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Safety Kava Use Check And Precautions

Jul 21, 2017

Safety Kava is used in the drill collar, take the heart tube and large diameter pipe with the kava and use, to prevent the drill into the well. By a number of sections of the Cava through the pin hole pin into one, both ends through the chain with the screw pin connected with a screwdriver adjustable. Change the number of teeth of the cardboard, can adapt to different sizes of drill collar and string.


For the drill collar without the shoulder, use safety kava.

Safety Kava tile at least by the dental plate sets, kava teeth, springs, adjust the screw, nuts, handles and connecting rods and other components.

Safety Kava in use, tighten the nut, with a hammer to tap the various pins, so that each card in the circumferential direction of the full contact with the drill collar, which play a security role.

Safety Kava from Kava 5cm.

1, before use check

1) Kawa teeth wear the original height of the 1/4 should be replaced when the new dental plate;

2) the new dental plate installed in the dental plate if the shaking, kava body scrapped;

3) the flexibility of the hinge parts, parts complete, wear and replace after wear;

4) the opening of the tile is not less than the nominal size of the drill;

5) At least 80% of the teeth can be exposed to the drill after installing the new dental plate;

2, note

should be based on well drilling tool to select the appropriate size of the tile.

check the degree of sharp teeth can not be loosened, can not be installed, whether clean, screw, cork pin whether the whole, fastening, connecting the pin should be flexible rotation.

after 1000 meters deep must use a double lift card from the drill, prohibit the use of kava with a card from the drill (land)

from the drill collar, the card should be used in conjunction with the safety of the tile. Kawa from the button deduction end face 50cm, safety card from the Kawa 5cm.

Wellhead operator should stand outside the scope of the Kava rotation, to prevent rotation when injured legs and feet.

3, maintenance and maintenance

(1) Prohibited drill pipe Kava when used by drill collar Kava.

(2) before use to check whether the rotation of the flexible parts, with or without blocking phenomenon.

(3) before use to check the kava body cone, bayonet with plastic deformation and excessive wear and so on. If you have to change the time, if dirt is filled with kava teeth, should be cleaned.

(4) not allowed to use overload, not allowed to use not supporting models.

(5) the use of the column should be avoided to avoid too fast, resulting in broken tile teeth or the surface of the pipe scratches deep, prohibit the use of overload and fast drilling when the shot

(6) After use, clean the kava, the cardwa diagonal to keep clean, and often lubricated with oil, exposed surface coated with anti-rust grease, placed in the indoor ventilation and dry place.

(7) Caba teeth should be placed in accordance with the provisions of the number of sets, not free to reduce.

(8) timely replacement of wearing parts.

(9) field operations, should keep all parts clean.

Shandong Yukos Petroleum Equipment Co., Ltd., located in the beautiful petroleum city - Dongying in the Yellow River Delta, is a production research and development enterprise with product research and development organizations and perfect service teams, mainly engaged in the management, research and development of petroleum drilling and well repair equipment, special oilfield equipment, oil extraction equipment, wellhead and down hole tools, and the provision of petroleum engineering design schemes and petroleum engineering technical services.


Through the continuous development and unremitting efforts, on the basis of the stable domestic market, relying on the product quality, competitive price advantage and high-quality and efficient services, the company has been vigorously exploring the international market and expanding the foreign cooperation channels to export the products to the United States, Canada, Russia and other countries.