BTC casing buckle type

1. At present, Chinese citizens are eligible to apply for APEC Business travel cards: (1) government officials engaged in APEC affairs or in charge of travel card business, as well as Chinese officials working in APEC organizations 2 Management personnel, main business personnel and technical personnel in large state-owned enterprises under central management 3 Personnel of local state-owned enterprises 4 Personnel of private enterprises 5 Chinese (mainland) personnel in Sino foreign joint ventures, wholly foreign-owned enterprises and Taiwan, Hong Kong and Australia funded enterprises. The above-mentioned persons must hold valid PRC passport and frequently travel to APEC economies e to work needs. They have no criminal record or have been refused visa by foreign countries, especially the economies implementing the travel card scheme.

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3. This is the boss of online games```

4. Specification: oil tubing 2-3 / 8 "- 4-1 / 2", end processing form nue, eue. Oil casing 2-3 / 8 "- 20" perennial spare oil casing, more than 1000 tons in stock, api5ct tubing, api5ct casing, oil pipe specification 26.67-114.3mm. Api5ct oil casing specification is 114.3-508mm. Material: h40.j-55, k-55, N-80, l-80, C-90, c-95, P-110, q-125, etc. There are STC (short round buckle), LTC (long round buckle), BTC (partial ladder buckle), VAM (wangba buckle) and other buckle types of api5ct oil casing. Api5ct oil casing length R1, R2, R3
from: China investment casting portal

5. It's a kind of oil casing specification... You are engaged in Shenma work....

6. same! All of them are long round threads.

before the eighth edition of api5ct, they were all represented by LTC.

after the ninth edition, LC was used to represent long round, SC short round, BC, partial ladder.
if you have any questions, please send me email [email protected]

7. Surface casing 20 & quot; Density: 106.5ppf, steel grade: k-55, button type: BTC (partial trapezoidal thread coupling), run in 26 & quot; The borehole is 800 feet,
technical casing 13-3 / 8 & quot; Density: 54.5 & 68 PPF, steel grade: l-80, button type: BTC (trapezoidal thread coupling), 17-1 / 2 & quot; 4000 ft
technical casing 9-5 / 8 & quot; Density: 47 & 53.5 PPF, steel grade: l-80, button type: BTC (partial trapezoidal thread coupling), run in 12-1 / 4 & quot; Well bore 9000 ft,
reservoir casing 7 & quot; Density: 29ppf, steel grade: c-95, button type: BTC (partial trapezoidal thread coupling), running 8-1 / 2 & quot; The wellbore is 9600 feet

9. 94ppf is a pound, BTC is a trapezoidal buckle

10. Buttress thread coupling is a kind of API standard thread connection type, which is commonly used in the connection of petrochemical pipes or tools, such as floating collar, guide shoe and pipe shoe used in cementing operation.