Subs
3-Ci Machining uses certified North American materials, API gauges and independent Quality Assurance oversight to guarantee the quality of products & processes. We specialize in the production of turned components, such as UBHO subs, primarily for use in the Oil & Gas industry in sizes up to 9.5" OD also available in non-mag.
Subs may be used when it is necessary to have frequent disconnection points. 3-Ci Machining Subs provide safe connection between joints of different sizes or types of drilling, tubing, or washover string sections having different end connections.
All our Cross-Overs and Subs are made according to API specifications (7-1 and/or 5CT) and API standard features can be added (stress relief grooves, bores for API float valves, etc.). They can be fitted with the whole range of API drill stem (REG, API, etc.) and casing threads (STC, LTC, BTC, etc.). VAM premium threads can also be used, as well as other special connections (Hydril FJWP, etc.) Our subs are fully machined from certified AISI 4145H alloy steel. Other materials such as non-magnetic steel, inconel, monel, stainless steel, aluminum, titanium, etc. can be used.
All components are built to form-fit and material spec as per user requirements. We have worked with 1515LC, P530, BeCu, 6061, 7075, 4140, 4142, 4145, and many more materials here in our shop.
Subs may be used when it is necessary to have frequent disconnection points. 3-Ci Machining Subs provide safe connection between joints of different sizes or types of drilling, tubing, or washover string sections having different end connections.
All our Cross-Overs and Subs are made according to API specifications (7-1 and/or 5CT) and API standard features can be added (stress relief grooves, bores for API float valves, etc.). They can be fitted with the whole range of API drill stem (REG, API, etc.) and casing threads (STC, LTC, BTC, etc.). VAM premium threads can also be used, as well as other special connections (Hydril FJWP, etc.) Our subs are fully machined from certified AISI 4145H alloy steel. Other materials such as non-magnetic steel, inconel, monel, stainless steel, aluminum, titanium, etc. can be used.
All components are built to form-fit and material spec as per user requirements. We have worked with 1515LC, P530, BeCu, 6061, 7075, 4140, 4142, 4145, and many more materials here in our shop.
3-Ci Machining specializes in the manufacture of Subs in sizes up to and including 9.5 inches OD. A few examples of the subs we can provide are listed below:
LIFTING SUBS:
Lifting subs can be either tapered or square shoulder types. They are available in all diameters and lengths. When ordering from 3-Ci Machining please specify size and type (A or B). |
BASKET SUBS:
We supply basket subs in all standard and custom diameters, with connections machined and finished according to API standards. When ordering, please specify whether top connection should be pin or box type. |
LIFTING PLUGS:
3-Ci Machining lifting plugs are made of heat treated steel alloy. Crown sections are bored out to reduce weight. They are available in all sizes, with or without lifting bail. When ordering please specify size and type. |
ROTARY AND KELLY SAVER SUBS:
Available from 3-Ci Machining in all standard diameters. When ordering please specify type of sub, largest OD, length between shoulders, bore, connection size and style, plus special features if required. |
CIRCULATING SUBS: Available from 4¾” to 9½” OD.
ORIENTING OR BENT SUBS:
All 3-Ci Machining orienting and bent subs are available in a variety of lengths and diameters. They are made of the same grades of steel as drill collars. When ordering orienting or bent subs please specify:
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3-Ci Machining regular production components
include built-to-spec:
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