Blogs
- Shares Lessons Learnt
- It is better to put string weight below test cup for testing BOPs, due to different area between ‘cup’ and BOP seal area which may push test cup assembly out of hole. When we have to run test plug/ cup before running scraper BHA, use scraper BHA as weight below test plug/ cup; ...
- Shares Selective Injector Workover Difficulties
- 1. Wash sand, handle returns, no Desander, Sand Trap, most have to pump to production flowline; 2. Control hole loss, take risk of blow out; 3. Set barriers with Slickline, ...
- Shares Check List of Unset Packer
- 1. Line up casing valve to choke manifold; 2. Open casing valve, bleed off any pressure through poor-boy; 3. Run in hole engage tubing hanger retrieving tool; 4. ...
- Shares Well Barriers
- Barrier － A reliable and verifiable pressure-control method used to prevent a well from flowing. Verify and test barriers example 1 • PXX plug – Test in direction of fl ...
- Shares HORIZONTAL WELL
- HORIZONTAL WELL 1. Increased exposure to the reservoir 2. Connect laterally discontinuous features 3. Changing the geometry of drainage 4. Extend field appraisal horizontally Productivity Index = Hydrocarbon flow rate / p ...
- Shares SAFETY
- 2011-05-27 20:07 Feedback for D This time I will talk with him about nothing but Safety. I have to prove that I really consider about that. Like backreaming (3000 psi without decrease pump rate), Running liner (6 joints one time on cat walk, no hole protection, no elevator ...
- Shares Stuck Pipe
- Causes: 1. Differential Sticky 1) May happen during well control situation, weight up mud not too much, keep monitoring casing pressure ; consider Driller’s Method first. Even take co ...
- Shares Logistic Game Rule
- Contact the right person for asking materials. If Drilling Supervisor needs something, just contact with logistic coordinator himself, not with contractors. Otherwise, logistic coordinator will have to do many more confirmation to conduct the materials needs. Same as Drilling Supervisor contact ...
- Shares Basic Casing Design Information
- Casing Design: Least expensive with maximum loading requirements (Burst, Collapse, Tension Load, Biaxial Changes) Surface Casing BURST DESIGN Maximum burst load: The lightest possible influx fluid (dry gas) blows out and replaces drilling fluid within cas ...
- Shares Basic Shale Gas Information
- Generated in basin The low permeability of the shale greatly inhibits the gas from migrating to more permeable reservoir rocks. Recovery ratio: 5% ~ 60% Without horizontal drilling and hydraulic fracturing, shale gas production would not be economically feasible. Environmental Issues: Require ...
