This article describes the Completion design considerations. Reservoir considerations Reservoir drive mechanism may determine whether or not the completion interval will have to be adjusted as gas-oil or water-oil contacts move. A water drive situation may indicate water production problems. Dissolved gas drive will result in pressure depletion and may indicate artificial lift. Dissolved gas … Completion design considerations

This article descirbes the Tubing and Casing Connections Functional and Operational requirements. Functional requirements: – strength -sealing properties, -resistance to damage, corrosion or erosion. Operational requirements: -easy to make-up and break-out in the field (e.g. handling, stabbing, testing, etc); -reusable; Connection types For low pressure wells API 8RD thread connections have been the standard in … Tubing and Casing Connections

The Purpose of the Packer Accessories and tailpipe assembly is described in this article. the ability to isolate the well below the packer; the ability to land off downhole pressure and temperature gauges and redirect flow into the tailpipe higher up; the ability to guide the exit from and retrieval into the tubing string of … Packer Accessories and tailpipe assembly

The designer must ensure that there is critical flow through the choke in order to eliminate the effects of downstream pressure variations on the formation. This is achieved when the FTHP is approximately 1.7 times the downstream flowline pressure. Actuated chokes By its very nature the choke is subjected to very high pressure drops, which … Completion Chokes

When specifying or designing valves, reference should be made to the Operating parameters for that particular well. All valves purchased must at least meet the standards set in API 6A PSL 1, 2, 3 or 4 and in several areas must exceed those standards. Cases where the standards are exceeded are specialised exceptional cases. The … Valve Design

The Christmas tree is the cross-over between the wellhead casing and the flowline. The wellhead is the cross-over between the Christmas tree and the various casings. controls the wellhead pressure and the flow of hydrocarbon enables the well to be shut off in an emergency provides access into the well for well intervention activities. Wellhead/christmas … Christmas Tree (xmas tree) Design

The sand production philosophy for a particular field and production system must be formulated after careful evaluation of a number of interacting factors which range from the well and surface facilities design to the operating procedures for the production system. 1. Sand production philosophy In general, sand influx cannot be tolerated whenever the overall safety … Sand Control