Extended-Reach Drilling (ERD)—The Main Problems and Current Achievements
نویسندگان
چکیده
With the development of different segments within drilling technology in last three decades, well has become possible harsh downhole conditions. The vertical provides access to oil and gas reserves located at a certain depth directly below wellsite, large number wells are required for exploitation hydrocarbons from spatially expanded deposits. However, borehole can deviate well, which means that target zone be reached by horizontal directional well. this type especially case an extended-reach (ERW), length wellbore contact with reservoir and/or several separate reservoirs is significantly increased, therefore, it much better option later production phase. Unfortunately, application (ERD technology), all its advantages, cause problems mostly related increased torque, drag, hole cleaning equivalent circulation density (ECD), as increase price. Overcoming these requires continuous operational change enable operators address challenges. Today, longest reaches 15,240 m (50,000 ft), raises question technological economic feasibility project, lower price on energy market. This paper comprehensive overview technology, discusses main analyzes current achievements.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2023
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app13074112