Rheological Characterization of Shale – Mud Interactions
In a bid to identify a best drilling fluid for a problematic oil field in the Niger Delta region, rheological tests were carried out on three mud samples; BW1, BW3 and BW4. The results affirm that the load bearing capacity of XP-07 formulated as BW3 and BW4 in this investigation is excellent and fall within the same range or even better than those of REF Mud with a more than 90% drilling success history in Niger Delta. The rheological changes of XP-07 with increase in temperature and “assimilated” microscopic shale particles are very negligible and smaller than those of REF mud. XP-07 has been strongly recommended for all drilling operations in the problematic field. It has been re-emphasised as part of our recommendations that new guidelines for the close monitoring of drilling fluids supplied by mud companies and those actually used in the field (during drilling) be put in place.
Key words: Shale – mud interactions; Rheological characterization; Niger delta
 Akpokoje, E. (1994). Drilling Performance and Shale Problems. Technology Improvement Project. Geo. lab. SPDC-W.
 Darley, H.C.H., & George, R.G. (1988). Composition and Properties of Drilling and Completion Fluids (5th Ed., pp.189). Gulf Professional Publishing.
 Emofurieta, W.O. (1991). The Development of Oil Well Drilling Mud and Bleaching Clay from Nigerian Source Rocks (pp. 44). Terra Miners Company Nig. Ltd.
 Emofurieta, W.O. (2001). The Characteristics of the Nigerian Bentonite. Geociecaias, Rev. Univ. Aveiro., 15, 39 – 47.
 Emofurieta, W.O., & Odeh, A.O. (2007).Swelling Characteristics of Shales and Their Dispersion in Drilling Muds. Journal of Engineering for Development, 8, 194 – 206.
 Emofurieta, W.O., & Odeh, A.O. (2010a). Swelling Characteristics of Shales and Their Dispersion in Drilling Muds II. Energy Sources, 33, 12 -26.
 Emofurieta, W.O., & Odeh, A.O. (2010b). Swelling Characteristics of Shales and Their Dispersion in Drilling Muds III. Petroleum Science and Technology, 28, 1535-1543.
 Falode, O.A., Ehinola, O.A., & Nebeife, P.C. (2008). Evaluation of Local Bentonitic Clay as Oil Well Drilling Fluids in Nigeria. Applied Clay Science, 39(1-2), 19-27.
 Jackson, N.L. (1957). Frequency Distribution of Clay Minerals in Major Great Soil Groups as Related to Factors of Soil Formation. Clay Minerals, 5, 279 - 288.
 Maron, P. (1969). Stratigraphical Aspects of the Niger Delta. Journal Min. Geol., 4, 1-12.
 Murat, R.C. (1970). Stratigraphy and Paleogeography of the Cretaceous and Lower Tertiary in Southern Nigeria. African Geology.
 Omole, O, Malomo, S., & Akande, S. (1989). The Suitability of Nigerian Black Soil Clays as Drilling Mud Clays, Nature and Technical Properties. Appl. Clay Sc., 4, 357-372.
 R & D, NNPC. (1990). The Mineralogy, Geochemical and Rheological Properties of Some Suspected Bentonite Deposits in Nigeria. Spec. Report.
 SPDC REPORT. (1999). Paleontological and Palynologica Analysis of Five Shale Outcrop Samples. Executed by Mosunmolu Ltd. Lagos in Assoc. with Global Geotechnical and & Environmental Systems Inc. U.S.A.
 Weber, K.J. (1971). Sedimentological Aspects of Oil Fields in the Niger Delta. Geol. Mijnbau, 50(3) , 559-576.
 Weber, K.J., & Daukoru, E.M. (1975). Petroleum Geological Aspects of the Niger Delta. Journ. Min. Geol., 12, 9-22.
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