In the course work, a vertical production oil well is designed on a design horizon of US10 with a depth of 3120 m at the Sorovskoye field of the Khanty-Mansi Autonomous Okrug.
Well construction: direction 324mm 40m, conductor 245mm 700m, production casing 178mm 3120m. PDC bits in all intervals, e.g. 393.7 / Kond295.3 / EK215.9mm, GZD under EK D3-195
The coursework was completed for the Tyumen Industrial University on the basis of a real group project for the Sorovskoye field and contains enough information to write a diploma on its basis.
TABLE OF CONTENTS
Introduction ………………………………………………………………………………… .4
1. The geological part ......................................................
2. Information on the intervals of complications along the wellbore ………………… ..23
3. Information about the design of the well ………………………………………… ..27
4. Information about the types and properties of flushing fluid .............................. 29
5. Technical part ………………………………………. …………………… .31
5.1. Analysis of the state of the art and technology for drilling wells in the area of well construction ...
5.2. Separation of the geological section of the well into intervals by drillability ...................................................... 33
5.3. Choice of the type of bit and its flushing unit ……… .. ……………………… 36
5.4. The choice of the method of drilling ...................................... ......................
5.5. Calculation of axial load on the bit …………………………………………… ..38
5.6. The calculation of the rotational speed of the bit ……………. ………………………………… 39
5.7. The selection of a downhole motor .............................................. 40
5.8. Justification of the layout of the drill string ……………. ………………… .44
5.9. Calculation of the drill string for strength .............................................................. 46
5.10. Designing the flow rate of flushing fluid ...................... .............. 48
5.11. Hydraulic flushing program. Calculation of the maximum pressure on the abutment of mud pumps ...
5.12. The choice of the type of mud pumps .....................................................
5. 13 Calculation of the diameter of the bits of the bit …………………………………………… ..56
5.14 Selection of the drilling rig .............................................. 57
Conclusions ………………………………………………………………………………… ..
List of references .................................. 60
Applications:
A) Geological and technical order for drilling a well at the Sorovskoye field
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