HPHT wells are extremely expensive (and often carry high risk) and therefore must reach their objectives without cost over-run or incident (such as worn or corroded casing, excessive lost circulation or an underground blowout for example).
In order to drill HPHT wells successfully many engineering considerations must be assessed, such as the de-rating casing due to high temperatures, partial pressures, hydrogen sulphide stress corrosion cracking, the thermal effects on drilling fluids, high mud weights and the effect on drilling equipment etc. which are quite different to those considerations used on standard wells.
This course covers those engineering aspects operations in detail, which will maximise the success of the drilling phase of the HPHT well to be drilled.
To maximise learning, a wide range of HPHT Case Histories are also presented with delegates working through certain situations, as teams, to identify and solve HPHT engineering design problems.
Presentation material is through the use of Manuals, PowerPoints, Case Histories, videos and digital film.
Duration: 5 Days
Skill Level: Intermediate
This course covers the following topics:
- The Key Characteristics & Challenges of HPHT Wells
- Industry Definitions
- Outline Rig Considerations
- Geology & Geophysics Considerations
- The Ideal HPHT Well Design Process
- Wellheads for HPHT Wells
- Casing Considerations & “WellCat”
- Casing Loadings
- HPHT Cementing & Resin Cements
- HPHT Drilling Fluids – Design & Effect of Pressure & Temperature
- Outline Testing & Completion Considerations
- DWOP & Technical Limit
- Service Provision
- HPHT Case Histories
- Teamwork Exercise
- Q & A / Open Forum
- Personnel who are involved with HPHT Well Design / Planning / Drilling Programme Writing & Programme Sign-off e.g. Drilling Engineers / Senior Drilling Engineers / Drilling Superintendents / Drilling Managers
- Service Company Personnel / Well Reviewers / Examiners
Prerequisite: Previous (standard) well design experience.