.... Initial Remediation Efforts Immediately after the hydrate blockage was identified, actions were implemented to dissociate the plug. Fortunately, its presence did not interfere with Vega fulfilling the production target due to Vega being export facility limited in production. The C and N wells were...

... debris plug inside the wellhead. A pressure study established that the reservoir may have re-charged to 2,200 psi. An alternative pressure controlled well re-entry method was required to safely re-enter, tie-back the well to surface with 16-in. high pressure riser, install BOP while preventing gas from...

... plug holds pressure and there is also no fluid leak and finally natural shale barriers are active and create a sufficient barrier. Currently, technology is in its 10 th generation, and since the IRIS tests have been used in many wells, covering both onshore and offshore oil and gas wells and wells...

... Abstract This paper discusses the benefits of early plug and lubricate (P&L) of shut-in wells for Brent Charlie as part of the journey into the ultra-late life phase of the field. The Brent Charlie is the last producing platform on the Brent Field which is currently in its decommissioning...

..., and the behavior and stability of the well before and after the intervention operations. real time system Completion Installation and Operations inflow test module differential plug well decommissioning suspension Well Condition Upstream Oil & Gas receiver requirement bv receiver operator...

... Abstract This paper details the deployment of Spectral Noise logging confirming barriers in a complex abandonment of an onshore field in the Netherlands to fulfil regulatory requirements and to support sustainable abandonment. After initial plug and abandonment (P&A) activities on the main...

... Abstract When a well reaches the end of its life-cycle, it is permanently plugged and abandoned. Since the first discovery in 1966 on the Norwegian Continental Shelf (NCS) till October 2014 nearly 5496 wells have been drilled. Of these wells, 3978 are development and 1518 are exploration wells...

... of plasma milling have been analyzed. Results and Observations Rate of penetration Abstract Plug and Abandonment (P&A) is the largest category in Decommissioning expenditures, representing 40-44 percent of the total investment that basically comes as mandatory cost with no expected return...

... verification of Barriers is needed, especially when plugging and abandoning a well Reference – Johnny Gundersen, PSA However, according to a PSA survey from 2013–2014, there is room for improvement. They found that 59% of the platform wells considered had barrier issues; hence the demand...

... the sand in place. Several onshore tests with frac sand and colloidal silica gel showed that it was possible to displace the uncured gel into a sand/water mixture and get the gel to set up. The resulting leak rate through a gel/sand plug at high differential pressure was low, and the sand was successfully...

... However, of more interest to this work is that the drillers are typically able to drill longer laterals than can be serviced with current well-intervention techniques. An example in a long lateral would be when the plug-and-perf process is used to perform the stimulation treatments...

... Abstract A technological breakthrough within the application of wireline technology has been achieved. In August 2008, on an offshore platform in the Norwegian Continental Shelf, a wireline tractor and a new wireline milling system were used to mill and remove a permanent bridge plug at 4,147...

... objective Upstream Oil & Gas communication cement job flotation drilling operation completion plug multilateral junction spe 123849 reservoir mtm port collar upper captain sand formation society of petroleum engineers lower completion isolation port collar whipstock stage cementation...

... slurry designed for the circulating temperature at the bottom of the long column will sometimes fail to set at the low temperatures at the top of the cement column. These results in rig nonproductive time and in certain cases can lead to well integrity problems. While setting unplanned kickoff plugs...

... Abstract Natural or induced fractures in a chalk reservoir can significantly reduce the recovery from a field. Therefore, plugging of fractures with a wide range of materials has been investigated over the years. Calcium carbonate, being the main constituent of the reservoir itself...

..., completely effective, water shutoff tool. These packers use expanding rubber around the packer that expands to seal the annulus. When expanded, a permanent seal is created, regardless of whether the packer has been run as a straddle or as a plug. The packers can be used in open and cased-hole applications...

.... An innovative technique has been developed to en-able all the well casing annuli to be permanently sealed in a single operation. A simulated well aban-donment using this technique is planned for the sum-mer of 1995 and the results will be presented together with time analysis and cost estimates. plug...

... preparation drilling spool body riser completion equipment contractor completion operation plug subsea tree high pressure cap template upstream oil & gas stab plate completion installation and operations hanger valve spool tree Introduction The Johnston Gas Field lies in blocks 43...

... this type of operation to be reliably performed through tubing. BRIDGE PLUG DEVELOPMENT ABSTRACT The development of through-tubing retrievable bridge plugs suitable for the monobore type completions favoured in the North Sea provides a clear example of completion manufacturers fulfilling a need...

... would be of the order of 3.5". Any requirement for serious work across the perforations would inevitably call for the pulling of the completion string — in other words, high cost well intervention. (Inflatable bridge plugs might have some utility but their pressure rating would probably not be great...