Banca de DEFESA: WILLAME GOMES DA SILVA BATISTA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : WILLAME GOMES DA SILVA BATISTA
DATE: 10/09/2020
TIME: 14:00
LOCAL: Remotamente pelo google meet
TITLE:

Evaluation of Polyester Resin as an alternative material for application in Oil Well Plug and Abandonment operations.

KEY WORDS:

Plug and Abandonment; alternatives materials; polyester resin

PAGES: 70
BIG AREA: Ciências Exatas e da Terra
AREA: Química
SUBÁREA: Química Orgânica
SPECIALTY: Síntese Orgânica
SUMMARY:

Alternative materials to portland cement have been extensively studied in recent years for application in oil well plug and abandonment operations. Among these materials, thermosetting resins have stood out due to their rheological and mechanical properties being compatible with the application in oil wells. Resin systems containing reused PET in their composition were evaluated, as well as the influence of montmorillonite and dolomite. The resin compositions were characterized using infrared, with characteristic bands of polyester and styrene monomers being identified in all systems, even with the addition of the thixotropic agent and mineral filler. Compressive strength (RC), rheology, and stability under sedimentation tests were performed. The pure polyester resin showed a RC value above 90 MPa for all curing times. This result is 12 times higher than the minimum required for abandonment operations (7 MPa). All systems presented Newtonian behavior and the addition of 5% dolomite decreased the apparent viscosity. The optimum systems was formulated with 0.1 montmorillonite and 5% dolomite. Based on the results presented, the polyester resin proved to be promising for application in operations of plug and abandonment of oil wells.

BANKING MEMBERS:
Presidente - 1804366 - JÚLIO CÉZAR DE OLIVEIRA FREITAS
Interno - 1803692 - FABRICIO GAVA MENEZES
Externo à Instituição - PAULO HENRIQUE SILVA SANTOS MOREIRA - UFRN
Externo à Instituição - RODRIGO CÉSAR SANTIAGO - UFERSA