drilling pipe box thread | casing thread | borehole | length(mm) |
NC38 | 5″BTC | 57 | 500 |
5″LTC | |||
5″STC | |||
NC38 | 5″BTC | 57 | 580 |
5-1/2″LTC | |||
5-1/2″STC | |||
NC50 | 7″BTC | 71 | 600 |
7″LTC | |||
7″STC | |||
NC50 | 9-5/8″BTC | 71 | 620 |
9-5/8″LTC | |||
9-5/8″STC | |||
NC50 | 10-3/4″BTC | 71 | 670 |
10-3/4″LTC | |||
10-3/4"STC | |||
NC50 | 13-3/8″BTC | 71 | 670 |
13-3/8″LTC | |||
13-3/8″STC |
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casing & tubing Circulating Sub
casing & tubing Circulating Sub
| Payment Terms: | T/T,L/C |
|---|
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- Product Details
- Company Profile
- Product Reviews
Basic Info.
- Brand Name: shuangjia
- Model No.: fill sizes
- Place of Origin: Heilongjiang
- Min.Order: 1 Piece/Pieces
- Means of Transport: Ocean, Air, Land
Supply Capacity
- Production Capacity: 5000sets
- Packing:seaworthy packing
- Delivery Date: 40days
The circulating sub is connected between wellhead pipe string and ground circulating system. when casing is running or finished running. The circulating sub is connected to make fluid circulation. According to the application, the circulating sub is connected between Kelly and casing or between hose and case. The former is used for fluid circulation during connecting of casing. The later generally is used after connecting of casing.
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