... Abstract A method is proposed to calculate pore pressure at the bit while drilling using all data typically available in a modern drilling operation. This method utilizes a machine learning approach that can estimate pore pressures at the same or lesser range of uncertainty as traditional...

... Abstract The pre-salt reserves offshore from Santos basin represent a great opportunity and probably the most important recent oil discovery in Brazil. These carbonate reservoirs are currently drilled with various types of drill bits, and have proven to be a challenging environment. Since...

... recovery factor investment discovery operation integrated development plan concession drilling offshore technology conference Introduction - Campos Basin History: The crisis of the 70's challenged our capacity and opened a great opportunity for the Brazilian offshore. More than 40 years later...

... optimization zbb analysis drilling Introduction One of the most important parts of a well design, which directly affects the feasibility of the projects, is its duration estimate, under which the budget is carried out. Thus, a lot of work is dedicated to obtaining these estimates, in order to obtain...

... and drilling dynamics data as received by the electronic drilling recorder (EDR). The software was applied real-time as a well was being drilled in deepwater Gulf of Mexico. Thorough examination and conditioning of EDR and wireline data give way to a training model construction for the artificial neural...

... approach in the OCS. offshore technology roadmap efficiency artificial intelligence national energy technology laboratory gov offshore drilling research portfolio subsea system recovery national laboratory offshore research data mining partnership public-private partnership laboratory...

... Abstract Exploration wells in India are being drilled to target tight sandstone reservoirs of Mesozoic age with potential hydrocarbon accumulation in the Gulf of Kutch (GK) & Gulf of Saurashtra (GS). Typical permeability ranges from 0.1 md to 2.5 md with effective porosity in range of 8...

... Abstract Due to the special working environment, offshore drilling operation faces multiple challenges such as narrow pressure margin, difficulty in detecting down hole conditions and high operational risk. A new managed pressure drilling equipment is developed and named as pressure control...

... characterization remediation of hydrates offshore technology conference drillstem/well testing fpso facility enhancement justification methanol treatment asset team hydrate remediation oilfield chemistry drillstem testing drilling engineering evaluation scale remediation scale inhibition methanol...

... Abstract Lost circulation is one of the frequent challenges encountered in the well drilling and completion process, which can not only increase well construction time and operational cost but also pose great risk to the formation. However, choosing the most useful treatments may still...

... Abstract This paper demonstrates how an operator mitigated a hazardous pore pressure drilling risk using a technology that was new to the operator. The Seismic While Drilling (SWD) increased safety and efficiency at lower cost over commonly used alternatives. In 2019 MOL Norge AS drilled...

... well control reduction upstream oil & gas drilling deepwater operation efficiency mpd annular pressure drilling unconventional efficiency tool mud weight reservoir exhibition schlumberger offshore technology conference mpd technique liner application underbalanced operation...

... cluster, historically and in near future. Ever since first production by PX and NX in 2004, infill drilling campaigns have been needed to sustain production above the economic limit of 5,000 bopd. Later in 2009, approximately a year after PR kicked off its first oil; the14 km pipeline to FPSO...

... Deep water projects are presently complex, where more drilling challenges can be encountered and higher uncertainty increases the risk of problems during the well construction phase, especially due to the narrow pressure window environments. Managed Pressure Drilling (MPD) is one...

...Abstract Abstract Pertamina EP is an Indonesian national oil company which subsidiaries of PT Pertamina (Persero). For nearly 60 years, the Pertamina EP drilling area has been located onshore. In September 2017, Pertamina EP successfully conducted a Poleng N-2 well as the first drilling...

... require adequate time for innovative concept designs to conduct necessary pilots and qualification. Collaboration between cross-functional project teams – construction, drilling, testing, and production – is examined from the economic delivery of several challenging wells under various environmental...

... in successful field applications in similarly complex wells. The new model allowed drilling personnel to identify the parameters most likely to induce fractures. Equivalent circulating density (ECD) had the most impact, followed by minimum horizontal stress, Young’s modulus, fracture length, and Poisson’s...

... South China Sea is one of the offshore HPHT region, with the maximum 2.38 pressure coefficient, 480 degF bottom temperature and 50% CO 2 . The drilling and completion are challenging problems. This paper reviews the past 20 years' researches and practices in South China Sea HPHT area. Based...

... the well trajectory to make the horizontal well successfully landing, improve the level of drilling encounter rate, to achieve the ideal height of water protection is the key to achieve the optimal development effect. After many years of development, the geological-oriented technology has been adopted...

... Alberty MW , Mingle JC , Byrd TM . Mechanisms of shallow waterflows and drilling practices for intervention [J] . SPE Drilling & Completion , 1999 , 14 ( 2 ): 123 – 129 . Eaton , L. F. Drilling through Deepwater shallow-water flow zones at Ursa [C...