Possible solution to mitigate well stability and lost circulation problems in Sirikit Oilfield | |
| Author | Tattep Thiantong |
| Call Number | AIT Thesis no.OTM-13-11 |
| Subject(s) | Oil fields Sirikit Oilfield (Thailand) Oil fields--Risk assessment--Thailand |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Offshore Technology and Management, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. OTM-13-11 |
| Abstract | Lost circulation and Well stability problems are the most classic drilling related problems in oil and gas industry. The industry spend multi-billion US dollar to combat those problems every years. Therefore, finding the way to mitigate the problems and non-productive time related to it would be the challenge for drilling company. To done so, study about field characteristic for interested field would be required since there are many method to mitigate the problems were developed along with the industry history. This study aim to propose possible solutions to mitigate lost circulation and well stability problems using Sirikit oil field as a based case study. With a unique characteristic of rock formation in Sirikit oilfield which have relatively high pressure unconventional unconsolidated sand reservoir on top of sensitive, brittle shale formation which act as a seal for the main reservoir formation below. The main reservoir formation below the main seal is unconsolidated high permeability sand stone which continuously produce for very long period. With this character, drilling operation tend to encounter lost circulation problems in the lower reservoir while face well stability problems caused by upper reservoir and shale formation. Possible preventive and corrective solutions will be proposed based on collected data form field operator, PTTEP. However, to choose whether to deploy preventive solution or corrective action required tools to assist decision making progress such as risk assessment matrix and cost comparison analysis. With help from statistical data use to generated risk assessment matrix and cost comparison analysis, this study would suggest the solution to mitigate lost circulation, well stability problems and cost of non productive time related to them based on collected data. |
| Year | 2013 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. OTM-13-11 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Offshore Technology and Management (OTM) |
| Chairperson(s) | Chiu, Gregory L.F.;Sarunphong Articharte |
| Examination Committee(s) | Boswell, Laurie F. |
| Scholarship Donor(s) | Royal Th ai Government Fellowship |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2013 |