Automated drilling in Brazil's presalt enhances ROP and efficiency

Overview

Traditional drilling operations rely on manual intervention that can be time-consuming, costly, and pose safety risks. However, autonomous drilling systems are now available to help improve efficiency and safety. The advantages of automated remote drilling techniques were explored in Brazilian presalt reserves to increase efficiency, reduce operational costs, enhance safety, and minimize environmental impact.

Challenges

Brazilian presalt reservoirs have deepwater zones that present challenges to drilling because of complex geological formations and extreme conditions. Traditional drilling methods require substantial manual intervention and multiple human operators in hazardous environments. Because of the extended length of these well types, human fatigue and continuous crew changes can lead to nonproductive time (NPT).

The most effective method for accident prevention is to reduce personnel on the rigsite to minimize exposure to the risks associated with offshore operations.

Solution

The LOGIX® automation and remote operations platform was deployed at the offshore rigsite. It was operated remotely by directional drillers from the operator’s remote drilling center. The LOGIX® platform and iCruise® intelligent RSS controlled surface and downhole automation, and performed directional drilling commands without human intervention.

Automated drilling systems continuously operate without crew shift changes or breaks to ensure a consistent drilling pace. This reduces downtime attributed to fatigue or human error. The use of advanced algorithms and artificial intelligence enables real-time surveillance and decision-making to optimize drilling performance and reduce NPT. This improved efficiency translates to cost savings because less time is required to complete drilling projects.

Drilling in deepwater environments includes inherent safety risks. Automated and remote drilling systems reduce human exposure to hazardous conditions to help protect of workers. In addition, real-time surveillance and predictive maintenance algorithms enable early detection of potential equipment failure, prevent incidents, and reduce risks associated with downtime.

Automated drilling technologies that include advanced data analytics and machine learning algorithms contribute to more accurate well placement. This accurate directional drilling delivers a low tortuosity path to reduce torque demand in the following sections. This increases the drilling rate and reduces stress on equipment. 

Embedded in a remote center located in the operator’s office, Halliburton personnel can attain a level of proximity that fosters seamless collaboration and information exchange. This close connection allows real-time communication with partners from the client group to enable rapid decision-making about drilling operations.

Results

The adoption of automated remote drilling techniques in the Brazilian presalt environment offered numerous advantages. Key benefits included increased efficiency, reduced operational costs, enhanced safety, and minimized environmental impact. LOGIX® automated trajectory control and improved wellbore tortuosity, and ROP across multiple projects in this environment. 

Further research and development of automated drilling technology continues to enhance the efficiency and effectiveness of presalt drilling operations to help with the sustainable exploration of this valuable resource. 

Remote operation decreases the need for onboard personnel because it allows operators to monitor and manage multiple tasks. The remote center established by Halliburton in the operator’s office has improved communication and collaboration processes. The enhanced accessibility among all parties, coupled with the efficient exchange of lessons learned, has expedited drilling decision-making and fortified partnerships.