces severe swaying that can damage wind turbine platforms and equipment. The ability of an OC4 DeepCwind semi-submersible wind turbine platform equipped with gyroscopic stabilizers to resist pitching...

... ABSTRACT This paper presents a comparative study of different surrogate models, i.e. the Kriging and artificial neural network (ANN), in the optimization design of a floating offshore wind turbine (FOWT) platform. In order to solve the contradiction between the hydrodynamic performance of FOWT...

...). Floating wind turbines have broad application prospects and have developed four main types, such as semi-submersible, tension leg platform, barge and Spar. Spar-type wind turbine has unconditional stability, low global motions, and small water plane area with reduced wave loading on hull and mooring...

... to the prediction of platform motions. This paper presents a numerical framework for predicting the tension forces of mooring lines of an FOWT by leveraging artificial neural networks. The well-validated in-house code naoe-FOAM-SJTU developed for marine applications at Shanghai Jiao Tong University based...

... ABSTRACT As marine resource development progressively extends to deeper and more remote waters, investigating the dynamic response of deepwater platforms with taut mooring systems is crucial for engineering applications. This study investigates the impact of floating platform elastic...

... ABSTRACT In this study, a hydroelastic model test of the floating tourism platform "Heart of Ocean" was conducted with a scale ratio of 1:80. This model was a back-bone model consisting of seven rigid modules. Initially, the design method for the model is presented, followed by the equivalent...

... propose providing real-ship navigation data and a real-time testbed. This study focuses on developing a data collection system and testbed based on a digital twin concept as a platform for research and development. The system is designed to capture data nearly equivalent to the information obtained...

... turbine foundations (such as monopile, gravity, and jacket) in nearshore areas also rise. This has made floating foundations a major research focus (Hong, McMorland, Zhang, Collu, and Halse, 2024). While semi-submersible platforms are advantageous for deployment in deep waters and harsh marine...

... offshore oil and gas platforms. However, for most semi-submersible offshore oil and gas platforms, researchers typically neglect the effects of second- and higher-order sum-frequency wave loads. In contrast, semi-submersible offshore wind turbines feature a flexible tower structure that is sensitive...

... ABSTRACT Structural control has been used for decades to achieve load reduction and motion control on floating bodies, and the tuned liquid column damper (TLCD) was proposed and applied on floating wind turbine platform as an effective method of structure control. Based on a 9MW wind turbine...

... ABSTRACT Rogue waves are extreme oceanic phenomena that occurs with an enlarged wave crest and concentrated wave energy, posing significant threats to offshore structures. This study investigates the dynamic responses of a moored semi-submersible floating offshore wind turbine (FOWT) platform...