... material (LCM) additives to mitigate losses. This helped to set casing until the 12.25-in. section at total depth (TD) with a narrow mud-weight window of 0.2 to 0.3 ppg. A mud weight of 12.7 to 13.0 ppg was used initially in the 8.5-in. section based on the look-ahead model and was proactively increased...

... and the previous casing shoe did not fall below the set limits throughout the job. While the secondary objective was to reduce and/or eliminate losses. With the operator depth being 4,151m (13,619 ft), water depth of 3,276m (10,748 ft), surface mud weight 1.03 SG (8.58 ppg) with down hole equivalent mud weight...

... weight used during drilling of offset wells. Pore pressure value is in range of 13.7 ppg to 14.1 ppg EMW with sudden change in regime during transition from Trap formation to Mesozoic formation. Stable mud weights to avoid breakouts are in range of 14.2 ppg to 14.7 ppg EMW for vertical well. The local...

... in advance, even in cases where managed pressure drilling (MPD) equipment is used. pressure surge seismic velocity well control formation flow shale upstream oil & gas annular pressure drilling geopressure compartmentalization transgression ppg pressure profile fracture pressure...

... been successfully applied to wells on land and offshore, especially for preventing and remediating lost circulation issues while cementing. The rheological properties of unweighted and weighted spacers (12 to16 ppg) were measured from room temperature up to 400°F with a stabilizer. The new spacer...

... cementing flexibility and logistics. fluid loss control additive foamed cement exhibition ppg offshore cement formulation slurry upstream oil & gas stabilizer case history operation drilling fluids and materials cement slurry potassium chloride foamed slurry casing and cementing...

... from 40 to 190°F. In addition, it helps to improve system flexibility and logistics. Land and offshore applications of the new liquid foam stabilizer will also be described in detail. density distribution ppg liquid foam stabilizer cement property foam quality stabilizer foamed cement sea...

...-pressure gas reservoirs. In Brazil, exploration campaigns are moving to presalt reservoirs where operators face a combination of these challenges. An overpressured, presalt gas reservoir in the Santos basin was discovered with an equivalent pore pressure ranging from 18.5 to 18.7 ppg (ultrahigh pressure...

... simulation high pressure creep upstream oil & gas reservoir characterization fast creep ppg geomechanical model salt formation annulus pressure constitutive model offshore technology conference salt creep otc 23654 high temperature environment OTC 23654 Analysis of Salt Creep and Well...

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... micro-flux control method pore pressure drilling conference drilling process narrow margin well control drilling otc 15062 back pressure offshore technology conference leuchtenberg texas ppg Copyright 2003, Offshore Technology Conference This paper was prepared for presentation...

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... filtercake stickometer ppg coefficient laboratory drilling fluid formulation lubricant OTC 3239 LABORATORY AND FIELD DATA INDICATE WATER BASE DRILLING FLUIDS THAT RESIST DIFFERENTIAL-PRESSURE PIPE STICKING by Dan Hunter, NL Baroid, and Neal Adams, Prentice and Records Enterprises o Copyright 1978...