By Fikri Kuchuk, Florian Hollaender and Mustafa Onur (Eds.)

This reference provides a complete description of move via porous media and recommendations to strain diffusion difficulties in homogenous, layered, and heterogeneous reservoirs. It covers the basics of interpretation strategies for formation tester strain gradients, and pretests, multiprobe and packer strain brief assessments, together with spinoff, convolution, and pressure-rate and pressure-pressure deconvolution. Emphasis is put on the greatest chance process that allows one to estimate errors variances in strain info besides the unknown formation parameters.Serves as a coaching handbook for geologists, petrophysicists, and reservoir engineers on formation and strain brief testingOffers interpretation recommendations for fast program within the fieldProvides unique insurance of pretests, multiprobe and packer strain temporary checks, together with spinoff, convolution, and pressure-rate and pressure-pressure deconvolution

Show description

Read or Download Pressure Transient Formation and Well Testing PDF

Similar energy & mining books

Beyond the Boundaries: Life and Landscape at the Lake Superior Copper Mines, 1840-1875

Spanning the years 1840-1875, past the limits makes a speciality of the payment of higher Michigan's Keweenaw Peninsula, telling the tale of reluctant pioneers who tried to set up an honest degree of convenience, keep watch over, and defense in what was once in lots of methods a antagonistic setting. relocating past the technological heritage of the interval present in his past e-book Cradle to the Grave: existence, paintings, and loss of life on the Lake enhanced Copper Mines (OUP 1991), Lankton right here specializes in the folks of this zone and the way the copper mining affected their day-by-day lives.

A Way of Work and a Way of Life: Coal Mining in Thurber, Texas, 1888-1926 (Texas A&M Southwestern Studies)

The coal mine represented even more than a fashion of constructing a dwelling to the miners of Thurber, Texas, within the overdue 19th and early 20th centuries-it represented a lifestyle. Coal mining ruled Thurber's paintings lifestyles, and miners ruled its social lifestyles. the massive immigrant inhabitants that crammed the mines in Thurber represented greater than a dozen countries, which lent a strong point to this Texas city.

The Oil and Gas Industries

Fluctuations in offer and insist, thoughts in know-how, and altering laws have dramatically replaced the oil and gasoline industries in recent times. This lawsuits explains the adjustments and explores their implications for the paintings of analysts and different funding execs.

Aluminum Ore: The Political Economy of the Global Bauxite Industry

Because the key part in aluminum construction, bauxite has develop into essentially the most vital minerals of the final 100 years. to a few it introduced financial and political virtue, yet for lots of others, its improvement left a legacy of exploitation. Aluminum Ore explores the historical past of bauxite within the 20th century and the worldwide forces that this historical past represents, from its strategic improvement within the First international battle to its position within the globalization of markets as businesses from the northern hemisphere vied for the assets of the south.

Extra info for Pressure Transient Formation and Well Testing

Example text

It should also be pointed out that during the production profiling the flowing wellbore pressure was not measured at a stationary point in the wellbore. After a total of 6-hr production, the PLT was stationed at the same location as the first drawdown and acquired wellbore pressure about 30 minutes before the start of the buildup. 17, due to the rate change during the second drawdown. 16. 17. 06 psi for the buildup. 01 psi, although it could have changed with time for some of the sensors. The difference in spread of pressure measurements for the drawdown test and the subsequent buildup must be due to external noise.

Therefore, when the production or injection rate is changed from a nonzero value to a different value, including from zero to another value or from a nonzero value to zero at a well, it creates pressure diffusion in the reservoir; monitoring and measuring the diffusion at any point in the system is called pressure transient testing. Thus, depending on the disturbance, sink or source type, well tests are also divided as: (1) Production test and (2) Injection test. If the production or injection rate is changed to zero from a nonzero value, the production test is called a buildup test and the injection test is called falloff.

All these process are hydraulically controlled from the surface. Unlike formation testers, with one downhole trip per test, the repeat formation testers can successively test a number of zones in a single downhole trip without bringing the tool to surface. 11 Seal valve (to upper sample chamber) Schematic of a repeat formation tester, after Schultz et al. (1975). 12 The front view of a single probe and packer element (a) and in a set position against the formation (b), after Akkurt et al. (2007).

Download PDF sample

Rated 4.46 of 5 – based on 20 votes