... drilling4) delivery on time5) Size according to your request6) drill collar,stick drill collar,non-magnetic drill collar,spiral drill collar covering all size.Product description:1.AISI4145H or 4145HM ... alloy steel is put to use for the material of drill collar. 2.We adopt advanced technic for full length heat treatment ... to contact us, there will a good surprice for you! magnetic spiral drill collar
... by large rigidity. The Drill collar are manufactured strictly from API Spec7-1 standard. B. Spiral Drill CollarNote: Spiral drill collar is used to reduce ... slip groove made on box thread face of slick drill collar or spiral drill collar can be used as lifting sub and safety ... . Hardbanding is optional at customers’ requests. D. Non-magnetic Drill CollarThe as cold rooled finish on both ID and OD ...
... .Timely delivery 5.API Spec 7-1 1. Material: Non magnetic steel2. Shape: It is the round pipe with smooth surface ... .6. Magnetic permeability(MPS=1×105/4∏A/m) 1). Average: Ur<1.010. 2). Magnetic Field Gradient: ΔB≤0.05μT. Spiral drill collar
... . Length: 10'--31' API 7-1 Standard spiral drill collar API spiral drill collarWe could provide you Drill Collar with positive price and fine deliver time.API ... API Spec7Material: AISI 4145H Alloy Steel and Non-magnetic materialOD: 3-1/8"~11" Length: 10"~31"API 7-1 Standard spiral drill collar
... price, but also products performance. We assure every piece of Drill Collar leaving our facility conform to the requirements of API SPEC ... , test and inspection are performed. We do Ultrasonic Testing and Magnetic Partical Testing before and after Heat Treatment. Specimen have been ... to clients' requirements. We provide steel thread protector for free. spiral drill collar
It is used to reduce contact area with hole in order to avoid efficiently bit sticking from different pressure. Spiral drill collars are one kind of the products of our company and are manufactured strictly according to API Spec 7 and Standard SY/T5144-1997.It is used to reduce contact area with hole in order to avoid efficiently bit sticking from different pressure. spiral drill collar
... for differential sticking with Parveen's Spiral Drill Collars. They reduce the amount of contact between the drill collar and the wall of hole ... the corrosion test as specified in ASTM A262 practice.5. Drill collar bodies are inspected ultrasonically full length over the circumference of ... E214 and / or ASTM E1001 (immersion method). 9 1/2" Spiral Drill Collar( Apispec7) Aisi4145h Alloy Steel
... -70 Spiral drill collar. 2.O.D:3 1/8"-11",I.D:1 1/2"-3". 3.NC-23~NC70 The drill collar is ... to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. drill collar are ... .23NC70-1002541076.238 5/8 REG279.41176.23 NC-70 Spiral drill collar
API Spec7-1 and NS-1 Standard , Alsp Norsok Spec. 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. Spiral drill collar
... treatment technique4.UT&MT Inspection5.Can produce normal Drillcollar,Spiral Drillcollar and Non-Magnetic Drillcollar6.The first place domestic sale,the top ... with Tuboscope 1)Quality Control-Tuboscope Inspection on all New Drill Pipes with Tuboscope Inspection certificates Certificate of Inspection ftom Tuboscope ...
Design & working procedure Conform to the requirment of API Spec 7;Non-API standard type of drill collars are also available. 01 Design & working procedure Conform to the requirment of API Spec 702 Non-API standard type of drill collars are also available as per client'request03 Cold-rolled thread roots04 Thread connections are performed with stress relief grooves05 phosphated threads applied
Non-magnetic Drill Collar 1,API standard drill collar 2,It is designed in accordance with SY/T 5144-1997 standard. Drill Collar1,API standard Non-magnetic Drill Collar2 ... mm71.4 mmNC56-8030Non-magnetic228.6mm71.4 mmNC61-9030 Non-magnetic Drill Collar
... 4mm 3. factory directly delivery Spiral drill collar is the main products in Jiangsu HEXIN, such drill collar can provent drilling process in ... reduce the block have the possibility of differential pressure.Spiral drill collar had been widely used because of the characteristics of ... its own decesion,this special spiral drill collar to reduce the tube wall and the contact area. ...
... as to avoid efficiently bit sticking from differential pressureC. Spiral Drill Collar With Elevator Groove And Slip Groove: used as lifting ... SPEC7_1. Hard_banding is optional at customers' requests.D.Non magnetic Drill Collar: cold rolled finish on both ID and OD surface ... procedures: Testing of surface dimensions and ultrasonic wave and magnetic particle testing over the whole length of a product ...
Drill Collar 1.Reliable quality and Reasonable price 2.API Spec7-1 ... .ID size from 79.4mm to 279.4mm... Oilfield Drill Collar The Drill Collar of Zhongzhong is made from AISI 4145H alloy steel, and ... keep right trace by providing the pressure and weight for drill head. Specification: ConnectionsODmmIDmmLengthmmNC23-3179.431.89150NC26-3588.938.19150NC31-41104 ...
... wide range of slick, spiral and non-magnetic drill collars. 3 1/8" to 14" OD. Drill collars are designed to ... force in drilling activity, and keep the entire drill string on target. Teda Special Pipe Co Ltd ... the success of the most critical process in manufacturing drill collars.u Precision borers provide extremely straight bores ... information please visit www.chinateda.com API Drill Collar
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