SU1209897A1 - Method of determining the height of zone of producing gas- and water-conditioning fissures - Google Patents
Method of determining the height of zone of producing gas- and water-conditioning fissures Download PDFInfo
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- SU1209897A1 SU1209897A1 SU843742074A SU3742074A SU1209897A1 SU 1209897 A1 SU1209897 A1 SU 1209897A1 SU 843742074 A SU843742074 A SU 843742074A SU 3742074 A SU3742074 A SU 3742074A SU 1209897 A1 SU1209897 A1 SU 1209897A1
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- USSR - Soviet Union
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- well
- insulating element
- fluid
- determining
- zone
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
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Изобретение относитс к горной промьшшенности.и может быть использовано дл определени высоты распространени зоны эксплуатационных трещин при подработке вышележащих пород горными работами.The invention relates to the mining industry. It can be used to determine the height of the propagation of the zone of operational cracks when working the overlying rocks by mining.
Цель изобретени - снижение трудовых и материальных затрат за счет уменьшени количества замерных скважин при сохранении заданной точности определени границ зоны трещинова- тости.The purpose of the invention is to reduce labor and material costs by reducing the number of metering wells while maintaining the specified accuracy of determining the fracture zone boundaries.
На чертеже представлена схема, по сн юща способ.The drawing shows a diagram explaining the method.
Способ реализуетс следующим образом.The method is implemented as follows.
В вертикальную скважину 1, пробуренную с поверхности на разрабатываемый пласт 2, опускают изолирующий элемент, например надувной резиновый тампон 3, подключенный к воз- духоподающей несущей магистрали 4 и насосу 5. В устье скважины устанавливают обсадную трубу 6, после чего скважину герметизируют при помощи заглушки 7, к патрубкам которой подключают измерительные приборы 8. На устье магистрали 4 устанавливают перекрывающий вентиль 9. Подъем и спуск изолирующего элемента осуществл ют подъемньм механизмом 10.In a vertical well 1, drilled from the surface onto the reservoir 2 under development, an insulating element is inserted, for example, an inflatable rubber tampon 3 connected to the air supply carrier 4 and the pump 5. A casing 6 is installed in the wellhead, after which the well is sealed with a plug 7, the measuring instruments 8 are connected to the branch pipes. A shut-off valve 9 is installed at the mouth of the line 4. The insulating element is lifted and lowered by means of a lifting mechanism 10.
Тампонирование скважины изолирующим элементом 3 начинают в породах на глубинеS заведомо не испытывающей вли ни подработки, величину h которой определ ют из математического выражени The packing of the well with the insulating element 3 begins in the rocks at a depth S of an undoubtedly undermining underworking, the value of which is determined from the mathematical expression
h Н - 80.т,h Н - 80.t,
10ten
1515
,09897, 09897
где Н - глубина скважины, м;where N is the depth of the well, m;
m - вынимаема мощность пласта, м. Опустив тампон 3 на требуемую высоту , магистраль 4 пропускают черезm - taken out reservoir capacity, m. Having lowered the tampon 3 to the required height, line 4 is passed through
5 отверстие в заглушке 7, подсоедин ют к насосу 5 и подают воздух в камеру тампона 3 до фиксированного давлени , при котором раздута камера плотно примыкает к стенкам скважины и преп тствует проникновению газа или воды по скважине с нижележащих горизонтов, после чего перекрывают магистраль 4 вентилем 9 и измерительными приборами 8 замер ют выделение газа или измер ют газовыделение в скважину над тампоном. После проведени цикла измерений вентиль 9 открывают, что приводит к падению давлени в камере, отсоедин ют магистраль 4 от насоса 5 и перемещают тампон 3 по скважине 1. Затем методом последовательных приближений в пределах участка скважины между разрабатываемьм плйстом и горизонтом , где тампонированием определ ют выделение флюида (воды или газа) в скважину над изолирующим элементом, при этом тампон перемещают в направлении забо скважцны, т.е. опускают5, the hole in the plug 7 is connected to the pump 5 and the air is fed into the chamber of the tampon 3 up to a fixed pressure, at which the chamber is inflated tightly adjacent to the walls of the well and prevents gas or water from entering the downstream horizons, then close the line 4 with a valve 9 and measuring instruments 8 measure the gas evolution or measure the gas release into the well above the tampon. After the measurement cycle is completed, the valve 9 is opened, which leads to a pressure drop in the chamber, disconnecting the line 4 from the pump 5 and moving the tampon 3 along the well 1. Then, by successive approximations within the well section between the developed plate and the horizon, where the release is determined by plugging fluid (water or gas) into the well above the insulating element, while the tampon is moved in the downhole direction, i.e. down
30 с шагом, равным средней мощности подрабатываемых слоев горных пород, в случае отсутстви увеличени естественного выделени флюида, или в направлении усть скважины, при этом шаг перемещени уменьшают вдвое30 in increments equal to the average thickness of the rock layers being worked up, in the absence of an increase in the natural release of the fluid, or in the direction of the wellhead, the displacement step is halved
по сравнению с предыдущим. Минимальное значение данного шага определ ют величиной заданной точности определени границы высоты зоны эксплуатационных газо- и водопровод щих трещин. compared to the previous one. The minimum value of this step is determined by the value of a given accuracy in determining the boundary of the height of the zone of operational gas and water conducting cracks.
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Редактор Е.ПаппEditor E. Papp
Составитель Н.Борщ-КомпанеецCompiled by N. Borscht-Kompaneets
Техред О.Неце Корректор Л.ПилипенкоTehred O. Niece Proofreader L. Pilipenko
Заказ 483/43Тираж 436ПодписноеOrder 483/43 Circulation 436 Subscription
ВНИИПИ Государственного комитета СССРVNIIPI USSR State Committee
по делам изобретений и открытий 113035, Москва, Ж-35, Раушска наб., д. 4/5for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
Филиал ГШП Патент, г.Ужгород, ул.Проектна , 4Branch GShP Patent, Uzhgorod, Proektna St., 4
II
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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SU843742074A SU1209897A1 (en) | 1984-02-24 | 1984-02-24 | Method of determining the height of zone of producing gas- and water-conditioning fissures |
Applications Claiming Priority (1)
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SU843742074A SU1209897A1 (en) | 1984-02-24 | 1984-02-24 | Method of determining the height of zone of producing gas- and water-conditioning fissures |
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SU1209897A1 true SU1209897A1 (en) | 1986-02-07 |
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SU843742074A SU1209897A1 (en) | 1984-02-24 | 1984-02-24 | Method of determining the height of zone of producing gas- and water-conditioning fissures |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105019936A (en) * | 2015-06-24 | 2015-11-04 | 柴兆喜 | Gas production mine for extracting coalbed methane of original coal field in water-seal drilling field |
CN108442917A (en) * | 2017-12-14 | 2018-08-24 | 中国矿业大学 | A kind of roof height of water flowing fractured zone underground continuous real-time monitoring method |
-
1984
- 1984-02-24 SU SU843742074A patent/SU1209897A1/en active
Non-Patent Citations (1)
Title |
---|
Турчанинов А.И. и др. Основы механики горных пород. - Л„: Недра, 1977, с. 114-117. Авторское свидетельство СССР № 385046, кл. Е 21 D 17/00, 1967. * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105019936A (en) * | 2015-06-24 | 2015-11-04 | 柴兆喜 | Gas production mine for extracting coalbed methane of original coal field in water-seal drilling field |
CN108442917A (en) * | 2017-12-14 | 2018-08-24 | 中国矿业大学 | A kind of roof height of water flowing fractured zone underground continuous real-time monitoring method |
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