Collaborative Well Planning and Optimization of Well Placement: A Case Study From Mangala Field Development, Rajasthan India

Rosland, Habil Akram; Peytchev, Peter; Sarkar, Shibatosh; Mukherjee, Supriya; Govind, Balu; Malik, Sumit D.

doi:10.2118/127344-ms

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…2. The technology system would have also included a multi-tier system application that is capable of exhibiting and maneuvering any subsurface information or engineering data objects, while defining the criteria when planning new wells by way of its integrated wellplanning module (Rosland et al 2010). …”

Section: Technology Identificationmentioning

confidence: 99%

Integrated Drilling and Completion Data Workflow into a Strategic Data Management Solution: An Implementation Case Study from Cairn Energy India

Peytchev¹,

Thummar²,

Singhal

et al. 2011

All Days

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In 2008, Cairn Energy India, Ltd. (CEIL) recognized the importance of tackling unstructured data across the drilling and petroleum engineering group, where significant use of a proper workflow and a state-of-the-art data management application system have been promoted within the organization. The project rollout was aimed to achieve absolute integration of drilling and completion information into one centralized database system.Over the last 10 years, the drilling and well services group has used the knowledge management system to achieve targeted maturity involving the conversion of a large volume of data into a reliable, yet simple, synchronized and structured data form. Collaboration between departments and vendor's application was needed for the CEIL process to remain effective following the company's aggressive growth.This system was initially designed to generate schematics, reports, and queries. A specific workflow and process culture was required to ensure that all critical data, including operation-related information, are being captured meticulously during the lifecycle of a well.Factual integration between the drilling and completion system was only possible after combining the thousands of reports into a centralized data management system. CEIL initiated the data management project to achieve reliable and accessible information across this domain, thus improving the group's productivity and operational efficiency.This integration further facilitated the common access point for engineering personnel. In addition, it minimized the data entry workflow and effective use of decisive historical data. Data, once recorded, can be used by multiple applications intended for engineering, well-planning analysis, and operational monitoring. This integration has improved data quality and facilitated timely and cost-effective decision making. This paper explains the methodology, strategy, and technology implemented in the data management project. IntroductionData are critical business information that support the transactional and analytical operations of every company. Data management is a combination of applications and technologies that consolidates business processes and analytical tools, thus the implementation will reflect significant improvements in operational efficiency, reporting, and fact-based, yet immediate, decision making. Drilling and petroleum data management is one of the biggest challenges for oil and gas operators. Prior to implementation of the strategic data management system by Cairn Energy India Pty, Ltd. (CEIL), data were unstructured and stored in different locations. Cairn realized a need for a strategic data management system that could work as a centralized database for their Drilling and Petroleum Engineering workforce. The main objective of the project was to reduce data duplicity and provide easy access to quality data in different engineering workflows intended for a collaborative, multi-disciplinary environment.Sorting through daily operation data recorded in multiple systems in di...

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Section: Technology Identificationmentioning

confidence: 99%

Integrated Drilling and Completion Data Workflow into a Strategic Data Management Solution: An Implementation Case Study from Cairn Energy India

Peytchev¹,

Thummar²,

Singhal

et al. 2011

All Days

Self Cite

View full text Add to dashboard Cite

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“…Fatehgarh group has five formation layers and each well is planned to be drilled and produce from one geological target on a given sub-unit zone. 1 The top hole section was drilled with motor, kicked off from vertical, nudge for anti collision mitigation if required, and build and/or turn to final inclination. After setting the casing, continue drilling intermediate/production hole which is mainly holding tangent until until the target is hit and expected depth is reached.…”

Section: Case Study: Inclined Wellsmentioning

confidence: 99%

“…hole section. 1 Planning of those horizontal wells in this field are very challenging due to high uncertainty of numerous faults in the area and closely spaced wells. Due to high uncertainty as high as 20m in TVD the provision of pilot holes were planned & considered for the horizontal well placement.…”

Section: -1/4" Boreholementioning

confidence: 99%

Utilization of Rotary Steerable Technology for Field Development and Drilling Shallow-TVD Horizontal Wells

Peytchev¹,

Crighton²,

Upadhyay³

et al. 2010

IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition

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Cairn Energy India Private Limited (CEIL) started development in Mangala field with aggressive target of drilling 60-70 wells/year (7days/well). Therefore, the focus was to reach high drilling efficiency which will ultimately reduce the well cost. Some of the challenges faced were placing wells in greatly faulted zones, high uncertainty in shallow TVD reservoir, requirement of tangent for installation of ESP, smooth hole to avoid problem running screen and collision risk due to closely spaced wells. RSS was generally used only in complex, high-cost offshore projects where the savings realized were significant. The industry has been slower to adopt the use of RSS for onshore directional drilling applications however CEIL took a step ahead by deploying RSS for Mangala field development. RSS was utilized in directional wells to optimize drilling performance and deliver smoother hole profile. Advanced LWD services such as bed boundary detection tool along with RSS have brought value in successful landing and placement of horizontal wells in the best reservoir strata. Application of near-bit gamma ray and other LWD measurements to identify the top of reservoir as early as possible has helped to avoid the requirement of drilling pilot holes. This paper discusses such application in detail and presents its benefits.The result was a noticeable improvement in well delivery time, reduced drilling cost, and improved hole quality. This paper compares the drilling performances with PDM vs RSS in the same field and presents the lessons learnt in the process of field development. RSS delivered less tortuous hole which result in a problem-free liner or screen run. Hole cleaning was improved which allowed to drill at faster ROP without taking risk of well complication. Time versus Depth analysis clearly indicated that RSS was both technically and economically, a sound approach for drilling the wells in Mangala field. This paper showcases a case study where RSS application proven to be cost-effective solution even in low-margin onshore field development. Mangala Field OverviewThe Mangala Field is located in the northern Barmer Basin of Rajasthan state, India. The basin is a Tertiary rift, predominantly consisting of Palaeocene-Eocene sediments. The Mangala Field was discovered in January 2004 with Mangala-1 then appraised by drilling of 6 more wells, including acquisition of a 3D seismic survey, and major data gathering efforts involving core, fluids, and well testing 1 .The main reservoir unit in the Mangala Field is the Fatehgarh Group, consisting of interbedded sands and shales. The group has been sub-divided into the Lower Fatehgarh Formation dominated by well-connected sheetflood and braided channel sands, and the Upper Fatehgarh Formation dominated by sinuous, meandering, fluvial channel sands. Five reservoir units are recognized in the Mangala Field, named FM1-FM5 from the top downwards. FM1 and FM2 comprise the Upper Fatehgarh Formation and FM3, FM4 and FM5 form the Lower Fatehgarh Formation. The overlying Barmer Hill Form...

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Rapid Rig Design – A Cost Effective Innovative Design For Field Development

Peytchev¹,

Crighton²,

Upadhyay

et al. 2011

All Days

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During the exploration and appraisal phase in the RJ-ON-90/1 block, operated by Cairn Energy India in the Thar Desert of Rajasthan, India, the company discovered numerous oil fields in the Barmer Basin spread over a huge area. The emphasis was to develop these fields with significant savings in both land and infrastructure costs while minimizing environmental impacts. A compact rig design coupled with a multi-well pad concept was the chosen solution.The paper presents use of an innovative onshore pad drilling system which was implemented via a custom built Rapid Rig technology that allows fast, efficient drilling operations on multi-slot pads to enhance the success of the extensive drilling campaign for these oilfields.The rigs are highly mobile, skid mounted, electrically driven 1,000HP "Super singles". They were custom built in Houston for Cairn to deploy in Rajasthan for the drilling of more than 350 development wells. The Rapid Rig's small footprint and self deploying design allows for ease of transport and faster onsite rig-up. These rigs are the first of their kind with wheels attached to the base structure. Unlike conventional rigs, these purpose-built rigs move easily and quickly (4hrs) between pad slots without rigging down, which in turn cuts well construction time and delivers greater efficiency at reduced costs. The fully automated rig floor coupled with an innovative pipe handling system reduces crew size and accident exposure (zero pipe handling LTI's) while providing a more comfortable and efficient work environment, leading to a substantial reduction in well construction time (1,200-1,500m wells are drilled in 7 to 9 days). The paper will explain detailed aspects of the custom made Rapid Rig design and its implementation including the pad drilling concept. It will also demonstrate how this significantly improved the well delivery, contributing to substantial cost and well construction savings without compromising HSE standards.

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Collaborative Well Planning and Optimization of Well Placement: A Case Study From Mangala Field Development, Rajasthan India

Cited by 7 publications

References 8 publications

Integrated Drilling and Completion Data Workflow into a Strategic Data Management Solution: An Implementation Case Study from Cairn Energy India

Integrated Drilling and Completion Data Workflow into a Strategic Data Management Solution: An Implementation Case Study from Cairn Energy India

Utilization of Rotary Steerable Technology for Field Development and Drilling Shallow-TVD Horizontal Wells

Rapid Rig Design – A Cost Effective Innovative Design For Field Development

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