Drilling standards Workshop - Well Control Equipment.pdf

Drilling standards Workshop Well control equipment

Content

1. Available standards for the Drilling industry 2. Drilling contractors on the market 3 API standards 3. 4. ISO standards 5. Way forward

1 A 1. Available il bl standards t d d ffor th the D Drilling illi industry i d t

1. Mostly American standards (API, NACE, ANSI etc.) 2 Some specific local regulations and standards 2. 3. Operating p g companies p in-house rules,, strict and stringent, g , often based on lessons from blowouts 4. But…only very few International standards

2. Drilling contractors on the market

• Not just American or European ones • An A iincreasing i number b from f eastern t Europe, E Asia A i etc. t • Not all contractors do follow API standards • Hence the need to have internationally recognized standards

3. API standards – Well control equipment Specifications: API 16A - Drill through equipment (2004) API 16C - Choke and Kill lines (2001) API 16D - Control systems for BOP and diverters (2005) API 16F - Marine drilling Riser equipment (2004) API 16R - Marine drilling Riser couplings (1997) API 16 RCD – Rotating control devices (2005)

All these standards concern Design & Manufacturing aspects

3. API standards – Well control equipment Recommended practices: API RP 53 - BOP equipment systems (2004) API RP 59 - Well control operations (2006) API RP 64 - Diverter Di t systems t equipment i t & operations ti (2007) API RP16Q - Design, selection, operation, maintenance of marine riser systems (2001)

These are the only practical documents available to: - install, test & use well control equipment - harmonize practices - contribute effectively to safeguard people safety

3. API standards – Well control equipment Recommended practices – Findings: 1. Blowout reports not enough taken into account 2. Insufficient analysis of classical equipment failures 3. Failure-prone systems not advised against 4. New technologies not given enough consideration 5. Only vague recommendations regarding BOP stack or Diverter arrangements 6 Pro’s and Con’s not sufficiently developed 6.

Hence any possible interpretation is possible Hence the high costs incurred by companies Hence the recurrent disasters

4. ISO standards – Well control equipment

1. So far only 2 standards issued - ISO 13533 (#API 16A) - ISO 13625 (#API 16R) 2. Two standards under preparation (Marine risers) 3. Both API and ISO Drilling well control WG’s on stand by over last l t years, re-instated i t t d in i 2008

5. Way forward

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Th drilling The d illi industry i d t needs d Internationally I t ti ll recognised i d standards t d d

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It requires more than vague recommendations

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It needs to harmonize the companies’ rules under ISO umbrella

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It needs to take into account lessons from disasters and take stock of the latest technological progresses

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It needs to address the present challenges (HP/HT, deepwater drilling, etc)

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It needs to address various configurations (drilling, WO, testing)

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It needs to address well control issues associated with Coiled tubing tubing, snubbing, wireline