SU137085A1 - Bottom plug for cementation wells - Google Patents
Bottom plug for cementation wellsInfo
- Publication number
- SU137085A1 SU137085A1 SU559683A SU559683A SU137085A1 SU 137085 A1 SU137085 A1 SU 137085A1 SU 559683 A SU559683 A SU 559683A SU 559683 A SU559683 A SU 559683A SU 137085 A1 SU137085 A1 SU 137085A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- wells
- cementation
- bottom plug
- cement
- casing
- Prior art date
Links
Landscapes
- Reciprocating Pumps (AREA)
Description
Известные нижние пробки, примен емые при цемептпых заливках скважин и предназначенные дл разделени цементного раствора от других жидкостей вплоть до момента доставки раствора к низу обсадной колонны, несут на себе подпружиненный клапан, который открываетс штырем в центре крестовины, смонтированной на кольце стоп.The known lower plugs, used in cement wells, and intended to separate the cement slurry from other fluids until the solution is delivered to the bottom of the casing, carry a spring-loaded valve, which opens with a pin in the center of the cross, mounted on a stop ring.
Предлагаема нижн пробка проще известной, так как она выполнена глухой и снабжена мембраной, например, из чугуна, разрушаемой иод воздействием веса столба цементного раствора и продавоч ой жидкости, а также под действием давлени , развиваемого насосами.The proposed lower stopper is simpler than the known one, since it is made deaf and equipped with a membrane, for example, of cast iron, which is destroyed by iodine by the influence of the weight of a column of cement mortar and squeeze fluid, as well as by the pressure developed by the pumps.
На чертеже показана предлагаема пробка.The drawing shows the proposed tube.
Корпус / пробки, имеющей раструб 2 в верхней части, сиабжеи в нижней части фланцем 3, к которому болтами прикреплены мембрана 4, металлическое кольцо Г) и манжета 6.A housing / stoppers having a bell 2 in the upper part, a flange 3 in the lower part, a flange 3 to which the membrane 4 is bolted, a metal ring D) and a cuff 6.
Процесс це.ментной заливки ведут в такой последовательности. Устанавливают нижнюю пробку в обсадную колонну и заканчивают в последнюю все необходи.мое кол-ичества цемента. Затем устанавливают верхнюю цементировочную пробку обычной конструкции и,закачивают продавочную жидкость (глинистый раствор, вода) до заполнени колонны . К этому времени нижн пробка подойдет к низу обсадной колонны и остановитс на кольце. Продолжа нагнетать в обсадную колонну продавочную жидкость, поднимают давление до величины, при которой разрушаетс мембрана, и цементный раствор выливаетс в затрубное пространство с максимальной скоростью.The process of filling the cells is carried out in the following sequence. The bottom cork is installed into the casing and the last amount of cement is finished. Then, the upper cementing plug is installed in a conventional design and a squeezing fluid (mud, water) is pumped in before filling the column. By this time, the bottom plug will approach the bottom of the casing and stop at the ring. Continuing to pump squeezing fluid into the casing, pressurizes to the value at which the membrane breaks down, and the cement slurry is poured into the annulus at maximum speed.
Предмет изобретени Subject invention
Пижн пробка дл цементации скважин, отличающа с тe, что, с целью резкого увеличен.ч скорости вход щего потока цементного раствора в затрубком пространстве, пробка вриполнена глу.хой иPizhn tube for cementation wells, which is different from that, in order to dramatically increase the speed of the incoming flow of cement in the annulus space, the plug is filled with deep sound and
снабжена хрупкой мембраной, например, из чугуна, разрушаемой нод воздействием суммарного веса столба цементного раствора и продавочной жидкости, а также под действием энергии сжатой жидкости.it is equipped with a fragile membrane, for example, from cast iron, which is destroyed by a node by the impact of the total weight of a column of cement slurry and a squeezing fluid, as well as by the energy of a compressed liquid.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU559683A SU137085A1 (en) | 1956-10-04 | 1956-10-04 | Bottom plug for cementation wells |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU559683A SU137085A1 (en) | 1956-10-04 | 1956-10-04 | Bottom plug for cementation wells |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772535514A Addition SU724107A2 (en) | 1977-10-19 | 1977-10-19 | Elastic pipe washing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
SU137085A1 true SU137085A1 (en) | 1960-11-30 |
Family
ID=48293315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU559683A SU137085A1 (en) | 1956-10-04 | 1956-10-04 | Bottom plug for cementation wells |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU137085A1 (en) |
-
1956
- 1956-10-04 SU SU559683A patent/SU137085A1/en active
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