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Project Acronym: TADP | State: Operational Phase | Expedition ID: 5066

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  • (inserted: 21.05.2024 20:39)
    TADP: 2024-05-20

    First samples are being analysed

    First score catcher samples are analysed and securely stored in mDIS.

  • (inserted: 18.05.2024 15:52)
    TADP: 2024-05-15

    The activities of the Outreach team continue

    The activities of the Outreach team continue. The visits to the schools were also a success

  • (inserted: 18.05.2024 15:49)
    TADP: 2024-05-14

    Outreach workshop to present and clarify the project's objectives to the Bagre community

    With the participation of government agents, teachers, students, and locals, the outreach team organizes a workshop to present and clarify the project's objectives to the Bagre community

  • (inserted: 18.05.2024 15:48)
    TADP: 2024-05-12

    Outreach team arrives in Bagre

    The Outreach team arrives in Bagre and visits villages, talking to locals to understand the population's reality and areas of interest for geotourism and geoconservation. From right to left: Melqui, Carlos Mazoca and Raquel Romão.

  • (inserted: 18.05.2024 15:45)
    TADP: 2024-05-01

    The assembly of the drill rig continues

    The assembly of the drill rig at Marajó Island, Amazon region

  • (inserted: 18.05.2024 15:43)
    TADP: 2024-04-30

    Assembly of drill rig

    The rain, the tide level and the logistic and supply issues in the Marajó region make the assembly of the rig a challenge

  • (inserted: 18.05.2024 15:41)
    TADP: 2024-04-09

    Unloading completed

    The unloading operation was successfully completed without accidents. This was an experience and a challenge for the crew that crossed the Amazon.

  • (inserted: 18.05.2024 15:38)
    TADP: 2024-03-31

    The ferry with the drill rig safely arrived at its new destination

    From the western Amazon and travelling 3800 km through Amazonian rivers, the ferry with the drill rig arrived in the eastern Amazon. Hello, Bagre city, Marajó Islando.

  • (inserted: 08.04.2024 10:20)
    TADP: 2024-03-28

    Core handling and mDIS course for the next site

    Fernanda Gonçalves is overseeing data management and training team members who will accompany the drilling activities at the Marajó site.

  • (inserted: 08.04.2024 10:19)
    TADP: 2024-03-22

    Loading the core crate

    The USP team is involved in sorting and loading the core crates, and creating a packing list to calculate and review the weight for shipment to the Continental Scientific Drilling Facility at the University of Minnesota. This is another team activity.

  • (inserted: 08.04.2024 10:18)
    TADP: 2024-03-21

    Wood crate for storing and shipping the cores

    We now have core crates!! The wooden core crates receive the heat treatment seal (ISPM-15) and are certified for international shipment.

  • (inserted: 08.04.2024 10:16)
    TADP: 2024-03-14

    Core liners at USP

    All the cores have been inspected for caps, tapes, plastic liners, and labels, and are now stored, awaiting the core crate.

  • (inserted: 08.04.2024 10:12)
    TADP: 2024-03-11

    Core liners arrive at USP

    After a safe journey, the core liners have arrived at USP. Project manager Isaac has organized and managed hundreds of cores and project logistics.

  • (inserted: 08.04.2024 10:11)
    TADP: 2024-03-06

    Drilling site cleaned

    The borehole was cemented, and the drilling site was thoroughly cleaned. Thank you, Acre, for the lessons. Let's make scientific research.

  • (inserted: 08.04.2024 10:09)
    TADP: 2024-03-03

    Team at work

    The drilling company team is still at the Acre site to clean up the drilling site. The on-site team receives guidance from the safety technician on accident prevention as well as comprehensive guidance on disease prevention, such as cervical cancer and skin cancer.

  • (inserted: 08.04.2024 10:08)
    TADP: 2024-03-02

    Ready to ship

    The ferry is completely loaded and ready to depart.

  • (inserted: 08.04.2024 10:07)
    TADP: 2024-03-01

    Drill rig ready to ship

    The loading process continues, and the drill rig is ready to be shipped.

  • (inserted: 08.04.2024 10:05)
    TADP: 2024-02-29

    Drilling tools en route

    The ferryboat transporting the drilling tools to the Marajó site arrived at Acre. It is named Pororoca.

  • (inserted: 08.04.2024 10:03)
    TADP: 2024-02-27

    Core liners ready to ship – the first step

    The core liners were loaded onto the truck for transportation to the University of São Paulo. This is a long road trip from the western Amazon to São Paulo city, covering around 4500 km. Local workers (Maciel and Carlinhos) and drivers (Gilderlan and Cícero) were essential in planning the storage and loading of the core liners onto the truck.

  • (inserted: 08.04.2024 10:00)
    TADP: 2024-02-26

    Rainy and flood stage in Juruá River

    Our project manager, Isaac, arrived at the Acre site to oversee the loading of core liners for shipment to the University of São Paulo and found the Juruá River at a high stage. Back to the Message of the Day from July 9th to see the river at its low stage.

  • (inserted: 08.04.2024 09:58)
    TADP: 2023-12-23

    Last TADP member on-site

    Demobilization has begun. Clauses is the last TADP member on-site and is overseeing the abandonment protocol of the borehole.
    Several individuals deserve special thanks for their considerable efforts and constant support at Acre. This includes Clauses (Company Man), Isaac (Project Manager), Angela (Geomicrobiologist), Ingo and his students, Roney and Alderlene, Said Kamrani (ICDP), Marcos, Tácio, and Larissa (Geophysical Logging Team), several scientists at ICDP (Thomas, Cindy, Uli), local support provided by Francisco Negri at UFAC, and numerous individuals at USP who assisted with ordering, shipping, scheduling, etc.
    We also extend special thanks to the landowner, Tárcito Batista. Additionally, we are grateful to the many people who spent time at the drill site, including some who dedicated several weeks but were unable to witness a single drill core emerging from the hole. Lastly, but not least, we express our gratitude to Gloria, Adriana, and the outreach team for their many creative efforts to engage the public.

  • (inserted: 08.04.2024 09:56)
    TADP: 2023-12-19

    Completing drilling at the Acre site

    The second borehole sidetrack has failed. We have not been able to recover any core since mid-October and, in order to preserve funds for drilling at the Marajó site, we have decided to halt drilling at Acre. We have recovered 923 meters of continuous core, which should enable us to do some great science.

  • (inserted: 13.12.2023 08:02)
    TADP: 2023-12-09

    Operations in December

    The operations continue in the western Amazon and It's time for Christmas lights at the drilling site.
    The sidetrack operation has presented many challenges in performing the sidetrack through the casing. The drilling company is still in an attempt to second sidetrack the operation. The field team closely monitors and updates the executive committee daily. The executive committee holds weekly meetings to determine the best course for the project and discusses the decision-making with the drilling company.

  • (inserted: 08.12.2023 07:35)
    TADP: 2023-12-01

    Waiting for a Sidetrack

    Scientific activities are still suspended. The scientific team is limited to the project manager PhD Isaac Bezerra and microbiology PhD Angela Jimenez. They are monitoring the operations with the Company Man Clauses Sérgio.
    The first attempt to sidetrack the operation initiated on November 20th was not successful. The drilling company has made a second attempt, as geophysical logging indicated the possibility of the drill pipe sticking, hindering the sidetrack in an open hole.
    Adjustments were made to tools and the plan, and a new attempt began on November 30th. These are time-consuming operations as they require extensive preparation and maneuvers.
    These have been days of great learning in drilling operations and patience.

  • (inserted: 27.11.2023 07:54)
    TADP: 2023-11-19_25

    Geophysical logging school

    The downhole geophysical logging (Full Wave Sonic probe) was conducted to identify the most suitable interval for a side track operation.
    The ongoing activities have been a great learning experience for everyone. The geophysical activities conducted by the on-site team and led by Project Manager Isaac have always had the support of Marcos Bolognini and Tácio Bicudo. Katja Hesse assisted in the processing and interpretation of FWS data. In the photo, clockwise from top to bottom: Marcos Bolognini, Tácio Bicudo, and Isaac Bezerra analyze the FWS data.

  • (inserted: 15.11.2023 09:02)
    TADP: 2023-11-12

    River level rises

    After the rain, the level of the Juruá River begins to rise. Houses are prepared to float or be lifted by poles when the river level rises.

  • (inserted: 15.11.2023 09:01)
    TADP: 2023-11-11

    Fishing tools on site

    A part of the core barrel got stuck at the bottom of the critical section. GEOSOL is trying tools to fish out the stuck core barrel and drill pipe.

  • (inserted: 15.11.2023 08:59)
    TADP: 2023-11-10

    Core catcher

    In the last attempt to pass through the critical point, the driller encounters resistance in the advance that causes damage to the fingers of the core catcher tool.

  • (inserted: 15.11.2023 08:48)
    TADP: 2023-11-09

    Cement becomes harder

    As it deepens, the cement becomes harder.

  • (inserted: 15.11.2023 08:46)
    TADP: 2023-11-08

    The Amazonian winter has come

    The rain becomes common during the so-called Amazonian winter, a relief from the intense heat of the past few months. The operation can be halted due to the thunderstorm.

  • (inserted: 15.11.2023 08:45)
    TADP: 2023-11-07

    Contaminated cement

    In the first recovered section, contaminated cement was observed. This is a normal situation since fluid is used to displace the cement through the drill pipe. Improvement is expected as the depth increases, with cement becoming harder.

  • (inserted: 15.11.2023 08:44)
    TADP: 2023-11-06

    Safety guy work

    During the week, Ricardo Sampaio, the GEOSOL safety technician, worked with the employee team on SIPAT, a week dedicated to raising awareness about safety and environmental practices. The activities were useful for guiding, training, and ensuring the safety of employees while encouraging safe hand protection habits.

  • (inserted: 15.11.2023 08:42)
    TADP: 2023-11-05

    A cementation operation is in progress

    The cementing company is conducting a cementation operation to fill the overwashed section and the zone with a damaged drill pipe.

  • (inserted: 15.11.2023 08:41)
    TADP: 2023-11-04

    Geophysical logging team in November again

    The scientific team always faces a challenge when performing downhole logging in open boreholes and encountering obstacles during descent. An overwashed section was confirmed at a depth of 740 m where there was a cut of the 4.5'' drill pipe.

  • (inserted: 15.11.2023 08:32)
    TADP: 2023-11-02

    Drilling resumed

    A slow advance is being made through the collapsed section. The recovered material consists of a mixture of sandstone clasts, and mudstone enveloped by drilling fluid.

  • (inserted: 15.11.2023 08:31)
    TADP: 2023-11-01

    Geophysical logging team in November

    Once the cement did not show continuous recovery, GEOSOL requested that the scientific team perform the downhole logging again. Logging revealed the filling of the overwashed section. The scientific team always relies on the support of GEOSOL staff.

  • (inserted: 15.11.2023 08:28)
    TADP: 2023-10-30

    Cement in the overwashed zone

    The overwashed zone has been filled with cement. The cement exhibits a discontinuous and brittle state. It's not the ideal scenario, but filling the annular space prevents the accumulation of cuttings through the annulus. The drilling through the collapsed section is the next step.

  • (inserted: 15.11.2023 08:27)
    TADP: 2023-10-29

    Keep moving

    Work in the scientific tent is paused, but the scientific team present in the site engages in activities to stay active.

  • (inserted: 15.11.2023 08:26)
    TADP: 2023-10-28

    Meeting to define the next steps

    Clauses Sérgio, the company man, meets with Said Kamrani, the Drilling engineer from ICDP, to present to the Executive Commitee the options and challenges for the resumption of drilling.

  • (inserted: 15.11.2023 08:24)
    TADP: 2023-10-27

    How small we are in the face of outcrops

    Inclined heterolithic stratification on the margin of the Cruzeiro do Sul city. Cemented mudstone is a common feature in outcrops exposed along the margin of the Juruá River and also in the recovered cores.

  • (inserted: 15.11.2023 08:19)
    TADP: 2023-10-26

    Cementing operation not completely successful

    The cementing operation did not completely fill the overwashed section. The GEOSOL drilling company is pulling out the drill pipe to operate again.

  • (inserted: 15.11.2023 08:18)
    TADP: 2023-10-25

    It is mango season

    While the drill pipe is going down to check the cement top, we have a lot of fruits on the mango tree. Locals, Geosol employees, and the scientific team always take mangoes to the lodge at the end of the shift.

  • (inserted: 15.11.2023 08:17)
    TADP: 2023-10-24

    Coffee supply

    Professor André Marconato is monitoring on-site operations and delivered a gift from Carlos Mazoca for the team. The team is very happy, supplied with 2 kg of special coffee.

  • (inserted: 15.11.2023 08:16)
    TADP: 2023-10-23

    Taco party

    While the team waits for the cement to dry, Angela leads the on-site team in making pasta and guacamole with tacos. Angela Jimenez is from Honduras and completed her doctoral studies in Brazil.

  • (inserted: 15.11.2023 08:14)
    TADP: 2023-10-22

    Geophysical logging team in October

    The on-site team was requested to perform Caliper downhole logging at critical depths. An enlargement of at least 52 cm in diameter and 2 m deeper below the shoe was identified. GEOSOL decided to cement the top of the overwashed section that accumulated the gravel and filled the annular space.

  • (inserted: 15.11.2023 08:13)
    TADP: 2023-10-21

    Doghouse receives the pink lace

    GEOSOL strengthens the awareness campaign, whose main goal is to alert women and society about the importance of prevention and early diagnosis of breast cancer and cervical cancer. The pink lace on the doghouse is a symbol present at the drill site.

  • (inserted: 15.11.2023 08:08)
    TADP: 2023-10-20


    Broken fragments of mudstone, sandstone, and even cemented gravel are brought to the surface by the drilling mud and separated on the shaker.

  • (inserted: 15.11.2023 08:07)
    TADP: 2023-10-19

    Tricone drill bit

    The drag bit did not clean the complete section. GEOSOL requested from the headquarter in Minas Gerais state the shipment of a tricone drill bit. The bit was machined to pass through the 4 15/16” drill pipe. In the photo, the drill passes through the template to ensure that it has free passage through the drill pipe. The tricone should reduce the size of the clasts and have better efficiency in cleaning the well.

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