In 2002, TOTAL E&P management requested all the different divisions to implement actions plans to improve the HSE performance of the company. The purpose of the paper is to present and discuss the HSE Performance of the drilling activity during this 3 years period through the examples of 2 different affiliates in Indonesia and Gabon. TOTAL Indonesia has gone through an impressive increase of its activity (100 wells drilled per year) over the last 3 years, with the arrival of 5 drilling units (total of 9 drilling units on relatively long term contracts). On the other hand, TOTAL Gabon is a mature affiliate, trying to extend the production plateau by performing re-entries on existing production installations during short term drilling campaigns. The first part of the paper will present the particularities of the drilling activity on the different fields, the HSE context and organization, and the objectives set by the management. The second part will establish an interesting comparison between the road accidents statistics in France and the accidents on the Indonesian drilling units. It will highlight the existence of the well known plateau which is reached and how it is reached. A selection of site examples (both from the previously mentioned Asian and African affiliates) will illustrate the various statements, and the distinction between hardware improvements (technical modifications, new equipment...) and soft improvements (procedures, safety meetings, hazards observation programs...) will be established. The conclusion will discuss the fundamental question of the continuous improvement of the HSE Performance, in particular how to go beyond the plateau. Based on the analysis of this 3 years long intensive drilling period, it will present the 4 achievable objectives that should be given to an individual rig in a context where a "Zero Accident" workplace is the ultimate goal, but unfortunately still a concept. Introduction The drilling industry has evolved a lot in the last forty years, not only from a technological point of view but also from an HSE point of view. Nowadays, it is a common practice to drill extended reach wells or long horizontal drains navigated in thin reservoirs with high accuracy, not even talking about exotic trajectories necessary to drill on congested declining fields; however, an equally impressive progress was made on the protection of the workforce, thanks to the change of mentality and the ever growing legal environment. A 21st century drilling site, whether offshore or onshore, has nothing to do with what used to be the standard forty years ago: the impact on the environment is taken care of right at the pre-engineering phase and the protection of personnel on-site during the whole life of the drilling project is of highest importance.
Deliverability of a field shall be reflected through its hydrocarbon production. In offshore fields, the backbone for stability of production comes from drilling and well intervention operations. One makes new wells while the other maintains existing wells to minimize impact of the decline. Nevertheless, these operations may become a double-edge sword for production. For example, rig activities that shut in existing wells in an offshore platform create production loss of that field. This situation may be ludicrous, but it is a dire consequence for mature/sensitive wells, in which potential loss might be proportional to shut in duration required. This ironic situation prompts two (2) challenges which are to maintain production existing wells and to start production of new wells while respecting the safety aspect in operation. Thus, in order to overcome these challenges, an integrated optimization of SIMOPS between drilling, well intervention and production is ushered in X-1 drilling campaign where production activities continue and well intervention operates under cantilever of the jackup rig during the whole drilling campaign.PT Pertamina Hulu Mahakam (PHM) delivers one well in offshore area between 17-25 days in average, depending on the well type. As a continuous saving initiative process, every possible scenario was exercise to optimize cost and three (3) objectives were identified for cost optimization which are to reduce the shortfall of existing wells by re-perforation to revive well, optimize rig duration at respective wells safely through offline well intervention activities and accelerate the production of new wells. As a result, all three (3) objectives had been achieved during the complex campaign with deliverability including no LTI during operation, three (3) new wells , two (2) workover and sidetracked wells with longer open hole record at X-1, offline well intervention activities (perforation) of existing well at X-1, offline production activities to revive existing wells at X-1 through offload to atmosphere and offline well connection activities for new wells (earlier). In the final analysis, integrated SIMOPS optimization generates production gain and enhances cost effectiveness safely. This paper shall provide the methodology to design and prepare an integrated SIMOPS as well as the corresponding result and lesson learnt.
Company operated 7 rigs during the period on 2011 – 2016. The drilling and completion operation are categorized as offshore activities by using submerge swamp and jack up rigs. Approximately 100 wells were drilled with 4 million man hours in average within a year. The challenges are the high proportion of direct involvement of human resources with equipment and materials, turnover of personnel and various educational background levels of the workers. In 2014, there were 11 recordable injuries where 4 of them are Lost Time Injuries (LTI). Based on the incident analysis, the root causes are mainly related to inadequate supervision and leadership. In order to enhance and maintain the safety performance, there are two categories of intiative i.e. HSE culture / communication in order to maintain personnel awareness on safetyAudits and inspection in order to monitor and control the operation The Rig Action List (RAL) is monitored to ensure no compliance and conformity issues. The Drilling Manager performs regular reviews planning, action lists, objectives and targets as part of the HSE Management System implementation. Well Construction (WLC) Division reached 2.5 years without Lost Time Injury (LTI). The safety performance record is an outstanding result, considering the magnitude of the drilling operation on site.
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