Präsentation drilling services ukraine 23 10 2012
•Download as PPT, PDF•
1 like•846 views
Recommended
More Related Content
What's hot
What's hot (19)
Similar to Präsentation drilling services ukraine 23 10 2012
Similar to Präsentation drilling services ukraine 23 10 2012 (11)
Präsentation drilling services ukraine 23 10 2012
- 1. Наклонно-направленное бурение - возможности 23. Oktober 2012 Методы увеличения общей добычи при помощи технологий сервисов по бурению в зрелых коллекторах Подготовил: Чарли Хенгервос 1 © 2009 Weatherford. All rights reserved.
- 2. Сравнение вырезки окна в обсадной колонне и бурение новой скважины Вырезка окна в существующей скважине Новая горизонтальная скважина Build Rate: 5°/30m Build Rate: 20°/30m © 2009 Weatherford. All rights reserved. 2
- 3. Типы окон в скважинах КРС © 2009 Weatherford. All rights reserved. 3
- 4. Оборудование для зарезки окон при фрезеровочных работах © 2009 Weatherford. All rights reserved. 4
- 5. Системы зарезки окон Whipstock ™ QuickCut Casing Exit System—Hydraulic Set/ Гидравлический ™ QuickCut Casing Exit System—Mechanical Set/ Механический Openhole Systems/ Системы для работ в открытом стволе ™ QuickCut Casing Exit System—Permanent Packer/ Постоянный/ неизвлекаемый пакер ™ ™ QuickCut Casing Exit System—PackWhip © 2009 Weatherford. All rights reserved. 5
- 6. QuickCut™ Casing Exit System (Hydraulic Set)/ Гидравлическая система Характеристики • Запатентованная система Accuset™ внутри ведущей фрезы обеспечивает надежную активацию якоря • Компоновка с открытым концом обеспечивает постоянный поток для управления скважиной и работ LWD/MWD перед активацией якоря • Уникальная технология захватов защищает уипсток при зарезке и точно направляет фрез в стенку обсадной колонны • Параметры срезывающего усилия для болта крепления фрезы возможно регулировать для различных профилей скважины • Возможны различные методы извлечения уипстока Back to © 2009 Weatherford. All rights reserved. Main Menu 6
- 7. QuickCut™ Casing Exit System (Mechanical Set)/ Механическая система Характеристики • Уникальная технология захватов защищает уипсток при зарезке и точно направляет фрез в стенку обсадной колонны • Параметры срезывающего усилия для болта крепления фрезы возможно регулировать для различных профилей скважины • Дизайн соединения гибкого фреза может включать ориентирующий переводник (UBHO) и корпус с обратным клапаном • Возможны различные методы извлечения уипстока Back to © 2009 Weatherford. All rights reserved. Main Menu 7
- 8. QuickCut™ Casing Exit System (Mechanical Set)/ Механическая система Применения • Эффективный и рентабельный метод зарезки бокового ствола в существующих скважинах • Где зарезка окна в обсадной может быть выполнена независимо от азимута ствола (возможны окна с высокими и низкими значениями) • Для вырезки окон в обсадных с несколькими колоннами © 2009 Weatherford. All rights reserved. 8
- 9. ShallowAngle QuickCut™ Casing Exit System (Mechanical Set)/ Механическая система Преимущества • Агрессивная геометрия ведущей фрезы улучшает скорость проходки и сохранение диаметра • Эффективность за один спуска; ориентирование, установка якоря и зарезка окна за один спуск • Конусная секция с углом 1.92° производит плавный переход из основного ствола в боковую секцию • Выполняет зарезку полноразмерного окна и шурфа/ бокового ствола • Обеспечивает минимальный боковой ствол для плотных пластов • Компоновка фрезов и уипстока спроектирована для быстрой сборки на полу буровой © 2009 Weatherford. All rights reserved. 9
- 10. Ориентация уипстока • При помощи наземного гироскопа с записью, если наклон ствола менее 5°. • При помощи системы MWD, если наклон ствола более 5°. © 2009 Weatherford. All rights reserved. 10
- 11. Важность ориентации Неточная установка уипстока имеет отрицательное воздействие на качество кривой – первичный азимут очень важен. Применяемая технология фрезерования может изменить средний радиус в малый и наоборот. При обычной работе с уипстоком: • первые 60 футов бурятся без точных данных по азимуту (если не используется направляющий гироскоп). • первый точный азимут появляется на 45° отклонения долота . При секционном фрезеровании (45 футов). © 2009 Weatherford. All rights reserved. 11
- 12. КНБК для вырезки окна в обсадной К-во НД Описание Ед. ID Длина Общ. Трехшарошечное долото/ 1 4 1/8" Client 0,15 0,15 Tricone IADC 447 X 1 3 3/4" Comdril 7/8 M/L 6.7 St. 2,77° BH, slick WFT PDM 6,30 6,45 Переводник/ 1 3 3/4" WFT 0,50 6,95 X.O. 2 7/8"reg pin x 2 7/8" Acme box Нижняя немагнт. УБТ 1 3 3/8" WFT MWD 5,00 11,95 Lower NM Collar Верхняя немагнт. УБТ 1 3 3/8" WFT MWD 5,00 16,95 Upper NM Collar 1 3 3/8" Pulser sub WFT Pulser 1,00 17,95 Переводник 1 3 3/8" WFT 0,50 18,45 X/O 2 7/8" Acme pin x 2 3/8" IF box Переводник 1 3 3/8" WFT 0,50 18,95 X/O 2 3/8" IF pin x 2 3/8" WT 23 box 40 2 7/8" БТ/ DP WT 23 WFT 360,00 378,95 Переводник 1 4 3/4" WFT 0,80 379,75 X-over WT 23 p x 3 1/2 " IF b 17 4 3/4" УБТ/ DC Client 36,00 415,75 1 4 3/4" Яс/ Jar WFT 4,00 419,75 12 4 3/4" УБТ/ DC Client 108,00 527,75 3 1/2" БТ до поверхности/ DP to Surface Client © 2009 Weatherford. All rights reserved. 12
- 13. Используемое оборудование © 2009 Weatherford. All rights reserved. 13
- 14. Система MWD © 2009 Weatherford. All rights reserved. 14
- 15. Планируемая траектория для новой скважины © 2009 Weatherford. All rights reserved. 15
- 16. КНБК © 2009 Weatherford. All rights reserved. 16
- 17. 6 ¾” забойный двигатель © 2009 Weatherford. All rights reserved. 17
- 18. 4 ¾” забойный двигатель © 2009 Weatherford. All rights reserved. 18
- 19. Установка ГК Marker © 2009 Weatherford. All rights reserved. 19
- 20. Работы по Украине, горизонтальные скважины Опыт работы в Украине Начало Конец, Конец, Макс. Макс. Макс. Страна Заказчик Скважина Начало Диаметр MD MD TVD кривизна угол Темпер. m m m °/30m ° °C UA JKX / Eurodril Молчановское 203Z May 2004 8 1/2", 6" 809 3142 2608 7,69 92,10 UA JKX / Eurodril Молчановское 150Z Aug 2004 6" 2795 3150 2714 9,41 93,80 UA JKX / Eurodril Молчановское 204Z Sep 2004 8 1/2", 6" 1003 3300 2611 11,49 94,00 UA JKX / Eurodril Молчановское 203Y Dec 2004 6" 2660 2980 2604 12,21 87,40 UA JKX / Eurodril Молчановское 152Z May 2005 6" 2549 3057 2713 9.43 91.70 UA JKX / Eurodril Молчановское 151X Aug 2005 6" 2585 3082 2713 11.36 92.90 UA JKX / Eurodril Молчановское 154Z Mar 2006 6" 2648 3007 2705 12,92 92,20 UA JKX / Eurodril Молчановское 153 Jul 2006 8 1/2", 6" 1191 3005 2710 11,10 88,50 UA JKX / Eurodril Молчановское 166 Apr 2009 12 1/4",8 1/2", 6" 1151 3155 2680 11,01 92,75 12 1/4",8 1/2", 6", 5 UA JKX / Eurodril Молчановское 168 Sep 2009 1/2" 1049 3242 2694 26,49 91,43 UA JKX / Eurodril Молчановское 169 Dec 2010 12 1/4",8 3/8", 6" 1230 3465 2666 10,53 93,98 69,00 UA PPC Молчановское 166 ST Sep 2011 12 1/4", 6" 2721 3030 2666 28,17 91,43 © 2009 Weatherford. All rights reserved. 20
- 21. Thank you for your attention Any questions please? © 2009 Weatherford. All rights reserved. 21
Editor's Notes
- Good morning Ladies and Gentlemen, My name is Charly Hengevoß and I‘m the Drilling Services Technical BD & Sales Advisor from Weatherford Ukraine LLC. I feel privileged to stand here and speak to you. The topic I’ve chosen is: “ How to Improve Overall Recovery with Drilling Services Technology in Mature Reservoirs “. The presentation will show some aspects on improving production by using directional drilling services Weatherford supplies in Ukraine.
- The aim of horizontal sections is to increase the active length of the borehole in the production zone. The left plan shows the trajectory of a typical casing exit in 5“ casing with a target zone at 2.300 m TVD and a horizontal section of 200m. The plan on the right shows the same scenario for a new well with a kick of in the 8 ½“ section but with a horiyontal section of 500 m. To reach horizontal different build rates are needed. 20°/30 m for the casing exit versus 5°/30 m for the new well.
- For casing exit two different techniques can be applied: Section-milling or Whipstock Section-milled windows take longer than whipstocks. They allow starting higher, thus reducing BUR. On the same well, there could be a difference of 7° at the equivalent “whipstock rathole” depth. When a whipstock is used, undercutting may occur as much as 3 ft above the top. This is important to avoid in case of a water zone . Two- trips whipstock require less rathole than one trip. A long rathole increases BUR needed and implies drilling a tighter curve. Two famous “one trip whipstock” have the first two mills undergauge. Consequently the top mill needs to pass the bottom of the whip-stock. This means loosing as much as 9 ft of TVD. On a semi-straight hole, 9 ft of TVD lost equates to 11° DLS extra (in a 70-ft curve). For a 40-ft curve 9 ft TVD lost equates to 40° DLS extra.
- The Weatherford section mill is a hydraulically activated tool used to mill a section of casing or tubing. The section mill is simple in design, is easy to operate, and has an outstanding reputation for performance and durability Milling knifes are dressed with Weatherford’s CustomCut™ tungsten carbide inserts to provide extended footage with maximum penetration rates. The section mill is run in conjunction with a taper mill, which has an integral carbide nozzle threaded in the bottom end. Combined with the integral pack-off system, this configuration allows positive fluid control to the section milling knives. The Weatherford section mill is a product of the company’s MillSmart™ technology – an engineered approach to milling that encompasses a wide range of prooven products, services, and technical resources, developed and refined by the world’s largest and most experienced provider of milling and fishing services.
- For whipstocks I‘ll concentrate on hydraulic and mechanical set here.
- Features Patented Accuset ™ system inside lead mill provides reliable anchor activation Open-ended BHA allows continuous flow for well control and operation of LWD/MWD before activation of anchor Unique lug technology protects the whipstock during cut-out and accurately directs the mill into the casing wall Shear value for the mill attachment bolt can be adjusted for varying well profiles Multiple methods of whipstock retrieval available Benefits Aggressive lead mill geometry improves rate of penetration and gauge retention Hydraulic activation of the anchor eliminates the need for a false bottom One-trip efficiency; orients, anchors, and mills the window in one run 3° single-angle concave generates a smooth transition from the parent bore into the lateral section Produces full gauge window and rat hole Provides minimal rat hole for tough-to-drill formations Milling BHA and whipstock designed for safe, quick rig floor makeup Applications Where full bore is a requirement after the lateral has been drilled For flow-through capabilities where commingling is a requirement; for example, a level 2 multilateral For severely inclined or deeper wells in which a bridge plug may be more costly and difficult to position Where a casing exit can be created independent of hole azimuth (high and low side exits are possible) For casing exits through multiple strings of casing
- Features Unique lug technology protects the whipstock during cut-out and accurately directs the mill into the casing wall Shear value for the mill attachment bolt can be adjusted for varying well profiles Flex-mill tool joint design can incorporate a UBHO sleeve or float body Multiple methods of whipstock retrieval available
- Applications Efficient and cost-effective method of sidetracking existing wellbores Where a casing exit can be created independent of hole azimuth (high and low side exits are possible) For casing exits through multiple strings of casing
- Benefits Aggressive lead mill geometry improves rate of penetration and gauge retention One-trip efficiency; orients, anchors, and mills the window in one run 1.92° single-angle concave generates a smooth transition from the parent bore into the lateral section Produces full gauge window and rat hole Provides minimal rat hole for tough-to-drill formations Milling BHA and whipstock are designed for safe, quick rig floor makeup
- With a Surface Recording Gyro if Borehole Inclination is below 5°. With an MWD System if Borehole Inclination is above 5°. Inside casing the Earth’s magnetic field is disturbed by the metal. So for small inclination where the Earth’s gravity field cannot be used safely to determine the position of the whipstock in relation to the wellbore axis a gyro orientation will be required not only for orienting the whipstock but also for orienting the steerable system.
- A whipstock set wrong has a negative impact in the quality of the curve — initial azimuth is important . The milling techniques used can transform a medium radius into a short radius and vice versa. On the average job, this is what happens, with a whipstock: • The first 60 f t are drilled without reliable azimuth data (unless steering gyro is used). • The first valid azimuth appears with 45° of drift at the bit. With section milling (45 ft). • The first 25 ft are drilled without reliable azimuth data. • The next 29 ft (25 ft to 54 ft) are drilled with valid azimuth data.
- The biggest difference in azimuth may happen at the start. Using a “steering type gyro” (especially with whipstock) eliminates this risk. Short-radius motors are less powerful but BHAs are limber. Minimum DP should be run above the motor on the first BHA to minimize reactive torque. It is better to drill slower until a clean TF is obtained. A large azimuth error may require a cement plug. Short radius is like drag racing — there is no cure for a bad start.