1 / 22

Mud Temperature Effects on Lost Returns

Original Concept. . Temperature Effects on Borehole. Higher borehole temperatures (from hot drilling fluids) will cause the rock to try to expand.Since it cannot expand outward it tries to expand radially and towards the inside of the borehole.Since it cannot expand, the hoop stress level in the r

cathy
Télécharger la présentation

Mud Temperature Effects on Lost Returns

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Mud Temperature Effects on Lost Returns For Deepwater Wells

    2. Original Concept

    3. Temperature Effects on Borehole

    4. Temperature Effects on Borehole

    5. Increasing the Drilling Window

    6. Lost Returns Problems

    7. Production Field Data

    8. Temperature Effects on Borehole

    9. SPE 25732. " predicts an increase of the actual LOT value at the shoe when deepening the hole, with respect to the measurements made at the beginning of the drilling phase.“ SPE 71366. States that " the breakdown mud weight decreases by .03 ppg …for every 1 deg centigrade of cooling of a vertical well." SPE 29428. Says " Borehole stress evaluation shows how the near well-bore fracture gradient can be exceeded, when cooling is combined with ECD." More Documentation

    10. The Well Test Guerrera 90

    11. Test Well Procedure

    12. Well Test Results

    13. Well Test Results

    14. Test Well

    15. Test Well

    16. Test Well

    17. Historical Data In Deepwater

    18. Well # 1

    19. Well # 2

    20. Cementing

    21. Frac Gradient Plus For Cementing

    23. Circulating Hot Muds Results in a total formation temperature increase of 50F

More Related