Development of High Efficient Anti-sloughing Drilling Fluid and Its Application in Chunhua Block

LIU Yunpeng

Abstract


Chunhua Block of Shengli Oilfield is one block where shale caving formation, borehole instability, well click, trip sticking, drill pipe blocking and sticking during completion logging and other downhole complex issues were encountered during the drilling process. The paper was based on slow down pressure transmission, filtrate invasion and strong inhibition of cooperation anti-sloughing basic principle. Through optimization and compatibility of the major additives, a new-type drilling fluid is characterized by good rheological properties, filtration loss, lubricity, stability and strong inhibition. The new drilling fluid has been applied in 5 wells for block test. The result showed that all wells gained a satisfactory anti-sloughing effect. The enlargement ratio of well bore diameter was reduced efficiently. The drilling time was saved. And the ratio of successful logging by one time was 100%.
Key words: Drilling fluid; Borehole stability; Shale strata; Cooperation anti-sloughing; Chunhua Block

Keywords


Drilling fluid; Borehole stability; Shale strata; Cooperation anti-sloughing; Chunhua Block

Full Text:

PDF

References


[1] Krueger, R.F. (1988). An Overview of Formation Damage and Well Productivity Inarifield Operations. SPE 17479.

[2] Caenn, R., & Chillingar, V. G. (1996). Drilling Fluids: State of the Art. Journal of Petroleum Science and Engineering, 14(3), 221-230.

[3] Schlemmer, R. (2002). Membrane Eficiency in Shale-An Empirical Evaluation of Drilling Fluid Chemistries and Implication for Fluid Design. JADC/SPE 74557.

[4] Cook, J. M., Goldsimth, G., et al. (1993). Mud/Shale Interaction. Model Wellbore Stabilty using X-Ray Tomography. SPE/IADC Drilling Conference, 22-25 February 1993, Amsterdam, Netherlands.

[5] Simpson, J. P., Walker, T. O., & Jiang, G. Z. (1994). Environmentaly Acceptable Water Based Mud Can Prevent Shale Hydration and Maintain Borehole Stability. IADC/SPE 27496.

[6] Zhang, Y. (1998). Investigation of Formation Damage Control of Methy-Ucoside Fluids. J. P. R., 11(2), 23-25.

[7] Headley, J. A., Walker, T. O., & Jenkins, R. M. (1995). Environmentally Acceptable Water Based Driling Fluid to Oil Based Muds for Shale Stabilization. IADC/SPE 2940l4.

[8] Bland, R. G., & Smith, G. L. (1995). Low Salinity Polyglycol Water-Based Drilling Fluids as Alternatives to Oil-Based Muds. SPE/IADC 29378.

[9] Mody, F. K., & Hale, A. H. (1993). Borehole-Stability Model to Couple the Mechanics and Chemistry of Drilling-Fluid/Shale Interactions. Journal of Petroleum Technology, 45(11), 1093-1101.

[10] Downs, J. D., et al. (1993). TAME: A New Concept in Water-Based Drilling Fluids for Shales. Offshore Europe, 7-10 September 1993, Aberdeen, United Kingdom.

[11] Thaemlitz, C. J., Patel, A. D., Coffin, G., et al. (1999). New Environmentally Safe High-Temperature Water-Based Drilling-Fluid System. SPE Drilling Completion, 14(3), 185-189.

[12] Kirsner, J., Miller, J., Bracken, J., et al. (2006). U.S. Patent No. 7,008,907. Washington, DC: U. S. Patent and Trademark Office.




DOI: http://dx.doi.org/10.3968%2Fj.aped.1925543820130602.1831

Refbacks

  • There are currently no refbacks.


Reminder

How to do online submission to another Journal?

If you have already registered in Journal A, then how can you submit another article to Journal B? It takes two steps to make it happen:

1. Register yourself in Journal B as an Author

Find the journal you want to submit to in CATEGORIES, click on “VIEW JOURNAL”, “Online Submissions”, “GO TO LOGIN” and “Edit My Profile”. Check “Author” on the “Edit Profile” page, then “Save”.

2. Submission

Go to “User Home”, and click on “Author” under the name of Journal B. You may start a New Submission by clicking on “CLICK HERE”.

We only use three mailboxes as follows to deal with issues about paper acceptance, payment and submission of electronic versions of our journals to databases:
caooc@hotmail.com; aped@cscanada.net; aped@cscanada.org

Copyright © 2010 Canadian Research & Development Centre of Sciences and Cultures
Address: 730, 77e AV, Laval, Quebec, H7V 4A8, Canada

Telephone: 1-514-558 6138
Http://www.cscanada.net
Http://www.cscanada.org
E-mail:office@cscanada.net  office@cscanada.org