Treatment of a well designed to enhance oil and gas production or recovery by. It has played an important role in the development of oil and gas wells, ensuring good economic returns cipolla 2003. Hydraulic fracturing injection of fluid at high pressure, sufficient to fracture reservoir rock acid matrix. A treatment performed to restore or enhance the productivity of a well. The low ph glda based fluid has been especially designed for high temperature oil well. Briefing on offshore fracking and other well stimulation. All of these various well stimulation techniques can improve the output of an oil or gas field by increasing the hydrocarbon flow into and up the bore. Spatial grouping of producers is used to eliminate the bias introduced into the. General screening criteria for shale gas reservoirs and production data analysis of barnett shale.
He made major contributions to the areas of fluid mechanics, transport phenomena, surface phenomena, optimization, variational principles, oilwell stimulation. He is the former founder, ceo and managing partner of mgm northstar, a company actuated solely on his expertise and products, and has spent over 35 years in the oil and gas industry designing. The need for well stimulation arises from either one of the following conditions. There is currently no wellfounded methodology to design such well treatments.
Oil well stimulation as one of these methods includes a variety of operations that performed to improve productivity of the well. Oil well stimulation by robert schechter software used. On the application of well stimulation method in improvement. Well stimulation fluid is 99% water and sand, supplemented with chemicals found in many household products. Thus hydrogen peroxide can be used in a variety of ways to recover oil. Various proppant types are used including sand, resincoated sand and manmade ceramics depending on the permeability or grain strength needed. Cyclic steam stimulation huffandpuff a well stimulation method this method is sometimes applied to heavy oil reservoirs to boost recovery during the primary production phase. Enhanced oil recovery, well workover and intervention, well completions, shale gas a treatment performed to restore or enhance the productivity of a well. The most commonly applied stimulation techniques are. How does well acidizing work to stimulate production. In addition it is well known that steam stimulation can result in formation cleanup in the vicinity of the well. Feasibility study of ultrasound for oil well stimulation. Well stimulation treatments, lesson 11 by petroleum extension service author isbn.
Pdf improving sandstone matrix stimulation of oil wells by. These reservoirs are formations of porous or fractured rock that the oil or gas is contained within. Stimulation is performed on a well to increase or restore production. Havard devold oil and gas production handbook an introduction. During this time it assists natural reservoir energy by thinning the oil so it will more easily move through the formation to the injectionproduction wells. To visualize the real potential of ultrasound in oil well stimulation, it is necessary to understand the wave phenomenon, its properties, the parameters that define its behavior, and its interaction with the propagation media.
Application areas drilling cementing snf has developed a wide range of polymers for waterbased drilling fluid systems. Fracturing treatments are performed above the fracture pressure of the reservoir formation and create a highly conductive flow path between the reservoir and the wellbore. It was not until 1859 that colonel edwin drake drilled the first successful oil well, with the sole purpose of finding oil. Corrosion mitigation of the oil well steels using organic. Acid stimulation needs to be carried out with a full knowledge of the history of the well to determine the best course of action since there have been many cases of acid stimulation causing temporary or permanent formation damage, including turning oilproducing wells into 100% water producers 3, which is probably due to the complex, heterogeneous nature of formation minerals. Well stimulation hydraulic fracturing hydrochloric acid. The bill would require the secretary of the natural resources agency, on or before january 1, 2015, to cause to be conducted, and completed, an independent scientific study on well stimulation treatments, including acid well stimulation and hydraulic. Oil well stimulation is the general term describing a variety of operations performed on a well to improve its productivity. During matrix acidizing the acids dissolve the sediments and mud solids within the pores that are.
Well stimulation matrix acidizing matrix acidizing is applied primarily to remove skin damage caused by drilling, completion, workover, wellkilling, or injection fluids, and by precipitation of scale deposits from produced or injected water. These polymers cover one, or several, drilling fluid requirements such. Stimulation treatments fall into two main groups, hydraulic fracturing treatments and matrix treatments. Initial work, on a novel approach to develop a methodology to be able to efficiently design and execute such treatments, will be discussed. Increase in the price of oil and gas during recent years have motivated oil and gas companies to focus on the methods that lead to increasing in the oil and gas production. This chapter discusses the purpose of oil well acidizing and acid types. Well stimulation is a technique used to improve the flow of oil or gas. Robert samuel schechter, a brilliant teacher, scholar, researcher, mentor, and leader, died october 8, 2014.
On the application of well stimulation method in improvement of oil. Productivity is measured in terms of productivity index or jo jo q p productivity index pi is defined a ratio of flow of oil per unit draw down p pr pwf. Let me try it in simple terms well stimulation mainly includes jobs like acid job, solvent job, hydro fracturing jobs etc. Read oil well stimulation by robert schechter for online ebook. Acidizing predates all other well stimulation techniques, including hydraulic fracturing which was not developed until the late 1940s.
Mark krupicka is president and ceo of lonestar stim products, llc. Hydraulic fracturing is a well stimulation technique where rock is fractured via pressurized liquid. Thousands of hegf well stimulations have been conducted over the course of the last few years thanks almost entirely to the efforts of dr. About this course this course is designed to provide delegates with a detailed and uptodate overview of the fluid mechanic fundamentals and operating practice of. Hydraulic fracturing, proppant, acid fracturingabstract. Currently he is one of the authors of the new spe monograph on acidizing. Well stimulation is a technique applied to enhance the production of oil or gas from the reservoir to the wellbore. Well stimulation is a well intervention performed on an oil or gas well to increase production by improving the flow of hydrocarbons from the reservoir into the well bore. Oil well stimulation, 1992, 602 pages, robert samuel. Near wellbore stimulation nws is achieved through matrix treatments that generally. October 1992 25 n mold of wormholes created by hcl in limestone from a central conduit. Pdf improving sandstone matrix stimulation of oil wells. May 16, 2020 all of these various well stimulation techniques can improve the output of an oil or gas field by increasing the hydrocarbon flow into and up the bore.
This book emphasizes the quantitative aspects of well stimulation. Introduction a geothermal resource is quite different from an oil. Cyclic steam stimulation huffandpuff a wellstimulation method this method is sometimes applied to heavyoil reservoirs to boost recovery during the primary production phase. This barcode number lets you verify that youre getting exactly the right version or edition of a. Historic development can be divided into four major phases. Treatment in oil and gas operators background oil and gas operators have used acid treatment acidizing to improve well productivity for almost 120 years. Oil well stimulation, robert samuel schechter, prentice hall, 1992, 09499342, 97809499340, 602 pages. Rock matrix stimulation is a method of enhancing well production or injection within a broad range. May 15, 2014 well stimulation matrix acidizing matrix acidizing is applied primarily to remove skin damage caused by drilling, completion, workover, well killing, or injection fluids, and by precipitation of scale deposits from produced or injected water. In addition he served as committee member and chaired a number of spe conferences and forums on well stimulation.
Acidization of oil well oil well stimulation, usually done with hot solutions of hydrochloric acid, may induce severe corrosion attack on production tubing, downhole tools and casing. It may contain gels, nitrified foam and carbon dioxide. What is the basic difference between well stimulation and. Justification for oil well stimulation the international. The most commonly applied stimulation techniques are acidizing and hydraulic fracturing. This practical course is designed for those involved in all aspects of well stimulation. Well stimulation is a technique used to improve the flow of oil or gas from the reservoir by dissolving the rock or creating new channels around the wellbore schechter 1992. Pdf positive correlation between historical oil production. Oil well stimulation with hydrogen peroxide onepetro.
Oil has been used for lighting purposes for many thousands of years. Part i studies the chemical, thermal, and mechanical properties of reservoir materials, as well as. Acid dissolves the rock as soon as it reaches the grain surface. Advances in oil and gas well stimulationmatrix acidizing, fracture acidizing. He made major contributions to the areas of fluid mechanics, transport phenomena. Unfortunately, it is not a very well understood technique and the simulations of the acidrock reactions are still under research shechter, 1992. Babasaheb ambedkar technological university, lonere chair of advisory committee. A preliminary screening and characterization of suitable. Course description the course will introduce the student to the discipline of well stimulation, taken to include matrix acidizing and hydraulic fracturing proppant and acid fracturing. A treatment or operation performed on an oil or gas well to increase. Part i studies the chemical, thermal, and mechanical properties of reservoir materials, as well as stimulation fluids. This bill would define, among other things, the terms well stimulation treatment, hydraulic fracturing, and hydraulic fracturing fluid. It may be done using a well stimulator structure or using off shore ships drilling vessels, also known as well stimulation vessels. Increase in the price of oil and gas during recent years have motivated oil and gas companies to.
Includes worked examples, exercises, and fundamental derivations throughout the narrative. William brian lunan esanda engineering objectives to learn the basics of hydraulic fracturing and acidizing, including the outline of actual operation and interpretation method. Scribd is the worlds largest social reading and publishing site. Acid stimulation needs to be carried out with a full knowledge of the history of the well to determine the best course of action since there have been many cases of acid stimulation causing temporary or permanent formation damage, including turning oil producing wells into 100% water producers 3, which is probably due to the complex, heterogeneous nature of formation minerals. In areas where oil is found in shallow reservoirs, seeps of crude oil or gas may naturally develop, and some oil could simply be collected from seepage or tar ponds. Historical development of well stimulation and hydraulic. He was spes distinguished lecturer on well stimulation in 2005. Matrix acidizing in carbonates aims to create new pathways for production rather than removing. Robert samuel schechter emphasizing the quantitative aspects of well simulation, and including worked examples and homework problems, this book covers a wide variety of methods of oil well simulation.
Those involved in the planning, execution, and evaluation of stimulation treatments need to have the background and training in the basics so better decisions can be made resulting in more gas down the line or oil in the tank. Schmidt at the gasgun, llc, and thus propellant well stimulation is taking on the character of a commodity service much like liquid nitroglycerine lng high explosive shooting was for many decades. Historically, we know the tales of eternal fires where oil and gas seeps ignited and burned. These mainly target issues like formation damage high skin due to mainly drillingcompletion fluid invasion to pore s. Thus 50% hydrogen peroxide can generate up to 2000 f. Improving sandstone matrix stimulation of oil wells by gas preconditioning article pdf available in petroleum science and technology 20 030434. One such solution is known as well stimulation schechter 1992. Course outline this high performance interactive work shop hpiws provides correct stimulating in a stepby.
Formation permeability is inadequate to allow the well to produce at rates high enough for the timely recovery of investment in drilling and completing the well the well has been completed in a formation having adequate permeability, but the formation near the wellbore has been damaged by the drilling or. Well stimulation vessel 6014 well stimulation vessel 6014 length meter length feet 61 200. Many types of acids that are used in acid stimulation of oil wells, fall into two major. Sandstone matrix acidizing knowledge and future development. Well stimulation treatments sb 4 definition of well stimulation. The drake well was located in the middle of quiet farm country in northwestern pennsylvania, and sparked the international search for an industrial use for petroleum. Stimulation with ultrasound is not a common operation offered by oil service companies. An overview of hydraulic fracturing and other formation. This report is an updated version of the previous report an overview of hydraulic fracturing and other formation stimulation technologies for shale gas production, published in 20 eur 26347 en, isbn number 9789279347290, pubsy number jrc86065.
He was a worldrenowned chemical and petroleum engineer with great accomplishments in both disciplines. The international journal of engineering and science ijes volume 4 issue 5 pages pp. Pearson offers special pricing when you package your text with other student resources. When oil or gas is found in an easily extractable form, it is typically located in a reservoir. Robert s schechter oil well stimulation free ebook download as pdf file. Sometimes, a well initially exhibits low permeability, and stimulation is employed to commence production from the reservoir.
1228 592 520 1287 1347 1131 1518 1042 170 436 1549 853 429 1179 926 485 305 797 549 1128 1440 466 512 308 584 343 87 812 321 1437 1400 1420 1258