... mitigation with dynamic kill capabilities, allowing for fewer casing strings, by deepening the structural/conductor casing, and also potentially deepening the high pressure wellhead housing (HPWH) surface string Riserless drilling is a common offshore and deepwater practice with the operational and economic...

...Background In September 2004 an offshore platform was toppled by a subsea mudslide that occurred during Hurricane Ivan. The platform was toppled and drug off station approximately 700 feet with the well bay conductors buried under sediment. This resulted in constant release of hydrocarbons...

... installation and operations offshore technology conference hpht houston hpht development application information conductor hanger complex reservoir operation texas drilling operation mudline chevron wellhead anchor preload intervention Introduction The Anchor field was discovered...

... Abstract The execution of six different jetting operations in Santos pre-salt basin serves as field proof for methodology in conductor casing design and brings up new problems that need to be addressed for complete success both in the jetting operation and in the construction of the second...

... assesses soil characterization data from piezocone tests (CPTu) to statistically describe some mechanical parameters used for conductor and surface casing design. Random variables associated with the material and geometrical properties of tubulars are also considered, based on tubular manufacturing data...

... upstream oil & gas knowledge management assessment loading australia government main column wandoo reliability-driven assessment substructure scenario resistance sub-sea system probability return period consideration foundation normal distribution conductor compliance...

... and suffered fatal injury, after the fall. Abstract In 2022, a Hydraulic Workover Unit (HWU), operating in Gulf of Mexico, toppled while being erected on a caisson. Photographs taken on site suggest that conductor casing lost stability, while submitted to weight of the HWU, combined with environmental...

... For wet cables- there the barrier is omitted, the conductor is assumed to constitute the limiting component for both inter-array and export cables. Improved fatigue tolerance thereof can potentially facilitate more cost- efficient floater- and termination solutions. Fatigue of the conductors...

... is the estimated conductor axial displacement; u e and u p denote the axial displacement of the conductor under purely elastic and purely plastic (i.e., the conductor approaches failing axially), respectively; P c is the axial load on the conductor; A is the cross-section area of the conductor; E...

.... Unlike conventional jackets, some conductor guides/sleeves are modified like jacket legs, however, conductors are kept axially free to move through the sleeves. The mudmats are modified to include in the overall load-bearing capacity of the structure. The lower deck (41m × 25m) will accommodate all...

... Abstract This paper describes the design, construction and operation of a test rig for jetted conductors in soft clays. The rig was designed to produce repeatable tests under controlled conditions to evaluate the influence of operational jetting procedures on the conductor performance just...

... deviate template structure slow varying displacement upstream oil & gas conductor equinor wellhead lift artificial intelligence wellhead system camera kit accelerometer-based monitoring computer vision well growth monitoring offshore technology conference prototype Introduction...

... Abstract Jetting is a widely applied technique for conductor installation, which allows great time savings in comparison to conventional drilling and cementing of the conductor. According to Kan et al. (2018 ), the key parameters for a successful jetting operation are: pump rate, ratio of bit...

... Abstract As a general practice in the oil and gas industry, the well foundation, composed by the conductor and the surface casing, is designed with a strict tolerance regarding cement shortfall on the surface casing. However, in a pre-salt scenario, in order to reduce the costs of well...

... and turn the matured-challenging fields into more economically attractive projects – low overall development cost and maximizing the recovery. sand/solids control upstream oil & gas conductor sand control cost catalogue platform operation statistical approach well planning sand...

... extensions with new well slots to the topsides and to add new conductor guides to the jacket. When the jacket has insufficient framing strengths and/or pile capacities, local reinforcements of the overstressed jacket members, connections and/or addition of new piles are required. The underwater reinforcement...

...; 8 main piles 54"ø; 6 torsion piles 72"ø; 58 conductors 22"ø & 26"ø. Figure 2 shows the overall Lena configuration and major components [ 1 , 2 ]. Figure 3 provides an isometric view of the Lena tower structure framing. Figure 4 illustrates the tower structural support system...

... This paper proposes a method of securing well conductors in shallow water open sea without installing a structural jacket. This will allow well completion at surface (above water) for subsequent easy production operation without installing mudline suspension system. Stability of the conductors...

... corrosion as smaller conductors which leads to a significant cost reduction. With the above technical improvements alone or combined, and a better DEH system than that was qualified in year 2000 is now available to the market. operator riser cable efficiency deh system conductor materials...

... Piezocone Penetration Test (CPTu) is widely used in offshore projects to obtain soil parameters, such as the undrained shear strength. Due to depth limitations to perform this test, it is common to obtain data until around 40m when the conductor installation process would require at least...