Reverse Engineering: A New Well Monitoring and Analysis Methodology Approaching Playing-Back Drill-Rate Tests in Real-Time for Drilling Optimization

Abstract

Different researches have been developed during the past years aiming addressing challenges still faced in petroleum exploration. Rate of penetration and specific energy studies have been the main focuses in trying to boost operational efficiency. The combination of both techniques accomplished with a preoperational test (drill-rate test) may allow as a new trending tool the best side of the drillability optimization to take place. Further, by having these implemented in real-time, an interesting methodology result in seeing the penetrating processes as a step-by-step where drilling mechanics parameters can be more dynamically adjusted. Thus, the main focus of this paper is to address a combination of rate of penetration together with a specific energy formulation in parallel with a possible dynamic and real-time drill-rate test plotted graphs for sake of the drilling optimization enhancement.

Conception of a Web Operation System for Processing Petroleum Related Drilling Data: A Focus on Pre-Salt Real-Time Automation and Optimization

“…UML is a very broad scope covering a large set of application domains, which can have 13 (thirteen) varieties for model development [6]. And for a Web-based System modelling, it is proposed to use some specifies such as: Use Case Diagram, Class Diagram and Sequence Diagram [5]. In this context, these have been the main reference for developing it, having the related database modeled with Entity Relation Diagram (ERD).…”

“…The Use Case Diagram define the functionality of the system in the user's perspective, representing its boundaries, also detailing the complexity of the system [5]. Figure 1 details the representation of the system by the user and administrator's view, being the administrator functionalities to maintain the platform control over open registered information and user control.…”

“…The Class Diagram allows modeling a static system view, which is considerably important for object-oriented systems modelling and design, representing the multiplicity relationships between the different classes among the scheme [5]…”

“…The Sequence Diagram represents the flow of the events, messages and interactions between the objects of a system in two dimensions in play [5]- [11]. Figure 3 represents details in terms of system's functionalities responding to End User's requests.…”

“…This test is done aiming "optimization" of the drilling rate and thus, reducing the operating time, resulting in cost savings. A drilling activity in the Brazilian Pre-salt field can reach around US $1.3 million as a daily cost [5], which makes the proposed computational tool presented in this paper very appropriate for this scenario.…”