Interactive Drilling for Fast Track Oilfield Development by Jacqueline Lecourtier

By Jacqueline Lecourtier

Those are the complaints of the convention held in Rueil-Malmaison, November nine, 1999 addressing a subject matter that's of serious strategic value, and represents an incredible commercial problem to the complete petroleum undefined. To speed up the advance of oil fields, it's important to reduce the time among the invention of a box and while it is going into creation. which means new innovations for the advance of oil fields needs to be carried out, together with the institution of a long way nearer ties with the reserve evaluation degree. This process, referred to as “fast music development”, opens up new customers for drilling and accordingly, new technological demanding situations. the purpose of interactive drilling is to take away geological uncertainties whereas drilling progresses, on the way to larger direct the good itself to the construction zones. This consists of thoroughly re-thinking the interactive tactics that hyperlink drilling measurements to the geological versions or reservoirs that have been the place to begin for scheduling the good drilling. the result of this paintings will significantly impression the technical software that's followed for drilling wells sooner or later. This improvement can be liked to its complete volume with the exploration of deep and intensely deep offshore fields, the place premiums of go back are continually associated with maximized restoration and creation.
Content:
• entrance topic
• desk of Contents
• 1. starting tackle
2. clever Drilling: either Technological and Cultural Revolutions for the Oil
three. good facts Acquisition thoughts
four. Geosteering possibilities
five. attaining and keeping more advantageous Drilling functionality within the Tectonically under pressure Andean Foothills of Colombia
6. Wellbore balance: the most vital Engineering demanding situations whilst Drilling clever Wells
7. Interactive Drilling: The quickest approach from Reservoir to creation
• eight. Synthesis of the around desk Discussions

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Example text

Thus t h e hazardous situation of a blow out can be avoided. As a result, working conditions for employees on the rig site will become safer. Secondly t h e potential risk of a n environmental spill will be eliminated, with all the damage t o nature and capital losses associated with an uncontrolled pressure burst. Acquired Experience in Interactive Drilling In many drilling places in the world today, drilling trajectories a r e planned in a much more complex way than was done in t h e past. In order to achieve the maximum production out of a n existing reservoir, t h e well path should be placed to follow the reservoir in the best possible well.

More specifically, it means using formation evaluation (FE)-MWD sensors in conjunction with directional data mainly in horizontal wells t o maintain the stratigraphic position of the drilling assembly, and t o effectively steer the drilling assembly into the target horizon (Fig. I ) . Some of the more important FE sensors are the resistivity, gamma ray, and neutron density type. The multiple depths of investigation resistivity tool F. Donati / Geosteering Opportunities 46 Density Fig. 1 allow for quantitative determination of formation resistivity, providing early bed boundary detection in horizontal or high inclination wells.

It was carried out from a number of wells drilled in several geological basins. 191, t o classify them into “thermodynamic units”, A. Louis / Well Data Acquisition Strategies 40 Gas while drilling 4 4- 8 C2/C3 10 4 5 10 11 00 ~ I O O O O GOR (rn3/rn3) I, I Fig. 19 optimizing therefore the upcoming program of wireline formation testers and DSTs. A correspondence between gas ratios, lithology and fluids has been validated and used throughout the field development (Fig. 20). The gas heating value for every level was established, using as a calibration the correspondence between the gas shows values and the fluids from levels tested.

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