China Vigor Drilling Oil Tools and Equipment Co., Ltd

Xian Shaaxi, Shaanxi, China

Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from diffirential pressure. The drill collars are manufactired strictly according to API Spec7-1 and NS-1 Standard , Alsp Norsok Spec.

Casing pipe is used to line the hole in oil and gas well drilling. Vigor supplies a full range of high quality casing and tubing which are all manufactured according to API 5CT and API 5B. Our oil casing includes seamless casing and ERW casing. OD: 114.3mm –508mm Length: R1/R2/R3 Material: H40、J55、K55、N80、M65、L80、C90、T95、P110. Speciality: L80 9Cr, 13Cr Casing available According to API SPEC 5CT and API SPEC 5B. The max. length of pipe for hydrostatic testing is up to 14.63 meter. We adopt the most advanced threading machines and numerical control machining equipment. The test pressure of the hydrostatic testing machine is up to 70MPa.

Vigor's Drilling Stabilizer is made from AISI 4145 H Modified Alloy Steel .Heat treated to 285-341 Brinell Hardness and 54 Joules minimum impact value. All physical properties would be guaranteed 1" below the surface. All threads are made strictly in accordance with API 7-1 specification. Qualified to NS-1 Standard. HARD FACING TYPE: HF1000 Hard Facing with Crushed Carbide HF2000 Hard Facing with Crushed Carbide with Trapizoidal Insert HF3000 Hard Facing with Tungsten Carbide insert set in a power spray deposit HF4000 Hard Facing with Tungsten Carbide insert set HF5000 Hard Facing with Fused Tungsten Carbide in Nickle Chrome boron matrix

Vigor’s Hole openers are available with carbide-milled teeth and insert cutters. Arms and cutters are hardfaced for protection in three different designs for varying conditions and rock formations. The design of the hole opener allows for field-changing cutters. Special size is also available with detail well condition. They are used to enlarge the diameter of a pre-drilled hole or connected with a bit on front end to drill pilot hole and enlarge hole simultaneously. Material: AISI 4145H fully heat-treated alloy steel.

Tubing – a pipe through which the oil or gas is produced from the wellbore. Tubing joints are generally around 30 ft [9 m] long with a thread connection on each end. There are more than thirty breeds of tubing in total such as grades of J55 &N80&L80&P110, etc; types of NUE&EUE; Specifications of 1.9, 2-3/8, 2-7/8; 3-1/2, 41/2 inches .and also the left hand thread.The fabrication of thread uses full suite of digital-controlled lathe; the coupling tightening uses hydraulic machine with advanced digital-torsion meter; the company has four-channel intelligenteddy current detector , magnetic particle detector, We possesses two advanced upset tubing assembly lines, which can be used to the external upset shaping of plain-end tubing(J55, N80 and L80).This production line is totally automatic from feed-in to returned material; owing to adopting advanced second-forming artwork to upset pipe end, high-quality product is guaranteed. portable thickness tester, and single thread measuring instrument, etc. OD: 48.26mm –114.3mm Standard: API 5CT & 5B Material: H40、J55、K55、N80、M65、L80、C90、T95、P110. Connection: NUE, EUE. Specialty: L80 9Cr, 13Cr Tubing available

We are offering heavy weight drill pipe 01 design & working procedure confirm to the requirment of api spec 02 non-api standard type of drill collars are also avalible as per client'request 03 cold-rolled thread roots 04 low alloy steel as material applied 05 integral forging, no welds 06 hard banding can be added as per client �request 07 option integral heavy weight drill pipe with two central upsets and with spiral grooves are also available a. Integral heavy weight drill pipe the wall thickness of heavy weight drill pipe is between drill pipe and drill collar, its structure is similar with drill pipe. It is made from premium alloyed steel. Its both tool joints and middle upset are welded hardbands. Technical parameters meet with api spec7-1 standard. b. Integral spiral heavy weight drill pipe is to extend the central upset of heavy weight drill pipe and to cut spiral groove on heavy weight drill pipe.

Kelly is driving section of whole drill stem. Kelly is available eith square kelly and hexagonal kelly. There are manufactured strictly from API Spec7-1 and SY/T6509-2000 standard.

Drill Pipe, Mainly used in oil and gas exploration and development process of deep well, horizaontal well and extended reach well. With the Hardbading and Internal Coating. Standard: According to API Spec 5DP, We can produce the drill pipe as per NS-1 Spec.and Norsok Spec.as well. OD: 2 3/8”----6 5/8”, Length: R2 Steel Grade: E75, X95, G105, S135, Upset Style: IU, EU, IEU, Harbanding Type: Arnco-100XT, Arnco-200XT, Arnco-300XT, Arnco-150XT Internal Coating: TC2000, TK34, TK34-P