New features enhance directional drill bitsOffshore (Conroe, Tex.). 1989, Vol 49, Num 2, pp 29-33, issn 0030-0608Article

Bit whirl: a new theory of PDC bit failureBRETT, J. F; WARREN, T. M; BEHR, S. M et al.Annual Technical Conference and Exhibition. 1989, pp 521-536Conference Paper

Case history: PC analysis of bit records enhances drilling operations in Southern AlabamaTHOMAS, J. M.Drilling Conference. 1989, pp 153-159Conference Paper

Field application of PHPA mudsKADASTER, A. G; GUILD, G. J; HANNI, G. L et al.Annual Technical Conference and Exhibition. 1989, pp 129-142Conference Paper

Optimising oil muds for offshore drilling and lower environmental impactJACHNIK, R. P; MARSHALL, D. S.Annual Offshore Technology Conference. 21. 1989, pp 203-212Conference Paper

Performance testing of jar acceleratorsKYLLINGSTAD, A; SLORDAL, L. H.Annual Technical Conference and Exhibition. 1989, pp 389-399Conference Paper

Trägerschonung ― Eine aktuelle Anforderung an Bohrspülungen = Prévention de l'endommagement de la roche-magasin, impératif actuel imposé à l'injection dans les sondages = Damage prevention of reservoir rock, actual requirement imposed by borehole injectionALBERTSEN, M.Erdöl, Erdgas, Kohle. 1988, Vol 104, Num 1, issn 0179-3187, 25Article

Champing at the drill bitOilman (The). 1988, Num 3, pp 33-34, issn 0305-2281Article

Metal seals speed up bitsOilman (The). 1988, Num 3, issn 0305-2281, 42Article

L'efficacité de l'utilisation du polyacrylamide de la marque DK Drill A-1DOPILKO, L. I; LUZHANITSA, V. N; MIROSHNICHENKO, N. P et al.Neftânaâ i gazovaâ promyšlennost′ (Kiev. 1960). 1988, Num 1, pp 28-29, issn 0548-1414Article

Drilling information retrieved from databaseBIZANTI, M. S; SHOAEE, S.Petroleum engineer international. 1988, Vol 60, Num 10, pp 58-59, issn 0164-8322Article

Possibilités d'utilisation des trépans de type tranchant dans les dépôts de craie de la Sibérie occidentaleBOCHKOVSKIJ, A. M; SEMENOV, A. I; TRESKIN, V. P et al.Neftânaâ i gazovaâ promyšlennost′ (Kiev. 1960). 1988, Num 4, pp 27-29, issn 0548-1414Article

Huile de tall légère comme additif pour les boues de forageMOTYLEVA, T. A; SHALYAPIN, M. M; KOVESHNIKOV, V. I et al.Gazovaâ promyšlennost'. 1988, Num 6, pp 28-29, issn 0016-5581Article

Applications of a computerized bit record databaseSTEINKE, S. C; WATSON, J. A; BREMNER, D. C et al.IADC/SPE Drilling conference. 1988, pp 109-114Conference Paper

Dynamic filtration of Bentonite muds under different flow conditionsFORDHAM, E. J; LADUA, H. K. J; HALL, C et al.Annual technical conference and exhibition. 1988, pp 219-226Conference Paper

Hydraulic optimization of PDC bits by visualization methodsBISSON, P; CHOUX, J. C; PROVO, A et al.European petroleum conference. 1988, pp 329-339Conference Paper

Mechanical aspects of medium radius well designKERR, O; LESLEY, K.Petroleum engineering international meeting. 1988, pp 719-726Conference Paper

Obtaining native-state cores with a specially designed water-free coring fluidHEMPHILL, A. T; MAYES, T. M.IADC/SPE Drilling conference. 1988, pp 529-535Conference Paper

The characterization of a drilling fluid additiveENGLAND, A. A; DAVIS, N.IADC/SPE Drilling conference. 1988, pp 187-195Conference Paper

Kostenreduzierung und Verbesserung der Spülungseigenschaften mit Polydrill = Réduction du coût et amélioration des propriétés des boues de forage grâce à l'utilisation de Polydrill = Cost reduction and impairement of drilling and properties by using PolydrillUJMA, K.-H; SAHR, M; PLANK, J et al.Erdöl, Erdgas, Kohle. 1987, Vol 103, Num 5, pp 219-222, issn 0179-3187Article

Automated mud-handling: norsk hydro's experienceNoroil. 1987, Vol 15, Num 3, issn 0332-544X, 27Article

L'utilité de l'utilisation de boues de forage polymères pour le forage de la couche productiveKHEJFETS, I. B; TOKUNOV, V. I.Neftânaâ i gazovaâ promyšlennost′ (Kiev. 1960). 1987, Num 3, pp 34-35, issn 0548-1414Article

Increasing penetration rates with high-pressure mudMCNALLY, R.Petroleum engineer international. 1987, Vol 59, Num 12, pp 46-47, issn 0164-8322Article

Etude de l'état de la zone voisine du fond des puits dans des couches terrigènesKHOMINETS, Z. D.Neftânoe hozjajstvo. 1987, Num 7, pp 18-22, issn 0028-2448Article

Le cake de boue et son influence sur le processus de forage et de mise en exploitation des horizons profondsISMAJLOV, A. P; MEKHTIEV, P. G.Azerbajdžanskoe neftânoe hozâjstvo. 1987, Num 11, pp 62-64, issn 0365-8554Article