Casing setting depths found in Drilling Programmes fall into two categories: 1. Those where the casing is set at a specific marker (ie., formation above reservoir). 2. Those where the casing is set at a convenient point in the total well path. The casing setting depths in 1. are absolute and the hole shall be … Casing Setting Depths

The following procedure should be used when making up a weight set tie-back packer with a 7in liner. 1. PICK UP weight set tie-back packer c/w setting sleeve and PBR 9.5/8in, 43.5-53.5 lbs/ft x 7in 23-32 lbs/ft L-80. 2. PICK UP liner running tool, type 2RH with PBR seal assembly 4.1/2 IF box up (installation … Weight Set Tie-Back Packer Make-Up

The following procedure should be used when cleaning out the PBR for setting a weight set tie-back packer with a 7in liner. 1. RIH combined lower, upper tie-back polish mills and casing scraper. 2. Position of packing element relative to top PBR when set must be established to ensurethat scraper will clean setting area if … Tie-Back Packers – PBR Clean Out and Packer Setting

The following is a procedure example for running and setting a weight set tie-back packer with a 7in liner. 1. Suspend tie-back packer in slips. Make up the running tool on a joint of drillpipe and stab into assembly. Rotate tool to engage lugs, then slack off and rotate the tool to the left 6-7 … Running and Setting Tie-Back Packer

A string of casing can be run at a later date after a liner has been installed and joined to it as long as the liner hanger assembly top (or weight set packer top, if it has been run) has been provided with a setting sleeve with tie-back extension (standard machined or PBR). Reasons to … Liner Tie-Back String

A casing patch can be required in the following situations: – the casing has to be set high before the casing hanger has landed, (well control requirements may dictate that an emergency slip cannot be set) – a leak has been found in a casing string. The following guidelines shall be used in the preparation … Casing Patches

After running the liner, the liner lap shall be tested to a value based on the FIT at the previous casing shoe. If the test is unsuccessful  then the liner lap must be inflow tested, but if successful the draw down shall be confirmed. Inflow Testing Liner laps shall be inflow tested if any of … Liner Lap Testing – Inflow Testing

The test pressure and the justification for this pressure shall be clearly indicated in the testing programme. The casing string shall be tested to the lowest value as dictated by the following pressure: the casing/liner design pressure or 75% of the casing/liner burst the wellhead design pressure the working rating of the BOP cement head … Casing and Liner Pressure Testing

Preparation of casing before running serves two purposes. 1. ensure that the pipe body and threads are adequately protected from possible damage when being moved to the drill floor. 2. ensure that handling of the casing on the drill floor is kept to a minimum. These goals can be achieved by use of the following … Preparation for Running Casing

To ensure that the casing is run efficiently to the correct depth and in the desired condition, specific equipment and techniques should be considered in the design phase. 1 Rig hoisting capacity The casing designer should be aware of the hoist capacity of the rig which is to drill the well. Where deep, heavy strings … Running and Testing Casing