An integrated solution to the development of the Bao Vang field in the South China Sea (Vietnam)
Gazprom International has commissioned FMC Technologies to develop a conceptual technical design for the development of the Bao Vang field in Block 112 in the South China Sea (Vietnamese shelf), which was discovered in 2007. The design is based on the company’s standard and proven solutions which take into account the unique features of the field and the area where the work will be carried out. Equipment identical to that included in the conceptual design is already in use in the development of the Kirinskoye gas and condensate field on the Sakhalin shelf.
FMC Technologies has all the resources required for the design of offshore fields with subsea completion, including initial data analyses, a choice of technical solutions and methods and the capacity to perform all the stages of the work: from the preliminary design to the drafting of pre-design, design and operations paperwork.
FMC Technologies has extensive experience in designing field infrastructure, drilling and completion systems, base plate and manifold systems and control systems, and in addressing issues relating to uninterrupted flows, the use of subsea hydrocarbon treatment systems, downhole treatment systems and well repair work. The company’s experience enables it to deploy optimal integrated,technical solutions which reduce total costs and increase the return on investments.
FMC Technologies has suggested two potential scenarios for developing the Bao Vang field:
Fig. 1. Option for developing the Bao Vang field through hook-up to an offshore drilling and processing platform.
- a combined option whereby output is conventionally treated on a fixed offshore platform. Under this scenario, it is expected that some of the production wells will be drilled directly from the platform at which the primary processing and compressing equipment will also be located (Fig.1). Additional subsea wells will be hooked up to the platform using infield pipelines and umbilicals;
- the direct supply of extracted natural gas from the subsea production system wells to onshore facilities. Under this scenario, total output from subsea wells will be sent directly to the onshore processing facilities (Fig. 2). Later, when formation pressures begin to fall, a subsea compressor station can be built.
Fig. 2. The direct supply of natural gas from the Bao Vang field to the shore.
In addition, two different subsea equipment concepts are being considered:
- modular solution, whereby the wells and the manifold are located on a single supporting base. This design also features an integrated protective structure against falling objects and fishing activity;
- cluster solution, whereby the output from stand-alone subsea wells is supplied to a stand-alone manifold module. The wells may be connected using spools or infield pipelines depending on the distance to the gathering manifold.
FMC Technologies’ proposals are currently being considered by Gazprom International, including in regard to their environmental safety and the mitigation of their impact on the living environment and traditional industries of the local population.