... completion installation and operations australia government europe government subsea system valve wellhead operation knowledge management assembly isolation valve remediation wellhead clamp upstream oil & gas artificial intelligence remotely operated vehicle configuration...

... debris plug inside the wellhead. A pressure study established that the reservoir may have re-charged to 2,200 psi. An alternative pressure controlled well re-entry method was required to safely re-enter, tie-back the well to surface with 16-in. high pressure riser, install BOP while preventing gas from...

... In planning the abandonment, the operator determined that the wellhead had experienced fatigue that compromised its ability to withstand the load from attaching a conventional subsea BOP. In addition, significant soil erosion had taken place around the wellhead. These factors precluded the use...

... Abstract Throughout the 1970s, 1980s and 1990s, many relatively shallow-water wells were drilled at water depths less than 600 ft. (183M) utilizing conventional Semi-submersible Rigs, Subsea wellheads and/or subsea templates. A goodly portion of this drilling was done in the North Sea, in both...

... saline aquifer injection technology subsurface storage caprock reservouir enhanced recovery sequestration co 2 operation aquifer geological formation wellhead injection strategy dissolution injection well process facility formation water upstream oil & gas brine solubility...

... of wear were identified, measured, and monitored for progression using the 3D models. Wellhead repair: A wellhead was damaged when impacted by a falling Blow-out Preventer during recovery operations. A 3D model was constructed of the wellhead, and imported into design software for comparison...

... approaches). Modification of existing wellhead technology for close proximity has proved successful. Access to additional Magnus resources via an otherwise full template has been delivered by this Conductor Sharing Wellhead (CSW) technology. Drilling Equipment casing and cementing orientation...

... Abstract This paper outlines the principles and actual learning from the whole process of designing the inherently safer production Xmas Trees and wellheads and highlights the benefits of early consultation with the regulator during the design phase of a project. The paper demonstrates how...

... Abstract A downhole Splitter wellhead system was successfully introduced and field tested offshore in the Valhall Field, an upper Cretaceous chalk oil reservoir in the south end of the Norwegian sector of the North Sea (Figure 1) operated by Amoco Norway Oil Company on behalf of Amerada Hess...

... of an application seen in some Gulf of Mexico and mud-slide areas, whereby multiple wells are drilled from the same caisson. The main differences are in the caisson size, the proximity of the wellheads, and the fixed platform retrofit application in that the ANP was originally planned and constructed for single...

.... This paper discusses the many innovations, equipment improvements and procedural changes that have led to this steady increase in overall feet per day. reservoir section upstream oil & gas wellhead housing horizontal section engineer stabiliser wellhead thickness assembly steerable motor...

... on the lateral or horizontal bore of the tree. Preliminary evaluations indicate that the use of a surface lateral tree can enhance well intervention procedures, reduce wellhead/tree height, reduce maintenance requirements, and reduce overall risks. metal seal downhole intervention well intervention...

... of Mexico, the Norwegian North Sea and on the UKCS ( ref. 2 and 3 ). In each case the wellheads have been easily accessible, providing simple access to the well or annulus for injection. For subsea wells drilled from a floating exploration drilling vessel, access to the annulus is much more complex...

... to the installation of each production/injection riser, the well is drilled through the drilling riser, or pre-drilled (6 wells) before the arrival of the TLP, using conventional floater drilling techniques. The subsea wellhead assembly is run and landed within a receptacle which is an integral part of the subsea...

... The crossover between the BOP stack and the wellhead housing has an 18-3/4" 10M hub up and a quick makeup mechanical connector down. The connector uses a self-energizing metal gasket seal ring. The crossover is installed beneath the BOP stack and then made up to a test stump for storage...

... for wellhead housing running tools necessitated by the development of wellhead interface systems to overcome the higher static and fatigue loadings generated by harsher environments and deeper water. A brief history of the progression of wellhead designs is also presented in conjunction with their relevant...

... ABSTRACT This paper discusses the design and results of extensive prototype testing of an all metal sealing, weight set, 18-3/4"-15,000 psi subsea wellhead system. This system ( Figure 1 ) has been developed to meet industry requirements of higher pressure and higher temperature in critical...

... Petroleum's DISPS systeni. All the controls, wireline winch, BOP/wellhead and lifting winch are located in a single cabin along with a pressure test pump, surface BOP pump and chemical injection pump. Subsea Wireline Blowout Preventor (BOP). Subsea Wireline Winch and Lubricator. Thruster...

... was of the concentric type and utilised a first of its kind metal to metal sealing annulus valve in the tubing hanger for annulus access/isolation. The completions were landed in wellheads that had been installed during the previous summer as part of the conversion process from three manufacturer's mudline suspension...

... well can be reentered by means of a subsea wellhead conversion or by reengaging tieback risers to a production platform. The use of mudline hangers introduces the requirement to land casing at a location away from the wellhead. As no systems were available capable of landing at two locations...