Case Studies

Case Study: Boots & Coots Successfully Controls Well Release in Remote Field

Team solves challenging logistics to control gas release prior to well abandonment Challenge – The operator contacted Boots & Coots after a gas leak through one leg of the completion string was reported. Well control specialists were immediately mobilized to the location, and they performed the initial site inspection while simultaneously organizing a well control response plan for the incident. The main obstacle for organizing...

Case Study: SentinelCem™ Cement Cures Losses in Iraq Wells

Cement treatment saves operators millions of dollars annually Challenge – For years, operators drilling in the Rumaila, Zubair, and West Qurna fields in southern Iraq have routinely experienced severe and even total circulation losses at depths of 450–750 meters (1,476–2,461 feet). Underlying these fields is the karstified dolomite of the Dammam Formation, which has geological characteristics that include caverns, vugs, and large fractures....

Case Study: Operator Achieves More Reservoir Insight Using a New Azimuthal Gamma Ray Service

Azimuthal gamma-ray images uncover stratigraphic features in a seemingly featureless unconventional reservoir Challenge – Unconventional resources are often costly to produce as a result of the need for hydraulic fracturing. In order for these shale plays to be considered economical, drilling costs must be kept to a minimum, and many operators drill and geosteer wells with only average gamma-ray measurements obtained from a...

Case Study: PetroGuard® Openhole Shunt System Ensures Gravel-Pack Success for TOTAL’s Four-Well Batch Completion

Shunt contributed to 100 percent pack efficiency despite challenging openhole conditions CHALLENGE – TOTAL performed several internal studies to determine the most appropriate lower completion solution for its wells. It was identified early on that the four-well campaign required openhole gravel packs to successfully retain and control the formation sands. Additionally, hydraulic simulations were performed and sensitivities were used to assess the potential...

Case Study: Well Construction Performance Shaves More Than Eight Days Off of Plan in Rumaila Field

Solution optimizes drilling time while lowering costs CHALLENGE – Halliburton was challenged to design, drill, and deliver wells in the Rumaila field – and to do this safely, efficiently, on time, and within the allocated budget. The geology in the field presented significant obstacles, including losses within naturally vuggy or fractured formations, challenges of drilling through highly reactive shale sequences with borehole instability...

Case Study: Operator Successfully Runs 5 ¾-inch Slim-Hole Drilling Operation with Geo-Pilot® RSS System

Innovative solution drills one of the longest slim sections (5,500 feet) on Norwegian Continental Shelf CHALLENGE – In the previous operation of this ERD well, an expandable liner had been set to address formation instability. This expandable liner created a challenge, since the liner’s internal diameter was only 5.795 inches, which is extremely narrow. The wellbore’s narrow opening required a slim-version drill bit...

Case Study: Illusion® Frac Plug Helps Operator Save $200,000

All 15 plugs dissolved, removing the need for coiled tubing millout CHALLENGE – In an ongoing effort to reduce the risks and costs incurred when completing a well using the plug-and-perforate method, the operator was primarily looking for ways to remove the need for milling out composite plugs. As an added challenge, the customer’s objective was to maintain the same parameters during the...

Case Study: Boots & Coots Regains Control of Platform After Five-Well Blowout

Team maintains stability of 30-well platform, contains blowouts, and safely caps wells CHALLENGE – The main concern was to maintain the stability of the platform, which was rapidly deteriorating due to prolonged heat exposure. Fortunately, some of the wells were producing via a gas lift process and, after the initial explosion, the operation could be shut down, extinguishing the fires on these wells....

Case Study: Operator Saves USD 7.2 Million with Improved Drilling Performance and Sets New Field Benchmark

DES helps operator reduce drilling with potential savings of USD 115 million across field CHALLENGE – These shallow-water wells were typically drilled in about 93–105 days because of many factors, such as trajectory management, bit selection, limited hole cleaning, and bit hydraulic power design. Thus, the rate of penetration (ROP) and the additional time spent for hole cleaning were not optimal. To keep...

Case Study: Mobile Testing Package Enables Early Production

Mobile express surface well testing system helps operator achieve production goals in new fields CHALLENGE – Parnaíba Gás Natural S.A. operates in Maranhão State and is responsible for about 10 percent of all natural gas produced in Brazil. While some of its fields are equipped with permanent measuring equipment, some of its remote wells are currently using the mobile express surface well testing...

Subscribe

Sign up to receive each new post via email.



Delivered by FeedBurner

Recent Posts

Archives