Pipe Volume Calculation

Pembina Pipeline Corporation 2011 second quarter results

Strong performance driven by industry activity

All financial figures are in Canadian dollars unless noted otherwise. This news release contains forward-looking statements and information that are based on Pembina Pipeline Corporation's current expectations, estimates, projections and assumptions in light of its experience and its perception of historical trends. Actual results may differ materially from those expressed or implied by these forward-looking statements. Please see page 6 for more information. All financial information, including comparative figures pertaining to Pembina's 2010 results, has been prepared in accordance with Canadian generally accepted accounting principles ("GAAP"), using accounting policies within the framework of International Financial Reporting Standards ("IFRS"). This news release also refers to financial measures that are not defined by GAAP. For more information about these non-GAAP measures please see page 5.

(see "Non-GAAP Measures" on page 5).

During the second quarter of 2011, Pembina has increased its growth plans, to complete construction of its heavy oil pipeline Nipisi ("Nipisi Pipeline") and Mitsue pipeline condensate ("Mitsue Pipeline") (collectively " Nipisi and Mitsue Pipeline "). In addition, at the date hereof, the Company is nearing completion of its ease Musreau Deep Cut, which, with the Nipisi and Mitsue pipeline, expected to boost cash flow from operating activities and profit later 2011 when fully operational.

"Pembina has a strong background to identify and implement projects that improve our financial results and operations," said Bob Michaleski, President of the Pembina Institute and Chief Executive Officer. "Pipelines and Mitsue are Nipisi Another clear example of the ability of Pembina to improve our bottom line by completing and delivering on projects that are on the flow of time, under budget and in a manner that respects the environment and communities in which we operate."

Net purchases of products, in the second quarter of 2011 increased to that it has completed a major step in its growth strategy with the commissioning and the start of its Nipisi and Mitsue pipeline, which will service Pelican Lake and the Peace River heavy oil regions of Alberta.

The pipeline is a new Nipisi 190 km ("km"), a heavy oil pipeline with a nominal capacity of 100,000 barrels per day ("bpd") that will transport diluted heavy oil, north of Great Slave Lake South Pembina Pipeline existing and Swan Hills, Alberta, for further transport or processing.

Kick Tolerance (Productivity) | Mac Apps

The Kick Tolerance provides to drilling engineers, chemists, technicians, students and others professionals in the Oil & Gas industry a productivity tool helpful in drilling operation (well control) and planning phase of oil wells. This version is completely interactive and allows users to define a wide variety of parameters for oil wells, save data to files. This application deals with two concepts: 1- Kick Tolerance as Maximum Pore Gradient; 2- Kick Tolerance as Maximum Kick Volume. Both with graphical analyzes. For both the concepts, the calculations uses the Fracture Gradient defined in "Well Configuration -> Gradients" views. 1. For KT as Maximum Pore Equiv Weight - Plot KT x Maximum Kick Volume KT (Maximum Pore Equiv Weight) = mudWeight + (casingShoe/wellDepth) * (Fract Equiv Weight - mudWeight) - (KickLength/wellDepth) * (mudWeight - kickDensity); => Known the Maximum Kick Volume, find the KT as the Maximum Pore Gradient; 2. For KT as Maximum Pit Gain Volume: Plot KI = the difference ( Pore Equiv Weight - Mud Weight ) versus Maximum Kick Volume (Pit Gain) KI (Pore Equiv Weight - Mud Weight) = (casingShoe/wellDepth) * (Fract Equiv Weight - mudWeight) - (KickLength/wellDepth) * (mudWeight - kickDensity); => Known the difference (Pore Equiv Weight - Mud Weight), find the Kick Tolerance as Maximum Kick Volume. Calculation of the Kick Tolerance by this App:1. Hmax below the casing shoe = (MaxSICP - SIDPP) / (0.052 x (ρmud-ρkick)); - MaxSICP = 0.052 x (ρfracture - ρmud) x CasingShoeTVD - SIDPP = 0.052 x KI x Well TVD2. Calculate V1 = Maximum Volume annulus bellow the casing shoe;3. Calculate V2 at bottom = (V1 x Pfracture) / Ppore;4. Calculate V3 = Volume annulus at bottom using Hmax;The kick tolerance is the smaller of the two volumes between V2 and V3.This KT is showed in the Graph: KI versus KT Volume.Others features: 1) Calculations of the Choke Line Effect; 2) Included the formulas; 3) Ability to work with multiple files (save / load data file); 4) Pop-up view to alert user about invalid values; 5) Views with calculations of capacities, volumes and more.

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