Product Details
API standard drilling crossover sub lift sub and drill bit sub
Description :
Cross-over sub acts for conversion and connection of drill stem
component in petroleum,natural gas and geology drilling work. It is
used mainly for connecting of upper drill tools and lower drill
tools during drilling operations.
Specification :
There are three types such as pin*pin, pin*box, box*box. We carry
size range of 2-3/8", 2-7/8″, 3-1/2″,4″ and 4-1/2″ in J55, K55,
N80, P110 grade.
All of our couplings meet the API Specifications 5CT/5B.
1. Size: 2-3/8″, 2-7/8″, 3-1/2″, 4″, 4-1/2″
2. Standard: API 5CT /5B
3. Model : EUE ,NUE
4: Material : Alloy Steel as buyer requirement
4. Grade: J55/K55/N80/L80/P110
5. Type : PIN*PIN ,PIN*BOX ,BOX*BOX
6. Application Industries : Oil , Gas, water ,Mining drilling
industry
Aviable Size :
Size | Type of Thread | O.D*L (mm) | Weight(kg) |
2-3/8" | NUE | 73.02*107.95 | 1.28 |
2-7/8" | NUE | 88.90*130.18 | 2.34 |
2-7/8" | EUE | 93.17*133.35 | 2.40 |
3-1/2" | NUE | 107.95*142.88 | 3.71 |
3-1/2" | EUE | 114.30*146.05 | 4.10 |
4" | NUE | 120.65*146.05 | 4.35 |
4" | EUE | 127.00*152.40 | 4.82 |
4-1/2" | NUE | 132.08*155.58 | 4.89 |
4-1/2" | EUE | 141.30*158.75 | 6.05 |
Manufacuture Process :
The sub adapter of drill-class production technology, and has
formed a complete production system has a number of leading level
of electro-hydraulic forging hammer, to control atmosphere furnace
heat treatment production line and excellent Seiko CNC machine tool
production equipment. All parts CNC machining, the key technology
of CNC control to ensure that the products of high quality, high
reliability.
Company Profile
Suzhou Energy Tool Co., Ltd . (short for “ENG ” ) is a high-tech
company formed by a group of drill bit experts with over 20 years
of work experience in the world's top oil service companies. ENG
has cooperated with many research institutes at home and has formed
an advanced technological system based on market-oriented and
continuously promoting technological innovation and product
improvement. ENG‘S bits production lines are equipped with 5-axis
machining centers, Modern lathes, and FMS (Flexible manufacturing
system ) and can produce matrix body and steel body PDC bits from
3-1/4” to 26” in diameter.

ENG has been keeping on producing high-quality products to meet the
buyer diffferent requirement of different drilling well and rock
fromation . The company’s QMS has been award API, ISO 9001
certification for many years. ENG has Obtained 21 patents by
Chinese government .On the products Research and Development, ENG
has built the basis of 3-dimensional CAD and PDM (Product Data
Management ), can technically control the whole process of product
manager, so that the product development can be done in a fast and
precise manner to maximally meet the time and function requirement
of the market for product lifecycle management.


ENG developed different performance series PDC cutters for PDC bit
to meet different drilling applications and drilling requirements
of different formations. Some PDC Cutter is imported from the USA
Or Europe. ENG's advantage is high product quality, short delivery
time, small lot, and multi-types. The products have been exported
to over 10 countries Such as the USA, Australia, Indonesia,
Thailand, Malaysia, Indonesia, Argentina, and so on.

