Integrated wellbore cleanout systems: Improving efficiency and reducing risk

Oilfield Review

Volumn 17, Issue 2, 2005, Pages 4-13

  Ali, Azhar ^a   Blount, Curtis G ^b   Hill, Stephen ^c   Pokhriyal, Jai ^c   Weng, Xiaowei ^c   Loveland, M J ^b   Mokhtar, Shahril ^c   Pedota, Jessica ^c   Rødsjø, Mads ^d   Rolovic, Radovan ^c   Zhou, Wei ^c  

^a PETRONAS CARIGALI SDN BHD   (Malaysia)

^b Phillips Research Center 224GB   (United States)

^c BP Norge AS ^*

^d BP EXPLORATION   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

COILED TUBING OPERATIONS; DEBRIS REMOVAL; FLUID CLEANOUT SYSTEMS; INTEGRATED WELLBORES;

COMPUTER HARDWARE; COMPUTER SOFTWARE; OIL WELL PRODUCTION; RISK ASSESSMENT; SAND;

OFFSHORE BOREHOLES;

EID: 25444449877     PISSN: 09231730     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Review

References (11)

1. Adapted from an article by Shelia Esthay, Jennings Daily News, http://www.dnr.state.la.us/cons/first-well.ssi (accessed March 2, 2005).
2. Olien RM: "The Oil Field Shooters," http://www.texancultures. utsa.edu/hiddenhistory/pages1/OilenOilShooter.htm (accessed March 2, 2005).
3. Rolovic R, Weng X, Hill S, Robinson G, Zemlak K and Najafov J: "An Integrated System Approach to Wellbore Cleanouts with Coiled Tubing," paper SPE 89333, presented at the SPE/ICoTA Coiled Tubing Conference and Exhibition, The Woodlands, Texas, USA, March 23-24, 2004.
4. For more on coiled tubing: Afghoul AC, Amaravadi S, Boumali A, Calmeto JCN, Lima J, Lovell J, Tinkham S, Zemlak K and Staal T: "Coiled Tubing: The Next Generation, Oilfield Review 16, no. 1 (Spring 2004): 38-57.
5. Rolovic et al, reference 3.
6. Equivalent circulating density is the effective density exerted by a circulating fluid against the formation that takes into account the pressure drop in the annulus above the point being considered.
7. Rolovic et al, reference 3.
8. Loveland MJ and Pedota J: "Case History: Efficient Coiled-Tubing Sand Cleanout in a High-Angle Well Using a Complete Integrated Cleaning System," paper SPE 94179, presented at the SPE/ICoTA Coiled Tubing Conference and Exhibition, The Woodlands, Texas, April 12-13, 2005.
9. Slick-water refers to a water-base fluid with additives designed to reduce friction pressure. Slick-diesel refers to an oil-base fluid with friction-reducing additives.
10. A gas hydrate is a solid crystalline structure consisting of water with gas molecules in an ice-like cage configuration. Water molecules form a lattice structure into which many types of gas molecules can fit. Most gases, except hydrogen and helium, can form hydrates.
11. Zhou W, Amaravadi S and Roedsjoe M: "Valhall Field Coiled Tubing Post-Frac Proppant Cleanout Process Optimization," paper SPE 94131, presented at the SPE/ICoTA Coiled Tubing Conference and Exhibition, The Woodlands, Texas, April 12-13, 2005.