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- (inserted: 27.11.2023 06:54)
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 07:45)
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 07:44)
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 07:41)
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 07:31)
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 07:28)
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 07:14)
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 07:13)
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 07:07)
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.
- (inserted: 15.11.2023 07:06)
Farewell to Larissa Tamura
Larissa returned to the drill site and assisted in core handling operations. She brought delicious items for the team in her luggage. We loved the coffee, candies, and cookies. Larissa has been crucial in managing the field team.
- (inserted: 15.11.2023 07:04)
Professor Marconato arrives and leads a team for the description of sedimentological profiles and sampling in an outcrop with overlapping layers of paleosoil in the Profeta village. Prof. Negri is excited to learn new techniques and assist in the sampling.
- (inserted: 15.11.2023 07:03)
Sedimentological description of modern sandbar along the Juruá River at Luzeiro village
While Geosol performs the drill pipe take-off operation, Professor Felipe Figueiredo leads a team to a sedimentological description of modern sandbars on the river banks along the Juruá River. Professor Felipe is a postdoctoral researcher studying modern bars and assisting in facies modeling of the geological record of large rivers.
- (inserted: 14.11.2023 10:51)
A day in the field on a riverbank in the Profeta community
When there is a break in drilling activities, Professor Renato and Professor Felipe visit and describe outcrops, learning about the geology and architecture of the deposits in the region. In the Profeta Village, there are outcrops of reddish mudstone with carbonate cement intercalated with bodies of sand with lobate geometry and undulating bases.
- (inserted: 14.11.2023 10:49)
Night shift at the end of the shift
Professor Renato Almeida from the University of São Paulo and Professor Felipe Torres from the University of Sergipe arrived to assist Isaac Bezerra in core handling activities and in communication with Geosol management on site, providing updates to the executive committee.
- (inserted: 14.11.2023 10:48)
Prof. Francisco Ricardo Negri from the University of Acre is on the drill site
Professor Negri has been crucial in planning drilling activities in the Acre Basin. He has contributed to advancing research in paleozoology in the state of Acre since 1988. His energy and dedication to work during corehandling activities are contagious.
- (inserted: 14.11.2023 10:47)
Wood debris in the Core Catcher
Pieces of wood debris are primarily fibrous or flaky. The sand associated with them is high sulfur (S) coal linked to the organic matter itself, a phenomenon commonly observed in coal deposits. Discussions are ongoing regarding the occurrence of high-sulfur coal deposited in brackish environments or not.
- (inserted: 10.10.2023 06:26)
Alderlene is back at the drill site.
While the drilling company is finishing the cementation phase, the team on site is conducting fieldwork on fluvial terraces near the drill site city.
These fluvial terraces are an important piece for understanding the evolution of the landscape of western Amazonia.
- (inserted: 10.10.2023 06:24)
After the project manager's inspection, the condition of the core samples stored in the warehouse is being discussed.
The executive committee is concerned that it may be microbial growth. However, the dark coloration is related to the decomposition of the drilling fluid.
- (inserted: 10.10.2023 06:22)
The team on site has taken on a task: conducting geophysical downhole logging.
The caliper probe was used to check for overwash below the stuck pipeline. An overwash section was identified, and cementing is required.
None of the team members in the operation are geophysicists. The team on site received online guidance from geophysicist Tacio Bicudo.